} Transformation.PARAM_NAMES\n * @private\n * @ignore\n * @see toHtmlAttributes\n */\n\n\nvar transformation_Transformation = /*#__PURE__*/function (_TransformationBase) {\n transformation_inherits(Transformation, _TransformationBase);\n\n var _super = transformation_createSuper(Transformation);\n\n /**\n * Represents a single transformation.\n * @class Transformation\n * @example\n * t = new cloudinary.Transformation();\n * t.angle(20).crop(\"scale\").width(\"auto\");\n *\n * // or\n *\n * t = new cloudinary.Transformation( {angle: 20, crop: \"scale\", width: \"auto\"});\n * @see Available image transformations \n * @see Available video transformations \n */\n function Transformation(options) {\n transformation_classCallCheck(this, Transformation);\n\n return _super.call(this, options);\n }\n /**\n * Convenience constructor\n * @param {Object} options\n * @return {Transformation}\n * @example cl = cloudinary.Transformation.new( {angle: 20, crop: \"scale\", width: \"auto\"})\n */\n\n\n transformation_createClass(Transformation, [{\n key: \"angle\",\n value:\n /*\n Transformation Parameters\n */\n function angle(value) {\n return this.arrayParam(value, \"angle\", \"a\", \".\", expression.normalize);\n }\n }, {\n key: \"audioCodec\",\n value: function audioCodec(value) {\n return this.param(value, \"audio_codec\", \"ac\");\n }\n }, {\n key: \"audioFrequency\",\n value: function audioFrequency(value) {\n return this.param(value, \"audio_frequency\", \"af\");\n }\n }, {\n key: \"aspectRatio\",\n value: function aspectRatio(value) {\n return this.param(value, \"aspect_ratio\", \"ar\", expression.normalize);\n }\n }, {\n key: \"background\",\n value: function background(value) {\n return this.param(value, \"background\", \"b\", parameters_Param.norm_color);\n }\n }, {\n key: \"bitRate\",\n value: function bitRate(value) {\n return this.param(value, \"bit_rate\", \"br\");\n }\n }, {\n key: \"border\",\n value: function border(value) {\n return this.param(value, \"border\", \"bo\", function (border) {\n if (isPlainObject_root_isPlainObject_default()(border)) {\n border = assign_root_assign_default()({}, {\n color: \"black\",\n width: 2\n }, border);\n return \"\".concat(border.width, \"px_solid_\").concat(parameters_Param.norm_color(border.color));\n } else {\n return border;\n }\n });\n }\n }, {\n key: \"color\",\n value: function color(value) {\n return this.param(value, \"color\", \"co\", parameters_Param.norm_color);\n }\n }, {\n key: \"colorSpace\",\n value: function colorSpace(value) {\n return this.param(value, \"color_space\", \"cs\");\n }\n }, {\n key: \"crop\",\n value: function crop(value) {\n return this.param(value, \"crop\", \"c\");\n }\n }, {\n key: \"customFunction\",\n value: function customFunction(value) {\n return this.param(value, \"custom_function\", \"fn\", function () {\n return processCustomFunction(value);\n });\n }\n }, {\n key: \"customPreFunction\",\n value: function customPreFunction(value) {\n if (this.get('custom_function')) {\n return;\n }\n\n return this.rawParam(value, \"custom_function\", \"\", function () {\n value = processCustomFunction(value);\n return value ? \"fn_pre:\".concat(value) : value;\n });\n }\n }, {\n key: \"defaultImage\",\n value: function defaultImage(value) {\n return this.param(value, \"default_image\", \"d\");\n }\n }, {\n key: \"delay\",\n value: function delay(value) {\n return this.param(value, \"delay\", \"dl\");\n }\n }, {\n key: \"density\",\n value: function density(value) {\n return this.param(value, \"density\", \"dn\");\n }\n }, {\n key: \"duration\",\n value: function duration(value) {\n return this.rangeParam(value, \"duration\", \"du\");\n }\n }, {\n key: \"dpr\",\n value: function dpr(value) {\n return this.param(value, \"dpr\", \"dpr\", function (dpr) {\n dpr = dpr.toString();\n\n if (dpr != null ? dpr.match(/^\\d+$/) : void 0) {\n return dpr + \".0\";\n } else {\n return expression.normalize(dpr);\n }\n });\n }\n }, {\n key: \"effect\",\n value: function effect(value) {\n return this.arrayParam(value, \"effect\", \"e\", \":\", expression.normalize);\n }\n }, {\n key: \"else\",\n value: function _else() {\n return this[\"if\"]('else');\n }\n }, {\n key: \"endIf\",\n value: function endIf() {\n return this[\"if\"]('end');\n }\n }, {\n key: \"endOffset\",\n value: function endOffset(value) {\n return this.rangeParam(value, \"end_offset\", \"eo\");\n }\n }, {\n key: \"fallbackContent\",\n value: function fallbackContent(value) {\n return this.param(value, \"fallback_content\");\n }\n }, {\n key: \"fetchFormat\",\n value: function fetchFormat(value) {\n return this.param(value, \"fetch_format\", \"f\");\n }\n }, {\n key: \"format\",\n value: function format(value) {\n return this.param(value, \"format\");\n }\n }, {\n key: \"flags\",\n value: function flags(value) {\n return this.arrayParam(value, \"flags\", \"fl\", \".\");\n }\n }, {\n key: \"gravity\",\n value: function gravity(value) {\n return this.param(value, \"gravity\", \"g\");\n }\n }, {\n key: \"fps\",\n value: function fps(value) {\n return this.param(value, \"fps\", \"fps\", function (fps) {\n if (isString_root_isString_default()(fps)) {\n return fps;\n } else if (isArray_root_isArray_default()(fps)) {\n return fps.join(\"-\");\n } else {\n return fps;\n }\n });\n }\n }, {\n key: \"height\",\n value: function height(value) {\n var _this3 = this;\n\n return this.param(value, \"height\", \"h\", function () {\n if (_this3.getValue(\"crop\") || _this3.getValue(\"overlay\") || _this3.getValue(\"underlay\")) {\n return expression.normalize(value);\n } else {\n return null;\n }\n });\n }\n }, {\n key: \"htmlHeight\",\n value: function htmlHeight(value) {\n return this.param(value, \"html_height\");\n }\n }, {\n key: \"htmlWidth\",\n value: function htmlWidth(value) {\n return this.param(value, \"html_width\");\n }\n }, {\n key: \"if\",\n value: function _if() {\n var value = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : \"\";\n var i, ifVal, j, ref, trIf, trRest;\n\n switch (value) {\n case \"else\":\n this.chain();\n return this.param(value, \"if\", \"if\");\n\n case \"end\":\n this.chain();\n\n for (i = j = ref = this.chained.length - 1; j >= 0; i = j += -1) {\n ifVal = this.chained[i].getValue(\"if\");\n\n if (ifVal === \"end\") {\n break;\n } else if (ifVal != null) {\n trIf = Transformation[\"new\"]()[\"if\"](ifVal);\n this.chained[i].remove(\"if\");\n trRest = this.chained[i];\n this.chained[i] = Transformation[\"new\"]().transformation([trIf, trRest]);\n\n if (ifVal !== \"else\") {\n break;\n }\n }\n }\n\n return this.param(value, \"if\", \"if\");\n\n case \"\":\n return condition[\"new\"]().setParent(this);\n\n default:\n return this.param(value, \"if\", \"if\", function (value) {\n return condition[\"new\"](value).toString();\n });\n }\n }\n }, {\n key: \"keyframeInterval\",\n value: function keyframeInterval(value) {\n return this.param(value, \"keyframe_interval\", \"ki\");\n }\n }, {\n key: \"ocr\",\n value: function ocr(value) {\n return this.param(value, \"ocr\", \"ocr\");\n }\n }, {\n key: \"offset\",\n value: function offset(value) {\n var end_o, start_o;\n\n var _ref2 = isFunction_root_isFunction_default()(value != null ? value.split : void 0) ? value.split('..') : isArray_root_isArray_default()(value) ? value : [null, null];\n\n var _ref3 = transformation_slicedToArray(_ref2, 2);\n\n start_o = _ref3[0];\n end_o = _ref3[1];\n\n if (start_o != null) {\n this.startOffset(start_o);\n }\n\n if (end_o != null) {\n return this.endOffset(end_o);\n }\n }\n }, {\n key: \"opacity\",\n value: function opacity(value) {\n return this.param(value, \"opacity\", \"o\", expression.normalize);\n }\n }, {\n key: \"overlay\",\n value: function overlay(value) {\n return this.layerParam(value, \"overlay\", \"l\");\n }\n }, {\n key: \"page\",\n value: function page(value) {\n return this.param(value, \"page\", \"pg\");\n }\n }, {\n key: \"poster\",\n value: function poster(value) {\n return this.param(value, \"poster\");\n }\n }, {\n key: \"prefix\",\n value: function prefix(value) {\n return this.param(value, \"prefix\", \"p\");\n }\n }, {\n key: \"quality\",\n value: function quality(value) {\n return this.param(value, \"quality\", \"q\", expression.normalize);\n }\n }, {\n key: \"radius\",\n value: function radius(value) {\n return this.arrayParam(value, \"radius\", \"r\", \":\", expression.normalize);\n }\n }, {\n key: \"rawTransformation\",\n value: function rawTransformation(value) {\n return this.rawParam(value, \"raw_transformation\");\n }\n }, {\n key: \"size\",\n value: function size(value) {\n var height, width;\n\n if (isFunction_root_isFunction_default()(value != null ? value.split : void 0)) {\n var _value$split = value.split('x');\n\n var _value$split2 = transformation_slicedToArray(_value$split, 2);\n\n width = _value$split2[0];\n height = _value$split2[1];\n this.width(width);\n return this.height(height);\n }\n }\n }, {\n key: \"sourceTypes\",\n value: function sourceTypes(value) {\n return this.param(value, \"source_types\");\n }\n }, {\n key: \"sourceTransformation\",\n value: function sourceTransformation(value) {\n return this.param(value, \"source_transformation\");\n }\n }, {\n key: \"startOffset\",\n value: function startOffset(value) {\n return this.rangeParam(value, \"start_offset\", \"so\");\n }\n }, {\n key: \"streamingProfile\",\n value: function streamingProfile(value) {\n return this.param(value, \"streaming_profile\", \"sp\");\n }\n }, {\n key: \"transformation\",\n value: function transformation(value) {\n return this.transformationParam(value, \"transformation\", \"t\");\n }\n }, {\n key: \"underlay\",\n value: function underlay(value) {\n return this.layerParam(value, \"underlay\", \"u\");\n }\n }, {\n key: \"variable\",\n value: function variable(name, value) {\n return this.param(value, name, name);\n }\n }, {\n key: \"variables\",\n value: function variables(values) {\n return this.arrayParam(values, \"variables\");\n }\n }, {\n key: \"videoCodec\",\n value: function videoCodec(value) {\n return this.param(value, \"video_codec\", \"vc\", parameters_Param.process_video_params);\n }\n }, {\n key: \"videoSampling\",\n value: function videoSampling(value) {\n return this.param(value, \"video_sampling\", \"vs\");\n }\n }, {\n key: \"width\",\n value: function width(value) {\n var _this4 = this;\n\n return this.param(value, \"width\", \"w\", function () {\n if (_this4.getValue(\"crop\") || _this4.getValue(\"overlay\") || _this4.getValue(\"underlay\")) {\n return expression.normalize(value);\n } else {\n return null;\n }\n });\n }\n }, {\n key: \"x\",\n value: function x(value) {\n return this.param(value, \"x\", \"x\", expression.normalize);\n }\n }, {\n key: \"y\",\n value: function y(value) {\n return this.param(value, \"y\", \"y\", expression.normalize);\n }\n }, {\n key: \"zoom\",\n value: function zoom(value) {\n return this.param(value, \"zoom\", \"z\", expression.normalize);\n }\n }], [{\n key: \"new\",\n value: function _new(options) {\n return new Transformation(options);\n }\n }]);\n\n return Transformation;\n}(transformation_TransformationBase);\n/**\n * Transformation Class methods.\n * This is a list of the parameters defined in Transformation.\n * Values are camelCased.\n */\n\n\ntransformation_Transformation.methods = [\"angle\", \"audioCodec\", \"audioFrequency\", \"aspectRatio\", \"background\", \"bitRate\", \"border\", \"color\", \"colorSpace\", \"crop\", \"customFunction\", \"customPreFunction\", \"defaultImage\", \"delay\", \"density\", \"duration\", \"dpr\", \"effect\", \"else\", \"endIf\", \"endOffset\", \"fallbackContent\", \"fetchFormat\", \"format\", \"flags\", \"gravity\", \"fps\", \"height\", \"htmlHeight\", \"htmlWidth\", \"if\", \"keyframeInterval\", \"ocr\", \"offset\", \"opacity\", \"overlay\", \"page\", \"poster\", \"prefix\", \"quality\", \"radius\", \"rawTransformation\", \"size\", \"sourceTypes\", \"sourceTransformation\", \"startOffset\", \"streamingProfile\", \"transformation\", \"underlay\", \"variable\", \"variables\", \"videoCodec\", \"videoSampling\", \"width\", \"x\", \"y\", \"zoom\"];\n/**\n * Parameters that are filtered out before passing the options to an HTML tag.\n *\n * The list of parameters is a combination of `Transformation::methods` and `Configuration::CONFIG_PARAMS`\n */\n\ntransformation_Transformation.PARAM_NAMES = transformation_Transformation.methods.map(snakeCase).concat(src_configuration.CONFIG_PARAMS);\n/* harmony default export */ var src_transformation = (transformation_Transformation);\n// CONCATENATED MODULE: ./src/tags/htmltag.js\nfunction htmltag_classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nfunction htmltag_defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction htmltag_createClass(Constructor, protoProps, staticProps) { if (protoProps) htmltag_defineProperties(Constructor.prototype, protoProps); if (staticProps) htmltag_defineProperties(Constructor, staticProps); return Constructor; }\n\n/**\n * Generic HTML tag\n * Depends on 'transformation', 'util'\n */\n\n\n/**\n * Represents an HTML (DOM) tag\n * @constructor HtmlTag\n * @param {string} name - the name of the tag\n * @param {string} [publicId]\n * @param {Object} options\n * @example tag = new HtmlTag( 'div', { 'width': 10})\n */\n\nvar htmltag_HtmlTag = /*#__PURE__*/function () {\n function HtmlTag(name, publicId, options) {\n htmltag_classCallCheck(this, HtmlTag);\n\n var transformation;\n this.name = name;\n this.publicId = publicId;\n\n if (options == null) {\n if (isPlainObject_root_isPlainObject_default()(publicId)) {\n options = publicId;\n this.publicId = void 0;\n } else {\n options = {};\n }\n }\n\n transformation = new src_transformation(options);\n transformation.setParent(this);\n\n this.transformation = function () {\n return transformation;\n };\n }\n /**\n * Convenience constructor\n * Creates a new instance of an HTML (DOM) tag\n * @function HtmlTag.new\n * @param {string} name - the name of the tag\n * @param {string} [publicId]\n * @param {Object} options\n * @return {HtmlTag}\n * @example tag = HtmlTag.new( 'div', { 'width': 10})\n */\n\n\n htmltag_createClass(HtmlTag, [{\n key: \"htmlAttrs\",\n value:\n /**\n * combine key and value from the `attr` to generate an HTML tag attributes string.\n * `Transformation::toHtmlTagOptions` is used to filter out transformation and configuration keys.\n * @protected\n * @param {Object} attrs\n * @return {string} the attributes in the format `'key1=\"value1\" key2=\"value2\"'`\n * @ignore\n */\n function htmlAttrs(attrs) {\n var key, pairs, value;\n return pairs = function () {\n var results;\n results = [];\n\n for (key in attrs) {\n value = escapeQuotes(attrs[key]);\n\n if (value) {\n results.push(htmltag_toAttribute(key, value));\n }\n }\n\n return results;\n }().sort().join(' ');\n }\n /**\n * Get all options related to this tag.\n * @function HtmlTag#getOptions\n * @returns {Object} the options\n *\n */\n\n }, {\n key: \"getOptions\",\n value: function getOptions() {\n return this.transformation().toOptions();\n }\n /**\n * Get the value of option `name`\n * @function HtmlTag#getOption\n * @param {string} name - the name of the option\n * @returns {*} Returns the value of the option\n *\n */\n\n }, {\n key: \"getOption\",\n value: function getOption(name) {\n return this.transformation().getValue(name);\n }\n /**\n * Get the attributes of the tag.\n * @function HtmlTag#attributes\n * @returns {Object} attributes\n */\n\n }, {\n key: \"attributes\",\n value: function attributes() {\n // The attributes are be computed from the options every time this method is invoked.\n var htmlAttributes = this.transformation().toHtmlAttributes();\n Object.keys(htmlAttributes).forEach(function (key) {\n if (isPlainObject_root_isPlainObject_default()(htmlAttributes[key])) {\n delete htmlAttributes[key];\n }\n });\n\n if (htmlAttributes.attributes) {\n // Currently HTML attributes are defined both at the top level and under 'attributes'\n merge_root_merge_default()(htmlAttributes, htmlAttributes.attributes);\n delete htmlAttributes.attributes;\n }\n\n return htmlAttributes;\n }\n /**\n * Set a tag attribute named `name` to `value`\n * @function HtmlTag#setAttr\n * @param {string} name - the name of the attribute\n * @param {string} value - the value of the attribute\n */\n\n }, {\n key: \"setAttr\",\n value: function setAttr(name, value) {\n this.transformation().set(\"html_\".concat(name), value);\n return this;\n }\n /**\n * Get the value of the tag attribute `name`\n * @function HtmlTag#getAttr\n * @param {string} name - the name of the attribute\n * @returns {*}\n */\n\n }, {\n key: \"getAttr\",\n value: function getAttr(name) {\n return this.attributes()[\"html_\".concat(name)] || this.attributes()[name];\n }\n /**\n * Remove the tag attributed named `name`\n * @function HtmlTag#removeAttr\n * @param {string} name - the name of the attribute\n * @returns {*}\n */\n\n }, {\n key: \"removeAttr\",\n value: function removeAttr(name) {\n var ref;\n return (ref = this.transformation().remove(\"html_\".concat(name))) != null ? ref : this.transformation().remove(name);\n }\n /**\n * @function HtmlTag#content\n * @protected\n * @ignore\n */\n\n }, {\n key: \"content\",\n value: function content() {\n return \"\";\n }\n /**\n * @function HtmlTag#openTag\n * @protected\n * @ignore\n */\n\n }, {\n key: \"openTag\",\n value: function openTag() {\n var tag = \"<\" + this.name;\n var htmlAttrs = this.htmlAttrs(this.attributes());\n\n if (htmlAttrs && htmlAttrs.length > 0) {\n tag += \" \" + htmlAttrs;\n }\n\n return tag + \">\";\n }\n /**\n * @function HtmlTag#closeTag\n * @protected\n * @ignore\n */\n\n }, {\n key: \"closeTag\",\n value: function closeTag() {\n return \"\");\n }\n /**\n * Generates an HTML representation of the tag.\n * @function HtmlTag#toHtml\n * @returns {string} Returns HTML in string format\n */\n\n }, {\n key: \"toHtml\",\n value: function toHtml() {\n return this.openTag() + this.content() + this.closeTag();\n }\n /**\n * Creates a DOM object representing the tag.\n * @function HtmlTag#toDOM\n * @returns {Element}\n */\n\n }, {\n key: \"toDOM\",\n value: function toDOM() {\n var element, name, ref, value;\n\n if (!isFunction_root_isFunction_default()(typeof document !== \"undefined\" && document !== null ? document.createElement : void 0)) {\n throw \"Can't create DOM if document is not present!\";\n }\n\n element = document.createElement(this.name);\n ref = this.attributes();\n\n for (name in ref) {\n value = ref[name];\n element.setAttribute(name, value);\n }\n\n return element;\n }\n }], [{\n key: \"new\",\n value: function _new(name, publicId, options) {\n return new this(name, publicId, options);\n }\n }, {\n key: \"isResponsive\",\n value: function isResponsive(tag, responsiveClass) {\n var dataSrc;\n dataSrc = lodash_getData(tag, 'src-cache') || lodash_getData(tag, 'src');\n return lodash_hasClass(tag, responsiveClass) && /\\bw_auto\\b/.exec(dataSrc);\n }\n }]);\n\n return HtmlTag;\n}();\n\n;\n/**\n * Represent the given key and value as an HTML attribute.\n * @function toAttribute\n * @protected\n * @param {string} key - attribute name\n * @param {*|boolean} value - the value of the attribute. If the value is boolean `true`, return the key only.\n * @returns {string} the attribute\n *\n */\n\nfunction htmltag_toAttribute(key, value) {\n if (!value) {\n return void 0;\n } else if (value === true) {\n return key;\n } else {\n return \"\".concat(key, \"=\\\"\").concat(value, \"\\\"\");\n }\n}\n/**\n * If given value is a string, replaces quotes with character entities (", ')\n * @param value - value to change\n * @returns {*} changed value\n */\n\n\nfunction escapeQuotes(value) {\n return isString_root_isString_default()(value) ? value.replace('\"', '"').replace(\"'\", ''') : value;\n}\n\n/* harmony default export */ var htmltag = (htmltag_HtmlTag);\n// CONCATENATED MODULE: ./src/url.js\nvar _excluded = [\"placeholder\", \"accessibility\"];\n\nfunction _objectWithoutProperties(source, excluded) { if (source == null) return {}; var target = _objectWithoutPropertiesLoose(source, excluded); var key, i; if (Object.getOwnPropertySymbols) { var sourceSymbolKeys = Object.getOwnPropertySymbols(source); for (i = 0; i < sourceSymbolKeys.length; i++) { key = sourceSymbolKeys[i]; if (excluded.indexOf(key) >= 0) continue; if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue; target[key] = source[key]; } } return target; }\n\nfunction _objectWithoutPropertiesLoose(source, excluded) { if (source == null) return {}; var target = {}; var sourceKeys = Object.keys(source); var key, i; for (i = 0; i < sourceKeys.length; i++) { key = sourceKeys[i]; if (excluded.indexOf(key) >= 0) continue; target[key] = source[key]; } return target; }\n\n\n\n\n\n\n\n/**\n * Adds protocol, host, pathname prefixes to given string\n * @param str\n * @returns {string}\n */\n\nfunction makeUrl(str) {\n var prefix = document.location.protocol + '//' + document.location.host;\n\n if (str[0] === '?') {\n prefix += document.location.pathname;\n } else if (str[0] !== '/') {\n prefix += document.location.pathname.replace(/\\/[^\\/]*$/, '/');\n }\n\n return prefix + str;\n}\n/**\n * Check is given string is a url\n * @param str\n * @returns {boolean}\n */\n\n\nfunction isUrl(str) {\n return str ? !!str.match(/^https?:\\//) : false;\n} // Produce a number between 1 and 5 to be used for cdn sub domains designation\n\n\nfunction cdnSubdomainNumber(publicId) {\n return src_crc32(publicId) % 5 + 1;\n}\n/**\n * Removes signature from options and returns the signature\n * Makes sure signature is empty or of this format: s--signature--\n * @param {object} options\n * @returns {string} the formatted signature\n */\n\n\nfunction handleSignature(options) {\n var signature = options.signature;\n var isFormatted = !signature || signature.indexOf('s--') === 0 && signature.substr(-2) === '--';\n delete options.signature;\n return isFormatted ? signature : \"s--\".concat(signature, \"--\");\n}\n/**\n * Create the URL prefix for Cloudinary resources.\n * @param {string} publicId the resource public ID\n * @param {object} options additional options\n * @param {string} options.cloud_name - the cloud name.\n * @param {boolean} [options.cdn_subdomain=false] - Whether to automatically build URLs with\n * multiple CDN sub-domains.\n * @param {string} [options.private_cdn] - Boolean (default: false). Should be set to true for Advanced plan's users\n * that have a private CDN distribution.\n * @param {string} [options.protocol=\"http://\"] - the URI protocol to use. If options.secure is true,\n * the value is overridden to \"https://\"\n * @param {string} [options.secure_distribution] - The domain name of the CDN distribution to use for building HTTPS URLs.\n * Relevant only for Advanced plan's users that have a private CDN distribution.\n * @param {string} [options.cname] - Custom domain name to use for building HTTP URLs.\n * Relevant only for Advanced plan's users that have a private CDN distribution and a custom CNAME.\n * @param {boolean} [options.secure_cdn_subdomain=true] - When options.secure is true and this parameter is false,\n * the subdomain is set to \"res\".\n * @param {boolean} [options.secure=false] - Force HTTPS URLs of images even if embedded in non-secure HTTP pages.\n * When this value is true, options.secure_distribution will be used as host if provided, and options.protocol is set\n * to \"https://\".\n * @returns {string} the URL prefix for the resource.\n * @private\n */\n\n\nfunction handlePrefix(publicId, options) {\n if (options.cloud_name && options.cloud_name[0] === '/') {\n return '/res' + options.cloud_name;\n } // defaults\n\n\n var protocol = \"http://\";\n var cdnPart = \"\";\n var subdomain = \"res\";\n var host = \".cloudinary.com\";\n var path = \"/\" + options.cloud_name; // modifications\n\n if (options.protocol) {\n protocol = options.protocol + '//';\n }\n\n if (options.private_cdn) {\n cdnPart = options.cloud_name + \"-\";\n path = \"\";\n }\n\n if (options.cdn_subdomain) {\n subdomain = \"res-\" + cdnSubdomainNumber(publicId);\n }\n\n if (options.secure) {\n protocol = \"https://\";\n\n if (options.secure_cdn_subdomain === false) {\n subdomain = \"res\";\n }\n\n if (options.secure_distribution != null && options.secure_distribution !== OLD_AKAMAI_SHARED_CDN && options.secure_distribution !== SHARED_CDN) {\n cdnPart = \"\";\n subdomain = \"\";\n host = options.secure_distribution;\n }\n } else if (options.cname) {\n protocol = \"http://\";\n cdnPart = \"\";\n subdomain = options.cdn_subdomain ? 'a' + (src_crc32(publicId) % 5 + 1) + '.' : '';\n host = options.cname;\n }\n\n return [protocol, cdnPart, subdomain, host, path].join(\"\");\n}\n/**\n * Return the resource type and action type based on the given configuration\n * @function Cloudinary#handleResourceType\n * @param {Object|string} resource_type\n * @param {string} [type='upload']\n * @param {string} [url_suffix]\n * @param {boolean} [use_root_path]\n * @param {boolean} [shorten]\n * @returns {string} resource_type/type\n * @ignore\n */\n\n\nfunction handleResourceType(_ref) {\n var _ref$resource_type = _ref.resource_type,\n resource_type = _ref$resource_type === void 0 ? \"image\" : _ref$resource_type,\n _ref$type = _ref.type,\n type = _ref$type === void 0 ? \"upload\" : _ref$type,\n url_suffix = _ref.url_suffix,\n use_root_path = _ref.use_root_path,\n shorten = _ref.shorten;\n var options,\n resourceType = resource_type;\n\n if (isPlainObject_root_isPlainObject_default()(resourceType)) {\n options = resourceType;\n resourceType = options.resource_type;\n type = options.type;\n shorten = options.shorten;\n }\n\n if (type == null) {\n type = 'upload';\n }\n\n if (url_suffix != null) {\n resourceType = SEO_TYPES[\"\".concat(resourceType, \"/\").concat(type)];\n type = null;\n\n if (resourceType == null) {\n throw new Error(\"URL Suffix only supported for \".concat(Object.keys(SEO_TYPES).join(', ')));\n }\n }\n\n if (use_root_path) {\n if (resourceType === 'image' && type === 'upload' || resourceType === \"images\") {\n resourceType = null;\n type = null;\n } else {\n throw new Error(\"Root path only supported for image/upload\");\n }\n }\n\n if (shorten && resourceType === 'image' && type === 'upload') {\n resourceType = 'iu';\n type = null;\n }\n\n return [resourceType, type].join(\"/\");\n}\n/**\n * Encode publicId\n * @param publicId\n * @returns {string} encoded publicId\n */\n\n\nfunction encodePublicId(publicId) {\n return encodeURIComponent(publicId).replace(/%3A/g, ':').replace(/%2F/g, '/');\n}\n/**\n * Encode and format publicId\n * @param publicId\n * @param options\n * @returns {string} publicId\n */\n\n\nfunction formatPublicId(publicId, options) {\n if (isUrl(publicId)) {\n publicId = encodePublicId(publicId);\n } else {\n try {\n // Make sure publicId is URI encoded.\n publicId = decodeURIComponent(publicId);\n } catch (error) {}\n\n publicId = encodePublicId(publicId);\n\n if (options.url_suffix) {\n publicId = publicId + '/' + options.url_suffix;\n }\n\n if (options.format) {\n if (!options.trust_public_id) {\n publicId = publicId.replace(/\\.(jpg|png|gif|webp)$/, '');\n }\n\n publicId = publicId + '.' + options.format;\n }\n }\n\n return publicId;\n}\n/**\n * Get any error with url options\n * @param options\n * @returns {string} if error, otherwise return undefined\n */\n\n\nfunction validate(options) {\n var cloud_name = options.cloud_name,\n url_suffix = options.url_suffix;\n\n if (!cloud_name) {\n return 'Unknown cloud_name';\n }\n\n if (url_suffix && url_suffix.match(/[\\.\\/]/)) {\n return 'url_suffix should not include . or /';\n }\n}\n/**\n * Get version part of the url\n * @param publicId\n * @param options\n * @returns {string}\n */\n\n\nfunction handleVersion(publicId, options) {\n // force_version param means to make sure there is a version in the url (Default is true)\n var isForceVersion = options.force_version || typeof options.force_version === 'undefined'; // Is version included in publicId or in options, or publicId is a url (doesn't need version)\n\n var isVersionExist = publicId.indexOf('/') < 0 || publicId.match(/^v[0-9]+/) || isUrl(publicId) || options.version;\n\n if (isForceVersion && !isVersionExist) {\n options.version = 1;\n }\n\n return options.version ? \"v\".concat(options.version) : '';\n}\n/**\n * Get final transformation component for url string\n * @param options\n * @returns {string}\n */\n\n\nfunction handleTransformation(options) {\n var _ref2 = options || {},\n placeholder = _ref2.placeholder,\n accessibility = _ref2.accessibility,\n otherOptions = _objectWithoutProperties(_ref2, _excluded);\n\n var result = new src_transformation(otherOptions); // Append accessibility transformations\n\n if (accessibility && ACCESSIBILITY_MODES[accessibility]) {\n result.chain().effect(ACCESSIBILITY_MODES[accessibility]);\n } // Append placeholder transformations\n\n\n if (placeholder) {\n if (placeholder === \"predominant-color\" && result.getValue('width') && result.getValue('height')) {\n placeholder += '-pixel';\n }\n\n var placeholderTransformations = PLACEHOLDER_IMAGE_MODES[placeholder] || PLACEHOLDER_IMAGE_MODES.blur;\n placeholderTransformations.forEach(function (t) {\n return result.chain().transformation(t);\n });\n }\n\n return result.serialize();\n}\n/**\n * If type is 'fetch', update publicId to be a url\n * @param publicId\n * @param type\n * @returns {string}\n */\n\n\nfunction preparePublicId(publicId, _ref3) {\n var type = _ref3.type;\n return !isUrl(publicId) && type === 'fetch' ? makeUrl(publicId) : publicId;\n}\n/**\n * Generate url string\n * @param publicId\n * @param options\n * @returns {string} final url\n */\n\n\nfunction urlString(publicId, options) {\n if (isUrl(publicId) && (options.type === 'upload' || options.type === 'asset')) {\n return publicId;\n }\n\n var version = handleVersion(publicId, options);\n var transformationString = handleTransformation(options);\n var prefix = handlePrefix(publicId, options);\n var signature = handleSignature(options);\n var resourceType = handleResourceType(options);\n publicId = formatPublicId(publicId, options);\n return compact_root_compact_default()([prefix, resourceType, signature, transformationString, version, publicId]).join('/').replace(/([^:])\\/+/g, '$1/') // replace '///' with '//'\n .replace(' ', '%20');\n}\n/**\n * Merge options and config with defaults\n * update options fetch_format according to 'type' param\n * @param options\n * @param config\n * @returns {*} updated options\n */\n\n\nfunction prepareOptions(options, config) {\n if (options instanceof src_transformation) {\n options = options.toOptions();\n }\n\n options = defaults({}, options, config, DEFAULT_IMAGE_PARAMS);\n\n if (options.type === 'fetch') {\n options.fetch_format = options.fetch_format || options.format;\n }\n\n return options;\n}\n/**\n * Generates a URL for any asset in your Media library.\n * @function url\n * @ignore\n * @param {string} publicId - The public ID of the media asset.\n * @param {Object} [options={}] - The {@link Transformation} parameters to include in the URL.\n * @param {object} [config={}] - URL configuration parameters\n * @param {type} [options.type='upload'] - The asset's storage type.\n * For details on all fetch types, see\n * Fetch types .\n * @param {Object} [options.resource_type='image'] - The type of asset. Possible values:Signatures .\n * @return {string} The media asset URL.\n * @see \n * Available image transformations \n * @see \n * Available video transformations \n */\n\n\nfunction url_url(publicId) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var config = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n if (!publicId) {\n return publicId;\n }\n\n options = prepareOptions(options, config);\n publicId = preparePublicId(publicId, options);\n var error = validate(options);\n\n if (error) {\n throw error;\n }\n\n var resultUrl = urlString(publicId, options);\n\n if (options.urlAnalytics) {\n var analyticsOptions = getAnalyticsOptions(options);\n var sdkAnalyticsSignature = getSDKAnalyticsSignature(analyticsOptions); // url might already have a '?' query param\n\n var appender = '?';\n\n if (resultUrl.indexOf('?') >= 0) {\n appender = '&';\n }\n\n resultUrl = \"\".concat(resultUrl).concat(appender, \"_a=\").concat(sdkAnalyticsSignature);\n }\n\n return resultUrl;\n}\n;\n// CONCATENATED MODULE: ./src/util/generateBreakpoints.js\nfunction generateBreakpoints_slicedToArray(arr, i) { return generateBreakpoints_arrayWithHoles(arr) || generateBreakpoints_iterableToArrayLimit(arr, i) || generateBreakpoints_unsupportedIterableToArray(arr, i) || generateBreakpoints_nonIterableRest(); }\n\nfunction generateBreakpoints_nonIterableRest() { throw new TypeError(\"Invalid attempt to destructure non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.\"); }\n\nfunction generateBreakpoints_unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === \"string\") return generateBreakpoints_arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === \"Object\" && o.constructor) n = o.constructor.name; if (n === \"Map\" || n === \"Set\") return Array.from(o); if (n === \"Arguments\" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return generateBreakpoints_arrayLikeToArray(o, minLen); }\n\nfunction generateBreakpoints_arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }\n\nfunction generateBreakpoints_iterableToArrayLimit(arr, i) { var _i = arr == null ? null : typeof Symbol !== \"undefined\" && arr[Symbol.iterator] || arr[\"@@iterator\"]; if (_i == null) return; var _arr = []; var _n = true; var _d = false; var _s, _e; try { for (_i = _i.call(arr); !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i[\"return\"] != null) _i[\"return\"](); } finally { if (_d) throw _e; } } return _arr; }\n\nfunction generateBreakpoints_arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }\n\n/**\n * Helper function. Gets or populates srcset breakpoints using provided parameters\n * Either the breakpoints or min_width, max_width, max_images must be provided.\n *\n * @private\n * @param {srcset} srcset Options with either `breakpoints` or `min_width`, `max_width`, and `max_images`\n *\n * @return {number[]} Array of breakpoints\n *\n */\nfunction generateBreakpoints(srcset) {\n var breakpoints = srcset.breakpoints || [];\n\n if (breakpoints.length) {\n return breakpoints;\n }\n\n var _map = [srcset.min_width, srcset.max_width, srcset.max_images].map(Number),\n _map2 = generateBreakpoints_slicedToArray(_map, 3),\n min_width = _map2[0],\n max_width = _map2[1],\n max_images = _map2[2];\n\n if ([min_width, max_width, max_images].some(isNaN)) {\n throw 'Either (min_width, max_width, max_images) ' + 'or breakpoints must be provided to the image srcset attribute';\n }\n\n if (min_width > max_width) {\n throw 'min_width must be less than max_width';\n }\n\n if (max_images <= 0) {\n throw 'max_images must be a positive integer';\n } else if (max_images === 1) {\n min_width = max_width;\n }\n\n var stepSize = Math.ceil((max_width - min_width) / Math.max(max_images - 1, 1));\n\n for (var current = min_width; current < max_width; current += stepSize) {\n breakpoints.push(current);\n }\n\n breakpoints.push(max_width);\n return breakpoints;\n}\n// CONCATENATED MODULE: ./src/util/srcsetUtils.js\n\nvar srcsetUtils_isEmpty = isEmpty;\n\n\n\n/**\n * Options used to generate the srcset attribute.\n * @typedef {object} srcset\n * @property {(number[]|string[])} [breakpoints] An array of breakpoints.\n * @property {number} [min_width] Minimal width of the srcset images.\n * @property {number} [max_width] Maximal width of the srcset images.\n * @property {number} [max_images] Number of srcset images to generate.\n * @property {object|string} [transformation] The transformation to use in the srcset urls.\n * @property {boolean} [sizes] Whether to calculate and add the sizes attribute.\n */\n\n/**\n * Helper function. Generates a single srcset item url\n *\n * @private\n * @param {string} public_id Public ID of the resource.\n * @param {number} width Width in pixels of the srcset item.\n * @param {object|string} transformation\n * @param {object} options Additional options.\n *\n * @return {string} Resulting URL of the item\n */\n\nfunction scaledUrl(public_id, width, transformation) {\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n var configParams = extractUrlParams(options);\n transformation = transformation || options;\n configParams.raw_transformation = new src_transformation([merge_root_merge_default.a({}, transformation), {\n crop: 'scale',\n width: width\n }]).toString();\n return url_url(public_id, configParams);\n}\n/**\n * If cache is enabled, get the breakpoints from the cache. If the values were not found in the cache,\n * or cache is not enabled, generate the values.\n * @param {srcset} srcset The srcset configuration parameters\n * @param {string} public_id\n * @param {object} options\n * @return {*|Array}\n */\n\nfunction getOrGenerateBreakpoints(public_id) {\n var srcset = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n return generateBreakpoints(srcset);\n}\n/**\n * Helper function. Generates srcset attribute value of the HTML img tag\n * @private\n *\n * @param {string} public_id Public ID of the resource\n * @param {number[]} breakpoints An array of breakpoints (in pixels)\n * @param {object} transformation The transformation\n * @param {object} options Includes html tag options, transformation options\n * @return {string} Resulting srcset attribute value\n */\n\nfunction generateSrcsetAttribute(public_id, breakpoints, transformation, options) {\n options = cloneDeep_root_cloneDeep_default.a(options);\n patchFetchFormat(options);\n return breakpoints.map(function (width) {\n return \"\".concat(scaledUrl(public_id, width, transformation, options), \" \").concat(width, \"w\");\n }).join(', ');\n}\n/**\n * Helper function. Generates sizes attribute value of the HTML img tag\n * @private\n * @param {number[]} breakpoints An array of breakpoints.\n * @return {string} Resulting sizes attribute value\n */\n\nfunction generateSizesAttribute(breakpoints) {\n if (breakpoints == null) {\n return '';\n }\n\n return breakpoints.map(function (width) {\n return \"(max-width: \".concat(width, \"px) \").concat(width, \"px\");\n }).join(', ');\n}\n/**\n * Helper function. Generates srcset and sizes attributes of the image tag\n *\n * Generated attributes are added to attributes argument\n *\n * @private\n * @param {string} publicId The public ID of the resource\n * @param {object} attributes Existing HTML attributes.\n * @param {srcset} srcsetData\n * @param {object} options Additional options.\n *\n * @return array The responsive attributes\n */\n\nfunction generateImageResponsiveAttributes(publicId) {\n var attributes = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var srcsetData = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n // Create both srcset and sizes here to avoid fetching breakpoints twice\n var responsiveAttributes = {};\n\n if (srcsetUtils_isEmpty(srcsetData)) {\n return responsiveAttributes;\n }\n\n var generateSizes = !attributes.sizes && srcsetData.sizes === true;\n var generateSrcset = !attributes.srcset;\n\n if (generateSrcset || generateSizes) {\n var breakpoints = getOrGenerateBreakpoints(publicId, srcsetData, options);\n\n if (generateSrcset) {\n var transformation = srcsetData.transformation;\n var srcsetAttr = generateSrcsetAttribute(publicId, breakpoints, transformation, options);\n\n if (!srcsetUtils_isEmpty(srcsetAttr)) {\n responsiveAttributes.srcset = srcsetAttr;\n }\n }\n\n if (generateSizes) {\n var sizesAttr = generateSizesAttribute(breakpoints);\n\n if (!srcsetUtils_isEmpty(sizesAttr)) {\n responsiveAttributes.sizes = sizesAttr;\n }\n }\n }\n\n return responsiveAttributes;\n}\n/**\n * Generate a media query\n *\n * @private\n * @param {object} options configuration options\n * @param {number|string} options.min_width\n * @param {number|string} options.max_width\n * @return {string} a media query string\n */\n\nfunction generateMediaAttr(options) {\n var mediaQuery = [];\n\n if (options != null) {\n if (options.min_width != null) {\n mediaQuery.push(\"(min-width: \".concat(options.min_width, \"px)\"));\n }\n\n if (options.max_width != null) {\n mediaQuery.push(\"(max-width: \".concat(options.max_width, \"px)\"));\n }\n }\n\n return mediaQuery.join(' and ');\n}\nvar srcsetUrl = scaledUrl;\n// CONCATENATED MODULE: ./src/tags/imagetag.js\nfunction imagetag_typeof(obj) { \"@babel/helpers - typeof\"; if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { imagetag_typeof = function _typeof(obj) { return typeof obj; }; } else { imagetag_typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return imagetag_typeof(obj); }\n\nfunction imagetag_classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nfunction imagetag_defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction imagetag_createClass(Constructor, protoProps, staticProps) { if (protoProps) imagetag_defineProperties(Constructor.prototype, protoProps); if (staticProps) imagetag_defineProperties(Constructor, staticProps); return Constructor; }\n\nfunction imagetag_get(target, property, receiver) { if (typeof Reflect !== \"undefined\" && Reflect.get) { imagetag_get = Reflect.get; } else { imagetag_get = function _get(target, property, receiver) { var base = imagetag_superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return imagetag_get(target, property, receiver || target); }\n\nfunction imagetag_superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = imagetag_getPrototypeOf(object); if (object === null) break; } return object; }\n\nfunction imagetag_inherits(subClass, superClass) { if (typeof superClass !== \"function\" && superClass !== null) { throw new TypeError(\"Super expression must either be null or a function\"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) imagetag_setPrototypeOf(subClass, superClass); }\n\nfunction imagetag_setPrototypeOf(o, p) { imagetag_setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return imagetag_setPrototypeOf(o, p); }\n\nfunction imagetag_createSuper(Derived) { var hasNativeReflectConstruct = imagetag_isNativeReflectConstruct(); return function _createSuperInternal() { var Super = imagetag_getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = imagetag_getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return imagetag_possibleConstructorReturn(this, result); }; }\n\nfunction imagetag_possibleConstructorReturn(self, call) { if (call && (imagetag_typeof(call) === \"object\" || typeof call === \"function\")) { return call; } else if (call !== void 0) { throw new TypeError(\"Derived constructors may only return object or undefined\"); } return imagetag_assertThisInitialized(self); }\n\nfunction imagetag_assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return self; }\n\nfunction imagetag_isNativeReflectConstruct() { if (typeof Reflect === \"undefined\" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === \"function\") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }\n\nfunction imagetag_getPrototypeOf(o) { imagetag_getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return imagetag_getPrototypeOf(o); }\n\n/**\n * Image Tag\n * Depends on 'tags/htmltag', 'cloudinary'\n */\n\n\n\n\n/**\n * Creates an HTML (DOM) Image tag using Cloudinary as the source.\n * @constructor ImageTag\n * @extends HtmlTag\n * @param {string} [publicId]\n * @param {Object} [options]\n */\n\nvar imagetag_ImageTag = /*#__PURE__*/function (_HtmlTag) {\n imagetag_inherits(ImageTag, _HtmlTag);\n\n var _super = imagetag_createSuper(ImageTag);\n\n function ImageTag(publicId) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n imagetag_classCallCheck(this, ImageTag);\n\n return _super.call(this, \"img\", publicId, options);\n }\n /** @override */\n\n\n imagetag_createClass(ImageTag, [{\n key: \"closeTag\",\n value: function closeTag() {\n return \"\";\n }\n /** @override */\n\n }, {\n key: \"attributes\",\n value: function attributes() {\n var attr, options, srcAttribute;\n attr = imagetag_get(imagetag_getPrototypeOf(ImageTag.prototype), \"attributes\", this).call(this) || {};\n options = this.getOptions();\n var srcsetParam = this.getOption('srcset');\n var attributes = this.getOption('attributes') || {};\n var responsiveAttributes = {};\n\n if (isString_root_isString_default()(srcsetParam)) {\n responsiveAttributes.srcset = srcsetParam;\n } else {\n responsiveAttributes = generateImageResponsiveAttributes(this.publicId, attributes, srcsetParam, options);\n }\n\n if (!isEmpty(responsiveAttributes)) {\n delete options.width;\n delete options.height;\n }\n\n merge_root_merge_default()(attr, responsiveAttributes);\n srcAttribute = options.responsive && !options.client_hints ? 'data-src' : 'src';\n\n if (attr[srcAttribute] == null) {\n attr[srcAttribute] = url_url(this.publicId, this.getOptions());\n }\n\n return attr;\n }\n }]);\n\n return ImageTag;\n}(htmltag);\n\n;\n/* harmony default export */ var imagetag = (imagetag_ImageTag);\n// CONCATENATED MODULE: ./src/tags/sourcetag.js\nfunction sourcetag_typeof(obj) { \"@babel/helpers - typeof\"; if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { sourcetag_typeof = function _typeof(obj) { return typeof obj; }; } else { sourcetag_typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return sourcetag_typeof(obj); }\n\nfunction sourcetag_classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nfunction sourcetag_defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction sourcetag_createClass(Constructor, protoProps, staticProps) { if (protoProps) sourcetag_defineProperties(Constructor.prototype, protoProps); if (staticProps) sourcetag_defineProperties(Constructor, staticProps); return Constructor; }\n\nfunction sourcetag_get(target, property, receiver) { if (typeof Reflect !== \"undefined\" && Reflect.get) { sourcetag_get = Reflect.get; } else { sourcetag_get = function _get(target, property, receiver) { var base = sourcetag_superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return sourcetag_get(target, property, receiver || target); }\n\nfunction sourcetag_superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = sourcetag_getPrototypeOf(object); if (object === null) break; } return object; }\n\nfunction sourcetag_inherits(subClass, superClass) { if (typeof superClass !== \"function\" && superClass !== null) { throw new TypeError(\"Super expression must either be null or a function\"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) sourcetag_setPrototypeOf(subClass, superClass); }\n\nfunction sourcetag_setPrototypeOf(o, p) { sourcetag_setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return sourcetag_setPrototypeOf(o, p); }\n\nfunction sourcetag_createSuper(Derived) { var hasNativeReflectConstruct = sourcetag_isNativeReflectConstruct(); return function _createSuperInternal() { var Super = sourcetag_getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = sourcetag_getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return sourcetag_possibleConstructorReturn(this, result); }; }\n\nfunction sourcetag_possibleConstructorReturn(self, call) { if (call && (sourcetag_typeof(call) === \"object\" || typeof call === \"function\")) { return call; } else if (call !== void 0) { throw new TypeError(\"Derived constructors may only return object or undefined\"); } return sourcetag_assertThisInitialized(self); }\n\nfunction sourcetag_assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return self; }\n\nfunction sourcetag_isNativeReflectConstruct() { if (typeof Reflect === \"undefined\" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === \"function\") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }\n\nfunction sourcetag_getPrototypeOf(o) { sourcetag_getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return sourcetag_getPrototypeOf(o); }\n\n/**\n * Image Tag\n * Depends on 'tags/htmltag', 'cloudinary'\n */\n\n\n\n\n/**\n * Creates an HTML (DOM) Image tag using Cloudinary as the source.\n * @constructor SourceTag\n * @extends HtmlTag\n * @param {string} [publicId]\n * @param {Object} [options]\n */\n\nvar sourcetag_SourceTag = /*#__PURE__*/function (_HtmlTag) {\n sourcetag_inherits(SourceTag, _HtmlTag);\n\n var _super = sourcetag_createSuper(SourceTag);\n\n function SourceTag(publicId) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n sourcetag_classCallCheck(this, SourceTag);\n\n return _super.call(this, \"source\", publicId, options);\n }\n /** @override */\n\n\n sourcetag_createClass(SourceTag, [{\n key: \"closeTag\",\n value: function closeTag() {\n return \"\";\n }\n /** @override */\n\n }, {\n key: \"attributes\",\n value: function attributes() {\n var srcsetParam = this.getOption('srcset');\n var attr = sourcetag_get(sourcetag_getPrototypeOf(SourceTag.prototype), \"attributes\", this).call(this) || {};\n var options = this.getOptions();\n merge_root_merge_default()(attr, generateImageResponsiveAttributes(this.publicId, attr, srcsetParam, options));\n\n if (!attr.srcset) {\n attr.srcset = url_url(this.publicId, options);\n }\n\n if (!attr.media && options.media) {\n attr.media = generateMediaAttr(options.media);\n }\n\n return attr;\n }\n }]);\n\n return SourceTag;\n}(htmltag);\n\n;\n/* harmony default export */ var sourcetag = (sourcetag_SourceTag);\n// CONCATENATED MODULE: ./src/tags/picturetag.js\nfunction picturetag_typeof(obj) { \"@babel/helpers - typeof\"; if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { picturetag_typeof = function _typeof(obj) { return typeof obj; }; } else { picturetag_typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return picturetag_typeof(obj); }\n\nfunction picturetag_classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nfunction picturetag_defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction picturetag_createClass(Constructor, protoProps, staticProps) { if (protoProps) picturetag_defineProperties(Constructor.prototype, protoProps); if (staticProps) picturetag_defineProperties(Constructor, staticProps); return Constructor; }\n\nfunction picturetag_get(target, property, receiver) { if (typeof Reflect !== \"undefined\" && Reflect.get) { picturetag_get = Reflect.get; } else { picturetag_get = function _get(target, property, receiver) { var base = picturetag_superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return picturetag_get(target, property, receiver || target); }\n\nfunction picturetag_superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = picturetag_getPrototypeOf(object); if (object === null) break; } return object; }\n\nfunction picturetag_inherits(subClass, superClass) { if (typeof superClass !== \"function\" && superClass !== null) { throw new TypeError(\"Super expression must either be null or a function\"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) picturetag_setPrototypeOf(subClass, superClass); }\n\nfunction picturetag_setPrototypeOf(o, p) { picturetag_setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return picturetag_setPrototypeOf(o, p); }\n\nfunction picturetag_createSuper(Derived) { var hasNativeReflectConstruct = picturetag_isNativeReflectConstruct(); return function _createSuperInternal() { var Super = picturetag_getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = picturetag_getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return picturetag_possibleConstructorReturn(this, result); }; }\n\nfunction picturetag_possibleConstructorReturn(self, call) { if (call && (picturetag_typeof(call) === \"object\" || typeof call === \"function\")) { return call; } else if (call !== void 0) { throw new TypeError(\"Derived constructors may only return object or undefined\"); } return picturetag_assertThisInitialized(self); }\n\nfunction picturetag_assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return self; }\n\nfunction picturetag_isNativeReflectConstruct() { if (typeof Reflect === \"undefined\" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === \"function\") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }\n\nfunction picturetag_getPrototypeOf(o) { picturetag_getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return picturetag_getPrototypeOf(o); }\n\n\n\n\n\n\n\nvar picturetag_PictureTag = /*#__PURE__*/function (_HtmlTag) {\n picturetag_inherits(PictureTag, _HtmlTag);\n\n var _super = picturetag_createSuper(PictureTag);\n\n function PictureTag(publicId) {\n var _this;\n\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var sources = arguments.length > 2 ? arguments[2] : undefined;\n\n picturetag_classCallCheck(this, PictureTag);\n\n _this = _super.call(this, 'picture', publicId, options);\n _this.widthList = sources;\n return _this;\n }\n /** @override */\n\n\n picturetag_createClass(PictureTag, [{\n key: \"content\",\n value: function content() {\n var _this2 = this;\n\n return this.widthList.map(function (_ref) {\n var min_width = _ref.min_width,\n max_width = _ref.max_width,\n transformation = _ref.transformation;\n\n var options = _this2.getOptions();\n\n var sourceTransformation = new src_transformation(options);\n sourceTransformation.chain().fromOptions(typeof transformation === 'string' ? {\n raw_transformation: transformation\n } : transformation);\n options = extractUrlParams(options);\n options.media = {\n min_width: min_width,\n max_width: max_width\n };\n options.transformation = sourceTransformation;\n return new sourcetag(_this2.publicId, options).toHtml();\n }).join('') + new imagetag(this.publicId, this.getOptions()).toHtml();\n }\n /** @override */\n\n }, {\n key: \"attributes\",\n value: function attributes() {\n var attr = picturetag_get(picturetag_getPrototypeOf(PictureTag.prototype), \"attributes\", this).call(this);\n\n delete attr.width;\n delete attr.height;\n return attr;\n }\n /** @override */\n\n }, {\n key: \"closeTag\",\n value: function closeTag() {\n return \"\";\n }\n }]);\n\n return PictureTag;\n}(htmltag);\n\n;\n/* harmony default export */ var picturetag = (picturetag_PictureTag);\n// CONCATENATED MODULE: ./src/tags/videotag.js\nfunction videotag_typeof(obj) { \"@babel/helpers - typeof\"; if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { videotag_typeof = function _typeof(obj) { return typeof obj; }; } else { videotag_typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return videotag_typeof(obj); }\n\nfunction videotag_classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nfunction videotag_defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction videotag_createClass(Constructor, protoProps, staticProps) { if (protoProps) videotag_defineProperties(Constructor.prototype, protoProps); if (staticProps) videotag_defineProperties(Constructor, staticProps); return Constructor; }\n\nfunction videotag_get(target, property, receiver) { if (typeof Reflect !== \"undefined\" && Reflect.get) { videotag_get = Reflect.get; } else { videotag_get = function _get(target, property, receiver) { var base = videotag_superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return videotag_get(target, property, receiver || target); }\n\nfunction videotag_superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = videotag_getPrototypeOf(object); if (object === null) break; } return object; }\n\nfunction videotag_inherits(subClass, superClass) { if (typeof superClass !== \"function\" && superClass !== null) { throw new TypeError(\"Super expression must either be null or a function\"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) videotag_setPrototypeOf(subClass, superClass); }\n\nfunction videotag_setPrototypeOf(o, p) { videotag_setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return videotag_setPrototypeOf(o, p); }\n\nfunction videotag_createSuper(Derived) { var hasNativeReflectConstruct = videotag_isNativeReflectConstruct(); return function _createSuperInternal() { var Super = videotag_getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = videotag_getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return videotag_possibleConstructorReturn(this, result); }; }\n\nfunction videotag_possibleConstructorReturn(self, call) { if (call && (videotag_typeof(call) === \"object\" || typeof call === \"function\")) { return call; } else if (call !== void 0) { throw new TypeError(\"Derived constructors may only return object or undefined\"); } return videotag_assertThisInitialized(self); }\n\nfunction videotag_assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return self; }\n\nfunction videotag_isNativeReflectConstruct() { if (typeof Reflect === \"undefined\" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === \"function\") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }\n\nfunction videotag_getPrototypeOf(o) { videotag_getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return videotag_getPrototypeOf(o); }\n\n/**\n * Video Tag\n * Depends on 'tags/htmltag', 'util', 'cloudinary'\n */\n\n\n\n\nvar VIDEO_TAG_PARAMS = ['source_types', 'source_transformation', 'fallback_content', 'poster', 'sources'];\nvar videotag_DEFAULT_VIDEO_SOURCE_TYPES = ['webm', 'mp4', 'ogv'];\nvar videotag_DEFAULT_POSTER_OPTIONS = {\n format: 'jpg',\n resource_type: 'video'\n};\n/**\n * Creates an HTML (DOM) Video tag using Cloudinary as the source.\n * @constructor VideoTag\n * @extends HtmlTag\n * @param {string} [publicId]\n * @param {Object} [options]\n */\n\nvar videotag_VideoTag = /*#__PURE__*/function (_HtmlTag) {\n videotag_inherits(VideoTag, _HtmlTag);\n\n var _super = videotag_createSuper(VideoTag);\n\n function VideoTag(publicId) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n videotag_classCallCheck(this, VideoTag);\n\n options = defaults({}, options, DEFAULT_VIDEO_PARAMS);\n return _super.call(this, \"video\", publicId.replace(/\\.(mp4|ogv|webm)$/, ''), options);\n }\n /**\n * Set the transformation to apply on each source\n * @function VideoTag#setSourceTransformation\n * @param {Object} an object with pairs of source type and source transformation\n * @returns {VideoTag} Returns this instance for chaining purposes.\n */\n\n\n videotag_createClass(VideoTag, [{\n key: \"setSourceTransformation\",\n value: function setSourceTransformation(value) {\n this.transformation().sourceTransformation(value);\n return this;\n }\n /**\n * Set the source types to include in the video tag\n * @function VideoTag#setSourceTypes\n * @param {Array} an array of source types\n * @returns {VideoTag} Returns this instance for chaining purposes.\n */\n\n }, {\n key: \"setSourceTypes\",\n value: function setSourceTypes(value) {\n this.transformation().sourceTypes(value);\n return this;\n }\n /**\n * Set the poster to be used in the video tag\n * @function VideoTag#setPoster\n * @param {string|Object} value\n * - string: a URL to use for the poster\n * - Object: transformation parameters to apply to the poster. May optionally include a public_id to use instead of the video public_id.\n * @returns {VideoTag} Returns this instance for chaining purposes.\n */\n\n }, {\n key: \"setPoster\",\n value: function setPoster(value) {\n this.transformation().poster(value);\n return this;\n }\n /**\n * Set the content to use as fallback in the video tag\n * @function VideoTag#setFallbackContent\n * @param {string} value - the content to use, in HTML format\n * @returns {VideoTag} Returns this instance for chaining purposes.\n */\n\n }, {\n key: \"setFallbackContent\",\n value: function setFallbackContent(value) {\n this.transformation().fallbackContent(value);\n return this;\n }\n }, {\n key: \"content\",\n value: function content() {\n var _this = this;\n\n var sourceTypes = this.transformation().getValue('source_types');\n var sourceTransformation = this.transformation().getValue('source_transformation');\n var fallback = this.transformation().getValue('fallback_content');\n var sources = this.getOption('sources');\n var innerTags = [];\n\n if (isArray_root_isArray_default()(sources) && !isEmpty(sources)) {\n innerTags = sources.map(function (source) {\n var src = url_url(_this.publicId, defaults({}, source.transformations || {}, {\n resource_type: 'video',\n format: source.type\n }), _this.getOptions());\n return _this.createSourceTag(src, source.type, source.codecs);\n });\n } else {\n if (isEmpty(sourceTypes)) {\n sourceTypes = videotag_DEFAULT_VIDEO_SOURCE_TYPES;\n }\n\n if (isArray_root_isArray_default()(sourceTypes)) {\n innerTags = sourceTypes.map(function (srcType) {\n var src = url_url(_this.publicId, defaults({}, sourceTransformation[srcType] || {}, {\n resource_type: 'video',\n format: srcType\n }), _this.getOptions());\n return _this.createSourceTag(src, srcType);\n });\n }\n }\n\n return innerTags.join('') + fallback;\n }\n }, {\n key: \"attributes\",\n value: function attributes() {\n var sourceTypes = this.getOption('source_types');\n var poster = this.getOption('poster');\n\n if (poster === undefined) {\n poster = {};\n }\n\n if (isPlainObject_root_isPlainObject_default()(poster)) {\n var defaultOptions = poster.public_id != null ? DEFAULT_IMAGE_PARAMS : videotag_DEFAULT_POSTER_OPTIONS;\n poster = url_url(poster.public_id || this.publicId, defaults({}, poster, defaultOptions, this.getOptions()));\n }\n\n var attr = videotag_get(videotag_getPrototypeOf(VideoTag.prototype), \"attributes\", this).call(this) || {};\n attr = omit(attr, VIDEO_TAG_PARAMS);\n var sources = this.getOption('sources'); // In case of empty sourceTypes - fallback to default source types is used.\n\n var hasSourceTags = !isEmpty(sources) || isEmpty(sourceTypes) || isArray_root_isArray_default()(sourceTypes);\n\n if (!hasSourceTags) {\n attr[\"src\"] = url_url(this.publicId, this.getOptions(), {\n resource_type: 'video',\n format: sourceTypes\n });\n }\n\n if (poster != null) {\n attr[\"poster\"] = poster;\n }\n\n return attr;\n }\n }, {\n key: \"createSourceTag\",\n value: function createSourceTag(src, sourceType) {\n var codecs = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;\n var mimeType = null;\n\n if (!isEmpty(sourceType)) {\n var videoType = sourceType === 'ogv' ? 'ogg' : sourceType;\n mimeType = 'video/' + videoType;\n\n if (!isEmpty(codecs)) {\n var codecsStr = isArray_root_isArray_default()(codecs) ? codecs.join(', ') : codecs;\n mimeType += '; codecs=' + codecsStr;\n }\n }\n\n return \"\";\n }\n }]);\n\n return VideoTag;\n}(htmltag);\n\n/* harmony default export */ var videotag = (videotag_VideoTag);\n// CONCATENATED MODULE: ./src/tags/clienthintsmetatag.js\nfunction clienthintsmetatag_typeof(obj) { \"@babel/helpers - typeof\"; if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { clienthintsmetatag_typeof = function _typeof(obj) { return typeof obj; }; } else { clienthintsmetatag_typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return clienthintsmetatag_typeof(obj); }\n\nfunction clienthintsmetatag_classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nfunction clienthintsmetatag_defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction clienthintsmetatag_createClass(Constructor, protoProps, staticProps) { if (protoProps) clienthintsmetatag_defineProperties(Constructor.prototype, protoProps); if (staticProps) clienthintsmetatag_defineProperties(Constructor, staticProps); return Constructor; }\n\nfunction clienthintsmetatag_inherits(subClass, superClass) { if (typeof superClass !== \"function\" && superClass !== null) { throw new TypeError(\"Super expression must either be null or a function\"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) clienthintsmetatag_setPrototypeOf(subClass, superClass); }\n\nfunction clienthintsmetatag_setPrototypeOf(o, p) { clienthintsmetatag_setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return clienthintsmetatag_setPrototypeOf(o, p); }\n\nfunction clienthintsmetatag_createSuper(Derived) { var hasNativeReflectConstruct = clienthintsmetatag_isNativeReflectConstruct(); return function _createSuperInternal() { var Super = clienthintsmetatag_getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = clienthintsmetatag_getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return clienthintsmetatag_possibleConstructorReturn(this, result); }; }\n\nfunction clienthintsmetatag_possibleConstructorReturn(self, call) { if (call && (clienthintsmetatag_typeof(call) === \"object\" || typeof call === \"function\")) { return call; } else if (call !== void 0) { throw new TypeError(\"Derived constructors may only return object or undefined\"); } return clienthintsmetatag_assertThisInitialized(self); }\n\nfunction clienthintsmetatag_assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return self; }\n\nfunction clienthintsmetatag_isNativeReflectConstruct() { if (typeof Reflect === \"undefined\" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === \"function\") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }\n\nfunction clienthintsmetatag_getPrototypeOf(o) { clienthintsmetatag_getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return clienthintsmetatag_getPrototypeOf(o); }\n\n/**\n * Image Tag\n * Depends on 'tags/htmltag', 'cloudinary'\n */\n\n\n/**\n * Creates an HTML (DOM) Meta tag that enables Client-Hints for the HTML page. Automating responsive images with Client Hints for more details.\n * @constructor ClientHintsMetaTag\n * @extends HtmlTag\n * @param {object} options\n * @example\n * tag = new ClientHintsMetaTag()\n * //returns: \n * @returns {[]}\n */\n\nfunction normalizeToArray(elements) {\n if (isArray_root_isArray_default()(elements)) {\n return elements;\n } else if (elements.constructor.name === \"NodeList\") {\n return normalizeToArray_toConsumableArray(elements); // ensure an array is always returned, even if nodelist\n } else if (isString_root_isString_default()(elements)) {\n return Array.prototype.slice.call(document.querySelectorAll(elements), 0);\n } else {\n return [elements];\n }\n}\n// CONCATENATED MODULE: ./src/util/features/transparentVideo/mountCloudinaryVideoTag.js\n/**\n * @param {HTMLElement} htmlElContainer\n * @param {object} clInstance cloudinary instance\n * @param {string} publicId\n * @param {object} options - TransformationOptions\n * @returns Promise\n */\nfunction mountCloudinaryVideoTag(htmlElContainer, clInstance, publicId, options) {\n return new Promise(function (resolve, reject) {\n htmlElContainer.innerHTML = clInstance.videoTag(publicId, options).toHtml(); // All videos under the html container must have a width of 100%, or they might overflow from the container\n\n var cloudinaryVideoElement = htmlElContainer.querySelector('.cld-transparent-video');\n cloudinaryVideoElement.style.width = '100%';\n resolve(htmlElContainer);\n });\n}\n\n/* harmony default export */ var transparentVideo_mountCloudinaryVideoTag = (mountCloudinaryVideoTag);\n// CONCATENATED MODULE: ./src/util/transformations/addFlag.js\n/**\n * @description - Function will push a flag to incoming options\n * @param {{transformation} | {...transformation}} options - These options are the same options provided to all our SDK methods\n * We expect options to either be the transformation itself, or an object containing\n * an array of transformations\n *\n * @param {string} flag\n * @returns the mutated options object\n */\nfunction addFlagToOptions(options, flag) {\n // Do we have transformation\n if (options.transformation) {\n options.transformation.push({\n flags: [flag]\n });\n } else {\n // no transformation\n // ensure the flags are extended\n if (!options.flags) {\n options.flags = [];\n }\n\n if (typeof options.flags === 'string') {\n options.flags = [options.flags];\n }\n\n options.flags.push(flag);\n }\n}\n\n/* harmony default export */ var addFlag = (addFlagToOptions);\n// CONCATENATED MODULE: ./src/util/features/transparentVideo/enforceOptionsForTransparentVideo.js\n\n\n/**\n * @description - Enforce option structure, sets defaults and ensures alpha flag exists\n * @param options {TransformationOptions}\n */\n\nfunction enforceOptionsForTransparentVideo(options) {\n options.autoplay = true;\n options.muted = true;\n options.controls = false;\n options.max_timeout_ms = options.max_timeout_ms || DEFAULT_TIMEOUT_MS;\n options[\"class\"] = options[\"class\"] || '';\n options[\"class\"] += ' cld-transparent-video';\n options.externalLibraries = options.externalLibraries || {};\n\n if (!options.externalLibraries.seeThru) {\n options.externalLibraries.seeThru = DEFAULT_EXTERNAL_LIBRARIES.seeThru;\n } // ensure there's an alpha transformation present\n // this is a non documented internal flag\n\n\n addFlag(options, 'alpha');\n}\n\n/* harmony default export */ var transparentVideo_enforceOptionsForTransparentVideo = (enforceOptionsForTransparentVideo);\n// CONCATENATED MODULE: ./src/util/xhr/loadScript.js\n/**\n * @description - Given a string URL, this function will load the script and resolve the promise.\n * The function doesn't resolve any value,\n * this is not a UMD loader where you can get your library name back.\n * @param scriptURL {string}\n * @param {number} max_timeout_ms - Time to elapse before promise is rejected\n * @param isAlreadyLoaded {boolean} if true, the loadScript resolves immediately\n * this is used for multiple invocations - prevents the script from being loaded multiple times\n * @return {Promise}\n */\nfunction loadScript(scriptURL, max_timeout_ms, isAlreadyLoaded) {\n return new Promise(function (resolve, reject) {\n if (isAlreadyLoaded) {\n resolve();\n } else {\n var scriptTag = document.createElement('script');\n scriptTag.src = scriptURL;\n var timerID = setTimeout(function () {\n reject({\n status: 'error',\n message: \"Timeout loading script \".concat(scriptURL)\n });\n }, max_timeout_ms); // 10 seconds for timeout\n\n scriptTag.onerror = function () {\n clearTimeout(timerID); // clear timeout reject error\n\n reject({\n status: 'error',\n message: \"Error loading \".concat(scriptURL)\n });\n };\n\n scriptTag.onload = function () {\n clearTimeout(timerID); // clear timeout reject error\n\n resolve();\n };\n\n document.head.appendChild(scriptTag);\n }\n });\n}\n\n/* harmony default export */ var xhr_loadScript = (loadScript);\n// CONCATENATED MODULE: ./src/util/xhr/getBlobFromURL.js\n/**\n * @description Converts a URL to a BLOB URL\n * @param {string} urlToLoad\n * @param {number} max_timeout_ms - Time to elapse before promise is rejected\n * @return {Promise<{\n * status: 'success' | 'error'\n * message?: string,\n * payload: {\n * url: string\n * }\n * }>}\n */\nfunction getBlobFromURL(urlToLoad, max_timeout_ms) {\n return new Promise(function (resolve, reject) {\n var timerID = setTimeout(function () {\n reject({\n status: 'error',\n message: 'Timeout loading Blob URL'\n });\n }, max_timeout_ms);\n var xhr = new XMLHttpRequest();\n xhr.responseType = 'blob';\n\n xhr.onload = function (response) {\n clearTimeout(timerID); // clear timeout reject error\n\n resolve({\n status: 'success',\n payload: {\n blobURL: URL.createObjectURL(xhr.response)\n }\n });\n };\n\n xhr.onerror = function () {\n clearTimeout(timerID); // clear timeout reject error\n\n reject({\n status: 'error',\n message: 'Error loading Blob URL'\n });\n };\n\n xhr.open('GET', urlToLoad, true);\n xhr.send();\n });\n}\n\n/* harmony default export */ var xhr_getBlobFromURL = (getBlobFromURL);\n// CONCATENATED MODULE: ./src/util/features/transparentVideo/createHiddenVideoTag.js\n/**\n * @description Creates a hidden HTMLVideoElement with the specified videoOptions\n * @param {{autoplay, playsinline, loop, muted, poster, blobURL, videoURL }} videoOptions\n * @param {boolean} videoOptions.autoplay - autoplays the video if true\n * @param {string} videoOptions.blobURL - the blobURL to set as video.src\n * @param {string} videoOptions.videoURL - the original videoURL the user created (with transformations)\n * @return {HTMLVideoElement}\n */\nfunction createHiddenVideoTag(videoOptions) {\n var autoplay = videoOptions.autoplay,\n playsinline = videoOptions.playsinline,\n loop = videoOptions.loop,\n muted = videoOptions.muted,\n poster = videoOptions.poster,\n blobURL = videoOptions.blobURL,\n videoURL = videoOptions.videoURL;\n var el = document.createElement('video');\n el.style.visibility = 'hidden';\n el.position = 'absolute';\n el.x = 0;\n el.y = 0;\n el.src = blobURL;\n el.setAttribute('data-video-url', videoURL); // for debugging/testing\n\n autoplay && el.setAttribute('autoplay', autoplay);\n playsinline && el.setAttribute('playsinline', playsinline);\n loop && el.setAttribute('loop', loop);\n muted && el.setAttribute('muted', muted);\n muted && (el.muted = muted); // this is also needed for autoplay, on top of setAttribute\n\n poster && el.setAttribute('poster', poster); // Free memory at the end of the file loading.\n\n el.onload = function () {\n URL.revokeObjectURL(blobURL);\n };\n\n return el;\n}\n\n/* harmony default export */ var transparentVideo_createHiddenVideoTag = (createHiddenVideoTag);\n// CONCATENATED MODULE: ./src/util/features/transparentVideo/instantiateSeeThru.js\n/**\n * @description This function creates a new instanc eof seeThru (seeThru.create()) and returns a promise of the seeThru instance\n * @param {HTMLVideoElement} videoElement\n * @param {number} max_timeout_ms - Time to elapse before promise is rejected\n * @param {string} customClass - A classname to be added to the canvas element created by seeThru\n * @param {boolean} autoPlay\n * @return {Promise} SeeThru instance or rejection error\n */\nfunction instantiateSeeThru(videoElement, max_timeout_ms, customClass, autoPlay) {\n var _window = window,\n seeThru = _window.seeThru,\n setTimeout = _window.setTimeout,\n clearTimeout = _window.clearTimeout;\n return new Promise(function (resolve, reject) {\n var timerID = setTimeout(function () {\n reject({\n status: 'error',\n message: 'Timeout instantiating seeThru instance'\n });\n }, max_timeout_ms);\n\n if (seeThru) {\n var seeThruInstance = seeThru.create(videoElement).ready(function () {\n // clear timeout reject error\n clearTimeout(timerID); // force container width, else the canvas can overflow out\n\n var canvasElement = seeThruInstance.getCanvas();\n canvasElement.style.width = '100%';\n canvasElement.className += ' ' + customClass; // start the video if autoplay is set\n\n if (autoPlay) {\n seeThruInstance.play();\n }\n\n resolve(seeThruInstance);\n });\n } else {\n reject({\n status: 'error',\n message: 'Error instantiating seeThru instance'\n });\n }\n });\n}\n\n/* harmony default export */ var transparentVideo_instantiateSeeThru = (instantiateSeeThru);\n// CONCATENATED MODULE: ./src/util/features/transparentVideo/mountSeeThruCanvasTag.js\n\n\n\n\n/**\n *\n * @param {HTMLElement} htmlElContainer\n * @param {string} videoURL\n * @param {TransformationOptions} options\n * @return {Promise}\n */\n\nfunction mountSeeThruCanvasTag(htmlElContainer, videoURL, options) {\n var poster = options.poster,\n autoplay = options.autoplay,\n playsinline = options.playsinline,\n loop = options.loop,\n muted = options.muted;\n videoURL = videoURL + '.mp4'; // seeThru always uses mp4\n\n return new Promise(function (resolve, reject) {\n xhr_loadScript(options.externalLibraries.seeThru, options.max_timeout_ms, window.seeThru).then(function () {\n xhr_getBlobFromURL(videoURL, options.max_timeout_ms).then(function (_ref) {\n var payload = _ref.payload;\n var videoElement = transparentVideo_createHiddenVideoTag({\n blobURL: payload.blobURL,\n videoURL: videoURL,\n // for debugging/testing\n poster: poster,\n autoplay: autoplay,\n playsinline: playsinline,\n loop: loop,\n muted: muted\n });\n htmlElContainer.appendChild(videoElement);\n transparentVideo_instantiateSeeThru(videoElement, options.max_timeout_ms, options[\"class\"], options.autoplay).then(function () {\n resolve(htmlElContainer);\n })[\"catch\"](function (err) {\n reject(err);\n }); // catch for getBlobFromURL()\n })[\"catch\"](function (_ref2) {\n var status = _ref2.status,\n message = _ref2.message;\n reject({\n status: status,\n message: message\n });\n }); // catch for loadScript()\n })[\"catch\"](function (_ref3) {\n var status = _ref3.status,\n message = _ref3.message;\n reject({\n status: status,\n message: message\n });\n });\n });\n}\n\n/* harmony default export */ var transparentVideo_mountSeeThruCanvasTag = (mountSeeThruCanvasTag);\n// CONCATENATED MODULE: ./src/util/features/transparentVideo/checkSupportForTransparency.js\n/**\n * @return {Promise} - Whether the browser supports transparent videos or not\n */\nfunction checkSupportForTransparency() {\n return new Promise(function (resolve, reject) {\n var video = document.createElement('video');\n var canPlay = video.canPlayType && video.canPlayType('video/webm; codecs=\"vp9\"');\n resolve(canPlay === 'maybe' || canPlay === 'probably');\n });\n}\n\n/* harmony default export */ var transparentVideo_checkSupportForTransparency = (checkSupportForTransparency);\n// CONCATENATED MODULE: ./src/cloudinary.js\nfunction cloudinary_classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nfunction cloudinary_defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction cloudinary_createClass(Constructor, protoProps, staticProps) { if (protoProps) cloudinary_defineProperties(Constructor.prototype, protoProps); if (staticProps) cloudinary_defineProperties(Constructor, staticProps); return Constructor; }\n\n\nvar applyBreakpoints, closestAbove, defaultBreakpoints, cloudinary_findContainerWidth, cloudinary_maxWidth, updateDpr;\n\n\n\n\n\n\n\n\n\n //\n\n\n\n\n\n\ndefaultBreakpoints = function defaultBreakpoints(width) {\n var steps = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 100;\n return steps * Math.ceil(width / steps);\n};\n\nclosestAbove = function closestAbove(list, value) {\n var i;\n i = list.length - 2;\n\n while (i >= 0 && list[i] >= value) {\n i--;\n }\n\n return list[i + 1];\n};\n\napplyBreakpoints = function applyBreakpoints(tag, width, steps, options) {\n var ref, ref1, ref2, responsive_use_breakpoints;\n responsive_use_breakpoints = (ref = (ref1 = (ref2 = options['responsive_use_breakpoints']) != null ? ref2 : options['responsive_use_stoppoints']) != null ? ref1 : this.config('responsive_use_breakpoints')) != null ? ref : this.config('responsive_use_stoppoints');\n\n if (!responsive_use_breakpoints || responsive_use_breakpoints === 'resize' && !options.resizing) {\n return width;\n } else {\n return this.calc_breakpoint(tag, width, steps);\n }\n};\n\ncloudinary_findContainerWidth = function findContainerWidth(element) {\n var containerWidth, style;\n containerWidth = 0;\n\n while ((element = element != null ? element.parentNode : void 0) instanceof Element && !containerWidth) {\n style = window.getComputedStyle(element);\n\n if (!/^inline/.test(style.display)) {\n containerWidth = lodash_width(element);\n }\n }\n\n return containerWidth;\n};\n\nupdateDpr = function updateDpr(dataSrc, roundDpr) {\n return dataSrc.replace(/\\bdpr_(1\\.0|auto)\\b/g, 'dpr_' + this.device_pixel_ratio(roundDpr));\n};\n\ncloudinary_maxWidth = function maxWidth(requiredWidth, tag) {\n var imageWidth;\n imageWidth = lodash_getData(tag, 'width') || 0;\n\n if (requiredWidth > imageWidth) {\n imageWidth = requiredWidth;\n lodash_setData(tag, 'width', requiredWidth);\n }\n\n return imageWidth;\n};\n\nvar cloudinary_Cloudinary = /*#__PURE__*/function () {\n /**\n * Creates a new Cloudinary instance.\n * @class Cloudinary\n * @classdesc Main class for accessing Cloudinary functionality.\n * @param {Object} options - A {@link Configuration} object for globally configuring Cloudinary account settings.\n * @example\n * Available configuration options \n */\n function Cloudinary(options) {\n cloudinary_classCallCheck(this, Cloudinary);\n\n var configuration;\n this.devicePixelRatioCache = {};\n this.responsiveConfig = {};\n this.responsiveResizeInitialized = false;\n configuration = new src_configuration(options); // Provided for backward compatibility\n\n this.config = function (newConfig, newValue) {\n return configuration.config(newConfig, newValue);\n };\n /**\n * Use \\ tags in the document to configure this `cloudinary` instance.\n * @return This {Cloudinary} instance for chaining.\n */\n\n\n this.fromDocument = function () {\n configuration.fromDocument();\n return this;\n };\n /**\n * Use environment variables to configure this `cloudinary` instance.\n * @return This {Cloudinary} instance for chaining.\n */\n\n\n this.fromEnvironment = function () {\n configuration.fromEnvironment();\n return this;\n };\n /**\n * Initializes the configuration of this `cloudinary` instance.\n * This is a convenience method that invokes both {@link Configuration#fromEnvironment|fromEnvironment()}\n * (Node.js environment only) and {@link Configuration#fromDocument|fromDocument()}.\n * It first tries to retrieve the configuration from the environment variable.\n * If not available, it tries from the document meta tags.\n * @function Cloudinary#init\n * @see Configuration#init\n * @return This {Cloudinary} instance for chaining.\n */\n\n\n this.init = function () {\n configuration.init();\n return this;\n };\n }\n /**\n * Convenience constructor\n * @param {Object} options\n * @return {Cloudinary}\n * @example cl = cloudinary.Cloudinary.new( { cloud_name: \"mycloud\"})\n */\n\n\n cloudinary_createClass(Cloudinary, [{\n key: \"url\",\n value:\n /**\n * Generates a URL for any asset in your Media library.\n * @function Cloudinary#url\n * @param {string} publicId - The public ID of the media asset.\n * @param {Object} [options] - The {@link Transformation} parameters to include in the URL.\n * @param {type} [options.type='upload'] - The asset's storage type.\n * For details on all fetch types, see\n * Fetch types .\n * @param {resourceType} [options.resource_type='image'] - The type of asset. Possible values:\n * Available image transformations \n * @see \n * Available video transformations \n */\n function url(publicId) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n return url_url(publicId, options, this.config());\n }\n /**\n * Generates a video asset URL.\n * @function Cloudinary#video_url\n * @param {string} publicId - The public ID of the video.\n * @param {Object} [options] - The {@link Transformation} parameters to include in the URL.\n * @param {type} [options.type='upload'] - The asset's storage type.\n * For details on all fetch types, see\n * Fetch types .\n * @return {string} The video URL.\n * @see Available video transformations \n */\n\n }, {\n key: \"video_url\",\n value: function video_url(publicId, options) {\n options = assign_root_assign_default()({\n resource_type: 'video'\n }, options);\n return this.url(publicId, options);\n }\n /**\n * Generates a URL for an image intended to be used as a thumbnail for the specified video.\n * Identical to {@link Cloudinary#url|url}, except that the `resource_type` is `video`\n * and the default `format` is `jpg`.\n * @function Cloudinary#video_thumbnail_url\n * @param {string} publicId - The unique identifier of the video from which you want to generate a thumbnail image.\n * @param {Object} [options] - The image {@link Transformation} parameters to apply to the thumbnail.\n * In addition to standard image transformations, you can also use the `start_offset` transformation parameter\n * to instruct Cloudinary to generate the thumbnail from a frame other than the middle frame of the video.\n * For details, see\n * Generating video thumbnails in the Cloudinary documentation.\n * @param {type} [options.type='upload'] - The asset's storage type.\n * @return {string} The URL of the video thumbnail image.\n * @see \n * Available image transformations \n */\n\n }, {\n key: \"video_thumbnail_url\",\n value: function video_thumbnail_url(publicId, options) {\n options = assign_root_assign_default()({}, DEFAULT_POSTER_OPTIONS, options);\n return this.url(publicId, options);\n }\n /**\n * Generates a string representation of the specified transformation options.\n * @function Cloudinary#transformation_string\n * @param {Object} options - The {@link Transformation} options.\n * @returns {string} The transformation string.\n * @see \n * Available image transformations \n * @see \n * Available video transformations \n */\n\n }, {\n key: \"transformation_string\",\n value: function transformation_string(options) {\n return new src_transformation(options).serialize();\n }\n /**\n * Generates an image tag.\n * @function Cloudinary#image\n * @param {string} publicId - The public ID of the image.\n * @param {Object} options - The {@link Transformation} parameters, {@link Configuration} parameters,\n * and standard HTML <img> tag attributes to apply to the image tag.\n * @return {HTMLImageElement} An image tag DOM element.\n * @see \n * Available image transformations \n * @see Available configuration options \n */\n\n }, {\n key: \"image\",\n value: function image(publicId) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var client_hints, img, ref;\n img = this.imageTag(publicId, options);\n client_hints = (ref = options.client_hints != null ? options.client_hints : this.config('client_hints')) != null ? ref : false;\n\n if (options.src == null && !client_hints) {\n // src must be removed before creating the DOM element to avoid loading the image\n img.setAttr(\"src\", '');\n }\n\n img = img.toDOM();\n\n if (!client_hints) {\n // cache the image src\n lodash_setData(img, 'src-cache', this.url(publicId, options)); // set image src taking responsiveness in account\n\n this.cloudinary_update(img, options);\n }\n\n return img;\n }\n /**\n * Creates a new ImageTag instance using the configuration defined for this `cloudinary` instance.\n * @function Cloudinary#imageTag\n * @param {string} publicId - The public ID of the image.\n * @param {Object} [options] - The {@link Transformation} parameters, {@link Configuration} parameters,\n * and standard HTML <img> tag attributes to apply to the image tag.\n * @return {ImageTag} An ImageTag instance that is attached (chained) to this Cloudinary instance.\n * @see \n * Available image transformations \n * @see Available configuration options \n */\n\n }, {\n key: \"imageTag\",\n value: function imageTag(publicId, options) {\n var tag;\n tag = new imagetag(publicId, this.config());\n tag.transformation().fromOptions(options);\n return tag;\n }\n /**\n * Creates a new PictureTag instance, configured using this `cloudinary` instance.\n * @function Cloudinary#PictureTag\n * @param {string} publicId - the public ID of the resource\n * @param {Object} options - additional options to pass to the new ImageTag instance\n * @return {PictureTag} A PictureTag that is attached (chained) to this Cloudinary instance\n */\n\n }, {\n key: \"pictureTag\",\n value: function pictureTag(publicId, options) {\n var tag;\n tag = new picturetag(publicId, this.config());\n tag.transformation().fromOptions(options);\n return tag;\n }\n /**\n * Creates a new SourceTag instance, configured using this `cloudinary` instance.\n * @function Cloudinary#SourceTag\n * @param {string} publicId - the public ID of the resource.\n * @param {Object} options - additional options to pass to the new instance.\n * @return {SourceTag} A SourceTag that is attached (chained) to this Cloudinary instance\n */\n\n }, {\n key: \"sourceTag\",\n value: function sourceTag(publicId, options) {\n var tag;\n tag = new sourcetag(publicId, this.config());\n tag.transformation().fromOptions(options);\n return tag;\n }\n /**\n * Generates a video thumbnail URL from the specified remote video and includes it in an image tag.\n * @function Cloudinary#video_thumbnail\n * @param {string} publicId - The unique identifier of the video from the relevant video site.\n * Additionally, either append the image extension type to the identifier value or set\n * the image delivery format in the 'options' parameter using the 'format' transformation option.\n * For example, a YouTube video might have the identifier: 'o-urnlaJpOA.jpg'.\n * @param {Object} [options] - The {@link Transformation} parameters to apply.\n * @return {HTMLImageElement} An HTML image tag element\n * @see \n * Available video transformations \n * @see Available configuration options \n */\n\n }, {\n key: \"video_thumbnail\",\n value: function video_thumbnail(publicId, options) {\n return this.image(publicId, merge_root_merge_default()({}, DEFAULT_POSTER_OPTIONS, options));\n }\n /**\n * Fetches a facebook profile image and delivers it in an image tag element.\n * @function Cloudinary#facebook_profile_image\n * @param {string} publicId - The Facebook numeric ID. Additionally, either append the image extension type\n * to the ID or set the image delivery format in the 'options' parameter using the 'format' transformation option.\n * @param {Object} [options] - The {@link Transformation} parameters, {@link Configuration} parameters,\n * and standard HTML <img> tag attributes to apply to the image tag.\n * @return {HTMLImageElement} An image tag element.\n * @see \n * Available image transformations \n * @see Available configuration options \n */\n\n }, {\n key: \"facebook_profile_image\",\n value: function facebook_profile_image(publicId, options) {\n return this.image(publicId, assign_root_assign_default()({\n type: 'facebook'\n }, options));\n }\n /**\n * Fetches a Twitter profile image by ID and delivers it in an image tag element.\n * @function Cloudinary#twitter_profile_image\n * @param {string} publicId - The Twitter numeric ID. Additionally, either append the image extension type\n * to the ID or set the image delivery format in the 'options' parameter using the 'format' transformation option.\n * @param {Object} [options] - The {@link Transformation} parameters, {@link Configuration} parameters,\n * and standard HTML <img> tag attributes to apply to the image tag.\n * @return {HTMLImageElement} An image tag element.\n * @see \n * Available image transformations \n * @see Available configuration options \n */\n\n }, {\n key: \"twitter_profile_image\",\n value: function twitter_profile_image(publicId, options) {\n return this.image(publicId, assign_root_assign_default()({\n type: 'twitter'\n }, options));\n }\n /**\n * Fetches a Twitter profile image by name and delivers it in an image tag element.\n * @function Cloudinary#twitter_name_profile_image\n * @param {string} publicId - The Twitter screen name. Additionally, either append the image extension type\n * to the screen name or set the image delivery format in the 'options' parameter using the 'format' transformation option.\n * @param {Object} [options] - The {@link Transformation} parameters, {@link Configuration} parameters,\n * and standard HTML <img> tag attributes to apply to the image tag.\n * @return {HTMLImageElement} An image tag element.\n * @see \n * Available image transformations \n * @see Available configuration options \n */\n\n }, {\n key: \"twitter_name_profile_image\",\n value: function twitter_name_profile_image(publicId, options) {\n return this.image(publicId, assign_root_assign_default()({\n type: 'twitter_name'\n }, options));\n }\n /**\n * Fetches a Gravatar profile image and delivers it in an image tag element.\n * @function Cloudinary#gravatar_image\n * @param {string} publicId - The calculated hash for the Gravatar email address.\n * Additionally, either append the image extension type to the screen name or set the image delivery format\n * in the 'options' parameter using the 'format' transformation option.\n * @param {Object} [options] - The {@link Transformation} parameters, {@link Configuration} parameters,\n * and standard HTML <img> tag attributes to apply to the image tag.\n * @return {HTMLImageElement} An image tag element.\n * @see \n * Available image transformations \n * @see Available configuration options \n */\n\n }, {\n key: \"gravatar_image\",\n value: function gravatar_image(publicId, options) {\n return this.image(publicId, assign_root_assign_default()({\n type: 'gravatar'\n }, options));\n }\n /**\n * Fetches an image from a remote URL and delivers it in an image tag element.\n * @function Cloudinary#fetch_image\n * @param {string} publicId - The full URL of the image to fetch, including the extension.\n * @param {Object} [options] - The {@link Transformation} parameters, {@link Configuration} parameters,\n * and standard HTML <img> tag attributes to apply to the image tag.\n * @return {HTMLImageElement} An image tag element.\n * @see \n * Available image transformations \n * @see Available configuration options \n */\n\n }, {\n key: \"fetch_image\",\n value: function fetch_image(publicId, options) {\n return this.image(publicId, assign_root_assign_default()({\n type: 'fetch'\n }, options));\n }\n /**\n * Generates a video tag.\n * @function Cloudinary#video\n * @param {string} publicId - The public ID of the video.\n * @param {Object} [options] - The {@link Transformation} parameters, {@link Configuration} parameters,\n * and standard HTML <img> tag attributes to apply to the image tag.\n * @return {HTMLVideoElement} A video tag DOM element.\n * @see \n * Available video transformations \n * @see Available configuration options \n */\n\n }, {\n key: \"video\",\n value: function video(publicId) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n return this.videoTag(publicId, options).toHtml();\n }\n /**\n * Creates a new VideoTag instance using the configuration defined for this `cloudinary` instance.\n * @function Cloudinary#videoTag\n * @param {string} publicId - The public ID of the video.\n * @param {Object} options - The {@link Transformation} parameters, {@link Configuration} parameters,\n * and standard HTML <img> tag attributes to apply to the image tag.\n * @return {VideoTag} A VideoTag that is attached (chained) to this `cloudinary` instance.\n * @see \n * Available video transformations \n * @see Available configuration options \n */\n\n }, {\n key: \"videoTag\",\n value: function videoTag(publicId, options) {\n options = defaults({}, options, this.config());\n return new videotag(publicId, options);\n }\n /**\n * Generates a sprite PNG image that contains all images with the specified tag and the corresponding css file.\n * @function Cloudinary#sprite_css\n * @param {string} publicId - The tag on which to base the sprite image.\n * @param {Object} [options] - The {@link Transformation} parameters to include in the URL.\n * @return {string} The URL of the generated CSS file. The sprite image has the same URL, but with a PNG extension.\n * @see \n * Sprite generation \n * @see \n * Available image transformations \n */\n\n }, {\n key: \"sprite_css\",\n value: function sprite_css(publicId, options) {\n options = assign_root_assign_default()({\n type: 'sprite'\n }, options);\n\n if (!publicId.match(/.css$/)) {\n options.format = 'css';\n }\n\n return this.url(publicId, options);\n }\n /**\n * Initializes responsive image behavior for all image tags with the 'cld-responsive'\n * (or other defined {@link Cloudinary#responsive|responsive} class).Note : Calls {@link Cloudinary#cloudinary_update|cloudinary_update} to modify image tags.\n * @function Cloudinary#responsive\n * @param {Object} options\n * @param {String} [options.responsive_class='cld-responsive'] - An alternative class\n * to locate the relevant <img> tags.\n * @param {number} [options.responsive_debounce=100] - The debounce interval in milliseconds.\n * @param {boolean} [bootstrap=true] If true, processes the <img> tags by calling\n * {@link Cloudinary#cloudinary_update|cloudinary_update}. When false, the tags are processed\n * only after a resize event.\n * @see {@link Cloudinary#cloudinary_update|cloudinary_update} for additional configuration parameters\n * @see Automating responsive images with JavaScript \n * @return {function} that when called, removes the resize EventListener added by this function\n */\n\n }, {\n key: \"responsive\",\n value: function responsive(options) {\n var _this = this;\n\n var bootstrap = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;\n var ref, ref1, ref2, responsiveClass, responsiveResize, timeout;\n this.responsiveConfig = merge_root_merge_default()(this.responsiveConfig || {}, options);\n responsiveClass = (ref = this.responsiveConfig.responsive_class) != null ? ref : this.config('responsive_class');\n\n if (bootstrap) {\n this.cloudinary_update(\"img.\".concat(responsiveClass, \", img.cld-hidpi\"), this.responsiveConfig);\n }\n\n responsiveResize = (ref1 = (ref2 = this.responsiveConfig.responsive_resize) != null ? ref2 : this.config('responsive_resize')) != null ? ref1 : true;\n\n if (responsiveResize && !this.responsiveResizeInitialized) {\n this.responsiveConfig.resizing = this.responsiveResizeInitialized = true;\n timeout = null;\n\n var makeResponsive = function makeResponsive() {\n var debounce, ref3, ref4, reset, run, wait, waitFunc;\n debounce = (ref3 = (ref4 = _this.responsiveConfig.responsive_debounce) != null ? ref4 : _this.config('responsive_debounce')) != null ? ref3 : 100;\n\n reset = function reset() {\n if (timeout) {\n clearTimeout(timeout);\n timeout = null;\n }\n };\n\n run = function run() {\n return _this.cloudinary_update(\"img.\".concat(responsiveClass), _this.responsiveConfig);\n };\n\n waitFunc = function waitFunc() {\n reset();\n return run();\n };\n\n wait = function wait() {\n reset();\n timeout = setTimeout(waitFunc, debounce);\n };\n\n if (debounce) {\n return wait();\n } else {\n return run();\n }\n };\n\n window.addEventListener('resize', makeResponsive);\n return function () {\n return window.removeEventListener('resize', makeResponsive);\n };\n }\n }\n /**\n * @function Cloudinary#calc_breakpoint\n * @private\n * @ignore\n */\n\n }, {\n key: \"calc_breakpoint\",\n value: function calc_breakpoint(element, width, steps) {\n var breakpoints = lodash_getData(element, 'breakpoints') || lodash_getData(element, 'stoppoints') || this.config('breakpoints') || this.config('stoppoints') || defaultBreakpoints;\n\n if (isFunction_root_isFunction_default()(breakpoints)) {\n return breakpoints(width, steps);\n } else {\n if (isString_root_isString_default()(breakpoints)) {\n breakpoints = breakpoints.split(',').map(function (point) {\n return parseInt(point);\n }).sort(function (a, b) {\n return a - b;\n });\n }\n\n return closestAbove(breakpoints, width);\n }\n }\n /**\n * @function Cloudinary#calc_stoppoint\n * @deprecated Use {@link calc_breakpoint} instead.\n * @private\n * @ignore\n */\n\n }, {\n key: \"calc_stoppoint\",\n value: function calc_stoppoint(element, width, steps) {\n return this.calc_breakpoint(element, width, steps);\n }\n /**\n * @function Cloudinary#device_pixel_ratio\n * @private\n */\n\n }, {\n key: \"device_pixel_ratio\",\n value: function device_pixel_ratio(roundDpr) {\n roundDpr = roundDpr == null ? true : roundDpr;\n var dpr = (typeof window !== \"undefined\" && window !== null ? window.devicePixelRatio : void 0) || 1;\n\n if (roundDpr) {\n dpr = Math.ceil(dpr);\n }\n\n if (dpr <= 0 || dpr === 0 / 0) {\n dpr = 1;\n }\n\n var dprString = dpr.toString();\n\n if (dprString.match(/^\\d+$/)) {\n dprString += '.0';\n }\n\n return dprString;\n }\n /**\n * Applies responsiveness to all <img> tags under each relevant node\n * (regardless of whether the tag contains the {@link Cloudinary#responsive|responsive} class).\n * @param {Element[]} nodes The parent nodes where you want to search for <img> tags.\n * @param {Object} [options] The {@link Cloudinary#cloudinary_update|cloudinary_update} options to apply.\n * @see Available image transformations \n * @function Cloudinary#processImageTags\n */\n\n }, {\n key: \"processImageTags\",\n value: function processImageTags(nodes, options) {\n if (isEmpty(nodes)) {\n // similar to `$.fn.cloudinary`\n return this;\n }\n\n options = defaults({}, options || {}, this.config());\n var images = nodes.filter(function (node) {\n return /^img$/i.test(node.tagName);\n }).map(function (node) {\n var imgOptions = assign_root_assign_default()({\n width: node.getAttribute('width'),\n height: node.getAttribute('height'),\n src: node.getAttribute('src')\n }, options);\n var publicId = imgOptions['source'] || imgOptions['src'];\n delete imgOptions['source'];\n delete imgOptions['src'];\n var attr = new src_transformation(imgOptions).toHtmlAttributes();\n lodash_setData(node, 'src-cache', url_url(publicId, imgOptions));\n node.setAttribute('width', attr.width);\n node.setAttribute('height', attr.height);\n return node;\n });\n this.cloudinary_update(images, options);\n return this;\n }\n /**\n * Updates the dpr (for `dpr_auto`) and responsive (for `w_auto`) fields according to\n * the current container size and the device pixel ratio.Note :`w_auto` is updated only for images marked with the `cld-responsive`\n * (or other defined {@link Cloudinary#responsive|responsive}) class.\n * @function Cloudinary#cloudinary_update\n * @param {(Array|string|NodeList)} elements - The HTML image elements to modify.\n * @param {Object} options\n * @param {boolean|string} [options.responsive_use_breakpoints=true]\n * Possible values:\n * Available image transformations \n * @see \n * Available video transformations \n */\n\n }, {\n key: \"transformation\",\n value: function transformation(options) {\n return src_transformation[\"new\"](this.config()).fromOptions(options).setParent(this);\n }\n /**\n * @description This function will append a TransparentVideo element to the htmlElContainer passed to it.\n * TransparentVideo can either be an HTML Video tag, or an HTML Canvas Tag.\n * @param {HTMLElement} htmlElContainer\n * @param {string} publicId\n * @param {object} options The {@link TransparentVideoOptions} options to apply - Extends TransformationOptions\n * options.playsinline - HTML Video Tag's native playsinline - passed to video element.\n * options.poster - HTML Video Tag's native poster - passed to video element.\n * options.loop - HTML Video Tag's native loop - passed to video element.\n * options?.externalLibraries = { [key: string]: string} - map of external libraries to be loaded\n * @return {Promise}\n */\n\n }, {\n key: \"injectTransparentVideoElement\",\n value: function injectTransparentVideoElement(htmlElContainer, publicId) {\n var _this3 = this;\n\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n return new Promise(function (resolve, reject) {\n if (!htmlElContainer) {\n reject({\n status: 'error',\n message: 'Expecting htmlElContainer to be HTMLElement'\n });\n }\n\n transparentVideo_enforceOptionsForTransparentVideo(options);\n\n var videoURL = _this3.video_url(publicId, options);\n\n transparentVideo_checkSupportForTransparency().then(function (isNativelyTransparent) {\n var mountPromise;\n\n if (isNativelyTransparent) {\n mountPromise = transparentVideo_mountCloudinaryVideoTag(htmlElContainer, _this3, publicId, options);\n resolve(htmlElContainer);\n } else {\n mountPromise = transparentVideo_mountSeeThruCanvasTag(htmlElContainer, videoURL, options);\n }\n\n mountPromise.then(function () {\n resolve(htmlElContainer);\n })[\"catch\"](function (_ref) {\n var status = _ref.status,\n message = _ref.message;\n reject({\n status: status,\n message: message\n });\n }); // catch for checkSupportForTransparency()\n })[\"catch\"](function (_ref2) {\n var status = _ref2.status,\n message = _ref2.message;\n reject({\n status: status,\n message: message\n });\n });\n });\n }\n }], [{\n key: \"new\",\n value: function _new(options) {\n return new this(options);\n }\n }]);\n\n return Cloudinary;\n}();\n\nassign_root_assign_default()(cloudinary_Cloudinary, constants_namespaceObject);\n/* harmony default export */ var cloudinary = (cloudinary_Cloudinary);\n// CONCATENATED MODULE: ./src/namespace/cloudinary-core.js\n/**\n * Creates the namespace for Cloudinary\n */\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n/* harmony default export */ var cloudinary_core = __webpack_exports__[\"default\"] = ({\n ClientHintsMetaTag: clienthintsmetatag,\n Cloudinary: cloudinary,\n Condition: condition,\n Configuration: src_configuration,\n crc32: src_crc32,\n Expression: expression,\n FetchLayer: fetchlayer,\n HtmlTag: htmltag,\n ImageTag: imagetag,\n Layer: layer_layer,\n PictureTag: picturetag,\n SubtitlesLayer: subtitleslayer,\n TextLayer: textlayer,\n Transformation: src_transformation,\n utf8_encode: src_utf8_encode,\n Util: lodash_namespaceObject,\n VideoTag: videotag\n});\n\n\n/***/ }),\n\n/***/ \"lodash/assign\":\n/***/ (function(module, exports) {\n\nmodule.exports = __WEBPACK_EXTERNAL_MODULE_lodash_assign__;\n\n/***/ }),\n\n/***/ \"lodash/cloneDeep\":\n/***/ (function(module, exports) {\n\nmodule.exports = __WEBPACK_EXTERNAL_MODULE_lodash_cloneDeep__;\n\n/***/ }),\n\n/***/ \"lodash/compact\":\n/***/ (function(module, exports) {\n\nmodule.exports = __WEBPACK_EXTERNAL_MODULE_lodash_compact__;\n\n/***/ }),\n\n/***/ \"lodash/difference\":\n/***/ (function(module, exports) {\n\nmodule.exports = __WEBPACK_EXTERNAL_MODULE_lodash_difference__;\n\n/***/ }),\n\n/***/ \"lodash/functions\":\n/***/ (function(module, exports) {\n\nmodule.exports = __WEBPACK_EXTERNAL_MODULE_lodash_functions__;\n\n/***/ }),\n\n/***/ \"lodash/identity\":\n/***/ (function(module, exports) {\n\nmodule.exports = __WEBPACK_EXTERNAL_MODULE_lodash_identity__;\n\n/***/ }),\n\n/***/ \"lodash/includes\":\n/***/ (function(module, exports) {\n\nmodule.exports = __WEBPACK_EXTERNAL_MODULE_lodash_includes__;\n\n/***/ }),\n\n/***/ \"lodash/isArray\":\n/***/ (function(module, exports) {\n\nmodule.exports = __WEBPACK_EXTERNAL_MODULE_lodash_isArray__;\n\n/***/ }),\n\n/***/ \"lodash/isElement\":\n/***/ (function(module, exports) {\n\nmodule.exports = __WEBPACK_EXTERNAL_MODULE_lodash_isElement__;\n\n/***/ }),\n\n/***/ \"lodash/isFunction\":\n/***/ (function(module, exports) {\n\nmodule.exports = __WEBPACK_EXTERNAL_MODULE_lodash_isFunction__;\n\n/***/ }),\n\n/***/ \"lodash/isPlainObject\":\n/***/ (function(module, exports) {\n\nmodule.exports = __WEBPACK_EXTERNAL_MODULE_lodash_isPlainObject__;\n\n/***/ }),\n\n/***/ \"lodash/isString\":\n/***/ (function(module, exports) {\n\nmodule.exports = __WEBPACK_EXTERNAL_MODULE_lodash_isString__;\n\n/***/ }),\n\n/***/ \"lodash/merge\":\n/***/ (function(module, exports) {\n\nmodule.exports = __WEBPACK_EXTERNAL_MODULE_lodash_merge__;\n\n/***/ }),\n\n/***/ \"lodash/trim\":\n/***/ (function(module, exports) {\n\nmodule.exports = __WEBPACK_EXTERNAL_MODULE_lodash_trim__;\n\n/***/ })\n\n/******/ });\n});\n//# sourceMappingURL=cloudinary-core.js.map","if (Number(process.versions.node.split('.')[0]) < 8) {\n console.warn('DEPRECATION NOTICE - Node 6 has been scheduled for removal from the Cloudinary SDK');\n // required polyfills for native ES6/7 functions (such as String.prototype.padStart)\n require('core-js');\n module.exports = require('./lib-es5/cloudinary');\n} else {\n module.exports = require('./lib/cloudinary');\n}\n","\"use strict\";\n\nvar utils = require(\"./utils\");\nvar call_api = require(\"./api_client/call_api\");\n\nvar extend = utils.extend,\n pickOnlyExistingValues = utils.pickOnlyExistingValues;\n\n\nvar TRANSFORMATIONS_URI = \"transformations\";\n\nfunction deleteResourcesParams(options) {\n var params = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n return extend(params, pickOnlyExistingValues(options, \"keep_original\", \"invalidate\", \"next_cursor\", \"transformations\"));\n}\n\nexports.ping = function ping(callback) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n return call_api(\"get\", [\"ping\"], {}, callback, options);\n};\n\nexports.usage = function usage(callback) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n var uri = [\"usage\"];\n\n if (options.date) {\n uri.push(options.date);\n }\n\n return call_api(\"get\", uri, {}, callback, options);\n};\n\nexports.resource_types = function resource_types(callback) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n return call_api(\"get\", [\"resources\"], {}, callback, options);\n};\n\nexports.resources = function resources(callback) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n var resource_type = void 0,\n type = void 0,\n uri = void 0;\n resource_type = options.resource_type || \"image\";\n type = options.type;\n uri = [\"resources\", resource_type];\n if (type != null) {\n uri.push(type);\n }\n if (options.start_at != null && Object.prototype.toString.call(options.start_at) === '[object Date]') {\n options.start_at = options.start_at.toUTCString();\n }\n return call_api(\"get\", uri, pickOnlyExistingValues(options, \"next_cursor\", \"max_results\", \"prefix\", \"tags\", \"context\", \"direction\", \"moderations\", \"start_at\", \"metadata\"), callback, options);\n};\n\nexports.resources_by_tag = function resources_by_tag(tag, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var resource_type = void 0,\n uri = void 0;\n resource_type = options.resource_type || \"image\";\n uri = [\"resources\", resource_type, \"tags\", tag];\n return call_api(\"get\", uri, pickOnlyExistingValues(options, \"next_cursor\", \"max_results\", \"tags\", \"context\", \"direction\", \"moderations\", \"metadata\"), callback, options);\n};\n\nexports.resources_by_context = function resources_by_context(key, value, callback) {\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n\n var params = void 0,\n resource_type = void 0,\n uri = void 0;\n resource_type = options.resource_type || \"image\";\n uri = [\"resources\", resource_type, \"context\"];\n params = pickOnlyExistingValues(options, \"next_cursor\", \"max_results\", \"tags\", \"context\", \"direction\", \"moderations\", \"metadata\");\n params.key = key;\n if (value != null) {\n params.value = value;\n }\n return call_api(\"get\", uri, params, callback, options);\n};\n\nexports.resources_by_moderation = function resources_by_moderation(kind, status, callback) {\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n\n var resource_type = void 0,\n uri = void 0;\n resource_type = options.resource_type || \"image\";\n uri = [\"resources\", resource_type, \"moderations\", kind, status];\n return call_api(\"get\", uri, pickOnlyExistingValues(options, \"next_cursor\", \"max_results\", \"tags\", \"context\", \"direction\", \"moderations\", \"metadata\"), callback, options);\n};\n\nexports.resources_by_ids = function resources_by_ids(public_ids, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var params = void 0,\n resource_type = void 0,\n type = void 0,\n uri = void 0;\n resource_type = options.resource_type || \"image\";\n type = options.type || \"upload\";\n uri = [\"resources\", resource_type, type];\n params = pickOnlyExistingValues(options, \"tags\", \"context\", \"moderations\");\n params[\"public_ids[]\"] = public_ids;\n return call_api(\"get\", uri, params, callback, options);\n};\n\nexports.resource = function resource(public_id, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var resource_type = void 0,\n type = void 0,\n uri = void 0;\n resource_type = options.resource_type || \"image\";\n type = options.type || \"upload\";\n uri = [\"resources\", resource_type, type, public_id];\n return call_api(\"get\", uri, pickOnlyExistingValues(options, \"exif\", \"cinemagraph_analysis\", \"colors\", \"derived_next_cursor\", \"faces\", \"image_metadata\", \"pages\", \"phash\", \"coordinates\", \"max_results\", \"versions\", \"accessibility_analysis\"), callback, options);\n};\n\nexports.restore = function restore(public_ids, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n options.content_type = 'json';\n var resource_type = void 0,\n type = void 0,\n uri = void 0;\n resource_type = options.resource_type || \"image\";\n type = options.type || \"upload\";\n uri = [\"resources\", resource_type, type, \"restore\"];\n return call_api(\"post\", uri, {\n public_ids: public_ids,\n versions: options.versions\n }, callback, options);\n};\n\nexports.update = function update(public_id, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var params = void 0,\n resource_type = void 0,\n type = void 0,\n uri = void 0;\n resource_type = options.resource_type || \"image\";\n type = options.type || \"upload\";\n uri = [\"resources\", resource_type, type, public_id];\n params = utils.updateable_resource_params(options);\n if (options.moderation_status != null) {\n params.moderation_status = options.moderation_status;\n }\n return call_api(\"post\", uri, params, callback, options);\n};\n\nexports.delete_resources = function delete_resources(public_ids, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var resource_type = void 0,\n type = void 0,\n uri = void 0;\n resource_type = options.resource_type || \"image\";\n type = options.type || \"upload\";\n uri = [\"resources\", resource_type, type];\n return call_api(\"delete\", uri, deleteResourcesParams(options, {\n \"public_ids[]\": public_ids\n }), callback, options);\n};\n\nexports.delete_resources_by_prefix = function delete_resources_by_prefix(prefix, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var resource_type = void 0,\n type = void 0,\n uri = void 0;\n resource_type = options.resource_type || \"image\";\n type = options.type || \"upload\";\n uri = [\"resources\", resource_type, type];\n return call_api(\"delete\", uri, deleteResourcesParams(options, {\n prefix: prefix\n }), callback, options);\n};\n\nexports.delete_resources_by_tag = function delete_resources_by_tag(tag, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var resource_type = void 0,\n uri = void 0;\n resource_type = options.resource_type || \"image\";\n uri = [\"resources\", resource_type, \"tags\", tag];\n return call_api(\"delete\", uri, deleteResourcesParams(options), callback, options);\n};\n\nexports.delete_all_resources = function delete_all_resources(callback) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n var resource_type = void 0,\n type = void 0,\n uri = void 0;\n\n resource_type = options.resource_type || \"image\";\n type = options.type || \"upload\";\n uri = [\"resources\", resource_type, type];\n return call_api(\"delete\", uri, deleteResourcesParams(options, {\n all: true\n }), callback, options);\n};\n\nexports.delete_derived_resources = function delete_derived_resources(derived_resource_ids, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var uri = void 0;\n uri = [\"derived_resources\"];\n return call_api(\"delete\", uri, {\n \"derived_resource_ids[]\": derived_resource_ids\n }, callback, options);\n};\n\nexports.delete_derived_by_transformation = function delete_derived_by_transformation(public_ids, transformations, callback) {\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n\n var params = void 0,\n resource_type = void 0,\n type = void 0,\n uri = void 0;\n resource_type = options.resource_type || \"image\";\n type = options.type || \"upload\";\n uri = \"resources/\" + resource_type + \"/\" + type;\n params = extend({\n \"public_ids[]\": public_ids\n }, pickOnlyExistingValues(options, \"invalidate\"));\n params.keep_original = true;\n params.transformations = utils.build_eager(transformations);\n return call_api(\"delete\", uri, params, callback, options);\n};\n\nexports.tags = function tags(callback) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n var resource_type = void 0,\n uri = void 0;\n resource_type = options.resource_type || \"image\";\n uri = [\"tags\", resource_type];\n return call_api(\"get\", uri, pickOnlyExistingValues(options, \"next_cursor\", \"max_results\", \"prefix\"), callback, options);\n};\n\nexports.transformations = function transformations(callback) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n var params = pickOnlyExistingValues(options, \"next_cursor\", \"max_results\", \"named\");\n return call_api(\"get\", TRANSFORMATIONS_URI, params, callback, options);\n};\n\nexports.transformation = function transformation(transformationName, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var params = pickOnlyExistingValues(options, \"next_cursor\", \"max_results\");\n params.transformation = utils.build_eager(transformationName);\n return call_api(\"get\", TRANSFORMATIONS_URI, params, callback, options);\n};\n\nexports.delete_transformation = function delete_transformation(transformationName, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var params = {};\n params.transformation = utils.build_eager(transformationName);\n return call_api(\"delete\", TRANSFORMATIONS_URI, params, callback, options);\n};\n\nexports.update_transformation = function update_transformation(transformationName, updates, callback) {\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n\n var params = pickOnlyExistingValues(updates, \"allowed_for_strict\");\n params.transformation = utils.build_eager(transformationName);\n if (updates.unsafe_update != null) {\n params.unsafe_update = utils.build_eager(updates.unsafe_update);\n }\n return call_api(\"put\", TRANSFORMATIONS_URI, params, callback, options);\n};\n\nexports.create_transformation = function create_transformation(name, definition, callback) {\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n\n var params = { name };\n params.transformation = utils.build_eager(definition);\n return call_api(\"post\", TRANSFORMATIONS_URI, params, callback, options);\n};\n\nexports.upload_presets = function upload_presets(callback) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n return call_api(\"get\", [\"upload_presets\"], pickOnlyExistingValues(options, \"next_cursor\", \"max_results\"), callback, options);\n};\n\nexports.upload_preset = function upload_preset(name, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var uri = void 0;\n uri = [\"upload_presets\", name];\n return call_api(\"get\", uri, {}, callback, options);\n};\n\nexports.delete_upload_preset = function delete_upload_preset(name, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var uri = void 0;\n uri = [\"upload_presets\", name];\n return call_api(\"delete\", uri, {}, callback, options);\n};\n\nexports.update_upload_preset = function update_upload_preset(name, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var params = void 0,\n uri = void 0;\n uri = [\"upload_presets\", name];\n params = utils.merge(utils.clear_blank(utils.build_upload_params(options)), pickOnlyExistingValues(options, \"unsigned\", \"disallow_public_id\", \"live\"));\n return call_api(\"put\", uri, params, callback, options);\n};\n\nexports.create_upload_preset = function create_upload_preset(callback) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n var params = void 0,\n uri = void 0;\n uri = [\"upload_presets\"];\n params = utils.merge(utils.clear_blank(utils.build_upload_params(options)), pickOnlyExistingValues(options, \"name\", \"unsigned\", \"disallow_public_id\", \"live\"));\n return call_api(\"post\", uri, params, callback, options);\n};\n\nexports.root_folders = function root_folders(callback) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n var uri = void 0,\n params = void 0;\n uri = [\"folders\"];\n params = pickOnlyExistingValues(options, \"next_cursor\", \"max_results\");\n return call_api(\"get\", uri, params, callback, options);\n};\n\nexports.sub_folders = function sub_folders(path, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var uri = void 0,\n params = void 0;\n uri = [\"folders\", path];\n params = pickOnlyExistingValues(options, \"next_cursor\", \"max_results\");\n return call_api(\"get\", uri, params, callback, options);\n};\n\n/**\n * Creates an empty folder\n *\n * @param {string} path The folder path to create\n * @param {function} callback Callback function\n * @param {object} options Configuration options\n * @returns {*}\n */\nexports.create_folder = function create_folder(path, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var uri = void 0;\n uri = [\"folders\", path];\n return call_api(\"post\", uri, {}, callback, options);\n};\n\nexports.delete_folder = function delete_folder(path, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var uri = void 0;\n uri = [\"folders\", path];\n return call_api(\"delete\", uri, {}, callback, options);\n};\n\nexports.upload_mappings = function upload_mappings(callback) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n var params = void 0;\n params = pickOnlyExistingValues(options, \"next_cursor\", \"max_results\");\n return call_api(\"get\", \"upload_mappings\", params, callback, options);\n};\n\nexports.upload_mapping = function upload_mapping(name, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n if (name == null) {\n name = null;\n }\n return call_api(\"get\", 'upload_mappings', {\n folder: name\n }, callback, options);\n};\n\nexports.delete_upload_mapping = function delete_upload_mapping(name, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n return call_api(\"delete\", 'upload_mappings', {\n folder: name\n }, callback, options);\n};\n\nexports.update_upload_mapping = function update_upload_mapping(name, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var params = void 0;\n params = pickOnlyExistingValues(options, \"template\");\n params.folder = name;\n return call_api(\"put\", 'upload_mappings', params, callback, options);\n};\n\nexports.create_upload_mapping = function create_upload_mapping(name, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var params = void 0;\n params = pickOnlyExistingValues(options, \"template\");\n params.folder = name;\n return call_api(\"post\", 'upload_mappings', params, callback, options);\n};\n\nfunction publishResource(byKey, value, callback) {\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n\n var params = void 0,\n resource_type = void 0,\n uri = void 0;\n params = pickOnlyExistingValues(options, \"type\", \"invalidate\", \"overwrite\");\n params[byKey] = value;\n resource_type = options.resource_type || \"image\";\n uri = [\"resources\", resource_type, \"publish_resources\"];\n options = extend({\n resource_type: resource_type\n }, options);\n return call_api(\"post\", uri, params, callback, options);\n}\n\nexports.publish_by_prefix = function publish_by_prefix(prefix, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n return publishResource(\"prefix\", prefix, callback, options);\n};\n\nexports.publish_by_tag = function publish_by_tag(tag, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n return publishResource(\"tag\", tag, callback, options);\n};\n\nexports.publish_by_ids = function publish_by_ids(public_ids, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n return publishResource(\"public_ids\", public_ids, callback, options);\n};\n\nexports.list_streaming_profiles = function list_streaming_profiles(callback) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n return call_api(\"get\", \"streaming_profiles\", {}, callback, options);\n};\n\nexports.get_streaming_profile = function get_streaming_profile(name, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n return call_api(\"get\", \"streaming_profiles/\" + name, {}, callback, options);\n};\n\nexports.delete_streaming_profile = function delete_streaming_profile(name, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n return call_api(\"delete\", \"streaming_profiles/\" + name, {}, callback, options);\n};\n\nexports.update_streaming_profile = function update_streaming_profile(name, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var params = void 0;\n params = utils.build_streaming_profiles_param(options);\n return call_api(\"put\", \"streaming_profiles/\" + name, params, callback, options);\n};\n\nexports.create_streaming_profile = function create_streaming_profile(name, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var params = void 0;\n params = utils.build_streaming_profiles_param(options);\n params.name = name;\n return call_api(\"post\", 'streaming_profiles', params, callback, options);\n};\n\nfunction updateResourcesAccessMode(access_mode, by_key, value, callback) {\n var options = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : {};\n\n var params = void 0,\n resource_type = void 0,\n type = void 0;\n resource_type = options.resource_type || \"image\";\n type = options.type || \"upload\";\n params = {\n access_mode: access_mode\n };\n params[by_key] = value;\n return call_api(\"post\", \"resources/\" + resource_type + \"/\" + type + \"/update_access_mode\", params, callback, options);\n}\n\nexports.search = function search(params, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n options.content_type = 'json';\n return call_api(\"post\", \"resources/search\", params, callback, options);\n};\n\nexports.update_resources_access_mode_by_prefix = function update_resources_access_mode_by_prefix(access_mode, prefix, callback) {\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n\n return updateResourcesAccessMode(access_mode, \"prefix\", prefix, callback, options);\n};\n\nexports.update_resources_access_mode_by_tag = function update_resources_access_mode_by_tag(access_mode, tag, callback) {\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n\n return updateResourcesAccessMode(access_mode, \"tag\", tag, callback, options);\n};\n\nexports.update_resources_access_mode_by_ids = function update_resources_access_mode_by_ids(access_mode, ids, callback) {\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n\n return updateResourcesAccessMode(access_mode, \"public_ids[]\", ids, callback, options);\n};\n\n/**\n * Creates a new metadata field definition\n *\n * @see https://cloudinary.com/documentation/admin_api#create_a_metadata_field\n *\n * @param {Object} field The field to add\n * @param {Function} callback Callback function\n * @param {Object} options Configuration options\n *\n * @return {Object}\n */\nexports.add_metadata_field = function add_metadata_field(field, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var params = pickOnlyExistingValues(field, \"external_id\", \"type\", \"label\", \"mandatory\", \"default_value\", \"validation\", \"datasource\");\n options.content_type = \"json\";\n return call_api(\"post\", [\"metadata_fields\"], params, callback, options);\n};\n\n/**\n * Returns a list of all metadata field definitions\n *\n * @see https://cloudinary.com/documentation/admin_api#get_metadata_fields\n *\n * @param {Function} callback Callback function\n * @param {Object} options Configuration options\n *\n * @return {Object}\n */\nexports.list_metadata_fields = function list_metadata_fields(callback) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n return call_api(\"get\", [\"metadata_fields\"], {}, callback, options);\n};\n\n/**\n * Deletes a metadata field definition.\n *\n * The field should no longer be considered a valid candidate for all other endpoints\n *\n * @see https://cloudinary.com/documentation/admin_api#delete_a_metadata_field_by_external_id\n *\n * @param {String} field_external_id The external id of the field to delete\n * @param {Function} callback Callback function\n * @param {Object} options Configuration options\n *\n * @return {Object}\n */\nexports.delete_metadata_field = function delete_metadata_field(field_external_id, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n return call_api(\"delete\", [\"metadata_fields\", field_external_id], {}, callback, options);\n};\n\n/**\n * Get a metadata field by external id\n *\n * @see https://cloudinary.com/documentation/admin_api#get_a_metadata_field_by_external_id\n *\n * @param {String} external_id The ID of the metadata field to retrieve\n * @param {Function} callback Callback function\n * @param {Object} options Configuration options\n *\n * @return {Object}\n */\nexports.metadata_field_by_field_id = function metadata_field_by_field_id(external_id, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n return call_api(\"get\", [\"metadata_fields\", external_id], {}, callback, options);\n};\n\n/**\n * Updates a metadata field by external id\n *\n * Updates a metadata field definition (partially, no need to pass the entire object) passed as JSON data.\n * See {@link https://cloudinary.com/documentation/admin_api#generic_structure_of_a_metadata_field Generic structure of a metadata field} for details.\n *\n * @see https://cloudinary.com/documentation/admin_api#update_a_metadata_field_by_external_id\n *\n * @param {String} external_id The ID of the metadata field to update\n * @param {Object} field Updated values of metadata field\n * @param {Function} callback Callback function\n * @param {Object} options Configuration options\n *\n * @return {Object}\n */\nexports.update_metadata_field = function update_metadata_field(external_id, field, callback) {\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n\n var params = pickOnlyExistingValues(field, \"external_id\", \"type\", \"label\", \"mandatory\", \"default_value\", \"validation\", \"datasource\");\n options.content_type = \"json\";\n return call_api(\"put\", [\"metadata_fields\", external_id], params, callback, options);\n};\n\n/**\n * Updates a metadata field datasource\n *\n * Updates the datasource of a supported field type (currently only enum and set), passed as JSON data. The\n * update is partial: datasource entries with an existing external_id will be updated and entries with new\n * external_id’s (or without external_id’s) will be appended.\n *\n * @see https://cloudinary.com/documentation/admin_api#update_a_metadata_field_datasource\n *\n * @param {String} field_external_id The ID of the field to update\n * @param {Object} entries_external_id Updated values for datasource\n * @param {Function} callback Callback function\n * @param {Object} options Configuration options\n *\n * @return {Object}\n */\nexports.update_metadata_field_datasource = function update_metadata_field_datasource(field_external_id, entries_external_id, callback) {\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n\n var params = pickOnlyExistingValues(entries_external_id, \"values\");\n options.content_type = \"json\";\n return call_api(\"put\", [\"metadata_fields\", field_external_id, \"datasource\"], params, callback, options);\n};\n\n/**\n * Deletes entries in a metadata field datasource\n *\n * Deletes (blocks) the datasource entries for a specified metadata field definition. Sets the state of the\n * entries to inactive. This is a soft delete, the entries still exist under the hood and can be activated again\n * with the restore datasource entries method.\n *\n * @see https://cloudinary.com/documentation/admin_api#delete_entries_in_a_metadata_field_datasource\n *\n * @param {String} field_external_id The ID of the metadata field\n * @param {Array} entries_external_id An array of IDs of datasource entries to delete\n * @param {Function} callback Callback function\n * @param {Object} options Configuration options\n *\n * @return {Object}\n */\nexports.delete_datasource_entries = function delete_datasource_entries(field_external_id, entries_external_id, callback) {\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n\n options.content_type = \"json\";\n var params = { external_ids: entries_external_id };\n return call_api(\"delete\", [\"metadata_fields\", field_external_id, \"datasource\"], params, callback, options);\n};\n\n/**\n * Restores entries in a metadata field datasource\n *\n * Restores (unblocks) any previously deleted datasource entries for a specified metadata field definition.\n * Sets the state of the entries to active.\n *\n * @see https://cloudinary.com/documentation/admin_api#restore_entries_in_a_metadata_field_datasource\n *\n * @param {String} field_external_id The ID of the metadata field\n * @param {Array} entries_external_id An array of IDs of datasource entries to delete\n * @param {Function} callback Callback function\n * @param {Object} options Configuration options\n *\n * @return {Object}\n */\nexports.restore_metadata_field_datasource = function restore_metadata_field_datasource(field_external_id, entries_external_id, callback) {\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n\n options.content_type = \"json\";\n var params = { external_ids: entries_external_id };\n return call_api(\"post\", [\"metadata_fields\", field_external_id, \"datasource_restore\"], params, callback, options);\n};\n\n/**\n * Sorts metadata field datasource. Currently supports only value\n * @param {String} field_external_id The ID of the metadata field\n * @param {String} sort_by Criteria for the sort. Currently supports only value\n * @param {String} direction Optional (gets either asc or desc)\n * @param {Function} callback Callback function\n * @param {Object} options Configuration options\n *\n * @return {Object}\n */\nexports.order_metadata_field_datasource = function order_metadata_field_datasource(field_external_id, sort_by, direction, callback) {\n var options = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : {};\n\n options.content_type = \"json\";\n var params = { order_by: sort_by, direction: direction };\n return call_api(\"post\", [\"metadata_fields\", field_external_id, \"datasource\", \"order\"], params, callback, options);\n};","\"use strict\";\n\n// eslint-disable-next-line import/order\nvar config = require(\"../config\");\nvar utils = require(\"../utils\");\nvar ensureOption = require('../utils/ensureOption').defaults(config());\nvar execute_request = require('./execute_request');\n\nvar ensurePresenceOf = utils.ensurePresenceOf;\n\n\nfunction call_account_api(method, uri, params, callback, options) {\n ensurePresenceOf({ method, uri });\n var cloudinary = ensureOption(options, \"upload_prefix\", \"https://api.cloudinary.com\");\n var account_id = ensureOption(options, \"account_id\");\n var api_url = [cloudinary, \"v1_1\", \"provisioning\", \"accounts\", account_id].concat(uri).join(\"/\");\n var auth = {\n key: ensureOption(options, \"provisioning_api_key\"),\n secret: ensureOption(options, \"provisioning_api_secret\")\n };\n\n return execute_request(method, params, auth, api_url, callback, options);\n}\n\nmodule.exports = call_account_api;","\"use strict\";\n\n// eslint-disable-next-line import/order\nvar config = require(\"../config\");\nvar utils = require(\"../utils\");\nvar ensureOption = require('../utils/ensureOption').defaults(config());\nvar execute_request = require('./execute_request');\n\nvar ensurePresenceOf = utils.ensurePresenceOf;\n\n\nfunction call_api(method, uri, params, callback, options) {\n ensurePresenceOf({ method, uri });\n var api_url = utils.base_api_url(uri, options);\n var auth = {};\n if (options.oauth_token || config().oauth_token) {\n auth = {\n oauth_token: ensureOption(options, \"oauth_token\")\n };\n } else {\n auth = {\n key: ensureOption(options, \"api_key\"),\n secret: ensureOption(options, \"api_secret\")\n };\n }\n return execute_request(method, params, auth, api_url, callback, options);\n}\n\nmodule.exports = call_api;","'use strict';\n\n// eslint-disable-next-line import/order\nvar config = require(\"../config\");\nvar https = /^http:/.test(config().upload_prefix) ? require('http') : require('https');\nvar querystring = require(\"querystring\");\nvar Q = require('q');\nvar url = require('url');\nvar utils = require(\"../utils\");\nvar ensureOption = require('../utils/ensureOption').defaults(config());\n\nvar extend = utils.extend,\n includes = utils.includes;\n\n\nfunction execute_request(method, params, auth, api_url, callback) {\n var options = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : {};\n\n method = method.toUpperCase();\n var deferred = Q.defer();\n\n var query_params = void 0,\n handle_response = void 0; // declare to user later\n var key = auth.key;\n var secret = auth.secret;\n var oauth_token = auth.oauth_token;\n var content_type = 'application/x-www-form-urlencoded';\n\n if (options.content_type === 'json') {\n query_params = JSON.stringify(params);\n content_type = 'application/json';\n } else {\n query_params = querystring.stringify(params);\n }\n\n if (method === \"GET\") {\n api_url += \"?\" + query_params;\n }\n\n var request_options = url.parse(api_url);\n\n request_options = extend(request_options, {\n method: method,\n headers: {\n 'Content-Type': content_type,\n 'User-Agent': utils.getUserAgent()\n }\n });\n\n if (oauth_token) {\n request_options.headers.Authorization = `Bearer ${oauth_token}`;\n } else {\n request_options.auth = key + \":\" + secret;\n }\n\n if (options.agent != null) {\n request_options.agent = options.agent;\n }\n if (method !== \"GET\") {\n request_options.headers['Content-Length'] = Buffer.byteLength(query_params);\n }\n handle_response = function handle_response(res) {\n if (includes([200, 400, 401, 403, 404, 409, 420, 500], res.statusCode)) {\n var buffer = \"\";\n var error = false;\n res.on(\"data\", function (d) {\n buffer += d;\n return buffer;\n });\n res.on(\"end\", function () {\n var result = void 0;\n if (error) {\n return;\n }\n try {\n result = JSON.parse(buffer);\n } catch (e) {\n result = {\n error: {\n message: \"Server return invalid JSON response. Status Code \" + res.statusCode\n }\n };\n }\n\n if (result.error) {\n result.error.http_code = res.statusCode;\n } else {\n result.rate_limit_allowed = parseInt(res.headers[\"x-featureratelimit-limit\"]);\n result.rate_limit_reset_at = new Date(res.headers[\"x-featureratelimit-reset\"]);\n result.rate_limit_remaining = parseInt(res.headers[\"x-featureratelimit-remaining\"]);\n }\n\n if (result.error) {\n deferred.reject(Object.assign({\n request_options,\n query_params\n }, result));\n } else {\n deferred.resolve(result);\n }\n if (typeof callback === \"function\") {\n callback(result);\n }\n });\n res.on(\"error\", function (e) {\n error = true;\n var err_obj = {\n error: {\n message: e,\n http_code: res.statusCode,\n request_options,\n query_params\n }\n };\n deferred.reject(err_obj.error);\n if (typeof callback === \"function\") {\n callback(err_obj);\n }\n });\n } else {\n var err_obj = {\n error: {\n message: \"Server returned unexpected status code - \" + res.statusCode,\n http_code: res.statusCode,\n request_options,\n query_params\n }\n };\n deferred.reject(err_obj.error);\n if (typeof callback === \"function\") {\n callback(err_obj);\n }\n }\n };\n\n var request = https.request(request_options, handle_response);\n request.on(\"error\", function (e) {\n deferred.reject(e);\n return typeof callback === \"function\" ? callback({ error: e }) : void 0;\n });\n request.setTimeout(ensureOption(options, \"timeout\", 60000));\n if (method !== \"GET\") {\n request.write(query_params);\n }\n request.end();\n return deferred.promise;\n}\n\nmodule.exports = execute_request;","'use strict';\n\n/**\n * Authorization Token\n * @module auth_token\n */\n\nvar crypto = require('crypto');\nvar smart_escape = require('./utils/encoding/smart_escape');\n\nvar unsafe = /([ \"#%&'/:;<=>?@[\\]^`{|}~]+)/g;\n\nfunction digest(message, key) {\n return crypto.createHmac(\"sha256\", Buffer.from(key, \"hex\")).update(message).digest('hex');\n}\n\n/**\n * Escape url using lowercase hex code\n * @param {string} url a url string\n * @return {string} escaped url\n */\nfunction escapeToLower(url) {\n var safeUrl = smart_escape(url, unsafe);\n return safeUrl.replace(/%../g, function (match) {\n return match.toLowerCase();\n });\n}\n\n/**\n * Auth token options\n * @typedef {object} authTokenOptions\n * @property {string} [token_name=\"__cld_token__\"] The name of the token.\n * @property {string} key The secret key required to sign the token.\n * @property {string} ip The IP address of the client.\n * @property {number} start_time=now The start time of the token in seconds from epoch.\n * @property {string} expiration The expiration time of the token in seconds from epoch.\n * @property {string} duration The duration of the token (from start_time).\n * @property {string} acl The ACL for the token.\n * @property {string} url The URL to authentication in case of a URL token.\n *\n */\n\n/**\n * Generate an authorization token\n * @param {authTokenOptions} options\n * @returns {string} the authorization token\n */\nmodule.exports = function (options) {\n var tokenName = options.token_name ? options.token_name : \"__cld_token__\";\n var tokenSeparator = \"~\";\n if (options.expiration == null) {\n if (options.duration != null) {\n var start = options.start_time != null ? options.start_time : Math.round(Date.now() / 1000);\n options.expiration = start + options.duration;\n } else {\n throw new Error(\"Must provide either expiration or duration\");\n }\n }\n var tokenParts = [];\n if (options.ip != null) {\n tokenParts.push(`ip=${options.ip}`);\n }\n if (options.start_time != null) {\n tokenParts.push(`st=${options.start_time}`);\n }\n tokenParts.push(`exp=${options.expiration}`);\n if (options.acl != null) {\n tokenParts.push(`acl=${escapeToLower(options.acl)}`);\n }\n var toSign = [].concat(tokenParts);\n if (options.url != null && options.acl == null) {\n var url = escapeToLower(options.url);\n toSign.push(`url=${url}`);\n }\n var auth = digest(toSign.join(tokenSeparator), options.key);\n tokenParts.push(`hmac=${auth}`);\n\n if (!options.url && !options.acl) {\n throw 'authToken must contain either an acl or a url property';\n }\n\n return `${tokenName}=${tokenParts.join(tokenSeparator)}`;\n};","\"use strict\";\n\nvar _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };\n\nvar _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\n/* eslint-disable class-methods-use-this */\n\nvar CACHE = Symbol.for(\"com.cloudinary.cache\");\nvar CACHE_ADAPTER = Symbol.for(\"com.cloudinary.cacheAdapter\");\n\nvar _require = require('./utils'),\n ensurePresenceOf = _require.ensurePresenceOf,\n generate_transformation_string = _require.generate_transformation_string;\n\n/**\n * The adapter used to communicate with the underlying cache storage\n */\n\n\nvar CacheAdapter = function () {\n function CacheAdapter() {\n _classCallCheck(this, CacheAdapter);\n }\n\n _createClass(CacheAdapter, [{\n key: \"get\",\n\n /**\n * Get a value from the cache\n * @param {string} publicId\n * @param {string} type\n * @param {string} resourceType\n * @param {string} transformation\n * @param {string} format\n * @return {*} the value associated with the provided arguments\n */\n value: function get(publicId, type, resourceType, transformation, format) {}\n\n /**\n * Set a new value in the cache\n * @param {string} publicId\n * @param {string} type\n * @param {string} resourceType\n * @param {string} transformation\n * @param {string} format\n * @param {*} value\n */\n\n }, {\n key: \"set\",\n value: function set(publicId, type, resourceType, transformation, format, value) {}\n\n /**\n * Delete all values in the cache\n */\n\n }, {\n key: \"flushAll\",\n value: function flushAll() {}\n }]);\n\n return CacheAdapter;\n}();\n/**\n * @class Cache\n * Stores and retrieves values identified by publicId / options pairs\n */\n\n\nvar Cache = {\n /**\n * The adapter interface. Extend this class to implement a specific adapter.\n * @type CacheAdapter\n */\n CacheAdapter,\n /**\n * Set the cache adapter\n * @param {CacheAdapter} adapter The cache adapter\n */\n setAdapter(adapter) {\n if (this.adapter) {\n console.warn(\"Overriding existing cache adapter\");\n }\n this.adapter = adapter;\n },\n /**\n * Get the adapter the Cache is using\n * @return {CacheAdapter} the current cache adapter\n */\n getAdapter() {\n return this.adapter;\n },\n /**\n * Get an item from the cache\n * @param {string} publicId\n * @param {object} options\n * @return {*}\n */\n get(publicId, options) {\n if (!this.adapter) {\n return undefined;\n }\n ensurePresenceOf({ publicId });\n var transformation = generate_transformation_string(_extends({}, options));\n return this.adapter.get(publicId, options.type || 'upload', options.resource_type || 'image', transformation, options.format);\n },\n /**\n * Set a new value in the cache\n * @param {string} publicId\n * @param {object} options\n * @param {*} value\n * @return {*}\n */\n set(publicId, options, value) {\n if (!this.adapter) {\n return undefined;\n }\n ensurePresenceOf({ publicId, value });\n var transformation = generate_transformation_string(_extends({}, options));\n return this.adapter.set(publicId, options.type || 'upload', options.resource_type || 'image', transformation, options.format, value);\n },\n /**\n * Clear all items in the cache\n * @return {*} Returns the value from the adapter's flushAll() method\n */\n flushAll() {\n if (!this.adapter) {\n return undefined;\n }\n return this.adapter.flushAll();\n }\n\n};\n\n// Define singleton property\nObject.defineProperty(Cache, \"instance\", {\n get() {\n return global[CACHE];\n }\n});\nObject.defineProperty(Cache, \"adapter\", {\n /**\n *\n * @return {CacheAdapter} The current cache adapter\n */\n get() {\n return global[CACHE_ADAPTER];\n },\n /**\n * Set the cache adapter to be used by Cache\n * @param {CacheAdapter} adapter Cache adapter\n */\n set(adapter) {\n global[CACHE_ADAPTER] = adapter;\n }\n});\nObject.freeze(Cache);\n\n// Instantiate the singleton\nvar symbols = Object.getOwnPropertySymbols(global);\nif (symbols.indexOf(CACHE) < 0) {\n global[CACHE] = Cache;\n}\n\n/**\n * Store key value pairs\n\n */\nmodule.exports = Cache;","\"use strict\";\n\nfunction _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }\n\nvar _ = require('lodash');\nexports.config = require(\"./config\");\nexports.utils = require(\"./utils\");\nexports.uploader = require(\"./uploader\");\nexports.api = require(\"./api\");\nvar account = require(\"./provisioning/account\");\n\nexports.provisioning = {\n account: account\n};\nexports.PreloadedFile = require(\"./preloaded_file\");\nexports.Cache = require('./cache');\n\nvar cloudinary = module.exports;\n\nvar optionConsume = cloudinary.utils.option_consume;\n\nexports.url = function url(public_id, options) {\n options = _.extend({}, options);\n return cloudinary.utils.url(public_id, options);\n};\n\nvar _require = require('./utils/srcsetUtils'),\n generateImageResponsiveAttributes = _require.generateImageResponsiveAttributes,\n generateMediaAttr = _require.generateMediaAttr;\n\n/**\n * Helper function, allows chaining transformation to the end of transformation list\n *\n * @private\n * @param {object} options Original options\n * @param {object|object[]} transformation Transformations to chain at the end\n *\n * @return {object} Resulting options\n */\n\n\nfunction chainTransformations(options) {\n var transformation = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];\n\n // preserve url options\n var urlOptions = cloudinary.utils.extractUrlParams(options);\n var currentTransformation = cloudinary.utils.extractTransformationParams(options);\n transformation = cloudinary.utils.build_array(transformation);\n urlOptions.transformation = [currentTransformation].concat(_toConsumableArray(transformation));\n return urlOptions;\n}\n\n/**\n * Generate an HTML img tag with a Cloudinary URL\n * @param {string} source A Public ID or a URL\n * @param {object} options Configuration options\n * @param {srcset} options.srcset srcset options\n * @param {object} options.attributes HTML attributes\n * @param {number} options.html_width (deprecated) The HTML tag width\n * @param {number} options.html_height (deprecated) The HTML tag height\n * @param {boolean} options.client_hints Don't implement the client side responsive function.\n * This argument can override the the same option in the global configuration.\n * @param {boolean} options.responsive Setup the tag for the client side responsive function.\n * @param {boolean} options.hidpi Setup the tag for the client side auto dpr function.\n * @param {boolean} options.responsive_placeholder A place holder image URL to use with.\n * the client side responsive function\n * @return {string} An HTML img tag\n */\nexports.image = function image(source, options) {\n var localOptions = _.extend({}, options);\n var srcsetParam = optionConsume(localOptions, 'srcset');\n var attributes = optionConsume(localOptions, 'attributes', {});\n var src = cloudinary.utils.url(source, localOptions);\n if (\"html_width\" in localOptions) localOptions.width = optionConsume(localOptions, \"html_width\");\n if (\"html_height\" in localOptions) localOptions.height = optionConsume(localOptions, \"html_height\");\n\n var client_hints = optionConsume(localOptions, \"client_hints\", cloudinary.config().client_hints);\n var responsive = optionConsume(localOptions, \"responsive\");\n var hidpi = optionConsume(localOptions, \"hidpi\");\n\n if ((responsive || hidpi) && !client_hints) {\n localOptions[\"data-src\"] = src;\n var classes = [responsive ? \"cld-responsive\" : \"cld-hidpi\"];\n var current_class = optionConsume(localOptions, \"class\");\n if (current_class) classes.push(current_class);\n localOptions.class = classes.join(\" \");\n src = optionConsume(localOptions, \"responsive_placeholder\", cloudinary.config().responsive_placeholder);\n if (src === \"blank\") {\n src = cloudinary.BLANK;\n }\n }\n var html = \")} [options.source_types] Specify which\n * source type the tag should include. defaults to webm, mp4 and ogv.\n * @param {String} [options.source_transformation] specific transformations\n * to use for a specific source type.\n * @param {(String|Object)} [options.poster] image URL or\n * poster options that may include a public_id key and\n * poster-specific transformations\n * @example Example of generating a video tag: \n * cloudinary.video(\"mymovie.mp4\");\n * cloudinary.video(\"mymovie.mp4\", {source_types: 'webm'});\n * cloudinary.video(\"mymovie.ogv\", {poster: \"myspecialplaceholder.jpg\"});\n * cloudinary.video(\"mymovie.webm\", {source_types: ['webm', 'mp4'], poster: {effect: 'sepia'}});\n * @return {string} HTML video tag\n */\nexports.video = function video(public_id, options) {\n options = _.extend({}, options);\n public_id = public_id.replace(/\\.(mp4|ogv|webm)$/, '');\n var source_types = optionConsume(options, 'source_types', []);\n var source_transformation = optionConsume(options, 'source_transformation', {});\n var sources = optionConsume(options, 'sources', []);\n var fallback = optionConsume(options, 'fallback_content', '');\n\n if (source_types.length === 0) source_types = cloudinary.utils.DEFAULT_VIDEO_SOURCE_TYPES;\n var video_options = _.cloneDeep(options);\n\n if (video_options.hasOwnProperty('poster')) {\n if (_.isPlainObject(video_options.poster)) {\n if (video_options.poster.hasOwnProperty('public_id')) {\n video_options.poster = cloudinary.utils.url(video_options.poster.public_id, video_options.poster);\n } else {\n video_options.poster = cloudinary.utils.url(public_id, _.extend({}, cloudinary.utils.DEFAULT_POSTER_OPTIONS, video_options.poster));\n }\n }\n } else {\n video_options.poster = cloudinary.utils.url(public_id, _.extend({}, cloudinary.utils.DEFAULT_POSTER_OPTIONS, options));\n }\n\n if (!video_options.poster) delete video_options.poster;\n\n var html = ' 1;\n var has_sources = _.isArray(sources) && sources.length > 0;\n var source = public_id;\n if (!multi_source_types && !has_sources) {\n source = source + '.' + cloudinary.utils.build_array(source_types)[0];\n }\n var src = cloudinary.utils.url(source, video_options);\n if (!multi_source_types && !has_sources) video_options.src = src;\n if (video_options.hasOwnProperty(\"html_width\")) video_options.width = optionConsume(video_options, 'html_width');\n if (video_options.hasOwnProperty(\"html_height\")) video_options.height = optionConsume(video_options, 'html_height');\n html = html + cloudinary.utils.html_attrs(video_options) + '>';\n if (multi_source_types && !has_sources) {\n sources = source_types.map(function (source_type) {\n return {\n type: source_type,\n transformations: source_transformation[source_type] || {}\n };\n });\n }\n if (_.isArray(sources) && sources.length > 0) {\n html += sources.map(function (source_data) {\n var source_type = source_data.type;\n var codecs = source_data.codecs;\n var transformation = source_data.transformations || {};\n src = cloudinary.utils.url(source + \".\" + source_type, _.extend({ resource_type: 'video' }, _.cloneDeep(options), _.cloneDeep(transformation)));\n return cloudinary.utils.create_source_tag(src, source_type, codecs);\n }).join('');\n }\n return `${html}${fallback} `;\n};\n\n/**\n * Generate a source tag.\n * @param {string} public_id\n * @param {object} options\n * @param {srcset} options.srcset arguments required to generate the srcset attribute.\n * @param {object} options.attributes HTML tag attributes\n * @return {string}\n */\nexports.source = function source(public_id) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n var srcsetParam = cloudinary.utils.extend({}, options.srcset, cloudinary.config().srcset);\n var attributes = options.attributes || {};\n\n cloudinary.utils.extend(attributes, generateImageResponsiveAttributes(public_id, attributes, srcsetParam, options));\n if (!attributes.srcset) {\n attributes.srcset = cloudinary.url(public_id, options);\n }\n if (!attributes.media && options.media) {\n attributes.media = generateMediaAttr(options.media);\n }\n return ``;\n};\n\n/**\n * Generate a picture HTML tag.\" + sources.map(function (source) {\n var sourceOptions = chainTransformations(options, source.transformation);\n sourceOptions.media = source;\n return cloudinary.source(public_id, sourceOptions);\n }).join('') + cloudinary.image(public_id, options) + \" \";\n};\n\nexports.cloudinary_js_config = cloudinary.utils.cloudinary_js_config;\nexports.CF_SHARED_CDN = cloudinary.utils.CF_SHARED_CDN;\nexports.AKAMAI_SHARED_CDN = cloudinary.utils.AKAMAI_SHARED_CDN;\nexports.SHARED_CDN = cloudinary.utils.SHARED_CDN;\nexports.BLANK = \"data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\";\nexports.v2 = require('./v2');","\"use strict\";\n\nvar _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i[\"return\"]) _i[\"return\"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError(\"Invalid attempt to destructure non-iterable instance\"); } }; }();\n\n/**\n * Assign a value to a nested object\n * @function putNestedValue\n * @param params the parent object - this argument will be modified!\n * @param key key in the form nested[innerkey]\n * @param value the value to assign\n * @return the modified params object\n */\nvar url = require('url');\nvar extend = require(\"lodash/extend\");\nvar isObject = require(\"lodash/isObject\");\nvar isString = require(\"lodash/isString\");\nvar isUndefined = require(\"lodash/isUndefined\");\nvar entries = require('./utils/entries');\n\nvar cloudinary_config = void 0;\n\n/**\n * Sets a value in an object using a nested key\n * @param {object} params The object to assign the value in.\n * @param {string} key The key of the value. A period is used to denote inner keys.\n * @param {*} value The value to set.\n * @returns {object} The params argument.\n * @example\n * let o = {foo: {bar: 1}};\n * putNestedValue(o, 'foo.bar', 2); // {foo: {bar: 2}}\n * putNestedValue(o, 'foo.inner.key', 'this creates an inner object');\n * // {{foo: {bar: 2}, inner: {key: 'this creates an inner object'}}}\n */\nfunction putNestedValue(params, key, value) {\n var chain = key.split(/[\\[\\]]+/).filter(function (i) {\n return i.length;\n });\n var outer = params;\n var lastKey = chain.pop();\n for (var j = 0; j < chain.length; j++) {\n var innerKey = chain[j];\n var inner = outer[innerKey];\n if (inner == null) {\n inner = {};\n outer[innerKey] = inner;\n }\n outer = inner;\n }\n outer[lastKey] = value;\n return params;\n}\n\nfunction parseCloudinaryConfigFromEnvURL(ENV_STR) {\n var conf = {};\n\n var uri = url.parse(ENV_STR, true);\n\n if (uri.protocol === 'cloudinary:') {\n conf = Object.assign({}, conf, {\n cloud_name: uri.host,\n api_key: uri.auth && uri.auth.split(\":\")[0],\n api_secret: uri.auth && uri.auth.split(\":\")[1],\n private_cdn: uri.pathname != null,\n secure_distribution: uri.pathname && uri.pathname.substring(1)\n });\n } else if (uri.protocol === 'account:') {\n conf = Object.assign({}, conf, {\n account_id: uri.host,\n provisioning_api_key: uri.auth && uri.auth.split(\":\")[0],\n provisioning_api_secret: uri.auth && uri.auth.split(\":\")[1]\n });\n }\n\n return conf;\n}\n\nfunction extendCloudinaryConfigFromQuery(ENV_URL) {\n var confToExtend = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n var uri = url.parse(ENV_URL, true);\n if (uri.query != null) {\n entries(uri.query).forEach(function (_ref) {\n var _ref2 = _slicedToArray(_ref, 2),\n key = _ref2[0],\n value = _ref2[1];\n\n return putNestedValue(confToExtend, key, value);\n });\n }\n}\n\nfunction extendCloudinaryConfig(parsedConfig) {\n var confToExtend = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n entries(parsedConfig).forEach(function (_ref3) {\n var _ref4 = _slicedToArray(_ref3, 2),\n key = _ref4[0],\n value = _ref4[1];\n\n if (value !== undefined) {\n confToExtend[key] = value;\n }\n });\n\n return confToExtend;\n}\n\nmodule.exports = function (new_config, new_value) {\n if (cloudinary_config == null || new_config === true) {\n if (cloudinary_config == null) {\n cloudinary_config = {};\n } else {\n Object.keys(cloudinary_config).forEach(function (key) {\n return delete cloudinary_config[key];\n });\n }\n\n var CLOUDINARY_ENV_URL = process.env.CLOUDINARY_URL;\n var CLOUDINARY_ENV_ACCOUNT_URL = process.env.CLOUDINARY_ACCOUNT_URL;\n\n if (CLOUDINARY_ENV_URL && !CLOUDINARY_ENV_URL.toLowerCase().startsWith('cloudinary://')) {\n throw new Error(\"Invalid CLOUDINARY_URL protocol. URL should begin with 'cloudinary://'\");\n }\n if (CLOUDINARY_ENV_ACCOUNT_URL && !CLOUDINARY_ENV_ACCOUNT_URL.toLowerCase().startsWith('account://')) {\n throw new Error(\"Invalid CLOUDINARY_ACCOUNT_URL protocol. URL should begin with 'account://'\");\n }\n\n [CLOUDINARY_ENV_URL, CLOUDINARY_ENV_ACCOUNT_URL].forEach(function (ENV_URL) {\n if (ENV_URL) {\n var parsedConfig = parseCloudinaryConfigFromEnvURL(ENV_URL);\n extendCloudinaryConfig(parsedConfig, cloudinary_config);\n // Provide Query support in ENV url cloudinary://key:secret@test123?foo[bar]=value\n // expect(cloudinary_config.foo.bar).to.eql('value')\n extendCloudinaryConfigFromQuery(ENV_URL, cloudinary_config);\n }\n });\n }\n if (!isUndefined(new_value)) {\n cloudinary_config[new_config] = new_value;\n } else if (isString(new_config)) {\n return cloudinary_config[new_config];\n } else if (isObject(new_config)) {\n extend(cloudinary_config, new_config);\n }\n return cloudinary_config;\n};","\"use strict\";\n\nvar _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nvar PRELOADED_CLOUDINARY_PATH = void 0,\n config = void 0,\n utils = void 0;\n\nutils = require(\"./utils\");\n\nconfig = require(\"./config\");\n\nPRELOADED_CLOUDINARY_PATH = /^([^\\/]+)\\/([^\\/]+)\\/v(\\d+)\\/([^#]+)#([^\\/]+)$/;\n\nvar PreloadedFile = function () {\n function PreloadedFile(file_info) {\n _classCallCheck(this, PreloadedFile);\n\n var matches = void 0,\n public_id_and_format = void 0;\n matches = file_info.match(PRELOADED_CLOUDINARY_PATH);\n if (!matches) {\n throw \"Invalid preloaded file info\";\n }\n this.resource_type = matches[1];\n this.type = matches[2];\n this.version = matches[3];\n this.filename = matches[4];\n this.signature = matches[5];\n public_id_and_format = PreloadedFile.split_format(this.filename);\n this.public_id = public_id_and_format[0];\n this.format = public_id_and_format[1];\n }\n\n _createClass(PreloadedFile, [{\n key: \"is_valid\",\n value: function is_valid() {\n var expected_signature = void 0;\n expected_signature = utils.api_sign_request({\n public_id: this.public_id,\n version: this.version\n }, config().api_secret);\n return this.signature === expected_signature;\n }\n }, {\n key: \"identifier\",\n value: function identifier() {\n return `v${this.version}/${this.filename}`;\n }\n }, {\n key: \"toString\",\n value: function toString() {\n return `${this.resource_type}/${this.type}/v${this.version}/${this.filename}#${this.signature}`;\n }\n }, {\n key: \"toJSON\",\n value: function toJSON() {\n var _this = this;\n\n var result = {};\n Object.getOwnPropertyNames(this).forEach(function (key) {\n var val = _this[key];\n if (typeof val !== 'function') {\n result[key] = val;\n }\n });\n return result;\n }\n }], [{\n key: \"split_format\",\n value: function split_format(identifier) {\n var format = void 0,\n last_dot = void 0,\n public_id = void 0;\n last_dot = identifier.lastIndexOf(\".\");\n if (last_dot === -1) {\n return [identifier, null];\n }\n public_id = identifier.substr(0, last_dot);\n format = identifier.substr(last_dot + 1);\n return [public_id, format];\n }\n }]);\n\n return PreloadedFile;\n}();\n\nmodule.exports = PreloadedFile;","'use strict';\n\nvar utils = require(\"../utils\");\nvar call_account_api = require('../api_client/call_account_api');\n\nvar pickOnlyExistingValues = utils.pickOnlyExistingValues;\n\n/**\n * @desc Lists sub-accounts.\n * @param [enabled] {boolean} - Whether to only return enabled sub-accounts (true) or disabled accounts (false).\n * Default: all accounts are returned (both enabled and disabled).\n * @param [ids] {number[]} - A list of up to 100 sub-account IDs. When provided, other parameters are ignored.\n * @param [prefix] {string} - Returns accounts where the name begins with the specified case-insensitive string.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\n\nfunction sub_accounts(enabled) {\n var ids = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];\n var prefix = arguments[2];\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n var callback = arguments[4];\n\n var params = {\n enabled,\n ids,\n prefix\n };\n\n var uri = ['sub_accounts'];\n return call_account_api('GET', uri, params, callback, options);\n}\n\n/**\n * @desc Retrieves the details of the specified sub-account.\n * @param sub_account_id {string} - The ID of the sub-account.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction sub_account(sub_account_id) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var callback = arguments[2];\n\n var uri = ['sub_accounts', sub_account_id];\n return call_account_api('GET', uri, {}, callback, options);\n}\n\n/**\n * @desc Creates a new sub-account. Any users that have access to all sub-accounts will also automatically have access\n * to the new sub-account.\n * @param name {string} The display name as shown in the management console.\n * @param cloud_name {string} A case-insensitive cloud name comprised of alphanumeric and underscore characters.\n * Generates an error if the specified cloud name is not unique across all Cloudinary\n * accounts. Note: Once created, the name can only be changed for accounts with fewer than\n * 1000 assets.\n * @param custom_attributes {object} Any custom attributes you want to associate with the sub-account, as a map/hash of\n * key/value pairs.\n * @param enabled {boolean} Whether the sub-account is enabled. Default: true\n * @param base_account {string} The ID of another sub-account, from which to copy all of the following settings:\n * Size limits, Timed limits, and Flags.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param callback\n */\nfunction create_sub_account(name, cloud_name, custom_attributes, enabled, base_account) {\n var options = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : {};\n var callback = arguments[6];\n\n var params = {\n cloud_name: cloud_name,\n name,\n custom_attributes: custom_attributes,\n enabled,\n base_sub_account_id: base_account\n };\n\n options.content_type = \"json\";\n var uri = ['sub_accounts'];\n return call_account_api('POST', uri, params, callback, options);\n}\n\n/**\n * @desc Deletes the specified sub-account. Supported only for accounts with fewer than 1000 assets.\n * @param sub_account_id {string} - The ID of the sub-account to delete.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction delete_sub_account(sub_account_id) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var callback = arguments[2];\n\n var uri = ['sub_accounts', sub_account_id];\n return call_account_api('DELETE', uri, {}, callback, options);\n}\n\n/**\n * @desc Updates the specified details of the sub-account.\n * @param sub_account_id {string} - The ID of the sub-account.\n * @param [name] {string} - The display name as shown in the management console.\n * @param [cloud_name] {string} - A new cloud name for the account.\n * Notes:\n * - Can only be changed for accounts with fewer than 1000 assets.\n * - generates an error if the cloud name is not unique across all Cloudinary accounts.\n * @param [custom_attributes] {object} - Any custom attributes you want to associate with the sub-account, as a map/hash\n * of key/value pairs.\n * @param [enabled] {boolean} - Whether the sub-account is enabled.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction update_sub_account(sub_account_id, name, cloud_name, custom_attributes, enabled) {\n var options = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : {};\n var callback = arguments[6];\n\n var params = {\n cloud_name: cloud_name,\n name,\n custom_attributes: custom_attributes,\n enabled\n };\n\n options.content_type = \"json\";\n var uri = ['sub_accounts', sub_account_id];\n return call_account_api('PUT', uri, params, callback, options);\n}\n\n/**\n * @desc Returns the user with the specified ID.\n * @param user_id {string} - The ID of the user.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction user(user_id) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var callback = arguments[2];\n\n var uri = ['users', user_id];\n return call_account_api('GET', uri, {}, callback, options);\n}\n\n/**\n * @desc Lists users in the account.\n * @param [pending] {boolean} - Limit results to pending users (true), users that are not pending (false), or all users (undefined, the default)\n * @param [user_ids] {string[]} - A list of up to 100 user IDs. When provided, other parameters are ignored.\n * @param [prefix] {string} - Returns users where the name or email address begins with the specified case-insensitive\n * string.\n * @param [sub_account_id[ {string} - Only returns users who have access to the specified account.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction users(pending, user_ids, prefix, sub_account_id) {\n var options = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : {};\n var callback = arguments[5];\n\n var uri = ['users'];\n var params = {\n ids: user_ids,\n pending,\n prefix,\n sub_account_id\n };\n return call_account_api('GET', uri, pickOnlyExistingValues(params, \"ids\", \"pending\", \"prefix\", \"sub_account_id\"), callback, options);\n}\n\n/**\n * @desc Creates a new user in the account.\n * @param name {string} - The name of the user.\n * @param email {string} - A unique email address, which serves as the login name and notification address.\n * @param role {string} - The role to assign. Possible values: master_admin, admin, billing, technical_admin, reports,\n * media_library_admin, media_library_user\n * @param [sub_account_ids] {string[]} - The list of sub-account IDs that this user can access.\n * Note: This parameter is ignored if the role is specified as master_admin.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction create_user(name, email, role, sub_account_ids) {\n var options = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : {};\n var callback = arguments[5];\n\n var uri = ['users'];\n var params = {\n name,\n email,\n role,\n sub_account_ids: sub_account_ids\n };\n options.content_type = 'json';\n return call_account_api('POST', uri, params, callback, options);\n}\n\n/**\n * @desc Updates the details of the specified user.\n * @param user_id {string} - The ID of the user to update.\n * @param [name] {string} - The name of the user.\n * @param [email] {string} - A unique email address, which serves as the login name and notification address.\n * @param [role] {string} - The role to assign. Possible values: master_admin, admin, billing, technical_admin, reports,\n * media_library_admin, media_library_user\n * @param [sub_account_ids] {string[]} - The list of sub-account IDs that this user can access.\n * Note: This parameter is ignored if the role is specified as master_admin.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction update_user(user_id, name, email, role, sub_account_ids) {\n var options = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : {};\n var callback = arguments[6];\n\n var uri = ['users', user_id];\n var params = {\n name,\n email,\n role,\n sub_account_ids: sub_account_ids\n };\n options.content_type = 'json';\n return call_account_api('PUT', uri, params, callback, options);\n}\n\n/**\n * @desc Deletes an existing user.\n * @param user_id {string} - The ID of the user to delete.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction delete_user(user_id) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var callback = arguments[2];\n\n var uri = ['users', user_id];\n return call_account_api('DELETE', uri, {}, callback, options);\n}\n\n/**\n * @desc Creates a new user group.\n * @param name {string} - The name for the user group.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction create_user_group(name) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var callback = arguments[2];\n\n var uri = ['user_groups'];\n options.content_type = 'json';\n var params = {\n name\n };\n return call_account_api('POST', uri, params, callback, options);\n}\n\n/**\n * @desc Updates the specified user group.\n * @param group_id {string} The ID of the user group to update.\n * @param name {string} - The name for the user group.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction update_user_group(group_id, name) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n var callback = arguments[3];\n\n var uri = ['user_groups', group_id];\n var params = {\n name\n };\n return call_account_api('PUT', uri, params, callback, options);\n}\n\n/**\n * @desc Deletes the user group with the specified ID.\n * @param group_id {string} The ID of the user group to delete.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction delete_user_group(group_id) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var callback = arguments[2];\n\n var uri = ['user_groups', group_id];\n return call_account_api('DELETE', uri, {}, callback, options);\n}\n\n/**\n * @desc Adds a user to a group with the specified ID.\n * @param group_id {string} - The ID of the user group.\n * @param user_id {string} - The ID of the user.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction add_user_to_group(group_id, user_id) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n var callback = arguments[3];\n\n var uri = ['user_groups', group_id, 'users', user_id];\n return call_account_api('POST', uri, {}, callback, options);\n}\n\n/**\n * @desc Removes a user from a group with the specified ID.\n * @param group_id {string} - The ID of the user group.\n * @param user_id {string} - The ID of the user.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction remove_user_from_group(group_id, user_id) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n var callback = arguments[3];\n\n var uri = ['user_groups', group_id, 'users', user_id];\n return call_account_api('DELETE', uri, {}, callback, options);\n}\n\n/**\n * @desc Retrieves the details of the specified user group.\n * @param group_id {string} - The ID of the user group to retrieve.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction user_group(group_id) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var callback = arguments[2];\n\n var uri = ['user_groups', group_id];\n return call_account_api('GET', uri, {}, callback, options);\n}\n\n/**\n * @desc Lists user groups in the account.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction user_groups() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n var callback = arguments[1];\n\n var uri = ['user_groups'];\n return call_account_api('GET', uri, {}, callback, options);\n}\n\n/**\n * @desc Lists users in the specified user group.\n * @param group_id {string} - The ID of the user group.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction user_group_users(group_id) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var callback = arguments[2];\n\n var uri = ['user_groups', group_id, 'users'];\n return call_account_api('GET', uri, {}, callback, options);\n}\n\nmodule.exports = {\n sub_accounts,\n create_sub_account,\n delete_sub_account,\n sub_account,\n update_sub_account,\n user,\n users,\n user_group,\n user_groups,\n user_group_users,\n remove_user_from_group,\n delete_user,\n update_user_group,\n update_user,\n create_user,\n create_user_group,\n add_user_to_group,\n delete_user_group\n};","\"use strict\";\n\nvar _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nfunction _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return call && (typeof call === \"object\" || typeof call === \"function\") ? call : self; }\n\nfunction _inherits(subClass, superClass) { if (typeof superClass !== \"function\" && superClass !== null) { throw new TypeError(\"Super expression must either be null or a function, not \" + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }\n\nvar Transform = require(\"stream\").Transform;\n\nvar UploadStream = function (_Transform) {\n _inherits(UploadStream, _Transform);\n\n function UploadStream(options) {\n _classCallCheck(this, UploadStream);\n\n var _this = _possibleConstructorReturn(this, (UploadStream.__proto__ || Object.getPrototypeOf(UploadStream)).call(this));\n\n _this.boundary = options.boundary;\n return _this;\n }\n\n _createClass(UploadStream, [{\n key: \"_transform\",\n value: function _transform(data, encoding, next) {\n var buffer = Buffer.isBuffer(data) ? data : Buffer.from(data, encoding);\n this.push(buffer);\n next();\n }\n }, {\n key: \"_flush\",\n value: function _flush(next) {\n this.push(Buffer.from(\"\\r\\n\", 'ascii'));\n this.push(Buffer.from(\"--\" + this.boundary + \"--\", 'ascii'));\n return next();\n }\n }]);\n\n return UploadStream;\n}(Transform);\n\nmodule.exports = UploadStream;","'use strict';\n\nvar _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i[\"return\"]) _i[\"return\"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError(\"Invalid attempt to destructure non-iterable instance\"); } }; }();\n\nvar _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };\n\nvar _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nfunction _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return call && (typeof call === \"object\" || typeof call === \"function\") ? call : self; }\n\nfunction _inherits(subClass, superClass) { if (typeof superClass !== \"function\" && superClass !== null) { throw new TypeError(\"Super expression must either be null or a function, not \" + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }\n\nvar fs = require('fs');\n\nvar _require = require('path'),\n extname = _require.extname,\n basename = _require.basename;\n\nvar Q = require('q');\nvar Writable = require(\"stream\").Writable;\nvar urlLib = require('url');\n\n// eslint-disable-next-line import/order\n\nvar _require2 = require(\"./config\")(),\n upload_prefix = _require2.upload_prefix;\n\nvar isSecure = !(upload_prefix && upload_prefix.slice(0, 5) === 'http:');\nvar https = isSecure ? require('https') : require('http');\n\nvar Cache = require('./cache');\nvar utils = require(\"./utils\");\nvar UploadStream = require('./upload_stream');\nvar config = require(\"./config\");\nvar ensureOption = require('./utils/ensureOption').defaults(config());\n\nvar build_upload_params = utils.build_upload_params,\n extend = utils.extend,\n includes = utils.includes,\n isObject = utils.isObject,\n isRemoteUrl = utils.isRemoteUrl,\n merge = utils.merge,\n pickOnlyExistingValues = utils.pickOnlyExistingValues;\n\n\nexports.unsigned_upload_stream = function unsigned_upload_stream(upload_preset, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n return exports.upload_stream(callback, merge(options, {\n unsigned: true,\n upload_preset: upload_preset\n }));\n};\n\nexports.upload_stream = function upload_stream(callback) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n return exports.upload(null, callback, extend({\n stream: true\n }, options));\n};\n\nexports.unsigned_upload = function unsigned_upload(file, upload_preset, callback) {\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n\n return exports.upload(file, callback, merge(options, {\n unsigned: true,\n upload_preset: upload_preset\n }));\n};\n\nexports.upload = function upload(file, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n return call_api(\"upload\", callback, options, function () {\n var params = build_upload_params(options);\n return isRemoteUrl(file) ? [params, { file: file }] : [params, {}, file];\n });\n};\n\nexports.upload_large = function upload_large(path, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n if (path != null && isRemoteUrl(path)) {\n // upload a remote file\n return exports.upload(path, callback, options);\n }\n if (path != null && !options.filename) {\n options.filename = path.split(/(\\\\|\\/)/g).pop().replace(/\\.[^/.]+$/, \"\");\n }\n return exports.upload_chunked(path, callback, extend({\n resource_type: 'raw'\n }, options));\n};\n\nexports.upload_chunked = function upload_chunked(path, callback, options) {\n var file_reader = fs.createReadStream(path);\n var out_stream = exports.upload_chunked_stream(callback, options);\n return file_reader.pipe(out_stream);\n};\n\nvar Chunkable = function (_Writable) {\n _inherits(Chunkable, _Writable);\n\n function Chunkable(options) {\n _classCallCheck(this, Chunkable);\n\n var _this = _possibleConstructorReturn(this, (Chunkable.__proto__ || Object.getPrototypeOf(Chunkable)).call(this, options));\n\n _this.chunk_size = options.chunk_size != null ? options.chunk_size : 20000000;\n _this.buffer = Buffer.alloc(0);\n _this.active = true;\n _this.on('finish', function () {\n if (_this.active) {\n _this.emit('ready', _this.buffer, true, function () {});\n }\n });\n return _this;\n }\n\n _createClass(Chunkable, [{\n key: '_write',\n value: function _write(data, encoding, done) {\n var _this2 = this;\n\n if (!this.active) {\n done();\n }\n if (this.buffer.length + data.length <= this.chunk_size) {\n this.buffer = Buffer.concat([this.buffer, data], this.buffer.length + data.length);\n done();\n } else {\n var grab = this.chunk_size - this.buffer.length;\n this.buffer = Buffer.concat([this.buffer, data.slice(0, grab)], this.buffer.length + grab);\n this.emit('ready', this.buffer, false, function (active) {\n _this2.active = active;\n if (_this2.active) {\n _this2.buffer = data.slice(grab);\n done();\n }\n });\n }\n }\n }]);\n\n return Chunkable;\n}(Writable);\n\nexports.upload_large_stream = function upload_large_stream(_unused_, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n return exports.upload_chunked_stream(callback, extend({\n resource_type: 'raw'\n }, options));\n};\n\nexports.upload_chunked_stream = function upload_chunked_stream(callback) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n options = extend({}, options, {\n stream: true\n });\n options.x_unique_upload_id = utils.random_public_id();\n var params = build_upload_params(options);\n var chunk_size = options.chunk_size != null ? options.chunk_size : options.part_size;\n var chunker = new Chunkable({\n chunk_size: chunk_size\n });\n var sent = 0;\n chunker.on('ready', function (buffer, is_last, done) {\n var chunk_start = sent;\n sent += buffer.length;\n options.content_range = `bytes ${chunk_start}-${sent - 1}/${is_last ? sent : -1}`;\n params.timestamp = utils.timestamp();\n var finished_part = function finished_part(result) {\n var errorOrLast = result.error != null || is_last;\n if (errorOrLast && typeof callback === \"function\") {\n callback(result);\n }\n return done(!errorOrLast);\n };\n var stream = call_api(\"upload\", finished_part, options, function () {\n return [params, {}, buffer];\n });\n return stream.write(buffer, 'buffer', function () {\n return stream.end();\n });\n });\n return chunker;\n};\n\nexports.explicit = function explicit(public_id, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n return call_api(\"explicit\", callback, options, function () {\n return utils.build_explicit_api_params(public_id, options);\n });\n};\n\n// Creates a new archive in the server and returns information in JSON format\nexports.create_archive = function create_archive(callback) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var target_format = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;\n\n return call_api(\"generate_archive\", callback, options, function () {\n var opt = utils.archive_params(options);\n if (target_format) {\n opt.target_format = target_format;\n }\n return [opt];\n });\n};\n\n// Creates a new zip archive in the server and returns information in JSON format\nexports.create_zip = function create_zip(callback) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n return exports.create_archive(callback, options, \"zip\");\n};\n\nexports.create_slideshow = function create_slideshow(options, callback) {\n options.resource_type = ensureOption(options, \"resource_type\", \"video\");\n return call_api(\"create_slideshow\", callback, options, function () {\n // Generate a transformation from the manifest_transformation key, which should be a valid transformation\n var manifest_transformation = utils.generate_transformation_string(extend({}, options.manifest_transformation));\n\n // Try to use {options.transformation} to generate a transformation (Example: options.transformation.width, options.transformation.height)\n var transformation = utils.generate_transformation_string(extend({}, ensureOption(options, 'transformation', {})));\n\n return [{\n timestamp: utils.timestamp(),\n manifest_transformation: manifest_transformation,\n upload_preset: options.upload_preset,\n overwrite: options.overwrite,\n public_id: options.public_id,\n notification_url: options.notification_url,\n manifest_json: options.manifest_json,\n tags: options.tags,\n transformation: transformation\n }];\n });\n};\n\nexports.destroy = function destroy(public_id, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n return call_api(\"destroy\", callback, options, function () {\n return [{\n timestamp: utils.timestamp(),\n type: options.type,\n invalidate: options.invalidate,\n public_id: public_id\n }];\n });\n};\n\nexports.rename = function rename(from_public_id, to_public_id, callback) {\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n\n return call_api(\"rename\", callback, options, function () {\n return [{\n timestamp: utils.timestamp(),\n type: options.type,\n from_public_id: from_public_id,\n to_public_id: to_public_id,\n overwrite: options.overwrite,\n invalidate: options.invalidate,\n to_type: options.to_type\n }];\n });\n};\n\nvar TEXT_PARAMS = [\"public_id\", \"font_family\", \"font_size\", \"font_color\", \"text_align\", \"font_weight\", \"font_style\", \"background\", \"opacity\", \"text_decoration\", \"font_hinting\", \"font_antialiasing\"];\n\nexports.text = function text(content, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n return call_api(\"text\", callback, options, function () {\n var textParams = pickOnlyExistingValues.apply(undefined, [options].concat(TEXT_PARAMS));\n var params = _extends({\n timestamp: utils.timestamp(),\n text: content\n }, textParams);\n\n return [params];\n });\n};\n\n/**\n * Generate a sprite by merging multiple images into a single large image for reducing network overhead and bypassing\n * download limitations.\n *\n * The process produces 2 files as follows:\n * - A single image file containing all the images with the specified tag (PNG by default).\n * - A CSS file that includes the style class names and the location of the individual images in the sprite.\n *\n * @param {String|Object} tag A string specifying a tag that indicates which images to include or an object\n * which includes options and image URLs.\n * @param {Function} callback Callback function\n * @param {Object} options Configuration options. If options are passed as the first parameter, this parameter\n * should be empty\n *\n * @return {Object}\n */\nexports.generate_sprite = function generate_sprite(tag, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n return call_api(\"sprite\", callback, options, function () {\n return [utils.build_multi_and_sprite_params(tag, options)];\n });\n};\n\n/**\n * Returns a signed url to download a sprite\n *\n * @param {String|Object} tag A string specifying a tag that indicates which images to include or an object\n * which includes options and image URLs.\n * @param {Object} options Configuration options. If options are passed as the first parameter, this parameter\n * should be empty\n *\n * @returns {string}\n */\nexports.download_generated_sprite = function download_generated_sprite(tag) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n return utils.api_download_url(\"sprite\", utils.build_multi_and_sprite_params(tag, options), options);\n};\n\n/**\n * Returns a signed url to download a single animated image (GIF, PNG or WebP), video (MP4 or WebM) or a single PDF from\n * multiple image assets.\n *\n * @param {String|Object} tag A string specifying a tag that indicates which images to include or an object\n * which includes options and image URLs.\n * @param {Object} options Configuration options. If options are passed as the first parameter, this parameter\n * should be empty\n *\n * @returns {string}\n */\nexports.download_multi = function download_multi(tag) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n return utils.api_download_url(\"multi\", utils.build_multi_and_sprite_params(tag, options), options);\n};\n\n/**\n * Creates either a single animated image (GIF, PNG or WebP), video (MP4 or WebM) or a single PDF from multiple image\n * assets.\n *\n * Each asset is included as a single frame of the resulting animated image/video, or a page of the PDF (sorted\n * alphabetically by their Public ID).\n *\n * @param {String|Object} tag A string specifying a tag that indicates which images to include or an object\n * which includes options and image URLs.\n * @param {Function} callback Callback function\n * @param {Object} options Configuration options. If options are passed as the first parameter, this parameter\n * should be empty\n *\n * @return {Object}\n */\nexports.multi = function multi(tag, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n return call_api(\"multi\", callback, options, function () {\n return [utils.build_multi_and_sprite_params(tag, options)];\n });\n};\n\nexports.explode = function explode(public_id, callback) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n return call_api(\"explode\", callback, options, function () {\n var transformation = utils.generate_transformation_string(extend({}, options));\n return [{\n timestamp: utils.timestamp(),\n public_id: public_id,\n transformation: transformation,\n format: options.format,\n type: options.type,\n notification_url: options.notification_url\n }];\n });\n};\n\n/**\n *\n * @param {String} tag The tag or tags to assign. Can specify multiple\n * tags in a single string, separated by commas - \"t1,t2,t3,t4,t5,t6,t7,t8,t9,t10,t11\".\n *\n * @param {Array} public_ids A list of public IDs (up to 1000) of assets uploaded to Cloudinary.\n *\n * @param {Function} callback Callback function\n *\n * @param {Object} options Configuration options may include 'exclusive' (boolean) which causes\n * clearing this tag from all other resources\n * @return {Object}\n */\nexports.add_tag = function add_tag(tag) {\n var public_ids = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];\n var callback = arguments[2];\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n\n var exclusive = utils.option_consume(\"exclusive\", options);\n var command = exclusive ? \"set_exclusive\" : \"add\";\n return call_tags_api(tag, command, public_ids, callback, options);\n};\n\n/**\n * @param {String} tag The tag or tags to remove. Can specify multiple\n * tags in a single string, separated by commas - \"t1,t2,t3,t4,t5,t6,t7,t8,t9,t10,t11\".\n *\n * @param {Array} public_ids A list of public IDs (up to 1000) of assets uploaded to Cloudinary.\n *\n * @param {Function} callback Callback function\n *\n * @param {Object} options Configuration options may include 'exclusive' (boolean) which causes\n * clearing this tag from all other resources\n * @return {Object}\n */\nexports.remove_tag = function remove_tag(tag) {\n var public_ids = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];\n var callback = arguments[2];\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n\n return call_tags_api(tag, \"remove\", public_ids, callback, options);\n};\n\nexports.remove_all_tags = function remove_all_tags() {\n var public_ids = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];\n var callback = arguments[1];\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n return call_tags_api(null, \"remove_all\", public_ids, callback, options);\n};\n\nexports.replace_tag = function replace_tag(tag) {\n var public_ids = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];\n var callback = arguments[2];\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n\n return call_tags_api(tag, \"replace\", public_ids, callback, options);\n};\n\nfunction call_tags_api(tag, command) {\n var public_ids = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : [];\n var callback = arguments[3];\n var options = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : {};\n\n return call_api(\"tags\", callback, options, function () {\n var params = {\n timestamp: utils.timestamp(),\n public_ids: utils.build_array(public_ids),\n command: command,\n type: options.type\n };\n if (tag != null) {\n params.tag = tag;\n }\n return [params];\n });\n}\n\nexports.add_context = function add_context(context) {\n var public_ids = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];\n var callback = arguments[2];\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n\n return call_context_api(context, 'add', public_ids, callback, options);\n};\n\nexports.remove_all_context = function remove_all_context() {\n var public_ids = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];\n var callback = arguments[1];\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n return call_context_api(null, 'remove_all', public_ids, callback, options);\n};\n\nfunction call_context_api(context, command) {\n var public_ids = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : [];\n var callback = arguments[3];\n var options = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : {};\n\n return call_api('context', callback, options, function () {\n var params = {\n timestamp: utils.timestamp(),\n public_ids: utils.build_array(public_ids),\n command: command,\n type: options.type\n };\n if (context != null) {\n params.context = utils.encode_context(context);\n }\n return [params];\n });\n}\n\n/**\n * Cache (part of) the upload results.\n * @param result\n * @param {object} options\n * @param {string} options.type\n * @param {string} options.resource_type\n */\nfunction cacheResults(result, _ref) {\n var type = _ref.type,\n resource_type = _ref.resource_type;\n\n if (result.responsive_breakpoints) {\n result.responsive_breakpoints.forEach(function (_ref2) {\n var transformation = _ref2.transformation,\n url = _ref2.url,\n breakpoints = _ref2.breakpoints;\n return Cache.set(result.public_id, { type, resource_type, raw_transformation: transformation, format: extname(breakpoints[0].url).slice(1) }, breakpoints.map(function (i) {\n return i.width;\n }));\n });\n }\n}\n\nfunction parseResult(buffer, res) {\n var result = '';\n try {\n result = JSON.parse(buffer);\n if (result.error && !result.error.name) {\n result.error.name = \"Error\";\n }\n } catch (jsonError) {\n result = {\n error: {\n message: `Server return invalid JSON response. Status Code ${res.statusCode}. ${jsonError}`,\n name: \"Error\"\n }\n };\n }\n return result;\n}\n\nfunction call_api(action, callback, options, get_params) {\n if (typeof callback !== \"function\") {\n callback = function callback() {};\n }\n\n var USE_PROMISES = !options.disable_promises;\n\n var deferred = Q.defer();\n if (options == null) {\n options = {};\n }\n\n var _get_params$call = get_params.call(),\n _get_params$call2 = _slicedToArray(_get_params$call, 3),\n params = _get_params$call2[0],\n unsigned_params = _get_params$call2[1],\n file = _get_params$call2[2];\n\n params = utils.process_request_params(params, options);\n params = extend(params, unsigned_params);\n var api_url = utils.api_url(action, options);\n var boundary = utils.random_public_id();\n var errorRaised = false;\n var handle_response = function handle_response(res) {\n // let buffer;\n if (errorRaised) {\n\n // Already reported\n } else if (res.error) {\n errorRaised = true;\n\n if (USE_PROMISES) {\n deferred.reject(res);\n }\n callback(res);\n } else if (includes([200, 400, 401, 404, 420, 500], res.statusCode)) {\n var buffer = \"\";\n res.on(\"data\", function (d) {\n buffer += d;\n return buffer;\n });\n res.on(\"end\", function () {\n var result = void 0;\n if (errorRaised) {\n return;\n }\n result = parseResult(buffer, res);\n if (result.error) {\n result.error.http_code = res.statusCode;\n if (USE_PROMISES) {\n deferred.reject(result.error);\n }\n } else {\n cacheResults(result, options);\n if (USE_PROMISES) {\n deferred.resolve(result);\n }\n }\n callback(result);\n });\n res.on(\"error\", function (error) {\n errorRaised = true;\n if (USE_PROMISES) {\n deferred.reject(error);\n }\n callback({ error });\n });\n } else {\n var error = {\n message: `Server returned unexpected status code - ${res.statusCode}`,\n http_code: res.statusCode,\n name: \"UnexpectedResponse\"\n };\n if (USE_PROMISES) {\n deferred.reject(error);\n }\n callback({ error });\n }\n };\n var post_data = utils.hashToParameters(params).filter(function (_ref3) {\n var _ref4 = _slicedToArray(_ref3, 2),\n key = _ref4[0],\n value = _ref4[1];\n\n return value != null;\n }).map(function (_ref5) {\n var _ref6 = _slicedToArray(_ref5, 2),\n key = _ref6[0],\n value = _ref6[1];\n\n return Buffer.from(encodeFieldPart(boundary, key, value), 'utf8');\n });\n var result = post(api_url, post_data, boundary, file, handle_response, options);\n if (isObject(result)) {\n return result;\n }\n\n if (USE_PROMISES) {\n return deferred.promise;\n }\n}\n\nfunction post(url, post_data, boundary, file, callback, options) {\n var file_header = void 0;\n var finish_buffer = Buffer.from(\"--\" + boundary + \"--\", 'ascii');\n var oauth_token = options.oauth_token || config().oauth_token;\n if (file != null || options.stream) {\n // eslint-disable-next-line no-nested-ternary\n var filename = options.stream ? options.filename ? options.filename : \"file\" : basename(file);\n file_header = Buffer.from(encodeFilePart(boundary, 'application/octet-stream', 'file', filename), 'binary');\n }\n var post_options = urlLib.parse(url);\n var headers = {\n 'Content-Type': `multipart/form-data; boundary=${boundary}`,\n 'User-Agent': utils.getUserAgent()\n };\n if (options.content_range != null) {\n headers['Content-Range'] = options.content_range;\n }\n if (options.x_unique_upload_id != null) {\n headers['X-Unique-Upload-Id'] = options.x_unique_upload_id;\n }\n if (oauth_token != null) {\n headers.Authorization = `Bearer ${oauth_token}`;\n }\n\n post_options = extend(post_options, {\n method: 'POST',\n headers: headers\n });\n if (options.agent != null) {\n post_options.agent = options.agent;\n }\n var post_request = https.request(post_options, callback);\n var upload_stream = new UploadStream({ boundary });\n upload_stream.pipe(post_request);\n var timeout = false;\n post_request.on(\"error\", function (error) {\n if (timeout) {\n error = {\n message: \"Request Timeout\",\n http_code: 499,\n name: \"TimeoutError\"\n };\n }\n return callback({ error });\n });\n post_request.setTimeout(options.timeout != null ? options.timeout : 60000, function () {\n timeout = true;\n return post_request.abort();\n });\n post_data.forEach(function (postDatum) {\n return post_request.write(postDatum);\n });\n if (options.stream) {\n post_request.write(file_header);\n return upload_stream;\n }\n if (file != null) {\n post_request.write(file_header);\n fs.createReadStream(file).on('error', function (error) {\n callback({\n error: error\n });\n return post_request.abort();\n }).pipe(upload_stream);\n } else {\n post_request.write(finish_buffer);\n post_request.end();\n }\n return true;\n}\n\nfunction encodeFieldPart(boundary, name, value) {\n return [`--${boundary}`, `Content-Disposition: form-data; name=\"${name}\"`, '', value, ''].join(\"\\r\\n\");\n}\n\nfunction encodeFilePart(boundary, type, name, filename) {\n return [`--${boundary}`, `Content-Disposition: form-data; name=\"${name}\"; filename=\"${filename}\"`, `Content-Type: ${type}`, '', ''].join(\"\\r\\n\");\n}\n\nexports.direct_upload = function direct_upload(callback_url) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n var params = build_upload_params(extend({\n callback: callback_url\n }, options));\n params = utils.process_request_params(params, options);\n var api_url = utils.api_url(\"upload\", options);\n return {\n hidden_fields: params,\n form_attrs: {\n action: api_url,\n method: \"POST\",\n enctype: \"multipart/form-data\"\n }\n };\n};\n\nexports.upload_tag_params = function upload_tag_params() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n\n var params = build_upload_params(options);\n params = utils.process_request_params(params, options);\n return JSON.stringify(params);\n};\n\nexports.upload_url = function upload_url() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n\n if (options.resource_type == null) {\n options.resource_type = \"auto\";\n }\n return utils.api_url(\"upload\", options);\n};\n\nexports.image_upload_tag = function image_upload_tag(field) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n var html_options = options.html || {};\n var tag_options = extend({\n type: \"file\",\n name: \"file\",\n \"data-url\": exports.upload_url(options),\n \"data-form-data\": exports.upload_tag_params(options),\n \"data-cloudinary-field\": field,\n \"data-max-chunk-size\": options.chunk_size,\n \"class\": [html_options.class, \"cloudinary-fileupload\"].join(\" \")\n }, html_options);\n return `>} array - An array of arrays.\n * If the first element is not an array the argument is wrapped in an array.\n * @returns {string} A string representation of the arrays.\n */\nfunction encodeDoubleArray(array) {\n array = toArray(array);\n if (!isArray(array[0])) {\n array = [array];\n }\n return array.map(function (e) {\n return toArray(e).join(\",\");\n }).join(\"|\");\n}\n\nmodule.exports = encodeDoubleArray;",null,"\"use strict\";\n\n// Based on CGI::unescape. In addition does not escape / :\n// smart_escape = (string)->\n// encodeURIComponent(string).replace(/%3A/g, \":\").replace(/%2F/g, \"/\")\nfunction smart_escape(string) {\n var unsafe = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : /([^a-zA-Z0-9_.\\-\\/:]+)/g;\n\n return string.replace(unsafe, function (match) {\n return match.split(\"\").map(function (c) {\n return \"%\" + c.charCodeAt(0).toString(16).toUpperCase();\n }).join(\"\");\n });\n}\n\nmodule.exports = smart_escape;","'use strict';\n\n/**\n * Returns an ensureOption function that relies on the provided `defaultOptions` argument\n * for default values.\n * @private\n * @param {object} defaultOptions\n * @return {function(*, *, *=): *}\n */\nfunction defaults(defaultOptions) {\n return function ensureOption(options, name, defaultValue) {\n var value = void 0;\n\n if (typeof options[name] !== 'undefined') {\n value = options[name];\n } else if (typeof defaultOptions[name] !== 'undefined') {\n value = defaultOptions[name];\n } else if (typeof defaultValue !== 'undefined') {\n value = defaultValue;\n } else {\n throw `Must supply ${name}`;\n }\n\n return value;\n };\n}\n\n/**\n * Get the option `name` from options, the global config, or the default value.\n * If the value is not defined and no default value was provided,\n * the method will throw an error.\n * @private\n * @param {object} options\n * @param {string} name\n * @param {*} [defaultValue]\n * @return {*} the value associated with the provided `name` or the default.\n *\n */\nmodule.exports = defaults({});\n\nmodule.exports.defaults = defaults;","\"use strict\";\n\n/**\n * Validate that the given values are defined\n * @private\n * @param {object} parameters where each key value pair is the name and value of the argument to validate.\n *\n * @example\n *\n * function foo(bar){\n * ensurePresenceOf({bar});\n * // ...\n * }\n */\nfunction ensurePresenceOf(parameters) {\n var missing = Object.keys(parameters).filter(function (key) {\n return parameters[key] === undefined;\n });\n if (missing.length) {\n console.error(missing.join(',') + \" cannot be undefined\");\n }\n}\n\nmodule.exports = ensurePresenceOf;","\"use strict\";\n\nmodule.exports = Object.entries ? Object.entries : function (obj) {\n var ownProps = Object.keys(obj),\n i = ownProps.length,\n resArray = new Array(i); // preallocate the Array\n while (i--) {\n resArray[i] = [ownProps[i], obj[ownProps[i]]];\n }\n\n return resArray;\n};","'use strict';\n\nvar _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i[\"return\"]) _i[\"return\"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError(\"Invalid attempt to destructure non-iterable instance\"); } }; }();\n\n/**\n * Helper function. Gets or populates srcset breakpoints using provided parameters\n * Either the breakpoints or min_width, max_width, max_images must be provided.\n *\n * @module utils\n * @private\n * @param {srcset} srcset Options with either `breakpoints` or `min_width`, `max_width`, and `max_images`\n *\n * @return {number[]} Array of breakpoints\n *\n */\nfunction generateBreakpoints(srcset) {\n var breakpoints = srcset.breakpoints || [];\n if (breakpoints.length) {\n return breakpoints;\n }\n\n var _map = [srcset.min_width, srcset.max_width, srcset.max_images].map(Number),\n _map2 = _slicedToArray(_map, 3),\n min_width = _map2[0],\n max_width = _map2[1],\n max_images = _map2[2];\n\n if ([min_width, max_width, max_images].some(Number.isNaN)) {\n throw 'Either (min_width, max_width, max_images) ' + 'or breakpoints must be provided to the image srcset attribute';\n }\n\n if (min_width > max_width) {\n throw 'min_width must be less than max_width';\n }\n\n if (max_images <= 0) {\n throw 'max_images must be a positive integer';\n } else if (max_images === 1) {\n min_width = max_width;\n }\n\n var stepSize = Math.ceil((max_width - min_width) / Math.max(max_images - 1, 1));\n for (var current = min_width; current < max_width; current += stepSize) {\n breakpoints.push(current);\n }\n breakpoints.push(max_width);\n return breakpoints;\n}\nmodule.exports = generateBreakpoints;","\"use strict\";\n\nvar _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };\n\nvar _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i[\"return\"]) _i[\"return\"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError(\"Invalid attempt to destructure non-iterable instance\"); } }; }();\n\nfunction _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }\n\n/**\n * Utilities\n * @module utils\n * @borrows module:auth_token as generate_auth_token\n */\n\nvar crypto = require(\"crypto\");\nvar querystring = require(\"querystring\");\nvar urlParse = require(\"url\").parse;\n\n// Functions used internally\nvar compact = require(\"lodash/compact\");\nvar first = require(\"lodash/first\");\nvar isFunction = require(\"lodash/isFunction\");\nvar isPlainObject = require(\"lodash/isPlainObject\");\nvar last = require(\"lodash/last\");\nvar map = require(\"lodash/map\");\nvar take = require(\"lodash/take\");\nvar at = require(\"lodash/at\");\n\n// Exposed by the module\nvar clone = require(\"lodash/clone\");\nvar extend = require(\"lodash/extend\");\nvar filter = require(\"lodash/filter\");\nvar includes = require(\"lodash/includes\");\nvar isArray = require(\"lodash/isArray\");\nvar isEmpty = require(\"lodash/isEmpty\");\nvar isNumber = require(\"lodash/isNumber\");\nvar isObject = require(\"lodash/isObject\");\nvar isString = require(\"lodash/isString\");\nvar isUndefined = require(\"lodash/isUndefined\");\n\nvar smart_escape = require(\"./encoding/smart_escape\");\nvar consumeOption = require('./parsing/consumeOption');\nvar toArray = require('./parsing/toArray');\n\nvar _require = require('./encoding/base64EncodeURL'),\n base64EncodeURL = _require.base64EncodeURL;\n\nvar encodeDoubleArray = require('./encoding/encodeDoubleArray');\n\nvar config = require(\"../config\");\nvar generate_token = require(\"../auth_token\");\nvar utf8_encode = require('./utf8_encode');\nvar crc32 = require('./crc32');\nvar ensurePresenceOf = require('./ensurePresenceOf');\nvar ensureOption = require('./ensureOption').defaults(config());\nvar entries = require('./entries');\nvar isRemoteUrl = require('./isRemoteUrl');\nvar getSDKVersions = require('./encoding/sdkAnalytics/getSDKVersions');\n\nvar _require$Util = require('cloudinary-core').Util,\n getAnalyticsOptions = _require$Util.getAnalyticsOptions,\n getSDKAnalyticsSignature = _require$Util.getSDKAnalyticsSignature;\n\nexports = module.exports;\nvar utils = module.exports;\n\ntry {\n // eslint-disable-next-line global-require\n utils.VERSION = require('../../package.json').version;\n} catch (error) {\n utils.VERSION = '';\n}\n\nfunction generate_auth_token(options) {\n var token_options = Object.assign({}, config().auth_token, options);\n return generate_token(token_options);\n}\n\nexports.CF_SHARED_CDN = \"d3jpl91pxevbkh.cloudfront.net\";\nexports.OLD_AKAMAI_SHARED_CDN = \"cloudinary-a.akamaihd.net\";\nexports.AKAMAI_SHARED_CDN = \"res.cloudinary.com\";\nexports.SHARED_CDN = exports.AKAMAI_SHARED_CDN;\nexports.USER_AGENT = `CloudinaryNodeJS/${exports.VERSION} (Node ${process.versions.node})`;\n\n// Add platform information to the USER_AGENT header\n// This is intended for platform information and not individual applications!\nexports.userPlatform = \"\";\n\nfunction getUserAgent() {\n return isEmpty(utils.userPlatform) ? `${utils.USER_AGENT}` : `${utils.userPlatform} ${utils.USER_AGENT}`;\n}\n\nvar _require2 = require('./consts'),\n DEFAULT_RESPONSIVE_WIDTH_TRANSFORMATION = _require2.DEFAULT_RESPONSIVE_WIDTH_TRANSFORMATION,\n DEFAULT_POSTER_OPTIONS = _require2.DEFAULT_POSTER_OPTIONS,\n DEFAULT_VIDEO_SOURCE_TYPES = _require2.DEFAULT_VIDEO_SOURCE_TYPES,\n CONDITIONAL_OPERATORS = _require2.CONDITIONAL_OPERATORS,\n PREDEFINED_VARS = _require2.PREDEFINED_VARS,\n LAYER_KEYWORD_PARAMS = _require2.LAYER_KEYWORD_PARAMS,\n TRANSFORMATION_PARAMS = _require2.TRANSFORMATION_PARAMS,\n SIMPLE_PARAMS = _require2.SIMPLE_PARAMS,\n UPLOAD_PREFIX = _require2.UPLOAD_PREFIX,\n SUPPORTED_SIGNATURE_ALGORITHMS = _require2.SUPPORTED_SIGNATURE_ALGORITHMS,\n DEFAULT_SIGNATURE_ALGORITHM = _require2.DEFAULT_SIGNATURE_ALGORITHM;\n\nfunction textStyle(layer) {\n var keywords = [];\n var style = \"\";\n\n if (!isEmpty(layer.text_style)) {\n return layer.text_style;\n }\n Object.keys(LAYER_KEYWORD_PARAMS).forEach(function (attr) {\n var default_value = LAYER_KEYWORD_PARAMS[attr];\n var attr_value = layer[attr] || default_value;\n if (attr_value !== default_value) {\n keywords.push(attr_value);\n }\n });\n\n Object.keys(layer).forEach(function (attr) {\n if (attr === \"letter_spacing\" || attr === \"line_spacing\") {\n keywords.push(`${attr}_${layer[attr]}`);\n }\n if (attr === \"font_hinting\") {\n keywords.push(`${attr.split(\"_\").pop()}_${layer[attr]}`);\n }\n if (attr === \"font_antialiasing\") {\n keywords.push(`antialias_${layer[attr]}`);\n }\n });\n\n if (layer.hasOwnProperty(\"font_size\" || \"font_family\") || !isEmpty(keywords)) {\n if (!layer.font_size) throw `Must supply font_size for text in overlay/underlay`;\n if (!layer.font_family) throw `Must supply font_family for text in overlay/underlay`;\n keywords.unshift(layer.font_size);\n keywords.unshift(layer.font_family);\n style = compact(keywords).join(\"_\");\n }\n return style;\n}\n\n/**\n * Normalize an expression string, replace \"nice names\" with their coded values and spaces with \"_\"\n * e.g. `width > 0` => `w_lt_0`\n *\n * @param {String} expression An expression to be normalized\n * @return {Object|String} A normalized String of the input value if possible otherwise the value itself\n */\nfunction normalize_expression(expression) {\n if (!isString(expression) || expression.length === 0 || expression.match(/^!.+!$/)) {\n return expression;\n }\n\n var operators = \"\\\\|\\\\||>=|<=|&&|!=|>|=|<|/|-|\\\\^|\\\\+|\\\\*\";\n var operatorsPattern = \"((\" + operators + \")(?=[ _]))\";\n var operatorsReplaceRE = new RegExp(operatorsPattern, \"g\");\n expression = expression.replace(operatorsReplaceRE, function (match) {\n return CONDITIONAL_OPERATORS[match];\n });\n\n // Duplicate PREDEFINED_VARS to also include :{var_name} as well as {var_name}\n // Example:\n // -- PREDEFINED_VARS = ['foo']\n // -- predefinedVarsPattern = ':foo|foo'\n // It is done like this because node 6 does not support regex lookbehind\n var predefinedVarsPattern = \"(\" + Object.keys(PREDEFINED_VARS).map(function (v) {\n return `:${v}|${v}`;\n }).join(\"|\") + \")\";\n var userVariablePattern = '(\\\\$_*[^_ ]+)';\n var variablesReplaceRE = new RegExp(`${userVariablePattern}|${predefinedVarsPattern}`, \"g\");\n expression = expression.replace(variablesReplaceRE, function (match) {\n return PREDEFINED_VARS[match] || match;\n });\n\n return expression.replace(/[ _]+/g, '_');\n}\n\n/**\n * Parse custom_function options\n * @private\n * @param {object|*} customFunction a custom function object containing function_type and source values\n * @return {string|*} custom_function transformation string\n */\nfunction process_custom_function(customFunction) {\n if (!isObject(customFunction)) {\n return customFunction;\n }\n if (customFunction.function_type === \"remote\") {\n var encodedSource = base64EncodeURL(customFunction.source);\n\n return [customFunction.function_type, encodedSource].join(\":\");\n }\n return [customFunction.function_type, customFunction.source].join(\":\");\n}\n\n/**\n * Parse custom_pre_function options\n * @private\n * @param {object|*} customPreFunction a custom function object containing function_type and source values\n * @return {string|*} custom_pre_function transformation string\n */\nfunction process_custom_pre_function(customPreFunction) {\n var result = process_custom_function(customPreFunction);\n return utils.isString(result) ? `pre:${result}` : null;\n}\n\n/**\n * Parse \"if\" parameter\n * Translates the condition if provided.\n * @private\n * @return {string} \"if_\" + ifValue\n */\nfunction process_if(ifValue) {\n return ifValue ? \"if_\" + normalize_expression(ifValue) : ifValue;\n}\n\n/**\n * Parse layer options\n * @private\n * @param {object|*} layer The layer to parse.\n * @return {string} layer transformation string\n */\nfunction process_layer(layer) {\n var result = '';\n if (isPlainObject(layer)) {\n if (layer.resource_type === \"fetch\" || layer.url != null) {\n result = `fetch:${base64EncodeURL(layer.url)}`;\n } else {\n var public_id = layer.public_id;\n var format = layer.format;\n var resource_type = layer.resource_type || \"image\";\n var type = layer.type || \"upload\";\n var text = layer.text;\n var style = null;\n var components = [];\n var noPublicId = isEmpty(public_id);\n if (!noPublicId) {\n public_id = public_id.replace(new RegExp(\"/\", 'g'), \":\");\n if (format != null) {\n public_id = `${public_id}.${format}`;\n }\n }\n if (isEmpty(text) && resource_type !== \"text\") {\n if (noPublicId) {\n throw \"Must supply public_id for resource_type layer_parameter\";\n }\n if (resource_type === \"subtitles\") {\n style = textStyle(layer);\n }\n } else {\n resource_type = \"text\";\n type = null;\n // type is ignored for text layers\n style = textStyle(layer);\n if (!isEmpty(text)) {\n var noStyle = isEmpty(style);\n if (!(noPublicId || noStyle) || noPublicId && noStyle) {\n throw \"Must supply either style parameters or a public_id when providing text parameter in a text overlay/underlay\";\n }\n var re = /\\$\\([a-zA-Z]\\w*\\)/g;\n var start = 0;\n var textSource = smart_escape(decodeURIComponent(text), /[,\\/]/g);\n text = \"\";\n for (var res = re.exec(textSource); res; res = re.exec(textSource)) {\n text += smart_escape(textSource.slice(start, res.index));\n text += res[0];\n start = res.index + res[0].length;\n }\n text += encodeURIComponent(textSource.slice(start));\n }\n }\n if (resource_type !== \"image\") {\n components.push(resource_type);\n }\n if (type !== \"upload\") {\n components.push(type);\n }\n components.push(style);\n components.push(public_id);\n components.push(text);\n result = compact(components).join(\":\");\n }\n } else if (/^fetch:.+/.test(layer)) {\n result = `fetch:${base64EncodeURL(layer.substr(6))}`;\n } else {\n result = layer;\n }\n return result;\n}\n\n/**\n * Parse radius options\n * @private\n * @param {Array|string|number} radius The radius to parse\n * @return {string} radius transformation string\n */\nfunction process_radius(radius) {\n if (!radius) {\n return radius;\n }\n if (!isArray(radius)) {\n radius = [radius];\n }\n if (radius.length === 0 || radius.length > 4) {\n throw new Error(\"Radius array should contain between 1 and 4 values\");\n }\n if (radius.findIndex(function (x) {\n return x === null;\n }) >= 0) {\n throw new Error(\"Corner: Cannot be null\");\n }\n return radius.map(normalize_expression).join(':');\n}\n\nfunction build_multi_and_sprite_params(tagOrOptions, options) {\n var tag = null;\n if (typeof tagOrOptions === 'string') {\n tag = tagOrOptions;\n } else {\n if (isEmpty(options)) {\n options = tagOrOptions;\n } else {\n throw new Error('First argument must be a tag when additional options are passed');\n }\n tag = null;\n }\n if (!options && !tag) {\n throw new Error('Either tag or urls are required');\n }\n if (!options) {\n options = {};\n }\n var urls = options.urls;\n var transformation = generate_transformation_string(extend({}, options, {\n fetch_format: options.format\n }));\n return {\n tag,\n transformation,\n urls,\n timestamp: utils.timestamp(),\n async: options.async,\n notification_url: options.notification_url\n };\n}\n\nfunction build_upload_params(options) {\n var params = {\n access_mode: options.access_mode,\n allowed_formats: options.allowed_formats && toArray(options.allowed_formats).join(\",\"),\n async: utils.as_safe_bool(options.async),\n backup: utils.as_safe_bool(options.backup),\n callback: options.callback,\n cinemagraph_analysis: utils.as_safe_bool(options.cinemagraph_analysis),\n colors: utils.as_safe_bool(options.colors),\n discard_original_filename: utils.as_safe_bool(options.discard_original_filename),\n eager: utils.build_eager(options.eager),\n eager_async: utils.as_safe_bool(options.eager_async),\n eager_notification_url: options.eager_notification_url,\n eval: options.eval,\n exif: utils.as_safe_bool(options.exif),\n faces: utils.as_safe_bool(options.faces),\n folder: options.folder,\n format: options.format,\n filename_override: options.filename_override,\n image_metadata: utils.as_safe_bool(options.image_metadata),\n invalidate: utils.as_safe_bool(options.invalidate),\n moderation: options.moderation,\n notification_url: options.notification_url,\n overwrite: utils.as_safe_bool(options.overwrite),\n phash: utils.as_safe_bool(options.phash),\n proxy: options.proxy,\n public_id: options.public_id,\n quality_analysis: utils.as_safe_bool(options.quality_analysis),\n responsive_breakpoints: utils.generate_responsive_breakpoints_string(options.responsive_breakpoints),\n return_delete_token: utils.as_safe_bool(options.return_delete_token),\n timestamp: options.timestamp || exports.timestamp(),\n transformation: utils.generate_transformation_string(clone(options)),\n type: options.type,\n unique_filename: utils.as_safe_bool(options.unique_filename),\n upload_preset: options.upload_preset,\n use_filename: utils.as_safe_bool(options.use_filename),\n quality_override: options.quality_override,\n accessibility_analysis: utils.as_safe_bool(options.accessibility_analysis)\n };\n return utils.updateable_resource_params(options, params);\n}\n\nfunction encode_key_value(arg) {\n if (!isObject(arg)) {\n return arg;\n }\n return entries(arg).map(function (_ref) {\n var _ref2 = _slicedToArray(_ref, 2),\n k = _ref2[0],\n v = _ref2[1];\n\n return `${k}=${v}`;\n }).join('|');\n}\n\n/**\n * @description Escape = and | with two backslashes \\\\\n * @param {string|number} value\n * @return {string}\n */\nfunction escapeMetadataValue(value) {\n return value.toString().replace(/([=|])/g, '\\\\$&');\n}\n\n/**\n *\n * @description Encode metadata fields based on incoming value.\n * If array, escape as color_id=[\\\"green\\\",\\\"red\\\"]\n * If string/number, escape as in_stock_id=50\n *\n * Joins resulting values with a pipe:\n * in_stock_id=50|color_id=[\\\"green\\\",\\\"red\\\"]\n *\n * = and | and escaped by default (this can't be turned off)\n *\n * @param metadataObj\n * @return {string}\n */\nfunction encode_context(metadataObj) {\n if (!isObject(metadataObj)) {\n return metadataObj;\n }\n\n return entries(metadataObj).map(function (_ref3) {\n var _ref4 = _slicedToArray(_ref3, 2),\n key = _ref4[0],\n value = _ref4[1];\n\n // if string, simply parse the value and move on\n if (isString(value)) {\n return `${key}=${escapeMetadataValue(value)}`;\n\n // If array, parse each item individually\n } else if (isArray(value)) {\n var values = value.map(function (innerVal) {\n return `\\\"${escapeMetadataValue(innerVal)}\\\"`;\n }).join(',');\n return `${key}=[${values}]`;\n // if unknown, return the value as string\n } else {\n return value.toString();\n }\n }).join('|');\n}\n\nfunction build_eager(transformations) {\n return toArray(transformations).map(function (transformation) {\n var transformationString = utils.generate_transformation_string(clone(transformation));\n var format = transformation.format;\n return format == null ? transformationString : `${transformationString}/${format}`;\n }).join('|');\n}\n/**\n * Build the custom headers for the request\n * @private\n * @param headers\n * @return {Array|object|string} An object of name and value,\n * an array of header strings, or a string of headers\n */\nfunction build_custom_headers(headers) {\n switch (true) {\n case headers == null:\n return void 0;\n case isArray(headers):\n return headers.join(\"\\n\");\n case isObject(headers):\n return entries(headers).map(function (_ref5) {\n var _ref6 = _slicedToArray(_ref5, 2),\n k = _ref6[0],\n v = _ref6[1];\n\n return `${k}:${v}`;\n }).join(\"\\n\");\n default:\n return headers;\n }\n}\n\nfunction generate_transformation_string(options) {\n if (utils.isString(options)) {\n return options;\n }\n if (isArray(options)) {\n return options.map(function (t) {\n return utils.generate_transformation_string(clone(t));\n }).filter(utils.present).join('/');\n }\n\n var responsive_width = consumeOption(options, \"responsive_width\", config().responsive_width);\n var width = options.width;\n var height = options.height;\n var size = consumeOption(options, \"size\");\n if (size) {\n var _size$split = size.split(\"x\");\n\n var _size$split2 = _slicedToArray(_size$split, 2);\n\n width = _size$split2[0];\n height = _size$split2[1];\n var _ref7 = [width, height];\n options.width = _ref7[0];\n options.height = _ref7[1];\n }\n var has_layer = options.overlay || options.underlay;\n var crop = consumeOption(options, \"crop\");\n var angle = toArray(consumeOption(options, \"angle\")).join(\".\");\n var no_html_sizes = has_layer || utils.present(angle) || crop === \"fit\" || crop === \"limit\" || responsive_width;\n if (width && (width.toString().indexOf(\"auto\") === 0 || no_html_sizes || parseFloat(width) < 1)) {\n delete options.width;\n }\n if (height && (no_html_sizes || parseFloat(height) < 1)) {\n delete options.height;\n }\n var background = consumeOption(options, \"background\");\n background = background && background.replace(/^#/, \"rgb:\");\n var color = consumeOption(options, \"color\");\n color = color && color.replace(/^#/, \"rgb:\");\n var base_transformations = toArray(consumeOption(options, \"transformation\", []));\n var named_transformation = [];\n if (base_transformations.some(isObject)) {\n base_transformations = base_transformations.map(function (tr) {\n return utils.generate_transformation_string(isObject(tr) ? clone(tr) : { transformation: tr });\n });\n } else {\n named_transformation = base_transformations.join(\".\");\n base_transformations = [];\n }\n var effect = consumeOption(options, \"effect\");\n if (isArray(effect)) {\n effect = effect.join(\":\");\n } else if (isObject(effect)) {\n effect = entries(effect).map(function (_ref8) {\n var _ref9 = _slicedToArray(_ref8, 2),\n key = _ref9[0],\n value = _ref9[1];\n\n return `${key}:${value}`;\n });\n }\n var border = consumeOption(options, \"border\");\n if (isObject(border)) {\n border = `${border.width != null ? border.width : 2}px_solid_${(border.color != null ? border.color : \"black\").replace(/^#/, 'rgb:')}`;\n } else if (/^\\d+$/.exec(border)) {\n // fallback to html border attributes\n options.border = border;\n border = void 0;\n }\n var flags = toArray(consumeOption(options, \"flags\")).join(\".\");\n var dpr = consumeOption(options, \"dpr\", config().dpr);\n if (options.offset != null) {\n var _split_range = split_range(consumeOption(options, \"offset\"));\n\n var _split_range2 = _slicedToArray(_split_range, 2);\n\n options.start_offset = _split_range2[0];\n options.end_offset = _split_range2[1];\n }\n var overlay = process_layer(consumeOption(options, \"overlay\"));\n var radius = process_radius(consumeOption(options, \"radius\"));\n var underlay = process_layer(consumeOption(options, \"underlay\"));\n var ifValue = process_if(consumeOption(options, \"if\"));\n var custom_function = process_custom_function(consumeOption(options, \"custom_function\"));\n var custom_pre_function = process_custom_pre_function(consumeOption(options, \"custom_pre_function\"));\n var fps = consumeOption(options, 'fps');\n if (isArray(fps)) {\n fps = fps.join('-');\n }\n var params = {\n a: normalize_expression(angle),\n ar: normalize_expression(consumeOption(options, \"aspect_ratio\")),\n b: background,\n bo: border,\n c: crop,\n co: color,\n dpr: normalize_expression(dpr),\n e: normalize_expression(effect),\n fl: flags,\n fn: custom_function || custom_pre_function,\n fps: fps,\n h: normalize_expression(height),\n ki: normalize_expression(consumeOption(options, \"keyframe_interval\")),\n l: overlay,\n o: normalize_expression(consumeOption(options, \"opacity\")),\n q: normalize_expression(consumeOption(options, \"quality\")),\n r: radius,\n t: named_transformation,\n u: underlay,\n w: normalize_expression(width),\n x: normalize_expression(consumeOption(options, \"x\")),\n y: normalize_expression(consumeOption(options, \"y\")),\n z: normalize_expression(consumeOption(options, \"zoom\"))\n };\n\n SIMPLE_PARAMS.forEach(function (_ref10) {\n var _ref11 = _slicedToArray(_ref10, 2),\n name = _ref11[0],\n short = _ref11[1];\n\n var value = consumeOption(options, name);\n if (value !== undefined) {\n params[short] = value;\n }\n });\n if (params.vc != null) {\n params.vc = process_video_params(params.vc);\n }\n [\"so\", \"eo\", \"du\"].forEach(function (short) {\n if (params[short] !== undefined) {\n params[short] = norm_range_value(params[short]);\n }\n });\n\n var variablesParam = consumeOption(options, \"variables\", []);\n var variables = entries(options).filter(function (_ref12) {\n var _ref13 = _slicedToArray(_ref12, 2),\n key = _ref13[0],\n value = _ref13[1];\n\n return key.startsWith('$');\n }).map(function (_ref14) {\n var _ref15 = _slicedToArray(_ref14, 2),\n key = _ref15[0],\n value = _ref15[1];\n\n delete options[key];\n return `${key}_${normalize_expression(value)}`;\n }).sort().concat(variablesParam.map(function (_ref16) {\n var _ref17 = _slicedToArray(_ref16, 2),\n name = _ref17[0],\n value = _ref17[1];\n\n return `${name}_${normalize_expression(value)}`;\n })).join(',');\n\n var transformations = entries(params).filter(function (_ref18) {\n var _ref19 = _slicedToArray(_ref18, 2),\n key = _ref19[0],\n value = _ref19[1];\n\n return utils.present(value);\n }).map(function (_ref20) {\n var _ref21 = _slicedToArray(_ref20, 2),\n key = _ref21[0],\n value = _ref21[1];\n\n return key + '_' + value;\n }).sort().join(',');\n\n var raw_transformation = consumeOption(options, 'raw_transformation');\n transformations = compact([ifValue, variables, transformations, raw_transformation]).join(\",\");\n base_transformations.push(transformations);\n transformations = base_transformations;\n if (responsive_width) {\n var responsive_width_transformation = config().responsive_width_transformation || DEFAULT_RESPONSIVE_WIDTH_TRANSFORMATION;\n\n transformations.push(utils.generate_transformation_string(clone(responsive_width_transformation)));\n }\n if (String(width).startsWith(\"auto\") || responsive_width) {\n options.responsive = true;\n }\n if (dpr === \"auto\") {\n options.hidpi = true;\n }\n return filter(transformations, utils.present).join(\"/\");\n}\n\nfunction updateable_resource_params(options) {\n var params = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n if (options.access_control != null) {\n params.access_control = utils.jsonArrayParam(options.access_control);\n }\n if (options.auto_tagging != null) {\n params.auto_tagging = options.auto_tagging;\n }\n if (options.background_removal != null) {\n params.background_removal = options.background_removal;\n }\n if (options.categorization != null) {\n params.categorization = options.categorization;\n }\n if (options.context != null) {\n params.context = utils.encode_context(options.context);\n }\n if (options.metadata != null) {\n params.metadata = utils.encode_context(options.metadata);\n }\n if (options.custom_coordinates != null) {\n params.custom_coordinates = encodeDoubleArray(options.custom_coordinates);\n }\n if (options.detection != null) {\n params.detection = options.detection;\n }\n if (options.face_coordinates != null) {\n params.face_coordinates = encodeDoubleArray(options.face_coordinates);\n }\n if (options.headers != null) {\n params.headers = utils.build_custom_headers(options.headers);\n }\n if (options.notification_url != null) {\n params.notification_url = options.notification_url;\n }\n if (options.ocr != null) {\n params.ocr = options.ocr;\n }\n if (options.raw_convert != null) {\n params.raw_convert = options.raw_convert;\n }\n if (options.similarity_search != null) {\n params.similarity_search = options.similarity_search;\n }\n if (options.tags != null) {\n params.tags = toArray(options.tags).join(\",\");\n }\n if (options.quality_override != null) {\n params.quality_override = options.quality_override;\n }\n return params;\n}\n\n/**\n * A list of keys used by the url() function.\n * @private\n */\nvar URL_KEYS = ['api_secret', 'auth_token', 'cdn_subdomain', 'cloud_name', 'cname', 'format', 'long_url_signature', 'private_cdn', 'resource_type', 'secure', 'secure_cdn_subdomain', 'secure_distribution', 'shorten', 'sign_url', 'ssl_detected', 'type', 'url_suffix', 'use_root_path', 'version'];\n\n/**\n * Create a new object with only URL parameters\n * @param {object} options The source object\n * @return {Object} An object containing only URL parameters\n */\n\nfunction extractUrlParams(options) {\n return pickOnlyExistingValues.apply(undefined, [options].concat(URL_KEYS));\n}\n\n/**\n * Create a new object with only transformation parameters\n * @param {object} options The source object\n * @return {Object} An object containing only transformation parameters\n */\n\nfunction extractTransformationParams(options) {\n return pickOnlyExistingValues.apply(undefined, [options].concat(_toConsumableArray(TRANSFORMATION_PARAMS)));\n}\n\n/**\n * Handle the format parameter for fetch urls\n * @private\n * @param options url and transformation options. This argument may be changed by the function!\n */\n\nfunction patchFetchFormat() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n\n if (options.type === \"fetch\") {\n if (options.fetch_format == null) {\n options.fetch_format = consumeOption(options, \"format\");\n }\n }\n}\n\nfunction url(public_id) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n var signature = void 0,\n source_to_sign = void 0;\n utils.patchFetchFormat(options);\n var type = consumeOption(options, \"type\", null);\n var transformation = utils.generate_transformation_string(options);\n\n var resource_type = consumeOption(options, \"resource_type\", \"image\");\n var version = consumeOption(options, \"version\");\n var force_version = consumeOption(options, \"force_version\", config().force_version);\n if (force_version == null) {\n force_version = true;\n }\n var long_url_signature = !!consumeOption(options, \"long_url_signature\", config().long_url_signature);\n var format = consumeOption(options, \"format\");\n var cloud_name = consumeOption(options, \"cloud_name\", config().cloud_name);\n if (!cloud_name) {\n throw \"Unknown cloud_name\";\n }\n var private_cdn = consumeOption(options, \"private_cdn\", config().private_cdn);\n var secure_distribution = consumeOption(options, \"secure_distribution\", config().secure_distribution);\n var secure = consumeOption(options, \"secure\", null);\n var ssl_detected = consumeOption(options, \"ssl_detected\", config().ssl_detected);\n if (secure === null) {\n secure = ssl_detected || config().secure;\n }\n var cdn_subdomain = consumeOption(options, \"cdn_subdomain\", config().cdn_subdomain);\n var secure_cdn_subdomain = consumeOption(options, \"secure_cdn_subdomain\", config().secure_cdn_subdomain);\n var cname = consumeOption(options, \"cname\", config().cname);\n var shorten = consumeOption(options, \"shorten\", config().shorten);\n var sign_url = consumeOption(options, \"sign_url\", config().sign_url);\n var api_secret = consumeOption(options, \"api_secret\", config().api_secret);\n var url_suffix = consumeOption(options, \"url_suffix\");\n var use_root_path = consumeOption(options, \"use_root_path\", config().use_root_path);\n var signature_algorithm = consumeOption(options, \"signature_algorithm\", config().signature_algorithm || DEFAULT_SIGNATURE_ALGORITHM);\n if (long_url_signature) {\n signature_algorithm = 'sha256';\n }\n var auth_token = consumeOption(options, \"auth_token\");\n if (auth_token !== false) {\n auth_token = exports.merge(config().auth_token, auth_token);\n }\n var preloaded = /^(image|raw)\\/([a-z0-9_]+)\\/v(\\d+)\\/([^#]+)$/.exec(public_id);\n if (preloaded) {\n resource_type = preloaded[1];\n type = preloaded[2];\n version = preloaded[3];\n public_id = preloaded[4];\n }\n var original_source = public_id;\n if (public_id == null) {\n return original_source;\n }\n public_id = public_id.toString();\n if (type === null && public_id.match(/^https?:\\//i)) {\n return original_source;\n }\n\n var _finalize_resource_ty = finalize_resource_type(resource_type, type, url_suffix, use_root_path, shorten);\n\n var _finalize_resource_ty2 = _slicedToArray(_finalize_resource_ty, 2);\n\n resource_type = _finalize_resource_ty2[0];\n type = _finalize_resource_ty2[1];\n\n var _finalize_source = finalize_source(public_id, format, url_suffix);\n\n var _finalize_source2 = _slicedToArray(_finalize_source, 2);\n\n public_id = _finalize_source2[0];\n source_to_sign = _finalize_source2[1];\n\n\n if (version == null && force_version && source_to_sign.indexOf(\"/\") >= 0 && !source_to_sign.match(/^v[0-9]+/) && !source_to_sign.match(/^https?:\\//)) {\n version = 1;\n }\n if (version != null) {\n version = `v${version}`;\n } else {\n version = null;\n }\n\n transformation = transformation.replace(/([^:])\\/\\//g, '$1/');\n if (sign_url && isEmpty(auth_token)) {\n var to_sign = [transformation, source_to_sign].filter(function (part) {\n return part != null && part !== '';\n }).join('/');\n try {\n for (var i = 0; to_sign !== decodeURIComponent(to_sign) && i < 10; i++) {\n to_sign = decodeURIComponent(to_sign);\n }\n // eslint-disable-next-line no-empty\n } catch (error) {}\n var hash = computeHash(to_sign + api_secret, signature_algorithm, 'base64');\n signature = hash.replace(/\\//g, '_').replace(/\\+/g, '-').substring(0, long_url_signature ? 32 : 8);\n signature = `s--${signature}--`;\n }\n var prefix = unsigned_url_prefix(public_id, cloud_name, private_cdn, cdn_subdomain, secure_cdn_subdomain, cname, secure, secure_distribution);\n var resultUrl = [prefix, resource_type, type, signature, transformation, version, public_id].filter(function (part) {\n return part != null && part !== '';\n }).join('/').replace(/ /g, '%20');\n if (sign_url && !isEmpty(auth_token)) {\n auth_token.url = urlParse(resultUrl).path;\n var token = generate_token(auth_token);\n resultUrl += `?${token}`;\n }\n\n var urlAnalytics = ensureOption(options, 'urlAnalytics', false);\n\n if (urlAnalytics === true) {\n var sdkVersions = getSDKVersions();\n var analyticsOptions = getAnalyticsOptions(Object.assign({}, options, sdkVersions));\n\n var sdkAnalyticsSignature = getSDKAnalyticsSignature(analyticsOptions);\n\n // url might already have a '?' query param\n var appender = '?';\n if (resultUrl.indexOf('?') >= 0) {\n appender = '&';\n }\n resultUrl = `${resultUrl}${appender}_s=${sdkAnalyticsSignature}`;\n }\n\n return resultUrl;\n}\n\nfunction video_url(public_id, options) {\n options = extend({\n resource_type: 'video'\n }, options);\n return utils.url(public_id, options);\n}\n\nfunction finalize_source(source, format, url_suffix) {\n var source_to_sign = void 0;\n source = source.replace(/([^:])\\/\\//g, '$1/');\n if (source.match(/^https?:\\//i)) {\n source = smart_escape(source);\n source_to_sign = source;\n } else {\n source = encodeURIComponent(decodeURIComponent(source)).replace(/%3A/g, \":\").replace(/%2F/g, \"/\");\n source_to_sign = source;\n if (url_suffix) {\n if (url_suffix.match(/[\\.\\/]/)) {\n throw new Error('url_suffix should not include . or /');\n }\n source = source + '/' + url_suffix;\n }\n if (format != null) {\n source = source + '.' + format;\n source_to_sign = source_to_sign + '.' + format;\n }\n }\n return [source, source_to_sign];\n}\n\nfunction video_thumbnail_url(public_id, options) {\n options = extend({}, DEFAULT_POSTER_OPTIONS, options);\n return utils.url(public_id, options);\n}\n\nfunction finalize_resource_type(resource_type, type, url_suffix, use_root_path, shorten) {\n if (type == null) {\n type = 'upload';\n }\n if (url_suffix != null) {\n if (resource_type === 'image' && type === 'upload') {\n resource_type = \"images\";\n type = null;\n } else if (resource_type === 'image' && type === 'private') {\n resource_type = 'private_images';\n type = null;\n } else if (resource_type === 'image' && type === 'authenticated') {\n resource_type = 'authenticated_images';\n type = null;\n } else if (resource_type === 'raw' && type === 'upload') {\n resource_type = 'files';\n type = null;\n } else if (resource_type === 'video' && type === 'upload') {\n resource_type = 'videos';\n type = null;\n } else {\n throw new Error(\"URL Suffix only supported for image/upload, image/private, image/authenticated, video/upload and raw/upload\");\n }\n }\n if (use_root_path) {\n if (resource_type === 'image' && type === 'upload' || resource_type === 'images' && type == null) {\n resource_type = null;\n type = null;\n } else {\n throw new Error(\"Root path only supported for image/upload\");\n }\n }\n if (shorten && resource_type === 'image' && type === 'upload') {\n resource_type = 'iu';\n type = null;\n }\n return [resource_type, type];\n}\n// cdn_subdomain and secure_cdn_subdomain\n// 1) Customers in shared distribution (e.g. res.cloudinary.com)\n// if cdn_domain is true uses res-[1-5].cloudinary.com for both http and https.\n// Setting secure_cdn_subdomain to false disables this for https.\n// 2) Customers with private cdn\n// if cdn_domain is true uses cloudname-res-[1-5].cloudinary.com for http\n// if secure_cdn_domain is true uses cloudname-res-[1-5].cloudinary.com for https\n// (please contact support if you require this)\n// 3) Customers with cname\n// if cdn_domain is true uses a[1-5].cname for http.\n// For https, uses the same naming scheme as 1 for shared distribution and as 2 for private distribution.\n\nfunction unsigned_url_prefix(source, cloud_name, private_cdn, cdn_subdomain, secure_cdn_subdomain, cname, secure, secure_distribution) {\n var prefix = void 0;\n if (cloud_name.indexOf(\"/\") === 0) {\n return '/res' + cloud_name;\n }\n var shared_domain = !private_cdn;\n if (secure) {\n if (secure_distribution == null || secure_distribution === exports.OLD_AKAMAI_SHARED_CDN) {\n secure_distribution = private_cdn ? cloud_name + \"-res.cloudinary.com\" : exports.SHARED_CDN;\n }\n if (shared_domain == null) {\n shared_domain = secure_distribution === exports.SHARED_CDN;\n }\n if (secure_cdn_subdomain == null && shared_domain) {\n secure_cdn_subdomain = cdn_subdomain;\n }\n if (secure_cdn_subdomain) {\n secure_distribution = secure_distribution.replace('res.cloudinary.com', 'res-' + (crc32(source) % 5 + 1 + '.cloudinary.com'));\n }\n prefix = 'https://' + secure_distribution;\n } else if (cname) {\n var subdomain = cdn_subdomain ? 'a' + (crc32(source) % 5 + 1) + '.' : '';\n prefix = 'http://' + subdomain + cname;\n } else {\n var cdn_part = private_cdn ? cloud_name + '-' : '';\n var subdomain_part = cdn_subdomain ? '-' + (crc32(source) % 5 + 1) : '';\n var host = [cdn_part, 'res', subdomain_part, '.cloudinary.com'].join('');\n prefix = 'http://' + host;\n }\n if (shared_domain) {\n prefix += '/' + cloud_name;\n }\n return prefix;\n}\n\nfunction base_api_url() {\n var path = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n var cloudinary = ensureOption(options, \"upload_prefix\", UPLOAD_PREFIX);\n var cloud_name = ensureOption(options, \"cloud_name\");\n var encode_path = function encode_path(unencoded_path) {\n return encodeURIComponent(unencoded_path).replace(\"'\", '%27');\n };\n var encoded_path = Array.isArray(path) ? path.map(encode_path) : encode_path(path);\n return [cloudinary, \"v1_1\", cloud_name].concat(encoded_path).join(\"/\");\n}\n\nfunction api_url() {\n var action = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'upload';\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n var resource_type = options.resource_type || \"image\";\n return base_api_url([resource_type, action], options);\n}\n\nfunction random_public_id() {\n return crypto.randomBytes(12).toString('base64').replace(/[^a-z0-9]/g, \"\");\n}\n\nfunction signed_preloaded_image(result) {\n return `${result.resource_type}/upload/v${result.version}/${filter([result.public_id, result.format], utils.present).join(\".\")}#${result.signature}`;\n}\n\nfunction api_sign_request(params_to_sign, api_secret) {\n var to_sign = entries(params_to_sign).filter(function (_ref22) {\n var _ref23 = _slicedToArray(_ref22, 2),\n k = _ref23[0],\n v = _ref23[1];\n\n return utils.present(v);\n }).map(function (_ref24) {\n var _ref25 = _slicedToArray(_ref24, 2),\n k = _ref25[0],\n v = _ref25[1];\n\n return `${k}=${toArray(v).join(\",\")}`;\n }).sort().join(\"&\");\n return computeHash(to_sign + api_secret, config().signature_algorithm || DEFAULT_SIGNATURE_ALGORITHM, 'hex');\n}\n\n/**\n * Computes hash from input string using specified algorithm.\n * @private\n * @param {string} input string which to compute hash from\n * @param {string} signature_algorithm algorithm to use for computing hash\n * @param {string} encoding type of encoding\n * @return {string} computed hash value\n */\nfunction computeHash(input, signature_algorithm, encoding) {\n if (!SUPPORTED_SIGNATURE_ALGORITHMS.includes(signature_algorithm)) {\n throw new Error(`Signature algorithm ${signature_algorithm} is not supported. Supported algorithms: ${SUPPORTED_SIGNATURE_ALGORITHMS.join(', ')}`);\n }\n var hash = crypto.createHash(signature_algorithm);\n hash.update(utf8_encode(input), 'binary');\n return hash.digest(encoding);\n}\n\nfunction clear_blank(hash) {\n var filtered_hash = {};\n entries(hash).filter(function (_ref26) {\n var _ref27 = _slicedToArray(_ref26, 2),\n k = _ref27[0],\n v = _ref27[1];\n\n return utils.present(v);\n }).forEach(function (_ref28) {\n var _ref29 = _slicedToArray(_ref28, 2),\n k = _ref29[0],\n v = _ref29[1];\n\n filtered_hash[k] = v;\n });\n return filtered_hash;\n}\n\nfunction merge(hash1, hash2) {\n return _extends({}, hash1, hash2);\n}\n\nfunction sign_request(params) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n var apiKey = ensureOption(options, 'api_key');\n var apiSecret = ensureOption(options, 'api_secret');\n params = exports.clear_blank(params);\n params.signature = exports.api_sign_request(params, apiSecret);\n params.api_key = apiKey;\n return params;\n}\n\nfunction webhook_signature(data, timestamp) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n ensurePresenceOf({ data, timestamp });\n\n var api_secret = ensureOption(options, 'api_secret');\n var signature_algorithm = ensureOption(options, 'signature_algorithm', DEFAULT_SIGNATURE_ALGORITHM);\n return computeHash(data + timestamp + api_secret, signature_algorithm, 'hex');\n}\n\n/**\n * Verifies the authenticity of a notification signature\n *\n * @param {string} body JSON of the request's body\n * @param {number} timestamp Unix timestamp in seconds. Can be retrieved from the X-Cld-Timestamp header\n * @param {string} signature Actual signature. Can be retrieved from the X-Cld-Signature header\n * @param {number} [valid_for=7200] The desired time in seconds for considering the request valid\n *\n * @return {boolean}\n */\nfunction verifyNotificationSignature(body, timestamp, signature) {\n var valid_for = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 7200;\n\n // verify that signature is valid for the given timestamp\n if (timestamp < Math.round(Date.now() / 1000) - valid_for) {\n return false;\n }\n var payload_hash = utils.webhook_signature(body, timestamp, {\n api_secret: config().api_secret,\n signature_algorithm: config().signature_algorithm\n });\n return signature === payload_hash;\n}\n\nfunction process_request_params(params, options) {\n if (options.unsigned != null && options.unsigned) {\n params = exports.clear_blank(params);\n delete params.timestamp;\n } else if (options.oauth_token || config().oauth_token) {\n params = exports.clear_blank(params);\n } else if (options.signature) {\n params = exports.clear_blank(options);\n } else {\n params = exports.sign_request(params, options);\n }\n\n return params;\n}\n\nfunction private_download_url(public_id, format) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var params = exports.sign_request({\n timestamp: options.timestamp || exports.timestamp(),\n public_id: public_id,\n format: format,\n type: options.type,\n attachment: options.attachment,\n expires_at: options.expires_at\n }, options);\n return exports.api_url(\"download\", options) + \"?\" + querystring.stringify(params);\n}\n\n/**\n * Utility method that uses the deprecated ZIP download API.\n * @deprecated Replaced by {download_zip_url} that uses the more advanced and robust archive generation and download API\n */\n\nfunction zip_download_url(tag) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n var params = exports.sign_request({\n timestamp: options.timestamp || exports.timestamp(),\n tag: tag,\n transformation: utils.generate_transformation_string(options)\n }, options);\n return exports.api_url(\"download_tag.zip\", options) + \"?\" + hashToQuery(params);\n}\n\n/**\n * The returned url should allow downloading the backedup asset based on the\n * version and asset id\n * asset and version id are returned with resource(, { versions: true })\n * @param asset_id\n * @param version_id\n * @param options\n * @returns {string }\n */\nfunction download_backedup_asset(asset_id, version_id) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var params = exports.sign_request({\n timestamp: options.timestamp || exports.timestamp(),\n asset_id: asset_id,\n version_id: version_id\n }, options);\n return exports.base_api_url(['download_backup'], options) + \"?\" + hashToQuery(params);\n}\n\n/**\n * Utility method to create a signed URL for specified resources.\n * @param action\n * @param params\n * @param options\n */\nfunction api_download_url(action, params, options) {\n var download_params = _extends({}, params, { mode: \"download\" });\n var cloudinary_params = exports.sign_request(download_params, options);\n return exports.api_url(action, options) + \"?\" + hashToQuery(cloudinary_params);\n}\n\n/**\n * Returns a URL that when invokes creates an archive and returns it.\n * @param {object} options\n * @param {string} [options.resource_type=\"image\"] The resource type of files to include in the archive.\n * Must be one of :image | :video | :raw\n * @param {string} [options.type=\"upload\"] The specific file type of resources: :upload|:private|:authenticated\n * @param {string|Array} [options.tags] list of tags to include in the archive\n * @param {string|Array} [options.public_ids] list of public_ids to include in the archive\n * @param {string|Array} [options.prefixes] list of prefixes of public IDs (e.g., folders).\n * @param {string|Array} [options.fully_qualified_public_ids] list of fully qualified public_ids to include\n * in the archive.\n * @param {string|Array} [options.transformations] list of transformations.\n * The derived images of the given transformations are included in the archive. Using the string representation of\n * multiple chained transformations as we use for the 'eager' upload parameter.\n * @param {string} [options.mode=\"create\"] return the generated archive file or to store it as a raw resource and\n * return a JSON with URLs for accessing the archive. Possible values: :download, :create\n * @param {string} [options.target_format=\"zip\"]\n * @param {string} [options.target_public_id] public ID of the generated raw resource.\n * Relevant only for the create mode. If not specified, random public ID is generated.\n * @param {boolean} [options.flatten_folders=false] If true, flatten public IDs with folders to be in the root\n * of the archive. Add numeric counter to the file name in case of a name conflict.\n * @param {boolean} [options.flatten_transformations=false] If true, and multiple transformations are given,\n * flatten the folder structure of derived images and store the transformation details on the file name instead.\n * @param {boolean} [options.use_original_filename] Use the original file name of included images\n * (if available) instead of the public ID.\n * @param {boolean} [options.async=false] If true, return immediately and perform archive creation in the background.\n * Relevant only for the create mode.\n * @param {string} [options.notification_url] URL to send an HTTP post request (webhook) to when the\n * archive creation is completed.\n * @param {string|Array} [options.target_tags=] Allows assigning one or more tags to the generated archive file\n * (for later housekeeping via the admin API).\n * @param {string} [options.keep_derived=false] keep the derived images used for generating the archive\n * @return {String} archive url\n */\nfunction download_archive_url() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n\n var params = exports.archive_params(merge(options, {\n mode: \"download\"\n }));\n return api_download_url(\"generate_archive\", params, options);\n}\n\n/**\n * Returns a URL that when invokes creates an zip archive and returns it.\n * @see download_archive_url\n */\n\nfunction download_zip_url() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n\n return exports.download_archive_url(merge(options, {\n target_format: \"zip\"\n }));\n}\n\n/**\n * Creates and returns a URL that when invoked creates an archive of a folder\n * @param {string} folder_path Full path (from the root) of the folder to download\n * @param {object} options Additional options\n * @returns {string} Url for downloading an archive of a folder\n */\nfunction download_folder(folder_path) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n options.resource_type = options.resource_type || \"all\";\n options.prefixes = folder_path;\n var cloudinary_params = exports.sign_request(exports.archive_params(merge(options, {\n mode: \"download\"\n })), options);\n return exports.api_url(\"generate_archive\", options) + \"?\" + hashToQuery(cloudinary_params);\n}\n\n/**\n * Render the key/value pair as an HTML tag attribute\n * @private\n * @param {string} key\n * @param {string|boolean|number} [value]\n * @return {string} A string representing the HTML attribute\n */\nfunction join_pair(key, value) {\n if (!value) {\n return void 0;\n }\n return value === true ? key : key + \"='\" + value + \"'\";\n}\n\n/**\n * If the given value is a string, replaces single or double quotes with character entities\n * @private\n * @param {*} value The string to encode quotes in\n * @return {*} Encoded string or original value if not a string\n */\nfunction escapeQuotes(value) {\n return isString(value) ? value.replace(/\\\"/g, '"').replace(/\\'/g, ''') : value;\n}\n\n/**\n *\n * @param attrs\n * @return {*}\n */\nexports.html_attrs = function html_attrs(attrs) {\n return filter(map(attrs, function (value, key) {\n return join_pair(key, escapeQuotes(value));\n })).sort().join(\" \");\n};\n\nvar CLOUDINARY_JS_CONFIG_PARAMS = ['api_key', 'cloud_name', 'private_cdn', 'secure_distribution', 'cdn_subdomain'];\n\nfunction cloudinary_js_config() {\n var params = pickOnlyExistingValues.apply(undefined, [config()].concat(CLOUDINARY_JS_CONFIG_PARAMS));\n return ``;\n}\n\nfunction v1_result_adapter(callback) {\n if (callback == null) {\n return undefined;\n }\n return function (result) {\n if (result.error != null) {\n return callback(result.error);\n }\n return callback(void 0, result);\n };\n}\n\nfunction v1_adapter(name, num_pass_args, v1) {\n return function () {\n for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {\n args[_key] = arguments[_key];\n }\n\n var pass_args = take(args, num_pass_args);\n var options = args[num_pass_args];\n var callback = args[num_pass_args + 1];\n if (callback == null && isFunction(options)) {\n callback = options;\n options = {};\n }\n callback = v1_result_adapter(callback);\n args = pass_args.concat([callback, options]);\n return v1[name].apply(this, args);\n };\n}\n\nfunction v1_adapters(exports, v1, mapping) {\n return Object.keys(mapping).map(function (name) {\n var num_pass_args = mapping[name];\n exports[name] = v1_adapter(name, num_pass_args, v1);\n return exports[name];\n });\n}\n\nfunction as_safe_bool(value) {\n if (value == null) {\n return void 0;\n }\n if (value === true || value === 'true' || value === '1') {\n value = 1;\n }\n if (value === false || value === 'false' || value === '0') {\n value = 0;\n }\n return value;\n}\n\nvar NUMBER_PATTERN = \"([0-9]*)\\\\.([0-9]+)|([0-9]+)\";\n\nvar OFFSET_ANY_PATTERN = `(${NUMBER_PATTERN})([%pP])?`;\nvar RANGE_VALUE_RE = RegExp(`^${OFFSET_ANY_PATTERN}$`);\nvar OFFSET_ANY_PATTERN_RE = RegExp(`(${OFFSET_ANY_PATTERN})\\\\.\\\\.(${OFFSET_ANY_PATTERN})`);\n\n// Split a range into the start and end values\nfunction split_range(range) {\n // :nodoc:\n switch (range.constructor) {\n case String:\n if (!OFFSET_ANY_PATTERN_RE.test(range)) {\n return range;\n }\n return range.split(\"..\");\n case Array:\n return [first(range), last(range)];\n default:\n return [null, null];\n }\n}\n\nfunction norm_range_value(value) {\n // :nodoc:\n var offset = String(value).match(RANGE_VALUE_RE);\n if (offset) {\n var modifier = offset[5] ? 'p' : '';\n value = `${offset[1] || offset[4]}${modifier}`;\n }\n return value;\n}\n\n/**\n * A video codec parameter can be either a String or a Hash.\n * @param {Object} param vc_[ : : []] \n * or { codec: 'h264', profile: 'basic', level: '3.1' }\n * @return {String} : : []] `;\n};\n\nfunction build_explicit_api_params(public_id) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n return [exports.build_upload_params(extend({}, { public_id }, options))];\n}\n\nfunction generate_responsive_breakpoints_string(breakpoints) {\n if (breakpoints == null) {\n return null;\n }\n breakpoints = clone(breakpoints);\n if (!isArray(breakpoints)) {\n breakpoints = [breakpoints];\n }\n for (var j = 0; j < breakpoints.length; j++) {\n var breakpoint_settings = breakpoints[j];\n if (breakpoint_settings != null) {\n if (breakpoint_settings.transformation) {\n breakpoint_settings.transformation = utils.generate_transformation_string(clone(breakpoint_settings.transformation));\n }\n }\n }\n return JSON.stringify(breakpoints);\n}\n\nfunction build_streaming_profiles_param() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n\n var params = pickOnlyExistingValues(options, \"display_name\", \"representations\");\n if (isArray(params.representations)) {\n params.representations = JSON.stringify(params.representations.map(function (r) {\n return {\n transformation: utils.generate_transformation_string(r.transformation)\n };\n }));\n }\n return params;\n}\n\nfunction hashToParameters(hash) {\n return entries(hash).reduce(function (parameters, _ref30) {\n var _ref31 = _slicedToArray(_ref30, 2),\n key = _ref31[0],\n value = _ref31[1];\n\n if (isArray(value)) {\n key = key.endsWith('[]') ? key : key + '[]';\n var items = value.map(function (v) {\n return [key, v];\n });\n parameters = parameters.concat(items);\n } else {\n parameters.push([key, value]);\n }\n return parameters;\n }, []);\n}\n\n/**\n * Convert a hash of values to a URI query string.\n * Array values are spread as individual parameters.\n * @param {object} hash Key-value parameters\n * @return {string} A URI query string.\n */\nfunction hashToQuery(hash) {\n return hashToParameters(hash).map(function (_ref32) {\n var _ref33 = _slicedToArray(_ref32, 2),\n key = _ref33[0],\n value = _ref33[1];\n\n return `${querystring.escape(key)}=${querystring.escape(value)}`;\n }).join('&');\n}\n\n/**\n * Verify that the parameter `value` is defined and it's string value is not zero.\n * } data\n * @param {function(*):*} [modifier] called with the array before the array is stringified\n * @return {String|null} a JSON array string or `null` if data is `null`\n */\n\nfunction jsonArrayParam(data, modifier) {\n if (!data) {\n return null;\n }\n if (isString(data)) {\n data = JSON.parse(data);\n }\n if (!isArray(data)) {\n data = [data];\n }\n if (isFunction(modifier)) {\n data = modifier(data);\n }\n return JSON.stringify(data);\n}\n\n/**\n * Empty function - do nothing\n *\n */\nexports.NOP = function () {};\nexports.generate_auth_token = generate_auth_token;\nexports.getUserAgent = getUserAgent;\nexports.build_upload_params = build_upload_params;\nexports.build_multi_and_sprite_params = build_multi_and_sprite_params;\nexports.api_download_url = api_download_url;\nexports.timestamp = function () {\n return Math.floor(new Date().getTime() / 1000);\n};\nexports.option_consume = consumeOption; // for backwards compatibility\nexports.build_array = toArray; // for backwards compatibility\nexports.encode_double_array = encodeDoubleArray;\nexports.encode_key_value = encode_key_value;\nexports.encode_context = encode_context;\nexports.build_eager = build_eager;\nexports.build_custom_headers = build_custom_headers;\nexports.generate_transformation_string = generate_transformation_string;\nexports.updateable_resource_params = updateable_resource_params;\nexports.extractUrlParams = extractUrlParams;\nexports.extractTransformationParams = extractTransformationParams;\nexports.patchFetchFormat = patchFetchFormat;\nexports.url = url;\nexports.video_url = video_url;\nexports.video_thumbnail_url = video_thumbnail_url;\nexports.api_url = api_url;\nexports.random_public_id = random_public_id;\nexports.signed_preloaded_image = signed_preloaded_image;\nexports.api_sign_request = api_sign_request;\nexports.clear_blank = clear_blank;\nexports.merge = merge;\nexports.sign_request = sign_request;\nexports.webhook_signature = webhook_signature;\nexports.verifyNotificationSignature = verifyNotificationSignature;\nexports.process_request_params = process_request_params;\nexports.private_download_url = private_download_url;\nexports.zip_download_url = zip_download_url;\nexports.download_archive_url = download_archive_url;\nexports.download_zip_url = download_zip_url;\nexports.cloudinary_js_config = cloudinary_js_config;\nexports.v1_adapters = v1_adapters;\nexports.as_safe_bool = as_safe_bool;\nexports.archive_params = archive_params;\nexports.build_explicit_api_params = build_explicit_api_params;\nexports.generate_responsive_breakpoints_string = generate_responsive_breakpoints_string;\nexports.build_streaming_profiles_param = build_streaming_profiles_param;\nexports.hashToParameters = hashToParameters;\nexports.present = present;\nexports.only = pickOnlyExistingValues; // for backwards compatibility\nexports.pickOnlyExistingValues = pickOnlyExistingValues;\nexports.jsonArrayParam = jsonArrayParam;\nexports.download_folder = download_folder;\nexports.base_api_url = base_api_url;\nexports.download_backedup_asset = download_backedup_asset;\n\n// was exported before, so kept for backwards compatibility\nexports.DEFAULT_POSTER_OPTIONS = DEFAULT_POSTER_OPTIONS;\nexports.DEFAULT_VIDEO_SOURCE_TYPES = DEFAULT_VIDEO_SOURCE_TYPES;\n\nObject.assign(module.exports, {\n normalize_expression,\n at,\n clone,\n extend,\n filter,\n includes,\n isArray,\n isEmpty,\n isNumber,\n isObject,\n isRemoteUrl,\n isString,\n isUndefined,\n keys: function keys(source) {\n return Object.keys(source);\n },\n ensurePresenceOf\n});","'use strict';\n\nvar isString = require('lodash/isString');\n\n/**\n * Checks whether a given url or path is a local file\n * @param {string} url the url or path to the file\n * @returns {boolean} true if the given url is a remote location or data\n */\nfunction isRemoteUrl(url) {\n return isString(url) && /^ftp:|^https?:|^gs:|^s3:|^data:([\\w-.]+\\/[\\w-.]+(\\+[\\w-.]+)?)?(;[\\w-.]+=[\\w-.]+)*;base64,([a-zA-Z0-9\\/+\\n=]+)$/.test(url);\n}\n\nmodule.exports = isRemoteUrl;","\"use strict\";\n\n/**\n * Deletes `option_name` from `options` and return the value if present.\n * If `options` doesn't contain `option_name` the default value is returned.\n * @param {Object} options a collection\n * @param {String} option_name the name (key) of the desired value\n * @param {*} [default_value] the value to return is option_name is missing\n */\n\nfunction consumeOption(options, option_name, default_value) {\n var result = options[option_name];\n delete options[option_name];\n return result != null ? result : default_value;\n}\n\nmodule.exports = consumeOption;","'use strict';\n\nvar isArray = require('lodash/isArray');\n\n/**\n * @desc Turns arguments that aren't arrays into arrays\n * @param arg\n * @returns { any | any[] }\n */\nfunction toArray(arg) {\n switch (true) {\n case arg == null:\n return [];\n case isArray(arg):\n return arg;\n default:\n return [arg];\n }\n}\n\nmodule.exports = toArray;","'use strict';\n\nvar utils = require('./index');\nvar generateBreakpoints = require('./generateBreakpoints');\nvar Cache = require('../cache');\n\nvar isEmpty = utils.isEmpty;\n\n/**\n * Options used to generate the srcset attribute.\n * @typedef {object} srcset\n * @property {(number[]|string[])} [breakpoints] An array of breakpoints.\n * @property {number} [min_width] Minimal width of the srcset images.\n * @property {number} [max_width] Maximal width of the srcset images.\n * @property {number} [max_images] Number of srcset images to generate.\n * @property {object|string} [transformation] The transformation to use in the srcset urls.\n * @property {boolean} [sizes] Whether to calculate and add the sizes attribute.\n */\n\n/**\n * Helper function. Generates a single srcset item url\n *\n * @private\n * @param {string} public_id Public ID of the resource.\n * @param {number} width Width in pixels of the srcset item.\n * @param {object|string} transformation\n * @param {object} options Additional options.\n *\n * @return {string} Resulting URL of the item\n */\nfunction scaledUrl(public_id, width, transformation) {\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n\n var configParams = utils.extractUrlParams(options);\n transformation = transformation || options;\n configParams.raw_transformation = utils.generate_transformation_string([utils.extend({}, transformation), { crop: 'scale', width: width }]);\n\n return utils.url(public_id, configParams);\n}\n\n/**\n * If cache is enabled, get the breakpoints from the cache. If the values were not found in the cache,\n * or cache is not enabled, generate the values.\n * @param {srcset} srcset The srcset configuration parameters\n * @param {string} public_id\n * @param {object} options\n * @return {*|Array}\n */\nfunction getOrGenerateBreakpoints(public_id) {\n var srcset = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n var breakpoints = [];\n if (srcset.useCache) {\n breakpoints = Cache.get(public_id, options);\n if (!breakpoints) {\n breakpoints = [];\n }\n } else {\n breakpoints = generateBreakpoints(srcset);\n }\n return breakpoints;\n}\n\n/**\n * Helper function. Generates srcset attribute value of the HTML img tag\n * @private\n *\n * @param {string} public_id Public ID of the resource\n * @param {number[]} breakpoints An array of breakpoints (in pixels)\n * @param {object} transformation The transformation\n * @param {object} options Includes html tag options, transformation options\n * @return {string} Resulting srcset attribute value\n */\nfunction generateSrcsetAttribute(public_id, breakpoints, transformation, options) {\n options = utils.clone(options);\n utils.patchFetchFormat(options);\n return breakpoints.map(function (width) {\n return `${scaledUrl(public_id, width, transformation, options)} ${width}w`;\n }).join(', ');\n}\n\n/**\n * Helper function. Generates sizes attribute value of the HTML img tag\n * @private\n * @param {number[]} breakpoints An array of breakpoints.\n * @return {string} Resulting sizes attribute value\n */\nfunction generateSizesAttribute() {\n var breakpoints = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];\n\n return breakpoints.map(function (width) {\n return `(max-width: ${width}px) ${width}px`;\n }).join(', ');\n}\n\n/**\n * Helper function. Generates srcset and sizes attributes of the image tag\n *\n * Generated attributes are added to attributes argument\n *\n * @private\n * @param {string} publicId The public ID of the resource\n * @param {object} attributes Existing HTML attributes.\n * @param {srcset} srcsetData\n * @param {object} options Additional options.\n *\n * @return array The responsive attributes\n */\nfunction generateImageResponsiveAttributes(publicId) {\n var attributes = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var srcsetData = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n\n // Create both srcset and sizes here to avoid fetching breakpoints twice\n\n var responsiveAttributes = {};\n if (isEmpty(srcsetData)) {\n return responsiveAttributes;\n }\n\n var generateSizes = !attributes.sizes && srcsetData.sizes === true;\n\n var generateSrcset = !attributes.srcset;\n if (generateSrcset || generateSizes) {\n var breakpoints = getOrGenerateBreakpoints(publicId, srcsetData, options);\n\n if (generateSrcset) {\n var transformation = srcsetData.transformation;\n var srcsetAttr = generateSrcsetAttribute(publicId, breakpoints, transformation, options);\n if (!isEmpty(srcsetAttr)) {\n responsiveAttributes.srcset = srcsetAttr;\n }\n }\n\n if (generateSizes) {\n var sizesAttr = generateSizesAttribute(breakpoints);\n if (!isEmpty(sizesAttr)) {\n responsiveAttributes.sizes = sizesAttr;\n }\n }\n }\n return responsiveAttributes;\n}\n\n/**\n * Generate a media query\n *\n * @private\n * @param {object} options configuration options\n * @param {number|string} options.min_width\n * @param {number|string} options.max_width\n * @return {string} a media query string\n */\nfunction generateMediaAttr() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n\n var mediaQuery = [];\n if (options.min_width != null) {\n mediaQuery.push(`(min-width: ${options.min_width}px)`);\n }\n if (options.max_width != null) {\n mediaQuery.push(`(max-width: ${options.max_width}px)`);\n }\n return mediaQuery.join(' and ');\n}\n\nmodule.exports = {\n srcsetUrl: scaledUrl,\n generateSrcsetAttribute,\n generateSizesAttribute,\n generateMediaAttr,\n generateImageResponsiveAttributes\n};","\"use strict\";\n\n/* eslint-disable no-bitwise */\n// http://kevin.vanzonneveld.net\n// + original by: Webtoolkit.info (http://www.webtoolkit.info/)\n// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)\n// + improved by: sowberry\n// + tweaked by: Jack\n// + bugfixed by: Onno Marsman\n// + improved by: Yves Sucaet\n// + bugfixed by: Onno Marsman\n// + bugfixed by: Ulrich\n// + bugfixed by: Rafal Kukawski\n// + improved by: kirilloid\n// * example 1: utf8_encode('Kevin van Zonneveld')\n// * returns 1: 'Kevin van Zonneveld'\n\n/**\n * Encode the given string\n * @private\n * @param {string} argString the string to encode\n * @return {string}\n */\nmodule.exports = function utf8_encode(argString) {\n var c1 = void 0,\n enc = void 0,\n n = void 0;\n if (argString == null) {\n return \"\";\n }\n var string = argString + \"\";\n var utftext = \"\";\n var start = 0;\n var end = 0;\n var stringl = string.length;\n n = 0;\n while (n < stringl) {\n c1 = string.charCodeAt(n);\n enc = null;\n if (c1 < 128) {\n end++;\n } else if (c1 > 127 && c1 < 2048) {\n enc = String.fromCharCode(c1 >> 6 | 192, c1 & 63 | 128);\n } else {\n enc = String.fromCharCode(c1 >> 12 | 224, c1 >> 6 & 63 | 128, c1 & 63 | 128);\n }\n if (enc !== null) {\n if (end > start) {\n utftext += string.slice(start, end);\n }\n utftext += enc;\n start = n + 1;\n end = start;\n }\n n++;\n }\n if (end > start) {\n utftext += string.slice(start, stringl);\n }\n return utftext;\n};","'use strict';\n\nvar api = require('../api');\nvar v1_adapters = require('../utils').v1_adapters;\n\nv1_adapters(exports, api, {\n ping: 0,\n usage: 0,\n resource_types: 0,\n resources: 0,\n resources_by_tag: 1,\n resources_by_context: 2,\n resources_by_moderation: 2,\n resources_by_ids: 1,\n resource: 1,\n restore: 1,\n update: 1,\n delete_resources: 1,\n delete_resources_by_prefix: 1,\n delete_resources_by_tag: 1,\n delete_all_resources: 0,\n delete_derived_resources: 1,\n tags: 0,\n transformations: 0,\n transformation: 1,\n delete_transformation: 1,\n update_transformation: 2,\n create_transformation: 2,\n upload_presets: 0,\n upload_preset: 1,\n delete_upload_preset: 1,\n update_upload_preset: 1,\n create_upload_preset: 0,\n root_folders: 0,\n sub_folders: 1,\n delete_folder: 1,\n create_folder: 1,\n upload_mappings: 0,\n upload_mapping: 1,\n delete_upload_mapping: 1,\n update_upload_mapping: 1,\n create_upload_mapping: 1,\n list_streaming_profiles: 0,\n get_streaming_profile: 1,\n delete_streaming_profile: 1,\n update_streaming_profile: 1,\n create_streaming_profile: 1,\n publish_by_ids: 1,\n publish_by_tag: 1,\n publish_by_prefix: 1,\n update_resources_access_mode_by_prefix: 2,\n update_resources_access_mode_by_tag: 2,\n update_resources_access_mode_by_ids: 2,\n search: 1,\n delete_derived_by_transformation: 2,\n add_metadata_field: 1,\n list_metadata_fields: 1,\n delete_metadata_field: 1,\n metadata_field_by_field_id: 1,\n update_metadata_field: 2,\n update_metadata_field_datasource: 2,\n delete_datasource_entries: 2,\n restore_metadata_field_datasource: 2,\n order_metadata_field_datasource: 3\n});","'use strict';\n\nvar _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };\n\nvar v1 = require('../cloudinary');\nvar api = require('./api');\nvar uploader = require('./uploader');\nvar search = require('./search');\n\nvar v2 = _extends({}, v1, {\n api,\n uploader,\n search\n});\nmodule.exports = v2;","'use strict';\n\nvar _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nvar api = require('./api');\n\nvar _require = require('../utils'),\n isEmpty = _require.isEmpty,\n isNumber = _require.isNumber;\n\nvar Search = function () {\n function Search() {\n _classCallCheck(this, Search);\n\n this.query_hash = {\n sort_by: [],\n aggregate: [],\n with_field: []\n };\n }\n\n _createClass(Search, [{\n key: 'expression',\n value: function expression(value) {\n this.query_hash.expression = value;\n return this;\n }\n }, {\n key: 'max_results',\n value: function max_results(value) {\n this.query_hash.max_results = value;\n return this;\n }\n }, {\n key: 'next_cursor',\n value: function next_cursor(value) {\n this.query_hash.next_cursor = value;\n return this;\n }\n }, {\n key: 'aggregate',\n value: function aggregate(value) {\n var found = this.query_hash.aggregate.find(function (v) {\n return v === value;\n });\n\n if (!found) {\n this.query_hash.aggregate.push(value);\n }\n\n return this;\n }\n }, {\n key: 'with_field',\n value: function with_field(value) {\n var found = this.query_hash.with_field.find(function (v) {\n return v === value;\n });\n\n if (!found) {\n this.query_hash.with_field.push(value);\n }\n\n return this;\n }\n }, {\n key: 'sort_by',\n value: function sort_by(field_name) {\n var dir = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : \"desc\";\n\n var sort_bucket = void 0;\n sort_bucket = {};\n sort_bucket[field_name] = dir;\n\n // Check if this field name is already stored in the hash\n var previously_sorted_obj = this.query_hash.sort_by.find(function (sort_by) {\n return sort_by[field_name];\n });\n\n // Since objects are references in Javascript, we can update the reference we found\n // For example,\n if (previously_sorted_obj) {\n previously_sorted_obj[field_name] = dir;\n } else {\n this.query_hash.sort_by.push(sort_bucket);\n }\n\n return this;\n }\n }, {\n key: 'to_query',\n value: function to_query() {\n var _this = this;\n\n Object.keys(this.query_hash).forEach(function (k) {\n var v = _this.query_hash[k];\n if (!isNumber(v) && isEmpty(v)) {\n delete _this.query_hash[k];\n }\n });\n return this.query_hash;\n }\n }, {\n key: 'execute',\n value: function execute(options, callback) {\n if (callback === null) {\n callback = options;\n }\n options = options || {};\n return api.search(this.to_query(), options, callback);\n }\n }], [{\n key: 'instance',\n value: function instance() {\n return new Search();\n }\n }, {\n key: 'expression',\n value: function expression(value) {\n return this.instance().expression(value);\n }\n }, {\n key: 'max_results',\n value: function max_results(value) {\n return this.instance().max_results(value);\n }\n }, {\n key: 'next_cursor',\n value: function next_cursor(value) {\n return this.instance().next_cursor(value);\n }\n }, {\n key: 'aggregate',\n value: function aggregate(value) {\n return this.instance().aggregate(value);\n }\n }, {\n key: 'with_field',\n value: function with_field(value) {\n return this.instance().with_field(value);\n }\n }, {\n key: 'sort_by',\n value: function sort_by(field_name) {\n var dir = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'asc';\n\n return this.instance().sort_by(field_name, dir);\n }\n }]);\n\n return Search;\n}();\n\nmodule.exports = Search;","'use strict';\n\nvar uploader = require('../uploader');\nvar v1_adapters = require('../utils').v1_adapters;\n\nv1_adapters(exports, uploader, {\n unsigned_upload_stream: 1,\n upload_stream: 0,\n unsigned_upload: 2,\n upload: 1,\n upload_large_part: 0,\n upload_large: 1,\n upload_chunked: 1,\n upload_chunked_stream: 0,\n explicit: 1,\n destroy: 1,\n rename: 2,\n text: 1,\n generate_sprite: 1,\n multi: 1,\n explode: 1,\n add_tag: 2,\n remove_tag: 2,\n remove_all_tags: 1,\n add_context: 2,\n remove_all_context: 1,\n replace_tag: 2,\n create_archive: 0,\n create_zip: 0,\n update_metadata: 2\n});\n\nexports.direct_upload = uploader.direct_upload;\nexports.upload_tag_params = uploader.upload_tag_params;\nexports.upload_url = uploader.upload_url;\nexports.image_upload_tag = uploader.image_upload_tag;\nexports.unsigned_image_upload_tag = uploader.unsigned_image_upload_tag;\nexports.create_slideshow = uploader.create_slideshow;\nexports.download_generated_sprite = uploader.download_generated_sprite;\nexports.download_multi = uploader.download_multi;","const utils = require(\"./utils\");\nconst call_api = require(\"./api_client/call_api\");\n\nconst { extend, pickOnlyExistingValues } = utils;\n\nconst TRANSFORMATIONS_URI = \"transformations\";\n\nfunction deleteResourcesParams(options, params = {}) {\n return extend(params, pickOnlyExistingValues(options, \"keep_original\", \"invalidate\", \"next_cursor\", \"transformations\"));\n}\n\nexports.ping = function ping(callback, options = {}) {\n return call_api(\"get\", [\"ping\"], {}, callback, options);\n};\n\nexports.usage = function usage(callback, options = {}) {\n const uri = [\"usage\"];\n\n if (options.date) {\n uri.push(options.date);\n }\n\n return call_api(\"get\", uri, {}, callback, options);\n};\n\nexports.resource_types = function resource_types(callback, options = {}) {\n return call_api(\"get\", [\"resources\"], {}, callback, options);\n};\n\nexports.resources = function resources(callback, options = {}) {\n let resource_type, type, uri;\n resource_type = options.resource_type || \"image\";\n type = options.type;\n uri = [\"resources\", resource_type];\n if (type != null) {\n uri.push(type);\n }\n if ((options.start_at != null) && Object.prototype.toString.call(options.start_at) === '[object Date]') {\n options.start_at = options.start_at.toUTCString();\n }\n return call_api(\"get\", uri, pickOnlyExistingValues(options, \"next_cursor\", \"max_results\", \"prefix\", \"tags\", \"context\", \"direction\", \"moderations\", \"start_at\", \"metadata\"), callback, options);\n};\n\nexports.resources_by_tag = function resources_by_tag(tag, callback, options = {}) {\n let resource_type, uri;\n resource_type = options.resource_type || \"image\";\n uri = [\"resources\", resource_type, \"tags\", tag];\n return call_api(\"get\", uri, pickOnlyExistingValues(options, \"next_cursor\", \"max_results\", \"tags\", \"context\", \"direction\", \"moderations\", \"metadata\"), callback, options);\n};\n\nexports.resources_by_context = function resources_by_context(key, value, callback, options = {}) {\n let params, resource_type, uri;\n resource_type = options.resource_type || \"image\";\n uri = [\"resources\", resource_type, \"context\"];\n params = pickOnlyExistingValues(options, \"next_cursor\", \"max_results\", \"tags\", \"context\", \"direction\", \"moderations\", \"metadata\");\n params.key = key;\n if (value != null) {\n params.value = value;\n }\n return call_api(\"get\", uri, params, callback, options);\n};\n\nexports.resources_by_moderation = function resources_by_moderation(kind, status, callback, options = {}) {\n let resource_type, uri;\n resource_type = options.resource_type || \"image\";\n uri = [\"resources\", resource_type, \"moderations\", kind, status];\n return call_api(\"get\", uri, pickOnlyExistingValues(options, \"next_cursor\", \"max_results\", \"tags\", \"context\", \"direction\", \"moderations\", \"metadata\"), callback, options);\n};\n\nexports.resources_by_ids = function resources_by_ids(public_ids, callback, options = {}) {\n let params, resource_type, type, uri;\n resource_type = options.resource_type || \"image\";\n type = options.type || \"upload\";\n uri = [\"resources\", resource_type, type];\n params = pickOnlyExistingValues(options, \"tags\", \"context\", \"moderations\");\n params[\"public_ids[]\"] = public_ids;\n return call_api(\"get\", uri, params, callback, options);\n};\n\nexports.resource = function resource(public_id, callback, options = {}) {\n let resource_type, type, uri;\n resource_type = options.resource_type || \"image\";\n type = options.type || \"upload\";\n uri = [\"resources\", resource_type, type, public_id];\n return call_api(\"get\", uri, pickOnlyExistingValues(options, \"exif\", \"cinemagraph_analysis\", \"colors\", \"derived_next_cursor\", \"faces\", \"image_metadata\", \"pages\", \"phash\", \"coordinates\", \"max_results\", \"versions\", \"accessibility_analysis\"), callback, options);\n};\n\nexports.restore = function restore(public_ids, callback, options = {}) {\n options.content_type = 'json';\n let resource_type, type, uri;\n resource_type = options.resource_type || \"image\";\n type = options.type || \"upload\";\n uri = [\"resources\", resource_type, type, \"restore\"];\n return call_api(\"post\", uri, {\n public_ids: public_ids,\n versions: options.versions\n }, callback, options);\n};\n\nexports.update = function update(public_id, callback, options = {}) {\n let params, resource_type, type, uri;\n resource_type = options.resource_type || \"image\";\n type = options.type || \"upload\";\n uri = [\"resources\", resource_type, type, public_id];\n params = utils.updateable_resource_params(options);\n if (options.moderation_status != null) {\n params.moderation_status = options.moderation_status;\n }\n return call_api(\"post\", uri, params, callback, options);\n};\n\nexports.delete_resources = function delete_resources(public_ids, callback, options = {}) {\n let resource_type, type, uri;\n resource_type = options.resource_type || \"image\";\n type = options.type || \"upload\";\n uri = [\"resources\", resource_type, type];\n return call_api(\"delete\", uri, deleteResourcesParams(options, {\n \"public_ids[]\": public_ids\n }), callback, options);\n};\n\nexports.delete_resources_by_prefix = function delete_resources_by_prefix(prefix, callback, options = {}) {\n let resource_type, type, uri;\n resource_type = options.resource_type || \"image\";\n type = options.type || \"upload\";\n uri = [\"resources\", resource_type, type];\n return call_api(\"delete\", uri, deleteResourcesParams(options, {\n prefix: prefix\n }), callback, options);\n};\n\nexports.delete_resources_by_tag = function delete_resources_by_tag(tag, callback, options = {}) {\n let resource_type, uri;\n resource_type = options.resource_type || \"image\";\n uri = [\"resources\", resource_type, \"tags\", tag];\n return call_api(\"delete\", uri, deleteResourcesParams(options), callback, options);\n};\n\nexports.delete_all_resources = function delete_all_resources(callback, options = {}) {\n let resource_type, type, uri;\n\n resource_type = options.resource_type || \"image\";\n type = options.type || \"upload\";\n uri = [\"resources\", resource_type, type];\n return call_api(\"delete\", uri, deleteResourcesParams(options, {\n all: true\n }), callback, options);\n};\n\nexports.delete_derived_resources = function delete_derived_resources(derived_resource_ids, callback, options = {}) {\n let uri;\n uri = [\"derived_resources\"];\n return call_api(\"delete\", uri, {\n \"derived_resource_ids[]\": derived_resource_ids\n }, callback, options);\n};\n\nexports.delete_derived_by_transformation = function delete_derived_by_transformation(\n public_ids,\n transformations,\n callback,\n options = {}\n) {\n let params, resource_type, type, uri;\n resource_type = options.resource_type || \"image\";\n type = options.type || \"upload\";\n uri = \"resources/\" + resource_type + \"/\" + type;\n params = extend({\n \"public_ids[]\": public_ids\n }, pickOnlyExistingValues(options, \"invalidate\"));\n params.keep_original = true;\n params.transformations = utils.build_eager(transformations);\n return call_api(\"delete\", uri, params, callback, options);\n};\n\nexports.tags = function tags(callback, options = {}) {\n let resource_type, uri;\n resource_type = options.resource_type || \"image\";\n uri = [\"tags\", resource_type];\n return call_api(\"get\", uri, pickOnlyExistingValues(options, \"next_cursor\", \"max_results\", \"prefix\"), callback, options);\n};\n\nexports.transformations = function transformations(callback, options = {}) {\n const params = pickOnlyExistingValues(options, \"next_cursor\", \"max_results\", \"named\");\n return call_api(\"get\", TRANSFORMATIONS_URI, params, callback, options);\n};\n\nexports.transformation = function transformation(transformationName, callback, options = {}) {\n const params = pickOnlyExistingValues(options, \"next_cursor\", \"max_results\");\n params.transformation = utils.build_eager(transformationName);\n return call_api(\"get\", TRANSFORMATIONS_URI, params, callback, options);\n};\n\nexports.delete_transformation = function delete_transformation(transformationName, callback, options = {}) {\n const params = {};\n params.transformation = utils.build_eager(transformationName);\n return call_api(\"delete\", TRANSFORMATIONS_URI, params, callback, options);\n};\n\nexports.update_transformation = function update_transformation(transformationName, updates, callback, options = {}) {\n const params = pickOnlyExistingValues(updates, \"allowed_for_strict\");\n params.transformation = utils.build_eager(transformationName);\n if (updates.unsafe_update != null) {\n params.unsafe_update = utils.build_eager(updates.unsafe_update);\n }\n return call_api(\"put\", TRANSFORMATIONS_URI, params, callback, options);\n};\n\nexports.create_transformation = function create_transformation(name, definition, callback, options = {}) {\n const params = { name };\n params.transformation = utils.build_eager(definition);\n return call_api(\"post\", TRANSFORMATIONS_URI, params, callback, options);\n};\n\nexports.upload_presets = function upload_presets(callback, options = {}) {\n return call_api(\"get\", [\"upload_presets\"], pickOnlyExistingValues(options, \"next_cursor\", \"max_results\"), callback, options);\n};\n\nexports.upload_preset = function upload_preset(name, callback, options = {}) {\n let uri;\n uri = [\"upload_presets\", name];\n return call_api(\"get\", uri, {}, callback, options);\n};\n\nexports.delete_upload_preset = function delete_upload_preset(name, callback, options = {}) {\n let uri;\n uri = [\"upload_presets\", name];\n return call_api(\"delete\", uri, {}, callback, options);\n};\n\nexports.update_upload_preset = function update_upload_preset(name, callback, options = {}) {\n let params, uri;\n uri = [\"upload_presets\", name];\n params = utils.merge(utils.clear_blank(utils.build_upload_params(options)), pickOnlyExistingValues(options, \"unsigned\", \"disallow_public_id\", \"live\"));\n return call_api(\"put\", uri, params, callback, options);\n};\n\nexports.create_upload_preset = function create_upload_preset(callback, options = {}) {\n let params, uri;\n uri = [\"upload_presets\"];\n params = utils.merge(utils.clear_blank(utils.build_upload_params(options)), pickOnlyExistingValues(options, \"name\", \"unsigned\", \"disallow_public_id\", \"live\"));\n return call_api(\"post\", uri, params, callback, options);\n};\n\nexports.root_folders = function root_folders(callback, options = {}) {\n let uri, params;\n uri = [\"folders\"];\n params = pickOnlyExistingValues(options, \"next_cursor\", \"max_results\");\n return call_api(\"get\", uri, params, callback, options);\n};\n\nexports.sub_folders = function sub_folders(path, callback, options = {}) {\n let uri, params;\n uri = [\"folders\", path];\n params = pickOnlyExistingValues(options, \"next_cursor\", \"max_results\");\n return call_api(\"get\", uri, params, callback, options);\n};\n\n/**\n * Creates an empty folder\n *\n * @param {string} path The folder path to create\n * @param {function} callback Callback function\n * @param {object} options Configuration options\n * @returns {*}\n */\nexports.create_folder = function create_folder(path, callback, options = {}) {\n let uri;\n uri = [\"folders\", path];\n return call_api(\"post\", uri, {}, callback, options);\n};\n\nexports.delete_folder = function delete_folder(path, callback, options = {}) {\n let uri;\n uri = [\"folders\", path];\n return call_api(\"delete\", uri, {}, callback, options);\n};\n\nexports.upload_mappings = function upload_mappings(callback, options = {}) {\n let params;\n params = pickOnlyExistingValues(options, \"next_cursor\", \"max_results\");\n return call_api(\"get\", \"upload_mappings\", params, callback, options);\n};\n\nexports.upload_mapping = function upload_mapping(name, callback, options = {}) {\n if (name == null) {\n name = null;\n }\n return call_api(\"get\", 'upload_mappings', {\n folder: name\n }, callback, options);\n};\n\nexports.delete_upload_mapping = function delete_upload_mapping(name, callback, options = {}) {\n return call_api(\"delete\", 'upload_mappings', {\n folder: name\n }, callback, options);\n};\n\nexports.update_upload_mapping = function update_upload_mapping(name, callback, options = {}) {\n let params;\n params = pickOnlyExistingValues(options, \"template\");\n params.folder = name;\n return call_api(\"put\", 'upload_mappings', params, callback, options);\n};\n\nexports.create_upload_mapping = function create_upload_mapping(name, callback, options = {}) {\n let params;\n params = pickOnlyExistingValues(options, \"template\");\n params.folder = name;\n return call_api(\"post\", 'upload_mappings', params, callback, options);\n};\n\nfunction publishResource(byKey, value, callback, options = {}) {\n let params, resource_type, uri;\n params = pickOnlyExistingValues(options, \"type\", \"invalidate\", \"overwrite\");\n params[byKey] = value;\n resource_type = options.resource_type || \"image\";\n uri = [\"resources\", resource_type, \"publish_resources\"];\n options = extend({\n resource_type: resource_type\n }, options);\n return call_api(\"post\", uri, params, callback, options);\n}\n\nexports.publish_by_prefix = function publish_by_prefix(prefix, callback, options = {}) {\n return publishResource(\"prefix\", prefix, callback, options);\n};\n\nexports.publish_by_tag = function publish_by_tag(tag, callback, options = {}) {\n return publishResource(\"tag\", tag, callback, options);\n};\n\nexports.publish_by_ids = function publish_by_ids(public_ids, callback, options = {}) {\n return publishResource(\"public_ids\", public_ids, callback, options);\n};\n\nexports.list_streaming_profiles = function list_streaming_profiles(callback, options = {}) {\n return call_api(\"get\", \"streaming_profiles\", {}, callback, options);\n};\n\nexports.get_streaming_profile = function get_streaming_profile(name, callback, options = {}) {\n return call_api(\"get\", \"streaming_profiles/\" + name, {}, callback, options);\n};\n\nexports.delete_streaming_profile = function delete_streaming_profile(name, callback, options = {}) {\n return call_api(\"delete\", \"streaming_profiles/\" + name, {}, callback, options);\n};\n\nexports.update_streaming_profile = function update_streaming_profile(name, callback, options = {}) {\n let params;\n params = utils.build_streaming_profiles_param(options);\n return call_api(\"put\", \"streaming_profiles/\" + name, params, callback, options);\n};\n\nexports.create_streaming_profile = function create_streaming_profile(name, callback, options = {}) {\n let params;\n params = utils.build_streaming_profiles_param(options);\n params.name = name;\n return call_api(\"post\", 'streaming_profiles', params, callback, options);\n};\n\nfunction updateResourcesAccessMode(access_mode, by_key, value, callback, options = {}) {\n let params, resource_type, type;\n resource_type = options.resource_type || \"image\";\n type = options.type || \"upload\";\n params = {\n access_mode: access_mode\n };\n params[by_key] = value;\n return call_api(\"post\", \"resources/\" + resource_type + \"/\" + type + \"/update_access_mode\", params, callback, options);\n}\n\nexports.search = function search(params, callback, options = {}) {\n options.content_type = 'json';\n return call_api(\"post\", \"resources/search\", params, callback, options);\n};\n\nexports.update_resources_access_mode_by_prefix = function update_resources_access_mode_by_prefix(\n access_mode,\n prefix,\n callback,\n options = {}\n) {\n return updateResourcesAccessMode(access_mode, \"prefix\", prefix, callback, options);\n};\n\nexports.update_resources_access_mode_by_tag = function update_resources_access_mode_by_tag(\n access_mode,\n tag,\n callback,\n options = {}\n) {\n return updateResourcesAccessMode(access_mode, \"tag\", tag, callback, options);\n};\n\nexports.update_resources_access_mode_by_ids = function update_resources_access_mode_by_ids(\n access_mode,\n ids,\n callback,\n options = {}\n) {\n return updateResourcesAccessMode(access_mode, \"public_ids[]\", ids, callback, options);\n};\n\n/**\n * Creates a new metadata field definition\n *\n * @see https://cloudinary.com/documentation/admin_api#create_a_metadata_field\n *\n * @param {Object} field The field to add\n * @param {Function} callback Callback function\n * @param {Object} options Configuration options\n *\n * @return {Object}\n */\nexports.add_metadata_field = function add_metadata_field(field, callback, options = {}) {\n const params = pickOnlyExistingValues(field, \"external_id\", \"type\", \"label\", \"mandatory\", \"default_value\", \"validation\", \"datasource\");\n options.content_type = \"json\";\n return call_api(\"post\", [\"metadata_fields\"], params, callback, options);\n};\n\n/**\n * Returns a list of all metadata field definitions\n *\n * @see https://cloudinary.com/documentation/admin_api#get_metadata_fields\n *\n * @param {Function} callback Callback function\n * @param {Object} options Configuration options\n *\n * @return {Object}\n */\nexports.list_metadata_fields = function list_metadata_fields(callback, options = {}) {\n return call_api(\"get\", [\"metadata_fields\"], {}, callback, options);\n};\n\n/**\n * Deletes a metadata field definition.\n *\n * The field should no longer be considered a valid candidate for all other endpoints\n *\n * @see https://cloudinary.com/documentation/admin_api#delete_a_metadata_field_by_external_id\n *\n * @param {String} field_external_id The external id of the field to delete\n * @param {Function} callback Callback function\n * @param {Object} options Configuration options\n *\n * @return {Object}\n */\nexports.delete_metadata_field = function delete_metadata_field(field_external_id, callback, options = {}) {\n return call_api(\"delete\", [\"metadata_fields\", field_external_id], {}, callback, options);\n};\n\n/**\n * Get a metadata field by external id\n *\n * @see https://cloudinary.com/documentation/admin_api#get_a_metadata_field_by_external_id\n *\n * @param {String} external_id The ID of the metadata field to retrieve\n * @param {Function} callback Callback function\n * @param {Object} options Configuration options\n *\n * @return {Object}\n */\nexports.metadata_field_by_field_id = function metadata_field_by_field_id(external_id, callback, options = {}) {\n return call_api(\"get\", [\"metadata_fields\", external_id], {}, callback, options);\n};\n\n/**\n * Updates a metadata field by external id\n *\n * Updates a metadata field definition (partially, no need to pass the entire object) passed as JSON data.\n * See {@link https://cloudinary.com/documentation/admin_api#generic_structure_of_a_metadata_field Generic structure of a metadata field} for details.\n *\n * @see https://cloudinary.com/documentation/admin_api#update_a_metadata_field_by_external_id\n *\n * @param {String} external_id The ID of the metadata field to update\n * @param {Object} field Updated values of metadata field\n * @param {Function} callback Callback function\n * @param {Object} options Configuration options\n *\n * @return {Object}\n */\nexports.update_metadata_field = function update_metadata_field(external_id, field, callback, options = {}) {\n const params = pickOnlyExistingValues(field, \"external_id\", \"type\", \"label\", \"mandatory\", \"default_value\", \"validation\", \"datasource\");\n options.content_type = \"json\";\n return call_api(\"put\", [\"metadata_fields\", external_id], params, callback, options);\n};\n\n/**\n * Updates a metadata field datasource\n *\n * Updates the datasource of a supported field type (currently only enum and set), passed as JSON data. The\n * update is partial: datasource entries with an existing external_id will be updated and entries with new\n * external_id’s (or without external_id’s) will be appended.\n *\n * @see https://cloudinary.com/documentation/admin_api#update_a_metadata_field_datasource\n *\n * @param {String} field_external_id The ID of the field to update\n * @param {Object} entries_external_id Updated values for datasource\n * @param {Function} callback Callback function\n * @param {Object} options Configuration options\n *\n * @return {Object}\n */\nexports.update_metadata_field_datasource = function update_metadata_field_datasource(field_external_id, entries_external_id, callback, options = {}) {\n const params = pickOnlyExistingValues(entries_external_id, \"values\");\n options.content_type = \"json\";\n return call_api(\"put\", [\"metadata_fields\", field_external_id, \"datasource\"], params, callback, options);\n};\n\n/**\n * Deletes entries in a metadata field datasource\n *\n * Deletes (blocks) the datasource entries for a specified metadata field definition. Sets the state of the\n * entries to inactive. This is a soft delete, the entries still exist under the hood and can be activated again\n * with the restore datasource entries method.\n *\n * @see https://cloudinary.com/documentation/admin_api#delete_entries_in_a_metadata_field_datasource\n *\n * @param {String} field_external_id The ID of the metadata field\n * @param {Array} entries_external_id An array of IDs of datasource entries to delete\n * @param {Function} callback Callback function\n * @param {Object} options Configuration options\n *\n * @return {Object}\n */\nexports.delete_datasource_entries = function delete_datasource_entries(field_external_id, entries_external_id, callback, options = {}) {\n options.content_type = \"json\";\n const params = { external_ids: entries_external_id };\n return call_api(\"delete\", [\"metadata_fields\", field_external_id, \"datasource\"], params, callback, options);\n};\n\n/**\n * Restores entries in a metadata field datasource\n *\n * Restores (unblocks) any previously deleted datasource entries for a specified metadata field definition.\n * Sets the state of the entries to active.\n *\n * @see https://cloudinary.com/documentation/admin_api#restore_entries_in_a_metadata_field_datasource\n *\n * @param {String} field_external_id The ID of the metadata field\n * @param {Array} entries_external_id An array of IDs of datasource entries to delete\n * @param {Function} callback Callback function\n * @param {Object} options Configuration options\n *\n * @return {Object}\n */\nexports.restore_metadata_field_datasource = function restore_metadata_field_datasource(field_external_id, entries_external_id, callback, options = {}) {\n options.content_type = \"json\";\n const params = { external_ids: entries_external_id };\n return call_api(\"post\", [\"metadata_fields\", field_external_id, \"datasource_restore\"], params, callback, options);\n};\n\n/**\n * Sorts metadata field datasource. Currently supports only value\n * @param {String} field_external_id The ID of the metadata field\n * @param {String} sort_by Criteria for the sort. Currently supports only value\n * @param {String} direction Optional (gets either asc or desc)\n * @param {Function} callback Callback function\n * @param {Object} options Configuration options\n *\n * @return {Object}\n */\nexports.order_metadata_field_datasource = function order_metadata_field_datasource(field_external_id, sort_by, direction, callback, options = {}) {\n options.content_type = \"json\";\n const params = { order_by: sort_by, direction: direction};\n return call_api(\"post\", [\"metadata_fields\", field_external_id, \"datasource\", \"order\"], params, callback, options);\n};\n","// eslint-disable-next-line import/order\nconst config = require(\"../config\");\nconst utils = require(\"../utils\");\nconst ensureOption = require('../utils/ensureOption').defaults(config());\nconst execute_request = require('./execute_request');\n\nconst { ensurePresenceOf } = utils;\n\nfunction call_account_api(method, uri, params, callback, options) {\n ensurePresenceOf({ method, uri });\n const cloudinary = ensureOption(options, \"upload_prefix\", \"https://api.cloudinary.com\");\n const account_id = ensureOption(options, \"account_id\");\n const api_url = [cloudinary, \"v1_1\", \"provisioning\", \"accounts\", account_id].concat(uri).join(\"/\");\n const auth = {\n key: ensureOption(options, \"provisioning_api_key\"),\n secret: ensureOption(options, \"provisioning_api_secret\")\n };\n\n return execute_request(method, params, auth, api_url, callback, options);\n}\n\nmodule.exports = call_account_api;\n","// eslint-disable-next-line import/order\nconst config = require(\"../config\");\nconst utils = require(\"../utils\");\nconst ensureOption = require('../utils/ensureOption').defaults(config());\nconst execute_request = require('./execute_request');\n\nconst { ensurePresenceOf } = utils;\n\nfunction call_api(method, uri, params, callback, options) {\n ensurePresenceOf({ method, uri });\n const api_url = utils.base_api_url(uri, options);\n let auth = {};\n if (options.oauth_token || config().oauth_token){\n auth = {\n oauth_token: ensureOption(options, \"oauth_token\")\n };\n } else {\n auth = {\n key: ensureOption(options, \"api_key\"),\n secret: ensureOption(options, \"api_secret\")\n };\n }\n return execute_request(method, params, auth, api_url, callback, options);\n}\n\nmodule.exports = call_api;\n","// eslint-disable-next-line import/order\nconst config = require(\"../config\");\nconst https = /^http:/.test(config().upload_prefix) ? require('http') : require('https');\nconst querystring = require(\"querystring\");\nconst Q = require('q');\nconst url = require('url');\nconst utils = require(\"../utils\");\nconst ensureOption = require('../utils/ensureOption').defaults(config());\n\nconst { extend, includes } = utils;\n\nfunction execute_request(method, params, auth, api_url, callback, options = {}) {\n method = method.toUpperCase();\n const deferred = Q.defer();\n\n let query_params, handle_response; // declare to user later\n let key = auth.key;\n let secret = auth.secret;\n let oauth_token = auth.oauth_token;\n let content_type = 'application/x-www-form-urlencoded';\n\n if (options.content_type === 'json') {\n query_params = JSON.stringify(params);\n content_type = 'application/json';\n } else {\n query_params = querystring.stringify(params);\n }\n\n if (method === \"GET\") {\n api_url += \"?\" + query_params;\n }\n\n let request_options = url.parse(api_url);\n\n request_options = extend(request_options, {\n method: method,\n headers: {\n 'Content-Type': content_type,\n 'User-Agent': utils.getUserAgent()\n }\n });\n\n if (oauth_token) {\n request_options.headers.Authorization = `Bearer ${oauth_token}`;\n } else {\n request_options.auth = key + \":\" + secret\n }\n\n if (options.agent != null) {\n request_options.agent = options.agent;\n }\n if (method !== \"GET\") {\n request_options.headers['Content-Length'] = Buffer.byteLength(query_params);\n }\n handle_response = function (res) {\n if (includes([200, 400, 401, 403, 404, 409, 420, 500], res.statusCode)) {\n let buffer = \"\";\n let error = false;\n res.on(\"data\", function (d) {\n buffer += d;\n return buffer;\n });\n res.on(\"end\", function () {\n let result;\n if (error) {\n return;\n }\n try {\n result = JSON.parse(buffer);\n } catch (e) {\n result = {\n error: {\n message: \"Server return invalid JSON response. Status Code \" + res.statusCode\n }\n };\n }\n\n if (result.error) {\n result.error.http_code = res.statusCode;\n } else {\n result.rate_limit_allowed = parseInt(res.headers[\"x-featureratelimit-limit\"]);\n result.rate_limit_reset_at = new Date(res.headers[\"x-featureratelimit-reset\"]);\n result.rate_limit_remaining = parseInt(res.headers[\"x-featureratelimit-remaining\"]);\n }\n\n if (result.error) {\n deferred.reject(Object.assign({\n request_options,\n query_params\n }, result));\n } else {\n deferred.resolve(result);\n }\n if (typeof callback === \"function\") {\n callback(result);\n }\n });\n res.on(\"error\", function (e) {\n error = true;\n let err_obj = {\n error: {\n message: e,\n http_code: res.statusCode,\n request_options,\n query_params\n }\n };\n deferred.reject(err_obj.error);\n if (typeof callback === \"function\") {\n callback(err_obj);\n }\n });\n } else {\n let err_obj = {\n error: {\n message: \"Server returned unexpected status code - \" + res.statusCode,\n http_code: res.statusCode,\n request_options,\n query_params\n }\n };\n deferred.reject(err_obj.error);\n if (typeof callback === \"function\") {\n callback(err_obj);\n }\n }\n };\n\n const request = https.request(request_options, handle_response);\n request.on(\"error\", function (e) {\n deferred.reject(e);\n return typeof callback === \"function\" ? callback({ error: e }) : void 0;\n });\n request.setTimeout(ensureOption(options, \"timeout\", 60000));\n if (method !== \"GET\") {\n request.write(query_params);\n }\n request.end();\n return deferred.promise;\n}\n\nmodule.exports = execute_request;\n","/**\n * Authorization Token\n * @module auth_token\n */\n\nconst crypto = require('crypto');\nconst smart_escape = require('./utils/encoding/smart_escape');\n\nconst unsafe = /([ \"#%&'/:;<=>?@[\\]^`{|}~]+)/g;\n\nfunction digest(message, key) {\n return crypto.createHmac(\"sha256\", Buffer.from(key, \"hex\")).update(message).digest('hex');\n}\n\n/**\n * Escape url using lowercase hex code\n * @param {string} url a url string\n * @return {string} escaped url\n */\nfunction escapeToLower(url) {\n const safeUrl = smart_escape(url, unsafe);\n return safeUrl.replace(/%../g, function (match) {\n return match.toLowerCase();\n });\n}\n\n/**\n * Auth token options\n * @typedef {object} authTokenOptions\n * @property {string} [token_name=\"__cld_token__\"] The name of the token.\n * @property {string} key The secret key required to sign the token.\n * @property {string} ip The IP address of the client.\n * @property {number} start_time=now The start time of the token in seconds from epoch.\n * @property {string} expiration The expiration time of the token in seconds from epoch.\n * @property {string} duration The duration of the token (from start_time).\n * @property {string} acl The ACL for the token.\n * @property {string} url The URL to authentication in case of a URL token.\n *\n */\n\n/**\n * Generate an authorization token\n * @param {authTokenOptions} options\n * @returns {string} the authorization token\n */\nmodule.exports = function (options) {\n const tokenName = options.token_name ? options.token_name : \"__cld_token__\";\n const tokenSeparator = \"~\";\n if (options.expiration == null) {\n if (options.duration != null) {\n let start = options.start_time != null ? options.start_time : Math.round(Date.now() / 1000);\n options.expiration = start + options.duration;\n } else {\n throw new Error(\"Must provide either expiration or duration\");\n }\n }\n let tokenParts = [];\n if (options.ip != null) {\n tokenParts.push(`ip=${options.ip}`);\n }\n if (options.start_time != null) {\n tokenParts.push(`st=${options.start_time}`);\n }\n tokenParts.push(`exp=${options.expiration}`);\n if (options.acl != null) {\n tokenParts.push(`acl=${escapeToLower(options.acl)}`);\n }\n let toSign = [...tokenParts];\n if (options.url != null && options.acl == null) {\n let url = escapeToLower(options.url);\n toSign.push(`url=${url}`);\n }\n let auth = digest(toSign.join(tokenSeparator), options.key);\n tokenParts.push(`hmac=${auth}`);\n\n if (!options.url && !options.acl) {\n throw 'authToken must contain either an acl or a url property'\n }\n\n return `${tokenName}=${tokenParts.join(tokenSeparator)}`;\n};\n","/* eslint-disable class-methods-use-this */\n\nconst CACHE = Symbol.for(\"com.cloudinary.cache\");\nconst CACHE_ADAPTER = Symbol.for(\"com.cloudinary.cacheAdapter\");\nconst { ensurePresenceOf, generate_transformation_string } = require('./utils');\n\n/**\n * The adapter used to communicate with the underlying cache storage\n */\nclass CacheAdapter {\n /**\n * Get a value from the cache\n * @param {string} publicId\n * @param {string} type\n * @param {string} resourceType\n * @param {string} transformation\n * @param {string} format\n * @return {*} the value associated with the provided arguments\n */\n get(publicId, type, resourceType, transformation, format) {}\n\n /**\n * Set a new value in the cache\n * @param {string} publicId\n * @param {string} type\n * @param {string} resourceType\n * @param {string} transformation\n * @param {string} format\n * @param {*} value\n */\n set(publicId, type, resourceType, transformation, format, value) {}\n\n /**\n * Delete all values in the cache\n */\n flushAll() {}\n}\n/**\n * @class Cache\n * Stores and retrieves values identified by publicId / options pairs\n */\nconst Cache = {\n /**\n * The adapter interface. Extend this class to implement a specific adapter.\n * @type CacheAdapter\n */\n CacheAdapter,\n /**\n * Set the cache adapter\n * @param {CacheAdapter} adapter The cache adapter\n */\n setAdapter(adapter) {\n if (this.adapter) {\n console.warn(\"Overriding existing cache adapter\");\n }\n this.adapter = adapter;\n },\n /**\n * Get the adapter the Cache is using\n * @return {CacheAdapter} the current cache adapter\n */\n getAdapter() {\n return this.adapter;\n },\n /**\n * Get an item from the cache\n * @param {string} publicId\n * @param {object} options\n * @return {*}\n */\n get(publicId, options) {\n if (!this.adapter) { return undefined; }\n ensurePresenceOf({ publicId });\n let transformation = generate_transformation_string({ ...options });\n return this.adapter.get(\n publicId, options.type || 'upload',\n options.resource_type || 'image',\n transformation,\n options.format\n );\n },\n /**\n * Set a new value in the cache\n * @param {string} publicId\n * @param {object} options\n * @param {*} value\n * @return {*}\n */\n set(publicId, options, value) {\n if (!this.adapter) { return undefined; }\n ensurePresenceOf({ publicId, value });\n let transformation = generate_transformation_string({ ...options });\n return this.adapter.set(\n publicId,\n options.type || 'upload',\n options.resource_type || 'image',\n transformation,\n options.format,\n value\n );\n },\n /**\n * Clear all items in the cache\n * @return {*} Returns the value from the adapter's flushAll() method\n */\n flushAll() {\n if (!this.adapter) { return undefined; }\n return this.adapter.flushAll();\n }\n\n};\n\n// Define singleton property\nObject.defineProperty(Cache, \"instance\", {\n get() {\n return global[CACHE];\n }\n});\nObject.defineProperty(Cache, \"adapter\", {\n /**\n *\n * @return {CacheAdapter} The current cache adapter\n */\n get() {\n return global[CACHE_ADAPTER];\n },\n /**\n * Set the cache adapter to be used by Cache\n * @param {CacheAdapter} adapter Cache adapter\n */\n set(adapter) {\n global[CACHE_ADAPTER] = adapter;\n }\n});\nObject.freeze(Cache);\n\n// Instantiate the singleton\nlet symbols = Object.getOwnPropertySymbols(global);\nif (symbols.indexOf(CACHE) < 0) {\n global[CACHE] = Cache;\n}\n\n/**\n * Store key value pairs\n\n */\nmodule.exports = Cache;\n","const _ = require('lodash');\nexports.config = require(\"./config\");\nexports.utils = require(\"./utils\");\nexports.uploader = require(\"./uploader\");\nexports.api = require(\"./api\");\nlet account = require(\"./provisioning/account\");\n\nexports.provisioning = {\n account: account\n};\nexports.PreloadedFile = require(\"./preloaded_file\");\nexports.Cache = require('./cache');\n\nconst cloudinary = module.exports;\n\nconst optionConsume = cloudinary.utils.option_consume;\n\nexports.url = function url(public_id, options) {\n options = _.extend({}, options);\n return cloudinary.utils.url(public_id, options);\n};\n\nconst { generateImageResponsiveAttributes, generateMediaAttr } = require('./utils/srcsetUtils');\n\n/**\n * Helper function, allows chaining transformation to the end of transformation list\n *\n * @private\n * @param {object} options Original options\n * @param {object|object[]} transformation Transformations to chain at the end\n *\n * @return {object} Resulting options\n */\nfunction chainTransformations(options, transformation = []) {\n // preserve url options\n let urlOptions = cloudinary.utils.extractUrlParams(options);\n let currentTransformation = cloudinary.utils.extractTransformationParams(options);\n transformation = cloudinary.utils.build_array(transformation);\n urlOptions.transformation = [currentTransformation, ...transformation];\n return urlOptions;\n}\n\n/**\n * Generate an HTML img tag with a Cloudinary URL\n * @param {string} source A Public ID or a URL\n * @param {object} options Configuration options\n * @param {srcset} options.srcset srcset options\n * @param {object} options.attributes HTML attributes\n * @param {number} options.html_width (deprecated) The HTML tag width\n * @param {number} options.html_height (deprecated) The HTML tag height\n * @param {boolean} options.client_hints Don't implement the client side responsive function.\n * This argument can override the the same option in the global configuration.\n * @param {boolean} options.responsive Setup the tag for the client side responsive function.\n * @param {boolean} options.hidpi Setup the tag for the client side auto dpr function.\n * @param {boolean} options.responsive_placeholder A place holder image URL to use with.\n * the client side responsive function\n * @return {string} An HTML img tag\n */\nexports.image = function image(source, options) {\n let localOptions = _.extend({}, options);\n let srcsetParam = optionConsume(localOptions, 'srcset');\n let attributes = optionConsume(localOptions, 'attributes', {});\n let src = cloudinary.utils.url(source, localOptions);\n if (\"html_width\" in localOptions) localOptions.width = optionConsume(localOptions, \"html_width\");\n if (\"html_height\" in localOptions) localOptions.height = optionConsume(localOptions, \"html_height\");\n\n let client_hints = optionConsume(localOptions, \"client_hints\", cloudinary.config().client_hints);\n let responsive = optionConsume(localOptions, \"responsive\");\n let hidpi = optionConsume(localOptions, \"hidpi\");\n\n if ((responsive || hidpi) && !client_hints) {\n localOptions[\"data-src\"] = src;\n let classes = [responsive ? \"cld-responsive\" : \"cld-hidpi\"];\n let current_class = optionConsume(localOptions, \"class\");\n if (current_class) classes.push(current_class);\n localOptions.class = classes.join(\" \");\n src = optionConsume(localOptions, \"responsive_placeholder\", cloudinary.config().responsive_placeholder);\n if (src === \"blank\") {\n src = cloudinary.BLANK;\n }\n }\n let html = \")} [options.source_types] Specify which\n * source type the tag should include. defaults to webm, mp4 and ogv.\n * @param {String} [options.source_transformation] specific transformations\n * to use for a specific source type.\n * @param {(String|Object)} [options.poster] image URL or\n * poster options that may include a public_id key and\n * poster-specific transformations\n * @example Example of generating a video tag: \n * cloudinary.video(\"mymovie.mp4\");\n * cloudinary.video(\"mymovie.mp4\", {source_types: 'webm'});\n * cloudinary.video(\"mymovie.ogv\", {poster: \"myspecialplaceholder.jpg\"});\n * cloudinary.video(\"mymovie.webm\", {source_types: ['webm', 'mp4'], poster: {effect: 'sepia'}});\n * @return {string} HTML video tag\n */\nexports.video = function video(public_id, options) {\n options = _.extend({}, options);\n public_id = public_id.replace(/\\.(mp4|ogv|webm)$/, '');\n let source_types = optionConsume(options, 'source_types', []);\n let source_transformation = optionConsume(options, 'source_transformation', {});\n let sources = optionConsume(options, 'sources', []);\n let fallback = optionConsume(options, 'fallback_content', '');\n\n if (source_types.length === 0) source_types = cloudinary.utils.DEFAULT_VIDEO_SOURCE_TYPES;\n let video_options = _.cloneDeep(options);\n\n if (video_options.hasOwnProperty('poster')) {\n if (_.isPlainObject(video_options.poster)) {\n if (video_options.poster.hasOwnProperty('public_id')) {\n video_options.poster = cloudinary.utils.url(video_options.poster.public_id, video_options.poster);\n } else {\n video_options.poster = cloudinary.utils.url(public_id, _.extend({}, cloudinary.utils.DEFAULT_POSTER_OPTIONS, video_options.poster));\n }\n }\n } else {\n video_options.poster = cloudinary.utils.url(public_id, _.extend({}, cloudinary.utils.DEFAULT_POSTER_OPTIONS, options));\n }\n\n if (!video_options.poster) delete video_options.poster;\n\n let html = ' 1;\n let has_sources = _.isArray(sources) && sources.length > 0;\n let source = public_id;\n if (!multi_source_types && !has_sources) {\n source = source + '.' + cloudinary.utils.build_array(source_types)[0];\n }\n let src = cloudinary.utils.url(source, video_options);\n if (!multi_source_types && !has_sources) video_options.src = src;\n if (video_options.hasOwnProperty(\"html_width\")) video_options.width = optionConsume(video_options, 'html_width');\n if (video_options.hasOwnProperty(\"html_height\")) video_options.height = optionConsume(video_options, 'html_height');\n html = html + cloudinary.utils.html_attrs(video_options) + '>';\n if (multi_source_types && !has_sources) {\n sources = source_types.map(source_type => ({\n type: source_type,\n transformations: source_transformation[source_type] || {}\n }));\n }\n if (_.isArray(sources) && sources.length > 0) {\n html += sources.map((source_data) => {\n let source_type = source_data.type;\n let codecs = source_data.codecs;\n let transformation = source_data.transformations || {};\n src = cloudinary.utils.url(source + \".\" + source_type, _.extend({ resource_type: 'video' }, _.cloneDeep(options), _.cloneDeep(transformation)));\n return cloudinary.utils.create_source_tag(src, source_type, codecs);\n }).join('');\n }\n return `${html}${fallback} `;\n};\n\n\n/**\n * Generate a source tag.\n * @param {string} public_id\n * @param {object} options\n * @param {srcset} options.srcset arguments required to generate the srcset attribute.\n * @param {object} options.attributes HTML tag attributes\n * @return {string}\n */\nexports.source = function source(public_id, options = {}) {\n let srcsetParam = cloudinary.utils.extend({}, options.srcset, cloudinary.config().srcset);\n let attributes = options.attributes || {};\n\n cloudinary.utils.extend(attributes, generateImageResponsiveAttributes(public_id, attributes, srcsetParam, options));\n if (!attributes.srcset) {\n attributes.srcset = cloudinary.url(public_id, options);\n }\n if (!attributes.media && options.media) {\n attributes.media = generateMediaAttr(options.media);\n }\n return ``;\n};\n\n/**\n * Generate a picture HTML tag.\"\n + sources.map((source) => {\n let sourceOptions = chainTransformations(options, source.transformation);\n sourceOptions.media = source;\n return cloudinary.source(public_id, sourceOptions);\n }).join('')\n + cloudinary.image(public_id, options)\n + \" \";\n};\n\nexports.cloudinary_js_config = cloudinary.utils.cloudinary_js_config;\nexports.CF_SHARED_CDN = cloudinary.utils.CF_SHARED_CDN;\nexports.AKAMAI_SHARED_CDN = cloudinary.utils.AKAMAI_SHARED_CDN;\nexports.SHARED_CDN = cloudinary.utils.SHARED_CDN;\nexports.BLANK = \"data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\";\nexports.v2 = require('./v2');\n","/**\n * Assign a value to a nested object\n * @function putNestedValue\n * @param params the parent object - this argument will be modified!\n * @param key key in the form nested[innerkey]\n * @param value the value to assign\n * @return the modified params object\n */\nconst url = require('url');\nconst extend = require(\"lodash/extend\");\nconst isObject = require(\"lodash/isObject\");\nconst isString = require(\"lodash/isString\");\nconst isUndefined = require(\"lodash/isUndefined\");\nconst entries = require('./utils/entries');\n\nlet cloudinary_config = void 0;\n\n/**\n * Sets a value in an object using a nested key\n * @param {object} params The object to assign the value in.\n * @param {string} key The key of the value. A period is used to denote inner keys.\n * @param {*} value The value to set.\n * @returns {object} The params argument.\n * @example\n * let o = {foo: {bar: 1}};\n * putNestedValue(o, 'foo.bar', 2); // {foo: {bar: 2}}\n * putNestedValue(o, 'foo.inner.key', 'this creates an inner object');\n * // {{foo: {bar: 2}, inner: {key: 'this creates an inner object'}}}\n */\nfunction putNestedValue(params, key, value) {\n let chain = key.split(/[\\[\\]]+/).filter(i => i.length);\n let outer = params;\n let lastKey = chain.pop();\n for (let j = 0; j < chain.length; j++) {\n let innerKey = chain[j];\n let inner = outer[innerKey];\n if (inner == null) {\n inner = {};\n outer[innerKey] = inner;\n }\n outer = inner;\n }\n outer[lastKey] = value;\n return params;\n}\n\nfunction parseCloudinaryConfigFromEnvURL(ENV_STR) {\n let conf = {};\n\n let uri = url.parse(ENV_STR, true);\n\n if (uri.protocol === 'cloudinary:') {\n conf = Object.assign({}, conf, {\n cloud_name: uri.host,\n api_key: uri.auth && uri.auth.split(\":\")[0],\n api_secret: uri.auth && uri.auth.split(\":\")[1],\n private_cdn: uri.pathname != null,\n secure_distribution: uri.pathname && uri.pathname.substring(1)\n });\n } else if (uri.protocol === 'account:') {\n conf = Object.assign({}, conf, {\n account_id: uri.host,\n provisioning_api_key: uri.auth && uri.auth.split(\":\")[0],\n provisioning_api_secret: uri.auth && uri.auth.split(\":\")[1]\n });\n }\n\n return conf;\n}\n\nfunction extendCloudinaryConfigFromQuery(ENV_URL, confToExtend = {}) {\n let uri = url.parse(ENV_URL, true);\n if (uri.query != null) {\n entries(uri.query).forEach(([key, value]) => putNestedValue(confToExtend, key, value));\n }\n}\n\nfunction extendCloudinaryConfig(parsedConfig, confToExtend = {}) {\n entries(parsedConfig).forEach(([key, value]) => {\n if (value !== undefined) {\n confToExtend[key] = value;\n }\n });\n\n return confToExtend;\n}\n\nmodule.exports = function (new_config, new_value) {\n if ((cloudinary_config == null) || new_config === true) {\n if (cloudinary_config == null) {\n cloudinary_config = {};\n } else {\n Object.keys(cloudinary_config).forEach(key => delete cloudinary_config[key]);\n }\n\n let CLOUDINARY_ENV_URL = process.env.CLOUDINARY_URL;\n let CLOUDINARY_ENV_ACCOUNT_URL = process.env.CLOUDINARY_ACCOUNT_URL;\n \n if (CLOUDINARY_ENV_URL && !CLOUDINARY_ENV_URL.toLowerCase().startsWith('cloudinary://')) {\n throw new Error(\"Invalid CLOUDINARY_URL protocol. URL should begin with 'cloudinary://'\");\n }\n if (CLOUDINARY_ENV_ACCOUNT_URL && !CLOUDINARY_ENV_ACCOUNT_URL.toLowerCase().startsWith('account://')) {\n throw new Error(\"Invalid CLOUDINARY_ACCOUNT_URL protocol. URL should begin with 'account://'\");\n }\n\n [CLOUDINARY_ENV_URL, CLOUDINARY_ENV_ACCOUNT_URL].forEach((ENV_URL) => {\n if (ENV_URL) {\n let parsedConfig = parseCloudinaryConfigFromEnvURL(ENV_URL);\n extendCloudinaryConfig(parsedConfig, cloudinary_config);\n // Provide Query support in ENV url cloudinary://key:secret@test123?foo[bar]=value\n // expect(cloudinary_config.foo.bar).to.eql('value')\n extendCloudinaryConfigFromQuery(ENV_URL, cloudinary_config);\n }\n });\n }\n if (!isUndefined(new_value)) {\n cloudinary_config[new_config] = new_value;\n } else if (isString(new_config)) {\n return cloudinary_config[new_config];\n } else if (isObject(new_config)) {\n extend(cloudinary_config, new_config);\n }\n return cloudinary_config;\n};\n","let PRELOADED_CLOUDINARY_PATH, config, utils;\n\nutils = require(\"./utils\");\n\nconfig = require(\"./config\");\n\nPRELOADED_CLOUDINARY_PATH = /^([^\\/]+)\\/([^\\/]+)\\/v(\\d+)\\/([^#]+)#([^\\/]+)$/;\n\nclass PreloadedFile {\n constructor(file_info) {\n let matches, public_id_and_format;\n matches = file_info.match(PRELOADED_CLOUDINARY_PATH);\n if (!matches) {\n throw \"Invalid preloaded file info\";\n }\n this.resource_type = matches[1];\n this.type = matches[2];\n this.version = matches[3];\n this.filename = matches[4];\n this.signature = matches[5];\n public_id_and_format = PreloadedFile.split_format(this.filename);\n this.public_id = public_id_and_format[0];\n this.format = public_id_and_format[1];\n }\n\n is_valid() {\n let expected_signature;\n expected_signature = utils.api_sign_request({\n public_id: this.public_id,\n version: this.version\n }, config().api_secret);\n return this.signature === expected_signature;\n }\n\n static split_format(identifier) {\n let format, last_dot, public_id;\n last_dot = identifier.lastIndexOf(\".\");\n if (last_dot === -1) {\n return [identifier, null];\n }\n public_id = identifier.substr(0, last_dot);\n format = identifier.substr(last_dot + 1);\n return [public_id, format];\n }\n\n identifier() {\n return `v${this.version}/${this.filename}`;\n }\n\n toString() {\n return `${this.resource_type}/${this.type}/v${this.version}/${this.filename}#${this.signature}`;\n }\n\n toJSON() {\n let result = {};\n Object.getOwnPropertyNames(this).forEach((key) => {\n let val = this[key];\n if (typeof val !== 'function') {\n result[key] = val;\n }\n });\n return result;\n }\n}\n\nmodule.exports = PreloadedFile;\n","const utils = require(\"../utils\");\nconst call_account_api = require('../api_client/call_account_api');\n\nconst { pickOnlyExistingValues } = utils;\n\n/**\n * @desc Lists sub-accounts.\n * @param [enabled] {boolean} - Whether to only return enabled sub-accounts (true) or disabled accounts (false).\n * Default: all accounts are returned (both enabled and disabled).\n * @param [ids] {number[]} - A list of up to 100 sub-account IDs. When provided, other parameters are ignored.\n * @param [prefix] {string} - Returns accounts where the name begins with the specified case-insensitive string.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction sub_accounts(enabled, ids = [], prefix, options = {}, callback) {\n let params = {\n enabled,\n ids,\n prefix\n };\n\n let uri = ['sub_accounts'];\n return call_account_api('GET', uri, params, callback, options);\n}\n\n\n/**\n * @desc Retrieves the details of the specified sub-account.\n * @param sub_account_id {string} - The ID of the sub-account.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction sub_account(sub_account_id, options = {}, callback) {\n let uri = ['sub_accounts', sub_account_id];\n return call_account_api('GET', uri, {}, callback, options);\n}\n\n\n/**\n * @desc Creates a new sub-account. Any users that have access to all sub-accounts will also automatically have access\n * to the new sub-account.\n * @param name {string} The display name as shown in the management console.\n * @param cloud_name {string} A case-insensitive cloud name comprised of alphanumeric and underscore characters.\n * Generates an error if the specified cloud name is not unique across all Cloudinary\n * accounts. Note: Once created, the name can only be changed for accounts with fewer than\n * 1000 assets.\n * @param custom_attributes {object} Any custom attributes you want to associate with the sub-account, as a map/hash of\n * key/value pairs.\n * @param enabled {boolean} Whether the sub-account is enabled. Default: true\n * @param base_account {string} The ID of another sub-account, from which to copy all of the following settings:\n * Size limits, Timed limits, and Flags.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param callback\n */\nfunction create_sub_account(name, cloud_name, custom_attributes, enabled, base_account, options = {}, callback) {\n let params = {\n cloud_name: cloud_name,\n name,\n custom_attributes: custom_attributes,\n enabled,\n base_sub_account_id: base_account\n };\n\n options.content_type = \"json\";\n let uri = ['sub_accounts'];\n return call_account_api('POST', uri, params, callback, options);\n}\n\n/**\n * @desc Deletes the specified sub-account. Supported only for accounts with fewer than 1000 assets.\n * @param sub_account_id {string} - The ID of the sub-account to delete.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction delete_sub_account(sub_account_id, options = {}, callback) {\n let uri = ['sub_accounts', sub_account_id];\n return call_account_api('DELETE', uri, {}, callback, options);\n}\n\n/**\n * @desc Updates the specified details of the sub-account.\n * @param sub_account_id {string} - The ID of the sub-account.\n * @param [name] {string} - The display name as shown in the management console.\n * @param [cloud_name] {string} - A new cloud name for the account.\n * Notes:\n * - Can only be changed for accounts with fewer than 1000 assets.\n * - generates an error if the cloud name is not unique across all Cloudinary accounts.\n * @param [custom_attributes] {object} - Any custom attributes you want to associate with the sub-account, as a map/hash\n * of key/value pairs.\n * @param [enabled] {boolean} - Whether the sub-account is enabled.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction update_sub_account(sub_account_id, name, cloud_name, custom_attributes, enabled, options = {}, callback) {\n let params = {\n cloud_name: cloud_name,\n name,\n custom_attributes: custom_attributes,\n enabled\n };\n\n options.content_type = \"json\";\n let uri = ['sub_accounts', sub_account_id];\n return call_account_api('PUT', uri, params, callback, options);\n}\n\n/**\n * @desc Returns the user with the specified ID.\n * @param user_id {string} - The ID of the user.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction user(user_id, options = {}, callback) {\n let uri = ['users', user_id];\n return call_account_api('GET', uri, {}, callback, options);\n}\n\n/**\n * @desc Lists users in the account.\n * @param [pending] {boolean} - Limit results to pending users (true), users that are not pending (false), or all users (undefined, the default)\n * @param [user_ids] {string[]} - A list of up to 100 user IDs. When provided, other parameters are ignored.\n * @param [prefix] {string} - Returns users where the name or email address begins with the specified case-insensitive\n * string.\n * @param [sub_account_id[ {string} - Only returns users who have access to the specified account.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction users(pending, user_ids, prefix, sub_account_id, options = {}, callback) {\n let uri = ['users'];\n let params = {\n ids: user_ids,\n pending,\n prefix,\n sub_account_id\n };\n return call_account_api('GET', uri, pickOnlyExistingValues(params, \"ids\", \"pending\", \"prefix\", \"sub_account_id\"), callback, options);\n}\n\n/**\n * @desc Creates a new user in the account.\n * @param name {string} - The name of the user.\n * @param email {string} - A unique email address, which serves as the login name and notification address.\n * @param role {string} - The role to assign. Possible values: master_admin, admin, billing, technical_admin, reports,\n * media_library_admin, media_library_user\n * @param [sub_account_ids] {string[]} - The list of sub-account IDs that this user can access.\n * Note: This parameter is ignored if the role is specified as master_admin.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction create_user(name, email, role, sub_account_ids, options = {}, callback) {\n let uri = ['users'];\n let params = {\n name,\n email,\n role,\n sub_account_ids: sub_account_ids\n };\n options.content_type = 'json';\n return call_account_api('POST', uri, params, callback, options);\n}\n\n/**\n * @desc Updates the details of the specified user.\n * @param user_id {string} - The ID of the user to update.\n * @param [name] {string} - The name of the user.\n * @param [email] {string} - A unique email address, which serves as the login name and notification address.\n * @param [role] {string} - The role to assign. Possible values: master_admin, admin, billing, technical_admin, reports,\n * media_library_admin, media_library_user\n * @param [sub_account_ids] {string[]} - The list of sub-account IDs that this user can access.\n * Note: This parameter is ignored if the role is specified as master_admin.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction update_user(user_id, name, email, role, sub_account_ids, options = {}, callback) {\n let uri = ['users', user_id];\n let params = {\n name,\n email,\n role,\n sub_account_ids: sub_account_ids\n };\n options.content_type = 'json';\n return call_account_api('PUT', uri, params, callback, options);\n}\n\n/**\n * @desc Deletes an existing user.\n * @param user_id {string} - The ID of the user to delete.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction delete_user(user_id, options = {}, callback) {\n let uri = ['users', user_id];\n return call_account_api('DELETE', uri, {}, callback, options);\n}\n\n/**\n * @desc Creates a new user group.\n * @param name {string} - The name for the user group.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction create_user_group(name, options = {}, callback) {\n let uri = ['user_groups'];\n options.content_type = 'json';\n let params = {\n name\n };\n return call_account_api('POST', uri, params, callback, options);\n}\n\n/**\n * @desc Updates the specified user group.\n * @param group_id {string} The ID of the user group to update.\n * @param name {string} - The name for the user group.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction update_user_group(group_id, name, options = {}, callback) {\n let uri = ['user_groups', group_id];\n let params = {\n name\n };\n return call_account_api('PUT', uri, params, callback, options);\n}\n\n/**\n * @desc Deletes the user group with the specified ID.\n * @param group_id {string} The ID of the user group to delete.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction delete_user_group(group_id, options = {}, callback) {\n let uri = ['user_groups', group_id];\n return call_account_api('DELETE', uri, {}, callback, options);\n}\n\n/**\n * @desc Adds a user to a group with the specified ID.\n * @param group_id {string} - The ID of the user group.\n * @param user_id {string} - The ID of the user.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction add_user_to_group(group_id, user_id, options = {}, callback) {\n let uri = ['user_groups', group_id, 'users', user_id];\n return call_account_api('POST', uri, {}, callback, options);\n}\n\n/**\n * @desc Removes a user from a group with the specified ID.\n * @param group_id {string} - The ID of the user group.\n * @param user_id {string} - The ID of the user.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction remove_user_from_group(group_id, user_id, options = {}, callback) {\n let uri = ['user_groups', group_id, 'users', user_id];\n return call_account_api('DELETE', uri, {}, callback, options);\n}\n\n/**\n * @desc Retrieves the details of the specified user group.\n * @param group_id {string} - The ID of the user group to retrieve.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction user_group(group_id, options = {}, callback) {\n let uri = ['user_groups', group_id];\n return call_account_api('GET', uri, {}, callback, options);\n}\n\n/**\n * @desc Lists user groups in the account.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction user_groups(options = {}, callback) {\n let uri = ['user_groups'];\n return call_account_api('GET', uri, {}, callback, options);\n}\n\n/**\n * @desc Lists users in the specified user group.\n * @param group_id {string} - The ID of the user group.\n * @param [options] {object} - See {@link https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters|Configuration parameters} in the SDK documentation.\n * @param [callback] {function}\n */\nfunction user_group_users(group_id, options = {}, callback) {\n let uri = ['user_groups', group_id, 'users'];\n return call_account_api('GET', uri, {}, callback, options);\n}\n\n\nmodule.exports = {\n sub_accounts,\n create_sub_account,\n delete_sub_account,\n sub_account,\n update_sub_account,\n user,\n users,\n user_group,\n user_groups,\n user_group_users,\n remove_user_from_group,\n delete_user,\n update_user_group,\n update_user,\n create_user,\n create_user_group,\n add_user_to_group,\n delete_user_group\n};\n","\nconst Transform = require(\"stream\").Transform;\n\nclass UploadStream extends Transform {\n constructor(options) {\n super();\n this.boundary = options.boundary;\n }\n\n _transform(data, encoding, next) {\n let buffer = ((Buffer.isBuffer(data)) ? data : Buffer.from(data, encoding));\n this.push(buffer);\n next();\n }\n\n _flush(next) {\n this.push(Buffer.from(\"\\r\\n\", 'ascii'));\n this.push(Buffer.from(\"--\" + this.boundary + \"--\", 'ascii'));\n return next();\n }\n}\n\nmodule.exports = UploadStream;\n","const fs = require('fs');\nconst { extname, basename } = require('path');\nconst Q = require('q');\nconst Writable = require(\"stream\").Writable;\nconst urlLib = require('url');\n\n// eslint-disable-next-line import/order\nconst { upload_prefix } = require(\"./config\")();\n\nconst isSecure = !(upload_prefix && upload_prefix.slice(0, 5) === 'http:');\nconst https = isSecure ? require('https') : require('http');\n\nconst Cache = require('./cache');\nconst utils = require(\"./utils\");\nconst UploadStream = require('./upload_stream');\nconst config = require(\"./config\");\nconst ensureOption = require('./utils/ensureOption').defaults(config());\n\nconst {\n build_upload_params,\n extend,\n includes,\n isObject,\n isRemoteUrl,\n merge,\n pickOnlyExistingValues\n} = utils;\n\nexports.unsigned_upload_stream = function unsigned_upload_stream(upload_preset, callback, options = {}) {\n return exports.upload_stream(callback, merge(options, {\n unsigned: true,\n upload_preset: upload_preset\n }));\n};\n\nexports.upload_stream = function upload_stream(callback, options = {}) {\n return exports.upload(null, callback, extend({\n stream: true\n }, options));\n};\n\nexports.unsigned_upload = function unsigned_upload(file, upload_preset, callback, options = {}) {\n return exports.upload(file, callback, merge(options, {\n unsigned: true,\n upload_preset: upload_preset\n }));\n};\n\nexports.upload = function upload(file, callback, options = {}) {\n return call_api(\"upload\", callback, options, function () {\n let params = build_upload_params(options);\n return isRemoteUrl(file) ? [params, { file: file }] : [params, {}, file];\n });\n};\n\nexports.upload_large = function upload_large(path, callback, options = {}) {\n if ((path != null) && isRemoteUrl(path)) {\n // upload a remote file\n return exports.upload(path, callback, options);\n }\n if (path != null && !options.filename) {\n options.filename = path.split(/(\\\\|\\/)/g).pop().replace(/\\.[^/.]+$/, \"\");\n }\n return exports.upload_chunked(path, callback, extend({\n resource_type: 'raw'\n }, options));\n};\n\nexports.upload_chunked = function upload_chunked(path, callback, options) {\n let file_reader = fs.createReadStream(path);\n let out_stream = exports.upload_chunked_stream(callback, options);\n return file_reader.pipe(out_stream);\n};\n\nclass Chunkable extends Writable {\n constructor(options) {\n super(options);\n this.chunk_size = options.chunk_size != null ? options.chunk_size : 20000000;\n this.buffer = Buffer.alloc(0);\n this.active = true;\n this.on('finish', () => {\n if (this.active) {\n this.emit('ready', this.buffer, true, function () {\n });\n }\n });\n }\n\n _write(data, encoding, done) {\n if (!this.active) {\n done();\n }\n if (this.buffer.length + data.length <= this.chunk_size) {\n this.buffer = Buffer.concat([this.buffer, data], this.buffer.length + data.length);\n done();\n } else {\n const grab = this.chunk_size - this.buffer.length;\n this.buffer = Buffer.concat([this.buffer, data.slice(0, grab)], this.buffer.length + grab);\n this.emit('ready', this.buffer, false, (active) => {\n this.active = active;\n if (this.active) {\n this.buffer = data.slice(grab);\n done();\n }\n });\n }\n }\n}\n\nexports.upload_large_stream = function upload_large_stream(_unused_, callback, options = {}) {\n return exports.upload_chunked_stream(callback, extend({\n resource_type: 'raw'\n }, options));\n};\n\nexports.upload_chunked_stream = function upload_chunked_stream(callback, options = {}) {\n options = extend({}, options, {\n stream: true\n });\n options.x_unique_upload_id = utils.random_public_id();\n let params = build_upload_params(options);\n let chunk_size = options.chunk_size != null ? options.chunk_size : options.part_size;\n let chunker = new Chunkable({\n chunk_size: chunk_size\n });\n let sent = 0;\n chunker.on('ready', function (buffer, is_last, done) {\n let chunk_start = sent;\n sent += buffer.length;\n options.content_range = `bytes ${chunk_start}-${sent - 1}/${(is_last ? sent : -1)}`;\n params.timestamp = utils.timestamp();\n let finished_part = function (result) {\n const errorOrLast = (result.error != null) || is_last;\n if (errorOrLast && typeof callback === \"function\") {\n callback(result);\n }\n return done(!errorOrLast);\n };\n let stream = call_api(\"upload\", finished_part, options, function () {\n return [params, {}, buffer];\n });\n return stream.write(buffer, 'buffer', function () {\n return stream.end();\n });\n });\n return chunker;\n};\n\nexports.explicit = function explicit(public_id, callback, options = {}) {\n return call_api(\"explicit\", callback, options, function () {\n return utils.build_explicit_api_params(public_id, options);\n });\n};\n\n// Creates a new archive in the server and returns information in JSON format\nexports.create_archive = function create_archive(callback, options = {}, target_format = null) {\n return call_api(\"generate_archive\", callback, options, function () {\n let opt = utils.archive_params(options);\n if (target_format) {\n opt.target_format = target_format;\n }\n return [opt];\n });\n};\n\n// Creates a new zip archive in the server and returns information in JSON format\nexports.create_zip = function create_zip(callback, options = {}) {\n return exports.create_archive(callback, options, \"zip\");\n};\n\n\nexports.create_slideshow = function create_slideshow(options, callback) {\n options.resource_type = ensureOption(options, \"resource_type\", \"video\");\n return call_api(\"create_slideshow\", callback, options, function () {\n // Generate a transformation from the manifest_transformation key, which should be a valid transformation\n const manifest_transformation = utils.generate_transformation_string(extend({}, options.manifest_transformation));\n\n // Try to use {options.transformation} to generate a transformation (Example: options.transformation.width, options.transformation.height)\n const transformation = utils.generate_transformation_string(extend({}, ensureOption(options, 'transformation', {})));\n\n return [\n {\n timestamp: utils.timestamp(),\n manifest_transformation: manifest_transformation,\n upload_preset: options.upload_preset,\n overwrite: options.overwrite,\n public_id: options.public_id,\n notification_url: options.notification_url,\n manifest_json: options.manifest_json,\n tags: options.tags,\n transformation: transformation\n }\n ];\n });\n};\n\n\nexports.destroy = function destroy(public_id, callback, options = {}) {\n return call_api(\"destroy\", callback, options, function () {\n return [\n {\n timestamp: utils.timestamp(),\n type: options.type,\n invalidate: options.invalidate,\n public_id: public_id\n }\n ];\n });\n};\n\nexports.rename = function rename(from_public_id, to_public_id, callback, options = {}) {\n return call_api(\"rename\", callback, options, function () {\n return [\n {\n timestamp: utils.timestamp(),\n type: options.type,\n from_public_id: from_public_id,\n to_public_id: to_public_id,\n overwrite: options.overwrite,\n invalidate: options.invalidate,\n to_type: options.to_type\n }\n ];\n });\n};\n\nconst TEXT_PARAMS = [\"public_id\", \"font_family\", \"font_size\", \"font_color\", \"text_align\", \"font_weight\", \"font_style\", \"background\", \"opacity\", \"text_decoration\", \"font_hinting\", \"font_antialiasing\"];\n\nexports.text = function text(content, callback, options = {}) {\n return call_api(\"text\", callback, options, function () {\n let textParams = pickOnlyExistingValues(options, ...TEXT_PARAMS);\n let params = {\n timestamp: utils.timestamp(),\n text: content,\n ...textParams\n };\n\n return [params];\n });\n};\n\n/**\n * Generate a sprite by merging multiple images into a single large image for reducing network overhead and bypassing\n * download limitations.\n *\n * The process produces 2 files as follows:\n * - A single image file containing all the images with the specified tag (PNG by default).\n * - A CSS file that includes the style class names and the location of the individual images in the sprite.\n *\n * @param {String|Object} tag A string specifying a tag that indicates which images to include or an object\n * which includes options and image URLs.\n * @param {Function} callback Callback function\n * @param {Object} options Configuration options. If options are passed as the first parameter, this parameter\n * should be empty\n *\n * @return {Object}\n */\nexports.generate_sprite = function generate_sprite(tag, callback, options = {}) {\n return call_api(\"sprite\", callback, options, function () {\n return [utils.build_multi_and_sprite_params(tag, options)];\n });\n};\n\n\n/**\n * Returns a signed url to download a sprite\n *\n * @param {String|Object} tag A string specifying a tag that indicates which images to include or an object\n * which includes options and image URLs.\n * @param {Object} options Configuration options. If options are passed as the first parameter, this parameter\n * should be empty\n *\n * @returns {string}\n */\nexports.download_generated_sprite = function download_generated_sprite(tag, options = {}) {\n return utils.api_download_url(\"sprite\", utils.build_multi_and_sprite_params(tag, options), options);\n}\n\n/**\n * Returns a signed url to download a single animated image (GIF, PNG or WebP), video (MP4 or WebM) or a single PDF from\n * multiple image assets.\n *\n * @param {String|Object} tag A string specifying a tag that indicates which images to include or an object\n * which includes options and image URLs.\n * @param {Object} options Configuration options. If options are passed as the first parameter, this parameter\n * should be empty\n *\n * @returns {string}\n */\nexports.download_multi = function download_multi(tag, options = {}) {\n return utils.api_download_url(\"multi\", utils.build_multi_and_sprite_params(tag, options), options);\n}\n\n/**\n * Creates either a single animated image (GIF, PNG or WebP), video (MP4 or WebM) or a single PDF from multiple image\n * assets.\n *\n * Each asset is included as a single frame of the resulting animated image/video, or a page of the PDF (sorted\n * alphabetically by their Public ID).\n *\n * @param {String|Object} tag A string specifying a tag that indicates which images to include or an object\n * which includes options and image URLs.\n * @param {Function} callback Callback function\n * @param {Object} options Configuration options. If options are passed as the first parameter, this parameter\n * should be empty\n *\n * @return {Object}\n */\nexports.multi = function multi(tag, callback, options = {}) {\n return call_api(\"multi\", callback, options, function () {\n return [utils.build_multi_and_sprite_params(tag, options)];\n });\n};\n\nexports.explode = function explode(public_id, callback, options = {}) {\n return call_api(\"explode\", callback, options, function () {\n const transformation = utils.generate_transformation_string(extend({}, options));\n return [\n {\n timestamp: utils.timestamp(),\n public_id: public_id,\n transformation: transformation,\n format: options.format,\n type: options.type,\n notification_url: options.notification_url\n }\n ];\n });\n};\n\n/**\n *\n * @param {String} tag The tag or tags to assign. Can specify multiple\n * tags in a single string, separated by commas - \"t1,t2,t3,t4,t5,t6,t7,t8,t9,t10,t11\".\n *\n * @param {Array} public_ids A list of public IDs (up to 1000) of assets uploaded to Cloudinary.\n *\n * @param {Function} callback Callback function\n *\n * @param {Object} options Configuration options may include 'exclusive' (boolean) which causes\n * clearing this tag from all other resources\n * @return {Object}\n */\nexports.add_tag = function add_tag(tag, public_ids = [], callback, options = {}) {\n const exclusive = utils.option_consume(\"exclusive\", options);\n const command = exclusive ? \"set_exclusive\" : \"add\";\n return call_tags_api(tag, command, public_ids, callback, options);\n};\n\n\n/**\n * @param {String} tag The tag or tags to remove. Can specify multiple\n * tags in a single string, separated by commas - \"t1,t2,t3,t4,t5,t6,t7,t8,t9,t10,t11\".\n *\n * @param {Array} public_ids A list of public IDs (up to 1000) of assets uploaded to Cloudinary.\n *\n * @param {Function} callback Callback function\n *\n * @param {Object} options Configuration options may include 'exclusive' (boolean) which causes\n * clearing this tag from all other resources\n * @return {Object}\n */\nexports.remove_tag = function remove_tag(tag, public_ids = [], callback, options = {}) {\n return call_tags_api(tag, \"remove\", public_ids, callback, options);\n};\n\nexports.remove_all_tags = function remove_all_tags(public_ids = [], callback, options = {}) {\n return call_tags_api(null, \"remove_all\", public_ids, callback, options);\n};\n\nexports.replace_tag = function replace_tag(tag, public_ids = [], callback, options = {}) {\n return call_tags_api(tag, \"replace\", public_ids, callback, options);\n};\n\nfunction call_tags_api(tag, command, public_ids = [], callback, options = {}) {\n return call_api(\"tags\", callback, options, function () {\n let params = {\n timestamp: utils.timestamp(),\n public_ids: utils.build_array(public_ids),\n command: command,\n type: options.type\n };\n if (tag != null) {\n params.tag = tag;\n }\n return [params];\n });\n}\n\nexports.add_context = function add_context(context, public_ids = [], callback, options = {}) {\n return call_context_api(context, 'add', public_ids, callback, options);\n};\n\nexports.remove_all_context = function remove_all_context(public_ids = [], callback, options = {}) {\n return call_context_api(null, 'remove_all', public_ids, callback, options);\n};\n\nfunction call_context_api(context, command, public_ids = [], callback, options = {}) {\n return call_api('context', callback, options, function () {\n let params = {\n timestamp: utils.timestamp(),\n public_ids: utils.build_array(public_ids),\n command: command,\n type: options.type\n };\n if (context != null) {\n params.context = utils.encode_context(context);\n }\n return [params];\n });\n}\n\n/**\n * Cache (part of) the upload results.\n * @param result\n * @param {object} options\n * @param {string} options.type\n * @param {string} options.resource_type\n */\nfunction cacheResults(result, { type, resource_type }) {\n if (result.responsive_breakpoints) {\n result.responsive_breakpoints.forEach(\n ({ transformation,\n url,\n breakpoints }) => Cache.set(\n result.public_id,\n { type, resource_type, raw_transformation: transformation, format: extname(breakpoints[0].url).slice(1) },\n breakpoints.map(i => i.width)\n )\n );\n }\n}\n\n\nfunction parseResult(buffer, res) {\n let result = '';\n try {\n result = JSON.parse(buffer);\n if (result.error && !result.error.name) {\n result.error.name = \"Error\";\n }\n } catch (jsonError) {\n result = {\n error: {\n message: `Server return invalid JSON response. Status Code ${res.statusCode}. ${jsonError}`,\n name: \"Error\"\n }\n };\n }\n return result;\n}\n\nfunction call_api(action, callback, options, get_params) {\n if (typeof callback !== \"function\") {\n callback = function () {};\n }\n\n const USE_PROMISES = !options.disable_promises;\n\n let deferred = Q.defer();\n if (options == null) {\n options = {};\n }\n let [params, unsigned_params, file] = get_params.call();\n params = utils.process_request_params(params, options);\n params = extend(params, unsigned_params);\n let api_url = utils.api_url(action, options);\n let boundary = utils.random_public_id();\n let errorRaised = false;\n let handle_response = function (res) {\n // let buffer;\n if (errorRaised) {\n\n // Already reported\n } else if (res.error) {\n errorRaised = true;\n\n if (USE_PROMISES) {\n deferred.reject(res);\n }\n callback(res);\n } else if (includes([200, 400, 401, 404, 420, 500], res.statusCode)) {\n let buffer = \"\";\n res.on(\"data\", (d) => {\n buffer += d;\n return buffer;\n });\n res.on(\"end\", () => {\n let result;\n if (errorRaised) {\n return;\n }\n result = parseResult(buffer, res);\n if (result.error) {\n result.error.http_code = res.statusCode;\n if (USE_PROMISES) {\n deferred.reject(result.error);\n }\n } else {\n cacheResults(result, options);\n if (USE_PROMISES) {\n deferred.resolve(result);\n }\n }\n callback(result);\n });\n res.on(\"error\", (error) => {\n errorRaised = true;\n if (USE_PROMISES) {\n deferred.reject(error);\n }\n callback({ error });\n });\n } else {\n let error = {\n message: `Server returned unexpected status code - ${res.statusCode}`,\n http_code: res.statusCode,\n name: \"UnexpectedResponse\"\n };\n if (USE_PROMISES) {\n deferred.reject(error);\n }\n callback({ error });\n }\n };\n let post_data = utils.hashToParameters(params)\n .filter(([key, value]) => value != null)\n .map(\n ([key, value]) => Buffer.from(encodeFieldPart(boundary, key, value), 'utf8')\n );\n let result = post(api_url, post_data, boundary, file, handle_response, options);\n if (isObject(result)) {\n return result;\n }\n\n if (USE_PROMISES) {\n return deferred.promise;\n }\n}\n\nfunction post(url, post_data, boundary, file, callback, options) {\n let file_header;\n let finish_buffer = Buffer.from(\"--\" + boundary + \"--\", 'ascii');\n let oauth_token = options.oauth_token || config().oauth_token;\n if ((file != null) || options.stream) {\n // eslint-disable-next-line no-nested-ternary\n let filename = options.stream ? options.filename ? options.filename : \"file\" : basename(file);\n file_header = Buffer.from(encodeFilePart(boundary, 'application/octet-stream', 'file', filename), 'binary');\n }\n let post_options = urlLib.parse(url);\n let headers = {\n 'Content-Type': `multipart/form-data; boundary=${boundary}`,\n 'User-Agent': utils.getUserAgent()\n };\n if (options.content_range != null) {\n headers['Content-Range'] = options.content_range;\n }\n if (options.x_unique_upload_id != null) {\n headers['X-Unique-Upload-Id'] = options.x_unique_upload_id;\n }\n if (oauth_token != null) {\n headers.Authorization = `Bearer ${oauth_token}`;\n }\n\n post_options = extend(post_options, {\n method: 'POST',\n headers: headers\n });\n if (options.agent != null) {\n post_options.agent = options.agent;\n }\n let post_request = https.request(post_options, callback);\n let upload_stream = new UploadStream({ boundary });\n upload_stream.pipe(post_request);\n let timeout = false;\n post_request.on(\"error\", function (error) {\n if (timeout) {\n error = {\n message: \"Request Timeout\",\n http_code: 499,\n name: \"TimeoutError\"\n };\n }\n return callback({ error });\n });\n post_request.setTimeout(options.timeout != null ? options.timeout : 60000, function () {\n timeout = true;\n return post_request.abort();\n });\n post_data.forEach(postDatum => post_request.write(postDatum));\n if (options.stream) {\n post_request.write(file_header);\n return upload_stream;\n }\n if (file != null) {\n post_request.write(file_header);\n fs.createReadStream(file).on('error', function (error) {\n callback({\n error: error\n });\n return post_request.abort();\n }).pipe(upload_stream);\n } else {\n post_request.write(finish_buffer);\n post_request.end();\n }\n return true;\n}\n\nfunction encodeFieldPart(boundary, name, value) {\n return [\n `--${boundary}`,\n `Content-Disposition: form-data; name=\"${name}\"`,\n '',\n value,\n ''\n ].join(\"\\r\\n\");\n}\n\nfunction encodeFilePart(boundary, type, name, filename) {\n return [\n `--${boundary}`,\n `Content-Disposition: form-data; name=\"${name}\"; filename=\"${filename}\"`,\n `Content-Type: ${type}`,\n '',\n ''\n ].join(\"\\r\\n\");\n}\n\nexports.direct_upload = function direct_upload(callback_url, options = {}) {\n let params = build_upload_params(extend({\n callback: callback_url\n }, options));\n params = utils.process_request_params(params, options);\n let api_url = utils.api_url(\"upload\", options);\n return {\n hidden_fields: params,\n form_attrs: {\n action: api_url,\n method: \"POST\",\n enctype: \"multipart/form-data\"\n }\n };\n};\n\nexports.upload_tag_params = function upload_tag_params(options = {}) {\n let params = build_upload_params(options);\n params = utils.process_request_params(params, options);\n return JSON.stringify(params);\n};\n\nexports.upload_url = function upload_url(options = {}) {\n if (options.resource_type == null) {\n options.resource_type = \"auto\";\n }\n return utils.api_url(\"upload\", options);\n};\n\nexports.image_upload_tag = function image_upload_tag(field, options = {}) {\n let html_options = options.html || {};\n let tag_options = extend({\n type: \"file\",\n name: \"file\",\n \"data-url\": exports.upload_url(options),\n \"data-form-data\": exports.upload_tag_params(options),\n \"data-cloudinary-field\": field,\n \"data-max-chunk-size\": options.chunk_size,\n \"class\": [html_options.class, \"cloudinary-fileupload\"].join(\" \")\n }, html_options);\n return `>} array - An array of arrays.\n * If the first element is not an array the argument is wrapped in an array.\n * @returns {string} A string representation of the arrays.\n */\nfunction encodeDoubleArray(array) {\n array = toArray(array);\n if (!isArray(array[0])) {\n array = [array];\n }\n return array.map(e => toArray(e).join(\",\")).join(\"|\");\n}\n\nmodule.exports = encodeDoubleArray;\n",null,"// Based on CGI::unescape. In addition does not escape / :\n// smart_escape = (string)->\n// encodeURIComponent(string).replace(/%3A/g, \":\").replace(/%2F/g, \"/\")\nfunction smart_escape(string, unsafe = /([^a-zA-Z0-9_.\\-\\/:]+)/g) {\n return string.replace(unsafe, function (match) {\n return match.split(\"\").map(function (c) {\n return \"%\" + c.charCodeAt(0).toString(16).toUpperCase();\n }).join(\"\");\n });\n}\n\nmodule.exports = smart_escape;\n","/**\n * Returns an ensureOption function that relies on the provided `defaultOptions` argument\n * for default values.\n * @private\n * @param {object} defaultOptions\n * @return {function(*, *, *=): *}\n */\nfunction defaults(defaultOptions) {\n return function ensureOption(options, name, defaultValue) {\n let value;\n\n if (typeof options[name] !== 'undefined') {\n value = options[name];\n } else if (typeof defaultOptions[name] !== 'undefined') {\n value = defaultOptions[name];\n } else if (typeof defaultValue !== 'undefined') {\n value = defaultValue;\n } else {\n throw `Must supply ${name}`;\n }\n\n return value;\n };\n}\n\n/**\n * Get the option `name` from options, the global config, or the default value.\n * If the value is not defined and no default value was provided,\n * the method will throw an error.\n * @private\n * @param {object} options\n * @param {string} name\n * @param {*} [defaultValue]\n * @return {*} the value associated with the provided `name` or the default.\n *\n */\nmodule.exports = defaults({});\n\nmodule.exports.defaults = defaults;\n","/**\n * Validate that the given values are defined\n * @private\n * @param {object} parameters where each key value pair is the name and value of the argument to validate.\n *\n * @example\n *\n * function foo(bar){\n * ensurePresenceOf({bar});\n * // ...\n * }\n */\nfunction ensurePresenceOf(parameters) {\n let missing = Object.keys(parameters).filter(key => parameters[key] === undefined);\n if (missing.length) {\n console.error(missing.join(',') + \" cannot be undefined\");\n }\n}\n\nmodule.exports = ensurePresenceOf;\n","module.exports = Object.entries ? Object.entries : function (obj) {\n let ownProps = Object.keys(obj),\n i = ownProps.length,\n resArray = new Array(i); // preallocate the Array\n while (i--) {\n resArray[i] = [ownProps[i], obj[ownProps[i]]];\n }\n\n return resArray;\n};\n","\n/**\n * Helper function. Gets or populates srcset breakpoints using provided parameters\n * Either the breakpoints or min_width, max_width, max_images must be provided.\n *\n * @module utils\n * @private\n * @param {srcset} srcset Options with either `breakpoints` or `min_width`, `max_width`, and `max_images`\n *\n * @return {number[]} Array of breakpoints\n *\n */\nfunction generateBreakpoints(srcset) {\n let breakpoints = srcset.breakpoints || [];\n if (breakpoints.length) {\n return breakpoints;\n }\n let [min_width, max_width, max_images] = [srcset.min_width, srcset.max_width, srcset.max_images].map(Number);\n if ([min_width, max_width, max_images].some(Number.isNaN)) {\n throw 'Either (min_width, max_width, max_images) '\n + 'or breakpoints must be provided to the image srcset attribute';\n }\n\n if (min_width > max_width) {\n throw 'min_width must be less than max_width';\n }\n\n if (max_images <= 0) {\n throw 'max_images must be a positive integer';\n } else if (max_images === 1) {\n min_width = max_width;\n }\n\n let stepSize = Math.ceil((max_width - min_width) / Math.max(max_images - 1, 1));\n for (let current = min_width; current < max_width; current += stepSize) {\n breakpoints.push(current);\n }\n breakpoints.push(max_width);\n return breakpoints;\n}\nmodule.exports = generateBreakpoints;\n","/**\n * Utilities\n * @module utils\n * @borrows module:auth_token as generate_auth_token\n */\n\nconst crypto = require(\"crypto\");\nconst querystring = require(\"querystring\");\nconst urlParse = require(\"url\").parse;\n\n// Functions used internally\nconst compact = require(\"lodash/compact\");\nconst first = require(\"lodash/first\");\nconst isFunction = require(\"lodash/isFunction\");\nconst isPlainObject = require(\"lodash/isPlainObject\");\nconst last = require(\"lodash/last\");\nconst map = require(\"lodash/map\");\nconst take = require(\"lodash/take\");\nconst at = require(\"lodash/at\");\n\n// Exposed by the module\nconst clone = require(\"lodash/clone\");\nconst extend = require(\"lodash/extend\");\nconst filter = require(\"lodash/filter\");\nconst includes = require(\"lodash/includes\");\nconst isArray = require(\"lodash/isArray\");\nconst isEmpty = require(\"lodash/isEmpty\");\nconst isNumber = require(\"lodash/isNumber\");\nconst isObject = require(\"lodash/isObject\");\nconst isString = require(\"lodash/isString\");\nconst isUndefined = require(\"lodash/isUndefined\");\n\nconst smart_escape = require(\"./encoding/smart_escape\");\nconst consumeOption = require('./parsing/consumeOption');\nconst toArray = require('./parsing/toArray');\nlet { base64EncodeURL } = require('./encoding/base64EncodeURL');\nconst encodeDoubleArray = require('./encoding/encodeDoubleArray');\n\nconst config = require(\"../config\");\nconst generate_token = require(\"../auth_token\");\nconst utf8_encode = require('./utf8_encode');\nconst crc32 = require('./crc32');\nconst ensurePresenceOf = require('./ensurePresenceOf');\nconst ensureOption = require('./ensureOption').defaults(config());\nconst entries = require('./entries');\nconst isRemoteUrl = require('./isRemoteUrl');\nconst getSDKVersions = require('./encoding/sdkAnalytics/getSDKVersions');\nconst {getAnalyticsOptions, getSDKAnalyticsSignature} = require('cloudinary-core').Util;\n\nexports = module.exports;\nconst utils = module.exports;\n\ntry {\n // eslint-disable-next-line global-require\n utils.VERSION = require('../../package.json').version;\n} catch (error) {\n utils.VERSION = '';\n}\n\nfunction generate_auth_token(options) {\n let token_options = Object.assign({}, config().auth_token, options);\n return generate_token(token_options);\n}\n\nexports.CF_SHARED_CDN = \"d3jpl91pxevbkh.cloudfront.net\";\nexports.OLD_AKAMAI_SHARED_CDN = \"cloudinary-a.akamaihd.net\";\nexports.AKAMAI_SHARED_CDN = \"res.cloudinary.com\";\nexports.SHARED_CDN = exports.AKAMAI_SHARED_CDN;\nexports.USER_AGENT = `CloudinaryNodeJS/${exports.VERSION} (Node ${process.versions.node})`;\n\n// Add platform information to the USER_AGENT header\n// This is intended for platform information and not individual applications!\nexports.userPlatform = \"\";\n\nfunction getUserAgent() {\n return isEmpty(utils.userPlatform) ? `${utils.USER_AGENT}` : `${utils.userPlatform} ${utils.USER_AGENT}`;\n}\n\nconst {\n DEFAULT_RESPONSIVE_WIDTH_TRANSFORMATION,\n DEFAULT_POSTER_OPTIONS,\n DEFAULT_VIDEO_SOURCE_TYPES,\n CONDITIONAL_OPERATORS,\n PREDEFINED_VARS,\n LAYER_KEYWORD_PARAMS,\n TRANSFORMATION_PARAMS,\n SIMPLE_PARAMS,\n UPLOAD_PREFIX,\n SUPPORTED_SIGNATURE_ALGORITHMS,\n DEFAULT_SIGNATURE_ALGORITHM\n} = require('./consts');\n\nfunction textStyle(layer) {\n let keywords = [];\n let style = \"\";\n\n if (!isEmpty(layer.text_style)) {\n return layer.text_style;\n }\n Object.keys(LAYER_KEYWORD_PARAMS).forEach((attr) => {\n let default_value = LAYER_KEYWORD_PARAMS[attr];\n let attr_value = layer[attr] || default_value;\n if (attr_value !== default_value) {\n keywords.push(attr_value);\n }\n });\n\n Object.keys(layer).forEach((attr) => {\n if (attr === \"letter_spacing\" || attr === \"line_spacing\") {\n keywords.push(`${attr}_${layer[attr]}`);\n }\n if (attr === \"font_hinting\") {\n keywords.push(`${attr.split(\"_\").pop()}_${layer[attr]}`);\n }\n if (attr === \"font_antialiasing\") {\n keywords.push(`antialias_${layer[attr]}`);\n }\n });\n\n if (layer.hasOwnProperty(\"font_size\" || \"font_family\") || !isEmpty(keywords)) {\n if (!layer.font_size) throw `Must supply font_size for text in overlay/underlay`;\n if (!layer.font_family) throw `Must supply font_family for text in overlay/underlay`;\n keywords.unshift(layer.font_size);\n keywords.unshift(layer.font_family);\n style = compact(keywords).join(\"_\");\n }\n return style;\n}\n\n/**\n * Normalize an expression string, replace \"nice names\" with their coded values and spaces with \"_\"\n * e.g. `width > 0` => `w_lt_0`\n *\n * @param {String} expression An expression to be normalized\n * @return {Object|String} A normalized String of the input value if possible otherwise the value itself\n */\nfunction normalize_expression(expression) {\n if (!isString(expression) || expression.length === 0 || expression.match(/^!.+!$/)) {\n return expression;\n }\n\n const operators = \"\\\\|\\\\||>=|<=|&&|!=|>|=|<|/|-|\\\\^|\\\\+|\\\\*\";\n const operatorsPattern = \"((\" + operators + \")(?=[ _]))\";\n const operatorsReplaceRE = new RegExp(operatorsPattern, \"g\");\n expression = expression.replace(operatorsReplaceRE, match => CONDITIONAL_OPERATORS[match]);\n\n // Duplicate PREDEFINED_VARS to also include :{var_name} as well as {var_name}\n // Example:\n // -- PREDEFINED_VARS = ['foo']\n // -- predefinedVarsPattern = ':foo|foo'\n // It is done like this because node 6 does not support regex lookbehind\n const predefinedVarsPattern = \"(\" + Object.keys(PREDEFINED_VARS).map(v => `:${v}|${v}`).join(\"|\") + \")\";\n const userVariablePattern = '(\\\\$_*[^_ ]+)';\n const variablesReplaceRE = new RegExp(`${userVariablePattern}|${predefinedVarsPattern}`, \"g\");\n expression = expression.replace(variablesReplaceRE, (match) => (PREDEFINED_VARS[match] || match));\n\n return expression.replace(/[ _]+/g, '_');\n}\n\n/**\n * Parse custom_function options\n * @private\n * @param {object|*} customFunction a custom function object containing function_type and source values\n * @return {string|*} custom_function transformation string\n */\nfunction process_custom_function(customFunction) {\n if (!isObject(customFunction)) {\n return customFunction;\n }\n if (customFunction.function_type === \"remote\") {\n const encodedSource = base64EncodeURL(customFunction.source);\n\n return [customFunction.function_type, encodedSource].join(\":\");\n }\n return [customFunction.function_type, customFunction.source].join(\":\");\n}\n\n/**\n * Parse custom_pre_function options\n * @private\n * @param {object|*} customPreFunction a custom function object containing function_type and source values\n * @return {string|*} custom_pre_function transformation string\n */\nfunction process_custom_pre_function(customPreFunction) {\n let result = process_custom_function(customPreFunction);\n return utils.isString(result) ? `pre:${result}` : null;\n}\n\n/**\n * Parse \"if\" parameter\n * Translates the condition if provided.\n * @private\n * @return {string} \"if_\" + ifValue\n */\nfunction process_if(ifValue) {\n return ifValue ? \"if_\" + normalize_expression(ifValue) : ifValue;\n}\n\n/**\n * Parse layer options\n * @private\n * @param {object|*} layer The layer to parse.\n * @return {string} layer transformation string\n */\nfunction process_layer(layer) {\n let result = '';\n if (isPlainObject(layer)) {\n if (layer.resource_type === \"fetch\" || (layer.url != null)) {\n result = `fetch:${base64EncodeURL(layer.url)}`;\n } else {\n let public_id = layer.public_id;\n let format = layer.format;\n let resource_type = layer.resource_type || \"image\";\n let type = layer.type || \"upload\";\n let text = layer.text;\n let style = null;\n let components = [];\n const noPublicId = isEmpty(public_id);\n if (!noPublicId) {\n public_id = public_id.replace(new RegExp(\"/\", 'g'), \":\");\n if (format != null) {\n public_id = `${public_id}.${format}`;\n }\n }\n if (isEmpty(text) && resource_type !== \"text\") {\n if (noPublicId) {\n throw \"Must supply public_id for resource_type layer_parameter\";\n }\n if (resource_type === \"subtitles\") {\n style = textStyle(layer);\n }\n } else {\n resource_type = \"text\";\n type = null;\n // type is ignored for text layers\n style = textStyle(layer);\n if (!isEmpty(text)) {\n const noStyle = isEmpty(style);\n if (!(noPublicId || noStyle) || (noPublicId && noStyle)) {\n throw \"Must supply either style parameters or a public_id when providing text parameter in a text overlay/underlay\";\n }\n let re = /\\$\\([a-zA-Z]\\w*\\)/g;\n let start = 0;\n let textSource = smart_escape(decodeURIComponent(text), /[,\\/]/g);\n text = \"\";\n for (let res = re.exec(textSource); res; res = re.exec(textSource)) {\n text += smart_escape(textSource.slice(start, res.index));\n text += res[0];\n start = res.index + res[0].length;\n }\n text += encodeURIComponent(textSource.slice(start));\n }\n }\n if (resource_type !== \"image\") {\n components.push(resource_type);\n }\n if (type !== \"upload\") {\n components.push(type);\n }\n components.push(style);\n components.push(public_id);\n components.push(text);\n result = compact(components).join(\":\");\n }\n } else if (/^fetch:.+/.test(layer)) {\n result = `fetch:${base64EncodeURL(layer.substr(6))}`;\n } else {\n result = layer;\n }\n return result;\n}\n\n/**\n * Parse radius options\n * @private\n * @param {Array|string|number} radius The radius to parse\n * @return {string} radius transformation string\n */\nfunction process_radius(radius) {\n if (!radius) {\n return radius;\n }\n if (!isArray(radius)) {\n radius = [radius];\n }\n if (radius.length === 0 || radius.length > 4) {\n throw new Error(\"Radius array should contain between 1 and 4 values\");\n }\n if (radius.findIndex(x => x === null) >= 0) {\n throw new Error(\"Corner: Cannot be null\");\n }\n return radius.map(normalize_expression).join(':');\n}\n\nfunction build_multi_and_sprite_params(tagOrOptions, options) {\n let tag = null;\n if (typeof tagOrOptions === 'string') {\n tag = tagOrOptions;\n } else {\n if (isEmpty(options)) {\n options = tagOrOptions;\n } else {\n throw new Error('First argument must be a tag when additional options are passed');\n }\n tag = null;\n }\n if (!options && !tag) {\n throw new Error('Either tag or urls are required')\n }\n if (!options) {\n options = {}\n }\n const urls = options.urls\n const transformation = generate_transformation_string(extend({}, options, {\n fetch_format: options.format\n }));\n return {\n tag,\n transformation,\n urls,\n timestamp: utils.timestamp(),\n async: options.async,\n notification_url: options.notification_url\n };\n}\n\nfunction build_upload_params(options) {\n let params = {\n access_mode: options.access_mode,\n allowed_formats: options.allowed_formats && toArray(options.allowed_formats).join(\",\"),\n async: utils.as_safe_bool(options.async),\n backup: utils.as_safe_bool(options.backup),\n callback: options.callback,\n cinemagraph_analysis: utils.as_safe_bool(options.cinemagraph_analysis),\n colors: utils.as_safe_bool(options.colors),\n discard_original_filename: utils.as_safe_bool(options.discard_original_filename),\n eager: utils.build_eager(options.eager),\n eager_async: utils.as_safe_bool(options.eager_async),\n eager_notification_url: options.eager_notification_url,\n eval: options.eval,\n exif: utils.as_safe_bool(options.exif),\n faces: utils.as_safe_bool(options.faces),\n folder: options.folder,\n format: options.format,\n filename_override: options.filename_override,\n image_metadata: utils.as_safe_bool(options.image_metadata),\n invalidate: utils.as_safe_bool(options.invalidate),\n moderation: options.moderation,\n notification_url: options.notification_url,\n overwrite: utils.as_safe_bool(options.overwrite),\n phash: utils.as_safe_bool(options.phash),\n proxy: options.proxy,\n public_id: options.public_id,\n quality_analysis: utils.as_safe_bool(options.quality_analysis),\n responsive_breakpoints: utils.generate_responsive_breakpoints_string(options.responsive_breakpoints),\n return_delete_token: utils.as_safe_bool(options.return_delete_token),\n timestamp: options.timestamp || exports.timestamp(),\n transformation: utils.generate_transformation_string(clone(options)),\n type: options.type,\n unique_filename: utils.as_safe_bool(options.unique_filename),\n upload_preset: options.upload_preset,\n use_filename: utils.as_safe_bool(options.use_filename),\n quality_override: options.quality_override,\n accessibility_analysis: utils.as_safe_bool(options.accessibility_analysis)\n };\n return utils.updateable_resource_params(options, params);\n}\n\nfunction encode_key_value(arg) {\n if (!isObject(arg)) { return arg; }\n return entries(arg).map(([k, v]) => `${k}=${v}`).join('|');\n}\n\n\n/**\n * @description Escape = and | with two backslashes \\\\\n * @param {string|number} value\n * @return {string}\n */\nfunction escapeMetadataValue(value) {\n return value.toString().replace(/([=|])/g, '\\\\$&');\n}\n\n\n/**\n *\n * @description Encode metadata fields based on incoming value.\n * If array, escape as color_id=[\\\"green\\\",\\\"red\\\"]\n * If string/number, escape as in_stock_id=50\n *\n * Joins resulting values with a pipe:\n * in_stock_id=50|color_id=[\\\"green\\\",\\\"red\\\"]\n *\n * = and | and escaped by default (this can't be turned off)\n *\n * @param metadataObj\n * @return {string}\n */\nfunction encode_context(metadataObj) {\n if (!isObject(metadataObj)) { return metadataObj; }\n\n return entries(metadataObj).map(([key, value]) => {\n // if string, simply parse the value and move on\n if (isString(value)) {\n return `${key}=${escapeMetadataValue(value)}`;\n\n // If array, parse each item individually\n } else if (isArray(value)) {\n let values = value.map((innerVal) => {\n return `\\\"${escapeMetadataValue(innerVal)}\\\"`\n }).join(',');\n return `${key}=[${values}]`\n // if unknown, return the value as string\n } else {\n return value.toString();\n }\n }).join('|');\n}\n\nfunction build_eager(transformations) {\n return toArray(transformations)\n .map((transformation) => {\n const transformationString = utils.generate_transformation_string(clone(transformation));\n const format = transformation.format;\n return format == null ? transformationString : `${transformationString}/${format}`;\n }).join('|');\n}\n/**\n * Build the custom headers for the request\n * @private\n * @param headers\n * @return {Array|object|string} An object of name and value,\n * an array of header strings, or a string of headers\n */\nfunction build_custom_headers(headers) {\n switch (true) {\n case headers == null:\n return void 0;\n case isArray(headers):\n return headers.join(\"\\n\");\n case isObject(headers):\n return entries(headers).map(([k, v]) => `${k}:${v}`).join(\"\\n\");\n default:\n return headers;\n }\n}\n\nfunction generate_transformation_string(options) {\n if (utils.isString(options)) {\n return options;\n }\n if (isArray(options)) {\n return options.map(t => utils.generate_transformation_string(clone(t))).filter(utils.present).join('/');\n }\n\n let responsive_width = consumeOption(options, \"responsive_width\", config().responsive_width);\n let width = options.width;\n let height = options.height;\n let size = consumeOption(options, \"size\");\n if (size) {\n [width, height] = size.split(\"x\");\n [options.width, options.height] = [width, height];\n }\n let has_layer = options.overlay || options.underlay;\n let crop = consumeOption(options, \"crop\");\n let angle = toArray(consumeOption(options, \"angle\")).join(\".\");\n let no_html_sizes = has_layer || utils.present(angle) || crop === \"fit\" || crop === \"limit\" || responsive_width;\n if (width && (width.toString().indexOf(\"auto\") === 0 || no_html_sizes || parseFloat(width) < 1)) {\n delete options.width;\n }\n if (height && (no_html_sizes || parseFloat(height) < 1)) {\n delete options.height;\n }\n let background = consumeOption(options, \"background\");\n background = background && background.replace(/^#/, \"rgb:\");\n let color = consumeOption(options, \"color\");\n color = color && color.replace(/^#/, \"rgb:\");\n let base_transformations = toArray(consumeOption(options, \"transformation\", []));\n let named_transformation = [];\n if (base_transformations.some(isObject)) {\n base_transformations = base_transformations.map(tr => utils.generate_transformation_string(\n isObject(tr) ? clone(tr) : { transformation: tr }\n ));\n } else {\n named_transformation = base_transformations.join(\".\");\n base_transformations = [];\n }\n let effect = consumeOption(options, \"effect\");\n if (isArray(effect)) {\n effect = effect.join(\":\");\n } else if (isObject(effect)) {\n effect = entries(effect).map(\n ([key, value]) => `${key}:${value}`\n );\n }\n let border = consumeOption(options, \"border\");\n if (isObject(border)) {\n border = `${border.width != null ? border.width : 2}px_solid_${(border.color != null ? border.color : \"black\").replace(/^#/, 'rgb:')}`;\n } else if (/^\\d+$/.exec(border)) { // fallback to html border attributes\n options.border = border;\n border = void 0;\n }\n let flags = toArray(consumeOption(options, \"flags\")).join(\".\");\n let dpr = consumeOption(options, \"dpr\", config().dpr);\n if (options.offset != null) {\n [options.start_offset, options.end_offset] = split_range(consumeOption(options, \"offset\"));\n }\n let overlay = process_layer(consumeOption(options, \"overlay\"));\n let radius = process_radius(consumeOption(options, \"radius\"));\n let underlay = process_layer(consumeOption(options, \"underlay\"));\n let ifValue = process_if(consumeOption(options, \"if\"));\n let custom_function = process_custom_function(consumeOption(options, \"custom_function\"));\n let custom_pre_function = process_custom_pre_function(consumeOption(options, \"custom_pre_function\"));\n let fps = consumeOption(options, 'fps');\n if (isArray(fps)) {\n fps = fps.join('-');\n }\n let params = {\n a: normalize_expression(angle),\n ar: normalize_expression(consumeOption(options, \"aspect_ratio\")),\n b: background,\n bo: border,\n c: crop,\n co: color,\n dpr: normalize_expression(dpr),\n e: normalize_expression(effect),\n fl: flags,\n fn: custom_function || custom_pre_function,\n fps: fps,\n h: normalize_expression(height),\n ki: normalize_expression(consumeOption(options, \"keyframe_interval\")),\n l: overlay,\n o: normalize_expression(consumeOption(options, \"opacity\")),\n q: normalize_expression(consumeOption(options, \"quality\")),\n r: radius,\n t: named_transformation,\n u: underlay,\n w: normalize_expression(width),\n x: normalize_expression(consumeOption(options, \"x\")),\n y: normalize_expression(consumeOption(options, \"y\")),\n z: normalize_expression(consumeOption(options, \"zoom\"))\n };\n\n SIMPLE_PARAMS.forEach(([name, short]) => {\n let value = consumeOption(options, name);\n if (value !== undefined) {\n params[short] = value;\n }\n });\n if (params.vc != null) {\n params.vc = process_video_params(params.vc);\n }\n [\"so\", \"eo\", \"du\"].forEach((short) => {\n if (params[short] !== undefined) {\n params[short] = norm_range_value(params[short]);\n }\n });\n\n let variablesParam = consumeOption(options, \"variables\", []);\n let variables = entries(options)\n .filter(([key, value]) => key.startsWith('$'))\n .map(([key, value]) => {\n delete options[key];\n return `${key}_${normalize_expression(value)}`;\n }).sort().concat(\n variablesParam.map(([name, value]) => `${name}_${normalize_expression(value)}`)\n ).join(',');\n\n let transformations = entries(params)\n .filter(([key, value]) => utils.present(value))\n .map(([key, value]) => key + '_' + value)\n .sort()\n .join(',');\n\n let raw_transformation = consumeOption(options, 'raw_transformation');\n transformations = compact([ifValue, variables, transformations, raw_transformation]).join(\",\");\n base_transformations.push(transformations);\n transformations = base_transformations;\n if (responsive_width) {\n let responsive_width_transformation = config().responsive_width_transformation\n || DEFAULT_RESPONSIVE_WIDTH_TRANSFORMATION;\n\n transformations.push(utils.generate_transformation_string(clone(responsive_width_transformation)));\n }\n if (String(width).startsWith(\"auto\") || responsive_width) {\n options.responsive = true;\n }\n if (dpr === \"auto\") {\n options.hidpi = true;\n }\n return filter(transformations, utils.present).join(\"/\");\n}\n\nfunction updateable_resource_params(options, params = {}) {\n if (options.access_control != null) {\n params.access_control = utils.jsonArrayParam(options.access_control);\n }\n if (options.auto_tagging != null) {\n params.auto_tagging = options.auto_tagging;\n }\n if (options.background_removal != null) {\n params.background_removal = options.background_removal;\n }\n if (options.categorization != null) {\n params.categorization = options.categorization;\n }\n if (options.context != null) {\n params.context = utils.encode_context(options.context);\n }\n if (options.metadata != null) {\n params.metadata = utils.encode_context(options.metadata);\n }\n if (options.custom_coordinates != null) {\n params.custom_coordinates = encodeDoubleArray(options.custom_coordinates);\n }\n if (options.detection != null) {\n params.detection = options.detection;\n }\n if (options.face_coordinates != null) {\n params.face_coordinates = encodeDoubleArray(options.face_coordinates);\n }\n if (options.headers != null) {\n params.headers = utils.build_custom_headers(options.headers);\n }\n if (options.notification_url != null) {\n params.notification_url = options.notification_url;\n }\n if (options.ocr != null) {\n params.ocr = options.ocr;\n }\n if (options.raw_convert != null) {\n params.raw_convert = options.raw_convert;\n }\n if (options.similarity_search != null) {\n params.similarity_search = options.similarity_search;\n }\n if (options.tags != null) {\n params.tags = toArray(options.tags).join(\",\");\n }\n if (options.quality_override != null) {\n params.quality_override = options.quality_override;\n }\n return params;\n}\n\n/**\n * A list of keys used by the url() function.\n * @private\n */\nconst URL_KEYS = [\n 'api_secret',\n 'auth_token',\n 'cdn_subdomain',\n 'cloud_name',\n 'cname',\n 'format',\n 'long_url_signature',\n 'private_cdn',\n 'resource_type',\n 'secure',\n 'secure_cdn_subdomain',\n 'secure_distribution',\n 'shorten',\n 'sign_url',\n 'ssl_detected',\n 'type',\n 'url_suffix',\n 'use_root_path',\n 'version'\n];\n\n/**\n * Create a new object with only URL parameters\n * @param {object} options The source object\n * @return {Object} An object containing only URL parameters\n */\n\nfunction extractUrlParams(options) {\n return pickOnlyExistingValues(options, ...URL_KEYS);\n}\n\n/**\n * Create a new object with only transformation parameters\n * @param {object} options The source object\n * @return {Object} An object containing only transformation parameters\n */\n\nfunction extractTransformationParams(options) {\n return pickOnlyExistingValues(options, ...TRANSFORMATION_PARAMS);\n}\n\n/**\n * Handle the format parameter for fetch urls\n * @private\n * @param options url and transformation options. This argument may be changed by the function!\n */\n\nfunction patchFetchFormat(options = {}) {\n if (options.type === \"fetch\") {\n if (options.fetch_format == null) {\n options.fetch_format = consumeOption(options, \"format\");\n }\n }\n}\n\nfunction url(public_id, options = {}) {\n let signature, source_to_sign;\n utils.patchFetchFormat(options);\n let type = consumeOption(options, \"type\", null);\n let transformation = utils.generate_transformation_string(options);\n\n let resource_type = consumeOption(options, \"resource_type\", \"image\");\n let version = consumeOption(options, \"version\");\n let force_version = consumeOption(options, \"force_version\", config().force_version);\n if (force_version == null) {\n force_version = true;\n }\n let long_url_signature = !!consumeOption(options, \"long_url_signature\", config().long_url_signature);\n let format = consumeOption(options, \"format\");\n let cloud_name = consumeOption(options, \"cloud_name\", config().cloud_name);\n if (!cloud_name) {\n throw \"Unknown cloud_name\";\n }\n let private_cdn = consumeOption(options, \"private_cdn\", config().private_cdn);\n let secure_distribution = consumeOption(options, \"secure_distribution\", config().secure_distribution);\n let secure = consumeOption(options, \"secure\", null);\n let ssl_detected = consumeOption(options, \"ssl_detected\", config().ssl_detected);\n if (secure === null) {\n secure = ssl_detected || config().secure;\n }\n let cdn_subdomain = consumeOption(options, \"cdn_subdomain\", config().cdn_subdomain);\n let secure_cdn_subdomain = consumeOption(options, \"secure_cdn_subdomain\", config().secure_cdn_subdomain);\n let cname = consumeOption(options, \"cname\", config().cname);\n let shorten = consumeOption(options, \"shorten\", config().shorten);\n let sign_url = consumeOption(options, \"sign_url\", config().sign_url);\n let api_secret = consumeOption(options, \"api_secret\", config().api_secret);\n let url_suffix = consumeOption(options, \"url_suffix\");\n let use_root_path = consumeOption(options, \"use_root_path\", config().use_root_path);\n let signature_algorithm = consumeOption(options, \"signature_algorithm\", config().signature_algorithm || DEFAULT_SIGNATURE_ALGORITHM);\n if (long_url_signature) {\n signature_algorithm = 'sha256';\n }\n let auth_token = consumeOption(options, \"auth_token\");\n if (auth_token !== false) {\n auth_token = exports.merge(config().auth_token, auth_token);\n }\n let preloaded = /^(image|raw)\\/([a-z0-9_]+)\\/v(\\d+)\\/([^#]+)$/.exec(public_id);\n if (preloaded) {\n resource_type = preloaded[1];\n type = preloaded[2];\n version = preloaded[3];\n public_id = preloaded[4];\n }\n let original_source = public_id;\n if (public_id == null) {\n return original_source;\n }\n public_id = public_id.toString();\n if (type === null && public_id.match(/^https?:\\//i)) {\n return original_source;\n }\n [resource_type, type] = finalize_resource_type(resource_type, type, url_suffix, use_root_path, shorten);\n [public_id, source_to_sign] = finalize_source(public_id, format, url_suffix);\n\n if (version == null && force_version && source_to_sign.indexOf(\"/\") >= 0 && !source_to_sign.match(/^v[0-9]+/) && !source_to_sign.match(/^https?:\\//)) {\n version = 1;\n }\n if (version != null) {\n version = `v${version}`;\n } else {\n version = null;\n }\n\n transformation = transformation.replace(/([^:])\\/\\//g, '$1/');\n if (sign_url && isEmpty(auth_token)) {\n let to_sign = [transformation, source_to_sign].filter(function (part) {\n return (part != null) && part !== '';\n }).join('/');\n try {\n for (let i = 0; to_sign !== decodeURIComponent(to_sign) && i < 10; i++) {\n to_sign = decodeURIComponent(to_sign);\n }\n // eslint-disable-next-line no-empty\n } catch (error) {\n }\n let hash = computeHash(to_sign + api_secret, signature_algorithm, 'base64');\n signature = hash.replace(/\\//g, '_').replace(/\\+/g, '-').substring(0, long_url_signature ? 32 : 8);\n signature = `s--${signature}--`;\n }\n let prefix = unsigned_url_prefix(\n public_id,\n cloud_name,\n private_cdn,\n cdn_subdomain,\n secure_cdn_subdomain,\n cname,\n secure,\n secure_distribution\n );\n let resultUrl = [prefix, resource_type, type, signature, transformation, version, public_id].filter(function (part) {\n return (part != null) && part !== '';\n }).join('/').replace(/ /g, '%20');\n if (sign_url && !isEmpty(auth_token)) {\n auth_token.url = urlParse(resultUrl).path;\n let token = generate_token(auth_token);\n resultUrl += `?${token}`;\n }\n\n let urlAnalytics = ensureOption(options, 'urlAnalytics', false);\n\n if (urlAnalytics === true) {\n let sdkVersions = getSDKVersions();\n let analyticsOptions = getAnalyticsOptions(Object.assign({}, options, sdkVersions));\n\n let sdkAnalyticsSignature = getSDKAnalyticsSignature(analyticsOptions);\n\n // url might already have a '?' query param\n let appender = '?';\n if (resultUrl.indexOf('?') >= 0) {\n appender = '&';\n }\n resultUrl = `${resultUrl}${appender}_s=${sdkAnalyticsSignature}`;\n }\n\n return resultUrl;\n}\n\nfunction video_url(public_id, options) {\n options = extend({\n resource_type: 'video'\n }, options);\n return utils.url(public_id, options);\n}\n\nfunction finalize_source(source, format, url_suffix) {\n let source_to_sign;\n source = source.replace(/([^:])\\/\\//g, '$1/');\n if (source.match(/^https?:\\//i)) {\n source = smart_escape(source);\n source_to_sign = source;\n } else {\n source = encodeURIComponent(decodeURIComponent(source)).replace(/%3A/g, \":\").replace(/%2F/g, \"/\");\n source_to_sign = source;\n if (url_suffix) {\n if (url_suffix.match(/[\\.\\/]/)) {\n throw new Error('url_suffix should not include . or /');\n }\n source = source + '/' + url_suffix;\n }\n if (format != null) {\n source = source + '.' + format;\n source_to_sign = source_to_sign + '.' + format;\n }\n }\n return [source, source_to_sign];\n}\n\nfunction video_thumbnail_url(public_id, options) {\n options = extend({}, DEFAULT_POSTER_OPTIONS, options);\n return utils.url(public_id, options);\n}\n\nfunction finalize_resource_type(resource_type, type, url_suffix, use_root_path, shorten) {\n if (type == null) {\n type = 'upload';\n }\n if (url_suffix != null) {\n if (resource_type === 'image' && type === 'upload') {\n resource_type = \"images\";\n type = null;\n } else if (resource_type === 'image' && type === 'private') {\n resource_type = 'private_images';\n type = null;\n } else if (resource_type === 'image' && type === 'authenticated') {\n resource_type = 'authenticated_images';\n type = null;\n } else if (resource_type === 'raw' && type === 'upload') {\n resource_type = 'files';\n type = null;\n } else if (resource_type === 'video' && type === 'upload') {\n resource_type = 'videos';\n type = null;\n } else {\n throw new Error(\"URL Suffix only supported for image/upload, image/private, image/authenticated, video/upload and raw/upload\");\n }\n }\n if (use_root_path) {\n if ((resource_type === 'image' && type === 'upload') || (resource_type === 'images' && (type == null))) {\n resource_type = null;\n type = null;\n } else {\n throw new Error(\"Root path only supported for image/upload\");\n }\n }\n if (shorten && resource_type === 'image' && type === 'upload') {\n resource_type = 'iu';\n type = null;\n }\n return [resource_type, type];\n}\n// cdn_subdomain and secure_cdn_subdomain\n// 1) Customers in shared distribution (e.g. res.cloudinary.com)\n// if cdn_domain is true uses res-[1-5].cloudinary.com for both http and https.\n// Setting secure_cdn_subdomain to false disables this for https.\n// 2) Customers with private cdn\n// if cdn_domain is true uses cloudname-res-[1-5].cloudinary.com for http\n// if secure_cdn_domain is true uses cloudname-res-[1-5].cloudinary.com for https\n// (please contact support if you require this)\n// 3) Customers with cname\n// if cdn_domain is true uses a[1-5].cname for http.\n// For https, uses the same naming scheme as 1 for shared distribution and as 2 for private distribution.\n\nfunction unsigned_url_prefix(\n source,\n cloud_name,\n private_cdn,\n cdn_subdomain,\n secure_cdn_subdomain,\n cname,\n secure,\n secure_distribution\n) {\n let prefix;\n if (cloud_name.indexOf(\"/\") === 0) {\n return '/res' + cloud_name;\n }\n let shared_domain = !private_cdn;\n if (secure) {\n if ((secure_distribution == null) || secure_distribution === exports.OLD_AKAMAI_SHARED_CDN) {\n secure_distribution = private_cdn ? cloud_name + \"-res.cloudinary.com\" : exports.SHARED_CDN;\n }\n if (shared_domain == null) {\n shared_domain = secure_distribution === exports.SHARED_CDN;\n }\n if ((secure_cdn_subdomain == null) && shared_domain) {\n secure_cdn_subdomain = cdn_subdomain;\n }\n if (secure_cdn_subdomain) {\n secure_distribution = secure_distribution.replace('res.cloudinary.com', 'res-' + ((crc32(source) % 5) + 1 + '.cloudinary.com'));\n }\n prefix = 'https://' + secure_distribution;\n } else if (cname) {\n let subdomain = cdn_subdomain ? 'a' + ((crc32(source) % 5) + 1) + '.' : '';\n prefix = 'http://' + subdomain + cname;\n } else {\n let cdn_part = private_cdn ? cloud_name + '-' : '';\n let subdomain_part = cdn_subdomain ? '-' + ((crc32(source) % 5) + 1) : '';\n let host = [cdn_part, 'res', subdomain_part, '.cloudinary.com'].join('');\n prefix = 'http://' + host;\n }\n if (shared_domain) {\n prefix += '/' + cloud_name;\n }\n return prefix;\n}\n\nfunction base_api_url(path= [], options = {}) {\n let cloudinary = ensureOption(options, \"upload_prefix\", UPLOAD_PREFIX);\n let cloud_name = ensureOption(options, \"cloud_name\");\n let encode_path = unencoded_path => encodeURIComponent(unencoded_path).replace(\"'\", '%27');\n let encoded_path = Array.isArray(path) ? path.map(encode_path) : encode_path(path);\n return [cloudinary, \"v1_1\", cloud_name].concat(encoded_path).join(\"/\");\n}\n\nfunction api_url(action = 'upload', options = {}) {\n let resource_type = options.resource_type || \"image\";\n return base_api_url([resource_type, action], options);\n}\n\nfunction random_public_id() {\n return crypto.randomBytes(12).toString('base64').replace(/[^a-z0-9]/g, \"\");\n}\n\nfunction signed_preloaded_image(result) {\n return `${result.resource_type}/upload/v${result.version}/${filter([result.public_id, result.format], utils.present).join(\".\")}#${result.signature}`;\n}\n\nfunction api_sign_request(params_to_sign, api_secret) {\n let to_sign = entries(params_to_sign).filter(\n ([k, v]) => utils.present(v)\n ).map(\n ([k, v]) => `${k}=${toArray(v).join(\",\")}`\n ).sort().join(\"&\");\n return computeHash(to_sign + api_secret, config().signature_algorithm || DEFAULT_SIGNATURE_ALGORITHM, 'hex');\n}\n\n/**\n * Computes hash from input string using specified algorithm.\n * @private\n * @param {string} input string which to compute hash from\n * @param {string} signature_algorithm algorithm to use for computing hash\n * @param {string} encoding type of encoding\n * @return {string} computed hash value\n */\nfunction computeHash(input, signature_algorithm, encoding) {\n if (!SUPPORTED_SIGNATURE_ALGORITHMS.includes(signature_algorithm)) {\n throw new Error(`Signature algorithm ${signature_algorithm} is not supported. Supported algorithms: ${SUPPORTED_SIGNATURE_ALGORITHMS.join(', ')}`);\n }\n let hash = crypto.createHash(signature_algorithm);\n hash.update(utf8_encode(input), 'binary');\n return hash.digest(encoding);\n}\n\nfunction clear_blank(hash) {\n let filtered_hash = {};\n entries(hash).filter(\n ([k, v]) => utils.present(v)\n ).forEach(\n ([k, v]) => { filtered_hash[k] = v; }\n );\n return filtered_hash;\n}\n\nfunction merge(hash1, hash2) {\n return { ...hash1, ...hash2 };\n}\n\nfunction sign_request(params, options = {}) {\n let apiKey = ensureOption(options, 'api_key');\n let apiSecret = ensureOption(options, 'api_secret');\n params = exports.clear_blank(params);\n params.signature = exports.api_sign_request(params, apiSecret);\n params.api_key = apiKey;\n return params;\n}\n\nfunction webhook_signature(data, timestamp, options = {}) {\n ensurePresenceOf({ data, timestamp });\n\n let api_secret = ensureOption(options, 'api_secret');\n let signature_algorithm = ensureOption(options, 'signature_algorithm', DEFAULT_SIGNATURE_ALGORITHM);\n return computeHash(data + timestamp + api_secret, signature_algorithm, 'hex');\n}\n\n/**\n * Verifies the authenticity of a notification signature\n *\n * @param {string} body JSON of the request's body\n * @param {number} timestamp Unix timestamp in seconds. Can be retrieved from the X-Cld-Timestamp header\n * @param {string} signature Actual signature. Can be retrieved from the X-Cld-Signature header\n * @param {number} [valid_for=7200] The desired time in seconds for considering the request valid\n *\n * @return {boolean}\n */\nfunction verifyNotificationSignature(body, timestamp, signature, valid_for = 7200) {\n // verify that signature is valid for the given timestamp\n if (timestamp < Math.round(Date.now() / 1000) - valid_for) {\n return false;\n }\n const payload_hash = utils.webhook_signature(body, timestamp, {\n api_secret: config().api_secret,\n signature_algorithm: config().signature_algorithm\n });\n return signature === payload_hash;\n}\n\nfunction process_request_params(params, options) {\n if ((options.unsigned != null) && options.unsigned) {\n params = exports.clear_blank(params);\n delete params.timestamp;\n } else if (options.oauth_token || config().oauth_token) {\n params = exports.clear_blank(params);\n } else if (options.signature) {\n params = exports.clear_blank(options);\n } else {\n params = exports.sign_request(params, options);\n }\n\n return params;\n}\n\nfunction private_download_url(public_id, format, options = {}) {\n let params = exports.sign_request({\n timestamp: options.timestamp || exports.timestamp(),\n public_id: public_id,\n format: format,\n type: options.type,\n attachment: options.attachment,\n expires_at: options.expires_at\n }, options);\n return exports.api_url(\"download\", options) + \"?\" + querystring.stringify(params);\n}\n\n/**\n * Utility method that uses the deprecated ZIP download API.\n * @deprecated Replaced by {download_zip_url} that uses the more advanced and robust archive generation and download API\n */\n\nfunction zip_download_url(tag, options = {}) {\n let params = exports.sign_request({\n timestamp: options.timestamp || exports.timestamp(),\n tag: tag,\n transformation: utils.generate_transformation_string(options)\n }, options);\n return exports.api_url(\"download_tag.zip\", options) + \"?\" + hashToQuery(params);\n}\n\n/**\n * The returned url should allow downloading the backedup asset based on the\n * version and asset id\n * asset and version id are returned with resource(, { versions: true })\n * @param asset_id\n * @param version_id\n * @param options\n * @returns {string }\n */\nfunction download_backedup_asset(asset_id, version_id, options = {}) {\n let params = exports.sign_request({\n timestamp: options.timestamp || exports.timestamp(),\n asset_id: asset_id,\n version_id: version_id\n }, options);\n return exports.base_api_url(['download_backup'], options) + \"?\" + hashToQuery(params);\n}\n\n/**\n * Utility method to create a signed URL for specified resources.\n * @param action\n * @param params\n * @param options\n */\nfunction api_download_url(action, params, options) {\n const download_params = {...params, mode: \"download\"}\n let cloudinary_params = exports.sign_request(download_params, options);\n return exports.api_url(action, options) + \"?\" + hashToQuery(cloudinary_params);\n}\n\n/**\n * Returns a URL that when invokes creates an archive and returns it.\n * @param {object} options\n * @param {string} [options.resource_type=\"image\"] The resource type of files to include in the archive.\n * Must be one of :image | :video | :raw\n * @param {string} [options.type=\"upload\"] The specific file type of resources: :upload|:private|:authenticated\n * @param {string|Array} [options.tags] list of tags to include in the archive\n * @param {string|Array} [options.public_ids] list of public_ids to include in the archive\n * @param {string|Array} [options.prefixes] list of prefixes of public IDs (e.g., folders).\n * @param {string|Array} [options.fully_qualified_public_ids] list of fully qualified public_ids to include\n * in the archive.\n * @param {string|Array} [options.transformations] list of transformations.\n * The derived images of the given transformations are included in the archive. Using the string representation of\n * multiple chained transformations as we use for the 'eager' upload parameter.\n * @param {string} [options.mode=\"create\"] return the generated archive file or to store it as a raw resource and\n * return a JSON with URLs for accessing the archive. Possible values: :download, :create\n * @param {string} [options.target_format=\"zip\"]\n * @param {string} [options.target_public_id] public ID of the generated raw resource.\n * Relevant only for the create mode. If not specified, random public ID is generated.\n * @param {boolean} [options.flatten_folders=false] If true, flatten public IDs with folders to be in the root\n * of the archive. Add numeric counter to the file name in case of a name conflict.\n * @param {boolean} [options.flatten_transformations=false] If true, and multiple transformations are given,\n * flatten the folder structure of derived images and store the transformation details on the file name instead.\n * @param {boolean} [options.use_original_filename] Use the original file name of included images\n * (if available) instead of the public ID.\n * @param {boolean} [options.async=false] If true, return immediately and perform archive creation in the background.\n * Relevant only for the create mode.\n * @param {string} [options.notification_url] URL to send an HTTP post request (webhook) to when the\n * archive creation is completed.\n * @param {string|Array} [options.target_tags=] Allows assigning one or more tags to the generated archive file\n * (for later housekeeping via the admin API).\n * @param {string} [options.keep_derived=false] keep the derived images used for generating the archive\n * @return {String} archive url\n */\nfunction download_archive_url(options = {}) {\n const params = exports.archive_params(merge(options, {\n mode: \"download\"\n }))\n return api_download_url(\"generate_archive\", params, options)\n}\n\n/**\n * Returns a URL that when invokes creates an zip archive and returns it.\n * @see download_archive_url\n */\n\nfunction download_zip_url(options = {}) {\n return exports.download_archive_url(merge(options, {\n target_format: \"zip\"\n }));\n}\n\n/**\n * Creates and returns a URL that when invoked creates an archive of a folder\n * @param {string} folder_path Full path (from the root) of the folder to download\n * @param {object} options Additional options\n * @returns {string} Url for downloading an archive of a folder\n */\nfunction download_folder(folder_path, options = {}) {\n options.resource_type = options.resource_type || \"all\";\n options.prefixes = folder_path;\n let cloudinary_params = exports.sign_request(exports.archive_params(merge(options, {\n mode: \"download\"\n })), options);\n return exports.api_url(\"generate_archive\", options) + \"?\" + hashToQuery(cloudinary_params);\n}\n\n/**\n * Render the key/value pair as an HTML tag attribute\n * @private\n * @param {string} key\n * @param {string|boolean|number} [value]\n * @return {string} A string representing the HTML attribute\n */\nfunction join_pair(key, value) {\n if (!value) { return void 0; }\n return value === true ? key : key + \"='\" + value + \"'\";\n}\n\n/**\n * If the given value is a string, replaces single or double quotes with character entities\n * @private\n * @param {*} value The string to encode quotes in\n * @return {*} Encoded string or original value if not a string\n */\nfunction escapeQuotes(value) {\n return isString(value) ? value.replace(/\\\"/g, '"').replace(/\\'/g, ''') : value;\n}\n\n/**\n *\n * @param attrs\n * @return {*}\n */\nexports.html_attrs = function html_attrs(attrs) {\n return filter(map(attrs, function (value, key) {\n return join_pair(key, escapeQuotes(value));\n })).sort().join(\" \");\n};\n\nconst CLOUDINARY_JS_CONFIG_PARAMS = ['api_key', 'cloud_name', 'private_cdn', 'secure_distribution', 'cdn_subdomain'];\n\nfunction cloudinary_js_config() {\n let params = pickOnlyExistingValues(config(), ...CLOUDINARY_JS_CONFIG_PARAMS);\n return ``;\n}\n\nfunction v1_result_adapter(callback) {\n if (callback == null) { return undefined; }\n return function (result) {\n if (result.error != null) {\n return callback(result.error);\n }\n return callback(void 0, result);\n };\n}\n\nfunction v1_adapter(name, num_pass_args, v1) {\n return function (...args) {\n let pass_args = take(args, num_pass_args);\n let options = args[num_pass_args];\n let callback = args[num_pass_args + 1];\n if ((callback == null) && isFunction(options)) {\n callback = options;\n options = {};\n }\n callback = v1_result_adapter(callback);\n args = pass_args.concat([callback, options]);\n return v1[name].apply(this, args);\n };\n}\n\nfunction v1_adapters(exports, v1, mapping) {\n return Object.keys(mapping).map((name) => {\n let num_pass_args = mapping[name];\n exports[name] = v1_adapter(name, num_pass_args, v1);\n return exports[name];\n });\n}\n\nfunction as_safe_bool(value) {\n if (value == null) {\n return void 0;\n }\n if (value === true || value === 'true' || value === '1') {\n value = 1;\n }\n if (value === false || value === 'false' || value === '0') {\n value = 0;\n }\n return value;\n}\n\nconst NUMBER_PATTERN = \"([0-9]*)\\\\.([0-9]+)|([0-9]+)\";\n\nconst OFFSET_ANY_PATTERN = `(${NUMBER_PATTERN})([%pP])?`;\nconst RANGE_VALUE_RE = RegExp(`^${OFFSET_ANY_PATTERN}$`);\nconst OFFSET_ANY_PATTERN_RE = RegExp(`(${OFFSET_ANY_PATTERN})\\\\.\\\\.(${OFFSET_ANY_PATTERN})`);\n\n// Split a range into the start and end values\nfunction split_range(range) { // :nodoc:\n switch (range.constructor) {\n case String:\n if (!OFFSET_ANY_PATTERN_RE.test(range)) {\n return range;\n }\n return range.split(\"..\");\n case Array:\n return [first(range), last(range)];\n default:\n return [null, null];\n }\n}\n\nfunction norm_range_value(value) { // :nodoc:\n let offset = String(value).match(RANGE_VALUE_RE);\n if (offset) {\n let modifier = offset[5] ? 'p' : '';\n value = `${offset[1] || offset[4]}${modifier}`;\n }\n return value;\n}\n\n/**\n * A video codec parameter can be either a String or a Hash.\n * @param {Object} param vc_[ : : []] \n * or { codec: 'h264', profile: 'basic', level: '3.1' }\n * @return {String} : : []] `;\n};\n\nfunction build_explicit_api_params(public_id, options = {}) {\n return [exports.build_upload_params(extend({}, { public_id }, options))];\n}\n\nfunction generate_responsive_breakpoints_string(breakpoints) {\n if (breakpoints == null) {\n return null;\n }\n breakpoints = clone(breakpoints);\n if (!isArray(breakpoints)) {\n breakpoints = [breakpoints];\n }\n for (let j = 0; j < breakpoints.length; j++) {\n let breakpoint_settings = breakpoints[j];\n if (breakpoint_settings != null) {\n if (breakpoint_settings.transformation) {\n breakpoint_settings.transformation = utils.generate_transformation_string(\n clone(breakpoint_settings.transformation)\n );\n }\n }\n }\n return JSON.stringify(breakpoints);\n}\n\nfunction build_streaming_profiles_param(options = {}) {\n let params = pickOnlyExistingValues(options, \"display_name\", \"representations\");\n if (isArray(params.representations)) {\n params.representations = JSON.stringify(params.representations.map(\n r => ({\n transformation: utils.generate_transformation_string(r.transformation)\n })\n ));\n }\n return params;\n}\n\nfunction hashToParameters(hash) {\n return entries(hash).reduce((parameters, [key, value]) => {\n if (isArray(value)) {\n key = key.endsWith('[]') ? key : key + '[]';\n const items = value.map(v => [key, v]);\n parameters = parameters.concat(items);\n } else {\n parameters.push([key, value]);\n }\n return parameters;\n }, []);\n}\n\n/**\n * Convert a hash of values to a URI query string.\n * Array values are spread as individual parameters.\n * @param {object} hash Key-value parameters\n * @return {string} A URI query string.\n */\nfunction hashToQuery(hash) {\n return hashToParameters(hash).map(\n ([key, value]) => `${querystring.escape(key)}=${querystring.escape(value)}`\n ).join('&');\n}\n\n/**\n * Verify that the parameter `value` is defined and it's string value is not zero.\n * } data\n * @param {function(*):*} [modifier] called with the array before the array is stringified\n * @return {String|null} a JSON array string or `null` if data is `null`\n */\n\nfunction jsonArrayParam(data, modifier) {\n if (!data) {\n return null;\n }\n if (isString(data)) {\n data = JSON.parse(data);\n }\n if (!isArray(data)) {\n data = [data];\n }\n if (isFunction(modifier)) {\n data = modifier(data);\n }\n return JSON.stringify(data);\n}\n\n/**\n * Empty function - do nothing\n *\n */\nexports.NOP = function () {};\nexports.generate_auth_token = generate_auth_token;\nexports.getUserAgent = getUserAgent;\nexports.build_upload_params = build_upload_params;\nexports.build_multi_and_sprite_params = build_multi_and_sprite_params;\nexports.api_download_url = api_download_url;\nexports.timestamp = () => Math.floor(new Date().getTime() / 1000);\nexports.option_consume = consumeOption; // for backwards compatibility\nexports.build_array = toArray; // for backwards compatibility\nexports.encode_double_array = encodeDoubleArray;\nexports.encode_key_value = encode_key_value;\nexports.encode_context = encode_context;\nexports.build_eager = build_eager;\nexports.build_custom_headers = build_custom_headers;\nexports.generate_transformation_string = generate_transformation_string;\nexports.updateable_resource_params = updateable_resource_params;\nexports.extractUrlParams = extractUrlParams;\nexports.extractTransformationParams = extractTransformationParams;\nexports.patchFetchFormat = patchFetchFormat;\nexports.url = url;\nexports.video_url = video_url;\nexports.video_thumbnail_url = video_thumbnail_url;\nexports.api_url = api_url;\nexports.random_public_id = random_public_id;\nexports.signed_preloaded_image = signed_preloaded_image;\nexports.api_sign_request = api_sign_request;\nexports.clear_blank = clear_blank;\nexports.merge = merge;\nexports.sign_request = sign_request;\nexports.webhook_signature = webhook_signature;\nexports.verifyNotificationSignature = verifyNotificationSignature;\nexports.process_request_params = process_request_params;\nexports.private_download_url = private_download_url;\nexports.zip_download_url = zip_download_url;\nexports.download_archive_url = download_archive_url;\nexports.download_zip_url = download_zip_url;\nexports.cloudinary_js_config = cloudinary_js_config;\nexports.v1_adapters = v1_adapters;\nexports.as_safe_bool = as_safe_bool;\nexports.archive_params = archive_params;\nexports.build_explicit_api_params = build_explicit_api_params;\nexports.generate_responsive_breakpoints_string = generate_responsive_breakpoints_string;\nexports.build_streaming_profiles_param = build_streaming_profiles_param;\nexports.hashToParameters = hashToParameters;\nexports.present = present;\nexports.only = pickOnlyExistingValues; // for backwards compatibility\nexports.pickOnlyExistingValues = pickOnlyExistingValues;\nexports.jsonArrayParam = jsonArrayParam;\nexports.download_folder = download_folder;\nexports.base_api_url = base_api_url;\nexports.download_backedup_asset = download_backedup_asset;\n\n// was exported before, so kept for backwards compatibility\nexports.DEFAULT_POSTER_OPTIONS = DEFAULT_POSTER_OPTIONS;\nexports.DEFAULT_VIDEO_SOURCE_TYPES = DEFAULT_VIDEO_SOURCE_TYPES;\n\nObject.assign(module.exports, {\n normalize_expression,\n at,\n clone,\n extend,\n filter,\n includes,\n isArray,\n isEmpty,\n isNumber,\n isObject,\n isRemoteUrl,\n isString,\n isUndefined,\n keys: source => Object.keys(source),\n ensurePresenceOf\n});\n","const isString = require('lodash/isString');\n\n/**\n * Checks whether a given url or path is a local file\n * @param {string} url the url or path to the file\n * @returns {boolean} true if the given url is a remote location or data\n */\nfunction isRemoteUrl(url) {\n return isString(url) && /^ftp:|^https?:|^gs:|^s3:|^data:([\\w-.]+\\/[\\w-.]+(\\+[\\w-.]+)?)?(;[\\w-.]+=[\\w-.]+)*;base64,([a-zA-Z0-9\\/+\\n=]+)$/.test(url);\n}\n\nmodule.exports = isRemoteUrl;\n","/**\n * Deletes `option_name` from `options` and return the value if present.\n * If `options` doesn't contain `option_name` the default value is returned.\n * @param {Object} options a collection\n * @param {String} option_name the name (key) of the desired value\n * @param {*} [default_value] the value to return is option_name is missing\n */\n\nfunction consumeOption(options, option_name, default_value) {\n let result = options[option_name];\n delete options[option_name];\n return result != null ? result : default_value;\n}\n\nmodule.exports = consumeOption;\n","const isArray = require('lodash/isArray');\n\n/**\n * @desc Turns arguments that aren't arrays into arrays\n * @param arg\n * @returns { any | any[] }\n */\nfunction toArray(arg) {\n switch (true) {\n case arg == null:\n return [];\n case isArray(arg):\n return arg;\n default:\n return [arg];\n }\n}\n\nmodule.exports = toArray;\n","\nconst utils = require('./index');\nconst generateBreakpoints = require('./generateBreakpoints');\nconst Cache = require('../cache');\n\nconst isEmpty = utils.isEmpty;\n\n/**\n * Options used to generate the srcset attribute.\n * @typedef {object} srcset\n * @property {(number[]|string[])} [breakpoints] An array of breakpoints.\n * @property {number} [min_width] Minimal width of the srcset images.\n * @property {number} [max_width] Maximal width of the srcset images.\n * @property {number} [max_images] Number of srcset images to generate.\n * @property {object|string} [transformation] The transformation to use in the srcset urls.\n * @property {boolean} [sizes] Whether to calculate and add the sizes attribute.\n */\n\n/**\n * Helper function. Generates a single srcset item url\n *\n * @private\n * @param {string} public_id Public ID of the resource.\n * @param {number} width Width in pixels of the srcset item.\n * @param {object|string} transformation\n * @param {object} options Additional options.\n *\n * @return {string} Resulting URL of the item\n */\nfunction scaledUrl(public_id, width, transformation, options = {}) {\n let configParams = utils.extractUrlParams(options);\n transformation = transformation || options;\n configParams.raw_transformation = utils.generate_transformation_string([utils.extend({}, transformation), { crop: 'scale', width: width }]);\n\n return utils.url(public_id, configParams);\n}\n\n/**\n * If cache is enabled, get the breakpoints from the cache. If the values were not found in the cache,\n * or cache is not enabled, generate the values.\n * @param {srcset} srcset The srcset configuration parameters\n * @param {string} public_id\n * @param {object} options\n * @return {*|Array}\n */\nfunction getOrGenerateBreakpoints(public_id, srcset = {}, options = {}) {\n let breakpoints = [];\n if (srcset.useCache) {\n breakpoints = Cache.get(public_id, options);\n if (!breakpoints) {\n breakpoints = [];\n }\n } else {\n breakpoints = generateBreakpoints(srcset);\n }\n return breakpoints;\n}\n\n/**\n * Helper function. Generates srcset attribute value of the HTML img tag\n * @private\n *\n * @param {string} public_id Public ID of the resource\n * @param {number[]} breakpoints An array of breakpoints (in pixels)\n * @param {object} transformation The transformation\n * @param {object} options Includes html tag options, transformation options\n * @return {string} Resulting srcset attribute value\n */\nfunction generateSrcsetAttribute(public_id, breakpoints, transformation, options) {\n options = utils.clone(options);\n utils.patchFetchFormat(options);\n return breakpoints.map(width => `${scaledUrl(public_id, width, transformation, options)} ${width}w`).join(', ');\n}\n\n/**\n * Helper function. Generates sizes attribute value of the HTML img tag\n * @private\n * @param {number[]} breakpoints An array of breakpoints.\n * @return {string} Resulting sizes attribute value\n */\nfunction generateSizesAttribute(breakpoints = []) {\n return breakpoints.map(width => `(max-width: ${width}px) ${width}px`).join(', ');\n}\n\n/**\n * Helper function. Generates srcset and sizes attributes of the image tag\n *\n * Generated attributes are added to attributes argument\n *\n * @private\n * @param {string} publicId The public ID of the resource\n * @param {object} attributes Existing HTML attributes.\n * @param {srcset} srcsetData\n * @param {object} options Additional options.\n *\n * @return array The responsive attributes\n */\nfunction generateImageResponsiveAttributes(publicId, attributes = {}, srcsetData = {}, options = {}) {\n // Create both srcset and sizes here to avoid fetching breakpoints twice\n\n let responsiveAttributes = {};\n if (isEmpty(srcsetData)) {\n return responsiveAttributes;\n }\n\n const generateSizes = (!attributes.sizes && srcsetData.sizes === true);\n\n const generateSrcset = !attributes.srcset;\n if (generateSrcset || generateSizes) {\n let breakpoints = getOrGenerateBreakpoints(publicId, srcsetData, options);\n\n if (generateSrcset) {\n let transformation = srcsetData.transformation;\n let srcsetAttr = generateSrcsetAttribute(publicId, breakpoints, transformation, options);\n if (!isEmpty(srcsetAttr)) {\n responsiveAttributes.srcset = srcsetAttr;\n }\n }\n\n if (generateSizes) {\n let sizesAttr = generateSizesAttribute(breakpoints);\n if (!isEmpty(sizesAttr)) {\n responsiveAttributes.sizes = sizesAttr;\n }\n }\n }\n return responsiveAttributes;\n}\n\n/**\n * Generate a media query\n *\n * @private\n * @param {object} options configuration options\n * @param {number|string} options.min_width\n * @param {number|string} options.max_width\n * @return {string} a media query string\n */\nfunction generateMediaAttr(options = {}) {\n let mediaQuery = [];\n if (options.min_width != null) {\n mediaQuery.push(`(min-width: ${options.min_width}px)`);\n }\n if (options.max_width != null) {\n mediaQuery.push(`(max-width: ${options.max_width}px)`);\n }\n return mediaQuery.join(' and ');\n}\n\nmodule.exports = {\n srcsetUrl: scaledUrl,\n generateSrcsetAttribute,\n generateSizesAttribute,\n generateMediaAttr,\n generateImageResponsiveAttributes\n};\n","/* eslint-disable no-bitwise */\n// http://kevin.vanzonneveld.net\n// + original by: Webtoolkit.info (http://www.webtoolkit.info/)\n// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)\n// + improved by: sowberry\n// + tweaked by: Jack\n// + bugfixed by: Onno Marsman\n// + improved by: Yves Sucaet\n// + bugfixed by: Onno Marsman\n// + bugfixed by: Ulrich\n// + bugfixed by: Rafal Kukawski\n// + improved by: kirilloid\n// * example 1: utf8_encode('Kevin van Zonneveld')\n// * returns 1: 'Kevin van Zonneveld'\n\n/**\n * Encode the given string\n * @private\n * @param {string} argString the string to encode\n * @return {string}\n */\nmodule.exports = function utf8_encode(argString) {\n let c1, enc, n;\n if (argString == null) {\n return \"\";\n }\n let string = argString + \"\";\n let utftext = \"\";\n let start = 0;\n let end = 0;\n let stringl = string.length;\n n = 0;\n while (n < stringl) {\n c1 = string.charCodeAt(n);\n enc = null;\n if (c1 < 128) {\n end++;\n } else if (c1 > 127 && c1 < 2048) {\n enc = String.fromCharCode((c1 >> 6) | 192, (c1 & 63) | 128);\n } else {\n enc = String.fromCharCode((c1 >> 12) | 224, ((c1 >> 6) & 63) | 128, (c1 & 63) | 128);\n }\n if (enc !== null) {\n if (end > start) {\n utftext += string.slice(start, end);\n }\n utftext += enc;\n start = n + 1;\n end = start;\n }\n n++;\n }\n if (end > start) {\n utftext += string.slice(start, stringl);\n }\n return utftext;\n};\n","const api = require('../api');\nconst v1_adapters = require('../utils').v1_adapters;\n\nv1_adapters(exports, api, {\n ping: 0,\n usage: 0,\n resource_types: 0,\n resources: 0,\n resources_by_tag: 1,\n resources_by_context: 2,\n resources_by_moderation: 2,\n resources_by_ids: 1,\n resource: 1,\n restore: 1,\n update: 1,\n delete_resources: 1,\n delete_resources_by_prefix: 1,\n delete_resources_by_tag: 1,\n delete_all_resources: 0,\n delete_derived_resources: 1,\n tags: 0,\n transformations: 0,\n transformation: 1,\n delete_transformation: 1,\n update_transformation: 2,\n create_transformation: 2,\n upload_presets: 0,\n upload_preset: 1,\n delete_upload_preset: 1,\n update_upload_preset: 1,\n create_upload_preset: 0,\n root_folders: 0,\n sub_folders: 1,\n delete_folder: 1,\n create_folder: 1,\n upload_mappings: 0,\n upload_mapping: 1,\n delete_upload_mapping: 1,\n update_upload_mapping: 1,\n create_upload_mapping: 1,\n list_streaming_profiles: 0,\n get_streaming_profile: 1,\n delete_streaming_profile: 1,\n update_streaming_profile: 1,\n create_streaming_profile: 1,\n publish_by_ids: 1,\n publish_by_tag: 1,\n publish_by_prefix: 1,\n update_resources_access_mode_by_prefix: 2,\n update_resources_access_mode_by_tag: 2,\n update_resources_access_mode_by_ids: 2,\n search: 1,\n delete_derived_by_transformation: 2,\n add_metadata_field: 1,\n list_metadata_fields: 1,\n delete_metadata_field: 1,\n metadata_field_by_field_id: 1,\n update_metadata_field: 2,\n update_metadata_field_datasource: 2,\n delete_datasource_entries: 2,\n restore_metadata_field_datasource: 2,\n order_metadata_field_datasource: 3\n});\n","const v1 = require('../cloudinary');\nconst api = require('./api');\nconst uploader = require('./uploader');\nconst search = require('./search');\n\nconst v2 = {\n ...v1,\n api,\n uploader,\n search\n};\nmodule.exports = v2;\n","const api = require('./api');\nconst {isEmpty, isNumber} = require('../utils');\n\nconst Search = class Search {\n constructor() {\n this.query_hash = {\n sort_by: [],\n aggregate: [],\n with_field: []\n };\n }\n\n static instance() {\n return new Search();\n }\n\n static expression(value) {\n return this.instance().expression(value);\n }\n\n static max_results(value) {\n return this.instance().max_results(value);\n }\n\n static next_cursor(value) {\n return this.instance().next_cursor(value);\n }\n\n static aggregate(value) {\n return this.instance().aggregate(value);\n }\n\n static with_field(value) {\n return this.instance().with_field(value);\n }\n\n static sort_by(field_name, dir = 'asc') {\n return this.instance().sort_by(field_name, dir);\n }\n\n expression(value) {\n this.query_hash.expression = value;\n return this;\n }\n\n max_results(value) {\n this.query_hash.max_results = value;\n return this;\n }\n\n next_cursor(value) {\n this.query_hash.next_cursor = value;\n return this;\n }\n\n aggregate(value) {\n const found = this.query_hash.aggregate.find(v => v === value);\n\n if (!found) {\n this.query_hash.aggregate.push(value);\n }\n\n return this;\n }\n\n with_field(value) {\n const found = this.query_hash.with_field.find(v => v === value);\n\n if (!found) {\n this.query_hash.with_field.push(value);\n }\n\n return this;\n }\n\n sort_by(field_name, dir = \"desc\") {\n let sort_bucket;\n sort_bucket = {};\n sort_bucket[field_name] = dir;\n\n // Check if this field name is already stored in the hash\n const previously_sorted_obj = this.query_hash.sort_by.find((sort_by) => sort_by[field_name]);\n\n // Since objects are references in Javascript, we can update the reference we found\n // For example,\n if (previously_sorted_obj) {\n previously_sorted_obj[field_name] = dir;\n } else {\n this.query_hash.sort_by.push(sort_bucket);\n }\n\n return this;\n }\n\n to_query() {\n Object.keys(this.query_hash).forEach((k) => {\n let v = this.query_hash[k];\n if (!isNumber(v) && isEmpty(v)) {\n delete this.query_hash[k];\n }\n });\n return this.query_hash;\n }\n\n execute(options, callback) {\n if (callback === null) {\n callback = options;\n }\n options = options || {};\n return api.search(this.to_query(), options, callback);\n }\n};\n\nmodule.exports = Search;\n","const uploader = require('../uploader');\nconst v1_adapters = require('../utils').v1_adapters;\n\nv1_adapters(exports, uploader, {\n unsigned_upload_stream: 1,\n upload_stream: 0,\n unsigned_upload: 2,\n upload: 1,\n upload_large_part: 0,\n upload_large: 1,\n upload_chunked: 1,\n upload_chunked_stream: 0,\n explicit: 1,\n destroy: 1,\n rename: 2,\n text: 1,\n generate_sprite: 1,\n multi: 1,\n explode: 1,\n add_tag: 2,\n remove_tag: 2,\n remove_all_tags: 1,\n add_context: 2,\n remove_all_context: 1,\n replace_tag: 2,\n create_archive: 0,\n create_zip: 0,\n update_metadata: 2\n});\n\nexports.direct_upload = uploader.direct_upload;\nexports.upload_tag_params = uploader.upload_tag_params;\nexports.upload_url = uploader.upload_url;\nexports.image_upload_tag = uploader.image_upload_tag;\nexports.unsigned_image_upload_tag = uploader.unsigned_image_upload_tag;\nexports.create_slideshow = uploader.create_slideshow;\nexports.download_generated_sprite = uploader.download_generated_sprite;\nexports.download_multi = uploader.download_multi;\n","require('../modules/es.symbol');\nrequire('../modules/es.symbol.async-iterator');\nrequire('../modules/es.symbol.description');\nrequire('../modules/es.symbol.has-instance');\nrequire('../modules/es.symbol.is-concat-spreadable');\nrequire('../modules/es.symbol.iterator');\nrequire('../modules/es.symbol.match');\nrequire('../modules/es.symbol.match-all');\nrequire('../modules/es.symbol.replace');\nrequire('../modules/es.symbol.search');\nrequire('../modules/es.symbol.species');\nrequire('../modules/es.symbol.split');\nrequire('../modules/es.symbol.to-primitive');\nrequire('../modules/es.symbol.to-string-tag');\nrequire('../modules/es.symbol.unscopables');\nrequire('../modules/es.object.assign');\nrequire('../modules/es.object.create');\nrequire('../modules/es.object.define-property');\nrequire('../modules/es.object.define-properties');\nrequire('../modules/es.object.entries');\nrequire('../modules/es.object.freeze');\nrequire('../modules/es.object.from-entries');\nrequire('../modules/es.object.get-own-property-descriptor');\nrequire('../modules/es.object.get-own-property-descriptors');\nrequire('../modules/es.object.get-own-property-names');\nrequire('../modules/es.object.get-prototype-of');\nrequire('../modules/es.object.is');\nrequire('../modules/es.object.is-extensible');\nrequire('../modules/es.object.is-frozen');\nrequire('../modules/es.object.is-sealed');\nrequire('../modules/es.object.keys');\nrequire('../modules/es.object.prevent-extensions');\nrequire('../modules/es.object.seal');\nrequire('../modules/es.object.set-prototype-of');\nrequire('../modules/es.object.values');\nrequire('../modules/es.object.to-string');\nrequire('../modules/es.object.define-getter');\nrequire('../modules/es.object.define-setter');\nrequire('../modules/es.object.lookup-getter');\nrequire('../modules/es.object.lookup-setter');\nrequire('../modules/es.function.bind');\nrequire('../modules/es.function.name');\nrequire('../modules/es.function.has-instance');\nrequire('../modules/es.global-this');\nrequire('../modules/es.array.from');\nrequire('../modules/es.array.is-array');\nrequire('../modules/es.array.of');\nrequire('../modules/es.array.concat');\nrequire('../modules/es.array.copy-within');\nrequire('../modules/es.array.every');\nrequire('../modules/es.array.fill');\nrequire('../modules/es.array.filter');\nrequire('../modules/es.array.find');\nrequire('../modules/es.array.find-index');\nrequire('../modules/es.array.flat');\nrequire('../modules/es.array.flat-map');\nrequire('../modules/es.array.for-each');\nrequire('../modules/es.array.includes');\nrequire('../modules/es.array.index-of');\nrequire('../modules/es.array.join');\nrequire('../modules/es.array.last-index-of');\nrequire('../modules/es.array.map');\nrequire('../modules/es.array.reduce');\nrequire('../modules/es.array.reduce-right');\nrequire('../modules/es.array.reverse');\nrequire('../modules/es.array.slice');\nrequire('../modules/es.array.some');\nrequire('../modules/es.array.sort');\nrequire('../modules/es.array.splice');\nrequire('../modules/es.array.species');\nrequire('../modules/es.array.unscopables.flat');\nrequire('../modules/es.array.unscopables.flat-map');\nrequire('../modules/es.array.iterator');\nrequire('../modules/es.string.from-code-point');\nrequire('../modules/es.string.raw');\nrequire('../modules/es.string.code-point-at');\nrequire('../modules/es.string.ends-with');\nrequire('../modules/es.string.includes');\nrequire('../modules/es.string.match');\nrequire('../modules/es.string.match-all');\nrequire('../modules/es.string.pad-end');\nrequire('../modules/es.string.pad-start');\nrequire('../modules/es.string.repeat');\nrequire('../modules/es.string.replace');\nrequire('../modules/es.string.search');\nrequire('../modules/es.string.split');\nrequire('../modules/es.string.starts-with');\nrequire('../modules/es.string.trim');\nrequire('../modules/es.string.trim-start');\nrequire('../modules/es.string.trim-end');\nrequire('../modules/es.string.iterator');\nrequire('../modules/es.string.anchor');\nrequire('../modules/es.string.big');\nrequire('../modules/es.string.blink');\nrequire('../modules/es.string.bold');\nrequire('../modules/es.string.fixed');\nrequire('../modules/es.string.fontcolor');\nrequire('../modules/es.string.fontsize');\nrequire('../modules/es.string.italics');\nrequire('../modules/es.string.link');\nrequire('../modules/es.string.small');\nrequire('../modules/es.string.strike');\nrequire('../modules/es.string.sub');\nrequire('../modules/es.string.sup');\nrequire('../modules/es.regexp.constructor');\nrequire('../modules/es.regexp.exec');\nrequire('../modules/es.regexp.flags');\nrequire('../modules/es.regexp.sticky');\nrequire('../modules/es.regexp.test');\nrequire('../modules/es.regexp.to-string');\nrequire('../modules/es.parse-int');\nrequire('../modules/es.parse-float');\nrequire('../modules/es.number.constructor');\nrequire('../modules/es.number.epsilon');\nrequire('../modules/es.number.is-finite');\nrequire('../modules/es.number.is-integer');\nrequire('../modules/es.number.is-nan');\nrequire('../modules/es.number.is-safe-integer');\nrequire('../modules/es.number.max-safe-integer');\nrequire('../modules/es.number.min-safe-integer');\nrequire('../modules/es.number.parse-float');\nrequire('../modules/es.number.parse-int');\nrequire('../modules/es.number.to-fixed');\nrequire('../modules/es.number.to-precision');\nrequire('../modules/es.math.acosh');\nrequire('../modules/es.math.asinh');\nrequire('../modules/es.math.atanh');\nrequire('../modules/es.math.cbrt');\nrequire('../modules/es.math.clz32');\nrequire('../modules/es.math.cosh');\nrequire('../modules/es.math.expm1');\nrequire('../modules/es.math.fround');\nrequire('../modules/es.math.hypot');\nrequire('../modules/es.math.imul');\nrequire('../modules/es.math.log10');\nrequire('../modules/es.math.log1p');\nrequire('../modules/es.math.log2');\nrequire('../modules/es.math.sign');\nrequire('../modules/es.math.sinh');\nrequire('../modules/es.math.tanh');\nrequire('../modules/es.math.to-string-tag');\nrequire('../modules/es.math.trunc');\nrequire('../modules/es.date.now');\nrequire('../modules/es.date.to-json');\nrequire('../modules/es.date.to-iso-string');\nrequire('../modules/es.date.to-string');\nrequire('../modules/es.date.to-primitive');\nrequire('../modules/es.json.stringify');\nrequire('../modules/es.json.to-string-tag');\nrequire('../modules/es.promise');\nrequire('../modules/es.promise.all-settled');\nrequire('../modules/es.promise.finally');\nrequire('../modules/es.map');\nrequire('../modules/es.set');\nrequire('../modules/es.weak-map');\nrequire('../modules/es.weak-set');\nrequire('../modules/es.array-buffer.constructor');\nrequire('../modules/es.array-buffer.is-view');\nrequire('../modules/es.array-buffer.slice');\nrequire('../modules/es.data-view');\nrequire('../modules/es.typed-array.int8-array');\nrequire('../modules/es.typed-array.uint8-array');\nrequire('../modules/es.typed-array.uint8-clamped-array');\nrequire('../modules/es.typed-array.int16-array');\nrequire('../modules/es.typed-array.uint16-array');\nrequire('../modules/es.typed-array.int32-array');\nrequire('../modules/es.typed-array.uint32-array');\nrequire('../modules/es.typed-array.float32-array');\nrequire('../modules/es.typed-array.float64-array');\nrequire('../modules/es.typed-array.from');\nrequire('../modules/es.typed-array.of');\nrequire('../modules/es.typed-array.copy-within');\nrequire('../modules/es.typed-array.every');\nrequire('../modules/es.typed-array.fill');\nrequire('../modules/es.typed-array.filter');\nrequire('../modules/es.typed-array.find');\nrequire('../modules/es.typed-array.find-index');\nrequire('../modules/es.typed-array.for-each');\nrequire('../modules/es.typed-array.includes');\nrequire('../modules/es.typed-array.index-of');\nrequire('../modules/es.typed-array.iterator');\nrequire('../modules/es.typed-array.join');\nrequire('../modules/es.typed-array.last-index-of');\nrequire('../modules/es.typed-array.map');\nrequire('../modules/es.typed-array.reduce');\nrequire('../modules/es.typed-array.reduce-right');\nrequire('../modules/es.typed-array.reverse');\nrequire('../modules/es.typed-array.set');\nrequire('../modules/es.typed-array.slice');\nrequire('../modules/es.typed-array.some');\nrequire('../modules/es.typed-array.sort');\nrequire('../modules/es.typed-array.subarray');\nrequire('../modules/es.typed-array.to-locale-string');\nrequire('../modules/es.typed-array.to-string');\nrequire('../modules/es.reflect.apply');\nrequire('../modules/es.reflect.construct');\nrequire('../modules/es.reflect.define-property');\nrequire('../modules/es.reflect.delete-property');\nrequire('../modules/es.reflect.get');\nrequire('../modules/es.reflect.get-own-property-descriptor');\nrequire('../modules/es.reflect.get-prototype-of');\nrequire('../modules/es.reflect.has');\nrequire('../modules/es.reflect.is-extensible');\nrequire('../modules/es.reflect.own-keys');\nrequire('../modules/es.reflect.prevent-extensions');\nrequire('../modules/es.reflect.set');\nrequire('../modules/es.reflect.set-prototype-of');\nvar path = require('../internals/path');\n\nmodule.exports = path;\n","require('./es');\nrequire('./proposals');\nrequire('./web');\nvar path = require('./internals/path');\n\nmodule.exports = path;\n","module.exports = function (it) {\n if (typeof it != 'function') {\n throw TypeError(String(it) + ' is not a function');\n } return it;\n};\n","var isObject = require('../internals/is-object');\n\nmodule.exports = function (it) {\n if (!isObject(it) && it !== null) {\n throw TypeError(\"Can't set \" + String(it) + ' as a prototype');\n } return it;\n};\n","var wellKnownSymbol = require('../internals/well-known-symbol');\nvar create = require('../internals/object-create');\nvar definePropertyModule = require('../internals/object-define-property');\n\nvar UNSCOPABLES = wellKnownSymbol('unscopables');\nvar ArrayPrototype = Array.prototype;\n\n// Array.prototype[@@unscopables]\n// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables\nif (ArrayPrototype[UNSCOPABLES] == undefined) {\n definePropertyModule.f(ArrayPrototype, UNSCOPABLES, {\n configurable: true,\n value: create(null)\n });\n}\n\n// add a key to Array.prototype[@@unscopables]\nmodule.exports = function (key) {\n ArrayPrototype[UNSCOPABLES][key] = true;\n};\n","'use strict';\nvar charAt = require('../internals/string-multibyte').charAt;\n\n// `AdvanceStringIndex` abstract operation\n// https://tc39.github.io/ecma262/#sec-advancestringindex\nmodule.exports = function (S, index, unicode) {\n return index + (unicode ? charAt(S, index).length : 1);\n};\n","module.exports = function (it, Constructor, name) {\n if (!(it instanceof Constructor)) {\n throw TypeError('Incorrect ' + (name ? name + ' ' : '') + 'invocation');\n } return it;\n};\n","var isObject = require('../internals/is-object');\n\nmodule.exports = function (it) {\n if (!isObject(it)) {\n throw TypeError(String(it) + ' is not an object');\n } return it;\n};\n","module.exports = typeof ArrayBuffer !== 'undefined' && typeof DataView !== 'undefined';\n","'use strict';\nvar NATIVE_ARRAY_BUFFER = require('../internals/array-buffer-native');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar global = require('../internals/global');\nvar isObject = require('../internals/is-object');\nvar has = require('../internals/has');\nvar classof = require('../internals/classof');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar redefine = require('../internals/redefine');\nvar defineProperty = require('../internals/object-define-property').f;\nvar getPrototypeOf = require('../internals/object-get-prototype-of');\nvar setPrototypeOf = require('../internals/object-set-prototype-of');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar uid = require('../internals/uid');\n\nvar Int8Array = global.Int8Array;\nvar Int8ArrayPrototype = Int8Array && Int8Array.prototype;\nvar Uint8ClampedArray = global.Uint8ClampedArray;\nvar Uint8ClampedArrayPrototype = Uint8ClampedArray && Uint8ClampedArray.prototype;\nvar TypedArray = Int8Array && getPrototypeOf(Int8Array);\nvar TypedArrayPrototype = Int8ArrayPrototype && getPrototypeOf(Int8ArrayPrototype);\nvar ObjectPrototype = Object.prototype;\nvar isPrototypeOf = ObjectPrototype.isPrototypeOf;\n\nvar TO_STRING_TAG = wellKnownSymbol('toStringTag');\nvar TYPED_ARRAY_TAG = uid('TYPED_ARRAY_TAG');\n// Fixing native typed arrays in Opera Presto crashes the browser, see #595\nvar NATIVE_ARRAY_BUFFER_VIEWS = NATIVE_ARRAY_BUFFER && !!setPrototypeOf && classof(global.opera) !== 'Opera';\nvar TYPED_ARRAY_TAG_REQIRED = false;\nvar NAME;\n\nvar TypedArrayConstructorsList = {\n Int8Array: 1,\n Uint8Array: 1,\n Uint8ClampedArray: 1,\n Int16Array: 2,\n Uint16Array: 2,\n Int32Array: 4,\n Uint32Array: 4,\n Float32Array: 4,\n Float64Array: 8\n};\n\nvar isView = function isView(it) {\n var klass = classof(it);\n return klass === 'DataView' || has(TypedArrayConstructorsList, klass);\n};\n\nvar isTypedArray = function (it) {\n return isObject(it) && has(TypedArrayConstructorsList, classof(it));\n};\n\nvar aTypedArray = function (it) {\n if (isTypedArray(it)) return it;\n throw TypeError('Target is not a typed array');\n};\n\nvar aTypedArrayConstructor = function (C) {\n if (setPrototypeOf) {\n if (isPrototypeOf.call(TypedArray, C)) return C;\n } else for (var ARRAY in TypedArrayConstructorsList) if (has(TypedArrayConstructorsList, NAME)) {\n var TypedArrayConstructor = global[ARRAY];\n if (TypedArrayConstructor && (C === TypedArrayConstructor || isPrototypeOf.call(TypedArrayConstructor, C))) {\n return C;\n }\n } throw TypeError('Target is not a typed array constructor');\n};\n\nvar exportTypedArrayMethod = function (KEY, property, forced) {\n if (!DESCRIPTORS) return;\n if (forced) for (var ARRAY in TypedArrayConstructorsList) {\n var TypedArrayConstructor = global[ARRAY];\n if (TypedArrayConstructor && has(TypedArrayConstructor.prototype, KEY)) {\n delete TypedArrayConstructor.prototype[KEY];\n }\n }\n if (!TypedArrayPrototype[KEY] || forced) {\n redefine(TypedArrayPrototype, KEY, forced ? property\n : NATIVE_ARRAY_BUFFER_VIEWS && Int8ArrayPrototype[KEY] || property);\n }\n};\n\nvar exportTypedArrayStaticMethod = function (KEY, property, forced) {\n var ARRAY, TypedArrayConstructor;\n if (!DESCRIPTORS) return;\n if (setPrototypeOf) {\n if (forced) for (ARRAY in TypedArrayConstructorsList) {\n TypedArrayConstructor = global[ARRAY];\n if (TypedArrayConstructor && has(TypedArrayConstructor, KEY)) {\n delete TypedArrayConstructor[KEY];\n }\n }\n if (!TypedArray[KEY] || forced) {\n // V8 ~ Chrome 49-50 `%TypedArray%` methods are non-writable non-configurable\n try {\n return redefine(TypedArray, KEY, forced ? property : NATIVE_ARRAY_BUFFER_VIEWS && Int8Array[KEY] || property);\n } catch (error) { /* empty */ }\n } else return;\n }\n for (ARRAY in TypedArrayConstructorsList) {\n TypedArrayConstructor = global[ARRAY];\n if (TypedArrayConstructor && (!TypedArrayConstructor[KEY] || forced)) {\n redefine(TypedArrayConstructor, KEY, property);\n }\n }\n};\n\nfor (NAME in TypedArrayConstructorsList) {\n if (!global[NAME]) NATIVE_ARRAY_BUFFER_VIEWS = false;\n}\n\n// WebKit bug - typed arrays constructors prototype is Object.prototype\nif (!NATIVE_ARRAY_BUFFER_VIEWS || typeof TypedArray != 'function' || TypedArray === Function.prototype) {\n // eslint-disable-next-line no-shadow\n TypedArray = function TypedArray() {\n throw TypeError('Incorrect invocation');\n };\n if (NATIVE_ARRAY_BUFFER_VIEWS) for (NAME in TypedArrayConstructorsList) {\n if (global[NAME]) setPrototypeOf(global[NAME], TypedArray);\n }\n}\n\nif (!NATIVE_ARRAY_BUFFER_VIEWS || !TypedArrayPrototype || TypedArrayPrototype === ObjectPrototype) {\n TypedArrayPrototype = TypedArray.prototype;\n if (NATIVE_ARRAY_BUFFER_VIEWS) for (NAME in TypedArrayConstructorsList) {\n if (global[NAME]) setPrototypeOf(global[NAME].prototype, TypedArrayPrototype);\n }\n}\n\n// WebKit bug - one more object in Uint8ClampedArray prototype chain\nif (NATIVE_ARRAY_BUFFER_VIEWS && getPrototypeOf(Uint8ClampedArrayPrototype) !== TypedArrayPrototype) {\n setPrototypeOf(Uint8ClampedArrayPrototype, TypedArrayPrototype);\n}\n\nif (DESCRIPTORS && !has(TypedArrayPrototype, TO_STRING_TAG)) {\n TYPED_ARRAY_TAG_REQIRED = true;\n defineProperty(TypedArrayPrototype, TO_STRING_TAG, { get: function () {\n return isObject(this) ? this[TYPED_ARRAY_TAG] : undefined;\n } });\n for (NAME in TypedArrayConstructorsList) if (global[NAME]) {\n createNonEnumerableProperty(global[NAME], TYPED_ARRAY_TAG, NAME);\n }\n}\n\nmodule.exports = {\n NATIVE_ARRAY_BUFFER_VIEWS: NATIVE_ARRAY_BUFFER_VIEWS,\n TYPED_ARRAY_TAG: TYPED_ARRAY_TAG_REQIRED && TYPED_ARRAY_TAG,\n aTypedArray: aTypedArray,\n aTypedArrayConstructor: aTypedArrayConstructor,\n exportTypedArrayMethod: exportTypedArrayMethod,\n exportTypedArrayStaticMethod: exportTypedArrayStaticMethod,\n isView: isView,\n isTypedArray: isTypedArray,\n TypedArray: TypedArray,\n TypedArrayPrototype: TypedArrayPrototype\n};\n","'use strict';\nvar global = require('../internals/global');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar NATIVE_ARRAY_BUFFER = require('../internals/array-buffer-native');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar redefineAll = require('../internals/redefine-all');\nvar fails = require('../internals/fails');\nvar anInstance = require('../internals/an-instance');\nvar toInteger = require('../internals/to-integer');\nvar toLength = require('../internals/to-length');\nvar toIndex = require('../internals/to-index');\nvar IEEE754 = require('../internals/ieee754');\nvar getPrototypeOf = require('../internals/object-get-prototype-of');\nvar setPrototypeOf = require('../internals/object-set-prototype-of');\nvar getOwnPropertyNames = require('../internals/object-get-own-property-names').f;\nvar defineProperty = require('../internals/object-define-property').f;\nvar arrayFill = require('../internals/array-fill');\nvar setToStringTag = require('../internals/set-to-string-tag');\nvar InternalStateModule = require('../internals/internal-state');\n\nvar getInternalState = InternalStateModule.get;\nvar setInternalState = InternalStateModule.set;\nvar ARRAY_BUFFER = 'ArrayBuffer';\nvar DATA_VIEW = 'DataView';\nvar PROTOTYPE = 'prototype';\nvar WRONG_LENGTH = 'Wrong length';\nvar WRONG_INDEX = 'Wrong index';\nvar NativeArrayBuffer = global[ARRAY_BUFFER];\nvar $ArrayBuffer = NativeArrayBuffer;\nvar $DataView = global[DATA_VIEW];\nvar $DataViewPrototype = $DataView && $DataView[PROTOTYPE];\nvar ObjectPrototype = Object.prototype;\nvar RangeError = global.RangeError;\n\nvar packIEEE754 = IEEE754.pack;\nvar unpackIEEE754 = IEEE754.unpack;\n\nvar packInt8 = function (number) {\n return [number & 0xFF];\n};\n\nvar packInt16 = function (number) {\n return [number & 0xFF, number >> 8 & 0xFF];\n};\n\nvar packInt32 = function (number) {\n return [number & 0xFF, number >> 8 & 0xFF, number >> 16 & 0xFF, number >> 24 & 0xFF];\n};\n\nvar unpackInt32 = function (buffer) {\n return buffer[3] << 24 | buffer[2] << 16 | buffer[1] << 8 | buffer[0];\n};\n\nvar packFloat32 = function (number) {\n return packIEEE754(number, 23, 4);\n};\n\nvar packFloat64 = function (number) {\n return packIEEE754(number, 52, 8);\n};\n\nvar addGetter = function (Constructor, key) {\n defineProperty(Constructor[PROTOTYPE], key, { get: function () { return getInternalState(this)[key]; } });\n};\n\nvar get = function (view, count, index, isLittleEndian) {\n var intIndex = toIndex(index);\n var store = getInternalState(view);\n if (intIndex + count > store.byteLength) throw RangeError(WRONG_INDEX);\n var bytes = getInternalState(store.buffer).bytes;\n var start = intIndex + store.byteOffset;\n var pack = bytes.slice(start, start + count);\n return isLittleEndian ? pack : pack.reverse();\n};\n\nvar set = function (view, count, index, conversion, value, isLittleEndian) {\n var intIndex = toIndex(index);\n var store = getInternalState(view);\n if (intIndex + count > store.byteLength) throw RangeError(WRONG_INDEX);\n var bytes = getInternalState(store.buffer).bytes;\n var start = intIndex + store.byteOffset;\n var pack = conversion(+value);\n for (var i = 0; i < count; i++) bytes[start + i] = pack[isLittleEndian ? i : count - i - 1];\n};\n\nif (!NATIVE_ARRAY_BUFFER) {\n $ArrayBuffer = function ArrayBuffer(length) {\n anInstance(this, $ArrayBuffer, ARRAY_BUFFER);\n var byteLength = toIndex(length);\n setInternalState(this, {\n bytes: arrayFill.call(new Array(byteLength), 0),\n byteLength: byteLength\n });\n if (!DESCRIPTORS) this.byteLength = byteLength;\n };\n\n $DataView = function DataView(buffer, byteOffset, byteLength) {\n anInstance(this, $DataView, DATA_VIEW);\n anInstance(buffer, $ArrayBuffer, DATA_VIEW);\n var bufferLength = getInternalState(buffer).byteLength;\n var offset = toInteger(byteOffset);\n if (offset < 0 || offset > bufferLength) throw RangeError('Wrong offset');\n byteLength = byteLength === undefined ? bufferLength - offset : toLength(byteLength);\n if (offset + byteLength > bufferLength) throw RangeError(WRONG_LENGTH);\n setInternalState(this, {\n buffer: buffer,\n byteLength: byteLength,\n byteOffset: offset\n });\n if (!DESCRIPTORS) {\n this.buffer = buffer;\n this.byteLength = byteLength;\n this.byteOffset = offset;\n }\n };\n\n if (DESCRIPTORS) {\n addGetter($ArrayBuffer, 'byteLength');\n addGetter($DataView, 'buffer');\n addGetter($DataView, 'byteLength');\n addGetter($DataView, 'byteOffset');\n }\n\n redefineAll($DataView[PROTOTYPE], {\n getInt8: function getInt8(byteOffset) {\n return get(this, 1, byteOffset)[0] << 24 >> 24;\n },\n getUint8: function getUint8(byteOffset) {\n return get(this, 1, byteOffset)[0];\n },\n getInt16: function getInt16(byteOffset /* , littleEndian */) {\n var bytes = get(this, 2, byteOffset, arguments.length > 1 ? arguments[1] : undefined);\n return (bytes[1] << 8 | bytes[0]) << 16 >> 16;\n },\n getUint16: function getUint16(byteOffset /* , littleEndian */) {\n var bytes = get(this, 2, byteOffset, arguments.length > 1 ? arguments[1] : undefined);\n return bytes[1] << 8 | bytes[0];\n },\n getInt32: function getInt32(byteOffset /* , littleEndian */) {\n return unpackInt32(get(this, 4, byteOffset, arguments.length > 1 ? arguments[1] : undefined));\n },\n getUint32: function getUint32(byteOffset /* , littleEndian */) {\n return unpackInt32(get(this, 4, byteOffset, arguments.length > 1 ? arguments[1] : undefined)) >>> 0;\n },\n getFloat32: function getFloat32(byteOffset /* , littleEndian */) {\n return unpackIEEE754(get(this, 4, byteOffset, arguments.length > 1 ? arguments[1] : undefined), 23);\n },\n getFloat64: function getFloat64(byteOffset /* , littleEndian */) {\n return unpackIEEE754(get(this, 8, byteOffset, arguments.length > 1 ? arguments[1] : undefined), 52);\n },\n setInt8: function setInt8(byteOffset, value) {\n set(this, 1, byteOffset, packInt8, value);\n },\n setUint8: function setUint8(byteOffset, value) {\n set(this, 1, byteOffset, packInt8, value);\n },\n setInt16: function setInt16(byteOffset, value /* , littleEndian */) {\n set(this, 2, byteOffset, packInt16, value, arguments.length > 2 ? arguments[2] : undefined);\n },\n setUint16: function setUint16(byteOffset, value /* , littleEndian */) {\n set(this, 2, byteOffset, packInt16, value, arguments.length > 2 ? arguments[2] : undefined);\n },\n setInt32: function setInt32(byteOffset, value /* , littleEndian */) {\n set(this, 4, byteOffset, packInt32, value, arguments.length > 2 ? arguments[2] : undefined);\n },\n setUint32: function setUint32(byteOffset, value /* , littleEndian */) {\n set(this, 4, byteOffset, packInt32, value, arguments.length > 2 ? arguments[2] : undefined);\n },\n setFloat32: function setFloat32(byteOffset, value /* , littleEndian */) {\n set(this, 4, byteOffset, packFloat32, value, arguments.length > 2 ? arguments[2] : undefined);\n },\n setFloat64: function setFloat64(byteOffset, value /* , littleEndian */) {\n set(this, 8, byteOffset, packFloat64, value, arguments.length > 2 ? arguments[2] : undefined);\n }\n });\n} else {\n if (!fails(function () {\n NativeArrayBuffer(1);\n }) || !fails(function () {\n new NativeArrayBuffer(-1); // eslint-disable-line no-new\n }) || fails(function () {\n new NativeArrayBuffer(); // eslint-disable-line no-new\n new NativeArrayBuffer(1.5); // eslint-disable-line no-new\n new NativeArrayBuffer(NaN); // eslint-disable-line no-new\n return NativeArrayBuffer.name != ARRAY_BUFFER;\n })) {\n $ArrayBuffer = function ArrayBuffer(length) {\n anInstance(this, $ArrayBuffer);\n return new NativeArrayBuffer(toIndex(length));\n };\n var ArrayBufferPrototype = $ArrayBuffer[PROTOTYPE] = NativeArrayBuffer[PROTOTYPE];\n for (var keys = getOwnPropertyNames(NativeArrayBuffer), j = 0, key; keys.length > j;) {\n if (!((key = keys[j++]) in $ArrayBuffer)) {\n createNonEnumerableProperty($ArrayBuffer, key, NativeArrayBuffer[key]);\n }\n }\n ArrayBufferPrototype.constructor = $ArrayBuffer;\n }\n\n // WebKit bug - the same parent prototype for typed arrays and data view\n if (setPrototypeOf && getPrototypeOf($DataViewPrototype) !== ObjectPrototype) {\n setPrototypeOf($DataViewPrototype, ObjectPrototype);\n }\n\n // iOS Safari 7.x bug\n var testView = new $DataView(new $ArrayBuffer(2));\n var nativeSetInt8 = $DataViewPrototype.setInt8;\n testView.setInt8(0, 2147483648);\n testView.setInt8(1, 2147483649);\n if (testView.getInt8(0) || !testView.getInt8(1)) redefineAll($DataViewPrototype, {\n setInt8: function setInt8(byteOffset, value) {\n nativeSetInt8.call(this, byteOffset, value << 24 >> 24);\n },\n setUint8: function setUint8(byteOffset, value) {\n nativeSetInt8.call(this, byteOffset, value << 24 >> 24);\n }\n }, { unsafe: true });\n}\n\nsetToStringTag($ArrayBuffer, ARRAY_BUFFER);\nsetToStringTag($DataView, DATA_VIEW);\n\nmodule.exports = {\n ArrayBuffer: $ArrayBuffer,\n DataView: $DataView\n};\n","'use strict';\nvar toObject = require('../internals/to-object');\nvar toAbsoluteIndex = require('../internals/to-absolute-index');\nvar toLength = require('../internals/to-length');\n\nvar min = Math.min;\n\n// `Array.prototype.copyWithin` method implementation\n// https://tc39.github.io/ecma262/#sec-array.prototype.copywithin\nmodule.exports = [].copyWithin || function copyWithin(target /* = 0 */, start /* = 0, end = @length */) {\n var O = toObject(this);\n var len = toLength(O.length);\n var to = toAbsoluteIndex(target, len);\n var from = toAbsoluteIndex(start, len);\n var end = arguments.length > 2 ? arguments[2] : undefined;\n var count = min((end === undefined ? len : toAbsoluteIndex(end, len)) - from, len - to);\n var inc = 1;\n if (from < to && to < from + count) {\n inc = -1;\n from += count - 1;\n to += count - 1;\n }\n while (count-- > 0) {\n if (from in O) O[to] = O[from];\n else delete O[to];\n to += inc;\n from += inc;\n } return O;\n};\n","'use strict';\nvar toObject = require('../internals/to-object');\nvar toAbsoluteIndex = require('../internals/to-absolute-index');\nvar toLength = require('../internals/to-length');\n\n// `Array.prototype.fill` method implementation\n// https://tc39.github.io/ecma262/#sec-array.prototype.fill\nmodule.exports = function fill(value /* , start = 0, end = @length */) {\n var O = toObject(this);\n var length = toLength(O.length);\n var argumentsLength = arguments.length;\n var index = toAbsoluteIndex(argumentsLength > 1 ? arguments[1] : undefined, length);\n var end = argumentsLength > 2 ? arguments[2] : undefined;\n var endPos = end === undefined ? length : toAbsoluteIndex(end, length);\n while (endPos > index) O[index++] = value;\n return O;\n};\n","'use strict';\nvar $forEach = require('../internals/array-iteration').forEach;\nvar arrayMethodIsStrict = require('../internals/array-method-is-strict');\nvar arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');\n\nvar STRICT_METHOD = arrayMethodIsStrict('forEach');\nvar USES_TO_LENGTH = arrayMethodUsesToLength('forEach');\n\n// `Array.prototype.forEach` method implementation\n// https://tc39.github.io/ecma262/#sec-array.prototype.foreach\nmodule.exports = (!STRICT_METHOD || !USES_TO_LENGTH) ? function forEach(callbackfn /* , thisArg */) {\n return $forEach(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);\n} : [].forEach;\n","'use strict';\nvar bind = require('../internals/function-bind-context');\nvar toObject = require('../internals/to-object');\nvar callWithSafeIterationClosing = require('../internals/call-with-safe-iteration-closing');\nvar isArrayIteratorMethod = require('../internals/is-array-iterator-method');\nvar toLength = require('../internals/to-length');\nvar createProperty = require('../internals/create-property');\nvar getIteratorMethod = require('../internals/get-iterator-method');\n\n// `Array.from` method implementation\n// https://tc39.github.io/ecma262/#sec-array.from\nmodule.exports = function from(arrayLike /* , mapfn = undefined, thisArg = undefined */) {\n var O = toObject(arrayLike);\n var C = typeof this == 'function' ? this : Array;\n var argumentsLength = arguments.length;\n var mapfn = argumentsLength > 1 ? arguments[1] : undefined;\n var mapping = mapfn !== undefined;\n var iteratorMethod = getIteratorMethod(O);\n var index = 0;\n var length, result, step, iterator, next, value;\n if (mapping) mapfn = bind(mapfn, argumentsLength > 2 ? arguments[2] : undefined, 2);\n // if the target is not iterable or it's an array with the default iterator - use a simple case\n if (iteratorMethod != undefined && !(C == Array && isArrayIteratorMethod(iteratorMethod))) {\n iterator = iteratorMethod.call(O);\n next = iterator.next;\n result = new C();\n for (;!(step = next.call(iterator)).done; index++) {\n value = mapping ? callWithSafeIterationClosing(iterator, mapfn, [step.value, index], true) : step.value;\n createProperty(result, index, value);\n }\n } else {\n length = toLength(O.length);\n result = new C(length);\n for (;length > index; index++) {\n value = mapping ? mapfn(O[index], index) : O[index];\n createProperty(result, index, value);\n }\n }\n result.length = index;\n return result;\n};\n","var toIndexedObject = require('../internals/to-indexed-object');\nvar toLength = require('../internals/to-length');\nvar toAbsoluteIndex = require('../internals/to-absolute-index');\n\n// `Array.prototype.{ indexOf, includes }` methods implementation\nvar createMethod = function (IS_INCLUDES) {\n return function ($this, el, fromIndex) {\n var O = toIndexedObject($this);\n var length = toLength(O.length);\n var index = toAbsoluteIndex(fromIndex, length);\n var value;\n // Array#includes uses SameValueZero equality algorithm\n // eslint-disable-next-line no-self-compare\n if (IS_INCLUDES && el != el) while (length > index) {\n value = O[index++];\n // eslint-disable-next-line no-self-compare\n if (value != value) return true;\n // Array#indexOf ignores holes, Array#includes - not\n } else for (;length > index; index++) {\n if ((IS_INCLUDES || index in O) && O[index] === el) return IS_INCLUDES || index || 0;\n } return !IS_INCLUDES && -1;\n };\n};\n\nmodule.exports = {\n // `Array.prototype.includes` method\n // https://tc39.github.io/ecma262/#sec-array.prototype.includes\n includes: createMethod(true),\n // `Array.prototype.indexOf` method\n // https://tc39.github.io/ecma262/#sec-array.prototype.indexof\n indexOf: createMethod(false)\n};\n","var bind = require('../internals/function-bind-context');\nvar IndexedObject = require('../internals/indexed-object');\nvar toObject = require('../internals/to-object');\nvar toLength = require('../internals/to-length');\nvar arraySpeciesCreate = require('../internals/array-species-create');\n\nvar push = [].push;\n\n// `Array.prototype.{ forEach, map, filter, some, every, find, findIndex }` methods implementation\nvar createMethod = function (TYPE) {\n var IS_MAP = TYPE == 1;\n var IS_FILTER = TYPE == 2;\n var IS_SOME = TYPE == 3;\n var IS_EVERY = TYPE == 4;\n var IS_FIND_INDEX = TYPE == 6;\n var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;\n return function ($this, callbackfn, that, specificCreate) {\n var O = toObject($this);\n var self = IndexedObject(O);\n var boundFunction = bind(callbackfn, that, 3);\n var length = toLength(self.length);\n var index = 0;\n var create = specificCreate || arraySpeciesCreate;\n var target = IS_MAP ? create($this, length) : IS_FILTER ? create($this, 0) : undefined;\n var value, result;\n for (;length > index; index++) if (NO_HOLES || index in self) {\n value = self[index];\n result = boundFunction(value, index, O);\n if (TYPE) {\n if (IS_MAP) target[index] = result; // map\n else if (result) switch (TYPE) {\n case 3: return true; // some\n case 5: return value; // find\n case 6: return index; // findIndex\n case 2: push.call(target, value); // filter\n } else if (IS_EVERY) return false; // every\n }\n }\n return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : target;\n };\n};\n\nmodule.exports = {\n // `Array.prototype.forEach` method\n // https://tc39.github.io/ecma262/#sec-array.prototype.foreach\n forEach: createMethod(0),\n // `Array.prototype.map` method\n // https://tc39.github.io/ecma262/#sec-array.prototype.map\n map: createMethod(1),\n // `Array.prototype.filter` method\n // https://tc39.github.io/ecma262/#sec-array.prototype.filter\n filter: createMethod(2),\n // `Array.prototype.some` method\n // https://tc39.github.io/ecma262/#sec-array.prototype.some\n some: createMethod(3),\n // `Array.prototype.every` method\n // https://tc39.github.io/ecma262/#sec-array.prototype.every\n every: createMethod(4),\n // `Array.prototype.find` method\n // https://tc39.github.io/ecma262/#sec-array.prototype.find\n find: createMethod(5),\n // `Array.prototype.findIndex` method\n // https://tc39.github.io/ecma262/#sec-array.prototype.findIndex\n findIndex: createMethod(6)\n};\n","'use strict';\nvar toIndexedObject = require('../internals/to-indexed-object');\nvar toInteger = require('../internals/to-integer');\nvar toLength = require('../internals/to-length');\nvar arrayMethodIsStrict = require('../internals/array-method-is-strict');\nvar arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');\n\nvar min = Math.min;\nvar nativeLastIndexOf = [].lastIndexOf;\nvar NEGATIVE_ZERO = !!nativeLastIndexOf && 1 / [1].lastIndexOf(1, -0) < 0;\nvar STRICT_METHOD = arrayMethodIsStrict('lastIndexOf');\n// For preventing possible almost infinite loop in non-standard implementations, test the forward version of the method\nvar USES_TO_LENGTH = arrayMethodUsesToLength('indexOf', { ACCESSORS: true, 1: 0 });\nvar FORCED = NEGATIVE_ZERO || !STRICT_METHOD || !USES_TO_LENGTH;\n\n// `Array.prototype.lastIndexOf` method implementation\n// https://tc39.github.io/ecma262/#sec-array.prototype.lastindexof\nmodule.exports = FORCED ? function lastIndexOf(searchElement /* , fromIndex = @[*-1] */) {\n // convert -0 to +0\n if (NEGATIVE_ZERO) return nativeLastIndexOf.apply(this, arguments) || 0;\n var O = toIndexedObject(this);\n var length = toLength(O.length);\n var index = length - 1;\n if (arguments.length > 1) index = min(index, toInteger(arguments[1]));\n if (index < 0) index = length + index;\n for (;index >= 0; index--) if (index in O && O[index] === searchElement) return index || 0;\n return -1;\n} : nativeLastIndexOf;\n","var fails = require('../internals/fails');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar V8_VERSION = require('../internals/engine-v8-version');\n\nvar SPECIES = wellKnownSymbol('species');\n\nmodule.exports = function (METHOD_NAME) {\n // We can't use this feature detection in V8 since it causes\n // deoptimization and serious performance degradation\n // https://github.com/zloirock/core-js/issues/677\n return V8_VERSION >= 51 || !fails(function () {\n var array = [];\n var constructor = array.constructor = {};\n constructor[SPECIES] = function () {\n return { foo: 1 };\n };\n return array[METHOD_NAME](Boolean).foo !== 1;\n });\n};\n","'use strict';\nvar fails = require('../internals/fails');\n\nmodule.exports = function (METHOD_NAME, argument) {\n var method = [][METHOD_NAME];\n return !!method && fails(function () {\n // eslint-disable-next-line no-useless-call,no-throw-literal\n method.call(null, argument || function () { throw 1; }, 1);\n });\n};\n","var DESCRIPTORS = require('../internals/descriptors');\nvar fails = require('../internals/fails');\nvar has = require('../internals/has');\n\nvar defineProperty = Object.defineProperty;\nvar cache = {};\n\nvar thrower = function (it) { throw it; };\n\nmodule.exports = function (METHOD_NAME, options) {\n if (has(cache, METHOD_NAME)) return cache[METHOD_NAME];\n if (!options) options = {};\n var method = [][METHOD_NAME];\n var ACCESSORS = has(options, 'ACCESSORS') ? options.ACCESSORS : false;\n var argument0 = has(options, 0) ? options[0] : thrower;\n var argument1 = has(options, 1) ? options[1] : undefined;\n\n return cache[METHOD_NAME] = !!method && !fails(function () {\n if (ACCESSORS && !DESCRIPTORS) return true;\n var O = { length: -1 };\n\n if (ACCESSORS) defineProperty(O, 1, { enumerable: true, get: thrower });\n else O[1] = 1;\n\n method.call(O, argument0, argument1);\n });\n};\n","var aFunction = require('../internals/a-function');\nvar toObject = require('../internals/to-object');\nvar IndexedObject = require('../internals/indexed-object');\nvar toLength = require('../internals/to-length');\n\n// `Array.prototype.{ reduce, reduceRight }` methods implementation\nvar createMethod = function (IS_RIGHT) {\n return function (that, callbackfn, argumentsLength, memo) {\n aFunction(callbackfn);\n var O = toObject(that);\n var self = IndexedObject(O);\n var length = toLength(O.length);\n var index = IS_RIGHT ? length - 1 : 0;\n var i = IS_RIGHT ? -1 : 1;\n if (argumentsLength < 2) while (true) {\n if (index in self) {\n memo = self[index];\n index += i;\n break;\n }\n index += i;\n if (IS_RIGHT ? index < 0 : length <= index) {\n throw TypeError('Reduce of empty array with no initial value');\n }\n }\n for (;IS_RIGHT ? index >= 0 : length > index; index += i) if (index in self) {\n memo = callbackfn(memo, self[index], index, O);\n }\n return memo;\n };\n};\n\nmodule.exports = {\n // `Array.prototype.reduce` method\n // https://tc39.github.io/ecma262/#sec-array.prototype.reduce\n left: createMethod(false),\n // `Array.prototype.reduceRight` method\n // https://tc39.github.io/ecma262/#sec-array.prototype.reduceright\n right: createMethod(true)\n};\n","var isObject = require('../internals/is-object');\nvar isArray = require('../internals/is-array');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar SPECIES = wellKnownSymbol('species');\n\n// `ArraySpeciesCreate` abstract operation\n// https://tc39.github.io/ecma262/#sec-arrayspeciescreate\nmodule.exports = function (originalArray, length) {\n var C;\n if (isArray(originalArray)) {\n C = originalArray.constructor;\n // cross-realm fallback\n if (typeof C == 'function' && (C === Array || isArray(C.prototype))) C = undefined;\n else if (isObject(C)) {\n C = C[SPECIES];\n if (C === null) C = undefined;\n }\n } return new (C === undefined ? Array : C)(length === 0 ? 0 : length);\n};\n","'use strict';\nvar path = require('../internals/path');\nvar aFunction = require('../internals/a-function');\nvar anObject = require('../internals/an-object');\nvar create = require('../internals/object-create');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar redefineAll = require('../internals/redefine-all');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar InternalStateModule = require('../internals/internal-state');\nvar getBuiltIn = require('../internals/get-built-in');\n\nvar Promise = getBuiltIn('Promise');\n\nvar setInternalState = InternalStateModule.set;\nvar getInternalState = InternalStateModule.get;\n\nvar TO_STRING_TAG = wellKnownSymbol('toStringTag');\n\nvar $return = function (value) {\n var iterator = getInternalState(this).iterator;\n var $$return = iterator['return'];\n return $$return === undefined\n ? Promise.resolve({ done: true, value: value })\n : anObject($$return.call(iterator, value));\n};\n\nvar $throw = function (value) {\n var iterator = getInternalState(this).iterator;\n var $$throw = iterator['throw'];\n return $$throw === undefined\n ? Promise.reject(value)\n : $$throw.call(iterator, value);\n};\n\nmodule.exports = function (nextHandler, IS_ITERATOR) {\n var AsyncIteratorProxy = function AsyncIterator(state) {\n state.next = aFunction(state.iterator.next);\n state.done = false;\n setInternalState(this, state);\n };\n\n AsyncIteratorProxy.prototype = redefineAll(create(path.AsyncIterator.prototype), {\n next: function next(arg) {\n var state = getInternalState(this);\n if (state.done) return Promise.resolve({ done: true, value: undefined });\n try {\n return Promise.resolve(anObject(nextHandler.call(state, arg, Promise)));\n } catch (error) {\n return Promise.reject(error);\n }\n },\n 'return': $return,\n 'throw': $throw\n });\n\n if (!IS_ITERATOR) {\n createNonEnumerableProperty(AsyncIteratorProxy.prototype, TO_STRING_TAG, 'Generator');\n }\n\n return AsyncIteratorProxy;\n};\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar aFunction = require('../internals/a-function');\nvar anObject = require('../internals/an-object');\nvar getBuiltIn = require('../internals/get-built-in');\n\nvar Promise = getBuiltIn('Promise');\nvar push = [].push;\n\nvar createMethod = function (TYPE) {\n var IS_TO_ARRAY = TYPE == 0;\n var IS_FOR_EACH = TYPE == 1;\n var IS_EVERY = TYPE == 2;\n var IS_SOME = TYPE == 3;\n return function (iterator, fn) {\n anObject(iterator);\n var next = aFunction(iterator.next);\n var array = IS_TO_ARRAY ? [] : undefined;\n if (!IS_TO_ARRAY) aFunction(fn);\n\n return new Promise(function (resolve, reject) {\n var loop = function () {\n try {\n Promise.resolve(anObject(next.call(iterator))).then(function (step) {\n try {\n if (anObject(step).done) {\n resolve(IS_TO_ARRAY ? array : IS_SOME ? false : IS_EVERY || undefined);\n } else {\n var value = step.value;\n if (IS_TO_ARRAY) {\n push.call(array, value);\n loop();\n } else {\n Promise.resolve(fn(value)).then(function (result) {\n if (IS_FOR_EACH) {\n loop();\n } else if (IS_EVERY) {\n result ? loop() : resolve(false);\n } else {\n result ? resolve(IS_SOME || value) : loop();\n }\n }, reject);\n }\n }\n } catch (err) { reject(err); }\n }, reject);\n } catch (error) { reject(error); }\n };\n\n loop();\n });\n };\n};\n\nmodule.exports = {\n toArray: createMethod(0),\n forEach: createMethod(1),\n every: createMethod(2),\n some: createMethod(3),\n find: createMethod(4)\n};\n","var global = require('../internals/global');\nvar shared = require('../internals/shared-store');\nvar getPrototypeOf = require('../internals/object-get-prototype-of');\nvar has = require('../internals/has');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar IS_PURE = require('../internals/is-pure');\n\nvar USE_FUNCTION_CONSTRUCTOR = 'USE_FUNCTION_CONSTRUCTOR';\nvar ASYNC_ITERATOR = wellKnownSymbol('asyncIterator');\nvar AsyncIterator = global.AsyncIterator;\nvar PassedAsyncIteratorPrototype = shared.AsyncIteratorPrototype;\nvar AsyncIteratorPrototype, prototype;\n\nif (!IS_PURE) {\n if (PassedAsyncIteratorPrototype) {\n AsyncIteratorPrototype = PassedAsyncIteratorPrototype;\n } else if (typeof AsyncIterator == 'function') {\n AsyncIteratorPrototype = AsyncIterator.prototype;\n } else if (shared[USE_FUNCTION_CONSTRUCTOR] || global[USE_FUNCTION_CONSTRUCTOR]) {\n try {\n // eslint-disable-next-line no-new-func\n prototype = getPrototypeOf(getPrototypeOf(getPrototypeOf(Function('return async function*(){}()')())));\n if (getPrototypeOf(prototype) === Object.prototype) AsyncIteratorPrototype = prototype;\n } catch (error) { /* empty */ }\n }\n}\n\nif (!AsyncIteratorPrototype) AsyncIteratorPrototype = {};\n\nif (!has(AsyncIteratorPrototype, ASYNC_ITERATOR)) {\n createNonEnumerableProperty(AsyncIteratorPrototype, ASYNC_ITERATOR, function () {\n return this;\n });\n}\n\nmodule.exports = AsyncIteratorPrototype;\n","var anObject = require('../internals/an-object');\n\n// call something on iterator step with safe closing on error\nmodule.exports = function (iterator, fn, value, ENTRIES) {\n try {\n return ENTRIES ? fn(anObject(value)[0], value[1]) : fn(value);\n // 7.4.6 IteratorClose(iterator, completion)\n } catch (error) {\n var returnMethod = iterator['return'];\n if (returnMethod !== undefined) anObject(returnMethod.call(iterator));\n throw error;\n }\n};\n","var wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar ITERATOR = wellKnownSymbol('iterator');\nvar SAFE_CLOSING = false;\n\ntry {\n var called = 0;\n var iteratorWithReturn = {\n next: function () {\n return { done: !!called++ };\n },\n 'return': function () {\n SAFE_CLOSING = true;\n }\n };\n iteratorWithReturn[ITERATOR] = function () {\n return this;\n };\n // eslint-disable-next-line no-throw-literal\n Array.from(iteratorWithReturn, function () { throw 2; });\n} catch (error) { /* empty */ }\n\nmodule.exports = function (exec, SKIP_CLOSING) {\n if (!SKIP_CLOSING && !SAFE_CLOSING) return false;\n var ITERATION_SUPPORT = false;\n try {\n var object = {};\n object[ITERATOR] = function () {\n return {\n next: function () {\n return { done: ITERATION_SUPPORT = true };\n }\n };\n };\n exec(object);\n } catch (error) { /* empty */ }\n return ITERATION_SUPPORT;\n};\n","var toString = {}.toString;\n\nmodule.exports = function (it) {\n return toString.call(it).slice(8, -1);\n};\n","var TO_STRING_TAG_SUPPORT = require('../internals/to-string-tag-support');\nvar classofRaw = require('../internals/classof-raw');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar TO_STRING_TAG = wellKnownSymbol('toStringTag');\n// ES3 wrong here\nvar CORRECT_ARGUMENTS = classofRaw(function () { return arguments; }()) == 'Arguments';\n\n// fallback for IE11 Script Access Denied error\nvar tryGet = function (it, key) {\n try {\n return it[key];\n } catch (error) { /* empty */ }\n};\n\n// getting tag from ES6+ `Object.prototype.toString`\nmodule.exports = TO_STRING_TAG_SUPPORT ? classofRaw : function (it) {\n var O, tag, result;\n return it === undefined ? 'Undefined' : it === null ? 'Null'\n // @@toStringTag case\n : typeof (tag = tryGet(O = Object(it), TO_STRING_TAG)) == 'string' ? tag\n // builtinTag case\n : CORRECT_ARGUMENTS ? classofRaw(O)\n // ES3 arguments fallback\n : (result = classofRaw(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : result;\n};\n","'use strict';\nvar anObject = require('../internals/an-object');\nvar aFunction = require('../internals/a-function');\n\n// https://github.com/tc39/collection-methods\nmodule.exports = function (/* ...elements */) {\n var set = anObject(this);\n var adder = aFunction(set.add);\n for (var k = 0, len = arguments.length; k < len; k++) {\n adder.call(set, arguments[k]);\n }\n return set;\n};\n","'use strict';\nvar anObject = require('../internals/an-object');\nvar aFunction = require('../internals/a-function');\n\n// https://github.com/tc39/collection-methods\nmodule.exports = function (/* ...elements */) {\n var collection = anObject(this);\n var remover = aFunction(collection['delete']);\n var allDeleted = true;\n var wasDeleted;\n for (var k = 0, len = arguments.length; k < len; k++) {\n wasDeleted = remover.call(collection, arguments[k]);\n allDeleted = allDeleted && wasDeleted;\n }\n return !!allDeleted;\n};\n","'use strict';\n// https://tc39.github.io/proposal-setmap-offrom/\nvar aFunction = require('../internals/a-function');\nvar bind = require('../internals/function-bind-context');\nvar iterate = require('../internals/iterate');\n\nmodule.exports = function from(source /* , mapFn, thisArg */) {\n var length = arguments.length;\n var mapFn = length > 1 ? arguments[1] : undefined;\n var mapping, A, n, boundFunction;\n aFunction(this);\n mapping = mapFn !== undefined;\n if (mapping) aFunction(mapFn);\n if (source == undefined) return new this();\n A = [];\n if (mapping) {\n n = 0;\n boundFunction = bind(mapFn, length > 2 ? arguments[2] : undefined, 2);\n iterate(source, function (nextItem) {\n A.push(boundFunction(nextItem, n++));\n });\n } else {\n iterate(source, A.push, A);\n }\n return new this(A);\n};\n","'use strict';\n// https://tc39.github.io/proposal-setmap-offrom/\nmodule.exports = function of() {\n var length = arguments.length;\n var A = new Array(length);\n while (length--) A[length] = arguments[length];\n return new this(A);\n};\n","'use strict';\nvar defineProperty = require('../internals/object-define-property').f;\nvar create = require('../internals/object-create');\nvar redefineAll = require('../internals/redefine-all');\nvar bind = require('../internals/function-bind-context');\nvar anInstance = require('../internals/an-instance');\nvar iterate = require('../internals/iterate');\nvar defineIterator = require('../internals/define-iterator');\nvar setSpecies = require('../internals/set-species');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar fastKey = require('../internals/internal-metadata').fastKey;\nvar InternalStateModule = require('../internals/internal-state');\n\nvar setInternalState = InternalStateModule.set;\nvar internalStateGetterFor = InternalStateModule.getterFor;\n\nmodule.exports = {\n getConstructor: function (wrapper, CONSTRUCTOR_NAME, IS_MAP, ADDER) {\n var C = wrapper(function (that, iterable) {\n anInstance(that, C, CONSTRUCTOR_NAME);\n setInternalState(that, {\n type: CONSTRUCTOR_NAME,\n index: create(null),\n first: undefined,\n last: undefined,\n size: 0\n });\n if (!DESCRIPTORS) that.size = 0;\n if (iterable != undefined) iterate(iterable, that[ADDER], that, IS_MAP);\n });\n\n var getInternalState = internalStateGetterFor(CONSTRUCTOR_NAME);\n\n var define = function (that, key, value) {\n var state = getInternalState(that);\n var entry = getEntry(that, key);\n var previous, index;\n // change existing entry\n if (entry) {\n entry.value = value;\n // create new entry\n } else {\n state.last = entry = {\n index: index = fastKey(key, true),\n key: key,\n value: value,\n previous: previous = state.last,\n next: undefined,\n removed: false\n };\n if (!state.first) state.first = entry;\n if (previous) previous.next = entry;\n if (DESCRIPTORS) state.size++;\n else that.size++;\n // add to index\n if (index !== 'F') state.index[index] = entry;\n } return that;\n };\n\n var getEntry = function (that, key) {\n var state = getInternalState(that);\n // fast case\n var index = fastKey(key);\n var entry;\n if (index !== 'F') return state.index[index];\n // frozen object case\n for (entry = state.first; entry; entry = entry.next) {\n if (entry.key == key) return entry;\n }\n };\n\n redefineAll(C.prototype, {\n // 23.1.3.1 Map.prototype.clear()\n // 23.2.3.2 Set.prototype.clear()\n clear: function clear() {\n var that = this;\n var state = getInternalState(that);\n var data = state.index;\n var entry = state.first;\n while (entry) {\n entry.removed = true;\n if (entry.previous) entry.previous = entry.previous.next = undefined;\n delete data[entry.index];\n entry = entry.next;\n }\n state.first = state.last = undefined;\n if (DESCRIPTORS) state.size = 0;\n else that.size = 0;\n },\n // 23.1.3.3 Map.prototype.delete(key)\n // 23.2.3.4 Set.prototype.delete(value)\n 'delete': function (key) {\n var that = this;\n var state = getInternalState(that);\n var entry = getEntry(that, key);\n if (entry) {\n var next = entry.next;\n var prev = entry.previous;\n delete state.index[entry.index];\n entry.removed = true;\n if (prev) prev.next = next;\n if (next) next.previous = prev;\n if (state.first == entry) state.first = next;\n if (state.last == entry) state.last = prev;\n if (DESCRIPTORS) state.size--;\n else that.size--;\n } return !!entry;\n },\n // 23.2.3.6 Set.prototype.forEach(callbackfn, thisArg = undefined)\n // 23.1.3.5 Map.prototype.forEach(callbackfn, thisArg = undefined)\n forEach: function forEach(callbackfn /* , that = undefined */) {\n var state = getInternalState(this);\n var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);\n var entry;\n while (entry = entry ? entry.next : state.first) {\n boundFunction(entry.value, entry.key, this);\n // revert to the last existing entry\n while (entry && entry.removed) entry = entry.previous;\n }\n },\n // 23.1.3.7 Map.prototype.has(key)\n // 23.2.3.7 Set.prototype.has(value)\n has: function has(key) {\n return !!getEntry(this, key);\n }\n });\n\n redefineAll(C.prototype, IS_MAP ? {\n // 23.1.3.6 Map.prototype.get(key)\n get: function get(key) {\n var entry = getEntry(this, key);\n return entry && entry.value;\n },\n // 23.1.3.9 Map.prototype.set(key, value)\n set: function set(key, value) {\n return define(this, key === 0 ? 0 : key, value);\n }\n } : {\n // 23.2.3.1 Set.prototype.add(value)\n add: function add(value) {\n return define(this, value = value === 0 ? 0 : value, value);\n }\n });\n if (DESCRIPTORS) defineProperty(C.prototype, 'size', {\n get: function () {\n return getInternalState(this).size;\n }\n });\n return C;\n },\n setStrong: function (C, CONSTRUCTOR_NAME, IS_MAP) {\n var ITERATOR_NAME = CONSTRUCTOR_NAME + ' Iterator';\n var getInternalCollectionState = internalStateGetterFor(CONSTRUCTOR_NAME);\n var getInternalIteratorState = internalStateGetterFor(ITERATOR_NAME);\n // add .keys, .values, .entries, [@@iterator]\n // 23.1.3.4, 23.1.3.8, 23.1.3.11, 23.1.3.12, 23.2.3.5, 23.2.3.8, 23.2.3.10, 23.2.3.11\n defineIterator(C, CONSTRUCTOR_NAME, function (iterated, kind) {\n setInternalState(this, {\n type: ITERATOR_NAME,\n target: iterated,\n state: getInternalCollectionState(iterated),\n kind: kind,\n last: undefined\n });\n }, function () {\n var state = getInternalIteratorState(this);\n var kind = state.kind;\n var entry = state.last;\n // revert to the last existing entry\n while (entry && entry.removed) entry = entry.previous;\n // get next entry\n if (!state.target || !(state.last = entry = entry ? entry.next : state.state.first)) {\n // or finish the iteration\n state.target = undefined;\n return { value: undefined, done: true };\n }\n // return step by kind\n if (kind == 'keys') return { value: entry.key, done: false };\n if (kind == 'values') return { value: entry.value, done: false };\n return { value: [entry.key, entry.value], done: false };\n }, IS_MAP ? 'entries' : 'values', !IS_MAP, true);\n\n // add [@@species], 23.1.2.2, 23.2.2.2\n setSpecies(CONSTRUCTOR_NAME);\n }\n};\n","'use strict';\nvar redefineAll = require('../internals/redefine-all');\nvar getWeakData = require('../internals/internal-metadata').getWeakData;\nvar anObject = require('../internals/an-object');\nvar isObject = require('../internals/is-object');\nvar anInstance = require('../internals/an-instance');\nvar iterate = require('../internals/iterate');\nvar ArrayIterationModule = require('../internals/array-iteration');\nvar $has = require('../internals/has');\nvar InternalStateModule = require('../internals/internal-state');\n\nvar setInternalState = InternalStateModule.set;\nvar internalStateGetterFor = InternalStateModule.getterFor;\nvar find = ArrayIterationModule.find;\nvar findIndex = ArrayIterationModule.findIndex;\nvar id = 0;\n\n// fallback for uncaught frozen keys\nvar uncaughtFrozenStore = function (store) {\n return store.frozen || (store.frozen = new UncaughtFrozenStore());\n};\n\nvar UncaughtFrozenStore = function () {\n this.entries = [];\n};\n\nvar findUncaughtFrozen = function (store, key) {\n return find(store.entries, function (it) {\n return it[0] === key;\n });\n};\n\nUncaughtFrozenStore.prototype = {\n get: function (key) {\n var entry = findUncaughtFrozen(this, key);\n if (entry) return entry[1];\n },\n has: function (key) {\n return !!findUncaughtFrozen(this, key);\n },\n set: function (key, value) {\n var entry = findUncaughtFrozen(this, key);\n if (entry) entry[1] = value;\n else this.entries.push([key, value]);\n },\n 'delete': function (key) {\n var index = findIndex(this.entries, function (it) {\n return it[0] === key;\n });\n if (~index) this.entries.splice(index, 1);\n return !!~index;\n }\n};\n\nmodule.exports = {\n getConstructor: function (wrapper, CONSTRUCTOR_NAME, IS_MAP, ADDER) {\n var C = wrapper(function (that, iterable) {\n anInstance(that, C, CONSTRUCTOR_NAME);\n setInternalState(that, {\n type: CONSTRUCTOR_NAME,\n id: id++,\n frozen: undefined\n });\n if (iterable != undefined) iterate(iterable, that[ADDER], that, IS_MAP);\n });\n\n var getInternalState = internalStateGetterFor(CONSTRUCTOR_NAME);\n\n var define = function (that, key, value) {\n var state = getInternalState(that);\n var data = getWeakData(anObject(key), true);\n if (data === true) uncaughtFrozenStore(state).set(key, value);\n else data[state.id] = value;\n return that;\n };\n\n redefineAll(C.prototype, {\n // 23.3.3.2 WeakMap.prototype.delete(key)\n // 23.4.3.3 WeakSet.prototype.delete(value)\n 'delete': function (key) {\n var state = getInternalState(this);\n if (!isObject(key)) return false;\n var data = getWeakData(key);\n if (data === true) return uncaughtFrozenStore(state)['delete'](key);\n return data && $has(data, state.id) && delete data[state.id];\n },\n // 23.3.3.4 WeakMap.prototype.has(key)\n // 23.4.3.4 WeakSet.prototype.has(value)\n has: function has(key) {\n var state = getInternalState(this);\n if (!isObject(key)) return false;\n var data = getWeakData(key);\n if (data === true) return uncaughtFrozenStore(state).has(key);\n return data && $has(data, state.id);\n }\n });\n\n redefineAll(C.prototype, IS_MAP ? {\n // 23.3.3.3 WeakMap.prototype.get(key)\n get: function get(key) {\n var state = getInternalState(this);\n if (isObject(key)) {\n var data = getWeakData(key);\n if (data === true) return uncaughtFrozenStore(state).get(key);\n return data ? data[state.id] : undefined;\n }\n },\n // 23.3.3.5 WeakMap.prototype.set(key, value)\n set: function set(key, value) {\n return define(this, key, value);\n }\n } : {\n // 23.4.3.1 WeakSet.prototype.add(value)\n add: function add(value) {\n return define(this, value, true);\n }\n });\n\n return C;\n }\n};\n","'use strict';\nvar $ = require('../internals/export');\nvar global = require('../internals/global');\nvar isForced = require('../internals/is-forced');\nvar redefine = require('../internals/redefine');\nvar InternalMetadataModule = require('../internals/internal-metadata');\nvar iterate = require('../internals/iterate');\nvar anInstance = require('../internals/an-instance');\nvar isObject = require('../internals/is-object');\nvar fails = require('../internals/fails');\nvar checkCorrectnessOfIteration = require('../internals/check-correctness-of-iteration');\nvar setToStringTag = require('../internals/set-to-string-tag');\nvar inheritIfRequired = require('../internals/inherit-if-required');\n\nmodule.exports = function (CONSTRUCTOR_NAME, wrapper, common) {\n var IS_MAP = CONSTRUCTOR_NAME.indexOf('Map') !== -1;\n var IS_WEAK = CONSTRUCTOR_NAME.indexOf('Weak') !== -1;\n var ADDER = IS_MAP ? 'set' : 'add';\n var NativeConstructor = global[CONSTRUCTOR_NAME];\n var NativePrototype = NativeConstructor && NativeConstructor.prototype;\n var Constructor = NativeConstructor;\n var exported = {};\n\n var fixMethod = function (KEY) {\n var nativeMethod = NativePrototype[KEY];\n redefine(NativePrototype, KEY,\n KEY == 'add' ? function add(value) {\n nativeMethod.call(this, value === 0 ? 0 : value);\n return this;\n } : KEY == 'delete' ? function (key) {\n return IS_WEAK && !isObject(key) ? false : nativeMethod.call(this, key === 0 ? 0 : key);\n } : KEY == 'get' ? function get(key) {\n return IS_WEAK && !isObject(key) ? undefined : nativeMethod.call(this, key === 0 ? 0 : key);\n } : KEY == 'has' ? function has(key) {\n return IS_WEAK && !isObject(key) ? false : nativeMethod.call(this, key === 0 ? 0 : key);\n } : function set(key, value) {\n nativeMethod.call(this, key === 0 ? 0 : key, value);\n return this;\n }\n );\n };\n\n // eslint-disable-next-line max-len\n if (isForced(CONSTRUCTOR_NAME, typeof NativeConstructor != 'function' || !(IS_WEAK || NativePrototype.forEach && !fails(function () {\n new NativeConstructor().entries().next();\n })))) {\n // create collection constructor\n Constructor = common.getConstructor(wrapper, CONSTRUCTOR_NAME, IS_MAP, ADDER);\n InternalMetadataModule.REQUIRED = true;\n } else if (isForced(CONSTRUCTOR_NAME, true)) {\n var instance = new Constructor();\n // early implementations not supports chaining\n var HASNT_CHAINING = instance[ADDER](IS_WEAK ? {} : -0, 1) != instance;\n // V8 ~ Chromium 40- weak-collections throws on primitives, but should return false\n var THROWS_ON_PRIMITIVES = fails(function () { instance.has(1); });\n // most early implementations doesn't supports iterables, most modern - not close it correctly\n // eslint-disable-next-line no-new\n var ACCEPT_ITERABLES = checkCorrectnessOfIteration(function (iterable) { new NativeConstructor(iterable); });\n // for early implementations -0 and +0 not the same\n var BUGGY_ZERO = !IS_WEAK && fails(function () {\n // V8 ~ Chromium 42- fails only with 5+ elements\n var $instance = new NativeConstructor();\n var index = 5;\n while (index--) $instance[ADDER](index, index);\n return !$instance.has(-0);\n });\n\n if (!ACCEPT_ITERABLES) {\n Constructor = wrapper(function (dummy, iterable) {\n anInstance(dummy, Constructor, CONSTRUCTOR_NAME);\n var that = inheritIfRequired(new NativeConstructor(), dummy, Constructor);\n if (iterable != undefined) iterate(iterable, that[ADDER], that, IS_MAP);\n return that;\n });\n Constructor.prototype = NativePrototype;\n NativePrototype.constructor = Constructor;\n }\n\n if (THROWS_ON_PRIMITIVES || BUGGY_ZERO) {\n fixMethod('delete');\n fixMethod('has');\n IS_MAP && fixMethod('get');\n }\n\n if (BUGGY_ZERO || HASNT_CHAINING) fixMethod(ADDER);\n\n // weak collections should not contains .clear method\n if (IS_WEAK && NativePrototype.clear) delete NativePrototype.clear;\n }\n\n exported[CONSTRUCTOR_NAME] = Constructor;\n $({ global: true, forced: Constructor != NativeConstructor }, exported);\n\n setToStringTag(Constructor, CONSTRUCTOR_NAME);\n\n if (!IS_WEAK) common.setStrong(Constructor, CONSTRUCTOR_NAME, IS_MAP);\n\n return Constructor;\n};\n","// TODO: in core-js@4, move /modules/ dependencies to public entries for better optimization by tools like `preset-env`\nvar Map = require('../modules/es.map');\nvar WeakMap = require('../modules/es.weak-map');\nvar create = require('../internals/object-create');\nvar isObject = require('../internals/is-object');\n\nvar Node = function () {\n // keys\n this.object = null;\n this.symbol = null;\n // child nodes\n this.primitives = null;\n this.objectsByIndex = create(null);\n};\n\nNode.prototype.get = function (key, initializer) {\n return this[key] || (this[key] = initializer());\n};\n\nNode.prototype.next = function (i, it, IS_OBJECT) {\n var store = IS_OBJECT\n ? this.objectsByIndex[i] || (this.objectsByIndex[i] = new WeakMap())\n : this.primitives || (this.primitives = new Map());\n var entry = store.get(it);\n if (!entry) store.set(it, entry = new Node());\n return entry;\n};\n\nvar root = new Node();\n\nmodule.exports = function () {\n var active = root;\n var length = arguments.length;\n var i, it;\n // for prevent leaking, start from objects\n for (i = 0; i < length; i++) {\n if (isObject(it = arguments[i])) active = active.next(i, it, true);\n }\n if (this === Object && active === root) throw TypeError('Composite keys must contain a non-primitive component');\n for (i = 0; i < length; i++) {\n if (!isObject(it = arguments[i])) active = active.next(i, it, false);\n } return active;\n};\n","var has = require('../internals/has');\nvar ownKeys = require('../internals/own-keys');\nvar getOwnPropertyDescriptorModule = require('../internals/object-get-own-property-descriptor');\nvar definePropertyModule = require('../internals/object-define-property');\n\nmodule.exports = function (target, source) {\n var keys = ownKeys(source);\n var defineProperty = definePropertyModule.f;\n var getOwnPropertyDescriptor = getOwnPropertyDescriptorModule.f;\n for (var i = 0; i < keys.length; i++) {\n var key = keys[i];\n if (!has(target, key)) defineProperty(target, key, getOwnPropertyDescriptor(source, key));\n }\n};\n","var wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar MATCH = wellKnownSymbol('match');\n\nmodule.exports = function (METHOD_NAME) {\n var regexp = /./;\n try {\n '/./'[METHOD_NAME](regexp);\n } catch (e) {\n try {\n regexp[MATCH] = false;\n return '/./'[METHOD_NAME](regexp);\n } catch (f) { /* empty */ }\n } return false;\n};\n","var fails = require('../internals/fails');\n\nmodule.exports = !fails(function () {\n function F() { /* empty */ }\n F.prototype.constructor = null;\n return Object.getPrototypeOf(new F()) !== F.prototype;\n});\n","var requireObjectCoercible = require('../internals/require-object-coercible');\n\nvar quot = /\"/g;\n\n// B.2.3.2.1 CreateHTML(string, tag, attribute, value)\n// https://tc39.github.io/ecma262/#sec-createhtml\nmodule.exports = function (string, tag, attribute, value) {\n var S = String(requireObjectCoercible(string));\n var p1 = '<' + tag;\n if (attribute !== '') p1 += ' ' + attribute + '=\"' + String(value).replace(quot, '"') + '\"';\n return p1 + '>' + S + '';\n};\n","'use strict';\nvar IteratorPrototype = require('../internals/iterators-core').IteratorPrototype;\nvar create = require('../internals/object-create');\nvar createPropertyDescriptor = require('../internals/create-property-descriptor');\nvar setToStringTag = require('../internals/set-to-string-tag');\nvar Iterators = require('../internals/iterators');\n\nvar returnThis = function () { return this; };\n\nmodule.exports = function (IteratorConstructor, NAME, next) {\n var TO_STRING_TAG = NAME + ' Iterator';\n IteratorConstructor.prototype = create(IteratorPrototype, { next: createPropertyDescriptor(1, next) });\n setToStringTag(IteratorConstructor, TO_STRING_TAG, false, true);\n Iterators[TO_STRING_TAG] = returnThis;\n return IteratorConstructor;\n};\n","var DESCRIPTORS = require('../internals/descriptors');\nvar definePropertyModule = require('../internals/object-define-property');\nvar createPropertyDescriptor = require('../internals/create-property-descriptor');\n\nmodule.exports = DESCRIPTORS ? function (object, key, value) {\n return definePropertyModule.f(object, key, createPropertyDescriptor(1, value));\n} : function (object, key, value) {\n object[key] = value;\n return object;\n};\n","module.exports = function (bitmap, value) {\n return {\n enumerable: !(bitmap & 1),\n configurable: !(bitmap & 2),\n writable: !(bitmap & 4),\n value: value\n };\n};\n","'use strict';\nvar toPrimitive = require('../internals/to-primitive');\nvar definePropertyModule = require('../internals/object-define-property');\nvar createPropertyDescriptor = require('../internals/create-property-descriptor');\n\nmodule.exports = function (object, key, value) {\n var propertyKey = toPrimitive(key);\n if (propertyKey in object) definePropertyModule.f(object, propertyKey, createPropertyDescriptor(0, value));\n else object[propertyKey] = value;\n};\n","'use strict';\nvar fails = require('../internals/fails');\nvar padStart = require('../internals/string-pad').start;\n\nvar abs = Math.abs;\nvar DatePrototype = Date.prototype;\nvar getTime = DatePrototype.getTime;\nvar nativeDateToISOString = DatePrototype.toISOString;\n\n// `Date.prototype.toISOString` method implementation\n// https://tc39.github.io/ecma262/#sec-date.prototype.toisostring\n// PhantomJS / old WebKit fails here:\nmodule.exports = (fails(function () {\n return nativeDateToISOString.call(new Date(-5e13 - 1)) != '0385-07-25T07:06:39.999Z';\n}) || !fails(function () {\n nativeDateToISOString.call(new Date(NaN));\n})) ? function toISOString() {\n if (!isFinite(getTime.call(this))) throw RangeError('Invalid time value');\n var date = this;\n var year = date.getUTCFullYear();\n var milliseconds = date.getUTCMilliseconds();\n var sign = year < 0 ? '-' : year > 9999 ? '+' : '';\n return sign + padStart(abs(year), sign ? 6 : 4, 0) +\n '-' + padStart(date.getUTCMonth() + 1, 2, 0) +\n '-' + padStart(date.getUTCDate(), 2, 0) +\n 'T' + padStart(date.getUTCHours(), 2, 0) +\n ':' + padStart(date.getUTCMinutes(), 2, 0) +\n ':' + padStart(date.getUTCSeconds(), 2, 0) +\n '.' + padStart(milliseconds, 3, 0) +\n 'Z';\n} : nativeDateToISOString;\n","'use strict';\nvar anObject = require('../internals/an-object');\nvar toPrimitive = require('../internals/to-primitive');\n\nmodule.exports = function (hint) {\n if (hint !== 'string' && hint !== 'number' && hint !== 'default') {\n throw TypeError('Incorrect hint');\n } return toPrimitive(anObject(this), hint !== 'number');\n};\n","'use strict';\nvar $ = require('../internals/export');\nvar createIteratorConstructor = require('../internals/create-iterator-constructor');\nvar getPrototypeOf = require('../internals/object-get-prototype-of');\nvar setPrototypeOf = require('../internals/object-set-prototype-of');\nvar setToStringTag = require('../internals/set-to-string-tag');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar redefine = require('../internals/redefine');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar IS_PURE = require('../internals/is-pure');\nvar Iterators = require('../internals/iterators');\nvar IteratorsCore = require('../internals/iterators-core');\n\nvar IteratorPrototype = IteratorsCore.IteratorPrototype;\nvar BUGGY_SAFARI_ITERATORS = IteratorsCore.BUGGY_SAFARI_ITERATORS;\nvar ITERATOR = wellKnownSymbol('iterator');\nvar KEYS = 'keys';\nvar VALUES = 'values';\nvar ENTRIES = 'entries';\n\nvar returnThis = function () { return this; };\n\nmodule.exports = function (Iterable, NAME, IteratorConstructor, next, DEFAULT, IS_SET, FORCED) {\n createIteratorConstructor(IteratorConstructor, NAME, next);\n\n var getIterationMethod = function (KIND) {\n if (KIND === DEFAULT && defaultIterator) return defaultIterator;\n if (!BUGGY_SAFARI_ITERATORS && KIND in IterablePrototype) return IterablePrototype[KIND];\n switch (KIND) {\n case KEYS: return function keys() { return new IteratorConstructor(this, KIND); };\n case VALUES: return function values() { return new IteratorConstructor(this, KIND); };\n case ENTRIES: return function entries() { return new IteratorConstructor(this, KIND); };\n } return function () { return new IteratorConstructor(this); };\n };\n\n var TO_STRING_TAG = NAME + ' Iterator';\n var INCORRECT_VALUES_NAME = false;\n var IterablePrototype = Iterable.prototype;\n var nativeIterator = IterablePrototype[ITERATOR]\n || IterablePrototype['@@iterator']\n || DEFAULT && IterablePrototype[DEFAULT];\n var defaultIterator = !BUGGY_SAFARI_ITERATORS && nativeIterator || getIterationMethod(DEFAULT);\n var anyNativeIterator = NAME == 'Array' ? IterablePrototype.entries || nativeIterator : nativeIterator;\n var CurrentIteratorPrototype, methods, KEY;\n\n // fix native\n if (anyNativeIterator) {\n CurrentIteratorPrototype = getPrototypeOf(anyNativeIterator.call(new Iterable()));\n if (IteratorPrototype !== Object.prototype && CurrentIteratorPrototype.next) {\n if (!IS_PURE && getPrototypeOf(CurrentIteratorPrototype) !== IteratorPrototype) {\n if (setPrototypeOf) {\n setPrototypeOf(CurrentIteratorPrototype, IteratorPrototype);\n } else if (typeof CurrentIteratorPrototype[ITERATOR] != 'function') {\n createNonEnumerableProperty(CurrentIteratorPrototype, ITERATOR, returnThis);\n }\n }\n // Set @@toStringTag to native iterators\n setToStringTag(CurrentIteratorPrototype, TO_STRING_TAG, true, true);\n if (IS_PURE) Iterators[TO_STRING_TAG] = returnThis;\n }\n }\n\n // fix Array#{values, @@iterator}.name in V8 / FF\n if (DEFAULT == VALUES && nativeIterator && nativeIterator.name !== VALUES) {\n INCORRECT_VALUES_NAME = true;\n defaultIterator = function values() { return nativeIterator.call(this); };\n }\n\n // define iterator\n if ((!IS_PURE || FORCED) && IterablePrototype[ITERATOR] !== defaultIterator) {\n createNonEnumerableProperty(IterablePrototype, ITERATOR, defaultIterator);\n }\n Iterators[NAME] = defaultIterator;\n\n // export additional methods\n if (DEFAULT) {\n methods = {\n values: getIterationMethod(VALUES),\n keys: IS_SET ? defaultIterator : getIterationMethod(KEYS),\n entries: getIterationMethod(ENTRIES)\n };\n if (FORCED) for (KEY in methods) {\n if (BUGGY_SAFARI_ITERATORS || INCORRECT_VALUES_NAME || !(KEY in IterablePrototype)) {\n redefine(IterablePrototype, KEY, methods[KEY]);\n }\n } else $({ target: NAME, proto: true, forced: BUGGY_SAFARI_ITERATORS || INCORRECT_VALUES_NAME }, methods);\n }\n\n return methods;\n};\n","var path = require('../internals/path');\nvar has = require('../internals/has');\nvar wrappedWellKnownSymbolModule = require('../internals/well-known-symbol-wrapped');\nvar defineProperty = require('../internals/object-define-property').f;\n\nmodule.exports = function (NAME) {\n var Symbol = path.Symbol || (path.Symbol = {});\n if (!has(Symbol, NAME)) defineProperty(Symbol, NAME, {\n value: wrappedWellKnownSymbolModule.f(NAME)\n });\n};\n","var fails = require('../internals/fails');\n\n// Thank's IE8 for his funny defineProperty\nmodule.exports = !fails(function () {\n return Object.defineProperty({}, 1, { get: function () { return 7; } })[1] != 7;\n});\n","var global = require('../internals/global');\nvar isObject = require('../internals/is-object');\n\nvar document = global.document;\n// typeof document.createElement is 'object' in old IE\nvar EXISTS = isObject(document) && isObject(document.createElement);\n\nmodule.exports = function (it) {\n return EXISTS ? document.createElement(it) : {};\n};\n","// iterable DOM collections\n// flag - `iterable` interface - 'entries', 'keys', 'values', 'forEach' methods\nmodule.exports = {\n CSSRuleList: 0,\n CSSStyleDeclaration: 0,\n CSSValueList: 0,\n ClientRectList: 0,\n DOMRectList: 0,\n DOMStringList: 0,\n DOMTokenList: 1,\n DataTransferItemList: 0,\n FileList: 0,\n HTMLAllCollection: 0,\n HTMLCollection: 0,\n HTMLFormElement: 0,\n HTMLSelectElement: 0,\n MediaList: 0,\n MimeTypeArray: 0,\n NamedNodeMap: 0,\n NodeList: 1,\n PaintRequestList: 0,\n Plugin: 0,\n PluginArray: 0,\n SVGLengthList: 0,\n SVGNumberList: 0,\n SVGPathSegList: 0,\n SVGPointList: 0,\n SVGStringList: 0,\n SVGTransformList: 0,\n SourceBufferList: 0,\n StyleSheetList: 0,\n TextTrackCueList: 0,\n TextTrackList: 0,\n TouchList: 0\n};\n","var userAgent = require('../internals/engine-user-agent');\n\nmodule.exports = /(iphone|ipod|ipad).*applewebkit/i.test(userAgent);\n","var getBuiltIn = require('../internals/get-built-in');\n\nmodule.exports = getBuiltIn('navigator', 'userAgent') || '';\n","var global = require('../internals/global');\nvar userAgent = require('../internals/engine-user-agent');\n\nvar process = global.process;\nvar versions = process && process.versions;\nvar v8 = versions && versions.v8;\nvar match, version;\n\nif (v8) {\n match = v8.split('.');\n version = match[0] + match[1];\n} else if (userAgent) {\n match = userAgent.match(/Edge\\/(\\d+)/);\n if (!match || match[1] >= 74) {\n match = userAgent.match(/Chrome\\/(\\d+)/);\n if (match) version = match[1];\n }\n}\n\nmodule.exports = version && +version;\n","// IE8- don't enum bug keys\nmodule.exports = [\n 'constructor',\n 'hasOwnProperty',\n 'isPrototypeOf',\n 'propertyIsEnumerable',\n 'toLocaleString',\n 'toString',\n 'valueOf'\n];\n","var global = require('../internals/global');\nvar getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar redefine = require('../internals/redefine');\nvar setGlobal = require('../internals/set-global');\nvar copyConstructorProperties = require('../internals/copy-constructor-properties');\nvar isForced = require('../internals/is-forced');\n\n/*\n options.target - name of the target object\n options.global - target is the global object\n options.stat - export as static methods of target\n options.proto - export as prototype methods of target\n options.real - real prototype method for the `pure` version\n options.forced - export even if the native feature is available\n options.bind - bind methods to the target, required for the `pure` version\n options.wrap - wrap constructors to preventing global pollution, required for the `pure` version\n options.unsafe - use the simple assignment of property instead of delete + defineProperty\n options.sham - add a flag to not completely full polyfills\n options.enumerable - export as enumerable property\n options.noTargetGet - prevent calling a getter on target\n*/\nmodule.exports = function (options, source) {\n var TARGET = options.target;\n var GLOBAL = options.global;\n var STATIC = options.stat;\n var FORCED, target, key, targetProperty, sourceProperty, descriptor;\n if (GLOBAL) {\n target = global;\n } else if (STATIC) {\n target = global[TARGET] || setGlobal(TARGET, {});\n } else {\n target = (global[TARGET] || {}).prototype;\n }\n if (target) for (key in source) {\n sourceProperty = source[key];\n if (options.noTargetGet) {\n descriptor = getOwnPropertyDescriptor(target, key);\n targetProperty = descriptor && descriptor.value;\n } else targetProperty = target[key];\n FORCED = isForced(GLOBAL ? key : TARGET + (STATIC ? '.' : '#') + key, options.forced);\n // contained in target\n if (!FORCED && targetProperty !== undefined) {\n if (typeof sourceProperty === typeof targetProperty) continue;\n copyConstructorProperties(sourceProperty, targetProperty);\n }\n // add a flag to not completely full polyfills\n if (options.sham || (targetProperty && targetProperty.sham)) {\n createNonEnumerableProperty(sourceProperty, 'sham', true);\n }\n // extend global\n redefine(target, key, sourceProperty, options);\n }\n};\n","module.exports = function (exec) {\n try {\n return !!exec();\n } catch (error) {\n return true;\n }\n};\n","'use strict';\n// TODO: Remove from `core-js@4` since it's moved to entry points\nrequire('../modules/es.regexp.exec');\nvar redefine = require('../internals/redefine');\nvar fails = require('../internals/fails');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar regexpExec = require('../internals/regexp-exec');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\n\nvar SPECIES = wellKnownSymbol('species');\n\nvar REPLACE_SUPPORTS_NAMED_GROUPS = !fails(function () {\n // #replace needs built-in support for named groups.\n // #match works fine because it just return the exec results, even if it has\n // a \"grops\" property.\n var re = /./;\n re.exec = function () {\n var result = [];\n result.groups = { a: '7' };\n return result;\n };\n return ''.replace(re, '$') !== '7';\n});\n\n// IE <= 11 replaces $0 with the whole match, as if it was $&\n// https://stackoverflow.com/questions/6024666/getting-ie-to-replace-a-regex-with-the-literal-string-0\nvar REPLACE_KEEPS_$0 = (function () {\n return 'a'.replace(/./, '$0') === '$0';\n})();\n\nvar REPLACE = wellKnownSymbol('replace');\n// Safari <= 13.0.3(?) substitutes nth capture where n>m with an empty string\nvar REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE = (function () {\n if (/./[REPLACE]) {\n return /./[REPLACE]('a', '$0') === '';\n }\n return false;\n})();\n\n// Chrome 51 has a buggy \"split\" implementation when RegExp#exec !== nativeExec\n// Weex JS has frozen built-in prototypes, so use try / catch wrapper\nvar SPLIT_WORKS_WITH_OVERWRITTEN_EXEC = !fails(function () {\n var re = /(?:)/;\n var originalExec = re.exec;\n re.exec = function () { return originalExec.apply(this, arguments); };\n var result = 'ab'.split(re);\n return result.length !== 2 || result[0] !== 'a' || result[1] !== 'b';\n});\n\nmodule.exports = function (KEY, length, exec, sham) {\n var SYMBOL = wellKnownSymbol(KEY);\n\n var DELEGATES_TO_SYMBOL = !fails(function () {\n // String methods call symbol-named RegEp methods\n var O = {};\n O[SYMBOL] = function () { return 7; };\n return ''[KEY](O) != 7;\n });\n\n var DELEGATES_TO_EXEC = DELEGATES_TO_SYMBOL && !fails(function () {\n // Symbol-named RegExp methods call .exec\n var execCalled = false;\n var re = /a/;\n\n if (KEY === 'split') {\n // We can't use real regex here since it causes deoptimization\n // and serious performance degradation in V8\n // https://github.com/zloirock/core-js/issues/306\n re = {};\n // RegExp[@@split] doesn't call the regex's exec method, but first creates\n // a new one. We need to return the patched regex when creating the new one.\n re.constructor = {};\n re.constructor[SPECIES] = function () { return re; };\n re.flags = '';\n re[SYMBOL] = /./[SYMBOL];\n }\n\n re.exec = function () { execCalled = true; return null; };\n\n re[SYMBOL]('');\n return !execCalled;\n });\n\n if (\n !DELEGATES_TO_SYMBOL ||\n !DELEGATES_TO_EXEC ||\n (KEY === 'replace' && !(\n REPLACE_SUPPORTS_NAMED_GROUPS &&\n REPLACE_KEEPS_$0 &&\n !REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE\n )) ||\n (KEY === 'split' && !SPLIT_WORKS_WITH_OVERWRITTEN_EXEC)\n ) {\n var nativeRegExpMethod = /./[SYMBOL];\n var methods = exec(SYMBOL, ''[KEY], function (nativeMethod, regexp, str, arg2, forceStringMethod) {\n if (regexp.exec === regexpExec) {\n if (DELEGATES_TO_SYMBOL && !forceStringMethod) {\n // The native String method already delegates to @@method (this\n // polyfilled function), leasing to infinite recursion.\n // We avoid it by directly calling the native @@method method.\n return { done: true, value: nativeRegExpMethod.call(regexp, str, arg2) };\n }\n return { done: true, value: nativeMethod.call(str, regexp, arg2) };\n }\n return { done: false };\n }, {\n REPLACE_KEEPS_$0: REPLACE_KEEPS_$0,\n REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE: REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE\n });\n var stringMethod = methods[0];\n var regexMethod = methods[1];\n\n redefine(String.prototype, KEY, stringMethod);\n redefine(RegExp.prototype, SYMBOL, length == 2\n // 21.2.5.8 RegExp.prototype[@@replace](string, replaceValue)\n // 21.2.5.11 RegExp.prototype[@@split](string, limit)\n ? function (string, arg) { return regexMethod.call(string, this, arg); }\n // 21.2.5.6 RegExp.prototype[@@match](string)\n // 21.2.5.9 RegExp.prototype[@@search](string)\n : function (string) { return regexMethod.call(string, this); }\n );\n }\n\n if (sham) createNonEnumerableProperty(RegExp.prototype[SYMBOL], 'sham', true);\n};\n","'use strict';\nvar isArray = require('../internals/is-array');\nvar toLength = require('../internals/to-length');\nvar bind = require('../internals/function-bind-context');\n\n// `FlattenIntoArray` abstract operation\n// https://tc39.github.io/proposal-flatMap/#sec-FlattenIntoArray\nvar flattenIntoArray = function (target, original, source, sourceLen, start, depth, mapper, thisArg) {\n var targetIndex = start;\n var sourceIndex = 0;\n var mapFn = mapper ? bind(mapper, thisArg, 3) : false;\n var element;\n\n while (sourceIndex < sourceLen) {\n if (sourceIndex in source) {\n element = mapFn ? mapFn(source[sourceIndex], sourceIndex, original) : source[sourceIndex];\n\n if (depth > 0 && isArray(element)) {\n targetIndex = flattenIntoArray(target, original, element, toLength(element.length), targetIndex, depth - 1) - 1;\n } else {\n if (targetIndex >= 0x1FFFFFFFFFFFFF) throw TypeError('Exceed the acceptable array length');\n target[targetIndex] = element;\n }\n\n targetIndex++;\n }\n sourceIndex++;\n }\n return targetIndex;\n};\n\nmodule.exports = flattenIntoArray;\n","var fails = require('../internals/fails');\n\nmodule.exports = !fails(function () {\n return Object.isExtensible(Object.preventExtensions({}));\n});\n","var aFunction = require('../internals/a-function');\n\n// optional / simple context binding\nmodule.exports = function (fn, that, length) {\n aFunction(fn);\n if (that === undefined) return fn;\n switch (length) {\n case 0: return function () {\n return fn.call(that);\n };\n case 1: return function (a) {\n return fn.call(that, a);\n };\n case 2: return function (a, b) {\n return fn.call(that, a, b);\n };\n case 3: return function (a, b, c) {\n return fn.call(that, a, b, c);\n };\n }\n return function (/* ...args */) {\n return fn.apply(that, arguments);\n };\n};\n","'use strict';\nvar aFunction = require('../internals/a-function');\nvar isObject = require('../internals/is-object');\n\nvar slice = [].slice;\nvar factories = {};\n\nvar construct = function (C, argsLength, args) {\n if (!(argsLength in factories)) {\n for (var list = [], i = 0; i < argsLength; i++) list[i] = 'a[' + i + ']';\n // eslint-disable-next-line no-new-func\n factories[argsLength] = Function('C,a', 'return new C(' + list.join(',') + ')');\n } return factories[argsLength](C, args);\n};\n\n// `Function.prototype.bind` method implementation\n// https://tc39.github.io/ecma262/#sec-function.prototype.bind\nmodule.exports = Function.bind || function bind(that /* , ...args */) {\n var fn = aFunction(this);\n var partArgs = slice.call(arguments, 1);\n var boundFunction = function bound(/* args... */) {\n var args = partArgs.concat(slice.call(arguments));\n return this instanceof boundFunction ? construct(fn, args.length, args) : fn.apply(that, args);\n };\n if (isObject(fn.prototype)) boundFunction.prototype = fn.prototype;\n return boundFunction;\n};\n","var getIteratorMethod = require('../internals/get-iterator-method');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar ASYNC_ITERATOR = wellKnownSymbol('asyncIterator');\n\nmodule.exports = function (it) {\n var method = it[ASYNC_ITERATOR];\n return method === undefined ? getIteratorMethod(it) : method;\n};\n","var path = require('../internals/path');\nvar global = require('../internals/global');\n\nvar aFunction = function (variable) {\n return typeof variable == 'function' ? variable : undefined;\n};\n\nmodule.exports = function (namespace, method) {\n return arguments.length < 2 ? aFunction(path[namespace]) || aFunction(global[namespace])\n : path[namespace] && path[namespace][method] || global[namespace] && global[namespace][method];\n};\n","var classof = require('../internals/classof');\nvar Iterators = require('../internals/iterators');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar ITERATOR = wellKnownSymbol('iterator');\n\nmodule.exports = function (it) {\n if (it != undefined) return it[ITERATOR]\n || it['@@iterator']\n || Iterators[classof(it)];\n};\n","var anObject = require('../internals/an-object');\nvar getIteratorMethod = require('../internals/get-iterator-method');\n\nmodule.exports = function (it) {\n var iteratorMethod = getIteratorMethod(it);\n if (typeof iteratorMethod != 'function') {\n throw TypeError(String(it) + ' is not iterable');\n } return anObject(iteratorMethod.call(it));\n};\n","var IS_PURE = require('../internals/is-pure');\nvar getIterator = require('../internals/get-iterator');\n\nmodule.exports = IS_PURE ? getIterator : function (it) {\n // eslint-disable-next-line no-undef\n return Map.prototype.entries.call(it);\n};\n","var IS_PURE = require('../internals/is-pure');\nvar getIterator = require('../internals/get-iterator');\n\nmodule.exports = IS_PURE ? getIterator : function (it) {\n // eslint-disable-next-line no-undef\n return Set.prototype.values.call(it);\n};\n","var check = function (it) {\n return it && it.Math == Math && it;\n};\n\n// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028\nmodule.exports =\n // eslint-disable-next-line no-undef\n check(typeof globalThis == 'object' && globalThis) ||\n check(typeof window == 'object' && window) ||\n check(typeof self == 'object' && self) ||\n check(typeof global == 'object' && global) ||\n // eslint-disable-next-line no-new-func\n Function('return this')();\n","var hasOwnProperty = {}.hasOwnProperty;\n\nmodule.exports = function (it, key) {\n return hasOwnProperty.call(it, key);\n};\n","module.exports = {};\n","var global = require('../internals/global');\n\nmodule.exports = function (a, b) {\n var console = global.console;\n if (console && console.error) {\n arguments.length === 1 ? console.error(a) : console.error(a, b);\n }\n};\n","var getBuiltIn = require('../internals/get-built-in');\n\nmodule.exports = getBuiltIn('document', 'documentElement');\n","var DESCRIPTORS = require('../internals/descriptors');\nvar fails = require('../internals/fails');\nvar createElement = require('../internals/document-create-element');\n\n// Thank's IE8 for his funny defineProperty\nmodule.exports = !DESCRIPTORS && !fails(function () {\n return Object.defineProperty(createElement('div'), 'a', {\n get: function () { return 7; }\n }).a != 7;\n});\n","// IEEE754 conversions based on https://github.com/feross/ieee754\n// eslint-disable-next-line no-shadow-restricted-names\nvar Infinity = 1 / 0;\nvar abs = Math.abs;\nvar pow = Math.pow;\nvar floor = Math.floor;\nvar log = Math.log;\nvar LN2 = Math.LN2;\n\nvar pack = function (number, mantissaLength, bytes) {\n var buffer = new Array(bytes);\n var exponentLength = bytes * 8 - mantissaLength - 1;\n var eMax = (1 << exponentLength) - 1;\n var eBias = eMax >> 1;\n var rt = mantissaLength === 23 ? pow(2, -24) - pow(2, -77) : 0;\n var sign = number < 0 || number === 0 && 1 / number < 0 ? 1 : 0;\n var index = 0;\n var exponent, mantissa, c;\n number = abs(number);\n // eslint-disable-next-line no-self-compare\n if (number != number || number === Infinity) {\n // eslint-disable-next-line no-self-compare\n mantissa = number != number ? 1 : 0;\n exponent = eMax;\n } else {\n exponent = floor(log(number) / LN2);\n if (number * (c = pow(2, -exponent)) < 1) {\n exponent--;\n c *= 2;\n }\n if (exponent + eBias >= 1) {\n number += rt / c;\n } else {\n number += rt * pow(2, 1 - eBias);\n }\n if (number * c >= 2) {\n exponent++;\n c /= 2;\n }\n if (exponent + eBias >= eMax) {\n mantissa = 0;\n exponent = eMax;\n } else if (exponent + eBias >= 1) {\n mantissa = (number * c - 1) * pow(2, mantissaLength);\n exponent = exponent + eBias;\n } else {\n mantissa = number * pow(2, eBias - 1) * pow(2, mantissaLength);\n exponent = 0;\n }\n }\n for (; mantissaLength >= 8; buffer[index++] = mantissa & 255, mantissa /= 256, mantissaLength -= 8);\n exponent = exponent << mantissaLength | mantissa;\n exponentLength += mantissaLength;\n for (; exponentLength > 0; buffer[index++] = exponent & 255, exponent /= 256, exponentLength -= 8);\n buffer[--index] |= sign * 128;\n return buffer;\n};\n\nvar unpack = function (buffer, mantissaLength) {\n var bytes = buffer.length;\n var exponentLength = bytes * 8 - mantissaLength - 1;\n var eMax = (1 << exponentLength) - 1;\n var eBias = eMax >> 1;\n var nBits = exponentLength - 7;\n var index = bytes - 1;\n var sign = buffer[index--];\n var exponent = sign & 127;\n var mantissa;\n sign >>= 7;\n for (; nBits > 0; exponent = exponent * 256 + buffer[index], index--, nBits -= 8);\n mantissa = exponent & (1 << -nBits) - 1;\n exponent >>= -nBits;\n nBits += mantissaLength;\n for (; nBits > 0; mantissa = mantissa * 256 + buffer[index], index--, nBits -= 8);\n if (exponent === 0) {\n exponent = 1 - eBias;\n } else if (exponent === eMax) {\n return mantissa ? NaN : sign ? -Infinity : Infinity;\n } else {\n mantissa = mantissa + pow(2, mantissaLength);\n exponent = exponent - eBias;\n } return (sign ? -1 : 1) * mantissa * pow(2, exponent - mantissaLength);\n};\n\nmodule.exports = {\n pack: pack,\n unpack: unpack\n};\n","var fails = require('../internals/fails');\nvar classof = require('../internals/classof-raw');\n\nvar split = ''.split;\n\n// fallback for non-array-like ES3 and non-enumerable old V8 strings\nmodule.exports = fails(function () {\n // throws an error in rhino, see https://github.com/mozilla/rhino/issues/346\n // eslint-disable-next-line no-prototype-builtins\n return !Object('z').propertyIsEnumerable(0);\n}) ? function (it) {\n return classof(it) == 'String' ? split.call(it, '') : Object(it);\n} : Object;\n","var isObject = require('../internals/is-object');\nvar setPrototypeOf = require('../internals/object-set-prototype-of');\n\n// makes subclassing work correct for wrapped built-ins\nmodule.exports = function ($this, dummy, Wrapper) {\n var NewTarget, NewTargetPrototype;\n if (\n // it can work only with native `setPrototypeOf`\n setPrototypeOf &&\n // we haven't completely correct pre-ES6 way for getting `new.target`, so use this\n typeof (NewTarget = dummy.constructor) == 'function' &&\n NewTarget !== Wrapper &&\n isObject(NewTargetPrototype = NewTarget.prototype) &&\n NewTargetPrototype !== Wrapper.prototype\n ) setPrototypeOf($this, NewTargetPrototype);\n return $this;\n};\n","var store = require('../internals/shared-store');\n\nvar functionToString = Function.toString;\n\n// this helper broken in `3.4.1-3.4.4`, so we can't use `shared` helper\nif (typeof store.inspectSource != 'function') {\n store.inspectSource = function (it) {\n return functionToString.call(it);\n };\n}\n\nmodule.exports = store.inspectSource;\n","var hiddenKeys = require('../internals/hidden-keys');\nvar isObject = require('../internals/is-object');\nvar has = require('../internals/has');\nvar defineProperty = require('../internals/object-define-property').f;\nvar uid = require('../internals/uid');\nvar FREEZING = require('../internals/freezing');\n\nvar METADATA = uid('meta');\nvar id = 0;\n\nvar isExtensible = Object.isExtensible || function () {\n return true;\n};\n\nvar setMetadata = function (it) {\n defineProperty(it, METADATA, { value: {\n objectID: 'O' + ++id, // object ID\n weakData: {} // weak collections IDs\n } });\n};\n\nvar fastKey = function (it, create) {\n // return a primitive with prefix\n if (!isObject(it)) return typeof it == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it;\n if (!has(it, METADATA)) {\n // can't set metadata to uncaught frozen object\n if (!isExtensible(it)) return 'F';\n // not necessary to add metadata\n if (!create) return 'E';\n // add missing metadata\n setMetadata(it);\n // return object ID\n } return it[METADATA].objectID;\n};\n\nvar getWeakData = function (it, create) {\n if (!has(it, METADATA)) {\n // can't set metadata to uncaught frozen object\n if (!isExtensible(it)) return true;\n // not necessary to add metadata\n if (!create) return false;\n // add missing metadata\n setMetadata(it);\n // return the store of weak collections IDs\n } return it[METADATA].weakData;\n};\n\n// add metadata on freeze-family methods calling\nvar onFreeze = function (it) {\n if (FREEZING && meta.REQUIRED && isExtensible(it) && !has(it, METADATA)) setMetadata(it);\n return it;\n};\n\nvar meta = module.exports = {\n REQUIRED: false,\n fastKey: fastKey,\n getWeakData: getWeakData,\n onFreeze: onFreeze\n};\n\nhiddenKeys[METADATA] = true;\n","var NATIVE_WEAK_MAP = require('../internals/native-weak-map');\nvar global = require('../internals/global');\nvar isObject = require('../internals/is-object');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar objectHas = require('../internals/has');\nvar sharedKey = require('../internals/shared-key');\nvar hiddenKeys = require('../internals/hidden-keys');\n\nvar WeakMap = global.WeakMap;\nvar set, get, has;\n\nvar enforce = function (it) {\n return has(it) ? get(it) : set(it, {});\n};\n\nvar getterFor = function (TYPE) {\n return function (it) {\n var state;\n if (!isObject(it) || (state = get(it)).type !== TYPE) {\n throw TypeError('Incompatible receiver, ' + TYPE + ' required');\n } return state;\n };\n};\n\nif (NATIVE_WEAK_MAP) {\n var store = new WeakMap();\n var wmget = store.get;\n var wmhas = store.has;\n var wmset = store.set;\n set = function (it, metadata) {\n wmset.call(store, it, metadata);\n return metadata;\n };\n get = function (it) {\n return wmget.call(store, it) || {};\n };\n has = function (it) {\n return wmhas.call(store, it);\n };\n} else {\n var STATE = sharedKey('state');\n hiddenKeys[STATE] = true;\n set = function (it, metadata) {\n createNonEnumerableProperty(it, STATE, metadata);\n return metadata;\n };\n get = function (it) {\n return objectHas(it, STATE) ? it[STATE] : {};\n };\n has = function (it) {\n return objectHas(it, STATE);\n };\n}\n\nmodule.exports = {\n set: set,\n get: get,\n has: has,\n enforce: enforce,\n getterFor: getterFor\n};\n","var wellKnownSymbol = require('../internals/well-known-symbol');\nvar Iterators = require('../internals/iterators');\n\nvar ITERATOR = wellKnownSymbol('iterator');\nvar ArrayPrototype = Array.prototype;\n\n// check on default Array iterator\nmodule.exports = function (it) {\n return it !== undefined && (Iterators.Array === it || ArrayPrototype[ITERATOR] === it);\n};\n","var classof = require('../internals/classof-raw');\n\n// `IsArray` abstract operation\n// https://tc39.github.io/ecma262/#sec-isarray\nmodule.exports = Array.isArray || function isArray(arg) {\n return classof(arg) == 'Array';\n};\n","var fails = require('../internals/fails');\n\nvar replacement = /#|\\.prototype\\./;\n\nvar isForced = function (feature, detection) {\n var value = data[normalize(feature)];\n return value == POLYFILL ? true\n : value == NATIVE ? false\n : typeof detection == 'function' ? fails(detection)\n : !!detection;\n};\n\nvar normalize = isForced.normalize = function (string) {\n return String(string).replace(replacement, '.').toLowerCase();\n};\n\nvar data = isForced.data = {};\nvar NATIVE = isForced.NATIVE = 'N';\nvar POLYFILL = isForced.POLYFILL = 'P';\n\nmodule.exports = isForced;\n","var isObject = require('../internals/is-object');\n\nvar floor = Math.floor;\n\n// `Number.isInteger` method implementation\n// https://tc39.github.io/ecma262/#sec-number.isinteger\nmodule.exports = function isInteger(it) {\n return !isObject(it) && isFinite(it) && floor(it) === it;\n};\n","module.exports = function (it) {\n return typeof it === 'object' ? it !== null : typeof it === 'function';\n};\n","module.exports = false;\n","var isObject = require('../internals/is-object');\nvar classof = require('../internals/classof-raw');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar MATCH = wellKnownSymbol('match');\n\n// `IsRegExp` abstract operation\n// https://tc39.github.io/ecma262/#sec-isregexp\nmodule.exports = function (it) {\n var isRegExp;\n return isObject(it) && ((isRegExp = it[MATCH]) !== undefined ? !!isRegExp : classof(it) == 'RegExp');\n};\n","var anObject = require('../internals/an-object');\nvar isArrayIteratorMethod = require('../internals/is-array-iterator-method');\nvar toLength = require('../internals/to-length');\nvar bind = require('../internals/function-bind-context');\nvar getIteratorMethod = require('../internals/get-iterator-method');\nvar callWithSafeIterationClosing = require('../internals/call-with-safe-iteration-closing');\n\nvar Result = function (stopped, result) {\n this.stopped = stopped;\n this.result = result;\n};\n\nvar iterate = module.exports = function (iterable, fn, that, AS_ENTRIES, IS_ITERATOR) {\n var boundFunction = bind(fn, that, AS_ENTRIES ? 2 : 1);\n var iterator, iterFn, index, length, result, next, step;\n\n if (IS_ITERATOR) {\n iterator = iterable;\n } else {\n iterFn = getIteratorMethod(iterable);\n if (typeof iterFn != 'function') throw TypeError('Target is not iterable');\n // optimisation for array iterators\n if (isArrayIteratorMethod(iterFn)) {\n for (index = 0, length = toLength(iterable.length); length > index; index++) {\n result = AS_ENTRIES\n ? boundFunction(anObject(step = iterable[index])[0], step[1])\n : boundFunction(iterable[index]);\n if (result && result instanceof Result) return result;\n } return new Result(false);\n }\n iterator = iterFn.call(iterable);\n }\n\n next = iterator.next;\n while (!(step = next.call(iterator)).done) {\n result = callWithSafeIterationClosing(iterator, boundFunction, step.value, AS_ENTRIES);\n if (typeof result == 'object' && result && result instanceof Result) return result;\n } return new Result(false);\n};\n\niterate.stop = function (result) {\n return new Result(true, result);\n};\n","'use strict';\nvar path = require('../internals/path');\nvar aFunction = require('../internals/a-function');\nvar anObject = require('../internals/an-object');\nvar create = require('../internals/object-create');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar redefineAll = require('../internals/redefine-all');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar InternalStateModule = require('../internals/internal-state');\n\nvar setInternalState = InternalStateModule.set;\nvar getInternalState = InternalStateModule.get;\n\nvar TO_STRING_TAG = wellKnownSymbol('toStringTag');\n\nvar $return = function (value) {\n var iterator = getInternalState(this).iterator;\n var $$return = iterator['return'];\n return $$return === undefined ? { done: true, value: value } : anObject($$return.call(iterator, value));\n};\n\nvar $throw = function (value) {\n var iterator = getInternalState(this).iterator;\n var $$throw = iterator['throw'];\n if ($$throw === undefined) throw value;\n return $$throw.call(iterator, value);\n};\n\nmodule.exports = function (nextHandler, IS_ITERATOR) {\n var IteratorProxy = function Iterator(state) {\n state.next = aFunction(state.iterator.next);\n state.done = false;\n setInternalState(this, state);\n };\n\n IteratorProxy.prototype = redefineAll(create(path.Iterator.prototype), {\n next: function next() {\n var state = getInternalState(this);\n var result = state.done ? undefined : nextHandler.apply(state, arguments);\n return { done: state.done, value: result };\n },\n 'return': $return,\n 'throw': $throw\n });\n\n if (!IS_ITERATOR) {\n createNonEnumerableProperty(IteratorProxy.prototype, TO_STRING_TAG, 'Generator');\n }\n\n return IteratorProxy;\n};\n","'use strict';\nvar getPrototypeOf = require('../internals/object-get-prototype-of');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar has = require('../internals/has');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar IS_PURE = require('../internals/is-pure');\n\nvar ITERATOR = wellKnownSymbol('iterator');\nvar BUGGY_SAFARI_ITERATORS = false;\n\nvar returnThis = function () { return this; };\n\n// `%IteratorPrototype%` object\n// https://tc39.github.io/ecma262/#sec-%iteratorprototype%-object\nvar IteratorPrototype, PrototypeOfArrayIteratorPrototype, arrayIterator;\n\nif ([].keys) {\n arrayIterator = [].keys();\n // Safari 8 has buggy iterators w/o `next`\n if (!('next' in arrayIterator)) BUGGY_SAFARI_ITERATORS = true;\n else {\n PrototypeOfArrayIteratorPrototype = getPrototypeOf(getPrototypeOf(arrayIterator));\n if (PrototypeOfArrayIteratorPrototype !== Object.prototype) IteratorPrototype = PrototypeOfArrayIteratorPrototype;\n }\n}\n\nif (IteratorPrototype == undefined) IteratorPrototype = {};\n\n// 25.1.2.1.1 %IteratorPrototype%[@@iterator]()\nif (!IS_PURE && !has(IteratorPrototype, ITERATOR)) {\n createNonEnumerableProperty(IteratorPrototype, ITERATOR, returnThis);\n}\n\nmodule.exports = {\n IteratorPrototype: IteratorPrototype,\n BUGGY_SAFARI_ITERATORS: BUGGY_SAFARI_ITERATORS\n};\n","module.exports = {};\n","'use strict';\nvar anObject = require('../internals/an-object');\n\n// `Map.prototype.upsert` method\n// https://github.com/thumbsupep/proposal-upsert\nmodule.exports = function upsert(key, updateFn /* , insertFn */) {\n var map = anObject(this);\n var insertFn = arguments.length > 2 ? arguments[2] : undefined;\n var value;\n if (typeof updateFn != 'function' && typeof insertFn != 'function') {\n throw TypeError('At least one callback required');\n }\n if (map.has(key)) {\n value = map.get(key);\n if (typeof updateFn == 'function') {\n value = updateFn(value);\n map.set(key, value);\n }\n } else if (typeof insertFn == 'function') {\n value = insertFn();\n map.set(key, value);\n } return value;\n};\n","var nativeExpm1 = Math.expm1;\nvar exp = Math.exp;\n\n// `Math.expm1` method implementation\n// https://tc39.github.io/ecma262/#sec-math.expm1\nmodule.exports = (!nativeExpm1\n // Old FF bug\n || nativeExpm1(10) > 22025.465794806719 || nativeExpm1(10) < 22025.4657948067165168\n // Tor Browser bug\n || nativeExpm1(-2e-17) != -2e-17\n) ? function expm1(x) {\n return (x = +x) == 0 ? x : x > -1e-6 && x < 1e-6 ? x + x * x / 2 : exp(x) - 1;\n} : nativeExpm1;\n","var sign = require('../internals/math-sign');\n\nvar abs = Math.abs;\nvar pow = Math.pow;\nvar EPSILON = pow(2, -52);\nvar EPSILON32 = pow(2, -23);\nvar MAX32 = pow(2, 127) * (2 - EPSILON32);\nvar MIN32 = pow(2, -126);\n\nvar roundTiesToEven = function (n) {\n return n + 1 / EPSILON - 1 / EPSILON;\n};\n\n// `Math.fround` method implementation\n// https://tc39.github.io/ecma262/#sec-math.fround\nmodule.exports = Math.fround || function fround(x) {\n var $abs = abs(x);\n var $sign = sign(x);\n var a, result;\n if ($abs < MIN32) return $sign * roundTiesToEven($abs / MIN32 / EPSILON32) * MIN32 * EPSILON32;\n a = (1 + EPSILON32 / EPSILON) * $abs;\n result = a - (a - $abs);\n // eslint-disable-next-line no-self-compare\n if (result > MAX32 || result != result) return $sign * Infinity;\n return $sign * result;\n};\n","var log = Math.log;\n\n// `Math.log1p` method implementation\n// https://tc39.github.io/ecma262/#sec-math.log1p\nmodule.exports = Math.log1p || function log1p(x) {\n return (x = +x) > -1e-8 && x < 1e-8 ? x - x * x / 2 : log(1 + x);\n};\n","// `Math.scale` method implementation\n// https://rwaldron.github.io/proposal-math-extensions/\nmodule.exports = Math.scale || function scale(x, inLow, inHigh, outLow, outHigh) {\n if (\n arguments.length === 0\n /* eslint-disable no-self-compare */\n || x != x\n || inLow != inLow\n || inHigh != inHigh\n || outLow != outLow\n || outHigh != outHigh\n /* eslint-enable no-self-compare */\n ) return NaN;\n if (x === Infinity || x === -Infinity) return x;\n return (x - inLow) * (outHigh - outLow) / (inHigh - inLow) + outLow;\n};\n","// `Math.sign` method implementation\n// https://tc39.github.io/ecma262/#sec-math.sign\nmodule.exports = Math.sign || function sign(x) {\n // eslint-disable-next-line no-self-compare\n return (x = +x) == 0 || x != x ? x : x < 0 ? -1 : 1;\n};\n","var global = require('../internals/global');\nvar getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;\nvar classof = require('../internals/classof-raw');\nvar macrotask = require('../internals/task').set;\nvar IS_IOS = require('../internals/engine-is-ios');\n\nvar MutationObserver = global.MutationObserver || global.WebKitMutationObserver;\nvar process = global.process;\nvar Promise = global.Promise;\nvar IS_NODE = classof(process) == 'process';\n// Node.js 11 shows ExperimentalWarning on getting `queueMicrotask`\nvar queueMicrotaskDescriptor = getOwnPropertyDescriptor(global, 'queueMicrotask');\nvar queueMicrotask = queueMicrotaskDescriptor && queueMicrotaskDescriptor.value;\n\nvar flush, head, last, notify, toggle, node, promise, then;\n\n// modern engines have queueMicrotask method\nif (!queueMicrotask) {\n flush = function () {\n var parent, fn;\n if (IS_NODE && (parent = process.domain)) parent.exit();\n while (head) {\n fn = head.fn;\n head = head.next;\n try {\n fn();\n } catch (error) {\n if (head) notify();\n else last = undefined;\n throw error;\n }\n } last = undefined;\n if (parent) parent.enter();\n };\n\n // Node.js\n if (IS_NODE) {\n notify = function () {\n process.nextTick(flush);\n };\n // browsers with MutationObserver, except iOS - https://github.com/zloirock/core-js/issues/339\n } else if (MutationObserver && !IS_IOS) {\n toggle = true;\n node = document.createTextNode('');\n new MutationObserver(flush).observe(node, { characterData: true });\n notify = function () {\n node.data = toggle = !toggle;\n };\n // environments with maybe non-completely correct, but existent Promise\n } else if (Promise && Promise.resolve) {\n // Promise.resolve without an argument throws an error in LG WebOS 2\n promise = Promise.resolve(undefined);\n then = promise.then;\n notify = function () {\n then.call(promise, flush);\n };\n // for other environments - macrotask based on:\n // - setImmediate\n // - MessageChannel\n // - window.postMessag\n // - onreadystatechange\n // - setTimeout\n } else {\n notify = function () {\n // strange IE + webpack dev server bug - use .call(global)\n macrotask.call(global, flush);\n };\n }\n}\n\nmodule.exports = queueMicrotask || function (fn) {\n var task = { fn: fn, next: undefined };\n if (last) last.next = task;\n if (!head) {\n head = task;\n notify();\n } last = task;\n};\n","var global = require('../internals/global');\n\nmodule.exports = global.Promise;\n","var fails = require('../internals/fails');\n\nmodule.exports = !!Object.getOwnPropertySymbols && !fails(function () {\n // Chrome 38 Symbol has incorrect toString conversion\n // eslint-disable-next-line no-undef\n return !String(Symbol());\n});\n","var fails = require('../internals/fails');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar IS_PURE = require('../internals/is-pure');\n\nvar ITERATOR = wellKnownSymbol('iterator');\n\nmodule.exports = !fails(function () {\n var url = new URL('b?a=1&b=2&c=3', 'http://a');\n var searchParams = url.searchParams;\n var result = '';\n url.pathname = 'c%20d';\n searchParams.forEach(function (value, key) {\n searchParams['delete']('b');\n result += key + value;\n });\n return (IS_PURE && !url.toJSON)\n || !searchParams.sort\n || url.href !== 'http://a/c%20d?a=1&c=3'\n || searchParams.get('c') !== '3'\n || String(new URLSearchParams('?a=1')) !== 'a=1'\n || !searchParams[ITERATOR]\n // throws in Edge\n || new URL('https://a@b').username !== 'a'\n || new URLSearchParams(new URLSearchParams('a=b')).get('a') !== 'b'\n // not punycoded in Edge\n || new URL('http://тест').host !== 'xn--e1aybc'\n // not escaped in Chrome 62-\n || new URL('http://a#б').hash !== '#%D0%B1'\n // fails in Chrome 66-\n || result !== 'a1c3'\n // throws in Safari\n || new URL('http://x', undefined).host !== 'x';\n});\n","var global = require('../internals/global');\nvar inspectSource = require('../internals/inspect-source');\n\nvar WeakMap = global.WeakMap;\n\nmodule.exports = typeof WeakMap === 'function' && /native code/.test(inspectSource(WeakMap));\n","'use strict';\nvar aFunction = require('../internals/a-function');\n\nvar PromiseCapability = function (C) {\n var resolve, reject;\n this.promise = new C(function ($$resolve, $$reject) {\n if (resolve !== undefined || reject !== undefined) throw TypeError('Bad Promise constructor');\n resolve = $$resolve;\n reject = $$reject;\n });\n this.resolve = aFunction(resolve);\n this.reject = aFunction(reject);\n};\n\n// 25.4.1.5 NewPromiseCapability(C)\nmodule.exports.f = function (C) {\n return new PromiseCapability(C);\n};\n","var isRegExp = require('../internals/is-regexp');\n\nmodule.exports = function (it) {\n if (isRegExp(it)) {\n throw TypeError(\"The method doesn't accept regular expressions\");\n } return it;\n};\n","var global = require('../internals/global');\n\nvar globalIsFinite = global.isFinite;\n\n// `Number.isFinite` method\n// https://tc39.github.io/ecma262/#sec-number.isfinite\nmodule.exports = Number.isFinite || function isFinite(it) {\n return typeof it == 'number' && globalIsFinite(it);\n};\n","var global = require('../internals/global');\nvar trim = require('../internals/string-trim').trim;\nvar whitespaces = require('../internals/whitespaces');\n\nvar $parseFloat = global.parseFloat;\nvar FORCED = 1 / $parseFloat(whitespaces + '-0') !== -Infinity;\n\n// `parseFloat` method\n// https://tc39.github.io/ecma262/#sec-parsefloat-string\nmodule.exports = FORCED ? function parseFloat(string) {\n var trimmedString = trim(String(string));\n var result = $parseFloat(trimmedString);\n return result === 0 && trimmedString.charAt(0) == '-' ? -0 : result;\n} : $parseFloat;\n","var global = require('../internals/global');\nvar trim = require('../internals/string-trim').trim;\nvar whitespaces = require('../internals/whitespaces');\n\nvar $parseInt = global.parseInt;\nvar hex = /^[+-]?0[Xx]/;\nvar FORCED = $parseInt(whitespaces + '08') !== 8 || $parseInt(whitespaces + '0x16') !== 22;\n\n// `parseInt` method\n// https://tc39.github.io/ecma262/#sec-parseint-string-radix\nmodule.exports = FORCED ? function parseInt(string, radix) {\n var S = trim(String(string));\n return $parseInt(S, (radix >>> 0) || (hex.test(S) ? 16 : 10));\n} : $parseInt;\n","'use strict';\nvar DESCRIPTORS = require('../internals/descriptors');\nvar fails = require('../internals/fails');\nvar objectKeys = require('../internals/object-keys');\nvar getOwnPropertySymbolsModule = require('../internals/object-get-own-property-symbols');\nvar propertyIsEnumerableModule = require('../internals/object-property-is-enumerable');\nvar toObject = require('../internals/to-object');\nvar IndexedObject = require('../internals/indexed-object');\n\nvar nativeAssign = Object.assign;\nvar defineProperty = Object.defineProperty;\n\n// `Object.assign` method\n// https://tc39.github.io/ecma262/#sec-object.assign\nmodule.exports = !nativeAssign || fails(function () {\n // should have correct order of operations (Edge bug)\n if (DESCRIPTORS && nativeAssign({ b: 1 }, nativeAssign(defineProperty({}, 'a', {\n enumerable: true,\n get: function () {\n defineProperty(this, 'b', {\n value: 3,\n enumerable: false\n });\n }\n }), { b: 2 })).b !== 1) return true;\n // should work with symbols and should have deterministic property order (V8 bug)\n var A = {};\n var B = {};\n // eslint-disable-next-line no-undef\n var symbol = Symbol();\n var alphabet = 'abcdefghijklmnopqrst';\n A[symbol] = 7;\n alphabet.split('').forEach(function (chr) { B[chr] = chr; });\n return nativeAssign({}, A)[symbol] != 7 || objectKeys(nativeAssign({}, B)).join('') != alphabet;\n}) ? function assign(target, source) { // eslint-disable-line no-unused-vars\n var T = toObject(target);\n var argumentsLength = arguments.length;\n var index = 1;\n var getOwnPropertySymbols = getOwnPropertySymbolsModule.f;\n var propertyIsEnumerable = propertyIsEnumerableModule.f;\n while (argumentsLength > index) {\n var S = IndexedObject(arguments[index++]);\n var keys = getOwnPropertySymbols ? objectKeys(S).concat(getOwnPropertySymbols(S)) : objectKeys(S);\n var length = keys.length;\n var j = 0;\n var key;\n while (length > j) {\n key = keys[j++];\n if (!DESCRIPTORS || propertyIsEnumerable.call(S, key)) T[key] = S[key];\n }\n } return T;\n} : nativeAssign;\n","var anObject = require('../internals/an-object');\nvar defineProperties = require('../internals/object-define-properties');\nvar enumBugKeys = require('../internals/enum-bug-keys');\nvar hiddenKeys = require('../internals/hidden-keys');\nvar html = require('../internals/html');\nvar documentCreateElement = require('../internals/document-create-element');\nvar sharedKey = require('../internals/shared-key');\n\nvar GT = '>';\nvar LT = '<';\nvar PROTOTYPE = 'prototype';\nvar SCRIPT = 'script';\nvar IE_PROTO = sharedKey('IE_PROTO');\n\nvar EmptyConstructor = function () { /* empty */ };\n\nvar scriptTag = function (content) {\n return LT + SCRIPT + GT + content + LT + '/' + SCRIPT + GT;\n};\n\n// Create object with fake `null` prototype: use ActiveX Object with cleared prototype\nvar NullProtoObjectViaActiveX = function (activeXDocument) {\n activeXDocument.write(scriptTag(''));\n activeXDocument.close();\n var temp = activeXDocument.parentWindow.Object;\n activeXDocument = null; // avoid memory leak\n return temp;\n};\n\n// Create object with fake `null` prototype: use iframe Object with cleared prototype\nvar NullProtoObjectViaIFrame = function () {\n // Thrash, waste and sodomy: IE GC bug\n var iframe = documentCreateElement('iframe');\n var JS = 'java' + SCRIPT + ':';\n var iframeDocument;\n iframe.style.display = 'none';\n html.appendChild(iframe);\n // https://github.com/zloirock/core-js/issues/475\n iframe.src = String(JS);\n iframeDocument = iframe.contentWindow.document;\n iframeDocument.open();\n iframeDocument.write(scriptTag('document.F=Object'));\n iframeDocument.close();\n return iframeDocument.F;\n};\n\n// Check for document.domain and active x support\n// No need to use active x approach when document.domain is not set\n// see https://github.com/es-shims/es5-shim/issues/150\n// variation of https://github.com/kitcambridge/es5-shim/commit/4f738ac066346\n// avoid IE GC bug\nvar activeXDocument;\nvar NullProtoObject = function () {\n try {\n /* global ActiveXObject */\n activeXDocument = document.domain && new ActiveXObject('htmlfile');\n } catch (error) { /* ignore */ }\n NullProtoObject = activeXDocument ? NullProtoObjectViaActiveX(activeXDocument) : NullProtoObjectViaIFrame();\n var length = enumBugKeys.length;\n while (length--) delete NullProtoObject[PROTOTYPE][enumBugKeys[length]];\n return NullProtoObject();\n};\n\nhiddenKeys[IE_PROTO] = true;\n\n// `Object.create` method\n// https://tc39.github.io/ecma262/#sec-object.create\nmodule.exports = Object.create || function create(O, Properties) {\n var result;\n if (O !== null) {\n EmptyConstructor[PROTOTYPE] = anObject(O);\n result = new EmptyConstructor();\n EmptyConstructor[PROTOTYPE] = null;\n // add \"__proto__\" for Object.getPrototypeOf polyfill\n result[IE_PROTO] = O;\n } else result = NullProtoObject();\n return Properties === undefined ? result : defineProperties(result, Properties);\n};\n","var DESCRIPTORS = require('../internals/descriptors');\nvar definePropertyModule = require('../internals/object-define-property');\nvar anObject = require('../internals/an-object');\nvar objectKeys = require('../internals/object-keys');\n\n// `Object.defineProperties` method\n// https://tc39.github.io/ecma262/#sec-object.defineproperties\nmodule.exports = DESCRIPTORS ? Object.defineProperties : function defineProperties(O, Properties) {\n anObject(O);\n var keys = objectKeys(Properties);\n var length = keys.length;\n var index = 0;\n var key;\n while (length > index) definePropertyModule.f(O, key = keys[index++], Properties[key]);\n return O;\n};\n","var DESCRIPTORS = require('../internals/descriptors');\nvar IE8_DOM_DEFINE = require('../internals/ie8-dom-define');\nvar anObject = require('../internals/an-object');\nvar toPrimitive = require('../internals/to-primitive');\n\nvar nativeDefineProperty = Object.defineProperty;\n\n// `Object.defineProperty` method\n// https://tc39.github.io/ecma262/#sec-object.defineproperty\nexports.f = DESCRIPTORS ? nativeDefineProperty : function defineProperty(O, P, Attributes) {\n anObject(O);\n P = toPrimitive(P, true);\n anObject(Attributes);\n if (IE8_DOM_DEFINE) try {\n return nativeDefineProperty(O, P, Attributes);\n } catch (error) { /* empty */ }\n if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported');\n if ('value' in Attributes) O[P] = Attributes.value;\n return O;\n};\n","var DESCRIPTORS = require('../internals/descriptors');\nvar propertyIsEnumerableModule = require('../internals/object-property-is-enumerable');\nvar createPropertyDescriptor = require('../internals/create-property-descriptor');\nvar toIndexedObject = require('../internals/to-indexed-object');\nvar toPrimitive = require('../internals/to-primitive');\nvar has = require('../internals/has');\nvar IE8_DOM_DEFINE = require('../internals/ie8-dom-define');\n\nvar nativeGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;\n\n// `Object.getOwnPropertyDescriptor` method\n// https://tc39.github.io/ecma262/#sec-object.getownpropertydescriptor\nexports.f = DESCRIPTORS ? nativeGetOwnPropertyDescriptor : function getOwnPropertyDescriptor(O, P) {\n O = toIndexedObject(O);\n P = toPrimitive(P, true);\n if (IE8_DOM_DEFINE) try {\n return nativeGetOwnPropertyDescriptor(O, P);\n } catch (error) { /* empty */ }\n if (has(O, P)) return createPropertyDescriptor(!propertyIsEnumerableModule.f.call(O, P), O[P]);\n};\n","var toIndexedObject = require('../internals/to-indexed-object');\nvar nativeGetOwnPropertyNames = require('../internals/object-get-own-property-names').f;\n\nvar toString = {}.toString;\n\nvar windowNames = typeof window == 'object' && window && Object.getOwnPropertyNames\n ? Object.getOwnPropertyNames(window) : [];\n\nvar getWindowNames = function (it) {\n try {\n return nativeGetOwnPropertyNames(it);\n } catch (error) {\n return windowNames.slice();\n }\n};\n\n// fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window\nmodule.exports.f = function getOwnPropertyNames(it) {\n return windowNames && toString.call(it) == '[object Window]'\n ? getWindowNames(it)\n : nativeGetOwnPropertyNames(toIndexedObject(it));\n};\n","var internalObjectKeys = require('../internals/object-keys-internal');\nvar enumBugKeys = require('../internals/enum-bug-keys');\n\nvar hiddenKeys = enumBugKeys.concat('length', 'prototype');\n\n// `Object.getOwnPropertyNames` method\n// https://tc39.github.io/ecma262/#sec-object.getownpropertynames\nexports.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {\n return internalObjectKeys(O, hiddenKeys);\n};\n","exports.f = Object.getOwnPropertySymbols;\n","var has = require('../internals/has');\nvar toObject = require('../internals/to-object');\nvar sharedKey = require('../internals/shared-key');\nvar CORRECT_PROTOTYPE_GETTER = require('../internals/correct-prototype-getter');\n\nvar IE_PROTO = sharedKey('IE_PROTO');\nvar ObjectPrototype = Object.prototype;\n\n// `Object.getPrototypeOf` method\n// https://tc39.github.io/ecma262/#sec-object.getprototypeof\nmodule.exports = CORRECT_PROTOTYPE_GETTER ? Object.getPrototypeOf : function (O) {\n O = toObject(O);\n if (has(O, IE_PROTO)) return O[IE_PROTO];\n if (typeof O.constructor == 'function' && O instanceof O.constructor) {\n return O.constructor.prototype;\n } return O instanceof Object ? ObjectPrototype : null;\n};\n","'use strict';\nvar InternalStateModule = require('../internals/internal-state');\nvar createIteratorConstructor = require('../internals/create-iterator-constructor');\nvar has = require('../internals/has');\nvar objectKeys = require('../internals/object-keys');\nvar toObject = require('../internals/to-object');\n\nvar OBJECT_ITERATOR = 'Object Iterator';\nvar setInternalState = InternalStateModule.set;\nvar getInternalState = InternalStateModule.getterFor(OBJECT_ITERATOR);\n\nmodule.exports = createIteratorConstructor(function ObjectIterator(source, mode) {\n var object = toObject(source);\n setInternalState(this, {\n type: OBJECT_ITERATOR,\n mode: mode,\n object: object,\n keys: objectKeys(object),\n index: 0\n });\n}, 'Object', function next() {\n var state = getInternalState(this);\n var keys = state.keys;\n while (true) {\n if (keys === null || state.index >= keys.length) {\n state.object = state.keys = null;\n return { value: undefined, done: true };\n }\n var key = keys[state.index++];\n var object = state.object;\n if (!has(object, key)) continue;\n switch (state.mode) {\n case 'keys': return { value: key, done: false };\n case 'values': return { value: object[key], done: false };\n } /* entries */ return { value: [key, object[key]], done: false };\n }\n});\n","var has = require('../internals/has');\nvar toIndexedObject = require('../internals/to-indexed-object');\nvar indexOf = require('../internals/array-includes').indexOf;\nvar hiddenKeys = require('../internals/hidden-keys');\n\nmodule.exports = function (object, names) {\n var O = toIndexedObject(object);\n var i = 0;\n var result = [];\n var key;\n for (key in O) !has(hiddenKeys, key) && has(O, key) && result.push(key);\n // Don't enum bug & hidden keys\n while (names.length > i) if (has(O, key = names[i++])) {\n ~indexOf(result, key) || result.push(key);\n }\n return result;\n};\n","var internalObjectKeys = require('../internals/object-keys-internal');\nvar enumBugKeys = require('../internals/enum-bug-keys');\n\n// `Object.keys` method\n// https://tc39.github.io/ecma262/#sec-object.keys\nmodule.exports = Object.keys || function keys(O) {\n return internalObjectKeys(O, enumBugKeys);\n};\n","'use strict';\nvar nativePropertyIsEnumerable = {}.propertyIsEnumerable;\nvar getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;\n\n// Nashorn ~ JDK8 bug\nvar NASHORN_BUG = getOwnPropertyDescriptor && !nativePropertyIsEnumerable.call({ 1: 2 }, 1);\n\n// `Object.prototype.propertyIsEnumerable` method implementation\n// https://tc39.github.io/ecma262/#sec-object.prototype.propertyisenumerable\nexports.f = NASHORN_BUG ? function propertyIsEnumerable(V) {\n var descriptor = getOwnPropertyDescriptor(this, V);\n return !!descriptor && descriptor.enumerable;\n} : nativePropertyIsEnumerable;\n","'use strict';\nvar IS_PURE = require('../internals/is-pure');\nvar global = require('../internals/global');\nvar fails = require('../internals/fails');\n\n// Forced replacement object prototype accessors methods\nmodule.exports = IS_PURE || !fails(function () {\n var key = Math.random();\n // In FF throws only define methods\n // eslint-disable-next-line no-undef, no-useless-call\n __defineSetter__.call(null, key, function () { /* empty */ });\n delete global[key];\n});\n","var anObject = require('../internals/an-object');\nvar aPossiblePrototype = require('../internals/a-possible-prototype');\n\n// `Object.setPrototypeOf` method\n// https://tc39.github.io/ecma262/#sec-object.setprototypeof\n// Works with __proto__ only. Old v8 can't work with null proto objects.\n/* eslint-disable no-proto */\nmodule.exports = Object.setPrototypeOf || ('__proto__' in {} ? function () {\n var CORRECT_SETTER = false;\n var test = {};\n var setter;\n try {\n setter = Object.getOwnPropertyDescriptor(Object.prototype, '__proto__').set;\n setter.call(test, []);\n CORRECT_SETTER = test instanceof Array;\n } catch (error) { /* empty */ }\n return function setPrototypeOf(O, proto) {\n anObject(O);\n aPossiblePrototype(proto);\n if (CORRECT_SETTER) setter.call(O, proto);\n else O.__proto__ = proto;\n return O;\n };\n}() : undefined);\n","var DESCRIPTORS = require('../internals/descriptors');\nvar objectKeys = require('../internals/object-keys');\nvar toIndexedObject = require('../internals/to-indexed-object');\nvar propertyIsEnumerable = require('../internals/object-property-is-enumerable').f;\n\n// `Object.{ entries, values }` methods implementation\nvar createMethod = function (TO_ENTRIES) {\n return function (it) {\n var O = toIndexedObject(it);\n var keys = objectKeys(O);\n var length = keys.length;\n var i = 0;\n var result = [];\n var key;\n while (length > i) {\n key = keys[i++];\n if (!DESCRIPTORS || propertyIsEnumerable.call(O, key)) {\n result.push(TO_ENTRIES ? [key, O[key]] : O[key]);\n }\n }\n return result;\n };\n};\n\nmodule.exports = {\n // `Object.entries` method\n // https://tc39.github.io/ecma262/#sec-object.entries\n entries: createMethod(true),\n // `Object.values` method\n // https://tc39.github.io/ecma262/#sec-object.values\n values: createMethod(false)\n};\n","'use strict';\nvar TO_STRING_TAG_SUPPORT = require('../internals/to-string-tag-support');\nvar classof = require('../internals/classof');\n\n// `Object.prototype.toString` method implementation\n// https://tc39.github.io/ecma262/#sec-object.prototype.tostring\nmodule.exports = TO_STRING_TAG_SUPPORT ? {}.toString : function toString() {\n return '[object ' + classof(this) + ']';\n};\n","var getBuiltIn = require('../internals/get-built-in');\nvar getOwnPropertyNamesModule = require('../internals/object-get-own-property-names');\nvar getOwnPropertySymbolsModule = require('../internals/object-get-own-property-symbols');\nvar anObject = require('../internals/an-object');\n\n// all object keys, includes non-enumerable and symbols\nmodule.exports = getBuiltIn('Reflect', 'ownKeys') || function ownKeys(it) {\n var keys = getOwnPropertyNamesModule.f(anObject(it));\n var getOwnPropertySymbols = getOwnPropertySymbolsModule.f;\n return getOwnPropertySymbols ? keys.concat(getOwnPropertySymbols(it)) : keys;\n};\n","var global = require('../internals/global');\n\nmodule.exports = global;\n","module.exports = function (exec) {\n try {\n return { error: false, value: exec() };\n } catch (error) {\n return { error: true, value: error };\n }\n};\n","var anObject = require('../internals/an-object');\nvar isObject = require('../internals/is-object');\nvar newPromiseCapability = require('../internals/new-promise-capability');\n\nmodule.exports = function (C, x) {\n anObject(C);\n if (isObject(x) && x.constructor === C) return x;\n var promiseCapability = newPromiseCapability.f(C);\n var resolve = promiseCapability.resolve;\n resolve(x);\n return promiseCapability.promise;\n};\n","var redefine = require('../internals/redefine');\n\nmodule.exports = function (target, src, options) {\n for (var key in src) redefine(target, key, src[key], options);\n return target;\n};\n","var global = require('../internals/global');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar has = require('../internals/has');\nvar setGlobal = require('../internals/set-global');\nvar inspectSource = require('../internals/inspect-source');\nvar InternalStateModule = require('../internals/internal-state');\n\nvar getInternalState = InternalStateModule.get;\nvar enforceInternalState = InternalStateModule.enforce;\nvar TEMPLATE = String(String).split('String');\n\n(module.exports = function (O, key, value, options) {\n var unsafe = options ? !!options.unsafe : false;\n var simple = options ? !!options.enumerable : false;\n var noTargetGet = options ? !!options.noTargetGet : false;\n if (typeof value == 'function') {\n if (typeof key == 'string' && !has(value, 'name')) createNonEnumerableProperty(value, 'name', key);\n enforceInternalState(value).source = TEMPLATE.join(typeof key == 'string' ? key : '');\n }\n if (O === global) {\n if (simple) O[key] = value;\n else setGlobal(key, value);\n return;\n } else if (!unsafe) {\n delete O[key];\n } else if (!noTargetGet && O[key]) {\n simple = true;\n }\n if (simple) O[key] = value;\n else createNonEnumerableProperty(O, key, value);\n// add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative\n})(Function.prototype, 'toString', function toString() {\n return typeof this == 'function' && getInternalState(this).source || inspectSource(this);\n});\n","// TODO: in core-js@4, move /modules/ dependencies to public entries for better optimization by tools like `preset-env`\nvar Map = require('../modules/es.map');\nvar WeakMap = require('../modules/es.weak-map');\nvar shared = require('../internals/shared');\n\nvar metadata = shared('metadata');\nvar store = metadata.store || (metadata.store = new WeakMap());\n\nvar getOrCreateMetadataMap = function (target, targetKey, create) {\n var targetMetadata = store.get(target);\n if (!targetMetadata) {\n if (!create) return;\n store.set(target, targetMetadata = new Map());\n }\n var keyMetadata = targetMetadata.get(targetKey);\n if (!keyMetadata) {\n if (!create) return;\n targetMetadata.set(targetKey, keyMetadata = new Map());\n } return keyMetadata;\n};\n\nvar ordinaryHasOwnMetadata = function (MetadataKey, O, P) {\n var metadataMap = getOrCreateMetadataMap(O, P, false);\n return metadataMap === undefined ? false : metadataMap.has(MetadataKey);\n};\n\nvar ordinaryGetOwnMetadata = function (MetadataKey, O, P) {\n var metadataMap = getOrCreateMetadataMap(O, P, false);\n return metadataMap === undefined ? undefined : metadataMap.get(MetadataKey);\n};\n\nvar ordinaryDefineOwnMetadata = function (MetadataKey, MetadataValue, O, P) {\n getOrCreateMetadataMap(O, P, true).set(MetadataKey, MetadataValue);\n};\n\nvar ordinaryOwnMetadataKeys = function (target, targetKey) {\n var metadataMap = getOrCreateMetadataMap(target, targetKey, false);\n var keys = [];\n if (metadataMap) metadataMap.forEach(function (_, key) { keys.push(key); });\n return keys;\n};\n\nvar toMetadataKey = function (it) {\n return it === undefined || typeof it == 'symbol' ? it : String(it);\n};\n\nmodule.exports = {\n store: store,\n getMap: getOrCreateMetadataMap,\n has: ordinaryHasOwnMetadata,\n get: ordinaryGetOwnMetadata,\n set: ordinaryDefineOwnMetadata,\n keys: ordinaryOwnMetadataKeys,\n toKey: toMetadataKey\n};\n","var classof = require('./classof-raw');\nvar regexpExec = require('./regexp-exec');\n\n// `RegExpExec` abstract operation\n// https://tc39.github.io/ecma262/#sec-regexpexec\nmodule.exports = function (R, S) {\n var exec = R.exec;\n if (typeof exec === 'function') {\n var result = exec.call(R, S);\n if (typeof result !== 'object') {\n throw TypeError('RegExp exec method returned something other than an Object or null');\n }\n return result;\n }\n\n if (classof(R) !== 'RegExp') {\n throw TypeError('RegExp#exec called on incompatible receiver');\n }\n\n return regexpExec.call(R, S);\n};\n\n","'use strict';\nvar regexpFlags = require('./regexp-flags');\nvar stickyHelpers = require('./regexp-sticky-helpers');\n\nvar nativeExec = RegExp.prototype.exec;\n// This always refers to the native implementation, because the\n// String#replace polyfill uses ./fix-regexp-well-known-symbol-logic.js,\n// which loads this file before patching the method.\nvar nativeReplace = String.prototype.replace;\n\nvar patchedExec = nativeExec;\n\nvar UPDATES_LAST_INDEX_WRONG = (function () {\n var re1 = /a/;\n var re2 = /b*/g;\n nativeExec.call(re1, 'a');\n nativeExec.call(re2, 'a');\n return re1.lastIndex !== 0 || re2.lastIndex !== 0;\n})();\n\nvar UNSUPPORTED_Y = stickyHelpers.UNSUPPORTED_Y || stickyHelpers.BROKEN_CARET;\n\n// nonparticipating capturing group, copied from es5-shim's String#split patch.\nvar NPCG_INCLUDED = /()??/.exec('')[1] !== undefined;\n\nvar PATCH = UPDATES_LAST_INDEX_WRONG || NPCG_INCLUDED || UNSUPPORTED_Y;\n\nif (PATCH) {\n patchedExec = function exec(str) {\n var re = this;\n var lastIndex, reCopy, match, i;\n var sticky = UNSUPPORTED_Y && re.sticky;\n var flags = regexpFlags.call(re);\n var source = re.source;\n var charsAdded = 0;\n var strCopy = str;\n\n if (sticky) {\n flags = flags.replace('y', '');\n if (flags.indexOf('g') === -1) {\n flags += 'g';\n }\n\n strCopy = String(str).slice(re.lastIndex);\n // Support anchored sticky behavior.\n if (re.lastIndex > 0 && (!re.multiline || re.multiline && str[re.lastIndex - 1] !== '\\n')) {\n source = '(?: ' + source + ')';\n strCopy = ' ' + strCopy;\n charsAdded++;\n }\n // ^(? + rx + ) is needed, in combination with some str slicing, to\n // simulate the 'y' flag.\n reCopy = new RegExp('^(?:' + source + ')', flags);\n }\n\n if (NPCG_INCLUDED) {\n reCopy = new RegExp('^' + source + '$(?!\\\\s)', flags);\n }\n if (UPDATES_LAST_INDEX_WRONG) lastIndex = re.lastIndex;\n\n match = nativeExec.call(sticky ? reCopy : re, strCopy);\n\n if (sticky) {\n if (match) {\n match.input = match.input.slice(charsAdded);\n match[0] = match[0].slice(charsAdded);\n match.index = re.lastIndex;\n re.lastIndex += match[0].length;\n } else re.lastIndex = 0;\n } else if (UPDATES_LAST_INDEX_WRONG && match) {\n re.lastIndex = re.global ? match.index + match[0].length : lastIndex;\n }\n if (NPCG_INCLUDED && match && match.length > 1) {\n // Fix browsers whose `exec` methods don't consistently return `undefined`\n // for NPCG, like IE8. NOTE: This doesn' work for /(.?)?/\n nativeReplace.call(match[0], reCopy, function () {\n for (i = 1; i < arguments.length - 2; i++) {\n if (arguments[i] === undefined) match[i] = undefined;\n }\n });\n }\n\n return match;\n };\n}\n\nmodule.exports = patchedExec;\n","'use strict';\nvar anObject = require('../internals/an-object');\n\n// `RegExp.prototype.flags` getter implementation\n// https://tc39.github.io/ecma262/#sec-get-regexp.prototype.flags\nmodule.exports = function () {\n var that = anObject(this);\n var result = '';\n if (that.global) result += 'g';\n if (that.ignoreCase) result += 'i';\n if (that.multiline) result += 'm';\n if (that.dotAll) result += 's';\n if (that.unicode) result += 'u';\n if (that.sticky) result += 'y';\n return result;\n};\n","'use strict';\n\nvar fails = require('./fails');\n\n// babel-minify transpiles RegExp('a', 'y') -> /a/y and it causes SyntaxError,\n// so we use an intermediate function.\nfunction RE(s, f) {\n return RegExp(s, f);\n}\n\nexports.UNSUPPORTED_Y = fails(function () {\n // babel-minify transpiles RegExp('a', 'y') -> /a/y and it causes SyntaxError\n var re = RE('a', 'y');\n re.lastIndex = 2;\n return re.exec('abcd') != null;\n});\n\nexports.BROKEN_CARET = fails(function () {\n // https://bugzilla.mozilla.org/show_bug.cgi?id=773687\n var re = RE('^r', 'gy');\n re.lastIndex = 2;\n return re.exec('str') != null;\n});\n","// `RequireObjectCoercible` abstract operation\n// https://tc39.github.io/ecma262/#sec-requireobjectcoercible\nmodule.exports = function (it) {\n if (it == undefined) throw TypeError(\"Can't call method on \" + it);\n return it;\n};\n","// `SameValueZero` abstract operation\n// https://tc39.github.io/ecma262/#sec-samevaluezero\nmodule.exports = function (x, y) {\n // eslint-disable-next-line no-self-compare\n return x === y || x != x && y != y;\n};\n","// `SameValue` abstract operation\n// https://tc39.github.io/ecma262/#sec-samevalue\nmodule.exports = Object.is || function is(x, y) {\n // eslint-disable-next-line no-self-compare\n return x === y ? x !== 0 || 1 / x === 1 / y : x != x && y != y;\n};\n","var global = require('../internals/global');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\n\nmodule.exports = function (key, value) {\n try {\n createNonEnumerableProperty(global, key, value);\n } catch (error) {\n global[key] = value;\n } return value;\n};\n","'use strict';\nvar getBuiltIn = require('../internals/get-built-in');\nvar definePropertyModule = require('../internals/object-define-property');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar DESCRIPTORS = require('../internals/descriptors');\n\nvar SPECIES = wellKnownSymbol('species');\n\nmodule.exports = function (CONSTRUCTOR_NAME) {\n var Constructor = getBuiltIn(CONSTRUCTOR_NAME);\n var defineProperty = definePropertyModule.f;\n\n if (DESCRIPTORS && Constructor && !Constructor[SPECIES]) {\n defineProperty(Constructor, SPECIES, {\n configurable: true,\n get: function () { return this; }\n });\n }\n};\n","var defineProperty = require('../internals/object-define-property').f;\nvar has = require('../internals/has');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar TO_STRING_TAG = wellKnownSymbol('toStringTag');\n\nmodule.exports = function (it, TAG, STATIC) {\n if (it && !has(it = STATIC ? it : it.prototype, TO_STRING_TAG)) {\n defineProperty(it, TO_STRING_TAG, { configurable: true, value: TAG });\n }\n};\n","var shared = require('../internals/shared');\nvar uid = require('../internals/uid');\n\nvar keys = shared('keys');\n\nmodule.exports = function (key) {\n return keys[key] || (keys[key] = uid(key));\n};\n","var global = require('../internals/global');\nvar setGlobal = require('../internals/set-global');\n\nvar SHARED = '__core-js_shared__';\nvar store = global[SHARED] || setGlobal(SHARED, {});\n\nmodule.exports = store;\n","var IS_PURE = require('../internals/is-pure');\nvar store = require('../internals/shared-store');\n\n(module.exports = function (key, value) {\n return store[key] || (store[key] = value !== undefined ? value : {});\n})('versions', []).push({\n version: '3.6.5',\n mode: IS_PURE ? 'pure' : 'global',\n copyright: '© 2020 Denis Pushkarev (zloirock.ru)'\n});\n","var anObject = require('../internals/an-object');\nvar aFunction = require('../internals/a-function');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar SPECIES = wellKnownSymbol('species');\n\n// `SpeciesConstructor` abstract operation\n// https://tc39.github.io/ecma262/#sec-speciesconstructor\nmodule.exports = function (O, defaultConstructor) {\n var C = anObject(O).constructor;\n var S;\n return C === undefined || (S = anObject(C)[SPECIES]) == undefined ? defaultConstructor : aFunction(S);\n};\n","var fails = require('../internals/fails');\n\n// check the existence of a method, lowercase\n// of a tag and escaping quotes in arguments\nmodule.exports = function (METHOD_NAME) {\n return fails(function () {\n var test = ''[METHOD_NAME]('\"');\n return test !== test.toLowerCase() || test.split('\"').length > 3;\n });\n};\n","var toInteger = require('../internals/to-integer');\nvar requireObjectCoercible = require('../internals/require-object-coercible');\n\n// `String.prototype.{ codePointAt, at }` methods implementation\nvar createMethod = function (CONVERT_TO_STRING) {\n return function ($this, pos) {\n var S = String(requireObjectCoercible($this));\n var position = toInteger(pos);\n var size = S.length;\n var first, second;\n if (position < 0 || position >= size) return CONVERT_TO_STRING ? '' : undefined;\n first = S.charCodeAt(position);\n return first < 0xD800 || first > 0xDBFF || position + 1 === size\n || (second = S.charCodeAt(position + 1)) < 0xDC00 || second > 0xDFFF\n ? CONVERT_TO_STRING ? S.charAt(position) : first\n : CONVERT_TO_STRING ? S.slice(position, position + 2) : (first - 0xD800 << 10) + (second - 0xDC00) + 0x10000;\n };\n};\n\nmodule.exports = {\n // `String.prototype.codePointAt` method\n // https://tc39.github.io/ecma262/#sec-string.prototype.codepointat\n codeAt: createMethod(false),\n // `String.prototype.at` method\n // https://github.com/mathiasbynens/String.prototype.at\n charAt: createMethod(true)\n};\n","// https://github.com/zloirock/core-js/issues/280\nvar userAgent = require('../internals/engine-user-agent');\n\n// eslint-disable-next-line unicorn/no-unsafe-regex\nmodule.exports = /Version\\/10\\.\\d+(\\.\\d+)?( Mobile\\/\\w+)? Safari\\//.test(userAgent);\n","// https://github.com/tc39/proposal-string-pad-start-end\nvar toLength = require('../internals/to-length');\nvar repeat = require('../internals/string-repeat');\nvar requireObjectCoercible = require('../internals/require-object-coercible');\n\nvar ceil = Math.ceil;\n\n// `String.prototype.{ padStart, padEnd }` methods implementation\nvar createMethod = function (IS_END) {\n return function ($this, maxLength, fillString) {\n var S = String(requireObjectCoercible($this));\n var stringLength = S.length;\n var fillStr = fillString === undefined ? ' ' : String(fillString);\n var intMaxLength = toLength(maxLength);\n var fillLen, stringFiller;\n if (intMaxLength <= stringLength || fillStr == '') return S;\n fillLen = intMaxLength - stringLength;\n stringFiller = repeat.call(fillStr, ceil(fillLen / fillStr.length));\n if (stringFiller.length > fillLen) stringFiller = stringFiller.slice(0, fillLen);\n return IS_END ? S + stringFiller : stringFiller + S;\n };\n};\n\nmodule.exports = {\n // `String.prototype.padStart` method\n // https://tc39.github.io/ecma262/#sec-string.prototype.padstart\n start: createMethod(false),\n // `String.prototype.padEnd` method\n // https://tc39.github.io/ecma262/#sec-string.prototype.padend\n end: createMethod(true)\n};\n","'use strict';\n// based on https://github.com/bestiejs/punycode.js/blob/master/punycode.js\nvar maxInt = 2147483647; // aka. 0x7FFFFFFF or 2^31-1\nvar base = 36;\nvar tMin = 1;\nvar tMax = 26;\nvar skew = 38;\nvar damp = 700;\nvar initialBias = 72;\nvar initialN = 128; // 0x80\nvar delimiter = '-'; // '\\x2D'\nvar regexNonASCII = /[^\\0-\\u007E]/; // non-ASCII chars\nvar regexSeparators = /[.\\u3002\\uFF0E\\uFF61]/g; // RFC 3490 separators\nvar OVERFLOW_ERROR = 'Overflow: input needs wider integers to process';\nvar baseMinusTMin = base - tMin;\nvar floor = Math.floor;\nvar stringFromCharCode = String.fromCharCode;\n\n/**\n * Creates an array containing the numeric code points of each Unicode\n * character in the string. While JavaScript uses UCS-2 internally,\n * this function will convert a pair of surrogate halves (each of which\n * UCS-2 exposes as separate characters) into a single code point,\n * matching UTF-16.\n */\nvar ucs2decode = function (string) {\n var output = [];\n var counter = 0;\n var length = string.length;\n while (counter < length) {\n var value = string.charCodeAt(counter++);\n if (value >= 0xD800 && value <= 0xDBFF && counter < length) {\n // It's a high surrogate, and there is a next character.\n var extra = string.charCodeAt(counter++);\n if ((extra & 0xFC00) == 0xDC00) { // Low surrogate.\n output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);\n } else {\n // It's an unmatched surrogate; only append this code unit, in case the\n // next code unit is the high surrogate of a surrogate pair.\n output.push(value);\n counter--;\n }\n } else {\n output.push(value);\n }\n }\n return output;\n};\n\n/**\n * Converts a digit/integer into a basic code point.\n */\nvar digitToBasic = function (digit) {\n // 0..25 map to ASCII a..z or A..Z\n // 26..35 map to ASCII 0..9\n return digit + 22 + 75 * (digit < 26);\n};\n\n/**\n * Bias adaptation function as per section 3.4 of RFC 3492.\n * https://tools.ietf.org/html/rfc3492#section-3.4\n */\nvar adapt = function (delta, numPoints, firstTime) {\n var k = 0;\n delta = firstTime ? floor(delta / damp) : delta >> 1;\n delta += floor(delta / numPoints);\n for (; delta > baseMinusTMin * tMax >> 1; k += base) {\n delta = floor(delta / baseMinusTMin);\n }\n return floor(k + (baseMinusTMin + 1) * delta / (delta + skew));\n};\n\n/**\n * Converts a string of Unicode symbols (e.g. a domain name label) to a\n * Punycode string of ASCII-only symbols.\n */\n// eslint-disable-next-line max-statements\nvar encode = function (input) {\n var output = [];\n\n // Convert the input in UCS-2 to an array of Unicode code points.\n input = ucs2decode(input);\n\n // Cache the length.\n var inputLength = input.length;\n\n // Initialize the state.\n var n = initialN;\n var delta = 0;\n var bias = initialBias;\n var i, currentValue;\n\n // Handle the basic code points.\n for (i = 0; i < input.length; i++) {\n currentValue = input[i];\n if (currentValue < 0x80) {\n output.push(stringFromCharCode(currentValue));\n }\n }\n\n var basicLength = output.length; // number of basic code points.\n var handledCPCount = basicLength; // number of code points that have been handled;\n\n // Finish the basic string with a delimiter unless it's empty.\n if (basicLength) {\n output.push(delimiter);\n }\n\n // Main encoding loop:\n while (handledCPCount < inputLength) {\n // All non-basic code points < n have been handled already. Find the next larger one:\n var m = maxInt;\n for (i = 0; i < input.length; i++) {\n currentValue = input[i];\n if (currentValue >= n && currentValue < m) {\n m = currentValue;\n }\n }\n\n // Increase `delta` enough to advance the decoder's state to , but guard against overflow.\n var handledCPCountPlusOne = handledCPCount + 1;\n if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {\n throw RangeError(OVERFLOW_ERROR);\n }\n\n delta += (m - n) * handledCPCountPlusOne;\n n = m;\n\n for (i = 0; i < input.length; i++) {\n currentValue = input[i];\n if (currentValue < n && ++delta > maxInt) {\n throw RangeError(OVERFLOW_ERROR);\n }\n if (currentValue == n) {\n // Represent delta as a generalized variable-length integer.\n var q = delta;\n for (var k = base; /* no condition */; k += base) {\n var t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);\n if (q < t) break;\n var qMinusT = q - t;\n var baseMinusT = base - t;\n output.push(stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT)));\n q = floor(qMinusT / baseMinusT);\n }\n\n output.push(stringFromCharCode(digitToBasic(q)));\n bias = adapt(delta, handledCPCountPlusOne, handledCPCount == basicLength);\n delta = 0;\n ++handledCPCount;\n }\n }\n\n ++delta;\n ++n;\n }\n return output.join('');\n};\n\nmodule.exports = function (input) {\n var encoded = [];\n var labels = input.toLowerCase().replace(regexSeparators, '\\u002E').split('.');\n var i, label;\n for (i = 0; i < labels.length; i++) {\n label = labels[i];\n encoded.push(regexNonASCII.test(label) ? 'xn--' + encode(label) : label);\n }\n return encoded.join('.');\n};\n","'use strict';\nvar toInteger = require('../internals/to-integer');\nvar requireObjectCoercible = require('../internals/require-object-coercible');\n\n// `String.prototype.repeat` method implementation\n// https://tc39.github.io/ecma262/#sec-string.prototype.repeat\nmodule.exports = ''.repeat || function repeat(count) {\n var str = String(requireObjectCoercible(this));\n var result = '';\n var n = toInteger(count);\n if (n < 0 || n == Infinity) throw RangeError('Wrong number of repetitions');\n for (;n > 0; (n >>>= 1) && (str += str)) if (n & 1) result += str;\n return result;\n};\n","var fails = require('../internals/fails');\nvar whitespaces = require('../internals/whitespaces');\n\nvar non = '\\u200B\\u0085\\u180E';\n\n// check that a method works with the correct list\n// of whitespaces and has a correct name\nmodule.exports = function (METHOD_NAME) {\n return fails(function () {\n return !!whitespaces[METHOD_NAME]() || non[METHOD_NAME]() != non || whitespaces[METHOD_NAME].name !== METHOD_NAME;\n });\n};\n","var requireObjectCoercible = require('../internals/require-object-coercible');\nvar whitespaces = require('../internals/whitespaces');\n\nvar whitespace = '[' + whitespaces + ']';\nvar ltrim = RegExp('^' + whitespace + whitespace + '*');\nvar rtrim = RegExp(whitespace + whitespace + '*$');\n\n// `String.prototype.{ trim, trimStart, trimEnd, trimLeft, trimRight }` methods implementation\nvar createMethod = function (TYPE) {\n return function ($this) {\n var string = String(requireObjectCoercible($this));\n if (TYPE & 1) string = string.replace(ltrim, '');\n if (TYPE & 2) string = string.replace(rtrim, '');\n return string;\n };\n};\n\nmodule.exports = {\n // `String.prototype.{ trimLeft, trimStart }` methods\n // https://tc39.github.io/ecma262/#sec-string.prototype.trimstart\n start: createMethod(1),\n // `String.prototype.{ trimRight, trimEnd }` methods\n // https://tc39.github.io/ecma262/#sec-string.prototype.trimend\n end: createMethod(2),\n // `String.prototype.trim` method\n // https://tc39.github.io/ecma262/#sec-string.prototype.trim\n trim: createMethod(3)\n};\n","var global = require('../internals/global');\nvar fails = require('../internals/fails');\nvar classof = require('../internals/classof-raw');\nvar bind = require('../internals/function-bind-context');\nvar html = require('../internals/html');\nvar createElement = require('../internals/document-create-element');\nvar IS_IOS = require('../internals/engine-is-ios');\n\nvar location = global.location;\nvar set = global.setImmediate;\nvar clear = global.clearImmediate;\nvar process = global.process;\nvar MessageChannel = global.MessageChannel;\nvar Dispatch = global.Dispatch;\nvar counter = 0;\nvar queue = {};\nvar ONREADYSTATECHANGE = 'onreadystatechange';\nvar defer, channel, port;\n\nvar run = function (id) {\n // eslint-disable-next-line no-prototype-builtins\n if (queue.hasOwnProperty(id)) {\n var fn = queue[id];\n delete queue[id];\n fn();\n }\n};\n\nvar runner = function (id) {\n return function () {\n run(id);\n };\n};\n\nvar listener = function (event) {\n run(event.data);\n};\n\nvar post = function (id) {\n // old engines have not location.origin\n global.postMessage(id + '', location.protocol + '//' + location.host);\n};\n\n// Node.js 0.9+ & IE10+ has setImmediate, otherwise:\nif (!set || !clear) {\n set = function setImmediate(fn) {\n var args = [];\n var i = 1;\n while (arguments.length > i) args.push(arguments[i++]);\n queue[++counter] = function () {\n // eslint-disable-next-line no-new-func\n (typeof fn == 'function' ? fn : Function(fn)).apply(undefined, args);\n };\n defer(counter);\n return counter;\n };\n clear = function clearImmediate(id) {\n delete queue[id];\n };\n // Node.js 0.8-\n if (classof(process) == 'process') {\n defer = function (id) {\n process.nextTick(runner(id));\n };\n // Sphere (JS game engine) Dispatch API\n } else if (Dispatch && Dispatch.now) {\n defer = function (id) {\n Dispatch.now(runner(id));\n };\n // Browsers with MessageChannel, includes WebWorkers\n // except iOS - https://github.com/zloirock/core-js/issues/624\n } else if (MessageChannel && !IS_IOS) {\n channel = new MessageChannel();\n port = channel.port2;\n channel.port1.onmessage = listener;\n defer = bind(port.postMessage, port, 1);\n // Browsers with postMessage, skip WebWorkers\n // IE8 has postMessage, but it's sync & typeof its postMessage is 'object'\n } else if (\n global.addEventListener &&\n typeof postMessage == 'function' &&\n !global.importScripts &&\n !fails(post) &&\n location.protocol !== 'file:'\n ) {\n defer = post;\n global.addEventListener('message', listener, false);\n // IE8-\n } else if (ONREADYSTATECHANGE in createElement('script')) {\n defer = function (id) {\n html.appendChild(createElement('script'))[ONREADYSTATECHANGE] = function () {\n html.removeChild(this);\n run(id);\n };\n };\n // Rest old browsers\n } else {\n defer = function (id) {\n setTimeout(runner(id), 0);\n };\n }\n}\n\nmodule.exports = {\n set: set,\n clear: clear\n};\n","var classof = require('../internals/classof-raw');\n\n// `thisNumberValue` abstract operation\n// https://tc39.github.io/ecma262/#sec-thisnumbervalue\nmodule.exports = function (value) {\n if (typeof value != 'number' && classof(value) != 'Number') {\n throw TypeError('Incorrect invocation');\n }\n return +value;\n};\n","var toInteger = require('../internals/to-integer');\n\nvar max = Math.max;\nvar min = Math.min;\n\n// Helper for a popular repeating case of the spec:\n// Let integer be ? ToInteger(index).\n// If integer < 0, let result be max((length + integer), 0); else let result be min(integer, length).\nmodule.exports = function (index, length) {\n var integer = toInteger(index);\n return integer < 0 ? max(integer + length, 0) : min(integer, length);\n};\n","var toInteger = require('../internals/to-integer');\nvar toLength = require('../internals/to-length');\n\n// `ToIndex` abstract operation\n// https://tc39.github.io/ecma262/#sec-toindex\nmodule.exports = function (it) {\n if (it === undefined) return 0;\n var number = toInteger(it);\n var length = toLength(number);\n if (number !== length) throw RangeError('Wrong length or index');\n return length;\n};\n","// toObject with fallback for non-array-like ES3 strings\nvar IndexedObject = require('../internals/indexed-object');\nvar requireObjectCoercible = require('../internals/require-object-coercible');\n\nmodule.exports = function (it) {\n return IndexedObject(requireObjectCoercible(it));\n};\n","var ceil = Math.ceil;\nvar floor = Math.floor;\n\n// `ToInteger` abstract operation\n// https://tc39.github.io/ecma262/#sec-tointeger\nmodule.exports = function (argument) {\n return isNaN(argument = +argument) ? 0 : (argument > 0 ? floor : ceil)(argument);\n};\n","var toInteger = require('../internals/to-integer');\n\nvar min = Math.min;\n\n// `ToLength` abstract operation\n// https://tc39.github.io/ecma262/#sec-tolength\nmodule.exports = function (argument) {\n return argument > 0 ? min(toInteger(argument), 0x1FFFFFFFFFFFFF) : 0; // 2 ** 53 - 1 == 9007199254740991\n};\n","var requireObjectCoercible = require('../internals/require-object-coercible');\n\n// `ToObject` abstract operation\n// https://tc39.github.io/ecma262/#sec-toobject\nmodule.exports = function (argument) {\n return Object(requireObjectCoercible(argument));\n};\n","var toPositiveInteger = require('../internals/to-positive-integer');\n\nmodule.exports = function (it, BYTES) {\n var offset = toPositiveInteger(it);\n if (offset % BYTES) throw RangeError('Wrong offset');\n return offset;\n};\n","var toInteger = require('../internals/to-integer');\n\nmodule.exports = function (it) {\n var result = toInteger(it);\n if (result < 0) throw RangeError(\"The argument can't be less than 0\");\n return result;\n};\n","var isObject = require('../internals/is-object');\n\n// `ToPrimitive` abstract operation\n// https://tc39.github.io/ecma262/#sec-toprimitive\n// instead of the ES6 spec version, we didn't implement @@toPrimitive case\n// and the second argument - flag - preferred type is a string\nmodule.exports = function (input, PREFERRED_STRING) {\n if (!isObject(input)) return input;\n var fn, val;\n if (PREFERRED_STRING && typeof (fn = input.toString) == 'function' && !isObject(val = fn.call(input))) return val;\n if (typeof (fn = input.valueOf) == 'function' && !isObject(val = fn.call(input))) return val;\n if (!PREFERRED_STRING && typeof (fn = input.toString) == 'function' && !isObject(val = fn.call(input))) return val;\n throw TypeError(\"Can't convert object to primitive value\");\n};\n","var wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar TO_STRING_TAG = wellKnownSymbol('toStringTag');\nvar test = {};\n\ntest[TO_STRING_TAG] = 'z';\n\nmodule.exports = String(test) === '[object z]';\n","'use strict';\nvar $ = require('../internals/export');\nvar global = require('../internals/global');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar TYPED_ARRAYS_CONSTRUCTORS_REQUIRES_WRAPPERS = require('../internals/typed-array-constructors-require-wrappers');\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\nvar ArrayBufferModule = require('../internals/array-buffer');\nvar anInstance = require('../internals/an-instance');\nvar createPropertyDescriptor = require('../internals/create-property-descriptor');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar toLength = require('../internals/to-length');\nvar toIndex = require('../internals/to-index');\nvar toOffset = require('../internals/to-offset');\nvar toPrimitive = require('../internals/to-primitive');\nvar has = require('../internals/has');\nvar classof = require('../internals/classof');\nvar isObject = require('../internals/is-object');\nvar create = require('../internals/object-create');\nvar setPrototypeOf = require('../internals/object-set-prototype-of');\nvar getOwnPropertyNames = require('../internals/object-get-own-property-names').f;\nvar typedArrayFrom = require('../internals/typed-array-from');\nvar forEach = require('../internals/array-iteration').forEach;\nvar setSpecies = require('../internals/set-species');\nvar definePropertyModule = require('../internals/object-define-property');\nvar getOwnPropertyDescriptorModule = require('../internals/object-get-own-property-descriptor');\nvar InternalStateModule = require('../internals/internal-state');\nvar inheritIfRequired = require('../internals/inherit-if-required');\n\nvar getInternalState = InternalStateModule.get;\nvar setInternalState = InternalStateModule.set;\nvar nativeDefineProperty = definePropertyModule.f;\nvar nativeGetOwnPropertyDescriptor = getOwnPropertyDescriptorModule.f;\nvar round = Math.round;\nvar RangeError = global.RangeError;\nvar ArrayBuffer = ArrayBufferModule.ArrayBuffer;\nvar DataView = ArrayBufferModule.DataView;\nvar NATIVE_ARRAY_BUFFER_VIEWS = ArrayBufferViewCore.NATIVE_ARRAY_BUFFER_VIEWS;\nvar TYPED_ARRAY_TAG = ArrayBufferViewCore.TYPED_ARRAY_TAG;\nvar TypedArray = ArrayBufferViewCore.TypedArray;\nvar TypedArrayPrototype = ArrayBufferViewCore.TypedArrayPrototype;\nvar aTypedArrayConstructor = ArrayBufferViewCore.aTypedArrayConstructor;\nvar isTypedArray = ArrayBufferViewCore.isTypedArray;\nvar BYTES_PER_ELEMENT = 'BYTES_PER_ELEMENT';\nvar WRONG_LENGTH = 'Wrong length';\n\nvar fromList = function (C, list) {\n var index = 0;\n var length = list.length;\n var result = new (aTypedArrayConstructor(C))(length);\n while (length > index) result[index] = list[index++];\n return result;\n};\n\nvar addGetter = function (it, key) {\n nativeDefineProperty(it, key, { get: function () {\n return getInternalState(this)[key];\n } });\n};\n\nvar isArrayBuffer = function (it) {\n var klass;\n return it instanceof ArrayBuffer || (klass = classof(it)) == 'ArrayBuffer' || klass == 'SharedArrayBuffer';\n};\n\nvar isTypedArrayIndex = function (target, key) {\n return isTypedArray(target)\n && typeof key != 'symbol'\n && key in target\n && String(+key) == String(key);\n};\n\nvar wrappedGetOwnPropertyDescriptor = function getOwnPropertyDescriptor(target, key) {\n return isTypedArrayIndex(target, key = toPrimitive(key, true))\n ? createPropertyDescriptor(2, target[key])\n : nativeGetOwnPropertyDescriptor(target, key);\n};\n\nvar wrappedDefineProperty = function defineProperty(target, key, descriptor) {\n if (isTypedArrayIndex(target, key = toPrimitive(key, true))\n && isObject(descriptor)\n && has(descriptor, 'value')\n && !has(descriptor, 'get')\n && !has(descriptor, 'set')\n // TODO: add validation descriptor w/o calling accessors\n && !descriptor.configurable\n && (!has(descriptor, 'writable') || descriptor.writable)\n && (!has(descriptor, 'enumerable') || descriptor.enumerable)\n ) {\n target[key] = descriptor.value;\n return target;\n } return nativeDefineProperty(target, key, descriptor);\n};\n\nif (DESCRIPTORS) {\n if (!NATIVE_ARRAY_BUFFER_VIEWS) {\n getOwnPropertyDescriptorModule.f = wrappedGetOwnPropertyDescriptor;\n definePropertyModule.f = wrappedDefineProperty;\n addGetter(TypedArrayPrototype, 'buffer');\n addGetter(TypedArrayPrototype, 'byteOffset');\n addGetter(TypedArrayPrototype, 'byteLength');\n addGetter(TypedArrayPrototype, 'length');\n }\n\n $({ target: 'Object', stat: true, forced: !NATIVE_ARRAY_BUFFER_VIEWS }, {\n getOwnPropertyDescriptor: wrappedGetOwnPropertyDescriptor,\n defineProperty: wrappedDefineProperty\n });\n\n module.exports = function (TYPE, wrapper, CLAMPED) {\n var BYTES = TYPE.match(/\\d+$/)[0] / 8;\n var CONSTRUCTOR_NAME = TYPE + (CLAMPED ? 'Clamped' : '') + 'Array';\n var GETTER = 'get' + TYPE;\n var SETTER = 'set' + TYPE;\n var NativeTypedArrayConstructor = global[CONSTRUCTOR_NAME];\n var TypedArrayConstructor = NativeTypedArrayConstructor;\n var TypedArrayConstructorPrototype = TypedArrayConstructor && TypedArrayConstructor.prototype;\n var exported = {};\n\n var getter = function (that, index) {\n var data = getInternalState(that);\n return data.view[GETTER](index * BYTES + data.byteOffset, true);\n };\n\n var setter = function (that, index, value) {\n var data = getInternalState(that);\n if (CLAMPED) value = (value = round(value)) < 0 ? 0 : value > 0xFF ? 0xFF : value & 0xFF;\n data.view[SETTER](index * BYTES + data.byteOffset, value, true);\n };\n\n var addElement = function (that, index) {\n nativeDefineProperty(that, index, {\n get: function () {\n return getter(this, index);\n },\n set: function (value) {\n return setter(this, index, value);\n },\n enumerable: true\n });\n };\n\n if (!NATIVE_ARRAY_BUFFER_VIEWS) {\n TypedArrayConstructor = wrapper(function (that, data, offset, $length) {\n anInstance(that, TypedArrayConstructor, CONSTRUCTOR_NAME);\n var index = 0;\n var byteOffset = 0;\n var buffer, byteLength, length;\n if (!isObject(data)) {\n length = toIndex(data);\n byteLength = length * BYTES;\n buffer = new ArrayBuffer(byteLength);\n } else if (isArrayBuffer(data)) {\n buffer = data;\n byteOffset = toOffset(offset, BYTES);\n var $len = data.byteLength;\n if ($length === undefined) {\n if ($len % BYTES) throw RangeError(WRONG_LENGTH);\n byteLength = $len - byteOffset;\n if (byteLength < 0) throw RangeError(WRONG_LENGTH);\n } else {\n byteLength = toLength($length) * BYTES;\n if (byteLength + byteOffset > $len) throw RangeError(WRONG_LENGTH);\n }\n length = byteLength / BYTES;\n } else if (isTypedArray(data)) {\n return fromList(TypedArrayConstructor, data);\n } else {\n return typedArrayFrom.call(TypedArrayConstructor, data);\n }\n setInternalState(that, {\n buffer: buffer,\n byteOffset: byteOffset,\n byteLength: byteLength,\n length: length,\n view: new DataView(buffer)\n });\n while (index < length) addElement(that, index++);\n });\n\n if (setPrototypeOf) setPrototypeOf(TypedArrayConstructor, TypedArray);\n TypedArrayConstructorPrototype = TypedArrayConstructor.prototype = create(TypedArrayPrototype);\n } else if (TYPED_ARRAYS_CONSTRUCTORS_REQUIRES_WRAPPERS) {\n TypedArrayConstructor = wrapper(function (dummy, data, typedArrayOffset, $length) {\n anInstance(dummy, TypedArrayConstructor, CONSTRUCTOR_NAME);\n return inheritIfRequired(function () {\n if (!isObject(data)) return new NativeTypedArrayConstructor(toIndex(data));\n if (isArrayBuffer(data)) return $length !== undefined\n ? new NativeTypedArrayConstructor(data, toOffset(typedArrayOffset, BYTES), $length)\n : typedArrayOffset !== undefined\n ? new NativeTypedArrayConstructor(data, toOffset(typedArrayOffset, BYTES))\n : new NativeTypedArrayConstructor(data);\n if (isTypedArray(data)) return fromList(TypedArrayConstructor, data);\n return typedArrayFrom.call(TypedArrayConstructor, data);\n }(), dummy, TypedArrayConstructor);\n });\n\n if (setPrototypeOf) setPrototypeOf(TypedArrayConstructor, TypedArray);\n forEach(getOwnPropertyNames(NativeTypedArrayConstructor), function (key) {\n if (!(key in TypedArrayConstructor)) {\n createNonEnumerableProperty(TypedArrayConstructor, key, NativeTypedArrayConstructor[key]);\n }\n });\n TypedArrayConstructor.prototype = TypedArrayConstructorPrototype;\n }\n\n if (TypedArrayConstructorPrototype.constructor !== TypedArrayConstructor) {\n createNonEnumerableProperty(TypedArrayConstructorPrototype, 'constructor', TypedArrayConstructor);\n }\n\n if (TYPED_ARRAY_TAG) {\n createNonEnumerableProperty(TypedArrayConstructorPrototype, TYPED_ARRAY_TAG, CONSTRUCTOR_NAME);\n }\n\n exported[CONSTRUCTOR_NAME] = TypedArrayConstructor;\n\n $({\n global: true, forced: TypedArrayConstructor != NativeTypedArrayConstructor, sham: !NATIVE_ARRAY_BUFFER_VIEWS\n }, exported);\n\n if (!(BYTES_PER_ELEMENT in TypedArrayConstructor)) {\n createNonEnumerableProperty(TypedArrayConstructor, BYTES_PER_ELEMENT, BYTES);\n }\n\n if (!(BYTES_PER_ELEMENT in TypedArrayConstructorPrototype)) {\n createNonEnumerableProperty(TypedArrayConstructorPrototype, BYTES_PER_ELEMENT, BYTES);\n }\n\n setSpecies(CONSTRUCTOR_NAME);\n };\n} else module.exports = function () { /* empty */ };\n","/* eslint-disable no-new */\nvar global = require('../internals/global');\nvar fails = require('../internals/fails');\nvar checkCorrectnessOfIteration = require('../internals/check-correctness-of-iteration');\nvar NATIVE_ARRAY_BUFFER_VIEWS = require('../internals/array-buffer-view-core').NATIVE_ARRAY_BUFFER_VIEWS;\n\nvar ArrayBuffer = global.ArrayBuffer;\nvar Int8Array = global.Int8Array;\n\nmodule.exports = !NATIVE_ARRAY_BUFFER_VIEWS || !fails(function () {\n Int8Array(1);\n}) || !fails(function () {\n new Int8Array(-1);\n}) || !checkCorrectnessOfIteration(function (iterable) {\n new Int8Array();\n new Int8Array(null);\n new Int8Array(1.5);\n new Int8Array(iterable);\n}, true) || fails(function () {\n // Safari (11+) bug - a reason why even Safari 13 should load a typed array polyfill\n return new Int8Array(new ArrayBuffer(2), 1, undefined).length !== 1;\n});\n","var toObject = require('../internals/to-object');\nvar toLength = require('../internals/to-length');\nvar getIteratorMethod = require('../internals/get-iterator-method');\nvar isArrayIteratorMethod = require('../internals/is-array-iterator-method');\nvar bind = require('../internals/function-bind-context');\nvar aTypedArrayConstructor = require('../internals/array-buffer-view-core').aTypedArrayConstructor;\n\nmodule.exports = function from(source /* , mapfn, thisArg */) {\n var O = toObject(source);\n var argumentsLength = arguments.length;\n var mapfn = argumentsLength > 1 ? arguments[1] : undefined;\n var mapping = mapfn !== undefined;\n var iteratorMethod = getIteratorMethod(O);\n var i, length, result, step, iterator, next;\n if (iteratorMethod != undefined && !isArrayIteratorMethod(iteratorMethod)) {\n iterator = iteratorMethod.call(O);\n next = iterator.next;\n O = [];\n while (!(step = next.call(iterator)).done) {\n O.push(step.value);\n }\n }\n if (mapping && argumentsLength > 2) {\n mapfn = bind(mapfn, arguments[2], 2);\n }\n length = toLength(O.length);\n result = new (aTypedArrayConstructor(this))(length);\n for (i = 0; length > i; i++) {\n result[i] = mapping ? mapfn(O[i], i) : O[i];\n }\n return result;\n};\n","var id = 0;\nvar postfix = Math.random();\n\nmodule.exports = function (key) {\n return 'Symbol(' + String(key === undefined ? '' : key) + ')_' + (++id + postfix).toString(36);\n};\n","var NATIVE_SYMBOL = require('../internals/native-symbol');\n\nmodule.exports = NATIVE_SYMBOL\n // eslint-disable-next-line no-undef\n && !Symbol.sham\n // eslint-disable-next-line no-undef\n && typeof Symbol.iterator == 'symbol';\n","var wellKnownSymbol = require('../internals/well-known-symbol');\n\nexports.f = wellKnownSymbol;\n","var global = require('../internals/global');\nvar shared = require('../internals/shared');\nvar has = require('../internals/has');\nvar uid = require('../internals/uid');\nvar NATIVE_SYMBOL = require('../internals/native-symbol');\nvar USE_SYMBOL_AS_UID = require('../internals/use-symbol-as-uid');\n\nvar WellKnownSymbolsStore = shared('wks');\nvar Symbol = global.Symbol;\nvar createWellKnownSymbol = USE_SYMBOL_AS_UID ? Symbol : Symbol && Symbol.withoutSetter || uid;\n\nmodule.exports = function (name) {\n if (!has(WellKnownSymbolsStore, name)) {\n if (NATIVE_SYMBOL && has(Symbol, name)) WellKnownSymbolsStore[name] = Symbol[name];\n else WellKnownSymbolsStore[name] = createWellKnownSymbol('Symbol.' + name);\n } return WellKnownSymbolsStore[name];\n};\n","// a string of all valid unicode whitespaces\n// eslint-disable-next-line max-len\nmodule.exports = '\\u0009\\u000A\\u000B\\u000C\\u000D\\u0020\\u00A0\\u1680\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200A\\u202F\\u205F\\u3000\\u2028\\u2029\\uFEFF';\n","'use strict';\nvar $ = require('../internals/export');\nvar global = require('../internals/global');\nvar arrayBufferModule = require('../internals/array-buffer');\nvar setSpecies = require('../internals/set-species');\n\nvar ARRAY_BUFFER = 'ArrayBuffer';\nvar ArrayBuffer = arrayBufferModule[ARRAY_BUFFER];\nvar NativeArrayBuffer = global[ARRAY_BUFFER];\n\n// `ArrayBuffer` constructor\n// https://tc39.github.io/ecma262/#sec-arraybuffer-constructor\n$({ global: true, forced: NativeArrayBuffer !== ArrayBuffer }, {\n ArrayBuffer: ArrayBuffer\n});\n\nsetSpecies(ARRAY_BUFFER);\n","var $ = require('../internals/export');\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\n\nvar NATIVE_ARRAY_BUFFER_VIEWS = ArrayBufferViewCore.NATIVE_ARRAY_BUFFER_VIEWS;\n\n// `ArrayBuffer.isView` method\n// https://tc39.github.io/ecma262/#sec-arraybuffer.isview\n$({ target: 'ArrayBuffer', stat: true, forced: !NATIVE_ARRAY_BUFFER_VIEWS }, {\n isView: ArrayBufferViewCore.isView\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar fails = require('../internals/fails');\nvar ArrayBufferModule = require('../internals/array-buffer');\nvar anObject = require('../internals/an-object');\nvar toAbsoluteIndex = require('../internals/to-absolute-index');\nvar toLength = require('../internals/to-length');\nvar speciesConstructor = require('../internals/species-constructor');\n\nvar ArrayBuffer = ArrayBufferModule.ArrayBuffer;\nvar DataView = ArrayBufferModule.DataView;\nvar nativeArrayBufferSlice = ArrayBuffer.prototype.slice;\n\nvar INCORRECT_SLICE = fails(function () {\n return !new ArrayBuffer(2).slice(1, undefined).byteLength;\n});\n\n// `ArrayBuffer.prototype.slice` method\n// https://tc39.github.io/ecma262/#sec-arraybuffer.prototype.slice\n$({ target: 'ArrayBuffer', proto: true, unsafe: true, forced: INCORRECT_SLICE }, {\n slice: function slice(start, end) {\n if (nativeArrayBufferSlice !== undefined && end === undefined) {\n return nativeArrayBufferSlice.call(anObject(this), start); // FF fix\n }\n var length = anObject(this).byteLength;\n var first = toAbsoluteIndex(start, length);\n var fin = toAbsoluteIndex(end === undefined ? length : end, length);\n var result = new (speciesConstructor(this, ArrayBuffer))(toLength(fin - first));\n var viewSource = new DataView(this);\n var viewTarget = new DataView(result);\n var index = 0;\n while (first < fin) {\n viewTarget.setUint8(index++, viewSource.getUint8(first++));\n } return result;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar fails = require('../internals/fails');\nvar isArray = require('../internals/is-array');\nvar isObject = require('../internals/is-object');\nvar toObject = require('../internals/to-object');\nvar toLength = require('../internals/to-length');\nvar createProperty = require('../internals/create-property');\nvar arraySpeciesCreate = require('../internals/array-species-create');\nvar arrayMethodHasSpeciesSupport = require('../internals/array-method-has-species-support');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar V8_VERSION = require('../internals/engine-v8-version');\n\nvar IS_CONCAT_SPREADABLE = wellKnownSymbol('isConcatSpreadable');\nvar MAX_SAFE_INTEGER = 0x1FFFFFFFFFFFFF;\nvar MAXIMUM_ALLOWED_INDEX_EXCEEDED = 'Maximum allowed index exceeded';\n\n// We can't use this feature detection in V8 since it causes\n// deoptimization and serious performance degradation\n// https://github.com/zloirock/core-js/issues/679\nvar IS_CONCAT_SPREADABLE_SUPPORT = V8_VERSION >= 51 || !fails(function () {\n var array = [];\n array[IS_CONCAT_SPREADABLE] = false;\n return array.concat()[0] !== array;\n});\n\nvar SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('concat');\n\nvar isConcatSpreadable = function (O) {\n if (!isObject(O)) return false;\n var spreadable = O[IS_CONCAT_SPREADABLE];\n return spreadable !== undefined ? !!spreadable : isArray(O);\n};\n\nvar FORCED = !IS_CONCAT_SPREADABLE_SUPPORT || !SPECIES_SUPPORT;\n\n// `Array.prototype.concat` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.concat\n// with adding support of @@isConcatSpreadable and @@species\n$({ target: 'Array', proto: true, forced: FORCED }, {\n concat: function concat(arg) { // eslint-disable-line no-unused-vars\n var O = toObject(this);\n var A = arraySpeciesCreate(O, 0);\n var n = 0;\n var i, k, length, len, E;\n for (i = -1, length = arguments.length; i < length; i++) {\n E = i === -1 ? O : arguments[i];\n if (isConcatSpreadable(E)) {\n len = toLength(E.length);\n if (n + len > MAX_SAFE_INTEGER) throw TypeError(MAXIMUM_ALLOWED_INDEX_EXCEEDED);\n for (k = 0; k < len; k++, n++) if (k in E) createProperty(A, n, E[k]);\n } else {\n if (n >= MAX_SAFE_INTEGER) throw TypeError(MAXIMUM_ALLOWED_INDEX_EXCEEDED);\n createProperty(A, n++, E);\n }\n }\n A.length = n;\n return A;\n }\n});\n","var $ = require('../internals/export');\nvar copyWithin = require('../internals/array-copy-within');\nvar addToUnscopables = require('../internals/add-to-unscopables');\n\n// `Array.prototype.copyWithin` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.copywithin\n$({ target: 'Array', proto: true }, {\n copyWithin: copyWithin\n});\n\n// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables\naddToUnscopables('copyWithin');\n","'use strict';\nvar $ = require('../internals/export');\nvar $every = require('../internals/array-iteration').every;\nvar arrayMethodIsStrict = require('../internals/array-method-is-strict');\nvar arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');\n\nvar STRICT_METHOD = arrayMethodIsStrict('every');\nvar USES_TO_LENGTH = arrayMethodUsesToLength('every');\n\n// `Array.prototype.every` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.every\n$({ target: 'Array', proto: true, forced: !STRICT_METHOD || !USES_TO_LENGTH }, {\n every: function every(callbackfn /* , thisArg */) {\n return $every(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);\n }\n});\n","var $ = require('../internals/export');\nvar fill = require('../internals/array-fill');\nvar addToUnscopables = require('../internals/add-to-unscopables');\n\n// `Array.prototype.fill` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.fill\n$({ target: 'Array', proto: true }, {\n fill: fill\n});\n\n// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables\naddToUnscopables('fill');\n","'use strict';\nvar $ = require('../internals/export');\nvar $filter = require('../internals/array-iteration').filter;\nvar arrayMethodHasSpeciesSupport = require('../internals/array-method-has-species-support');\nvar arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');\n\nvar HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('filter');\n// Edge 14- issue\nvar USES_TO_LENGTH = arrayMethodUsesToLength('filter');\n\n// `Array.prototype.filter` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.filter\n// with adding support of @@species\n$({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT || !USES_TO_LENGTH }, {\n filter: function filter(callbackfn /* , thisArg */) {\n return $filter(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar $findIndex = require('../internals/array-iteration').findIndex;\nvar addToUnscopables = require('../internals/add-to-unscopables');\nvar arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');\n\nvar FIND_INDEX = 'findIndex';\nvar SKIPS_HOLES = true;\n\nvar USES_TO_LENGTH = arrayMethodUsesToLength(FIND_INDEX);\n\n// Shouldn't skip holes\nif (FIND_INDEX in []) Array(1)[FIND_INDEX](function () { SKIPS_HOLES = false; });\n\n// `Array.prototype.findIndex` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.findindex\n$({ target: 'Array', proto: true, forced: SKIPS_HOLES || !USES_TO_LENGTH }, {\n findIndex: function findIndex(callbackfn /* , that = undefined */) {\n return $findIndex(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);\n }\n});\n\n// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables\naddToUnscopables(FIND_INDEX);\n","'use strict';\nvar $ = require('../internals/export');\nvar $find = require('../internals/array-iteration').find;\nvar addToUnscopables = require('../internals/add-to-unscopables');\nvar arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');\n\nvar FIND = 'find';\nvar SKIPS_HOLES = true;\n\nvar USES_TO_LENGTH = arrayMethodUsesToLength(FIND);\n\n// Shouldn't skip holes\nif (FIND in []) Array(1)[FIND](function () { SKIPS_HOLES = false; });\n\n// `Array.prototype.find` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.find\n$({ target: 'Array', proto: true, forced: SKIPS_HOLES || !USES_TO_LENGTH }, {\n find: function find(callbackfn /* , that = undefined */) {\n return $find(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);\n }\n});\n\n// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables\naddToUnscopables(FIND);\n","'use strict';\nvar $ = require('../internals/export');\nvar flattenIntoArray = require('../internals/flatten-into-array');\nvar toObject = require('../internals/to-object');\nvar toLength = require('../internals/to-length');\nvar aFunction = require('../internals/a-function');\nvar arraySpeciesCreate = require('../internals/array-species-create');\n\n// `Array.prototype.flatMap` method\n// https://github.com/tc39/proposal-flatMap\n$({ target: 'Array', proto: true }, {\n flatMap: function flatMap(callbackfn /* , thisArg */) {\n var O = toObject(this);\n var sourceLen = toLength(O.length);\n var A;\n aFunction(callbackfn);\n A = arraySpeciesCreate(O, 0);\n A.length = flattenIntoArray(A, O, O, sourceLen, 0, 1, callbackfn, arguments.length > 1 ? arguments[1] : undefined);\n return A;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar flattenIntoArray = require('../internals/flatten-into-array');\nvar toObject = require('../internals/to-object');\nvar toLength = require('../internals/to-length');\nvar toInteger = require('../internals/to-integer');\nvar arraySpeciesCreate = require('../internals/array-species-create');\n\n// `Array.prototype.flat` method\n// https://github.com/tc39/proposal-flatMap\n$({ target: 'Array', proto: true }, {\n flat: function flat(/* depthArg = 1 */) {\n var depthArg = arguments.length ? arguments[0] : undefined;\n var O = toObject(this);\n var sourceLen = toLength(O.length);\n var A = arraySpeciesCreate(O, 0);\n A.length = flattenIntoArray(A, O, O, sourceLen, 0, depthArg === undefined ? 1 : toInteger(depthArg));\n return A;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar forEach = require('../internals/array-for-each');\n\n// `Array.prototype.forEach` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.foreach\n$({ target: 'Array', proto: true, forced: [].forEach != forEach }, {\n forEach: forEach\n});\n","var $ = require('../internals/export');\nvar from = require('../internals/array-from');\nvar checkCorrectnessOfIteration = require('../internals/check-correctness-of-iteration');\n\nvar INCORRECT_ITERATION = !checkCorrectnessOfIteration(function (iterable) {\n Array.from(iterable);\n});\n\n// `Array.from` method\n// https://tc39.github.io/ecma262/#sec-array.from\n$({ target: 'Array', stat: true, forced: INCORRECT_ITERATION }, {\n from: from\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar $includes = require('../internals/array-includes').includes;\nvar addToUnscopables = require('../internals/add-to-unscopables');\nvar arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');\n\nvar USES_TO_LENGTH = arrayMethodUsesToLength('indexOf', { ACCESSORS: true, 1: 0 });\n\n// `Array.prototype.includes` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.includes\n$({ target: 'Array', proto: true, forced: !USES_TO_LENGTH }, {\n includes: function includes(el /* , fromIndex = 0 */) {\n return $includes(this, el, arguments.length > 1 ? arguments[1] : undefined);\n }\n});\n\n// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables\naddToUnscopables('includes');\n","'use strict';\nvar $ = require('../internals/export');\nvar $indexOf = require('../internals/array-includes').indexOf;\nvar arrayMethodIsStrict = require('../internals/array-method-is-strict');\nvar arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');\n\nvar nativeIndexOf = [].indexOf;\n\nvar NEGATIVE_ZERO = !!nativeIndexOf && 1 / [1].indexOf(1, -0) < 0;\nvar STRICT_METHOD = arrayMethodIsStrict('indexOf');\nvar USES_TO_LENGTH = arrayMethodUsesToLength('indexOf', { ACCESSORS: true, 1: 0 });\n\n// `Array.prototype.indexOf` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.indexof\n$({ target: 'Array', proto: true, forced: NEGATIVE_ZERO || !STRICT_METHOD || !USES_TO_LENGTH }, {\n indexOf: function indexOf(searchElement /* , fromIndex = 0 */) {\n return NEGATIVE_ZERO\n // convert -0 to +0\n ? nativeIndexOf.apply(this, arguments) || 0\n : $indexOf(this, searchElement, arguments.length > 1 ? arguments[1] : undefined);\n }\n});\n","var $ = require('../internals/export');\nvar isArray = require('../internals/is-array');\n\n// `Array.isArray` method\n// https://tc39.github.io/ecma262/#sec-array.isarray\n$({ target: 'Array', stat: true }, {\n isArray: isArray\n});\n","'use strict';\nvar toIndexedObject = require('../internals/to-indexed-object');\nvar addToUnscopables = require('../internals/add-to-unscopables');\nvar Iterators = require('../internals/iterators');\nvar InternalStateModule = require('../internals/internal-state');\nvar defineIterator = require('../internals/define-iterator');\n\nvar ARRAY_ITERATOR = 'Array Iterator';\nvar setInternalState = InternalStateModule.set;\nvar getInternalState = InternalStateModule.getterFor(ARRAY_ITERATOR);\n\n// `Array.prototype.entries` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.entries\n// `Array.prototype.keys` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.keys\n// `Array.prototype.values` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.values\n// `Array.prototype[@@iterator]` method\n// https://tc39.github.io/ecma262/#sec-array.prototype-@@iterator\n// `CreateArrayIterator` internal method\n// https://tc39.github.io/ecma262/#sec-createarrayiterator\nmodule.exports = defineIterator(Array, 'Array', function (iterated, kind) {\n setInternalState(this, {\n type: ARRAY_ITERATOR,\n target: toIndexedObject(iterated), // target\n index: 0, // next index\n kind: kind // kind\n });\n// `%ArrayIteratorPrototype%.next` method\n// https://tc39.github.io/ecma262/#sec-%arrayiteratorprototype%.next\n}, function () {\n var state = getInternalState(this);\n var target = state.target;\n var kind = state.kind;\n var index = state.index++;\n if (!target || index >= target.length) {\n state.target = undefined;\n return { value: undefined, done: true };\n }\n if (kind == 'keys') return { value: index, done: false };\n if (kind == 'values') return { value: target[index], done: false };\n return { value: [index, target[index]], done: false };\n}, 'values');\n\n// argumentsList[@@iterator] is %ArrayProto_values%\n// https://tc39.github.io/ecma262/#sec-createunmappedargumentsobject\n// https://tc39.github.io/ecma262/#sec-createmappedargumentsobject\nIterators.Arguments = Iterators.Array;\n\n// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables\naddToUnscopables('keys');\naddToUnscopables('values');\naddToUnscopables('entries');\n","'use strict';\nvar $ = require('../internals/export');\nvar IndexedObject = require('../internals/indexed-object');\nvar toIndexedObject = require('../internals/to-indexed-object');\nvar arrayMethodIsStrict = require('../internals/array-method-is-strict');\n\nvar nativeJoin = [].join;\n\nvar ES3_STRINGS = IndexedObject != Object;\nvar STRICT_METHOD = arrayMethodIsStrict('join', ',');\n\n// `Array.prototype.join` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.join\n$({ target: 'Array', proto: true, forced: ES3_STRINGS || !STRICT_METHOD }, {\n join: function join(separator) {\n return nativeJoin.call(toIndexedObject(this), separator === undefined ? ',' : separator);\n }\n});\n","var $ = require('../internals/export');\nvar lastIndexOf = require('../internals/array-last-index-of');\n\n// `Array.prototype.lastIndexOf` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.lastindexof\n$({ target: 'Array', proto: true, forced: lastIndexOf !== [].lastIndexOf }, {\n lastIndexOf: lastIndexOf\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar $map = require('../internals/array-iteration').map;\nvar arrayMethodHasSpeciesSupport = require('../internals/array-method-has-species-support');\nvar arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');\n\nvar HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('map');\n// FF49- issue\nvar USES_TO_LENGTH = arrayMethodUsesToLength('map');\n\n// `Array.prototype.map` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.map\n// with adding support of @@species\n$({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT || !USES_TO_LENGTH }, {\n map: function map(callbackfn /* , thisArg */) {\n return $map(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar fails = require('../internals/fails');\nvar createProperty = require('../internals/create-property');\n\nvar ISNT_GENERIC = fails(function () {\n function F() { /* empty */ }\n return !(Array.of.call(F) instanceof F);\n});\n\n// `Array.of` method\n// https://tc39.github.io/ecma262/#sec-array.of\n// WebKit Array.of isn't generic\n$({ target: 'Array', stat: true, forced: ISNT_GENERIC }, {\n of: function of(/* ...args */) {\n var index = 0;\n var argumentsLength = arguments.length;\n var result = new (typeof this == 'function' ? this : Array)(argumentsLength);\n while (argumentsLength > index) createProperty(result, index, arguments[index++]);\n result.length = argumentsLength;\n return result;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar $reduceRight = require('../internals/array-reduce').right;\nvar arrayMethodIsStrict = require('../internals/array-method-is-strict');\nvar arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');\n\nvar STRICT_METHOD = arrayMethodIsStrict('reduceRight');\n// For preventing possible almost infinite loop in non-standard implementations, test the forward version of the method\nvar USES_TO_LENGTH = arrayMethodUsesToLength('reduce', { 1: 0 });\n\n// `Array.prototype.reduceRight` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.reduceright\n$({ target: 'Array', proto: true, forced: !STRICT_METHOD || !USES_TO_LENGTH }, {\n reduceRight: function reduceRight(callbackfn /* , initialValue */) {\n return $reduceRight(this, callbackfn, arguments.length, arguments.length > 1 ? arguments[1] : undefined);\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar $reduce = require('../internals/array-reduce').left;\nvar arrayMethodIsStrict = require('../internals/array-method-is-strict');\nvar arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');\n\nvar STRICT_METHOD = arrayMethodIsStrict('reduce');\nvar USES_TO_LENGTH = arrayMethodUsesToLength('reduce', { 1: 0 });\n\n// `Array.prototype.reduce` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.reduce\n$({ target: 'Array', proto: true, forced: !STRICT_METHOD || !USES_TO_LENGTH }, {\n reduce: function reduce(callbackfn /* , initialValue */) {\n return $reduce(this, callbackfn, arguments.length, arguments.length > 1 ? arguments[1] : undefined);\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar isArray = require('../internals/is-array');\n\nvar nativeReverse = [].reverse;\nvar test = [1, 2];\n\n// `Array.prototype.reverse` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.reverse\n// fix for Safari 12.0 bug\n// https://bugs.webkit.org/show_bug.cgi?id=188794\n$({ target: 'Array', proto: true, forced: String(test) === String(test.reverse()) }, {\n reverse: function reverse() {\n // eslint-disable-next-line no-self-assign\n if (isArray(this)) this.length = this.length;\n return nativeReverse.call(this);\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar isObject = require('../internals/is-object');\nvar isArray = require('../internals/is-array');\nvar toAbsoluteIndex = require('../internals/to-absolute-index');\nvar toLength = require('../internals/to-length');\nvar toIndexedObject = require('../internals/to-indexed-object');\nvar createProperty = require('../internals/create-property');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar arrayMethodHasSpeciesSupport = require('../internals/array-method-has-species-support');\nvar arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');\n\nvar HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('slice');\nvar USES_TO_LENGTH = arrayMethodUsesToLength('slice', { ACCESSORS: true, 0: 0, 1: 2 });\n\nvar SPECIES = wellKnownSymbol('species');\nvar nativeSlice = [].slice;\nvar max = Math.max;\n\n// `Array.prototype.slice` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.slice\n// fallback for not array-like ES3 strings and DOM objects\n$({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT || !USES_TO_LENGTH }, {\n slice: function slice(start, end) {\n var O = toIndexedObject(this);\n var length = toLength(O.length);\n var k = toAbsoluteIndex(start, length);\n var fin = toAbsoluteIndex(end === undefined ? length : end, length);\n // inline `ArraySpeciesCreate` for usage native `Array#slice` where it's possible\n var Constructor, result, n;\n if (isArray(O)) {\n Constructor = O.constructor;\n // cross-realm fallback\n if (typeof Constructor == 'function' && (Constructor === Array || isArray(Constructor.prototype))) {\n Constructor = undefined;\n } else if (isObject(Constructor)) {\n Constructor = Constructor[SPECIES];\n if (Constructor === null) Constructor = undefined;\n }\n if (Constructor === Array || Constructor === undefined) {\n return nativeSlice.call(O, k, fin);\n }\n }\n result = new (Constructor === undefined ? Array : Constructor)(max(fin - k, 0));\n for (n = 0; k < fin; k++, n++) if (k in O) createProperty(result, n, O[k]);\n result.length = n;\n return result;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar $some = require('../internals/array-iteration').some;\nvar arrayMethodIsStrict = require('../internals/array-method-is-strict');\nvar arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');\n\nvar STRICT_METHOD = arrayMethodIsStrict('some');\nvar USES_TO_LENGTH = arrayMethodUsesToLength('some');\n\n// `Array.prototype.some` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.some\n$({ target: 'Array', proto: true, forced: !STRICT_METHOD || !USES_TO_LENGTH }, {\n some: function some(callbackfn /* , thisArg */) {\n return $some(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar aFunction = require('../internals/a-function');\nvar toObject = require('../internals/to-object');\nvar fails = require('../internals/fails');\nvar arrayMethodIsStrict = require('../internals/array-method-is-strict');\n\nvar test = [];\nvar nativeSort = test.sort;\n\n// IE8-\nvar FAILS_ON_UNDEFINED = fails(function () {\n test.sort(undefined);\n});\n// V8 bug\nvar FAILS_ON_NULL = fails(function () {\n test.sort(null);\n});\n// Old WebKit\nvar STRICT_METHOD = arrayMethodIsStrict('sort');\n\nvar FORCED = FAILS_ON_UNDEFINED || !FAILS_ON_NULL || !STRICT_METHOD;\n\n// `Array.prototype.sort` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.sort\n$({ target: 'Array', proto: true, forced: FORCED }, {\n sort: function sort(comparefn) {\n return comparefn === undefined\n ? nativeSort.call(toObject(this))\n : nativeSort.call(toObject(this), aFunction(comparefn));\n }\n});\n","var setSpecies = require('../internals/set-species');\n\n// `Array[@@species]` getter\n// https://tc39.github.io/ecma262/#sec-get-array-@@species\nsetSpecies('Array');\n","'use strict';\nvar $ = require('../internals/export');\nvar toAbsoluteIndex = require('../internals/to-absolute-index');\nvar toInteger = require('../internals/to-integer');\nvar toLength = require('../internals/to-length');\nvar toObject = require('../internals/to-object');\nvar arraySpeciesCreate = require('../internals/array-species-create');\nvar createProperty = require('../internals/create-property');\nvar arrayMethodHasSpeciesSupport = require('../internals/array-method-has-species-support');\nvar arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');\n\nvar HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('splice');\nvar USES_TO_LENGTH = arrayMethodUsesToLength('splice', { ACCESSORS: true, 0: 0, 1: 2 });\n\nvar max = Math.max;\nvar min = Math.min;\nvar MAX_SAFE_INTEGER = 0x1FFFFFFFFFFFFF;\nvar MAXIMUM_ALLOWED_LENGTH_EXCEEDED = 'Maximum allowed length exceeded';\n\n// `Array.prototype.splice` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.splice\n// with adding support of @@species\n$({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT || !USES_TO_LENGTH }, {\n splice: function splice(start, deleteCount /* , ...items */) {\n var O = toObject(this);\n var len = toLength(O.length);\n var actualStart = toAbsoluteIndex(start, len);\n var argumentsLength = arguments.length;\n var insertCount, actualDeleteCount, A, k, from, to;\n if (argumentsLength === 0) {\n insertCount = actualDeleteCount = 0;\n } else if (argumentsLength === 1) {\n insertCount = 0;\n actualDeleteCount = len - actualStart;\n } else {\n insertCount = argumentsLength - 2;\n actualDeleteCount = min(max(toInteger(deleteCount), 0), len - actualStart);\n }\n if (len + insertCount - actualDeleteCount > MAX_SAFE_INTEGER) {\n throw TypeError(MAXIMUM_ALLOWED_LENGTH_EXCEEDED);\n }\n A = arraySpeciesCreate(O, actualDeleteCount);\n for (k = 0; k < actualDeleteCount; k++) {\n from = actualStart + k;\n if (from in O) createProperty(A, k, O[from]);\n }\n A.length = actualDeleteCount;\n if (insertCount < actualDeleteCount) {\n for (k = actualStart; k < len - actualDeleteCount; k++) {\n from = k + actualDeleteCount;\n to = k + insertCount;\n if (from in O) O[to] = O[from];\n else delete O[to];\n }\n for (k = len; k > len - actualDeleteCount + insertCount; k--) delete O[k - 1];\n } else if (insertCount > actualDeleteCount) {\n for (k = len - actualDeleteCount; k > actualStart; k--) {\n from = k + actualDeleteCount - 1;\n to = k + insertCount - 1;\n if (from in O) O[to] = O[from];\n else delete O[to];\n }\n }\n for (k = 0; k < insertCount; k++) {\n O[k + actualStart] = arguments[k + 2];\n }\n O.length = len - actualDeleteCount + insertCount;\n return A;\n }\n});\n","// this method was added to unscopables after implementation\n// in popular engines, so it's moved to a separate module\nvar addToUnscopables = require('../internals/add-to-unscopables');\n\naddToUnscopables('flatMap');\n","// this method was added to unscopables after implementation\n// in popular engines, so it's moved to a separate module\nvar addToUnscopables = require('../internals/add-to-unscopables');\n\naddToUnscopables('flat');\n","var $ = require('../internals/export');\nvar ArrayBufferModule = require('../internals/array-buffer');\nvar NATIVE_ARRAY_BUFFER = require('../internals/array-buffer-native');\n\n// `DataView` constructor\n// https://tc39.github.io/ecma262/#sec-dataview-constructor\n$({ global: true, forced: !NATIVE_ARRAY_BUFFER }, {\n DataView: ArrayBufferModule.DataView\n});\n","var $ = require('../internals/export');\n\n// `Date.now` method\n// https://tc39.github.io/ecma262/#sec-date.now\n$({ target: 'Date', stat: true }, {\n now: function now() {\n return new Date().getTime();\n }\n});\n","var $ = require('../internals/export');\nvar toISOString = require('../internals/date-to-iso-string');\n\n// `Date.prototype.toISOString` method\n// https://tc39.github.io/ecma262/#sec-date.prototype.toisostring\n// PhantomJS / old WebKit has a broken implementations\n$({ target: 'Date', proto: true, forced: Date.prototype.toISOString !== toISOString }, {\n toISOString: toISOString\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar fails = require('../internals/fails');\nvar toObject = require('../internals/to-object');\nvar toPrimitive = require('../internals/to-primitive');\n\nvar FORCED = fails(function () {\n return new Date(NaN).toJSON() !== null\n || Date.prototype.toJSON.call({ toISOString: function () { return 1; } }) !== 1;\n});\n\n// `Date.prototype.toJSON` method\n// https://tc39.github.io/ecma262/#sec-date.prototype.tojson\n$({ target: 'Date', proto: true, forced: FORCED }, {\n // eslint-disable-next-line no-unused-vars\n toJSON: function toJSON(key) {\n var O = toObject(this);\n var pv = toPrimitive(O);\n return typeof pv == 'number' && !isFinite(pv) ? null : O.toISOString();\n }\n});\n","var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar dateToPrimitive = require('../internals/date-to-primitive');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar TO_PRIMITIVE = wellKnownSymbol('toPrimitive');\nvar DatePrototype = Date.prototype;\n\n// `Date.prototype[@@toPrimitive]` method\n// https://tc39.github.io/ecma262/#sec-date.prototype-@@toprimitive\nif (!(TO_PRIMITIVE in DatePrototype)) {\n createNonEnumerableProperty(DatePrototype, TO_PRIMITIVE, dateToPrimitive);\n}\n","var redefine = require('../internals/redefine');\n\nvar DatePrototype = Date.prototype;\nvar INVALID_DATE = 'Invalid Date';\nvar TO_STRING = 'toString';\nvar nativeDateToString = DatePrototype[TO_STRING];\nvar getTime = DatePrototype.getTime;\n\n// `Date.prototype.toString` method\n// https://tc39.github.io/ecma262/#sec-date.prototype.tostring\nif (new Date(NaN) + '' != INVALID_DATE) {\n redefine(DatePrototype, TO_STRING, function toString() {\n var value = getTime.call(this);\n // eslint-disable-next-line no-self-compare\n return value === value ? nativeDateToString.call(this) : INVALID_DATE;\n });\n}\n","var $ = require('../internals/export');\nvar bind = require('../internals/function-bind');\n\n// `Function.prototype.bind` method\n// https://tc39.github.io/ecma262/#sec-function.prototype.bind\n$({ target: 'Function', proto: true }, {\n bind: bind\n});\n","'use strict';\nvar isObject = require('../internals/is-object');\nvar definePropertyModule = require('../internals/object-define-property');\nvar getPrototypeOf = require('../internals/object-get-prototype-of');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar HAS_INSTANCE = wellKnownSymbol('hasInstance');\nvar FunctionPrototype = Function.prototype;\n\n// `Function.prototype[@@hasInstance]` method\n// https://tc39.github.io/ecma262/#sec-function.prototype-@@hasinstance\nif (!(HAS_INSTANCE in FunctionPrototype)) {\n definePropertyModule.f(FunctionPrototype, HAS_INSTANCE, { value: function (O) {\n if (typeof this != 'function' || !isObject(O)) return false;\n if (!isObject(this.prototype)) return O instanceof this;\n // for environment w/o native `@@hasInstance` logic enough `instanceof`, but add this:\n while (O = getPrototypeOf(O)) if (this.prototype === O) return true;\n return false;\n } });\n}\n","var DESCRIPTORS = require('../internals/descriptors');\nvar defineProperty = require('../internals/object-define-property').f;\n\nvar FunctionPrototype = Function.prototype;\nvar FunctionPrototypeToString = FunctionPrototype.toString;\nvar nameRE = /^\\s*function ([^ (]*)/;\nvar NAME = 'name';\n\n// Function instances `.name` property\n// https://tc39.github.io/ecma262/#sec-function-instances-name\nif (DESCRIPTORS && !(NAME in FunctionPrototype)) {\n defineProperty(FunctionPrototype, NAME, {\n configurable: true,\n get: function () {\n try {\n return FunctionPrototypeToString.call(this).match(nameRE)[1];\n } catch (error) {\n return '';\n }\n }\n });\n}\n","var $ = require('../internals/export');\nvar global = require('../internals/global');\n\n// `globalThis` object\n// https://github.com/tc39/proposal-global\n$({ global: true }, {\n globalThis: global\n});\n","var $ = require('../internals/export');\nvar getBuiltIn = require('../internals/get-built-in');\nvar fails = require('../internals/fails');\n\nvar $stringify = getBuiltIn('JSON', 'stringify');\nvar re = /[\\uD800-\\uDFFF]/g;\nvar low = /^[\\uD800-\\uDBFF]$/;\nvar hi = /^[\\uDC00-\\uDFFF]$/;\n\nvar fix = function (match, offset, string) {\n var prev = string.charAt(offset - 1);\n var next = string.charAt(offset + 1);\n if ((low.test(match) && !hi.test(next)) || (hi.test(match) && !low.test(prev))) {\n return '\\\\u' + match.charCodeAt(0).toString(16);\n } return match;\n};\n\nvar FORCED = fails(function () {\n return $stringify('\\uDF06\\uD834') !== '\"\\\\udf06\\\\ud834\"'\n || $stringify('\\uDEAD') !== '\"\\\\udead\"';\n});\n\nif ($stringify) {\n // https://github.com/tc39/proposal-well-formed-stringify\n $({ target: 'JSON', stat: true, forced: FORCED }, {\n // eslint-disable-next-line no-unused-vars\n stringify: function stringify(it, replacer, space) {\n var result = $stringify.apply(null, arguments);\n return typeof result == 'string' ? result.replace(re, fix) : result;\n }\n });\n}\n","var global = require('../internals/global');\nvar setToStringTag = require('../internals/set-to-string-tag');\n\n// JSON[@@toStringTag] property\n// https://tc39.github.io/ecma262/#sec-json-@@tostringtag\nsetToStringTag(global.JSON, 'JSON', true);\n","'use strict';\nvar collection = require('../internals/collection');\nvar collectionStrong = require('../internals/collection-strong');\n\n// `Map` constructor\n// https://tc39.github.io/ecma262/#sec-map-objects\nmodule.exports = collection('Map', function (init) {\n return function Map() { return init(this, arguments.length ? arguments[0] : undefined); };\n}, collectionStrong);\n","var $ = require('../internals/export');\nvar log1p = require('../internals/math-log1p');\n\nvar nativeAcosh = Math.acosh;\nvar log = Math.log;\nvar sqrt = Math.sqrt;\nvar LN2 = Math.LN2;\n\nvar FORCED = !nativeAcosh\n // V8 bug: https://code.google.com/p/v8/issues/detail?id=3509\n || Math.floor(nativeAcosh(Number.MAX_VALUE)) != 710\n // Tor Browser bug: Math.acosh(Infinity) -> NaN\n || nativeAcosh(Infinity) != Infinity;\n\n// `Math.acosh` method\n// https://tc39.github.io/ecma262/#sec-math.acosh\n$({ target: 'Math', stat: true, forced: FORCED }, {\n acosh: function acosh(x) {\n return (x = +x) < 1 ? NaN : x > 94906265.62425156\n ? log(x) + LN2\n : log1p(x - 1 + sqrt(x - 1) * sqrt(x + 1));\n }\n});\n","var $ = require('../internals/export');\n\nvar nativeAsinh = Math.asinh;\nvar log = Math.log;\nvar sqrt = Math.sqrt;\n\nfunction asinh(x) {\n return !isFinite(x = +x) || x == 0 ? x : x < 0 ? -asinh(-x) : log(x + sqrt(x * x + 1));\n}\n\n// `Math.asinh` method\n// https://tc39.github.io/ecma262/#sec-math.asinh\n// Tor Browser bug: Math.asinh(0) -> -0\n$({ target: 'Math', stat: true, forced: !(nativeAsinh && 1 / nativeAsinh(0) > 0) }, {\n asinh: asinh\n});\n","var $ = require('../internals/export');\n\nvar nativeAtanh = Math.atanh;\nvar log = Math.log;\n\n// `Math.atanh` method\n// https://tc39.github.io/ecma262/#sec-math.atanh\n// Tor Browser bug: Math.atanh(-0) -> 0\n$({ target: 'Math', stat: true, forced: !(nativeAtanh && 1 / nativeAtanh(-0) < 0) }, {\n atanh: function atanh(x) {\n return (x = +x) == 0 ? x : log((1 + x) / (1 - x)) / 2;\n }\n});\n","var $ = require('../internals/export');\nvar sign = require('../internals/math-sign');\n\nvar abs = Math.abs;\nvar pow = Math.pow;\n\n// `Math.cbrt` method\n// https://tc39.github.io/ecma262/#sec-math.cbrt\n$({ target: 'Math', stat: true }, {\n cbrt: function cbrt(x) {\n return sign(x = +x) * pow(abs(x), 1 / 3);\n }\n});\n","var $ = require('../internals/export');\n\nvar floor = Math.floor;\nvar log = Math.log;\nvar LOG2E = Math.LOG2E;\n\n// `Math.clz32` method\n// https://tc39.github.io/ecma262/#sec-math.clz32\n$({ target: 'Math', stat: true }, {\n clz32: function clz32(x) {\n return (x >>>= 0) ? 31 - floor(log(x + 0.5) * LOG2E) : 32;\n }\n});\n","var $ = require('../internals/export');\nvar expm1 = require('../internals/math-expm1');\n\nvar nativeCosh = Math.cosh;\nvar abs = Math.abs;\nvar E = Math.E;\n\n// `Math.cosh` method\n// https://tc39.github.io/ecma262/#sec-math.cosh\n$({ target: 'Math', stat: true, forced: !nativeCosh || nativeCosh(710) === Infinity }, {\n cosh: function cosh(x) {\n var t = expm1(abs(x) - 1) + 1;\n return (t + 1 / (t * E * E)) * (E / 2);\n }\n});\n","var $ = require('../internals/export');\nvar expm1 = require('../internals/math-expm1');\n\n// `Math.expm1` method\n// https://tc39.github.io/ecma262/#sec-math.expm1\n$({ target: 'Math', stat: true, forced: expm1 != Math.expm1 }, { expm1: expm1 });\n","var $ = require('../internals/export');\nvar fround = require('../internals/math-fround');\n\n// `Math.fround` method\n// https://tc39.github.io/ecma262/#sec-math.fround\n$({ target: 'Math', stat: true }, { fround: fround });\n","var $ = require('../internals/export');\n\nvar $hypot = Math.hypot;\nvar abs = Math.abs;\nvar sqrt = Math.sqrt;\n\n// Chrome 77 bug\n// https://bugs.chromium.org/p/v8/issues/detail?id=9546\nvar BUGGY = !!$hypot && $hypot(Infinity, NaN) !== Infinity;\n\n// `Math.hypot` method\n// https://tc39.github.io/ecma262/#sec-math.hypot\n$({ target: 'Math', stat: true, forced: BUGGY }, {\n hypot: function hypot(value1, value2) { // eslint-disable-line no-unused-vars\n var sum = 0;\n var i = 0;\n var aLen = arguments.length;\n var larg = 0;\n var arg, div;\n while (i < aLen) {\n arg = abs(arguments[i++]);\n if (larg < arg) {\n div = larg / arg;\n sum = sum * div * div + 1;\n larg = arg;\n } else if (arg > 0) {\n div = arg / larg;\n sum += div * div;\n } else sum += arg;\n }\n return larg === Infinity ? Infinity : larg * sqrt(sum);\n }\n});\n","var $ = require('../internals/export');\nvar fails = require('../internals/fails');\n\nvar nativeImul = Math.imul;\n\nvar FORCED = fails(function () {\n return nativeImul(0xFFFFFFFF, 5) != -5 || nativeImul.length != 2;\n});\n\n// `Math.imul` method\n// https://tc39.github.io/ecma262/#sec-math.imul\n// some WebKit versions fails with big numbers, some has wrong arity\n$({ target: 'Math', stat: true, forced: FORCED }, {\n imul: function imul(x, y) {\n var UINT16 = 0xFFFF;\n var xn = +x;\n var yn = +y;\n var xl = UINT16 & xn;\n var yl = UINT16 & yn;\n return 0 | xl * yl + ((UINT16 & xn >>> 16) * yl + xl * (UINT16 & yn >>> 16) << 16 >>> 0);\n }\n});\n","var $ = require('../internals/export');\n\nvar log = Math.log;\nvar LOG10E = Math.LOG10E;\n\n// `Math.log10` method\n// https://tc39.github.io/ecma262/#sec-math.log10\n$({ target: 'Math', stat: true }, {\n log10: function log10(x) {\n return log(x) * LOG10E;\n }\n});\n","var $ = require('../internals/export');\nvar log1p = require('../internals/math-log1p');\n\n// `Math.log1p` method\n// https://tc39.github.io/ecma262/#sec-math.log1p\n$({ target: 'Math', stat: true }, { log1p: log1p });\n","var $ = require('../internals/export');\n\nvar log = Math.log;\nvar LN2 = Math.LN2;\n\n// `Math.log2` method\n// https://tc39.github.io/ecma262/#sec-math.log2\n$({ target: 'Math', stat: true }, {\n log2: function log2(x) {\n return log(x) / LN2;\n }\n});\n","var $ = require('../internals/export');\nvar sign = require('../internals/math-sign');\n\n// `Math.sign` method\n// https://tc39.github.io/ecma262/#sec-math.sign\n$({ target: 'Math', stat: true }, {\n sign: sign\n});\n","var $ = require('../internals/export');\nvar fails = require('../internals/fails');\nvar expm1 = require('../internals/math-expm1');\n\nvar abs = Math.abs;\nvar exp = Math.exp;\nvar E = Math.E;\n\nvar FORCED = fails(function () {\n return Math.sinh(-2e-17) != -2e-17;\n});\n\n// `Math.sinh` method\n// https://tc39.github.io/ecma262/#sec-math.sinh\n// V8 near Chromium 38 has a problem with very small numbers\n$({ target: 'Math', stat: true, forced: FORCED }, {\n sinh: function sinh(x) {\n return abs(x = +x) < 1 ? (expm1(x) - expm1(-x)) / 2 : (exp(x - 1) - exp(-x - 1)) * (E / 2);\n }\n});\n","var $ = require('../internals/export');\nvar expm1 = require('../internals/math-expm1');\n\nvar exp = Math.exp;\n\n// `Math.tanh` method\n// https://tc39.github.io/ecma262/#sec-math.tanh\n$({ target: 'Math', stat: true }, {\n tanh: function tanh(x) {\n var a = expm1(x = +x);\n var b = expm1(-x);\n return a == Infinity ? 1 : b == Infinity ? -1 : (a - b) / (exp(x) + exp(-x));\n }\n});\n","var setToStringTag = require('../internals/set-to-string-tag');\n\n// Math[@@toStringTag] property\n// https://tc39.github.io/ecma262/#sec-math-@@tostringtag\nsetToStringTag(Math, 'Math', true);\n","var $ = require('../internals/export');\n\nvar ceil = Math.ceil;\nvar floor = Math.floor;\n\n// `Math.trunc` method\n// https://tc39.github.io/ecma262/#sec-math.trunc\n$({ target: 'Math', stat: true }, {\n trunc: function trunc(it) {\n return (it > 0 ? floor : ceil)(it);\n }\n});\n","'use strict';\nvar DESCRIPTORS = require('../internals/descriptors');\nvar global = require('../internals/global');\nvar isForced = require('../internals/is-forced');\nvar redefine = require('../internals/redefine');\nvar has = require('../internals/has');\nvar classof = require('../internals/classof-raw');\nvar inheritIfRequired = require('../internals/inherit-if-required');\nvar toPrimitive = require('../internals/to-primitive');\nvar fails = require('../internals/fails');\nvar create = require('../internals/object-create');\nvar getOwnPropertyNames = require('../internals/object-get-own-property-names').f;\nvar getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;\nvar defineProperty = require('../internals/object-define-property').f;\nvar trim = require('../internals/string-trim').trim;\n\nvar NUMBER = 'Number';\nvar NativeNumber = global[NUMBER];\nvar NumberPrototype = NativeNumber.prototype;\n\n// Opera ~12 has broken Object#toString\nvar BROKEN_CLASSOF = classof(create(NumberPrototype)) == NUMBER;\n\n// `ToNumber` abstract operation\n// https://tc39.github.io/ecma262/#sec-tonumber\nvar toNumber = function (argument) {\n var it = toPrimitive(argument, false);\n var first, third, radix, maxCode, digits, length, index, code;\n if (typeof it == 'string' && it.length > 2) {\n it = trim(it);\n first = it.charCodeAt(0);\n if (first === 43 || first === 45) {\n third = it.charCodeAt(2);\n if (third === 88 || third === 120) return NaN; // Number('+0x1') should be NaN, old V8 fix\n } else if (first === 48) {\n switch (it.charCodeAt(1)) {\n case 66: case 98: radix = 2; maxCode = 49; break; // fast equal of /^0b[01]+$/i\n case 79: case 111: radix = 8; maxCode = 55; break; // fast equal of /^0o[0-7]+$/i\n default: return +it;\n }\n digits = it.slice(2);\n length = digits.length;\n for (index = 0; index < length; index++) {\n code = digits.charCodeAt(index);\n // parseInt parses a string to a first unavailable symbol\n // but ToNumber should return NaN if a string contains unavailable symbols\n if (code < 48 || code > maxCode) return NaN;\n } return parseInt(digits, radix);\n }\n } return +it;\n};\n\n// `Number` constructor\n// https://tc39.github.io/ecma262/#sec-number-constructor\nif (isForced(NUMBER, !NativeNumber(' 0o1') || !NativeNumber('0b1') || NativeNumber('+0x1'))) {\n var NumberWrapper = function Number(value) {\n var it = arguments.length < 1 ? 0 : value;\n var dummy = this;\n return dummy instanceof NumberWrapper\n // check on 1..constructor(foo) case\n && (BROKEN_CLASSOF ? fails(function () { NumberPrototype.valueOf.call(dummy); }) : classof(dummy) != NUMBER)\n ? inheritIfRequired(new NativeNumber(toNumber(it)), dummy, NumberWrapper) : toNumber(it);\n };\n for (var keys = DESCRIPTORS ? getOwnPropertyNames(NativeNumber) : (\n // ES3:\n 'MAX_VALUE,MIN_VALUE,NaN,NEGATIVE_INFINITY,POSITIVE_INFINITY,' +\n // ES2015 (in case, if modules with ES2015 Number statics required before):\n 'EPSILON,isFinite,isInteger,isNaN,isSafeInteger,MAX_SAFE_INTEGER,' +\n 'MIN_SAFE_INTEGER,parseFloat,parseInt,isInteger'\n ).split(','), j = 0, key; keys.length > j; j++) {\n if (has(NativeNumber, key = keys[j]) && !has(NumberWrapper, key)) {\n defineProperty(NumberWrapper, key, getOwnPropertyDescriptor(NativeNumber, key));\n }\n }\n NumberWrapper.prototype = NumberPrototype;\n NumberPrototype.constructor = NumberWrapper;\n redefine(global, NUMBER, NumberWrapper);\n}\n","var $ = require('../internals/export');\n\n// `Number.EPSILON` constant\n// https://tc39.github.io/ecma262/#sec-number.epsilon\n$({ target: 'Number', stat: true }, {\n EPSILON: Math.pow(2, -52)\n});\n","var $ = require('../internals/export');\nvar numberIsFinite = require('../internals/number-is-finite');\n\n// `Number.isFinite` method\n// https://tc39.github.io/ecma262/#sec-number.isfinite\n$({ target: 'Number', stat: true }, { isFinite: numberIsFinite });\n","var $ = require('../internals/export');\nvar isInteger = require('../internals/is-integer');\n\n// `Number.isInteger` method\n// https://tc39.github.io/ecma262/#sec-number.isinteger\n$({ target: 'Number', stat: true }, {\n isInteger: isInteger\n});\n","var $ = require('../internals/export');\n\n// `Number.isNaN` method\n// https://tc39.github.io/ecma262/#sec-number.isnan\n$({ target: 'Number', stat: true }, {\n isNaN: function isNaN(number) {\n // eslint-disable-next-line no-self-compare\n return number != number;\n }\n});\n","var $ = require('../internals/export');\nvar isInteger = require('../internals/is-integer');\n\nvar abs = Math.abs;\n\n// `Number.isSafeInteger` method\n// https://tc39.github.io/ecma262/#sec-number.issafeinteger\n$({ target: 'Number', stat: true }, {\n isSafeInteger: function isSafeInteger(number) {\n return isInteger(number) && abs(number) <= 0x1FFFFFFFFFFFFF;\n }\n});\n","var $ = require('../internals/export');\n\n// `Number.MAX_SAFE_INTEGER` constant\n// https://tc39.github.io/ecma262/#sec-number.max_safe_integer\n$({ target: 'Number', stat: true }, {\n MAX_SAFE_INTEGER: 0x1FFFFFFFFFFFFF\n});\n","var $ = require('../internals/export');\n\n// `Number.MIN_SAFE_INTEGER` constant\n// https://tc39.github.io/ecma262/#sec-number.min_safe_integer\n$({ target: 'Number', stat: true }, {\n MIN_SAFE_INTEGER: -0x1FFFFFFFFFFFFF\n});\n","var $ = require('../internals/export');\nvar parseFloat = require('../internals/number-parse-float');\n\n// `Number.parseFloat` method\n// https://tc39.github.io/ecma262/#sec-number.parseFloat\n$({ target: 'Number', stat: true, forced: Number.parseFloat != parseFloat }, {\n parseFloat: parseFloat\n});\n","var $ = require('../internals/export');\nvar parseInt = require('../internals/number-parse-int');\n\n// `Number.parseInt` method\n// https://tc39.github.io/ecma262/#sec-number.parseint\n$({ target: 'Number', stat: true, forced: Number.parseInt != parseInt }, {\n parseInt: parseInt\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar toInteger = require('../internals/to-integer');\nvar thisNumberValue = require('../internals/this-number-value');\nvar repeat = require('../internals/string-repeat');\nvar fails = require('../internals/fails');\n\nvar nativeToFixed = 1.0.toFixed;\nvar floor = Math.floor;\n\nvar pow = function (x, n, acc) {\n return n === 0 ? acc : n % 2 === 1 ? pow(x, n - 1, acc * x) : pow(x * x, n / 2, acc);\n};\n\nvar log = function (x) {\n var n = 0;\n var x2 = x;\n while (x2 >= 4096) {\n n += 12;\n x2 /= 4096;\n }\n while (x2 >= 2) {\n n += 1;\n x2 /= 2;\n } return n;\n};\n\nvar FORCED = nativeToFixed && (\n 0.00008.toFixed(3) !== '0.000' ||\n 0.9.toFixed(0) !== '1' ||\n 1.255.toFixed(2) !== '1.25' ||\n 1000000000000000128.0.toFixed(0) !== '1000000000000000128'\n) || !fails(function () {\n // V8 ~ Android 4.3-\n nativeToFixed.call({});\n});\n\n// `Number.prototype.toFixed` method\n// https://tc39.github.io/ecma262/#sec-number.prototype.tofixed\n$({ target: 'Number', proto: true, forced: FORCED }, {\n // eslint-disable-next-line max-statements\n toFixed: function toFixed(fractionDigits) {\n var number = thisNumberValue(this);\n var fractDigits = toInteger(fractionDigits);\n var data = [0, 0, 0, 0, 0, 0];\n var sign = '';\n var result = '0';\n var e, z, j, k;\n\n var multiply = function (n, c) {\n var index = -1;\n var c2 = c;\n while (++index < 6) {\n c2 += n * data[index];\n data[index] = c2 % 1e7;\n c2 = floor(c2 / 1e7);\n }\n };\n\n var divide = function (n) {\n var index = 6;\n var c = 0;\n while (--index >= 0) {\n c += data[index];\n data[index] = floor(c / n);\n c = (c % n) * 1e7;\n }\n };\n\n var dataToString = function () {\n var index = 6;\n var s = '';\n while (--index >= 0) {\n if (s !== '' || index === 0 || data[index] !== 0) {\n var t = String(data[index]);\n s = s === '' ? t : s + repeat.call('0', 7 - t.length) + t;\n }\n } return s;\n };\n\n if (fractDigits < 0 || fractDigits > 20) throw RangeError('Incorrect fraction digits');\n // eslint-disable-next-line no-self-compare\n if (number != number) return 'NaN';\n if (number <= -1e21 || number >= 1e21) return String(number);\n if (number < 0) {\n sign = '-';\n number = -number;\n }\n if (number > 1e-21) {\n e = log(number * pow(2, 69, 1)) - 69;\n z = e < 0 ? number * pow(2, -e, 1) : number / pow(2, e, 1);\n z *= 0x10000000000000;\n e = 52 - e;\n if (e > 0) {\n multiply(0, z);\n j = fractDigits;\n while (j >= 7) {\n multiply(1e7, 0);\n j -= 7;\n }\n multiply(pow(10, j, 1), 0);\n j = e - 1;\n while (j >= 23) {\n divide(1 << 23);\n j -= 23;\n }\n divide(1 << j);\n multiply(1, 1);\n divide(2);\n result = dataToString();\n } else {\n multiply(0, z);\n multiply(1 << -e, 0);\n result = dataToString() + repeat.call('0', fractDigits);\n }\n }\n if (fractDigits > 0) {\n k = result.length;\n result = sign + (k <= fractDigits\n ? '0.' + repeat.call('0', fractDigits - k) + result\n : result.slice(0, k - fractDigits) + '.' + result.slice(k - fractDigits));\n } else {\n result = sign + result;\n } return result;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar fails = require('../internals/fails');\nvar thisNumberValue = require('../internals/this-number-value');\n\nvar nativeToPrecision = 1.0.toPrecision;\n\nvar FORCED = fails(function () {\n // IE7-\n return nativeToPrecision.call(1, undefined) !== '1';\n}) || !fails(function () {\n // V8 ~ Android 4.3-\n nativeToPrecision.call({});\n});\n\n// `Number.prototype.toPrecision` method\n// https://tc39.github.io/ecma262/#sec-number.prototype.toprecision\n$({ target: 'Number', proto: true, forced: FORCED }, {\n toPrecision: function toPrecision(precision) {\n return precision === undefined\n ? nativeToPrecision.call(thisNumberValue(this))\n : nativeToPrecision.call(thisNumberValue(this), precision);\n }\n});\n","var $ = require('../internals/export');\nvar assign = require('../internals/object-assign');\n\n// `Object.assign` method\n// https://tc39.github.io/ecma262/#sec-object.assign\n$({ target: 'Object', stat: true, forced: Object.assign !== assign }, {\n assign: assign\n});\n","var $ = require('../internals/export');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar create = require('../internals/object-create');\n\n// `Object.create` method\n// https://tc39.github.io/ecma262/#sec-object.create\n$({ target: 'Object', stat: true, sham: !DESCRIPTORS }, {\n create: create\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar FORCED = require('../internals/object-prototype-accessors-forced');\nvar toObject = require('../internals/to-object');\nvar aFunction = require('../internals/a-function');\nvar definePropertyModule = require('../internals/object-define-property');\n\n// `Object.prototype.__defineGetter__` method\n// https://tc39.github.io/ecma262/#sec-object.prototype.__defineGetter__\nif (DESCRIPTORS) {\n $({ target: 'Object', proto: true, forced: FORCED }, {\n __defineGetter__: function __defineGetter__(P, getter) {\n definePropertyModule.f(toObject(this), P, { get: aFunction(getter), enumerable: true, configurable: true });\n }\n });\n}\n","var $ = require('../internals/export');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar defineProperties = require('../internals/object-define-properties');\n\n// `Object.defineProperties` method\n// https://tc39.github.io/ecma262/#sec-object.defineproperties\n$({ target: 'Object', stat: true, forced: !DESCRIPTORS, sham: !DESCRIPTORS }, {\n defineProperties: defineProperties\n});\n","var $ = require('../internals/export');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar objectDefinePropertyModile = require('../internals/object-define-property');\n\n// `Object.defineProperty` method\n// https://tc39.github.io/ecma262/#sec-object.defineproperty\n$({ target: 'Object', stat: true, forced: !DESCRIPTORS, sham: !DESCRIPTORS }, {\n defineProperty: objectDefinePropertyModile.f\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar FORCED = require('../internals/object-prototype-accessors-forced');\nvar toObject = require('../internals/to-object');\nvar aFunction = require('../internals/a-function');\nvar definePropertyModule = require('../internals/object-define-property');\n\n// `Object.prototype.__defineSetter__` method\n// https://tc39.github.io/ecma262/#sec-object.prototype.__defineSetter__\nif (DESCRIPTORS) {\n $({ target: 'Object', proto: true, forced: FORCED }, {\n __defineSetter__: function __defineSetter__(P, setter) {\n definePropertyModule.f(toObject(this), P, { set: aFunction(setter), enumerable: true, configurable: true });\n }\n });\n}\n","var $ = require('../internals/export');\nvar $entries = require('../internals/object-to-array').entries;\n\n// `Object.entries` method\n// https://tc39.github.io/ecma262/#sec-object.entries\n$({ target: 'Object', stat: true }, {\n entries: function entries(O) {\n return $entries(O);\n }\n});\n","var $ = require('../internals/export');\nvar FREEZING = require('../internals/freezing');\nvar fails = require('../internals/fails');\nvar isObject = require('../internals/is-object');\nvar onFreeze = require('../internals/internal-metadata').onFreeze;\n\nvar nativeFreeze = Object.freeze;\nvar FAILS_ON_PRIMITIVES = fails(function () { nativeFreeze(1); });\n\n// `Object.freeze` method\n// https://tc39.github.io/ecma262/#sec-object.freeze\n$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES, sham: !FREEZING }, {\n freeze: function freeze(it) {\n return nativeFreeze && isObject(it) ? nativeFreeze(onFreeze(it)) : it;\n }\n});\n","var $ = require('../internals/export');\nvar iterate = require('../internals/iterate');\nvar createProperty = require('../internals/create-property');\n\n// `Object.fromEntries` method\n// https://github.com/tc39/proposal-object-from-entries\n$({ target: 'Object', stat: true }, {\n fromEntries: function fromEntries(iterable) {\n var obj = {};\n iterate(iterable, function (k, v) {\n createProperty(obj, k, v);\n }, undefined, true);\n return obj;\n }\n});\n","var $ = require('../internals/export');\nvar fails = require('../internals/fails');\nvar toIndexedObject = require('../internals/to-indexed-object');\nvar nativeGetOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;\nvar DESCRIPTORS = require('../internals/descriptors');\n\nvar FAILS_ON_PRIMITIVES = fails(function () { nativeGetOwnPropertyDescriptor(1); });\nvar FORCED = !DESCRIPTORS || FAILS_ON_PRIMITIVES;\n\n// `Object.getOwnPropertyDescriptor` method\n// https://tc39.github.io/ecma262/#sec-object.getownpropertydescriptor\n$({ target: 'Object', stat: true, forced: FORCED, sham: !DESCRIPTORS }, {\n getOwnPropertyDescriptor: function getOwnPropertyDescriptor(it, key) {\n return nativeGetOwnPropertyDescriptor(toIndexedObject(it), key);\n }\n});\n","var $ = require('../internals/export');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar ownKeys = require('../internals/own-keys');\nvar toIndexedObject = require('../internals/to-indexed-object');\nvar getOwnPropertyDescriptorModule = require('../internals/object-get-own-property-descriptor');\nvar createProperty = require('../internals/create-property');\n\n// `Object.getOwnPropertyDescriptors` method\n// https://tc39.github.io/ecma262/#sec-object.getownpropertydescriptors\n$({ target: 'Object', stat: true, sham: !DESCRIPTORS }, {\n getOwnPropertyDescriptors: function getOwnPropertyDescriptors(object) {\n var O = toIndexedObject(object);\n var getOwnPropertyDescriptor = getOwnPropertyDescriptorModule.f;\n var keys = ownKeys(O);\n var result = {};\n var index = 0;\n var key, descriptor;\n while (keys.length > index) {\n descriptor = getOwnPropertyDescriptor(O, key = keys[index++]);\n if (descriptor !== undefined) createProperty(result, key, descriptor);\n }\n return result;\n }\n});\n","var $ = require('../internals/export');\nvar fails = require('../internals/fails');\nvar nativeGetOwnPropertyNames = require('../internals/object-get-own-property-names-external').f;\n\nvar FAILS_ON_PRIMITIVES = fails(function () { return !Object.getOwnPropertyNames(1); });\n\n// `Object.getOwnPropertyNames` method\n// https://tc39.github.io/ecma262/#sec-object.getownpropertynames\n$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES }, {\n getOwnPropertyNames: nativeGetOwnPropertyNames\n});\n","var $ = require('../internals/export');\nvar fails = require('../internals/fails');\nvar toObject = require('../internals/to-object');\nvar nativeGetPrototypeOf = require('../internals/object-get-prototype-of');\nvar CORRECT_PROTOTYPE_GETTER = require('../internals/correct-prototype-getter');\n\nvar FAILS_ON_PRIMITIVES = fails(function () { nativeGetPrototypeOf(1); });\n\n// `Object.getPrototypeOf` method\n// https://tc39.github.io/ecma262/#sec-object.getprototypeof\n$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES, sham: !CORRECT_PROTOTYPE_GETTER }, {\n getPrototypeOf: function getPrototypeOf(it) {\n return nativeGetPrototypeOf(toObject(it));\n }\n});\n\n","var $ = require('../internals/export');\nvar fails = require('../internals/fails');\nvar isObject = require('../internals/is-object');\n\nvar nativeIsExtensible = Object.isExtensible;\nvar FAILS_ON_PRIMITIVES = fails(function () { nativeIsExtensible(1); });\n\n// `Object.isExtensible` method\n// https://tc39.github.io/ecma262/#sec-object.isextensible\n$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES }, {\n isExtensible: function isExtensible(it) {\n return isObject(it) ? nativeIsExtensible ? nativeIsExtensible(it) : true : false;\n }\n});\n","var $ = require('../internals/export');\nvar fails = require('../internals/fails');\nvar isObject = require('../internals/is-object');\n\nvar nativeIsFrozen = Object.isFrozen;\nvar FAILS_ON_PRIMITIVES = fails(function () { nativeIsFrozen(1); });\n\n// `Object.isFrozen` method\n// https://tc39.github.io/ecma262/#sec-object.isfrozen\n$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES }, {\n isFrozen: function isFrozen(it) {\n return isObject(it) ? nativeIsFrozen ? nativeIsFrozen(it) : false : true;\n }\n});\n","var $ = require('../internals/export');\nvar fails = require('../internals/fails');\nvar isObject = require('../internals/is-object');\n\nvar nativeIsSealed = Object.isSealed;\nvar FAILS_ON_PRIMITIVES = fails(function () { nativeIsSealed(1); });\n\n// `Object.isSealed` method\n// https://tc39.github.io/ecma262/#sec-object.issealed\n$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES }, {\n isSealed: function isSealed(it) {\n return isObject(it) ? nativeIsSealed ? nativeIsSealed(it) : false : true;\n }\n});\n","var $ = require('../internals/export');\nvar is = require('../internals/same-value');\n\n// `Object.is` method\n// https://tc39.github.io/ecma262/#sec-object.is\n$({ target: 'Object', stat: true }, {\n is: is\n});\n","var $ = require('../internals/export');\nvar toObject = require('../internals/to-object');\nvar nativeKeys = require('../internals/object-keys');\nvar fails = require('../internals/fails');\n\nvar FAILS_ON_PRIMITIVES = fails(function () { nativeKeys(1); });\n\n// `Object.keys` method\n// https://tc39.github.io/ecma262/#sec-object.keys\n$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES }, {\n keys: function keys(it) {\n return nativeKeys(toObject(it));\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar FORCED = require('../internals/object-prototype-accessors-forced');\nvar toObject = require('../internals/to-object');\nvar toPrimitive = require('../internals/to-primitive');\nvar getPrototypeOf = require('../internals/object-get-prototype-of');\nvar getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;\n\n// `Object.prototype.__lookupGetter__` method\n// https://tc39.github.io/ecma262/#sec-object.prototype.__lookupGetter__\nif (DESCRIPTORS) {\n $({ target: 'Object', proto: true, forced: FORCED }, {\n __lookupGetter__: function __lookupGetter__(P) {\n var O = toObject(this);\n var key = toPrimitive(P, true);\n var desc;\n do {\n if (desc = getOwnPropertyDescriptor(O, key)) return desc.get;\n } while (O = getPrototypeOf(O));\n }\n });\n}\n","'use strict';\nvar $ = require('../internals/export');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar FORCED = require('../internals/object-prototype-accessors-forced');\nvar toObject = require('../internals/to-object');\nvar toPrimitive = require('../internals/to-primitive');\nvar getPrototypeOf = require('../internals/object-get-prototype-of');\nvar getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;\n\n// `Object.prototype.__lookupSetter__` method\n// https://tc39.github.io/ecma262/#sec-object.prototype.__lookupSetter__\nif (DESCRIPTORS) {\n $({ target: 'Object', proto: true, forced: FORCED }, {\n __lookupSetter__: function __lookupSetter__(P) {\n var O = toObject(this);\n var key = toPrimitive(P, true);\n var desc;\n do {\n if (desc = getOwnPropertyDescriptor(O, key)) return desc.set;\n } while (O = getPrototypeOf(O));\n }\n });\n}\n","var $ = require('../internals/export');\nvar isObject = require('../internals/is-object');\nvar onFreeze = require('../internals/internal-metadata').onFreeze;\nvar FREEZING = require('../internals/freezing');\nvar fails = require('../internals/fails');\n\nvar nativePreventExtensions = Object.preventExtensions;\nvar FAILS_ON_PRIMITIVES = fails(function () { nativePreventExtensions(1); });\n\n// `Object.preventExtensions` method\n// https://tc39.github.io/ecma262/#sec-object.preventextensions\n$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES, sham: !FREEZING }, {\n preventExtensions: function preventExtensions(it) {\n return nativePreventExtensions && isObject(it) ? nativePreventExtensions(onFreeze(it)) : it;\n }\n});\n","var $ = require('../internals/export');\nvar isObject = require('../internals/is-object');\nvar onFreeze = require('../internals/internal-metadata').onFreeze;\nvar FREEZING = require('../internals/freezing');\nvar fails = require('../internals/fails');\n\nvar nativeSeal = Object.seal;\nvar FAILS_ON_PRIMITIVES = fails(function () { nativeSeal(1); });\n\n// `Object.seal` method\n// https://tc39.github.io/ecma262/#sec-object.seal\n$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES, sham: !FREEZING }, {\n seal: function seal(it) {\n return nativeSeal && isObject(it) ? nativeSeal(onFreeze(it)) : it;\n }\n});\n","var $ = require('../internals/export');\nvar setPrototypeOf = require('../internals/object-set-prototype-of');\n\n// `Object.setPrototypeOf` method\n// https://tc39.github.io/ecma262/#sec-object.setprototypeof\n$({ target: 'Object', stat: true }, {\n setPrototypeOf: setPrototypeOf\n});\n","var TO_STRING_TAG_SUPPORT = require('../internals/to-string-tag-support');\nvar redefine = require('../internals/redefine');\nvar toString = require('../internals/object-to-string');\n\n// `Object.prototype.toString` method\n// https://tc39.github.io/ecma262/#sec-object.prototype.tostring\nif (!TO_STRING_TAG_SUPPORT) {\n redefine(Object.prototype, 'toString', toString, { unsafe: true });\n}\n","var $ = require('../internals/export');\nvar $values = require('../internals/object-to-array').values;\n\n// `Object.values` method\n// https://tc39.github.io/ecma262/#sec-object.values\n$({ target: 'Object', stat: true }, {\n values: function values(O) {\n return $values(O);\n }\n});\n","var $ = require('../internals/export');\nvar parseFloatImplementation = require('../internals/number-parse-float');\n\n// `parseFloat` method\n// https://tc39.github.io/ecma262/#sec-parsefloat-string\n$({ global: true, forced: parseFloat != parseFloatImplementation }, {\n parseFloat: parseFloatImplementation\n});\n","var $ = require('../internals/export');\nvar parseIntImplementation = require('../internals/number-parse-int');\n\n// `parseInt` method\n// https://tc39.github.io/ecma262/#sec-parseint-string-radix\n$({ global: true, forced: parseInt != parseIntImplementation }, {\n parseInt: parseIntImplementation\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar aFunction = require('../internals/a-function');\nvar newPromiseCapabilityModule = require('../internals/new-promise-capability');\nvar perform = require('../internals/perform');\nvar iterate = require('../internals/iterate');\n\n// `Promise.allSettled` method\n// https://github.com/tc39/proposal-promise-allSettled\n$({ target: 'Promise', stat: true }, {\n allSettled: function allSettled(iterable) {\n var C = this;\n var capability = newPromiseCapabilityModule.f(C);\n var resolve = capability.resolve;\n var reject = capability.reject;\n var result = perform(function () {\n var promiseResolve = aFunction(C.resolve);\n var values = [];\n var counter = 0;\n var remaining = 1;\n iterate(iterable, function (promise) {\n var index = counter++;\n var alreadyCalled = false;\n values.push(undefined);\n remaining++;\n promiseResolve.call(C, promise).then(function (value) {\n if (alreadyCalled) return;\n alreadyCalled = true;\n values[index] = { status: 'fulfilled', value: value };\n --remaining || resolve(values);\n }, function (e) {\n if (alreadyCalled) return;\n alreadyCalled = true;\n values[index] = { status: 'rejected', reason: e };\n --remaining || resolve(values);\n });\n });\n --remaining || resolve(values);\n });\n if (result.error) reject(result.value);\n return capability.promise;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar NativePromise = require('../internals/native-promise-constructor');\nvar fails = require('../internals/fails');\nvar getBuiltIn = require('../internals/get-built-in');\nvar speciesConstructor = require('../internals/species-constructor');\nvar promiseResolve = require('../internals/promise-resolve');\nvar redefine = require('../internals/redefine');\n\n// Safari bug https://bugs.webkit.org/show_bug.cgi?id=200829\nvar NON_GENERIC = !!NativePromise && fails(function () {\n NativePromise.prototype['finally'].call({ then: function () { /* empty */ } }, function () { /* empty */ });\n});\n\n// `Promise.prototype.finally` method\n// https://tc39.github.io/ecma262/#sec-promise.prototype.finally\n$({ target: 'Promise', proto: true, real: true, forced: NON_GENERIC }, {\n 'finally': function (onFinally) {\n var C = speciesConstructor(this, getBuiltIn('Promise'));\n var isFunction = typeof onFinally == 'function';\n return this.then(\n isFunction ? function (x) {\n return promiseResolve(C, onFinally()).then(function () { return x; });\n } : onFinally,\n isFunction ? function (e) {\n return promiseResolve(C, onFinally()).then(function () { throw e; });\n } : onFinally\n );\n }\n});\n\n// patch native Promise.prototype for native async functions\nif (!IS_PURE && typeof NativePromise == 'function' && !NativePromise.prototype['finally']) {\n redefine(NativePromise.prototype, 'finally', getBuiltIn('Promise').prototype['finally']);\n}\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar global = require('../internals/global');\nvar getBuiltIn = require('../internals/get-built-in');\nvar NativePromise = require('../internals/native-promise-constructor');\nvar redefine = require('../internals/redefine');\nvar redefineAll = require('../internals/redefine-all');\nvar setToStringTag = require('../internals/set-to-string-tag');\nvar setSpecies = require('../internals/set-species');\nvar isObject = require('../internals/is-object');\nvar aFunction = require('../internals/a-function');\nvar anInstance = require('../internals/an-instance');\nvar classof = require('../internals/classof-raw');\nvar inspectSource = require('../internals/inspect-source');\nvar iterate = require('../internals/iterate');\nvar checkCorrectnessOfIteration = require('../internals/check-correctness-of-iteration');\nvar speciesConstructor = require('../internals/species-constructor');\nvar task = require('../internals/task').set;\nvar microtask = require('../internals/microtask');\nvar promiseResolve = require('../internals/promise-resolve');\nvar hostReportErrors = require('../internals/host-report-errors');\nvar newPromiseCapabilityModule = require('../internals/new-promise-capability');\nvar perform = require('../internals/perform');\nvar InternalStateModule = require('../internals/internal-state');\nvar isForced = require('../internals/is-forced');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar V8_VERSION = require('../internals/engine-v8-version');\n\nvar SPECIES = wellKnownSymbol('species');\nvar PROMISE = 'Promise';\nvar getInternalState = InternalStateModule.get;\nvar setInternalState = InternalStateModule.set;\nvar getInternalPromiseState = InternalStateModule.getterFor(PROMISE);\nvar PromiseConstructor = NativePromise;\nvar TypeError = global.TypeError;\nvar document = global.document;\nvar process = global.process;\nvar $fetch = getBuiltIn('fetch');\nvar newPromiseCapability = newPromiseCapabilityModule.f;\nvar newGenericPromiseCapability = newPromiseCapability;\nvar IS_NODE = classof(process) == 'process';\nvar DISPATCH_EVENT = !!(document && document.createEvent && global.dispatchEvent);\nvar UNHANDLED_REJECTION = 'unhandledrejection';\nvar REJECTION_HANDLED = 'rejectionhandled';\nvar PENDING = 0;\nvar FULFILLED = 1;\nvar REJECTED = 2;\nvar HANDLED = 1;\nvar UNHANDLED = 2;\nvar Internal, OwnPromiseCapability, PromiseWrapper, nativeThen;\n\nvar FORCED = isForced(PROMISE, function () {\n var GLOBAL_CORE_JS_PROMISE = inspectSource(PromiseConstructor) !== String(PromiseConstructor);\n if (!GLOBAL_CORE_JS_PROMISE) {\n // V8 6.6 (Node 10 and Chrome 66) have a bug with resolving custom thenables\n // https://bugs.chromium.org/p/chromium/issues/detail?id=830565\n // We can't detect it synchronously, so just check versions\n if (V8_VERSION === 66) return true;\n // Unhandled rejections tracking support, NodeJS Promise without it fails @@species test\n if (!IS_NODE && typeof PromiseRejectionEvent != 'function') return true;\n }\n // We need Promise#finally in the pure version for preventing prototype pollution\n if (IS_PURE && !PromiseConstructor.prototype['finally']) return true;\n // We can't use @@species feature detection in V8 since it causes\n // deoptimization and performance degradation\n // https://github.com/zloirock/core-js/issues/679\n if (V8_VERSION >= 51 && /native code/.test(PromiseConstructor)) return false;\n // Detect correctness of subclassing with @@species support\n var promise = PromiseConstructor.resolve(1);\n var FakePromise = function (exec) {\n exec(function () { /* empty */ }, function () { /* empty */ });\n };\n var constructor = promise.constructor = {};\n constructor[SPECIES] = FakePromise;\n return !(promise.then(function () { /* empty */ }) instanceof FakePromise);\n});\n\nvar INCORRECT_ITERATION = FORCED || !checkCorrectnessOfIteration(function (iterable) {\n PromiseConstructor.all(iterable)['catch'](function () { /* empty */ });\n});\n\n// helpers\nvar isThenable = function (it) {\n var then;\n return isObject(it) && typeof (then = it.then) == 'function' ? then : false;\n};\n\nvar notify = function (promise, state, isReject) {\n if (state.notified) return;\n state.notified = true;\n var chain = state.reactions;\n microtask(function () {\n var value = state.value;\n var ok = state.state == FULFILLED;\n var index = 0;\n // variable length - can't use forEach\n while (chain.length > index) {\n var reaction = chain[index++];\n var handler = ok ? reaction.ok : reaction.fail;\n var resolve = reaction.resolve;\n var reject = reaction.reject;\n var domain = reaction.domain;\n var result, then, exited;\n try {\n if (handler) {\n if (!ok) {\n if (state.rejection === UNHANDLED) onHandleUnhandled(promise, state);\n state.rejection = HANDLED;\n }\n if (handler === true) result = value;\n else {\n if (domain) domain.enter();\n result = handler(value); // can throw\n if (domain) {\n domain.exit();\n exited = true;\n }\n }\n if (result === reaction.promise) {\n reject(TypeError('Promise-chain cycle'));\n } else if (then = isThenable(result)) {\n then.call(result, resolve, reject);\n } else resolve(result);\n } else reject(value);\n } catch (error) {\n if (domain && !exited) domain.exit();\n reject(error);\n }\n }\n state.reactions = [];\n state.notified = false;\n if (isReject && !state.rejection) onUnhandled(promise, state);\n });\n};\n\nvar dispatchEvent = function (name, promise, reason) {\n var event, handler;\n if (DISPATCH_EVENT) {\n event = document.createEvent('Event');\n event.promise = promise;\n event.reason = reason;\n event.initEvent(name, false, true);\n global.dispatchEvent(event);\n } else event = { promise: promise, reason: reason };\n if (handler = global['on' + name]) handler(event);\n else if (name === UNHANDLED_REJECTION) hostReportErrors('Unhandled promise rejection', reason);\n};\n\nvar onUnhandled = function (promise, state) {\n task.call(global, function () {\n var value = state.value;\n var IS_UNHANDLED = isUnhandled(state);\n var result;\n if (IS_UNHANDLED) {\n result = perform(function () {\n if (IS_NODE) {\n process.emit('unhandledRejection', value, promise);\n } else dispatchEvent(UNHANDLED_REJECTION, promise, value);\n });\n // Browsers should not trigger `rejectionHandled` event if it was handled here, NodeJS - should\n state.rejection = IS_NODE || isUnhandled(state) ? UNHANDLED : HANDLED;\n if (result.error) throw result.value;\n }\n });\n};\n\nvar isUnhandled = function (state) {\n return state.rejection !== HANDLED && !state.parent;\n};\n\nvar onHandleUnhandled = function (promise, state) {\n task.call(global, function () {\n if (IS_NODE) {\n process.emit('rejectionHandled', promise);\n } else dispatchEvent(REJECTION_HANDLED, promise, state.value);\n });\n};\n\nvar bind = function (fn, promise, state, unwrap) {\n return function (value) {\n fn(promise, state, value, unwrap);\n };\n};\n\nvar internalReject = function (promise, state, value, unwrap) {\n if (state.done) return;\n state.done = true;\n if (unwrap) state = unwrap;\n state.value = value;\n state.state = REJECTED;\n notify(promise, state, true);\n};\n\nvar internalResolve = function (promise, state, value, unwrap) {\n if (state.done) return;\n state.done = true;\n if (unwrap) state = unwrap;\n try {\n if (promise === value) throw TypeError(\"Promise can't be resolved itself\");\n var then = isThenable(value);\n if (then) {\n microtask(function () {\n var wrapper = { done: false };\n try {\n then.call(value,\n bind(internalResolve, promise, wrapper, state),\n bind(internalReject, promise, wrapper, state)\n );\n } catch (error) {\n internalReject(promise, wrapper, error, state);\n }\n });\n } else {\n state.value = value;\n state.state = FULFILLED;\n notify(promise, state, false);\n }\n } catch (error) {\n internalReject(promise, { done: false }, error, state);\n }\n};\n\n// constructor polyfill\nif (FORCED) {\n // 25.4.3.1 Promise(executor)\n PromiseConstructor = function Promise(executor) {\n anInstance(this, PromiseConstructor, PROMISE);\n aFunction(executor);\n Internal.call(this);\n var state = getInternalState(this);\n try {\n executor(bind(internalResolve, this, state), bind(internalReject, this, state));\n } catch (error) {\n internalReject(this, state, error);\n }\n };\n // eslint-disable-next-line no-unused-vars\n Internal = function Promise(executor) {\n setInternalState(this, {\n type: PROMISE,\n done: false,\n notified: false,\n parent: false,\n reactions: [],\n rejection: false,\n state: PENDING,\n value: undefined\n });\n };\n Internal.prototype = redefineAll(PromiseConstructor.prototype, {\n // `Promise.prototype.then` method\n // https://tc39.github.io/ecma262/#sec-promise.prototype.then\n then: function then(onFulfilled, onRejected) {\n var state = getInternalPromiseState(this);\n var reaction = newPromiseCapability(speciesConstructor(this, PromiseConstructor));\n reaction.ok = typeof onFulfilled == 'function' ? onFulfilled : true;\n reaction.fail = typeof onRejected == 'function' && onRejected;\n reaction.domain = IS_NODE ? process.domain : undefined;\n state.parent = true;\n state.reactions.push(reaction);\n if (state.state != PENDING) notify(this, state, false);\n return reaction.promise;\n },\n // `Promise.prototype.catch` method\n // https://tc39.github.io/ecma262/#sec-promise.prototype.catch\n 'catch': function (onRejected) {\n return this.then(undefined, onRejected);\n }\n });\n OwnPromiseCapability = function () {\n var promise = new Internal();\n var state = getInternalState(promise);\n this.promise = promise;\n this.resolve = bind(internalResolve, promise, state);\n this.reject = bind(internalReject, promise, state);\n };\n newPromiseCapabilityModule.f = newPromiseCapability = function (C) {\n return C === PromiseConstructor || C === PromiseWrapper\n ? new OwnPromiseCapability(C)\n : newGenericPromiseCapability(C);\n };\n\n if (!IS_PURE && typeof NativePromise == 'function') {\n nativeThen = NativePromise.prototype.then;\n\n // wrap native Promise#then for native async functions\n redefine(NativePromise.prototype, 'then', function then(onFulfilled, onRejected) {\n var that = this;\n return new PromiseConstructor(function (resolve, reject) {\n nativeThen.call(that, resolve, reject);\n }).then(onFulfilled, onRejected);\n // https://github.com/zloirock/core-js/issues/640\n }, { unsafe: true });\n\n // wrap fetch result\n if (typeof $fetch == 'function') $({ global: true, enumerable: true, forced: true }, {\n // eslint-disable-next-line no-unused-vars\n fetch: function fetch(input /* , init */) {\n return promiseResolve(PromiseConstructor, $fetch.apply(global, arguments));\n }\n });\n }\n}\n\n$({ global: true, wrap: true, forced: FORCED }, {\n Promise: PromiseConstructor\n});\n\nsetToStringTag(PromiseConstructor, PROMISE, false, true);\nsetSpecies(PROMISE);\n\nPromiseWrapper = getBuiltIn(PROMISE);\n\n// statics\n$({ target: PROMISE, stat: true, forced: FORCED }, {\n // `Promise.reject` method\n // https://tc39.github.io/ecma262/#sec-promise.reject\n reject: function reject(r) {\n var capability = newPromiseCapability(this);\n capability.reject.call(undefined, r);\n return capability.promise;\n }\n});\n\n$({ target: PROMISE, stat: true, forced: IS_PURE || FORCED }, {\n // `Promise.resolve` method\n // https://tc39.github.io/ecma262/#sec-promise.resolve\n resolve: function resolve(x) {\n return promiseResolve(IS_PURE && this === PromiseWrapper ? PromiseConstructor : this, x);\n }\n});\n\n$({ target: PROMISE, stat: true, forced: INCORRECT_ITERATION }, {\n // `Promise.all` method\n // https://tc39.github.io/ecma262/#sec-promise.all\n all: function all(iterable) {\n var C = this;\n var capability = newPromiseCapability(C);\n var resolve = capability.resolve;\n var reject = capability.reject;\n var result = perform(function () {\n var $promiseResolve = aFunction(C.resolve);\n var values = [];\n var counter = 0;\n var remaining = 1;\n iterate(iterable, function (promise) {\n var index = counter++;\n var alreadyCalled = false;\n values.push(undefined);\n remaining++;\n $promiseResolve.call(C, promise).then(function (value) {\n if (alreadyCalled) return;\n alreadyCalled = true;\n values[index] = value;\n --remaining || resolve(values);\n }, reject);\n });\n --remaining || resolve(values);\n });\n if (result.error) reject(result.value);\n return capability.promise;\n },\n // `Promise.race` method\n // https://tc39.github.io/ecma262/#sec-promise.race\n race: function race(iterable) {\n var C = this;\n var capability = newPromiseCapability(C);\n var reject = capability.reject;\n var result = perform(function () {\n var $promiseResolve = aFunction(C.resolve);\n iterate(iterable, function (promise) {\n $promiseResolve.call(C, promise).then(capability.resolve, reject);\n });\n });\n if (result.error) reject(result.value);\n return capability.promise;\n }\n});\n","var $ = require('../internals/export');\nvar getBuiltIn = require('../internals/get-built-in');\nvar aFunction = require('../internals/a-function');\nvar anObject = require('../internals/an-object');\nvar fails = require('../internals/fails');\n\nvar nativeApply = getBuiltIn('Reflect', 'apply');\nvar functionApply = Function.apply;\n\n// MS Edge argumentsList argument is optional\nvar OPTIONAL_ARGUMENTS_LIST = !fails(function () {\n nativeApply(function () { /* empty */ });\n});\n\n// `Reflect.apply` method\n// https://tc39.github.io/ecma262/#sec-reflect.apply\n$({ target: 'Reflect', stat: true, forced: OPTIONAL_ARGUMENTS_LIST }, {\n apply: function apply(target, thisArgument, argumentsList) {\n aFunction(target);\n anObject(argumentsList);\n return nativeApply\n ? nativeApply(target, thisArgument, argumentsList)\n : functionApply.call(target, thisArgument, argumentsList);\n }\n});\n","var $ = require('../internals/export');\nvar getBuiltIn = require('../internals/get-built-in');\nvar aFunction = require('../internals/a-function');\nvar anObject = require('../internals/an-object');\nvar isObject = require('../internals/is-object');\nvar create = require('../internals/object-create');\nvar bind = require('../internals/function-bind');\nvar fails = require('../internals/fails');\n\nvar nativeConstruct = getBuiltIn('Reflect', 'construct');\n\n// `Reflect.construct` method\n// https://tc39.github.io/ecma262/#sec-reflect.construct\n// MS Edge supports only 2 arguments and argumentsList argument is optional\n// FF Nightly sets third argument as `new.target`, but does not create `this` from it\nvar NEW_TARGET_BUG = fails(function () {\n function F() { /* empty */ }\n return !(nativeConstruct(function () { /* empty */ }, [], F) instanceof F);\n});\nvar ARGS_BUG = !fails(function () {\n nativeConstruct(function () { /* empty */ });\n});\nvar FORCED = NEW_TARGET_BUG || ARGS_BUG;\n\n$({ target: 'Reflect', stat: true, forced: FORCED, sham: FORCED }, {\n construct: function construct(Target, args /* , newTarget */) {\n aFunction(Target);\n anObject(args);\n var newTarget = arguments.length < 3 ? Target : aFunction(arguments[2]);\n if (ARGS_BUG && !NEW_TARGET_BUG) return nativeConstruct(Target, args, newTarget);\n if (Target == newTarget) {\n // w/o altered newTarget, optimization for 0-4 arguments\n switch (args.length) {\n case 0: return new Target();\n case 1: return new Target(args[0]);\n case 2: return new Target(args[0], args[1]);\n case 3: return new Target(args[0], args[1], args[2]);\n case 4: return new Target(args[0], args[1], args[2], args[3]);\n }\n // w/o altered newTarget, lot of arguments case\n var $args = [null];\n $args.push.apply($args, args);\n return new (bind.apply(Target, $args))();\n }\n // with altered newTarget, not support built-in constructors\n var proto = newTarget.prototype;\n var instance = create(isObject(proto) ? proto : Object.prototype);\n var result = Function.apply.call(Target, instance, args);\n return isObject(result) ? result : instance;\n }\n});\n","var $ = require('../internals/export');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar anObject = require('../internals/an-object');\nvar toPrimitive = require('../internals/to-primitive');\nvar definePropertyModule = require('../internals/object-define-property');\nvar fails = require('../internals/fails');\n\n// MS Edge has broken Reflect.defineProperty - throwing instead of returning false\nvar ERROR_INSTEAD_OF_FALSE = fails(function () {\n // eslint-disable-next-line no-undef\n Reflect.defineProperty(definePropertyModule.f({}, 1, { value: 1 }), 1, { value: 2 });\n});\n\n// `Reflect.defineProperty` method\n// https://tc39.github.io/ecma262/#sec-reflect.defineproperty\n$({ target: 'Reflect', stat: true, forced: ERROR_INSTEAD_OF_FALSE, sham: !DESCRIPTORS }, {\n defineProperty: function defineProperty(target, propertyKey, attributes) {\n anObject(target);\n var key = toPrimitive(propertyKey, true);\n anObject(attributes);\n try {\n definePropertyModule.f(target, key, attributes);\n return true;\n } catch (error) {\n return false;\n }\n }\n});\n","var $ = require('../internals/export');\nvar anObject = require('../internals/an-object');\nvar getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;\n\n// `Reflect.deleteProperty` method\n// https://tc39.github.io/ecma262/#sec-reflect.deleteproperty\n$({ target: 'Reflect', stat: true }, {\n deleteProperty: function deleteProperty(target, propertyKey) {\n var descriptor = getOwnPropertyDescriptor(anObject(target), propertyKey);\n return descriptor && !descriptor.configurable ? false : delete target[propertyKey];\n }\n});\n","var $ = require('../internals/export');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar anObject = require('../internals/an-object');\nvar getOwnPropertyDescriptorModule = require('../internals/object-get-own-property-descriptor');\n\n// `Reflect.getOwnPropertyDescriptor` method\n// https://tc39.github.io/ecma262/#sec-reflect.getownpropertydescriptor\n$({ target: 'Reflect', stat: true, sham: !DESCRIPTORS }, {\n getOwnPropertyDescriptor: function getOwnPropertyDescriptor(target, propertyKey) {\n return getOwnPropertyDescriptorModule.f(anObject(target), propertyKey);\n }\n});\n","var $ = require('../internals/export');\nvar anObject = require('../internals/an-object');\nvar objectGetPrototypeOf = require('../internals/object-get-prototype-of');\nvar CORRECT_PROTOTYPE_GETTER = require('../internals/correct-prototype-getter');\n\n// `Reflect.getPrototypeOf` method\n// https://tc39.github.io/ecma262/#sec-reflect.getprototypeof\n$({ target: 'Reflect', stat: true, sham: !CORRECT_PROTOTYPE_GETTER }, {\n getPrototypeOf: function getPrototypeOf(target) {\n return objectGetPrototypeOf(anObject(target));\n }\n});\n","var $ = require('../internals/export');\nvar isObject = require('../internals/is-object');\nvar anObject = require('../internals/an-object');\nvar has = require('../internals/has');\nvar getOwnPropertyDescriptorModule = require('../internals/object-get-own-property-descriptor');\nvar getPrototypeOf = require('../internals/object-get-prototype-of');\n\n// `Reflect.get` method\n// https://tc39.github.io/ecma262/#sec-reflect.get\nfunction get(target, propertyKey /* , receiver */) {\n var receiver = arguments.length < 3 ? target : arguments[2];\n var descriptor, prototype;\n if (anObject(target) === receiver) return target[propertyKey];\n if (descriptor = getOwnPropertyDescriptorModule.f(target, propertyKey)) return has(descriptor, 'value')\n ? descriptor.value\n : descriptor.get === undefined\n ? undefined\n : descriptor.get.call(receiver);\n if (isObject(prototype = getPrototypeOf(target))) return get(prototype, propertyKey, receiver);\n}\n\n$({ target: 'Reflect', stat: true }, {\n get: get\n});\n","var $ = require('../internals/export');\n\n// `Reflect.has` method\n// https://tc39.github.io/ecma262/#sec-reflect.has\n$({ target: 'Reflect', stat: true }, {\n has: function has(target, propertyKey) {\n return propertyKey in target;\n }\n});\n","var $ = require('../internals/export');\nvar anObject = require('../internals/an-object');\n\nvar objectIsExtensible = Object.isExtensible;\n\n// `Reflect.isExtensible` method\n// https://tc39.github.io/ecma262/#sec-reflect.isextensible\n$({ target: 'Reflect', stat: true }, {\n isExtensible: function isExtensible(target) {\n anObject(target);\n return objectIsExtensible ? objectIsExtensible(target) : true;\n }\n});\n","var $ = require('../internals/export');\nvar ownKeys = require('../internals/own-keys');\n\n// `Reflect.ownKeys` method\n// https://tc39.github.io/ecma262/#sec-reflect.ownkeys\n$({ target: 'Reflect', stat: true }, {\n ownKeys: ownKeys\n});\n","var $ = require('../internals/export');\nvar getBuiltIn = require('../internals/get-built-in');\nvar anObject = require('../internals/an-object');\nvar FREEZING = require('../internals/freezing');\n\n// `Reflect.preventExtensions` method\n// https://tc39.github.io/ecma262/#sec-reflect.preventextensions\n$({ target: 'Reflect', stat: true, sham: !FREEZING }, {\n preventExtensions: function preventExtensions(target) {\n anObject(target);\n try {\n var objectPreventExtensions = getBuiltIn('Object', 'preventExtensions');\n if (objectPreventExtensions) objectPreventExtensions(target);\n return true;\n } catch (error) {\n return false;\n }\n }\n});\n","var $ = require('../internals/export');\nvar anObject = require('../internals/an-object');\nvar aPossiblePrototype = require('../internals/a-possible-prototype');\nvar objectSetPrototypeOf = require('../internals/object-set-prototype-of');\n\n// `Reflect.setPrototypeOf` method\n// https://tc39.github.io/ecma262/#sec-reflect.setprototypeof\nif (objectSetPrototypeOf) $({ target: 'Reflect', stat: true }, {\n setPrototypeOf: function setPrototypeOf(target, proto) {\n anObject(target);\n aPossiblePrototype(proto);\n try {\n objectSetPrototypeOf(target, proto);\n return true;\n } catch (error) {\n return false;\n }\n }\n});\n","var $ = require('../internals/export');\nvar anObject = require('../internals/an-object');\nvar isObject = require('../internals/is-object');\nvar has = require('../internals/has');\nvar fails = require('../internals/fails');\nvar definePropertyModule = require('../internals/object-define-property');\nvar getOwnPropertyDescriptorModule = require('../internals/object-get-own-property-descriptor');\nvar getPrototypeOf = require('../internals/object-get-prototype-of');\nvar createPropertyDescriptor = require('../internals/create-property-descriptor');\n\n// `Reflect.set` method\n// https://tc39.github.io/ecma262/#sec-reflect.set\nfunction set(target, propertyKey, V /* , receiver */) {\n var receiver = arguments.length < 4 ? target : arguments[3];\n var ownDescriptor = getOwnPropertyDescriptorModule.f(anObject(target), propertyKey);\n var existingDescriptor, prototype;\n if (!ownDescriptor) {\n if (isObject(prototype = getPrototypeOf(target))) {\n return set(prototype, propertyKey, V, receiver);\n }\n ownDescriptor = createPropertyDescriptor(0);\n }\n if (has(ownDescriptor, 'value')) {\n if (ownDescriptor.writable === false || !isObject(receiver)) return false;\n if (existingDescriptor = getOwnPropertyDescriptorModule.f(receiver, propertyKey)) {\n if (existingDescriptor.get || existingDescriptor.set || existingDescriptor.writable === false) return false;\n existingDescriptor.value = V;\n definePropertyModule.f(receiver, propertyKey, existingDescriptor);\n } else definePropertyModule.f(receiver, propertyKey, createPropertyDescriptor(0, V));\n return true;\n }\n return ownDescriptor.set === undefined ? false : (ownDescriptor.set.call(receiver, V), true);\n}\n\n// MS Edge 17-18 Reflect.set allows setting the property to object\n// with non-writable property on the prototype\nvar MS_EDGE_BUG = fails(function () {\n var object = definePropertyModule.f({}, 'a', { configurable: true });\n // eslint-disable-next-line no-undef\n return Reflect.set(getPrototypeOf(object), 'a', 1, object) !== false;\n});\n\n$({ target: 'Reflect', stat: true, forced: MS_EDGE_BUG }, {\n set: set\n});\n","var DESCRIPTORS = require('../internals/descriptors');\nvar global = require('../internals/global');\nvar isForced = require('../internals/is-forced');\nvar inheritIfRequired = require('../internals/inherit-if-required');\nvar defineProperty = require('../internals/object-define-property').f;\nvar getOwnPropertyNames = require('../internals/object-get-own-property-names').f;\nvar isRegExp = require('../internals/is-regexp');\nvar getFlags = require('../internals/regexp-flags');\nvar stickyHelpers = require('../internals/regexp-sticky-helpers');\nvar redefine = require('../internals/redefine');\nvar fails = require('../internals/fails');\nvar setInternalState = require('../internals/internal-state').set;\nvar setSpecies = require('../internals/set-species');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar MATCH = wellKnownSymbol('match');\nvar NativeRegExp = global.RegExp;\nvar RegExpPrototype = NativeRegExp.prototype;\nvar re1 = /a/g;\nvar re2 = /a/g;\n\n// \"new\" should create a new object, old webkit bug\nvar CORRECT_NEW = new NativeRegExp(re1) !== re1;\n\nvar UNSUPPORTED_Y = stickyHelpers.UNSUPPORTED_Y;\n\nvar FORCED = DESCRIPTORS && isForced('RegExp', (!CORRECT_NEW || UNSUPPORTED_Y || fails(function () {\n re2[MATCH] = false;\n // RegExp constructor can alter flags and IsRegExp works correct with @@match\n return NativeRegExp(re1) != re1 || NativeRegExp(re2) == re2 || NativeRegExp(re1, 'i') != '/a/i';\n})));\n\n// `RegExp` constructor\n// https://tc39.github.io/ecma262/#sec-regexp-constructor\nif (FORCED) {\n var RegExpWrapper = function RegExp(pattern, flags) {\n var thisIsRegExp = this instanceof RegExpWrapper;\n var patternIsRegExp = isRegExp(pattern);\n var flagsAreUndefined = flags === undefined;\n var sticky;\n\n if (!thisIsRegExp && patternIsRegExp && pattern.constructor === RegExpWrapper && flagsAreUndefined) {\n return pattern;\n }\n\n if (CORRECT_NEW) {\n if (patternIsRegExp && !flagsAreUndefined) pattern = pattern.source;\n } else if (pattern instanceof RegExpWrapper) {\n if (flagsAreUndefined) flags = getFlags.call(pattern);\n pattern = pattern.source;\n }\n\n if (UNSUPPORTED_Y) {\n sticky = !!flags && flags.indexOf('y') > -1;\n if (sticky) flags = flags.replace(/y/g, '');\n }\n\n var result = inheritIfRequired(\n CORRECT_NEW ? new NativeRegExp(pattern, flags) : NativeRegExp(pattern, flags),\n thisIsRegExp ? this : RegExpPrototype,\n RegExpWrapper\n );\n\n if (UNSUPPORTED_Y && sticky) setInternalState(result, { sticky: sticky });\n\n return result;\n };\n var proxy = function (key) {\n key in RegExpWrapper || defineProperty(RegExpWrapper, key, {\n configurable: true,\n get: function () { return NativeRegExp[key]; },\n set: function (it) { NativeRegExp[key] = it; }\n });\n };\n var keys = getOwnPropertyNames(NativeRegExp);\n var index = 0;\n while (keys.length > index) proxy(keys[index++]);\n RegExpPrototype.constructor = RegExpWrapper;\n RegExpWrapper.prototype = RegExpPrototype;\n redefine(global, 'RegExp', RegExpWrapper);\n}\n\n// https://tc39.github.io/ecma262/#sec-get-regexp-@@species\nsetSpecies('RegExp');\n","'use strict';\nvar $ = require('../internals/export');\nvar exec = require('../internals/regexp-exec');\n\n$({ target: 'RegExp', proto: true, forced: /./.exec !== exec }, {\n exec: exec\n});\n","var DESCRIPTORS = require('../internals/descriptors');\nvar objectDefinePropertyModule = require('../internals/object-define-property');\nvar regExpFlags = require('../internals/regexp-flags');\nvar UNSUPPORTED_Y = require('../internals/regexp-sticky-helpers').UNSUPPORTED_Y;\n\n// `RegExp.prototype.flags` getter\n// https://tc39.github.io/ecma262/#sec-get-regexp.prototype.flags\nif (DESCRIPTORS && (/./g.flags != 'g' || UNSUPPORTED_Y)) {\n objectDefinePropertyModule.f(RegExp.prototype, 'flags', {\n configurable: true,\n get: regExpFlags\n });\n}\n","var DESCRIPTORS = require('../internals/descriptors');\nvar UNSUPPORTED_Y = require('../internals/regexp-sticky-helpers').UNSUPPORTED_Y;\nvar defineProperty = require('../internals/object-define-property').f;\nvar getInternalState = require('../internals/internal-state').get;\nvar RegExpPrototype = RegExp.prototype;\n\n// `RegExp.prototype.sticky` getter\nif (DESCRIPTORS && UNSUPPORTED_Y) {\n defineProperty(RegExp.prototype, 'sticky', {\n configurable: true,\n get: function () {\n if (this === RegExpPrototype) return undefined;\n // We can't use InternalStateModule.getterFor because\n // we don't add metadata for regexps created by a literal.\n if (this instanceof RegExp) {\n return !!getInternalState(this).sticky;\n }\n throw TypeError('Incompatible receiver, RegExp required');\n }\n });\n}\n","'use strict';\n// TODO: Remove from `core-js@4` since it's moved to entry points\nrequire('../modules/es.regexp.exec');\nvar $ = require('../internals/export');\nvar isObject = require('../internals/is-object');\n\nvar DELEGATES_TO_EXEC = function () {\n var execCalled = false;\n var re = /[ac]/;\n re.exec = function () {\n execCalled = true;\n return /./.exec.apply(this, arguments);\n };\n return re.test('abc') === true && execCalled;\n}();\n\nvar nativeTest = /./.test;\n\n$({ target: 'RegExp', proto: true, forced: !DELEGATES_TO_EXEC }, {\n test: function (str) {\n if (typeof this.exec !== 'function') {\n return nativeTest.call(this, str);\n }\n var result = this.exec(str);\n if (result !== null && !isObject(result)) {\n throw new Error('RegExp exec method returned something other than an Object or null');\n }\n return !!result;\n }\n});\n","'use strict';\nvar redefine = require('../internals/redefine');\nvar anObject = require('../internals/an-object');\nvar fails = require('../internals/fails');\nvar flags = require('../internals/regexp-flags');\n\nvar TO_STRING = 'toString';\nvar RegExpPrototype = RegExp.prototype;\nvar nativeToString = RegExpPrototype[TO_STRING];\n\nvar NOT_GENERIC = fails(function () { return nativeToString.call({ source: 'a', flags: 'b' }) != '/a/b'; });\n// FF44- RegExp#toString has a wrong name\nvar INCORRECT_NAME = nativeToString.name != TO_STRING;\n\n// `RegExp.prototype.toString` method\n// https://tc39.github.io/ecma262/#sec-regexp.prototype.tostring\nif (NOT_GENERIC || INCORRECT_NAME) {\n redefine(RegExp.prototype, TO_STRING, function toString() {\n var R = anObject(this);\n var p = String(R.source);\n var rf = R.flags;\n var f = String(rf === undefined && R instanceof RegExp && !('flags' in RegExpPrototype) ? flags.call(R) : rf);\n return '/' + p + '/' + f;\n }, { unsafe: true });\n}\n","'use strict';\nvar collection = require('../internals/collection');\nvar collectionStrong = require('../internals/collection-strong');\n\n// `Set` constructor\n// https://tc39.github.io/ecma262/#sec-set-objects\nmodule.exports = collection('Set', function (init) {\n return function Set() { return init(this, arguments.length ? arguments[0] : undefined); };\n}, collectionStrong);\n","'use strict';\nvar $ = require('../internals/export');\nvar createHTML = require('../internals/create-html');\nvar forcedStringHTMLMethod = require('../internals/string-html-forced');\n\n// `String.prototype.anchor` method\n// https://tc39.github.io/ecma262/#sec-string.prototype.anchor\n$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('anchor') }, {\n anchor: function anchor(name) {\n return createHTML(this, 'a', 'name', name);\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar createHTML = require('../internals/create-html');\nvar forcedStringHTMLMethod = require('../internals/string-html-forced');\n\n// `String.prototype.big` method\n// https://tc39.github.io/ecma262/#sec-string.prototype.big\n$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('big') }, {\n big: function big() {\n return createHTML(this, 'big', '', '');\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar createHTML = require('../internals/create-html');\nvar forcedStringHTMLMethod = require('../internals/string-html-forced');\n\n// `String.prototype.blink` method\n// https://tc39.github.io/ecma262/#sec-string.prototype.blink\n$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('blink') }, {\n blink: function blink() {\n return createHTML(this, 'blink', '', '');\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar createHTML = require('../internals/create-html');\nvar forcedStringHTMLMethod = require('../internals/string-html-forced');\n\n// `String.prototype.bold` method\n// https://tc39.github.io/ecma262/#sec-string.prototype.bold\n$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('bold') }, {\n bold: function bold() {\n return createHTML(this, 'b', '', '');\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar codeAt = require('../internals/string-multibyte').codeAt;\n\n// `String.prototype.codePointAt` method\n// https://tc39.github.io/ecma262/#sec-string.prototype.codepointat\n$({ target: 'String', proto: true }, {\n codePointAt: function codePointAt(pos) {\n return codeAt(this, pos);\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;\nvar toLength = require('../internals/to-length');\nvar notARegExp = require('../internals/not-a-regexp');\nvar requireObjectCoercible = require('../internals/require-object-coercible');\nvar correctIsRegExpLogic = require('../internals/correct-is-regexp-logic');\nvar IS_PURE = require('../internals/is-pure');\n\nvar nativeEndsWith = ''.endsWith;\nvar min = Math.min;\n\nvar CORRECT_IS_REGEXP_LOGIC = correctIsRegExpLogic('endsWith');\n// https://github.com/zloirock/core-js/pull/702\nvar MDN_POLYFILL_BUG = !IS_PURE && !CORRECT_IS_REGEXP_LOGIC && !!function () {\n var descriptor = getOwnPropertyDescriptor(String.prototype, 'endsWith');\n return descriptor && !descriptor.writable;\n}();\n\n// `String.prototype.endsWith` method\n// https://tc39.github.io/ecma262/#sec-string.prototype.endswith\n$({ target: 'String', proto: true, forced: !MDN_POLYFILL_BUG && !CORRECT_IS_REGEXP_LOGIC }, {\n endsWith: function endsWith(searchString /* , endPosition = @length */) {\n var that = String(requireObjectCoercible(this));\n notARegExp(searchString);\n var endPosition = arguments.length > 1 ? arguments[1] : undefined;\n var len = toLength(that.length);\n var end = endPosition === undefined ? len : min(toLength(endPosition), len);\n var search = String(searchString);\n return nativeEndsWith\n ? nativeEndsWith.call(that, search, end)\n : that.slice(end - search.length, end) === search;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar createHTML = require('../internals/create-html');\nvar forcedStringHTMLMethod = require('../internals/string-html-forced');\n\n// `String.prototype.fixed` method\n// https://tc39.github.io/ecma262/#sec-string.prototype.fixed\n$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('fixed') }, {\n fixed: function fixed() {\n return createHTML(this, 'tt', '', '');\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar createHTML = require('../internals/create-html');\nvar forcedStringHTMLMethod = require('../internals/string-html-forced');\n\n// `String.prototype.fontcolor` method\n// https://tc39.github.io/ecma262/#sec-string.prototype.fontcolor\n$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('fontcolor') }, {\n fontcolor: function fontcolor(color) {\n return createHTML(this, 'font', 'color', color);\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar createHTML = require('../internals/create-html');\nvar forcedStringHTMLMethod = require('../internals/string-html-forced');\n\n// `String.prototype.fontsize` method\n// https://tc39.github.io/ecma262/#sec-string.prototype.fontsize\n$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('fontsize') }, {\n fontsize: function fontsize(size) {\n return createHTML(this, 'font', 'size', size);\n }\n});\n","var $ = require('../internals/export');\nvar toAbsoluteIndex = require('../internals/to-absolute-index');\n\nvar fromCharCode = String.fromCharCode;\nvar nativeFromCodePoint = String.fromCodePoint;\n\n// length should be 1, old FF problem\nvar INCORRECT_LENGTH = !!nativeFromCodePoint && nativeFromCodePoint.length != 1;\n\n// `String.fromCodePoint` method\n// https://tc39.github.io/ecma262/#sec-string.fromcodepoint\n$({ target: 'String', stat: true, forced: INCORRECT_LENGTH }, {\n fromCodePoint: function fromCodePoint(x) { // eslint-disable-line no-unused-vars\n var elements = [];\n var length = arguments.length;\n var i = 0;\n var code;\n while (length > i) {\n code = +arguments[i++];\n if (toAbsoluteIndex(code, 0x10FFFF) !== code) throw RangeError(code + ' is not a valid code point');\n elements.push(code < 0x10000\n ? fromCharCode(code)\n : fromCharCode(((code -= 0x10000) >> 10) + 0xD800, code % 0x400 + 0xDC00)\n );\n } return elements.join('');\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar notARegExp = require('../internals/not-a-regexp');\nvar requireObjectCoercible = require('../internals/require-object-coercible');\nvar correctIsRegExpLogic = require('../internals/correct-is-regexp-logic');\n\n// `String.prototype.includes` method\n// https://tc39.github.io/ecma262/#sec-string.prototype.includes\n$({ target: 'String', proto: true, forced: !correctIsRegExpLogic('includes') }, {\n includes: function includes(searchString /* , position = 0 */) {\n return !!~String(requireObjectCoercible(this))\n .indexOf(notARegExp(searchString), arguments.length > 1 ? arguments[1] : undefined);\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar createHTML = require('../internals/create-html');\nvar forcedStringHTMLMethod = require('../internals/string-html-forced');\n\n// `String.prototype.italics` method\n// https://tc39.github.io/ecma262/#sec-string.prototype.italics\n$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('italics') }, {\n italics: function italics() {\n return createHTML(this, 'i', '', '');\n }\n});\n","'use strict';\nvar charAt = require('../internals/string-multibyte').charAt;\nvar InternalStateModule = require('../internals/internal-state');\nvar defineIterator = require('../internals/define-iterator');\n\nvar STRING_ITERATOR = 'String Iterator';\nvar setInternalState = InternalStateModule.set;\nvar getInternalState = InternalStateModule.getterFor(STRING_ITERATOR);\n\n// `String.prototype[@@iterator]` method\n// https://tc39.github.io/ecma262/#sec-string.prototype-@@iterator\ndefineIterator(String, 'String', function (iterated) {\n setInternalState(this, {\n type: STRING_ITERATOR,\n string: String(iterated),\n index: 0\n });\n// `%StringIteratorPrototype%.next` method\n// https://tc39.github.io/ecma262/#sec-%stringiteratorprototype%.next\n}, function next() {\n var state = getInternalState(this);\n var string = state.string;\n var index = state.index;\n var point;\n if (index >= string.length) return { value: undefined, done: true };\n point = charAt(string, index);\n state.index += point.length;\n return { value: point, done: false };\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar createHTML = require('../internals/create-html');\nvar forcedStringHTMLMethod = require('../internals/string-html-forced');\n\n// `String.prototype.link` method\n// https://tc39.github.io/ecma262/#sec-string.prototype.link\n$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('link') }, {\n link: function link(url) {\n return createHTML(this, 'a', 'href', url);\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar createIteratorConstructor = require('../internals/create-iterator-constructor');\nvar requireObjectCoercible = require('../internals/require-object-coercible');\nvar toLength = require('../internals/to-length');\nvar aFunction = require('../internals/a-function');\nvar anObject = require('../internals/an-object');\nvar classof = require('../internals/classof-raw');\nvar isRegExp = require('../internals/is-regexp');\nvar getRegExpFlags = require('../internals/regexp-flags');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar fails = require('../internals/fails');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar speciesConstructor = require('../internals/species-constructor');\nvar advanceStringIndex = require('../internals/advance-string-index');\nvar InternalStateModule = require('../internals/internal-state');\nvar IS_PURE = require('../internals/is-pure');\n\nvar MATCH_ALL = wellKnownSymbol('matchAll');\nvar REGEXP_STRING = 'RegExp String';\nvar REGEXP_STRING_ITERATOR = REGEXP_STRING + ' Iterator';\nvar setInternalState = InternalStateModule.set;\nvar getInternalState = InternalStateModule.getterFor(REGEXP_STRING_ITERATOR);\nvar RegExpPrototype = RegExp.prototype;\nvar regExpBuiltinExec = RegExpPrototype.exec;\nvar nativeMatchAll = ''.matchAll;\n\nvar WORKS_WITH_NON_GLOBAL_REGEX = !!nativeMatchAll && !fails(function () {\n 'a'.matchAll(/./);\n});\n\nvar regExpExec = function (R, S) {\n var exec = R.exec;\n var result;\n if (typeof exec == 'function') {\n result = exec.call(R, S);\n if (typeof result != 'object') throw TypeError('Incorrect exec result');\n return result;\n } return regExpBuiltinExec.call(R, S);\n};\n\n// eslint-disable-next-line max-len\nvar $RegExpStringIterator = createIteratorConstructor(function RegExpStringIterator(regexp, string, global, fullUnicode) {\n setInternalState(this, {\n type: REGEXP_STRING_ITERATOR,\n regexp: regexp,\n string: string,\n global: global,\n unicode: fullUnicode,\n done: false\n });\n}, REGEXP_STRING, function next() {\n var state = getInternalState(this);\n if (state.done) return { value: undefined, done: true };\n var R = state.regexp;\n var S = state.string;\n var match = regExpExec(R, S);\n if (match === null) return { value: undefined, done: state.done = true };\n if (state.global) {\n if (String(match[0]) == '') R.lastIndex = advanceStringIndex(S, toLength(R.lastIndex), state.unicode);\n return { value: match, done: false };\n }\n state.done = true;\n return { value: match, done: false };\n});\n\nvar $matchAll = function (string) {\n var R = anObject(this);\n var S = String(string);\n var C, flagsValue, flags, matcher, global, fullUnicode;\n C = speciesConstructor(R, RegExp);\n flagsValue = R.flags;\n if (flagsValue === undefined && R instanceof RegExp && !('flags' in RegExpPrototype)) {\n flagsValue = getRegExpFlags.call(R);\n }\n flags = flagsValue === undefined ? '' : String(flagsValue);\n matcher = new C(C === RegExp ? R.source : R, flags);\n global = !!~flags.indexOf('g');\n fullUnicode = !!~flags.indexOf('u');\n matcher.lastIndex = toLength(R.lastIndex);\n return new $RegExpStringIterator(matcher, S, global, fullUnicode);\n};\n\n// `String.prototype.matchAll` method\n// https://github.com/tc39/proposal-string-matchall\n$({ target: 'String', proto: true, forced: WORKS_WITH_NON_GLOBAL_REGEX }, {\n matchAll: function matchAll(regexp) {\n var O = requireObjectCoercible(this);\n var flags, S, matcher, rx;\n if (regexp != null) {\n if (isRegExp(regexp)) {\n flags = String(requireObjectCoercible('flags' in RegExpPrototype\n ? regexp.flags\n : getRegExpFlags.call(regexp)\n ));\n if (!~flags.indexOf('g')) throw TypeError('`.matchAll` does not allow non-global regexes');\n }\n if (WORKS_WITH_NON_GLOBAL_REGEX) return nativeMatchAll.apply(O, arguments);\n matcher = regexp[MATCH_ALL];\n if (matcher === undefined && IS_PURE && classof(regexp) == 'RegExp') matcher = $matchAll;\n if (matcher != null) return aFunction(matcher).call(regexp, O);\n } else if (WORKS_WITH_NON_GLOBAL_REGEX) return nativeMatchAll.apply(O, arguments);\n S = String(O);\n rx = new RegExp(regexp, 'g');\n return IS_PURE ? $matchAll.call(rx, S) : rx[MATCH_ALL](S);\n }\n});\n\nIS_PURE || MATCH_ALL in RegExpPrototype || createNonEnumerableProperty(RegExpPrototype, MATCH_ALL, $matchAll);\n","'use strict';\nvar fixRegExpWellKnownSymbolLogic = require('../internals/fix-regexp-well-known-symbol-logic');\nvar anObject = require('../internals/an-object');\nvar toLength = require('../internals/to-length');\nvar requireObjectCoercible = require('../internals/require-object-coercible');\nvar advanceStringIndex = require('../internals/advance-string-index');\nvar regExpExec = require('../internals/regexp-exec-abstract');\n\n// @@match logic\nfixRegExpWellKnownSymbolLogic('match', 1, function (MATCH, nativeMatch, maybeCallNative) {\n return [\n // `String.prototype.match` method\n // https://tc39.github.io/ecma262/#sec-string.prototype.match\n function match(regexp) {\n var O = requireObjectCoercible(this);\n var matcher = regexp == undefined ? undefined : regexp[MATCH];\n return matcher !== undefined ? matcher.call(regexp, O) : new RegExp(regexp)[MATCH](String(O));\n },\n // `RegExp.prototype[@@match]` method\n // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@match\n function (regexp) {\n var res = maybeCallNative(nativeMatch, regexp, this);\n if (res.done) return res.value;\n\n var rx = anObject(regexp);\n var S = String(this);\n\n if (!rx.global) return regExpExec(rx, S);\n\n var fullUnicode = rx.unicode;\n rx.lastIndex = 0;\n var A = [];\n var n = 0;\n var result;\n while ((result = regExpExec(rx, S)) !== null) {\n var matchStr = String(result[0]);\n A[n] = matchStr;\n if (matchStr === '') rx.lastIndex = advanceStringIndex(S, toLength(rx.lastIndex), fullUnicode);\n n++;\n }\n return n === 0 ? null : A;\n }\n ];\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar $padEnd = require('../internals/string-pad').end;\nvar WEBKIT_BUG = require('../internals/string-pad-webkit-bug');\n\n// `String.prototype.padEnd` method\n// https://tc39.github.io/ecma262/#sec-string.prototype.padend\n$({ target: 'String', proto: true, forced: WEBKIT_BUG }, {\n padEnd: function padEnd(maxLength /* , fillString = ' ' */) {\n return $padEnd(this, maxLength, arguments.length > 1 ? arguments[1] : undefined);\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar $padStart = require('../internals/string-pad').start;\nvar WEBKIT_BUG = require('../internals/string-pad-webkit-bug');\n\n// `String.prototype.padStart` method\n// https://tc39.github.io/ecma262/#sec-string.prototype.padstart\n$({ target: 'String', proto: true, forced: WEBKIT_BUG }, {\n padStart: function padStart(maxLength /* , fillString = ' ' */) {\n return $padStart(this, maxLength, arguments.length > 1 ? arguments[1] : undefined);\n }\n});\n","var $ = require('../internals/export');\nvar toIndexedObject = require('../internals/to-indexed-object');\nvar toLength = require('../internals/to-length');\n\n// `String.raw` method\n// https://tc39.github.io/ecma262/#sec-string.raw\n$({ target: 'String', stat: true }, {\n raw: function raw(template) {\n var rawTemplate = toIndexedObject(template.raw);\n var literalSegments = toLength(rawTemplate.length);\n var argumentsLength = arguments.length;\n var elements = [];\n var i = 0;\n while (literalSegments > i) {\n elements.push(String(rawTemplate[i++]));\n if (i < argumentsLength) elements.push(String(arguments[i]));\n } return elements.join('');\n }\n});\n","var $ = require('../internals/export');\nvar repeat = require('../internals/string-repeat');\n\n// `String.prototype.repeat` method\n// https://tc39.github.io/ecma262/#sec-string.prototype.repeat\n$({ target: 'String', proto: true }, {\n repeat: repeat\n});\n","'use strict';\nvar fixRegExpWellKnownSymbolLogic = require('../internals/fix-regexp-well-known-symbol-logic');\nvar anObject = require('../internals/an-object');\nvar toObject = require('../internals/to-object');\nvar toLength = require('../internals/to-length');\nvar toInteger = require('../internals/to-integer');\nvar requireObjectCoercible = require('../internals/require-object-coercible');\nvar advanceStringIndex = require('../internals/advance-string-index');\nvar regExpExec = require('../internals/regexp-exec-abstract');\n\nvar max = Math.max;\nvar min = Math.min;\nvar floor = Math.floor;\nvar SUBSTITUTION_SYMBOLS = /\\$([$&'`]|\\d\\d?|<[^>]*>)/g;\nvar SUBSTITUTION_SYMBOLS_NO_NAMED = /\\$([$&'`]|\\d\\d?)/g;\n\nvar maybeToString = function (it) {\n return it === undefined ? it : String(it);\n};\n\n// @@replace logic\nfixRegExpWellKnownSymbolLogic('replace', 2, function (REPLACE, nativeReplace, maybeCallNative, reason) {\n var REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE = reason.REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE;\n var REPLACE_KEEPS_$0 = reason.REPLACE_KEEPS_$0;\n var UNSAFE_SUBSTITUTE = REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE ? '$' : '$0';\n\n return [\n // `String.prototype.replace` method\n // https://tc39.github.io/ecma262/#sec-string.prototype.replace\n function replace(searchValue, replaceValue) {\n var O = requireObjectCoercible(this);\n var replacer = searchValue == undefined ? undefined : searchValue[REPLACE];\n return replacer !== undefined\n ? replacer.call(searchValue, O, replaceValue)\n : nativeReplace.call(String(O), searchValue, replaceValue);\n },\n // `RegExp.prototype[@@replace]` method\n // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@replace\n function (regexp, replaceValue) {\n if (\n (!REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE && REPLACE_KEEPS_$0) ||\n (typeof replaceValue === 'string' && replaceValue.indexOf(UNSAFE_SUBSTITUTE) === -1)\n ) {\n var res = maybeCallNative(nativeReplace, regexp, this, replaceValue);\n if (res.done) return res.value;\n }\n\n var rx = anObject(regexp);\n var S = String(this);\n\n var functionalReplace = typeof replaceValue === 'function';\n if (!functionalReplace) replaceValue = String(replaceValue);\n\n var global = rx.global;\n if (global) {\n var fullUnicode = rx.unicode;\n rx.lastIndex = 0;\n }\n var results = [];\n while (true) {\n var result = regExpExec(rx, S);\n if (result === null) break;\n\n results.push(result);\n if (!global) break;\n\n var matchStr = String(result[0]);\n if (matchStr === '') rx.lastIndex = advanceStringIndex(S, toLength(rx.lastIndex), fullUnicode);\n }\n\n var accumulatedResult = '';\n var nextSourcePosition = 0;\n for (var i = 0; i < results.length; i++) {\n result = results[i];\n\n var matched = String(result[0]);\n var position = max(min(toInteger(result.index), S.length), 0);\n var captures = [];\n // NOTE: This is equivalent to\n // captures = result.slice(1).map(maybeToString)\n // but for some reason `nativeSlice.call(result, 1, result.length)` (called in\n // the slice polyfill when slicing native arrays) \"doesn't work\" in safari 9 and\n // causes a crash (https://pastebin.com/N21QzeQA) when trying to debug it.\n for (var j = 1; j < result.length; j++) captures.push(maybeToString(result[j]));\n var namedCaptures = result.groups;\n if (functionalReplace) {\n var replacerArgs = [matched].concat(captures, position, S);\n if (namedCaptures !== undefined) replacerArgs.push(namedCaptures);\n var replacement = String(replaceValue.apply(undefined, replacerArgs));\n } else {\n replacement = getSubstitution(matched, S, position, captures, namedCaptures, replaceValue);\n }\n if (position >= nextSourcePosition) {\n accumulatedResult += S.slice(nextSourcePosition, position) + replacement;\n nextSourcePosition = position + matched.length;\n }\n }\n return accumulatedResult + S.slice(nextSourcePosition);\n }\n ];\n\n // https://tc39.github.io/ecma262/#sec-getsubstitution\n function getSubstitution(matched, str, position, captures, namedCaptures, replacement) {\n var tailPos = position + matched.length;\n var m = captures.length;\n var symbols = SUBSTITUTION_SYMBOLS_NO_NAMED;\n if (namedCaptures !== undefined) {\n namedCaptures = toObject(namedCaptures);\n symbols = SUBSTITUTION_SYMBOLS;\n }\n return nativeReplace.call(replacement, symbols, function (match, ch) {\n var capture;\n switch (ch.charAt(0)) {\n case '$': return '$';\n case '&': return matched;\n case '`': return str.slice(0, position);\n case \"'\": return str.slice(tailPos);\n case '<':\n capture = namedCaptures[ch.slice(1, -1)];\n break;\n default: // \\d\\d?\n var n = +ch;\n if (n === 0) return match;\n if (n > m) {\n var f = floor(n / 10);\n if (f === 0) return match;\n if (f <= m) return captures[f - 1] === undefined ? ch.charAt(1) : captures[f - 1] + ch.charAt(1);\n return match;\n }\n capture = captures[n - 1];\n }\n return capture === undefined ? '' : capture;\n });\n }\n});\n","'use strict';\nvar fixRegExpWellKnownSymbolLogic = require('../internals/fix-regexp-well-known-symbol-logic');\nvar anObject = require('../internals/an-object');\nvar requireObjectCoercible = require('../internals/require-object-coercible');\nvar sameValue = require('../internals/same-value');\nvar regExpExec = require('../internals/regexp-exec-abstract');\n\n// @@search logic\nfixRegExpWellKnownSymbolLogic('search', 1, function (SEARCH, nativeSearch, maybeCallNative) {\n return [\n // `String.prototype.search` method\n // https://tc39.github.io/ecma262/#sec-string.prototype.search\n function search(regexp) {\n var O = requireObjectCoercible(this);\n var searcher = regexp == undefined ? undefined : regexp[SEARCH];\n return searcher !== undefined ? searcher.call(regexp, O) : new RegExp(regexp)[SEARCH](String(O));\n },\n // `RegExp.prototype[@@search]` method\n // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@search\n function (regexp) {\n var res = maybeCallNative(nativeSearch, regexp, this);\n if (res.done) return res.value;\n\n var rx = anObject(regexp);\n var S = String(this);\n\n var previousLastIndex = rx.lastIndex;\n if (!sameValue(previousLastIndex, 0)) rx.lastIndex = 0;\n var result = regExpExec(rx, S);\n if (!sameValue(rx.lastIndex, previousLastIndex)) rx.lastIndex = previousLastIndex;\n return result === null ? -1 : result.index;\n }\n ];\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar createHTML = require('../internals/create-html');\nvar forcedStringHTMLMethod = require('../internals/string-html-forced');\n\n// `String.prototype.small` method\n// https://tc39.github.io/ecma262/#sec-string.prototype.small\n$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('small') }, {\n small: function small() {\n return createHTML(this, 'small', '', '');\n }\n});\n","'use strict';\nvar fixRegExpWellKnownSymbolLogic = require('../internals/fix-regexp-well-known-symbol-logic');\nvar isRegExp = require('../internals/is-regexp');\nvar anObject = require('../internals/an-object');\nvar requireObjectCoercible = require('../internals/require-object-coercible');\nvar speciesConstructor = require('../internals/species-constructor');\nvar advanceStringIndex = require('../internals/advance-string-index');\nvar toLength = require('../internals/to-length');\nvar callRegExpExec = require('../internals/regexp-exec-abstract');\nvar regexpExec = require('../internals/regexp-exec');\nvar fails = require('../internals/fails');\n\nvar arrayPush = [].push;\nvar min = Math.min;\nvar MAX_UINT32 = 0xFFFFFFFF;\n\n// babel-minify transpiles RegExp('x', 'y') -> /x/y and it causes SyntaxError\nvar SUPPORTS_Y = !fails(function () { return !RegExp(MAX_UINT32, 'y'); });\n\n// @@split logic\nfixRegExpWellKnownSymbolLogic('split', 2, function (SPLIT, nativeSplit, maybeCallNative) {\n var internalSplit;\n if (\n 'abbc'.split(/(b)*/)[1] == 'c' ||\n 'test'.split(/(?:)/, -1).length != 4 ||\n 'ab'.split(/(?:ab)*/).length != 2 ||\n '.'.split(/(.?)(.?)/).length != 4 ||\n '.'.split(/()()/).length > 1 ||\n ''.split(/.?/).length\n ) {\n // based on es5-shim implementation, need to rework it\n internalSplit = function (separator, limit) {\n var string = String(requireObjectCoercible(this));\n var lim = limit === undefined ? MAX_UINT32 : limit >>> 0;\n if (lim === 0) return [];\n if (separator === undefined) return [string];\n // If `separator` is not a regex, use native split\n if (!isRegExp(separator)) {\n return nativeSplit.call(string, separator, lim);\n }\n var output = [];\n var flags = (separator.ignoreCase ? 'i' : '') +\n (separator.multiline ? 'm' : '') +\n (separator.unicode ? 'u' : '') +\n (separator.sticky ? 'y' : '');\n var lastLastIndex = 0;\n // Make `global` and avoid `lastIndex` issues by working with a copy\n var separatorCopy = new RegExp(separator.source, flags + 'g');\n var match, lastIndex, lastLength;\n while (match = regexpExec.call(separatorCopy, string)) {\n lastIndex = separatorCopy.lastIndex;\n if (lastIndex > lastLastIndex) {\n output.push(string.slice(lastLastIndex, match.index));\n if (match.length > 1 && match.index < string.length) arrayPush.apply(output, match.slice(1));\n lastLength = match[0].length;\n lastLastIndex = lastIndex;\n if (output.length >= lim) break;\n }\n if (separatorCopy.lastIndex === match.index) separatorCopy.lastIndex++; // Avoid an infinite loop\n }\n if (lastLastIndex === string.length) {\n if (lastLength || !separatorCopy.test('')) output.push('');\n } else output.push(string.slice(lastLastIndex));\n return output.length > lim ? output.slice(0, lim) : output;\n };\n // Chakra, V8\n } else if ('0'.split(undefined, 0).length) {\n internalSplit = function (separator, limit) {\n return separator === undefined && limit === 0 ? [] : nativeSplit.call(this, separator, limit);\n };\n } else internalSplit = nativeSplit;\n\n return [\n // `String.prototype.split` method\n // https://tc39.github.io/ecma262/#sec-string.prototype.split\n function split(separator, limit) {\n var O = requireObjectCoercible(this);\n var splitter = separator == undefined ? undefined : separator[SPLIT];\n return splitter !== undefined\n ? splitter.call(separator, O, limit)\n : internalSplit.call(String(O), separator, limit);\n },\n // `RegExp.prototype[@@split]` method\n // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@split\n //\n // NOTE: This cannot be properly polyfilled in engines that don't support\n // the 'y' flag.\n function (regexp, limit) {\n var res = maybeCallNative(internalSplit, regexp, this, limit, internalSplit !== nativeSplit);\n if (res.done) return res.value;\n\n var rx = anObject(regexp);\n var S = String(this);\n var C = speciesConstructor(rx, RegExp);\n\n var unicodeMatching = rx.unicode;\n var flags = (rx.ignoreCase ? 'i' : '') +\n (rx.multiline ? 'm' : '') +\n (rx.unicode ? 'u' : '') +\n (SUPPORTS_Y ? 'y' : 'g');\n\n // ^(? + rx + ) is needed, in combination with some S slicing, to\n // simulate the 'y' flag.\n var splitter = new C(SUPPORTS_Y ? rx : '^(?:' + rx.source + ')', flags);\n var lim = limit === undefined ? MAX_UINT32 : limit >>> 0;\n if (lim === 0) return [];\n if (S.length === 0) return callRegExpExec(splitter, S) === null ? [S] : [];\n var p = 0;\n var q = 0;\n var A = [];\n while (q < S.length) {\n splitter.lastIndex = SUPPORTS_Y ? q : 0;\n var z = callRegExpExec(splitter, SUPPORTS_Y ? S : S.slice(q));\n var e;\n if (\n z === null ||\n (e = min(toLength(splitter.lastIndex + (SUPPORTS_Y ? 0 : q)), S.length)) === p\n ) {\n q = advanceStringIndex(S, q, unicodeMatching);\n } else {\n A.push(S.slice(p, q));\n if (A.length === lim) return A;\n for (var i = 1; i <= z.length - 1; i++) {\n A.push(z[i]);\n if (A.length === lim) return A;\n }\n q = p = e;\n }\n }\n A.push(S.slice(p));\n return A;\n }\n ];\n}, !SUPPORTS_Y);\n","'use strict';\nvar $ = require('../internals/export');\nvar getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;\nvar toLength = require('../internals/to-length');\nvar notARegExp = require('../internals/not-a-regexp');\nvar requireObjectCoercible = require('../internals/require-object-coercible');\nvar correctIsRegExpLogic = require('../internals/correct-is-regexp-logic');\nvar IS_PURE = require('../internals/is-pure');\n\nvar nativeStartsWith = ''.startsWith;\nvar min = Math.min;\n\nvar CORRECT_IS_REGEXP_LOGIC = correctIsRegExpLogic('startsWith');\n// https://github.com/zloirock/core-js/pull/702\nvar MDN_POLYFILL_BUG = !IS_PURE && !CORRECT_IS_REGEXP_LOGIC && !!function () {\n var descriptor = getOwnPropertyDescriptor(String.prototype, 'startsWith');\n return descriptor && !descriptor.writable;\n}();\n\n// `String.prototype.startsWith` method\n// https://tc39.github.io/ecma262/#sec-string.prototype.startswith\n$({ target: 'String', proto: true, forced: !MDN_POLYFILL_BUG && !CORRECT_IS_REGEXP_LOGIC }, {\n startsWith: function startsWith(searchString /* , position = 0 */) {\n var that = String(requireObjectCoercible(this));\n notARegExp(searchString);\n var index = toLength(min(arguments.length > 1 ? arguments[1] : undefined, that.length));\n var search = String(searchString);\n return nativeStartsWith\n ? nativeStartsWith.call(that, search, index)\n : that.slice(index, index + search.length) === search;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar createHTML = require('../internals/create-html');\nvar forcedStringHTMLMethod = require('../internals/string-html-forced');\n\n// `String.prototype.strike` method\n// https://tc39.github.io/ecma262/#sec-string.prototype.strike\n$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('strike') }, {\n strike: function strike() {\n return createHTML(this, 'strike', '', '');\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar createHTML = require('../internals/create-html');\nvar forcedStringHTMLMethod = require('../internals/string-html-forced');\n\n// `String.prototype.sub` method\n// https://tc39.github.io/ecma262/#sec-string.prototype.sub\n$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('sub') }, {\n sub: function sub() {\n return createHTML(this, 'sub', '', '');\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar createHTML = require('../internals/create-html');\nvar forcedStringHTMLMethod = require('../internals/string-html-forced');\n\n// `String.prototype.sup` method\n// https://tc39.github.io/ecma262/#sec-string.prototype.sup\n$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('sup') }, {\n sup: function sup() {\n return createHTML(this, 'sup', '', '');\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar $trimEnd = require('../internals/string-trim').end;\nvar forcedStringTrimMethod = require('../internals/string-trim-forced');\n\nvar FORCED = forcedStringTrimMethod('trimEnd');\n\nvar trimEnd = FORCED ? function trimEnd() {\n return $trimEnd(this);\n} : ''.trimEnd;\n\n// `String.prototype.{ trimEnd, trimRight }` methods\n// https://github.com/tc39/ecmascript-string-left-right-trim\n$({ target: 'String', proto: true, forced: FORCED }, {\n trimEnd: trimEnd,\n trimRight: trimEnd\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar $trimStart = require('../internals/string-trim').start;\nvar forcedStringTrimMethod = require('../internals/string-trim-forced');\n\nvar FORCED = forcedStringTrimMethod('trimStart');\n\nvar trimStart = FORCED ? function trimStart() {\n return $trimStart(this);\n} : ''.trimStart;\n\n// `String.prototype.{ trimStart, trimLeft }` methods\n// https://github.com/tc39/ecmascript-string-left-right-trim\n$({ target: 'String', proto: true, forced: FORCED }, {\n trimStart: trimStart,\n trimLeft: trimStart\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar $trim = require('../internals/string-trim').trim;\nvar forcedStringTrimMethod = require('../internals/string-trim-forced');\n\n// `String.prototype.trim` method\n// https://tc39.github.io/ecma262/#sec-string.prototype.trim\n$({ target: 'String', proto: true, forced: forcedStringTrimMethod('trim') }, {\n trim: function trim() {\n return $trim(this);\n }\n});\n","var defineWellKnownSymbol = require('../internals/define-well-known-symbol');\n\n// `Symbol.asyncIterator` well-known symbol\n// https://tc39.github.io/ecma262/#sec-symbol.asynciterator\ndefineWellKnownSymbol('asyncIterator');\n","// `Symbol.prototype.description` getter\n// https://tc39.github.io/ecma262/#sec-symbol.prototype.description\n'use strict';\nvar $ = require('../internals/export');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar global = require('../internals/global');\nvar has = require('../internals/has');\nvar isObject = require('../internals/is-object');\nvar defineProperty = require('../internals/object-define-property').f;\nvar copyConstructorProperties = require('../internals/copy-constructor-properties');\n\nvar NativeSymbol = global.Symbol;\n\nif (DESCRIPTORS && typeof NativeSymbol == 'function' && (!('description' in NativeSymbol.prototype) ||\n // Safari 12 bug\n NativeSymbol().description !== undefined\n)) {\n var EmptyStringDescriptionStore = {};\n // wrap Symbol constructor for correct work with undefined description\n var SymbolWrapper = function Symbol() {\n var description = arguments.length < 1 || arguments[0] === undefined ? undefined : String(arguments[0]);\n var result = this instanceof SymbolWrapper\n ? new NativeSymbol(description)\n // in Edge 13, String(Symbol(undefined)) === 'Symbol(undefined)'\n : description === undefined ? NativeSymbol() : NativeSymbol(description);\n if (description === '') EmptyStringDescriptionStore[result] = true;\n return result;\n };\n copyConstructorProperties(SymbolWrapper, NativeSymbol);\n var symbolPrototype = SymbolWrapper.prototype = NativeSymbol.prototype;\n symbolPrototype.constructor = SymbolWrapper;\n\n var symbolToString = symbolPrototype.toString;\n var native = String(NativeSymbol('test')) == 'Symbol(test)';\n var regexp = /^Symbol\\((.*)\\)[^)]+$/;\n defineProperty(symbolPrototype, 'description', {\n configurable: true,\n get: function description() {\n var symbol = isObject(this) ? this.valueOf() : this;\n var string = symbolToString.call(symbol);\n if (has(EmptyStringDescriptionStore, symbol)) return '';\n var desc = native ? string.slice(7, -1) : string.replace(regexp, '$1');\n return desc === '' ? undefined : desc;\n }\n });\n\n $({ global: true, forced: true }, {\n Symbol: SymbolWrapper\n });\n}\n","var defineWellKnownSymbol = require('../internals/define-well-known-symbol');\n\n// `Symbol.hasInstance` well-known symbol\n// https://tc39.github.io/ecma262/#sec-symbol.hasinstance\ndefineWellKnownSymbol('hasInstance');\n","var defineWellKnownSymbol = require('../internals/define-well-known-symbol');\n\n// `Symbol.isConcatSpreadable` well-known symbol\n// https://tc39.github.io/ecma262/#sec-symbol.isconcatspreadable\ndefineWellKnownSymbol('isConcatSpreadable');\n","var defineWellKnownSymbol = require('../internals/define-well-known-symbol');\n\n// `Symbol.iterator` well-known symbol\n// https://tc39.github.io/ecma262/#sec-symbol.iterator\ndefineWellKnownSymbol('iterator');\n","'use strict';\nvar $ = require('../internals/export');\nvar global = require('../internals/global');\nvar getBuiltIn = require('../internals/get-built-in');\nvar IS_PURE = require('../internals/is-pure');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar NATIVE_SYMBOL = require('../internals/native-symbol');\nvar USE_SYMBOL_AS_UID = require('../internals/use-symbol-as-uid');\nvar fails = require('../internals/fails');\nvar has = require('../internals/has');\nvar isArray = require('../internals/is-array');\nvar isObject = require('../internals/is-object');\nvar anObject = require('../internals/an-object');\nvar toObject = require('../internals/to-object');\nvar toIndexedObject = require('../internals/to-indexed-object');\nvar toPrimitive = require('../internals/to-primitive');\nvar createPropertyDescriptor = require('../internals/create-property-descriptor');\nvar nativeObjectCreate = require('../internals/object-create');\nvar objectKeys = require('../internals/object-keys');\nvar getOwnPropertyNamesModule = require('../internals/object-get-own-property-names');\nvar getOwnPropertyNamesExternal = require('../internals/object-get-own-property-names-external');\nvar getOwnPropertySymbolsModule = require('../internals/object-get-own-property-symbols');\nvar getOwnPropertyDescriptorModule = require('../internals/object-get-own-property-descriptor');\nvar definePropertyModule = require('../internals/object-define-property');\nvar propertyIsEnumerableModule = require('../internals/object-property-is-enumerable');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar redefine = require('../internals/redefine');\nvar shared = require('../internals/shared');\nvar sharedKey = require('../internals/shared-key');\nvar hiddenKeys = require('../internals/hidden-keys');\nvar uid = require('../internals/uid');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar wrappedWellKnownSymbolModule = require('../internals/well-known-symbol-wrapped');\nvar defineWellKnownSymbol = require('../internals/define-well-known-symbol');\nvar setToStringTag = require('../internals/set-to-string-tag');\nvar InternalStateModule = require('../internals/internal-state');\nvar $forEach = require('../internals/array-iteration').forEach;\n\nvar HIDDEN = sharedKey('hidden');\nvar SYMBOL = 'Symbol';\nvar PROTOTYPE = 'prototype';\nvar TO_PRIMITIVE = wellKnownSymbol('toPrimitive');\nvar setInternalState = InternalStateModule.set;\nvar getInternalState = InternalStateModule.getterFor(SYMBOL);\nvar ObjectPrototype = Object[PROTOTYPE];\nvar $Symbol = global.Symbol;\nvar $stringify = getBuiltIn('JSON', 'stringify');\nvar nativeGetOwnPropertyDescriptor = getOwnPropertyDescriptorModule.f;\nvar nativeDefineProperty = definePropertyModule.f;\nvar nativeGetOwnPropertyNames = getOwnPropertyNamesExternal.f;\nvar nativePropertyIsEnumerable = propertyIsEnumerableModule.f;\nvar AllSymbols = shared('symbols');\nvar ObjectPrototypeSymbols = shared('op-symbols');\nvar StringToSymbolRegistry = shared('string-to-symbol-registry');\nvar SymbolToStringRegistry = shared('symbol-to-string-registry');\nvar WellKnownSymbolsStore = shared('wks');\nvar QObject = global.QObject;\n// Don't use setters in Qt Script, https://github.com/zloirock/core-js/issues/173\nvar USE_SETTER = !QObject || !QObject[PROTOTYPE] || !QObject[PROTOTYPE].findChild;\n\n// fallback for old Android, https://code.google.com/p/v8/issues/detail?id=687\nvar setSymbolDescriptor = DESCRIPTORS && fails(function () {\n return nativeObjectCreate(nativeDefineProperty({}, 'a', {\n get: function () { return nativeDefineProperty(this, 'a', { value: 7 }).a; }\n })).a != 7;\n}) ? function (O, P, Attributes) {\n var ObjectPrototypeDescriptor = nativeGetOwnPropertyDescriptor(ObjectPrototype, P);\n if (ObjectPrototypeDescriptor) delete ObjectPrototype[P];\n nativeDefineProperty(O, P, Attributes);\n if (ObjectPrototypeDescriptor && O !== ObjectPrototype) {\n nativeDefineProperty(ObjectPrototype, P, ObjectPrototypeDescriptor);\n }\n} : nativeDefineProperty;\n\nvar wrap = function (tag, description) {\n var symbol = AllSymbols[tag] = nativeObjectCreate($Symbol[PROTOTYPE]);\n setInternalState(symbol, {\n type: SYMBOL,\n tag: tag,\n description: description\n });\n if (!DESCRIPTORS) symbol.description = description;\n return symbol;\n};\n\nvar isSymbol = USE_SYMBOL_AS_UID ? function (it) {\n return typeof it == 'symbol';\n} : function (it) {\n return Object(it) instanceof $Symbol;\n};\n\nvar $defineProperty = function defineProperty(O, P, Attributes) {\n if (O === ObjectPrototype) $defineProperty(ObjectPrototypeSymbols, P, Attributes);\n anObject(O);\n var key = toPrimitive(P, true);\n anObject(Attributes);\n if (has(AllSymbols, key)) {\n if (!Attributes.enumerable) {\n if (!has(O, HIDDEN)) nativeDefineProperty(O, HIDDEN, createPropertyDescriptor(1, {}));\n O[HIDDEN][key] = true;\n } else {\n if (has(O, HIDDEN) && O[HIDDEN][key]) O[HIDDEN][key] = false;\n Attributes = nativeObjectCreate(Attributes, { enumerable: createPropertyDescriptor(0, false) });\n } return setSymbolDescriptor(O, key, Attributes);\n } return nativeDefineProperty(O, key, Attributes);\n};\n\nvar $defineProperties = function defineProperties(O, Properties) {\n anObject(O);\n var properties = toIndexedObject(Properties);\n var keys = objectKeys(properties).concat($getOwnPropertySymbols(properties));\n $forEach(keys, function (key) {\n if (!DESCRIPTORS || $propertyIsEnumerable.call(properties, key)) $defineProperty(O, key, properties[key]);\n });\n return O;\n};\n\nvar $create = function create(O, Properties) {\n return Properties === undefined ? nativeObjectCreate(O) : $defineProperties(nativeObjectCreate(O), Properties);\n};\n\nvar $propertyIsEnumerable = function propertyIsEnumerable(V) {\n var P = toPrimitive(V, true);\n var enumerable = nativePropertyIsEnumerable.call(this, P);\n if (this === ObjectPrototype && has(AllSymbols, P) && !has(ObjectPrototypeSymbols, P)) return false;\n return enumerable || !has(this, P) || !has(AllSymbols, P) || has(this, HIDDEN) && this[HIDDEN][P] ? enumerable : true;\n};\n\nvar $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(O, P) {\n var it = toIndexedObject(O);\n var key = toPrimitive(P, true);\n if (it === ObjectPrototype && has(AllSymbols, key) && !has(ObjectPrototypeSymbols, key)) return;\n var descriptor = nativeGetOwnPropertyDescriptor(it, key);\n if (descriptor && has(AllSymbols, key) && !(has(it, HIDDEN) && it[HIDDEN][key])) {\n descriptor.enumerable = true;\n }\n return descriptor;\n};\n\nvar $getOwnPropertyNames = function getOwnPropertyNames(O) {\n var names = nativeGetOwnPropertyNames(toIndexedObject(O));\n var result = [];\n $forEach(names, function (key) {\n if (!has(AllSymbols, key) && !has(hiddenKeys, key)) result.push(key);\n });\n return result;\n};\n\nvar $getOwnPropertySymbols = function getOwnPropertySymbols(O) {\n var IS_OBJECT_PROTOTYPE = O === ObjectPrototype;\n var names = nativeGetOwnPropertyNames(IS_OBJECT_PROTOTYPE ? ObjectPrototypeSymbols : toIndexedObject(O));\n var result = [];\n $forEach(names, function (key) {\n if (has(AllSymbols, key) && (!IS_OBJECT_PROTOTYPE || has(ObjectPrototype, key))) {\n result.push(AllSymbols[key]);\n }\n });\n return result;\n};\n\n// `Symbol` constructor\n// https://tc39.github.io/ecma262/#sec-symbol-constructor\nif (!NATIVE_SYMBOL) {\n $Symbol = function Symbol() {\n if (this instanceof $Symbol) throw TypeError('Symbol is not a constructor');\n var description = !arguments.length || arguments[0] === undefined ? undefined : String(arguments[0]);\n var tag = uid(description);\n var setter = function (value) {\n if (this === ObjectPrototype) setter.call(ObjectPrototypeSymbols, value);\n if (has(this, HIDDEN) && has(this[HIDDEN], tag)) this[HIDDEN][tag] = false;\n setSymbolDescriptor(this, tag, createPropertyDescriptor(1, value));\n };\n if (DESCRIPTORS && USE_SETTER) setSymbolDescriptor(ObjectPrototype, tag, { configurable: true, set: setter });\n return wrap(tag, description);\n };\n\n redefine($Symbol[PROTOTYPE], 'toString', function toString() {\n return getInternalState(this).tag;\n });\n\n redefine($Symbol, 'withoutSetter', function (description) {\n return wrap(uid(description), description);\n });\n\n propertyIsEnumerableModule.f = $propertyIsEnumerable;\n definePropertyModule.f = $defineProperty;\n getOwnPropertyDescriptorModule.f = $getOwnPropertyDescriptor;\n getOwnPropertyNamesModule.f = getOwnPropertyNamesExternal.f = $getOwnPropertyNames;\n getOwnPropertySymbolsModule.f = $getOwnPropertySymbols;\n\n wrappedWellKnownSymbolModule.f = function (name) {\n return wrap(wellKnownSymbol(name), name);\n };\n\n if (DESCRIPTORS) {\n // https://github.com/tc39/proposal-Symbol-description\n nativeDefineProperty($Symbol[PROTOTYPE], 'description', {\n configurable: true,\n get: function description() {\n return getInternalState(this).description;\n }\n });\n if (!IS_PURE) {\n redefine(ObjectPrototype, 'propertyIsEnumerable', $propertyIsEnumerable, { unsafe: true });\n }\n }\n}\n\n$({ global: true, wrap: true, forced: !NATIVE_SYMBOL, sham: !NATIVE_SYMBOL }, {\n Symbol: $Symbol\n});\n\n$forEach(objectKeys(WellKnownSymbolsStore), function (name) {\n defineWellKnownSymbol(name);\n});\n\n$({ target: SYMBOL, stat: true, forced: !NATIVE_SYMBOL }, {\n // `Symbol.for` method\n // https://tc39.github.io/ecma262/#sec-symbol.for\n 'for': function (key) {\n var string = String(key);\n if (has(StringToSymbolRegistry, string)) return StringToSymbolRegistry[string];\n var symbol = $Symbol(string);\n StringToSymbolRegistry[string] = symbol;\n SymbolToStringRegistry[symbol] = string;\n return symbol;\n },\n // `Symbol.keyFor` method\n // https://tc39.github.io/ecma262/#sec-symbol.keyfor\n keyFor: function keyFor(sym) {\n if (!isSymbol(sym)) throw TypeError(sym + ' is not a symbol');\n if (has(SymbolToStringRegistry, sym)) return SymbolToStringRegistry[sym];\n },\n useSetter: function () { USE_SETTER = true; },\n useSimple: function () { USE_SETTER = false; }\n});\n\n$({ target: 'Object', stat: true, forced: !NATIVE_SYMBOL, sham: !DESCRIPTORS }, {\n // `Object.create` method\n // https://tc39.github.io/ecma262/#sec-object.create\n create: $create,\n // `Object.defineProperty` method\n // https://tc39.github.io/ecma262/#sec-object.defineproperty\n defineProperty: $defineProperty,\n // `Object.defineProperties` method\n // https://tc39.github.io/ecma262/#sec-object.defineproperties\n defineProperties: $defineProperties,\n // `Object.getOwnPropertyDescriptor` method\n // https://tc39.github.io/ecma262/#sec-object.getownpropertydescriptors\n getOwnPropertyDescriptor: $getOwnPropertyDescriptor\n});\n\n$({ target: 'Object', stat: true, forced: !NATIVE_SYMBOL }, {\n // `Object.getOwnPropertyNames` method\n // https://tc39.github.io/ecma262/#sec-object.getownpropertynames\n getOwnPropertyNames: $getOwnPropertyNames,\n // `Object.getOwnPropertySymbols` method\n // https://tc39.github.io/ecma262/#sec-object.getownpropertysymbols\n getOwnPropertySymbols: $getOwnPropertySymbols\n});\n\n// Chrome 38 and 39 `Object.getOwnPropertySymbols` fails on primitives\n// https://bugs.chromium.org/p/v8/issues/detail?id=3443\n$({ target: 'Object', stat: true, forced: fails(function () { getOwnPropertySymbolsModule.f(1); }) }, {\n getOwnPropertySymbols: function getOwnPropertySymbols(it) {\n return getOwnPropertySymbolsModule.f(toObject(it));\n }\n});\n\n// `JSON.stringify` method behavior with symbols\n// https://tc39.github.io/ecma262/#sec-json.stringify\nif ($stringify) {\n var FORCED_JSON_STRINGIFY = !NATIVE_SYMBOL || fails(function () {\n var symbol = $Symbol();\n // MS Edge converts symbol values to JSON as {}\n return $stringify([symbol]) != '[null]'\n // WebKit converts symbol values to JSON as null\n || $stringify({ a: symbol }) != '{}'\n // V8 throws on boxed symbols\n || $stringify(Object(symbol)) != '{}';\n });\n\n $({ target: 'JSON', stat: true, forced: FORCED_JSON_STRINGIFY }, {\n // eslint-disable-next-line no-unused-vars\n stringify: function stringify(it, replacer, space) {\n var args = [it];\n var index = 1;\n var $replacer;\n while (arguments.length > index) args.push(arguments[index++]);\n $replacer = replacer;\n if (!isObject(replacer) && it === undefined || isSymbol(it)) return; // IE8 returns string on undefined\n if (!isArray(replacer)) replacer = function (key, value) {\n if (typeof $replacer == 'function') value = $replacer.call(this, key, value);\n if (!isSymbol(value)) return value;\n };\n args[1] = replacer;\n return $stringify.apply(null, args);\n }\n });\n}\n\n// `Symbol.prototype[@@toPrimitive]` method\n// https://tc39.github.io/ecma262/#sec-symbol.prototype-@@toprimitive\nif (!$Symbol[PROTOTYPE][TO_PRIMITIVE]) {\n createNonEnumerableProperty($Symbol[PROTOTYPE], TO_PRIMITIVE, $Symbol[PROTOTYPE].valueOf);\n}\n// `Symbol.prototype[@@toStringTag]` property\n// https://tc39.github.io/ecma262/#sec-symbol.prototype-@@tostringtag\nsetToStringTag($Symbol, SYMBOL);\n\nhiddenKeys[HIDDEN] = true;\n","var defineWellKnownSymbol = require('../internals/define-well-known-symbol');\n\n// `Symbol.matchAll` well-known symbol\ndefineWellKnownSymbol('matchAll');\n","var defineWellKnownSymbol = require('../internals/define-well-known-symbol');\n\n// `Symbol.match` well-known symbol\n// https://tc39.github.io/ecma262/#sec-symbol.match\ndefineWellKnownSymbol('match');\n","var defineWellKnownSymbol = require('../internals/define-well-known-symbol');\n\n// `Symbol.replace` well-known symbol\n// https://tc39.github.io/ecma262/#sec-symbol.replace\ndefineWellKnownSymbol('replace');\n","var defineWellKnownSymbol = require('../internals/define-well-known-symbol');\n\n// `Symbol.search` well-known symbol\n// https://tc39.github.io/ecma262/#sec-symbol.search\ndefineWellKnownSymbol('search');\n","var defineWellKnownSymbol = require('../internals/define-well-known-symbol');\n\n// `Symbol.species` well-known symbol\n// https://tc39.github.io/ecma262/#sec-symbol.species\ndefineWellKnownSymbol('species');\n","var defineWellKnownSymbol = require('../internals/define-well-known-symbol');\n\n// `Symbol.split` well-known symbol\n// https://tc39.github.io/ecma262/#sec-symbol.split\ndefineWellKnownSymbol('split');\n","var defineWellKnownSymbol = require('../internals/define-well-known-symbol');\n\n// `Symbol.toPrimitive` well-known symbol\n// https://tc39.github.io/ecma262/#sec-symbol.toprimitive\ndefineWellKnownSymbol('toPrimitive');\n","var defineWellKnownSymbol = require('../internals/define-well-known-symbol');\n\n// `Symbol.toStringTag` well-known symbol\n// https://tc39.github.io/ecma262/#sec-symbol.tostringtag\ndefineWellKnownSymbol('toStringTag');\n","var defineWellKnownSymbol = require('../internals/define-well-known-symbol');\n\n// `Symbol.unscopables` well-known symbol\n// https://tc39.github.io/ecma262/#sec-symbol.unscopables\ndefineWellKnownSymbol('unscopables');\n","'use strict';\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\nvar $copyWithin = require('../internals/array-copy-within');\n\nvar aTypedArray = ArrayBufferViewCore.aTypedArray;\nvar exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;\n\n// `%TypedArray%.prototype.copyWithin` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.copywithin\nexportTypedArrayMethod('copyWithin', function copyWithin(target, start /* , end */) {\n return $copyWithin.call(aTypedArray(this), target, start, arguments.length > 2 ? arguments[2] : undefined);\n});\n","'use strict';\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\nvar $every = require('../internals/array-iteration').every;\n\nvar aTypedArray = ArrayBufferViewCore.aTypedArray;\nvar exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;\n\n// `%TypedArray%.prototype.every` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.every\nexportTypedArrayMethod('every', function every(callbackfn /* , thisArg */) {\n return $every(aTypedArray(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);\n});\n","'use strict';\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\nvar $fill = require('../internals/array-fill');\n\nvar aTypedArray = ArrayBufferViewCore.aTypedArray;\nvar exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;\n\n// `%TypedArray%.prototype.fill` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.fill\n// eslint-disable-next-line no-unused-vars\nexportTypedArrayMethod('fill', function fill(value /* , start, end */) {\n return $fill.apply(aTypedArray(this), arguments);\n});\n","'use strict';\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\nvar $filter = require('../internals/array-iteration').filter;\nvar speciesConstructor = require('../internals/species-constructor');\n\nvar aTypedArray = ArrayBufferViewCore.aTypedArray;\nvar aTypedArrayConstructor = ArrayBufferViewCore.aTypedArrayConstructor;\nvar exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;\n\n// `%TypedArray%.prototype.filter` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.filter\nexportTypedArrayMethod('filter', function filter(callbackfn /* , thisArg */) {\n var list = $filter(aTypedArray(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);\n var C = speciesConstructor(this, this.constructor);\n var index = 0;\n var length = list.length;\n var result = new (aTypedArrayConstructor(C))(length);\n while (length > index) result[index] = list[index++];\n return result;\n});\n","'use strict';\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\nvar $findIndex = require('../internals/array-iteration').findIndex;\n\nvar aTypedArray = ArrayBufferViewCore.aTypedArray;\nvar exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;\n\n// `%TypedArray%.prototype.findIndex` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.findindex\nexportTypedArrayMethod('findIndex', function findIndex(predicate /* , thisArg */) {\n return $findIndex(aTypedArray(this), predicate, arguments.length > 1 ? arguments[1] : undefined);\n});\n","'use strict';\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\nvar $find = require('../internals/array-iteration').find;\n\nvar aTypedArray = ArrayBufferViewCore.aTypedArray;\nvar exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;\n\n// `%TypedArray%.prototype.find` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.find\nexportTypedArrayMethod('find', function find(predicate /* , thisArg */) {\n return $find(aTypedArray(this), predicate, arguments.length > 1 ? arguments[1] : undefined);\n});\n","var createTypedArrayConstructor = require('../internals/typed-array-constructor');\n\n// `Float32Array` constructor\n// https://tc39.github.io/ecma262/#sec-typedarray-objects\ncreateTypedArrayConstructor('Float32', function (init) {\n return function Float32Array(data, byteOffset, length) {\n return init(this, data, byteOffset, length);\n };\n});\n","var createTypedArrayConstructor = require('../internals/typed-array-constructor');\n\n// `Float64Array` constructor\n// https://tc39.github.io/ecma262/#sec-typedarray-objects\ncreateTypedArrayConstructor('Float64', function (init) {\n return function Float64Array(data, byteOffset, length) {\n return init(this, data, byteOffset, length);\n };\n});\n","'use strict';\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\nvar $forEach = require('../internals/array-iteration').forEach;\n\nvar aTypedArray = ArrayBufferViewCore.aTypedArray;\nvar exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;\n\n// `%TypedArray%.prototype.forEach` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.foreach\nexportTypedArrayMethod('forEach', function forEach(callbackfn /* , thisArg */) {\n $forEach(aTypedArray(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);\n});\n","'use strict';\nvar TYPED_ARRAYS_CONSTRUCTORS_REQUIRES_WRAPPERS = require('../internals/typed-array-constructors-require-wrappers');\nvar exportTypedArrayStaticMethod = require('../internals/array-buffer-view-core').exportTypedArrayStaticMethod;\nvar typedArrayFrom = require('../internals/typed-array-from');\n\n// `%TypedArray%.from` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.from\nexportTypedArrayStaticMethod('from', typedArrayFrom, TYPED_ARRAYS_CONSTRUCTORS_REQUIRES_WRAPPERS);\n","'use strict';\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\nvar $includes = require('../internals/array-includes').includes;\n\nvar aTypedArray = ArrayBufferViewCore.aTypedArray;\nvar exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;\n\n// `%TypedArray%.prototype.includes` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.includes\nexportTypedArrayMethod('includes', function includes(searchElement /* , fromIndex */) {\n return $includes(aTypedArray(this), searchElement, arguments.length > 1 ? arguments[1] : undefined);\n});\n","'use strict';\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\nvar $indexOf = require('../internals/array-includes').indexOf;\n\nvar aTypedArray = ArrayBufferViewCore.aTypedArray;\nvar exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;\n\n// `%TypedArray%.prototype.indexOf` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.indexof\nexportTypedArrayMethod('indexOf', function indexOf(searchElement /* , fromIndex */) {\n return $indexOf(aTypedArray(this), searchElement, arguments.length > 1 ? arguments[1] : undefined);\n});\n","var createTypedArrayConstructor = require('../internals/typed-array-constructor');\n\n// `Int16Array` constructor\n// https://tc39.github.io/ecma262/#sec-typedarray-objects\ncreateTypedArrayConstructor('Int16', function (init) {\n return function Int16Array(data, byteOffset, length) {\n return init(this, data, byteOffset, length);\n };\n});\n","var createTypedArrayConstructor = require('../internals/typed-array-constructor');\n\n// `Int32Array` constructor\n// https://tc39.github.io/ecma262/#sec-typedarray-objects\ncreateTypedArrayConstructor('Int32', function (init) {\n return function Int32Array(data, byteOffset, length) {\n return init(this, data, byteOffset, length);\n };\n});\n","var createTypedArrayConstructor = require('../internals/typed-array-constructor');\n\n// `Int8Array` constructor\n// https://tc39.github.io/ecma262/#sec-typedarray-objects\ncreateTypedArrayConstructor('Int8', function (init) {\n return function Int8Array(data, byteOffset, length) {\n return init(this, data, byteOffset, length);\n };\n});\n","'use strict';\nvar global = require('../internals/global');\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\nvar ArrayIterators = require('../modules/es.array.iterator');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar ITERATOR = wellKnownSymbol('iterator');\nvar Uint8Array = global.Uint8Array;\nvar arrayValues = ArrayIterators.values;\nvar arrayKeys = ArrayIterators.keys;\nvar arrayEntries = ArrayIterators.entries;\nvar aTypedArray = ArrayBufferViewCore.aTypedArray;\nvar exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;\nvar nativeTypedArrayIterator = Uint8Array && Uint8Array.prototype[ITERATOR];\n\nvar CORRECT_ITER_NAME = !!nativeTypedArrayIterator\n && (nativeTypedArrayIterator.name == 'values' || nativeTypedArrayIterator.name == undefined);\n\nvar typedArrayValues = function values() {\n return arrayValues.call(aTypedArray(this));\n};\n\n// `%TypedArray%.prototype.entries` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.entries\nexportTypedArrayMethod('entries', function entries() {\n return arrayEntries.call(aTypedArray(this));\n});\n// `%TypedArray%.prototype.keys` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.keys\nexportTypedArrayMethod('keys', function keys() {\n return arrayKeys.call(aTypedArray(this));\n});\n// `%TypedArray%.prototype.values` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.values\nexportTypedArrayMethod('values', typedArrayValues, !CORRECT_ITER_NAME);\n// `%TypedArray%.prototype[@@iterator]` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype-@@iterator\nexportTypedArrayMethod(ITERATOR, typedArrayValues, !CORRECT_ITER_NAME);\n","'use strict';\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\n\nvar aTypedArray = ArrayBufferViewCore.aTypedArray;\nvar exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;\nvar $join = [].join;\n\n// `%TypedArray%.prototype.join` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.join\n// eslint-disable-next-line no-unused-vars\nexportTypedArrayMethod('join', function join(separator) {\n return $join.apply(aTypedArray(this), arguments);\n});\n","'use strict';\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\nvar $lastIndexOf = require('../internals/array-last-index-of');\n\nvar aTypedArray = ArrayBufferViewCore.aTypedArray;\nvar exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;\n\n// `%TypedArray%.prototype.lastIndexOf` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.lastindexof\n// eslint-disable-next-line no-unused-vars\nexportTypedArrayMethod('lastIndexOf', function lastIndexOf(searchElement /* , fromIndex */) {\n return $lastIndexOf.apply(aTypedArray(this), arguments);\n});\n","'use strict';\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\nvar $map = require('../internals/array-iteration').map;\nvar speciesConstructor = require('../internals/species-constructor');\n\nvar aTypedArray = ArrayBufferViewCore.aTypedArray;\nvar aTypedArrayConstructor = ArrayBufferViewCore.aTypedArrayConstructor;\nvar exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;\n\n// `%TypedArray%.prototype.map` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.map\nexportTypedArrayMethod('map', function map(mapfn /* , thisArg */) {\n return $map(aTypedArray(this), mapfn, arguments.length > 1 ? arguments[1] : undefined, function (O, length) {\n return new (aTypedArrayConstructor(speciesConstructor(O, O.constructor)))(length);\n });\n});\n","'use strict';\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\nvar TYPED_ARRAYS_CONSTRUCTORS_REQUIRES_WRAPPERS = require('../internals/typed-array-constructors-require-wrappers');\n\nvar aTypedArrayConstructor = ArrayBufferViewCore.aTypedArrayConstructor;\nvar exportTypedArrayStaticMethod = ArrayBufferViewCore.exportTypedArrayStaticMethod;\n\n// `%TypedArray%.of` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.of\nexportTypedArrayStaticMethod('of', function of(/* ...items */) {\n var index = 0;\n var length = arguments.length;\n var result = new (aTypedArrayConstructor(this))(length);\n while (length > index) result[index] = arguments[index++];\n return result;\n}, TYPED_ARRAYS_CONSTRUCTORS_REQUIRES_WRAPPERS);\n","'use strict';\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\nvar $reduceRight = require('../internals/array-reduce').right;\n\nvar aTypedArray = ArrayBufferViewCore.aTypedArray;\nvar exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;\n\n// `%TypedArray%.prototype.reduceRicht` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.reduceright\nexportTypedArrayMethod('reduceRight', function reduceRight(callbackfn /* , initialValue */) {\n return $reduceRight(aTypedArray(this), callbackfn, arguments.length, arguments.length > 1 ? arguments[1] : undefined);\n});\n","'use strict';\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\nvar $reduce = require('../internals/array-reduce').left;\n\nvar aTypedArray = ArrayBufferViewCore.aTypedArray;\nvar exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;\n\n// `%TypedArray%.prototype.reduce` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.reduce\nexportTypedArrayMethod('reduce', function reduce(callbackfn /* , initialValue */) {\n return $reduce(aTypedArray(this), callbackfn, arguments.length, arguments.length > 1 ? arguments[1] : undefined);\n});\n","'use strict';\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\n\nvar aTypedArray = ArrayBufferViewCore.aTypedArray;\nvar exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;\nvar floor = Math.floor;\n\n// `%TypedArray%.prototype.reverse` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.reverse\nexportTypedArrayMethod('reverse', function reverse() {\n var that = this;\n var length = aTypedArray(that).length;\n var middle = floor(length / 2);\n var index = 0;\n var value;\n while (index < middle) {\n value = that[index];\n that[index++] = that[--length];\n that[length] = value;\n } return that;\n});\n","'use strict';\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\nvar toLength = require('../internals/to-length');\nvar toOffset = require('../internals/to-offset');\nvar toObject = require('../internals/to-object');\nvar fails = require('../internals/fails');\n\nvar aTypedArray = ArrayBufferViewCore.aTypedArray;\nvar exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;\n\nvar FORCED = fails(function () {\n // eslint-disable-next-line no-undef\n new Int8Array(1).set({});\n});\n\n// `%TypedArray%.prototype.set` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.set\nexportTypedArrayMethod('set', function set(arrayLike /* , offset */) {\n aTypedArray(this);\n var offset = toOffset(arguments.length > 1 ? arguments[1] : undefined, 1);\n var length = this.length;\n var src = toObject(arrayLike);\n var len = toLength(src.length);\n var index = 0;\n if (len + offset > length) throw RangeError('Wrong length');\n while (index < len) this[offset + index] = src[index++];\n}, FORCED);\n","'use strict';\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\nvar speciesConstructor = require('../internals/species-constructor');\nvar fails = require('../internals/fails');\n\nvar aTypedArray = ArrayBufferViewCore.aTypedArray;\nvar aTypedArrayConstructor = ArrayBufferViewCore.aTypedArrayConstructor;\nvar exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;\nvar $slice = [].slice;\n\nvar FORCED = fails(function () {\n // eslint-disable-next-line no-undef\n new Int8Array(1).slice();\n});\n\n// `%TypedArray%.prototype.slice` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.slice\nexportTypedArrayMethod('slice', function slice(start, end) {\n var list = $slice.call(aTypedArray(this), start, end);\n var C = speciesConstructor(this, this.constructor);\n var index = 0;\n var length = list.length;\n var result = new (aTypedArrayConstructor(C))(length);\n while (length > index) result[index] = list[index++];\n return result;\n}, FORCED);\n","'use strict';\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\nvar $some = require('../internals/array-iteration').some;\n\nvar aTypedArray = ArrayBufferViewCore.aTypedArray;\nvar exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;\n\n// `%TypedArray%.prototype.some` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.some\nexportTypedArrayMethod('some', function some(callbackfn /* , thisArg */) {\n return $some(aTypedArray(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);\n});\n","'use strict';\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\n\nvar aTypedArray = ArrayBufferViewCore.aTypedArray;\nvar exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;\nvar $sort = [].sort;\n\n// `%TypedArray%.prototype.sort` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.sort\nexportTypedArrayMethod('sort', function sort(comparefn) {\n return $sort.call(aTypedArray(this), comparefn);\n});\n","'use strict';\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\nvar toLength = require('../internals/to-length');\nvar toAbsoluteIndex = require('../internals/to-absolute-index');\nvar speciesConstructor = require('../internals/species-constructor');\n\nvar aTypedArray = ArrayBufferViewCore.aTypedArray;\nvar exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;\n\n// `%TypedArray%.prototype.subarray` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.subarray\nexportTypedArrayMethod('subarray', function subarray(begin, end) {\n var O = aTypedArray(this);\n var length = O.length;\n var beginIndex = toAbsoluteIndex(begin, length);\n return new (speciesConstructor(O, O.constructor))(\n O.buffer,\n O.byteOffset + beginIndex * O.BYTES_PER_ELEMENT,\n toLength((end === undefined ? length : toAbsoluteIndex(end, length)) - beginIndex)\n );\n});\n","'use strict';\nvar global = require('../internals/global');\nvar ArrayBufferViewCore = require('../internals/array-buffer-view-core');\nvar fails = require('../internals/fails');\n\nvar Int8Array = global.Int8Array;\nvar aTypedArray = ArrayBufferViewCore.aTypedArray;\nvar exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;\nvar $toLocaleString = [].toLocaleString;\nvar $slice = [].slice;\n\n// iOS Safari 6.x fails here\nvar TO_LOCALE_STRING_BUG = !!Int8Array && fails(function () {\n $toLocaleString.call(new Int8Array(1));\n});\n\nvar FORCED = fails(function () {\n return [1, 2].toLocaleString() != new Int8Array([1, 2]).toLocaleString();\n}) || !fails(function () {\n Int8Array.prototype.toLocaleString.call([1, 2]);\n});\n\n// `%TypedArray%.prototype.toLocaleString` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.tolocalestring\nexportTypedArrayMethod('toLocaleString', function toLocaleString() {\n return $toLocaleString.apply(TO_LOCALE_STRING_BUG ? $slice.call(aTypedArray(this)) : aTypedArray(this), arguments);\n}, FORCED);\n","'use strict';\nvar exportTypedArrayMethod = require('../internals/array-buffer-view-core').exportTypedArrayMethod;\nvar fails = require('../internals/fails');\nvar global = require('../internals/global');\n\nvar Uint8Array = global.Uint8Array;\nvar Uint8ArrayPrototype = Uint8Array && Uint8Array.prototype || {};\nvar arrayToString = [].toString;\nvar arrayJoin = [].join;\n\nif (fails(function () { arrayToString.call({}); })) {\n arrayToString = function toString() {\n return arrayJoin.call(this);\n };\n}\n\nvar IS_NOT_ARRAY_METHOD = Uint8ArrayPrototype.toString != arrayToString;\n\n// `%TypedArray%.prototype.toString` method\n// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.tostring\nexportTypedArrayMethod('toString', arrayToString, IS_NOT_ARRAY_METHOD);\n","var createTypedArrayConstructor = require('../internals/typed-array-constructor');\n\n// `Uint16Array` constructor\n// https://tc39.github.io/ecma262/#sec-typedarray-objects\ncreateTypedArrayConstructor('Uint16', function (init) {\n return function Uint16Array(data, byteOffset, length) {\n return init(this, data, byteOffset, length);\n };\n});\n","var createTypedArrayConstructor = require('../internals/typed-array-constructor');\n\n// `Uint32Array` constructor\n// https://tc39.github.io/ecma262/#sec-typedarray-objects\ncreateTypedArrayConstructor('Uint32', function (init) {\n return function Uint32Array(data, byteOffset, length) {\n return init(this, data, byteOffset, length);\n };\n});\n","var createTypedArrayConstructor = require('../internals/typed-array-constructor');\n\n// `Uint8Array` constructor\n// https://tc39.github.io/ecma262/#sec-typedarray-objects\ncreateTypedArrayConstructor('Uint8', function (init) {\n return function Uint8Array(data, byteOffset, length) {\n return init(this, data, byteOffset, length);\n };\n});\n","var createTypedArrayConstructor = require('../internals/typed-array-constructor');\n\n// `Uint8ClampedArray` constructor\n// https://tc39.github.io/ecma262/#sec-typedarray-objects\ncreateTypedArrayConstructor('Uint8', function (init) {\n return function Uint8ClampedArray(data, byteOffset, length) {\n return init(this, data, byteOffset, length);\n };\n}, true);\n","'use strict';\nvar global = require('../internals/global');\nvar redefineAll = require('../internals/redefine-all');\nvar InternalMetadataModule = require('../internals/internal-metadata');\nvar collection = require('../internals/collection');\nvar collectionWeak = require('../internals/collection-weak');\nvar isObject = require('../internals/is-object');\nvar enforceIternalState = require('../internals/internal-state').enforce;\nvar NATIVE_WEAK_MAP = require('../internals/native-weak-map');\n\nvar IS_IE11 = !global.ActiveXObject && 'ActiveXObject' in global;\nvar isExtensible = Object.isExtensible;\nvar InternalWeakMap;\n\nvar wrapper = function (init) {\n return function WeakMap() {\n return init(this, arguments.length ? arguments[0] : undefined);\n };\n};\n\n// `WeakMap` constructor\n// https://tc39.github.io/ecma262/#sec-weakmap-constructor\nvar $WeakMap = module.exports = collection('WeakMap', wrapper, collectionWeak);\n\n// IE11 WeakMap frozen keys fix\n// We can't use feature detection because it crash some old IE builds\n// https://github.com/zloirock/core-js/issues/485\nif (NATIVE_WEAK_MAP && IS_IE11) {\n InternalWeakMap = collectionWeak.getConstructor(wrapper, 'WeakMap', true);\n InternalMetadataModule.REQUIRED = true;\n var WeakMapPrototype = $WeakMap.prototype;\n var nativeDelete = WeakMapPrototype['delete'];\n var nativeHas = WeakMapPrototype.has;\n var nativeGet = WeakMapPrototype.get;\n var nativeSet = WeakMapPrototype.set;\n redefineAll(WeakMapPrototype, {\n 'delete': function (key) {\n if (isObject(key) && !isExtensible(key)) {\n var state = enforceIternalState(this);\n if (!state.frozen) state.frozen = new InternalWeakMap();\n return nativeDelete.call(this, key) || state.frozen['delete'](key);\n } return nativeDelete.call(this, key);\n },\n has: function has(key) {\n if (isObject(key) && !isExtensible(key)) {\n var state = enforceIternalState(this);\n if (!state.frozen) state.frozen = new InternalWeakMap();\n return nativeHas.call(this, key) || state.frozen.has(key);\n } return nativeHas.call(this, key);\n },\n get: function get(key) {\n if (isObject(key) && !isExtensible(key)) {\n var state = enforceIternalState(this);\n if (!state.frozen) state.frozen = new InternalWeakMap();\n return nativeHas.call(this, key) ? nativeGet.call(this, key) : state.frozen.get(key);\n } return nativeGet.call(this, key);\n },\n set: function set(key, value) {\n if (isObject(key) && !isExtensible(key)) {\n var state = enforceIternalState(this);\n if (!state.frozen) state.frozen = new InternalWeakMap();\n nativeHas.call(this, key) ? nativeSet.call(this, key, value) : state.frozen.set(key, value);\n } else nativeSet.call(this, key, value);\n return this;\n }\n });\n}\n","'use strict';\nvar collection = require('../internals/collection');\nvar collectionWeak = require('../internals/collection-weak');\n\n// `WeakSet` constructor\n// https://tc39.github.io/ecma262/#sec-weakset-constructor\ncollection('WeakSet', function (init) {\n return function WeakSet() { return init(this, arguments.length ? arguments[0] : undefined); };\n}, collectionWeak);\n","'use strict';\nvar $ = require('../internals/export');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar getPrototypeOf = require('../internals/object-get-prototype-of');\nvar setPrototypeOf = require('../internals/object-set-prototype-of');\nvar create = require('../internals/object-create');\nvar defineProperty = require('../internals/object-define-property');\nvar createPropertyDescriptor = require('../internals/create-property-descriptor');\nvar iterate = require('../internals/iterate');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar InternalStateModule = require('../internals/internal-state');\n\nvar setInternalState = InternalStateModule.set;\nvar getInternalAggregateErrorState = InternalStateModule.getterFor('AggregateError');\n\nvar $AggregateError = function AggregateError(errors, message) {\n var that = this;\n if (!(that instanceof $AggregateError)) return new $AggregateError(errors, message);\n if (setPrototypeOf) {\n that = setPrototypeOf(new Error(message), getPrototypeOf(that));\n }\n var errorsArray = [];\n iterate(errors, errorsArray.push, errorsArray);\n if (DESCRIPTORS) setInternalState(that, { errors: errorsArray, type: 'AggregateError' });\n else that.errors = errorsArray;\n if (message !== undefined) createNonEnumerableProperty(that, 'message', String(message));\n return that;\n};\n\n$AggregateError.prototype = create(Error.prototype, {\n constructor: createPropertyDescriptor(5, $AggregateError),\n message: createPropertyDescriptor(5, ''),\n name: createPropertyDescriptor(5, 'AggregateError')\n});\n\nif (DESCRIPTORS) defineProperty.f($AggregateError.prototype, 'errors', {\n get: function () {\n return getInternalAggregateErrorState(this).errors;\n },\n configurable: true\n});\n\n$({ global: true }, {\n AggregateError: $AggregateError\n});\n","var $ = require('../internals/export');\nvar isArray = require('../internals/is-array');\n\nvar isFrozen = Object.isFrozen;\n\nvar isFrozenStringArray = function (array, allowUndefined) {\n if (!isFrozen || !isArray(array) || !isFrozen(array)) return false;\n var index = 0;\n var length = array.length;\n var element;\n while (index < length) {\n element = array[index++];\n if (!(typeof element === 'string' || (allowUndefined && typeof element === 'undefined'))) {\n return false;\n }\n } return length !== 0;\n};\n\n// `Array.isTemplateObject` method\n// https://github.com/tc39/proposal-array-is-template-object\n$({ target: 'Array', stat: true }, {\n isTemplateObject: function isTemplateObject(value) {\n if (!isFrozenStringArray(value, true)) return false;\n var raw = value.raw;\n if (raw.length !== value.length || !isFrozenStringArray(raw, false)) return false;\n return true;\n }\n});\n","'use strict';\nvar DESCRIPTORS = require('../internals/descriptors');\nvar addToUnscopables = require('../internals/add-to-unscopables');\nvar toObject = require('../internals/to-object');\nvar toLength = require('../internals/to-length');\nvar defineProperty = require('../internals/object-define-property').f;\n\n// `Array.prototype.lastIndex` getter\n// https://github.com/keithamus/proposal-array-last\nif (DESCRIPTORS && !('lastIndex' in [])) {\n defineProperty(Array.prototype, 'lastIndex', {\n configurable: true,\n get: function lastIndex() {\n var O = toObject(this);\n var len = toLength(O.length);\n return len == 0 ? 0 : len - 1;\n }\n });\n\n addToUnscopables('lastIndex');\n}\n","'use strict';\nvar DESCRIPTORS = require('../internals/descriptors');\nvar addToUnscopables = require('../internals/add-to-unscopables');\nvar toObject = require('../internals/to-object');\nvar toLength = require('../internals/to-length');\nvar defineProperty = require('../internals/object-define-property').f;\n\n// `Array.prototype.lastIndex` accessor\n// https://github.com/keithamus/proposal-array-last\nif (DESCRIPTORS && !('lastItem' in [])) {\n defineProperty(Array.prototype, 'lastItem', {\n configurable: true,\n get: function lastItem() {\n var O = toObject(this);\n var len = toLength(O.length);\n return len == 0 ? undefined : O[len - 1];\n },\n set: function lastItem(value) {\n var O = toObject(this);\n var len = toLength(O.length);\n return O[len == 0 ? 0 : len - 1] = value;\n }\n });\n\n addToUnscopables('lastItem');\n}\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar anObject = require('../internals/an-object');\nvar createAsyncIteratorProxy = require('../internals/async-iterator-create-proxy');\n\nvar AsyncIteratorProxy = createAsyncIteratorProxy(function (arg, Promise) {\n var state = this;\n var iterator = state.iterator;\n\n return Promise.resolve(anObject(state.next.call(iterator, arg))).then(function (step) {\n if (anObject(step).done) {\n state.done = true;\n return { done: true, value: undefined };\n }\n return { done: false, value: [state.index++, step.value] };\n });\n});\n\n$({ target: 'AsyncIterator', proto: true, real: true }, {\n asIndexedPairs: function asIndexedPairs() {\n return new AsyncIteratorProxy({\n iterator: anObject(this),\n index: 0\n });\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar anInstance = require('../internals/an-instance');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar has = require('../internals/has');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar AsyncIteratorPrototype = require('../internals/async-iterator-prototype');\nvar IS_PURE = require('../internals/is-pure');\n\nvar TO_STRING_TAG = wellKnownSymbol('toStringTag');\n\nvar AsyncIteratorConstructor = function AsyncIterator() {\n anInstance(this, AsyncIteratorConstructor);\n};\n\nAsyncIteratorConstructor.prototype = AsyncIteratorPrototype;\n\nif (!has(AsyncIteratorPrototype, TO_STRING_TAG)) {\n createNonEnumerableProperty(AsyncIteratorPrototype, TO_STRING_TAG, 'AsyncIterator');\n}\n\nif (!has(AsyncIteratorPrototype, 'constructor') || AsyncIteratorPrototype.constructor === Object) {\n createNonEnumerableProperty(AsyncIteratorPrototype, 'constructor', AsyncIteratorConstructor);\n}\n\n$({ global: true, forced: IS_PURE }, {\n AsyncIterator: AsyncIteratorConstructor\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar anObject = require('../internals/an-object');\nvar toPositiveInteger = require('../internals/to-positive-integer');\nvar createAsyncIteratorProxy = require('../internals/async-iterator-create-proxy');\n\nvar AsyncIteratorProxy = createAsyncIteratorProxy(function (arg, Promise) {\n var state = this;\n\n return new Promise(function (resolve, reject) {\n var loop = function () {\n try {\n Promise.resolve(\n anObject(state.next.call(state.iterator, state.remaining ? undefined : arg))\n ).then(function (step) {\n try {\n if (anObject(step).done) {\n state.done = true;\n resolve({ done: true, value: undefined });\n } else if (state.remaining) {\n state.remaining--;\n loop();\n } else resolve({ done: false, value: step.value });\n } catch (err) { reject(err); }\n }, reject);\n } catch (error) { reject(error); }\n };\n\n loop();\n });\n});\n\n$({ target: 'AsyncIterator', proto: true, real: true }, {\n drop: function drop(limit) {\n return new AsyncIteratorProxy({\n iterator: anObject(this),\n remaining: toPositiveInteger(limit)\n });\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar $every = require('../internals/async-iterator-iteration').every;\n\n$({ target: 'AsyncIterator', proto: true, real: true }, {\n every: function every(fn) {\n return $every(this, fn);\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar aFunction = require('../internals/a-function');\nvar anObject = require('../internals/an-object');\nvar createAsyncIteratorProxy = require('../internals/async-iterator-create-proxy');\n\nvar AsyncIteratorProxy = createAsyncIteratorProxy(function (arg, Promise) {\n var state = this;\n var filterer = state.filterer;\n\n return new Promise(function (resolve, reject) {\n var loop = function () {\n try {\n Promise.resolve(anObject(state.next.call(state.iterator, arg))).then(function (step) {\n try {\n if (anObject(step).done) {\n state.done = true;\n resolve({ done: true, value: undefined });\n } else {\n var value = step.value;\n Promise.resolve(filterer(value)).then(function (selected) {\n selected ? resolve({ done: false, value: value }) : loop();\n }, reject);\n }\n } catch (err) { reject(err); }\n }, reject);\n } catch (error) { reject(error); }\n };\n\n loop();\n });\n});\n\n$({ target: 'AsyncIterator', proto: true, real: true }, {\n filter: function filter(filterer) {\n return new AsyncIteratorProxy({\n iterator: anObject(this),\n filterer: aFunction(filterer)\n });\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar $find = require('../internals/async-iterator-iteration').find;\n\n$({ target: 'AsyncIterator', proto: true, real: true }, {\n find: function find(fn) {\n return $find(this, fn);\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar aFunction = require('../internals/a-function');\nvar anObject = require('../internals/an-object');\nvar createAsyncIteratorProxy = require('../internals/async-iterator-create-proxy');\nvar getAsyncIteratorMethod = require('../internals/get-async-iterator-method');\n\nvar AsyncIteratorProxy = createAsyncIteratorProxy(function (arg, Promise) {\n var state = this;\n var mapper = state.mapper;\n var innerIterator, iteratorMethod;\n\n return new Promise(function (resolve, reject) {\n var outerLoop = function () {\n try {\n Promise.resolve(anObject(state.next.call(state.iterator, arg))).then(function (step) {\n try {\n if (anObject(step).done) {\n state.done = true;\n resolve({ done: true, value: undefined });\n } else {\n Promise.resolve(mapper(step.value)).then(function (mapped) {\n try {\n iteratorMethod = getAsyncIteratorMethod(mapped);\n if (iteratorMethod !== undefined) {\n state.innerIterator = innerIterator = anObject(iteratorMethod.call(mapped));\n state.innerNext = aFunction(innerIterator.next);\n return innerLoop();\n } reject(TypeError('.flatMap callback should return an iterable object'));\n } catch (error2) { reject(error2); }\n }, reject);\n }\n } catch (error1) { reject(error1); }\n }, reject);\n } catch (error) { reject(error); }\n };\n\n var innerLoop = function () {\n if (innerIterator = state.innerIterator) {\n try {\n Promise.resolve(anObject(state.innerNext.call(innerIterator))).then(function (result) {\n try {\n if (anObject(result).done) {\n state.innerIterator = state.innerNext = null;\n outerLoop();\n } else resolve({ done: false, value: result.value });\n } catch (error1) { reject(error1); }\n }, reject);\n } catch (error) { reject(error); }\n } else outerLoop();\n };\n\n innerLoop();\n });\n});\n\n$({ target: 'AsyncIterator', proto: true, real: true }, {\n flatMap: function flatMap(mapper) {\n return new AsyncIteratorProxy({\n iterator: anObject(this),\n mapper: aFunction(mapper),\n innerIterator: null,\n innerNext: null\n });\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar $forEach = require('../internals/async-iterator-iteration').forEach;\n\n$({ target: 'AsyncIterator', proto: true, real: true }, {\n forEach: function forEach(fn) {\n return $forEach(this, fn);\n }\n});\n","// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar path = require('../internals/path');\nvar aFunction = require('../internals/a-function');\nvar anObject = require('../internals/an-object');\nvar toObject = require('../internals/to-object');\nvar createAsyncIteratorProxy = require('../internals/async-iterator-create-proxy');\nvar getAsyncIteratorMethod = require('../internals/get-async-iterator-method');\n\nvar AsyncIterator = path.AsyncIterator;\n\nvar AsyncIteratorProxy = createAsyncIteratorProxy(function (arg) {\n return anObject(this.next.call(this.iterator, arg));\n}, true);\n\n$({ target: 'AsyncIterator', stat: true }, {\n from: function from(O) {\n var object = toObject(O);\n var usingIterator = getAsyncIteratorMethod(object);\n var iterator;\n if (usingIterator != null) {\n iterator = aFunction(usingIterator).call(object);\n if (iterator instanceof AsyncIterator) return iterator;\n } else {\n iterator = object;\n } return new AsyncIteratorProxy({\n iterator: iterator\n });\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar aFunction = require('../internals/a-function');\nvar anObject = require('../internals/an-object');\nvar createAsyncIteratorProxy = require('../internals/async-iterator-create-proxy');\n\nvar AsyncIteratorProxy = createAsyncIteratorProxy(function (arg, Promise) {\n var state = this;\n var mapper = state.mapper;\n\n return Promise.resolve(anObject(state.next.call(state.iterator, arg))).then(function (step) {\n if (anObject(step).done) {\n state.done = true;\n return { done: true, value: undefined };\n }\n return Promise.resolve(mapper(step.value)).then(function (value) {\n return { done: false, value: value };\n });\n });\n});\n\n$({ target: 'AsyncIterator', proto: true, real: true }, {\n map: function map(mapper) {\n return new AsyncIteratorProxy({\n iterator: anObject(this),\n mapper: aFunction(mapper)\n });\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar aFunction = require('../internals/a-function');\nvar anObject = require('../internals/an-object');\nvar getBuiltIn = require('../internals/get-built-in');\n\nvar Promise = getBuiltIn('Promise');\n\n$({ target: 'AsyncIterator', proto: true, real: true }, {\n reduce: function reduce(reducer /* , initialValue */) {\n var iterator = anObject(this);\n var next = aFunction(iterator.next);\n var noInitial = arguments.length < 2;\n var accumulator = noInitial ? undefined : arguments[1];\n aFunction(reducer);\n\n return new Promise(function (resolve, reject) {\n var loop = function () {\n try {\n Promise.resolve(anObject(next.call(iterator))).then(function (step) {\n try {\n if (anObject(step).done) {\n noInitial ? reject(TypeError('Reduce of empty iterator with no initial value')) : resolve(accumulator);\n } else {\n var value = step.value;\n if (noInitial) {\n noInitial = false;\n accumulator = value;\n loop();\n } else {\n Promise.resolve(reducer(accumulator, value)).then(function (result) {\n accumulator = result;\n loop();\n }, reject);\n }\n }\n } catch (err) { reject(err); }\n }, reject);\n } catch (error) { reject(error); }\n };\n\n loop();\n });\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar $some = require('../internals/async-iterator-iteration').some;\n\n$({ target: 'AsyncIterator', proto: true, real: true }, {\n some: function some(fn) {\n return $some(this, fn);\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar anObject = require('../internals/an-object');\nvar toPositiveInteger = require('../internals/to-positive-integer');\nvar createAsyncIteratorProxy = require('../internals/async-iterator-create-proxy');\n\nvar AsyncIteratorProxy = createAsyncIteratorProxy(function (arg) {\n if (!this.remaining--) {\n this.done = true;\n return { done: true, value: undefined };\n } return this.next.call(this.iterator, arg);\n});\n\n$({ target: 'AsyncIterator', proto: true, real: true }, {\n take: function take(limit) {\n return new AsyncIteratorProxy({\n iterator: anObject(this),\n remaining: toPositiveInteger(limit)\n });\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar $toArray = require('../internals/async-iterator-iteration').toArray;\n\n$({ target: 'AsyncIterator', proto: true, real: true }, {\n toArray: function toArray() {\n return $toArray(this);\n }\n});\n","var $ = require('../internals/export');\nvar getCompositeKeyNode = require('../internals/composite-key');\nvar getBuiltIn = require('../internals/get-built-in');\nvar create = require('../internals/object-create');\n\nvar initializer = function () {\n var freeze = getBuiltIn('Object', 'freeze');\n return freeze ? freeze(create(null)) : create(null);\n};\n\n// https://github.com/tc39/proposal-richer-keys/tree/master/compositeKey\n$({ global: true }, {\n compositeKey: function compositeKey() {\n return getCompositeKeyNode.apply(Object, arguments).get('object', initializer);\n }\n});\n","var $ = require('../internals/export');\nvar getCompositeKeyNode = require('../internals/composite-key');\nvar getBuiltIn = require('../internals/get-built-in');\n\n// https://github.com/tc39/proposal-richer-keys/tree/master/compositeKey\n$({ global: true }, {\n compositeSymbol: function compositeSymbol() {\n if (arguments.length === 1 && typeof arguments[0] === 'string') return getBuiltIn('Symbol')['for'](arguments[0]);\n return getCompositeKeyNode.apply(null, arguments).get('symbol', getBuiltIn('Symbol'));\n }\n});\n","// TODO: Remove from `core-js@4`\nrequire('./es.global-this');\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar anObject = require('../internals/an-object');\nvar createIteratorProxy = require('../internals/iterator-create-proxy');\n\nvar IteratorProxy = createIteratorProxy(function (arg) {\n var result = anObject(this.next.call(this.iterator, arg));\n var done = this.done = !!result.done;\n if (!done) return [this.index++, result.value];\n});\n\n$({ target: 'Iterator', proto: true, real: true }, {\n asIndexedPairs: function asIndexedPairs() {\n return new IteratorProxy({\n iterator: anObject(this),\n index: 0\n });\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar global = require('../internals/global');\nvar anInstance = require('../internals/an-instance');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar fails = require('../internals/fails');\nvar has = require('../internals/has');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar IteratorPrototype = require('../internals/iterators-core').IteratorPrototype;\nvar IS_PURE = require('../internals/is-pure');\n\nvar ITERATOR = wellKnownSymbol('iterator');\nvar TO_STRING_TAG = wellKnownSymbol('toStringTag');\n\nvar NativeIterator = global.Iterator;\n\n// FF56- have non-standard global helper `Iterator`\nvar FORCED = IS_PURE\n || typeof NativeIterator != 'function'\n || NativeIterator.prototype !== IteratorPrototype\n // FF44- non-standard `Iterator` passes previous tests\n || !fails(function () { NativeIterator({}); });\n\nvar IteratorConstructor = function Iterator() {\n anInstance(this, IteratorConstructor);\n};\n\nif (IS_PURE) {\n IteratorPrototype = {};\n createNonEnumerableProperty(IteratorPrototype, ITERATOR, function () {\n return this;\n });\n}\n\nif (!has(IteratorPrototype, TO_STRING_TAG)) {\n createNonEnumerableProperty(IteratorPrototype, TO_STRING_TAG, 'Iterator');\n}\n\nif (FORCED || !has(IteratorPrototype, 'constructor') || IteratorPrototype.constructor === Object) {\n createNonEnumerableProperty(IteratorPrototype, 'constructor', IteratorConstructor);\n}\n\nIteratorConstructor.prototype = IteratorPrototype;\n\n$({ global: true, forced: FORCED }, {\n Iterator: IteratorConstructor\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar anObject = require('../internals/an-object');\nvar toPositiveInteger = require('../internals/to-positive-integer');\nvar createIteratorProxy = require('../internals/iterator-create-proxy');\n\nvar IteratorProxy = createIteratorProxy(function (arg) {\n var iterator = this.iterator;\n var next = this.next;\n var result, done;\n while (this.remaining) {\n this.remaining--;\n result = anObject(next.call(iterator));\n done = this.done = !!result.done;\n if (done) return;\n }\n result = anObject(next.call(iterator, arg));\n done = this.done = !!result.done;\n if (!done) return result.value;\n});\n\n$({ target: 'Iterator', proto: true, real: true }, {\n drop: function drop(limit) {\n return new IteratorProxy({\n iterator: anObject(this),\n remaining: toPositiveInteger(limit)\n });\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar iterate = require('../internals/iterate');\nvar aFunction = require('../internals/a-function');\nvar anObject = require('../internals/an-object');\n\n$({ target: 'Iterator', proto: true, real: true }, {\n every: function every(fn) {\n anObject(this);\n aFunction(fn);\n return !iterate(this, function (value) {\n if (!fn(value)) return iterate.stop();\n }, undefined, false, true).stopped;\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar aFunction = require('../internals/a-function');\nvar anObject = require('../internals/an-object');\nvar createIteratorProxy = require('../internals/iterator-create-proxy');\nvar callWithSafeIterationClosing = require('../internals/call-with-safe-iteration-closing');\n\nvar IteratorProxy = createIteratorProxy(function (arg) {\n var iterator = this.iterator;\n var filterer = this.filterer;\n var next = this.next;\n var result, done, value;\n while (true) {\n result = anObject(next.call(iterator, arg));\n done = this.done = !!result.done;\n if (done) return;\n value = result.value;\n if (callWithSafeIterationClosing(iterator, filterer, value)) return value;\n }\n});\n\n$({ target: 'Iterator', proto: true, real: true }, {\n filter: function filter(filterer) {\n return new IteratorProxy({\n iterator: anObject(this),\n filterer: aFunction(filterer)\n });\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar iterate = require('../internals/iterate');\nvar aFunction = require('../internals/a-function');\nvar anObject = require('../internals/an-object');\n\n$({ target: 'Iterator', proto: true, real: true }, {\n find: function find(fn) {\n anObject(this);\n aFunction(fn);\n return iterate(this, function (value) {\n if (fn(value)) return iterate.stop(value);\n }, undefined, false, true).result;\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar aFunction = require('../internals/a-function');\nvar anObject = require('../internals/an-object');\nvar getIteratorMethod = require('../internals/get-iterator-method');\nvar createIteratorProxy = require('../internals/iterator-create-proxy');\nvar callWithSafeIterationClosing = require('../internals/call-with-safe-iteration-closing');\n\nvar IteratorProxy = createIteratorProxy(function (arg) {\n var iterator = this.iterator;\n var result, mapped, iteratorMethod, innerIterator;\n\n while (true) {\n if (innerIterator = this.innerIterator) {\n result = anObject(this.innerNext.call(innerIterator));\n if (!result.done) return result.value;\n this.innerIterator = this.innerNext = null;\n }\n\n result = anObject(this.next.call(iterator, arg));\n\n if (this.done = !!result.done) return;\n\n mapped = callWithSafeIterationClosing(iterator, this.mapper, result.value);\n iteratorMethod = getIteratorMethod(mapped);\n\n if (iteratorMethod === undefined) {\n throw TypeError('.flatMap callback should return an iterable object');\n }\n\n this.innerIterator = innerIterator = anObject(iteratorMethod.call(mapped));\n this.innerNext = aFunction(innerIterator.next);\n }\n});\n\n$({ target: 'Iterator', proto: true, real: true }, {\n flatMap: function flatMap(mapper) {\n return new IteratorProxy({\n iterator: anObject(this),\n mapper: aFunction(mapper),\n innerIterator: null,\n innerNext: null\n });\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar iterate = require('../internals/iterate');\nvar anObject = require('../internals/an-object');\n\n$({ target: 'Iterator', proto: true, real: true }, {\n forEach: function forEach(fn) {\n iterate(anObject(this), fn, undefined, false, true);\n }\n});\n","// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar path = require('../internals/path');\nvar aFunction = require('../internals/a-function');\nvar anObject = require('../internals/an-object');\nvar toObject = require('../internals/to-object');\nvar createIteratorProxy = require('../internals/iterator-create-proxy');\nvar getIteratorMethod = require('../internals/get-iterator-method');\n\nvar Iterator = path.Iterator;\n\nvar IteratorProxy = createIteratorProxy(function (arg) {\n var result = anObject(this.next.call(this.iterator, arg));\n var done = this.done = !!result.done;\n if (!done) return result.value;\n}, true);\n\n$({ target: 'Iterator', stat: true }, {\n from: function from(O) {\n var object = toObject(O);\n var usingIterator = getIteratorMethod(object);\n var iterator;\n if (usingIterator != null) {\n iterator = aFunction(usingIterator).call(object);\n if (iterator instanceof Iterator) return iterator;\n } else {\n iterator = object;\n } return new IteratorProxy({\n iterator: iterator\n });\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar aFunction = require('../internals/a-function');\nvar anObject = require('../internals/an-object');\nvar createIteratorProxy = require('../internals/iterator-create-proxy');\nvar callWithSafeIterationClosing = require('../internals/call-with-safe-iteration-closing');\n\nvar IteratorProxy = createIteratorProxy(function (arg) {\n var iterator = this.iterator;\n var result = anObject(this.next.call(iterator, arg));\n var done = this.done = !!result.done;\n if (!done) return callWithSafeIterationClosing(iterator, this.mapper, result.value);\n});\n\n$({ target: 'Iterator', proto: true, real: true }, {\n map: function map(mapper) {\n return new IteratorProxy({\n iterator: anObject(this),\n mapper: aFunction(mapper)\n });\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar iterate = require('../internals/iterate');\nvar aFunction = require('../internals/a-function');\nvar anObject = require('../internals/an-object');\n\n$({ target: 'Iterator', proto: true, real: true }, {\n reduce: function reduce(reducer /* , initialValue */) {\n anObject(this);\n aFunction(reducer);\n var noInitial = arguments.length < 2;\n var accumulator = noInitial ? undefined : arguments[1];\n iterate(this, function (value) {\n if (noInitial) {\n noInitial = false;\n accumulator = value;\n } else {\n accumulator = reducer(accumulator, value);\n }\n }, undefined, false, true);\n if (noInitial) throw TypeError('Reduce of empty iterator with no initial value');\n return accumulator;\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar iterate = require('../internals/iterate');\nvar aFunction = require('../internals/a-function');\nvar anObject = require('../internals/an-object');\n\n$({ target: 'Iterator', proto: true, real: true }, {\n some: function some(fn) {\n anObject(this);\n aFunction(fn);\n return iterate(this, function (value) {\n if (fn(value)) return iterate.stop();\n }, undefined, false, true).stopped;\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar anObject = require('../internals/an-object');\nvar toPositiveInteger = require('../internals/to-positive-integer');\nvar createIteratorProxy = require('../internals/iterator-create-proxy');\n\nvar IteratorProxy = createIteratorProxy(function (arg) {\n if (!this.remaining--) {\n this.done = true;\n return;\n }\n var result = anObject(this.next.call(this.iterator, arg));\n var done = this.done = !!result.done;\n if (!done) return result.value;\n});\n\n$({ target: 'Iterator', proto: true, real: true }, {\n take: function take(limit) {\n return new IteratorProxy({\n iterator: anObject(this),\n remaining: toPositiveInteger(limit)\n });\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-iterator-helpers\nvar $ = require('../internals/export');\nvar iterate = require('../internals/iterate');\nvar anObject = require('../internals/an-object');\n\nvar push = [].push;\n\n$({ target: 'Iterator', proto: true, real: true }, {\n toArray: function toArray() {\n var result = [];\n iterate(anObject(this), push, result, false, true);\n return result;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar collectionDeleteAll = require('../internals/collection-delete-all');\n\n// `Map.prototype.deleteAll` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Map', proto: true, real: true, forced: IS_PURE }, {\n deleteAll: function deleteAll(/* ...elements */) {\n return collectionDeleteAll.apply(this, arguments);\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar anObject = require('../internals/an-object');\nvar bind = require('../internals/function-bind-context');\nvar getMapIterator = require('../internals/get-map-iterator');\nvar iterate = require('../internals/iterate');\n\n// `Map.prototype.every` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Map', proto: true, real: true, forced: IS_PURE }, {\n every: function every(callbackfn /* , thisArg */) {\n var map = anObject(this);\n var iterator = getMapIterator(map);\n var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);\n return !iterate(iterator, function (key, value) {\n if (!boundFunction(value, key, map)) return iterate.stop();\n }, undefined, true, true).stopped;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar getBuiltIn = require('../internals/get-built-in');\nvar anObject = require('../internals/an-object');\nvar aFunction = require('../internals/a-function');\nvar bind = require('../internals/function-bind-context');\nvar speciesConstructor = require('../internals/species-constructor');\nvar getMapIterator = require('../internals/get-map-iterator');\nvar iterate = require('../internals/iterate');\n\n// `Map.prototype.filter` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Map', proto: true, real: true, forced: IS_PURE }, {\n filter: function filter(callbackfn /* , thisArg */) {\n var map = anObject(this);\n var iterator = getMapIterator(map);\n var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);\n var newMap = new (speciesConstructor(map, getBuiltIn('Map')))();\n var setter = aFunction(newMap.set);\n iterate(iterator, function (key, value) {\n if (boundFunction(value, key, map)) setter.call(newMap, key, value);\n }, undefined, true, true);\n return newMap;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar anObject = require('../internals/an-object');\nvar bind = require('../internals/function-bind-context');\nvar getMapIterator = require('../internals/get-map-iterator');\nvar iterate = require('../internals/iterate');\n\n// `Map.prototype.findKey` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Map', proto: true, real: true, forced: IS_PURE }, {\n findKey: function findKey(callbackfn /* , thisArg */) {\n var map = anObject(this);\n var iterator = getMapIterator(map);\n var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);\n return iterate(iterator, function (key, value) {\n if (boundFunction(value, key, map)) return iterate.stop(key);\n }, undefined, true, true).result;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar anObject = require('../internals/an-object');\nvar bind = require('../internals/function-bind-context');\nvar getMapIterator = require('../internals/get-map-iterator');\nvar iterate = require('../internals/iterate');\n\n// `Map.prototype.find` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Map', proto: true, real: true, forced: IS_PURE }, {\n find: function find(callbackfn /* , thisArg */) {\n var map = anObject(this);\n var iterator = getMapIterator(map);\n var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);\n return iterate(iterator, function (key, value) {\n if (boundFunction(value, key, map)) return iterate.stop(value);\n }, undefined, true, true).result;\n }\n});\n","var $ = require('../internals/export');\nvar from = require('../internals/collection-from');\n\n// `Map.from` method\n// https://tc39.github.io/proposal-setmap-offrom/#sec-map.from\n$({ target: 'Map', stat: true }, {\n from: from\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar iterate = require('../internals/iterate');\nvar aFunction = require('../internals/a-function');\n\n// `Map.groupBy` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Map', stat: true }, {\n groupBy: function groupBy(iterable, keyDerivative) {\n var newMap = new this();\n aFunction(keyDerivative);\n var has = aFunction(newMap.has);\n var get = aFunction(newMap.get);\n var set = aFunction(newMap.set);\n iterate(iterable, function (element) {\n var derivedKey = keyDerivative(element);\n if (!has.call(newMap, derivedKey)) set.call(newMap, derivedKey, [element]);\n else get.call(newMap, derivedKey).push(element);\n });\n return newMap;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar anObject = require('../internals/an-object');\nvar getMapIterator = require('../internals/get-map-iterator');\nvar sameValueZero = require('../internals/same-value-zero');\nvar iterate = require('../internals/iterate');\n\n// `Map.prototype.includes` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Map', proto: true, real: true, forced: IS_PURE }, {\n includes: function includes(searchElement) {\n return iterate(getMapIterator(anObject(this)), function (key, value) {\n if (sameValueZero(value, searchElement)) return iterate.stop();\n }, undefined, true, true).stopped;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar iterate = require('../internals/iterate');\nvar aFunction = require('../internals/a-function');\n\n// `Map.keyBy` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Map', stat: true }, {\n keyBy: function keyBy(iterable, keyDerivative) {\n var newMap = new this();\n aFunction(keyDerivative);\n var setter = aFunction(newMap.set);\n iterate(iterable, function (element) {\n setter.call(newMap, keyDerivative(element), element);\n });\n return newMap;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar anObject = require('../internals/an-object');\nvar getMapIterator = require('../internals/get-map-iterator');\nvar iterate = require('../internals/iterate');\n\n// `Map.prototype.includes` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Map', proto: true, real: true, forced: IS_PURE }, {\n keyOf: function keyOf(searchElement) {\n return iterate(getMapIterator(anObject(this)), function (key, value) {\n if (value === searchElement) return iterate.stop(key);\n }, undefined, true, true).result;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar getBuiltIn = require('../internals/get-built-in');\nvar anObject = require('../internals/an-object');\nvar aFunction = require('../internals/a-function');\nvar bind = require('../internals/function-bind-context');\nvar speciesConstructor = require('../internals/species-constructor');\nvar getMapIterator = require('../internals/get-map-iterator');\nvar iterate = require('../internals/iterate');\n\n// `Map.prototype.mapKeys` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Map', proto: true, real: true, forced: IS_PURE }, {\n mapKeys: function mapKeys(callbackfn /* , thisArg */) {\n var map = anObject(this);\n var iterator = getMapIterator(map);\n var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);\n var newMap = new (speciesConstructor(map, getBuiltIn('Map')))();\n var setter = aFunction(newMap.set);\n iterate(iterator, function (key, value) {\n setter.call(newMap, boundFunction(value, key, map), value);\n }, undefined, true, true);\n return newMap;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar getBuiltIn = require('../internals/get-built-in');\nvar anObject = require('../internals/an-object');\nvar aFunction = require('../internals/a-function');\nvar bind = require('../internals/function-bind-context');\nvar speciesConstructor = require('../internals/species-constructor');\nvar getMapIterator = require('../internals/get-map-iterator');\nvar iterate = require('../internals/iterate');\n\n// `Map.prototype.mapValues` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Map', proto: true, real: true, forced: IS_PURE }, {\n mapValues: function mapValues(callbackfn /* , thisArg */) {\n var map = anObject(this);\n var iterator = getMapIterator(map);\n var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);\n var newMap = new (speciesConstructor(map, getBuiltIn('Map')))();\n var setter = aFunction(newMap.set);\n iterate(iterator, function (key, value) {\n setter.call(newMap, key, boundFunction(value, key, map));\n }, undefined, true, true);\n return newMap;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar anObject = require('../internals/an-object');\nvar aFunction = require('../internals/a-function');\nvar iterate = require('../internals/iterate');\n\n// `Map.prototype.merge` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Map', proto: true, real: true, forced: IS_PURE }, {\n // eslint-disable-next-line no-unused-vars\n merge: function merge(iterable /* ...iterbles */) {\n var map = anObject(this);\n var setter = aFunction(map.set);\n var i = 0;\n while (i < arguments.length) {\n iterate(arguments[i++], setter, map, true);\n }\n return map;\n }\n});\n","var $ = require('../internals/export');\nvar of = require('../internals/collection-of');\n\n// `Map.of` method\n// https://tc39.github.io/proposal-setmap-offrom/#sec-map.of\n$({ target: 'Map', stat: true }, {\n of: of\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar anObject = require('../internals/an-object');\nvar aFunction = require('../internals/a-function');\nvar getMapIterator = require('../internals/get-map-iterator');\nvar iterate = require('../internals/iterate');\n\n// `Map.prototype.reduce` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Map', proto: true, real: true, forced: IS_PURE }, {\n reduce: function reduce(callbackfn /* , initialValue */) {\n var map = anObject(this);\n var iterator = getMapIterator(map);\n var noInitial = arguments.length < 2;\n var accumulator = noInitial ? undefined : arguments[1];\n aFunction(callbackfn);\n iterate(iterator, function (key, value) {\n if (noInitial) {\n noInitial = false;\n accumulator = value;\n } else {\n accumulator = callbackfn(accumulator, value, key, map);\n }\n }, undefined, true, true);\n if (noInitial) throw TypeError('Reduce of empty map with no initial value');\n return accumulator;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar anObject = require('../internals/an-object');\nvar bind = require('../internals/function-bind-context');\nvar getMapIterator = require('../internals/get-map-iterator');\nvar iterate = require('../internals/iterate');\n\n// `Set.prototype.some` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Map', proto: true, real: true, forced: IS_PURE }, {\n some: function some(callbackfn /* , thisArg */) {\n var map = anObject(this);\n var iterator = getMapIterator(map);\n var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);\n return iterate(iterator, function (key, value) {\n if (boundFunction(value, key, map)) return iterate.stop();\n }, undefined, true, true).stopped;\n }\n});\n","'use strict';\n// TODO: remove from `core-js@4`\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar $upsert = require('../internals/map-upsert');\n\n// `Map.prototype.updateOrInsert` method (replaced by `Map.prototype.upsert`)\n// https://github.com/thumbsupep/proposal-upsert\n$({ target: 'Map', proto: true, real: true, forced: IS_PURE }, {\n updateOrInsert: $upsert\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar anObject = require('../internals/an-object');\nvar aFunction = require('../internals/a-function');\n\n// `Set.prototype.update` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Map', proto: true, real: true, forced: IS_PURE }, {\n update: function update(key, callback /* , thunk */) {\n var map = anObject(this);\n var length = arguments.length;\n aFunction(callback);\n var isPresentInMap = map.has(key);\n if (!isPresentInMap && length < 3) {\n throw TypeError('Updating absent value');\n }\n var value = isPresentInMap ? map.get(key) : aFunction(length > 2 ? arguments[2] : undefined)(key, map);\n map.set(key, callback(value, key, map));\n return map;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar $upsert = require('../internals/map-upsert');\n\n// `Map.prototype.upsert` method\n// https://github.com/thumbsupep/proposal-upsert\n$({ target: 'Map', proto: true, real: true, forced: IS_PURE }, {\n upsert: $upsert\n});\n","var $ = require('../internals/export');\n\nvar min = Math.min;\nvar max = Math.max;\n\n// `Math.clamp` method\n// https://rwaldron.github.io/proposal-math-extensions/\n$({ target: 'Math', stat: true }, {\n clamp: function clamp(x, lower, upper) {\n return min(upper, max(lower, x));\n }\n});\n","var $ = require('../internals/export');\n\n// `Math.DEG_PER_RAD` constant\n// https://rwaldron.github.io/proposal-math-extensions/\n$({ target: 'Math', stat: true }, {\n DEG_PER_RAD: Math.PI / 180\n});\n","var $ = require('../internals/export');\n\nvar RAD_PER_DEG = 180 / Math.PI;\n\n// `Math.degrees` method\n// https://rwaldron.github.io/proposal-math-extensions/\n$({ target: 'Math', stat: true }, {\n degrees: function degrees(radians) {\n return radians * RAD_PER_DEG;\n }\n});\n","var $ = require('../internals/export');\n\nvar scale = require('../internals/math-scale');\nvar fround = require('../internals/math-fround');\n\n// `Math.fscale` method\n// https://rwaldron.github.io/proposal-math-extensions/\n$({ target: 'Math', stat: true }, {\n fscale: function fscale(x, inLow, inHigh, outLow, outHigh) {\n return fround(scale(x, inLow, inHigh, outLow, outHigh));\n }\n});\n","var $ = require('../internals/export');\n\n// `Math.iaddh` method\n// https://gist.github.com/BrendanEich/4294d5c212a6d2254703\n// TODO: Remove from `core-js@4`\n$({ target: 'Math', stat: true }, {\n iaddh: function iaddh(x0, x1, y0, y1) {\n var $x0 = x0 >>> 0;\n var $x1 = x1 >>> 0;\n var $y0 = y0 >>> 0;\n return $x1 + (y1 >>> 0) + (($x0 & $y0 | ($x0 | $y0) & ~($x0 + $y0 >>> 0)) >>> 31) | 0;\n }\n});\n","var $ = require('../internals/export');\n\n// `Math.imulh` method\n// https://gist.github.com/BrendanEich/4294d5c212a6d2254703\n// TODO: Remove from `core-js@4`\n$({ target: 'Math', stat: true }, {\n imulh: function imulh(u, v) {\n var UINT16 = 0xFFFF;\n var $u = +u;\n var $v = +v;\n var u0 = $u & UINT16;\n var v0 = $v & UINT16;\n var u1 = $u >> 16;\n var v1 = $v >> 16;\n var t = (u1 * v0 >>> 0) + (u0 * v0 >>> 16);\n return u1 * v1 + (t >> 16) + ((u0 * v1 >>> 0) + (t & UINT16) >> 16);\n }\n});\n","var $ = require('../internals/export');\n\n// `Math.isubh` method\n// https://gist.github.com/BrendanEich/4294d5c212a6d2254703\n// TODO: Remove from `core-js@4`\n$({ target: 'Math', stat: true }, {\n isubh: function isubh(x0, x1, y0, y1) {\n var $x0 = x0 >>> 0;\n var $x1 = x1 >>> 0;\n var $y0 = y0 >>> 0;\n return $x1 - (y1 >>> 0) - ((~$x0 & $y0 | ~($x0 ^ $y0) & $x0 - $y0 >>> 0) >>> 31) | 0;\n }\n});\n","var $ = require('../internals/export');\n\n// `Math.RAD_PER_DEG` constant\n// https://rwaldron.github.io/proposal-math-extensions/\n$({ target: 'Math', stat: true }, {\n RAD_PER_DEG: 180 / Math.PI\n});\n","var $ = require('../internals/export');\n\nvar DEG_PER_RAD = Math.PI / 180;\n\n// `Math.radians` method\n// https://rwaldron.github.io/proposal-math-extensions/\n$({ target: 'Math', stat: true }, {\n radians: function radians(degrees) {\n return degrees * DEG_PER_RAD;\n }\n});\n","var $ = require('../internals/export');\nvar scale = require('../internals/math-scale');\n\n// `Math.scale` method\n// https://rwaldron.github.io/proposal-math-extensions/\n$({ target: 'Math', stat: true }, {\n scale: scale\n});\n","var $ = require('../internals/export');\nvar anObject = require('../internals/an-object');\nvar numberIsFinite = require('../internals/number-is-finite');\nvar createIteratorConstructor = require('../internals/create-iterator-constructor');\nvar InternalStateModule = require('../internals/internal-state');\n\nvar SEEDED_RANDOM = 'Seeded Random';\nvar SEEDED_RANDOM_GENERATOR = SEEDED_RANDOM + ' Generator';\nvar setInternalState = InternalStateModule.set;\nvar getInternalState = InternalStateModule.getterFor(SEEDED_RANDOM_GENERATOR);\nvar SEED_TYPE_ERROR = 'Math.seededPRNG() argument should have a \"seed\" field with a finite value.';\n\nvar $SeededRandomGenerator = createIteratorConstructor(function SeededRandomGenerator(seed) {\n setInternalState(this, {\n type: SEEDED_RANDOM_GENERATOR,\n seed: seed % 2147483647\n });\n}, SEEDED_RANDOM, function next() {\n var state = getInternalState(this);\n var seed = state.seed = (state.seed * 1103515245 + 12345) % 2147483647;\n return { value: (seed & 1073741823) / 1073741823, done: false };\n});\n\n// `Math.seededPRNG` method\n// https://github.com/tc39/proposal-seeded-random\n// based on https://github.com/tc39/proposal-seeded-random/blob/78b8258835b57fc2100d076151ab506bc3202ae6/demo.html\n$({ target: 'Math', stat: true, forced: true }, {\n seededPRNG: function seededPRNG(it) {\n var seed = anObject(it).seed;\n if (!numberIsFinite(seed)) throw TypeError(SEED_TYPE_ERROR);\n return new $SeededRandomGenerator(seed);\n }\n});\n","var $ = require('../internals/export');\n\n// `Math.signbit` method\n// https://github.com/tc39/proposal-Math.signbit\n$({ target: 'Math', stat: true }, {\n signbit: function signbit(x) {\n return (x = +x) == x && x == 0 ? 1 / x == -Infinity : x < 0;\n }\n});\n","var $ = require('../internals/export');\n\n// `Math.umulh` method\n// https://gist.github.com/BrendanEich/4294d5c212a6d2254703\n// TODO: Remove from `core-js@4`\n$({ target: 'Math', stat: true }, {\n umulh: function umulh(u, v) {\n var UINT16 = 0xFFFF;\n var $u = +u;\n var $v = +v;\n var u0 = $u & UINT16;\n var v0 = $v & UINT16;\n var u1 = $u >>> 16;\n var v1 = $v >>> 16;\n var t = (u1 * v0 >>> 0) + (u0 * v0 >>> 16);\n return u1 * v1 + (t >>> 16) + ((u0 * v1 >>> 0) + (t & UINT16) >>> 16);\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar toInteger = require('../internals/to-integer');\nvar parseInt = require('../internals/number-parse-int');\n\nvar INVALID_NUMBER_REPRESENTATION = 'Invalid number representation';\nvar INVALID_RADIX = 'Invalid radix';\nvar valid = /^[\\da-z]+$/;\n\n// `Number.fromString` method\n// https://github.com/tc39/proposal-number-fromstring\n$({ target: 'Number', stat: true }, {\n fromString: function fromString(string, radix) {\n var sign = 1;\n var R, mathNum;\n if (typeof string != 'string') throw TypeError(INVALID_NUMBER_REPRESENTATION);\n if (!string.length) throw SyntaxError(INVALID_NUMBER_REPRESENTATION);\n if (string.charAt(0) == '-') {\n sign = -1;\n string = string.slice(1);\n if (!string.length) throw SyntaxError(INVALID_NUMBER_REPRESENTATION);\n }\n R = radix === undefined ? 10 : toInteger(radix);\n if (R < 2 || R > 36) throw RangeError(INVALID_RADIX);\n if (!valid.test(string) || (mathNum = parseInt(string, R)).toString(R) !== string) {\n throw SyntaxError(INVALID_NUMBER_REPRESENTATION);\n }\n return sign * mathNum;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar ObjectIterator = require('../internals/object-iterator');\n\n// `Object.iterateEntries` method\n// https://github.com/tc39/proposal-object-iteration\n$({ target: 'Object', stat: true }, {\n iterateEntries: function iterateEntries(object) {\n return new ObjectIterator(object, 'entries');\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar ObjectIterator = require('../internals/object-iterator');\n\n// `Object.iterateKeys` method\n// https://github.com/tc39/proposal-object-iteration\n$({ target: 'Object', stat: true }, {\n iterateKeys: function iterateKeys(object) {\n return new ObjectIterator(object, 'keys');\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar ObjectIterator = require('../internals/object-iterator');\n\n// `Object.iterateValues` method\n// https://github.com/tc39/proposal-object-iteration\n$({ target: 'Object', stat: true }, {\n iterateValues: function iterateValues(object) {\n return new ObjectIterator(object, 'values');\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-observable\nvar $ = require('../internals/export');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar setSpecies = require('../internals/set-species');\nvar aFunction = require('../internals/a-function');\nvar anObject = require('../internals/an-object');\nvar isObject = require('../internals/is-object');\nvar anInstance = require('../internals/an-instance');\nvar defineProperty = require('../internals/object-define-property').f;\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar redefineAll = require('../internals/redefine-all');\nvar getIterator = require('../internals/get-iterator');\nvar iterate = require('../internals/iterate');\nvar hostReportErrors = require('../internals/host-report-errors');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar InternalStateModule = require('../internals/internal-state');\n\nvar OBSERVABLE = wellKnownSymbol('observable');\nvar getInternalState = InternalStateModule.get;\nvar setInternalState = InternalStateModule.set;\n\nvar getMethod = function (fn) {\n return fn == null ? undefined : aFunction(fn);\n};\n\nvar cleanupSubscription = function (subscriptionState) {\n var cleanup = subscriptionState.cleanup;\n if (cleanup) {\n subscriptionState.cleanup = undefined;\n try {\n cleanup();\n } catch (error) {\n hostReportErrors(error);\n }\n }\n};\n\nvar subscriptionClosed = function (subscriptionState) {\n return subscriptionState.observer === undefined;\n};\n\nvar close = function (subscription, subscriptionState) {\n if (!DESCRIPTORS) {\n subscription.closed = true;\n var subscriptionObserver = subscriptionState.subscriptionObserver;\n if (subscriptionObserver) subscriptionObserver.closed = true;\n } subscriptionState.observer = undefined;\n};\n\nvar Subscription = function (observer, subscriber) {\n var subscriptionState = setInternalState(this, {\n cleanup: undefined,\n observer: anObject(observer),\n subscriptionObserver: undefined\n });\n var start;\n if (!DESCRIPTORS) this.closed = false;\n try {\n if (start = getMethod(observer.start)) start.call(observer, this);\n } catch (error) {\n hostReportErrors(error);\n }\n if (subscriptionClosed(subscriptionState)) return;\n var subscriptionObserver = subscriptionState.subscriptionObserver = new SubscriptionObserver(this);\n try {\n var cleanup = subscriber(subscriptionObserver);\n var subscription = cleanup;\n if (cleanup != null) subscriptionState.cleanup = typeof cleanup.unsubscribe === 'function'\n ? function () { subscription.unsubscribe(); }\n : aFunction(cleanup);\n } catch (error) {\n subscriptionObserver.error(error);\n return;\n } if (subscriptionClosed(subscriptionState)) cleanupSubscription(subscriptionState);\n};\n\nSubscription.prototype = redefineAll({}, {\n unsubscribe: function unsubscribe() {\n var subscriptionState = getInternalState(this);\n if (!subscriptionClosed(subscriptionState)) {\n close(this, subscriptionState);\n cleanupSubscription(subscriptionState);\n }\n }\n});\n\nif (DESCRIPTORS) defineProperty(Subscription.prototype, 'closed', {\n configurable: true,\n get: function () {\n return subscriptionClosed(getInternalState(this));\n }\n});\n\nvar SubscriptionObserver = function (subscription) {\n setInternalState(this, { subscription: subscription });\n if (!DESCRIPTORS) this.closed = false;\n};\n\nSubscriptionObserver.prototype = redefineAll({}, {\n next: function next(value) {\n var subscriptionState = getInternalState(getInternalState(this).subscription);\n if (!subscriptionClosed(subscriptionState)) {\n var observer = subscriptionState.observer;\n try {\n var nextMethod = getMethod(observer.next);\n if (nextMethod) nextMethod.call(observer, value);\n } catch (error) {\n hostReportErrors(error);\n }\n }\n },\n error: function error(value) {\n var subscription = getInternalState(this).subscription;\n var subscriptionState = getInternalState(subscription);\n if (!subscriptionClosed(subscriptionState)) {\n var observer = subscriptionState.observer;\n close(subscription, subscriptionState);\n try {\n var errorMethod = getMethod(observer.error);\n if (errorMethod) errorMethod.call(observer, value);\n else hostReportErrors(value);\n } catch (err) {\n hostReportErrors(err);\n } cleanupSubscription(subscriptionState);\n }\n },\n complete: function complete() {\n var subscription = getInternalState(this).subscription;\n var subscriptionState = getInternalState(subscription);\n if (!subscriptionClosed(subscriptionState)) {\n var observer = subscriptionState.observer;\n close(subscription, subscriptionState);\n try {\n var completeMethod = getMethod(observer.complete);\n if (completeMethod) completeMethod.call(observer);\n } catch (error) {\n hostReportErrors(error);\n } cleanupSubscription(subscriptionState);\n }\n }\n});\n\nif (DESCRIPTORS) defineProperty(SubscriptionObserver.prototype, 'closed', {\n configurable: true,\n get: function () {\n return subscriptionClosed(getInternalState(getInternalState(this).subscription));\n }\n});\n\nvar $Observable = function Observable(subscriber) {\n anInstance(this, $Observable, 'Observable');\n setInternalState(this, { subscriber: aFunction(subscriber) });\n};\n\nredefineAll($Observable.prototype, {\n subscribe: function subscribe(observer) {\n var length = arguments.length;\n return new Subscription(typeof observer === 'function' ? {\n next: observer,\n error: length > 1 ? arguments[1] : undefined,\n complete: length > 2 ? arguments[2] : undefined\n } : isObject(observer) ? observer : {}, getInternalState(this).subscriber);\n }\n});\n\nredefineAll($Observable, {\n from: function from(x) {\n var C = typeof this === 'function' ? this : $Observable;\n var observableMethod = getMethod(anObject(x)[OBSERVABLE]);\n if (observableMethod) {\n var observable = anObject(observableMethod.call(x));\n return observable.constructor === C ? observable : new C(function (observer) {\n return observable.subscribe(observer);\n });\n }\n var iterator = getIterator(x);\n return new C(function (observer) {\n iterate(iterator, function (it) {\n observer.next(it);\n if (observer.closed) return iterate.stop();\n }, undefined, false, true);\n observer.complete();\n });\n },\n of: function of() {\n var C = typeof this === 'function' ? this : $Observable;\n var length = arguments.length;\n var items = new Array(length);\n var index = 0;\n while (index < length) items[index] = arguments[index++];\n return new C(function (observer) {\n for (var i = 0; i < length; i++) {\n observer.next(items[i]);\n if (observer.closed) return;\n } observer.complete();\n });\n }\n});\n\ncreateNonEnumerableProperty($Observable.prototype, OBSERVABLE, function () { return this; });\n\n$({ global: true }, {\n Observable: $Observable\n});\n\nsetSpecies('Observable');\n","// TODO: Remove from `core-js@4`\nrequire('./es.promise.all-settled.js');\n","'use strict';\nvar $ = require('../internals/export');\nvar aFunction = require('../internals/a-function');\nvar getBuiltIn = require('../internals/get-built-in');\nvar newPromiseCapabilityModule = require('../internals/new-promise-capability');\nvar perform = require('../internals/perform');\nvar iterate = require('../internals/iterate');\n\nvar PROMISE_ANY_ERROR = 'No one promise resolved';\n\n// `Promise.any` method\n// https://github.com/tc39/proposal-promise-any\n$({ target: 'Promise', stat: true }, {\n any: function any(iterable) {\n var C = this;\n var capability = newPromiseCapabilityModule.f(C);\n var resolve = capability.resolve;\n var reject = capability.reject;\n var result = perform(function () {\n var promiseResolve = aFunction(C.resolve);\n var errors = [];\n var counter = 0;\n var remaining = 1;\n var alreadyResolved = false;\n iterate(iterable, function (promise) {\n var index = counter++;\n var alreadyRejected = false;\n errors.push(undefined);\n remaining++;\n promiseResolve.call(C, promise).then(function (value) {\n if (alreadyRejected || alreadyResolved) return;\n alreadyResolved = true;\n resolve(value);\n }, function (e) {\n if (alreadyRejected || alreadyResolved) return;\n alreadyRejected = true;\n errors[index] = e;\n --remaining || reject(new (getBuiltIn('AggregateError'))(errors, PROMISE_ANY_ERROR));\n });\n });\n --remaining || reject(new (getBuiltIn('AggregateError'))(errors, PROMISE_ANY_ERROR));\n });\n if (result.error) reject(result.value);\n return capability.promise;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar newPromiseCapabilityModule = require('../internals/new-promise-capability');\nvar perform = require('../internals/perform');\n\n// `Promise.try` method\n// https://github.com/tc39/proposal-promise-try\n$({ target: 'Promise', stat: true }, {\n 'try': function (callbackfn) {\n var promiseCapability = newPromiseCapabilityModule.f(this);\n var result = perform(callbackfn);\n (result.error ? promiseCapability.reject : promiseCapability.resolve)(result.value);\n return promiseCapability.promise;\n }\n});\n","var $ = require('../internals/export');\nvar ReflectMetadataModule = require('../internals/reflect-metadata');\nvar anObject = require('../internals/an-object');\n\nvar toMetadataKey = ReflectMetadataModule.toKey;\nvar ordinaryDefineOwnMetadata = ReflectMetadataModule.set;\n\n// `Reflect.defineMetadata` method\n// https://github.com/rbuckton/reflect-metadata\n$({ target: 'Reflect', stat: true }, {\n defineMetadata: function defineMetadata(metadataKey, metadataValue, target /* , targetKey */) {\n var targetKey = arguments.length < 4 ? undefined : toMetadataKey(arguments[3]);\n ordinaryDefineOwnMetadata(metadataKey, metadataValue, anObject(target), targetKey);\n }\n});\n","var $ = require('../internals/export');\nvar ReflectMetadataModule = require('../internals/reflect-metadata');\nvar anObject = require('../internals/an-object');\n\nvar toMetadataKey = ReflectMetadataModule.toKey;\nvar getOrCreateMetadataMap = ReflectMetadataModule.getMap;\nvar store = ReflectMetadataModule.store;\n\n// `Reflect.deleteMetadata` method\n// https://github.com/rbuckton/reflect-metadata\n$({ target: 'Reflect', stat: true }, {\n deleteMetadata: function deleteMetadata(metadataKey, target /* , targetKey */) {\n var targetKey = arguments.length < 3 ? undefined : toMetadataKey(arguments[2]);\n var metadataMap = getOrCreateMetadataMap(anObject(target), targetKey, false);\n if (metadataMap === undefined || !metadataMap['delete'](metadataKey)) return false;\n if (metadataMap.size) return true;\n var targetMetadata = store.get(target);\n targetMetadata['delete'](targetKey);\n return !!targetMetadata.size || store['delete'](target);\n }\n});\n","var $ = require('../internals/export');\n// TODO: in core-js@4, move /modules/ dependencies to public entries for better optimization by tools like `preset-env`\nvar Set = require('../modules/es.set');\nvar ReflectMetadataModule = require('../internals/reflect-metadata');\nvar anObject = require('../internals/an-object');\nvar getPrototypeOf = require('../internals/object-get-prototype-of');\nvar iterate = require('../internals/iterate');\n\nvar ordinaryOwnMetadataKeys = ReflectMetadataModule.keys;\nvar toMetadataKey = ReflectMetadataModule.toKey;\n\nvar from = function (iter) {\n var result = [];\n iterate(iter, result.push, result);\n return result;\n};\n\nvar ordinaryMetadataKeys = function (O, P) {\n var oKeys = ordinaryOwnMetadataKeys(O, P);\n var parent = getPrototypeOf(O);\n if (parent === null) return oKeys;\n var pKeys = ordinaryMetadataKeys(parent, P);\n return pKeys.length ? oKeys.length ? from(new Set(oKeys.concat(pKeys))) : pKeys : oKeys;\n};\n\n// `Reflect.getMetadataKeys` method\n// https://github.com/rbuckton/reflect-metadata\n$({ target: 'Reflect', stat: true }, {\n getMetadataKeys: function getMetadataKeys(target /* , targetKey */) {\n var targetKey = arguments.length < 2 ? undefined : toMetadataKey(arguments[1]);\n return ordinaryMetadataKeys(anObject(target), targetKey);\n }\n});\n","var $ = require('../internals/export');\nvar ReflectMetadataModule = require('../internals/reflect-metadata');\nvar anObject = require('../internals/an-object');\nvar getPrototypeOf = require('../internals/object-get-prototype-of');\n\nvar ordinaryHasOwnMetadata = ReflectMetadataModule.has;\nvar ordinaryGetOwnMetadata = ReflectMetadataModule.get;\nvar toMetadataKey = ReflectMetadataModule.toKey;\n\nvar ordinaryGetMetadata = function (MetadataKey, O, P) {\n var hasOwn = ordinaryHasOwnMetadata(MetadataKey, O, P);\n if (hasOwn) return ordinaryGetOwnMetadata(MetadataKey, O, P);\n var parent = getPrototypeOf(O);\n return parent !== null ? ordinaryGetMetadata(MetadataKey, parent, P) : undefined;\n};\n\n// `Reflect.getMetadata` method\n// https://github.com/rbuckton/reflect-metadata\n$({ target: 'Reflect', stat: true }, {\n getMetadata: function getMetadata(metadataKey, target /* , targetKey */) {\n var targetKey = arguments.length < 3 ? undefined : toMetadataKey(arguments[2]);\n return ordinaryGetMetadata(metadataKey, anObject(target), targetKey);\n }\n});\n","var $ = require('../internals/export');\nvar ReflectMetadataModule = require('../internals/reflect-metadata');\nvar anObject = require('../internals/an-object');\n\nvar ordinaryOwnMetadataKeys = ReflectMetadataModule.keys;\nvar toMetadataKey = ReflectMetadataModule.toKey;\n\n// `Reflect.getOwnMetadataKeys` method\n// https://github.com/rbuckton/reflect-metadata\n$({ target: 'Reflect', stat: true }, {\n getOwnMetadataKeys: function getOwnMetadataKeys(target /* , targetKey */) {\n var targetKey = arguments.length < 2 ? undefined : toMetadataKey(arguments[1]);\n return ordinaryOwnMetadataKeys(anObject(target), targetKey);\n }\n});\n","var $ = require('../internals/export');\nvar ReflectMetadataModule = require('../internals/reflect-metadata');\nvar anObject = require('../internals/an-object');\n\nvar ordinaryGetOwnMetadata = ReflectMetadataModule.get;\nvar toMetadataKey = ReflectMetadataModule.toKey;\n\n// `Reflect.getOwnMetadata` method\n// https://github.com/rbuckton/reflect-metadata\n$({ target: 'Reflect', stat: true }, {\n getOwnMetadata: function getOwnMetadata(metadataKey, target /* , targetKey */) {\n var targetKey = arguments.length < 3 ? undefined : toMetadataKey(arguments[2]);\n return ordinaryGetOwnMetadata(metadataKey, anObject(target), targetKey);\n }\n});\n","var $ = require('../internals/export');\nvar ReflectMetadataModule = require('../internals/reflect-metadata');\nvar anObject = require('../internals/an-object');\nvar getPrototypeOf = require('../internals/object-get-prototype-of');\n\nvar ordinaryHasOwnMetadata = ReflectMetadataModule.has;\nvar toMetadataKey = ReflectMetadataModule.toKey;\n\nvar ordinaryHasMetadata = function (MetadataKey, O, P) {\n var hasOwn = ordinaryHasOwnMetadata(MetadataKey, O, P);\n if (hasOwn) return true;\n var parent = getPrototypeOf(O);\n return parent !== null ? ordinaryHasMetadata(MetadataKey, parent, P) : false;\n};\n\n// `Reflect.hasMetadata` method\n// https://github.com/rbuckton/reflect-metadata\n$({ target: 'Reflect', stat: true }, {\n hasMetadata: function hasMetadata(metadataKey, target /* , targetKey */) {\n var targetKey = arguments.length < 3 ? undefined : toMetadataKey(arguments[2]);\n return ordinaryHasMetadata(metadataKey, anObject(target), targetKey);\n }\n});\n","var $ = require('../internals/export');\nvar ReflectMetadataModule = require('../internals/reflect-metadata');\nvar anObject = require('../internals/an-object');\n\nvar ordinaryHasOwnMetadata = ReflectMetadataModule.has;\nvar toMetadataKey = ReflectMetadataModule.toKey;\n\n// `Reflect.hasOwnMetadata` method\n// https://github.com/rbuckton/reflect-metadata\n$({ target: 'Reflect', stat: true }, {\n hasOwnMetadata: function hasOwnMetadata(metadataKey, target /* , targetKey */) {\n var targetKey = arguments.length < 3 ? undefined : toMetadataKey(arguments[2]);\n return ordinaryHasOwnMetadata(metadataKey, anObject(target), targetKey);\n }\n});\n","var $ = require('../internals/export');\nvar ReflectMetadataModule = require('../internals/reflect-metadata');\nvar anObject = require('../internals/an-object');\n\nvar toMetadataKey = ReflectMetadataModule.toKey;\nvar ordinaryDefineOwnMetadata = ReflectMetadataModule.set;\n\n// `Reflect.metadata` method\n// https://github.com/rbuckton/reflect-metadata\n$({ target: 'Reflect', stat: true }, {\n metadata: function metadata(metadataKey, metadataValue) {\n return function decorator(target, key) {\n ordinaryDefineOwnMetadata(metadataKey, metadataValue, anObject(target), toMetadataKey(key));\n };\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar collectionAddAll = require('../internals/collection-add-all');\n\n// `Set.prototype.addAll` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Set', proto: true, real: true, forced: IS_PURE }, {\n addAll: function addAll(/* ...elements */) {\n return collectionAddAll.apply(this, arguments);\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar collectionDeleteAll = require('../internals/collection-delete-all');\n\n// `Set.prototype.deleteAll` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Set', proto: true, real: true, forced: IS_PURE }, {\n deleteAll: function deleteAll(/* ...elements */) {\n return collectionDeleteAll.apply(this, arguments);\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar getBuiltIn = require('../internals/get-built-in');\nvar anObject = require('../internals/an-object');\nvar aFunction = require('../internals/a-function');\nvar speciesConstructor = require('../internals/species-constructor');\nvar iterate = require('../internals/iterate');\n\n// `Set.prototype.difference` method\n// https://github.com/tc39/proposal-set-methods\n$({ target: 'Set', proto: true, real: true, forced: IS_PURE }, {\n difference: function difference(iterable) {\n var set = anObject(this);\n var newSet = new (speciesConstructor(set, getBuiltIn('Set')))(set);\n var remover = aFunction(newSet['delete']);\n iterate(iterable, function (value) {\n remover.call(newSet, value);\n });\n return newSet;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar anObject = require('../internals/an-object');\nvar bind = require('../internals/function-bind-context');\nvar getSetIterator = require('../internals/get-set-iterator');\nvar iterate = require('../internals/iterate');\n\n// `Set.prototype.every` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Set', proto: true, real: true, forced: IS_PURE }, {\n every: function every(callbackfn /* , thisArg */) {\n var set = anObject(this);\n var iterator = getSetIterator(set);\n var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);\n return !iterate(iterator, function (value) {\n if (!boundFunction(value, value, set)) return iterate.stop();\n }, undefined, false, true).stopped;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar getBuiltIn = require('../internals/get-built-in');\nvar anObject = require('../internals/an-object');\nvar aFunction = require('../internals/a-function');\nvar bind = require('../internals/function-bind-context');\nvar speciesConstructor = require('../internals/species-constructor');\nvar getSetIterator = require('../internals/get-set-iterator');\nvar iterate = require('../internals/iterate');\n\n// `Set.prototype.filter` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Set', proto: true, real: true, forced: IS_PURE }, {\n filter: function filter(callbackfn /* , thisArg */) {\n var set = anObject(this);\n var iterator = getSetIterator(set);\n var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);\n var newSet = new (speciesConstructor(set, getBuiltIn('Set')))();\n var adder = aFunction(newSet.add);\n iterate(iterator, function (value) {\n if (boundFunction(value, value, set)) adder.call(newSet, value);\n }, undefined, false, true);\n return newSet;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar anObject = require('../internals/an-object');\nvar bind = require('../internals/function-bind-context');\nvar getSetIterator = require('../internals/get-set-iterator');\nvar iterate = require('../internals/iterate');\n\n// `Set.prototype.find` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Set', proto: true, real: true, forced: IS_PURE }, {\n find: function find(callbackfn /* , thisArg */) {\n var set = anObject(this);\n var iterator = getSetIterator(set);\n var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);\n return iterate(iterator, function (value) {\n if (boundFunction(value, value, set)) return iterate.stop(value);\n }, undefined, false, true).result;\n }\n});\n","var $ = require('../internals/export');\nvar from = require('../internals/collection-from');\n\n// `Set.from` method\n// https://tc39.github.io/proposal-setmap-offrom/#sec-set.from\n$({ target: 'Set', stat: true }, {\n from: from\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar getBuiltIn = require('../internals/get-built-in');\nvar anObject = require('../internals/an-object');\nvar aFunction = require('../internals/a-function');\nvar speciesConstructor = require('../internals/species-constructor');\nvar iterate = require('../internals/iterate');\n\n// `Set.prototype.intersection` method\n// https://github.com/tc39/proposal-set-methods\n$({ target: 'Set', proto: true, real: true, forced: IS_PURE }, {\n intersection: function intersection(iterable) {\n var set = anObject(this);\n var newSet = new (speciesConstructor(set, getBuiltIn('Set')))();\n var hasCheck = aFunction(set.has);\n var adder = aFunction(newSet.add);\n iterate(iterable, function (value) {\n if (hasCheck.call(set, value)) adder.call(newSet, value);\n });\n return newSet;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar anObject = require('../internals/an-object');\nvar aFunction = require('../internals/a-function');\nvar iterate = require('../internals/iterate');\n\n// `Set.prototype.isDisjointFrom` method\n// https://tc39.github.io/proposal-set-methods/#Set.prototype.isDisjointFrom\n$({ target: 'Set', proto: true, real: true, forced: IS_PURE }, {\n isDisjointFrom: function isDisjointFrom(iterable) {\n var set = anObject(this);\n var hasCheck = aFunction(set.has);\n return !iterate(iterable, function (value) {\n if (hasCheck.call(set, value) === true) return iterate.stop();\n }).stopped;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar getBuiltIn = require('../internals/get-built-in');\nvar anObject = require('../internals/an-object');\nvar aFunction = require('../internals/a-function');\nvar getIterator = require('../internals/get-iterator');\nvar iterate = require('../internals/iterate');\n\n// `Set.prototype.isSubsetOf` method\n// https://tc39.github.io/proposal-set-methods/#Set.prototype.isSubsetOf\n$({ target: 'Set', proto: true, real: true, forced: IS_PURE }, {\n isSubsetOf: function isSubsetOf(iterable) {\n var iterator = getIterator(this);\n var otherSet = anObject(iterable);\n var hasCheck = otherSet.has;\n if (typeof hasCheck != 'function') {\n otherSet = new (getBuiltIn('Set'))(iterable);\n hasCheck = aFunction(otherSet.has);\n }\n return !iterate(iterator, function (value) {\n if (hasCheck.call(otherSet, value) === false) return iterate.stop();\n }, undefined, false, true).stopped;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar anObject = require('../internals/an-object');\nvar aFunction = require('../internals/a-function');\nvar iterate = require('../internals/iterate');\n\n// `Set.prototype.isSupersetOf` method\n// https://tc39.github.io/proposal-set-methods/#Set.prototype.isSupersetOf\n$({ target: 'Set', proto: true, real: true, forced: IS_PURE }, {\n isSupersetOf: function isSupersetOf(iterable) {\n var set = anObject(this);\n var hasCheck = aFunction(set.has);\n return !iterate(iterable, function (value) {\n if (hasCheck.call(set, value) === false) return iterate.stop();\n }).stopped;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar anObject = require('../internals/an-object');\nvar getSetIterator = require('../internals/get-set-iterator');\nvar iterate = require('../internals/iterate');\n\n// `Set.prototype.join` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Set', proto: true, real: true, forced: IS_PURE }, {\n join: function join(separator) {\n var set = anObject(this);\n var iterator = getSetIterator(set);\n var sep = separator === undefined ? ',' : String(separator);\n var result = [];\n iterate(iterator, result.push, result, false, true);\n return result.join(sep);\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar getBuiltIn = require('../internals/get-built-in');\nvar anObject = require('../internals/an-object');\nvar aFunction = require('../internals/a-function');\nvar bind = require('../internals/function-bind-context');\nvar speciesConstructor = require('../internals/species-constructor');\nvar getSetIterator = require('../internals/get-set-iterator');\nvar iterate = require('../internals/iterate');\n\n// `Set.prototype.map` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Set', proto: true, real: true, forced: IS_PURE }, {\n map: function map(callbackfn /* , thisArg */) {\n var set = anObject(this);\n var iterator = getSetIterator(set);\n var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);\n var newSet = new (speciesConstructor(set, getBuiltIn('Set')))();\n var adder = aFunction(newSet.add);\n iterate(iterator, function (value) {\n adder.call(newSet, boundFunction(value, value, set));\n }, undefined, false, true);\n return newSet;\n }\n});\n","var $ = require('../internals/export');\nvar of = require('../internals/collection-of');\n\n// `Set.of` method\n// https://tc39.github.io/proposal-setmap-offrom/#sec-set.of\n$({ target: 'Set', stat: true }, {\n of: of\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar anObject = require('../internals/an-object');\nvar aFunction = require('../internals/a-function');\nvar getSetIterator = require('../internals/get-set-iterator');\nvar iterate = require('../internals/iterate');\n\n// `Set.prototype.reduce` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Set', proto: true, real: true, forced: IS_PURE }, {\n reduce: function reduce(callbackfn /* , initialValue */) {\n var set = anObject(this);\n var iterator = getSetIterator(set);\n var noInitial = arguments.length < 2;\n var accumulator = noInitial ? undefined : arguments[1];\n aFunction(callbackfn);\n iterate(iterator, function (value) {\n if (noInitial) {\n noInitial = false;\n accumulator = value;\n } else {\n accumulator = callbackfn(accumulator, value, value, set);\n }\n }, undefined, false, true);\n if (noInitial) throw TypeError('Reduce of empty set with no initial value');\n return accumulator;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar anObject = require('../internals/an-object');\nvar bind = require('../internals/function-bind-context');\nvar getSetIterator = require('../internals/get-set-iterator');\nvar iterate = require('../internals/iterate');\n\n// `Set.prototype.some` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'Set', proto: true, real: true, forced: IS_PURE }, {\n some: function some(callbackfn /* , thisArg */) {\n var set = anObject(this);\n var iterator = getSetIterator(set);\n var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);\n return iterate(iterator, function (value) {\n if (boundFunction(value, value, set)) return iterate.stop();\n }, undefined, false, true).stopped;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar getBuiltIn = require('../internals/get-built-in');\nvar anObject = require('../internals/an-object');\nvar aFunction = require('../internals/a-function');\nvar speciesConstructor = require('../internals/species-constructor');\nvar iterate = require('../internals/iterate');\n\n// `Set.prototype.symmetricDifference` method\n// https://github.com/tc39/proposal-set-methods\n$({ target: 'Set', proto: true, real: true, forced: IS_PURE }, {\n symmetricDifference: function symmetricDifference(iterable) {\n var set = anObject(this);\n var newSet = new (speciesConstructor(set, getBuiltIn('Set')))(set);\n var remover = aFunction(newSet['delete']);\n var adder = aFunction(newSet.add);\n iterate(iterable, function (value) {\n remover.call(newSet, value) || adder.call(newSet, value);\n });\n return newSet;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar getBuiltIn = require('../internals/get-built-in');\nvar anObject = require('../internals/an-object');\nvar aFunction = require('../internals/a-function');\nvar speciesConstructor = require('../internals/species-constructor');\nvar iterate = require('../internals/iterate');\n\n// `Set.prototype.union` method\n// https://github.com/tc39/proposal-set-methods\n$({ target: 'Set', proto: true, real: true, forced: IS_PURE }, {\n union: function union(iterable) {\n var set = anObject(this);\n var newSet = new (speciesConstructor(set, getBuiltIn('Set')))(set);\n iterate(iterable, aFunction(newSet.add), newSet);\n return newSet;\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar charAt = require('../internals/string-multibyte').charAt;\n\n// `String.prototype.at` method\n// https://github.com/mathiasbynens/String.prototype.at\n$({ target: 'String', proto: true }, {\n at: function at(pos) {\n return charAt(this, pos);\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar createIteratorConstructor = require('../internals/create-iterator-constructor');\nvar requireObjectCoercible = require('../internals/require-object-coercible');\nvar InternalStateModule = require('../internals/internal-state');\nvar StringMultibyteModule = require('../internals/string-multibyte');\n\nvar codeAt = StringMultibyteModule.codeAt;\nvar charAt = StringMultibyteModule.charAt;\nvar STRING_ITERATOR = 'String Iterator';\nvar setInternalState = InternalStateModule.set;\nvar getInternalState = InternalStateModule.getterFor(STRING_ITERATOR);\n\n// TODO: unify with String#@@iterator\nvar $StringIterator = createIteratorConstructor(function StringIterator(string) {\n setInternalState(this, {\n type: STRING_ITERATOR,\n string: string,\n index: 0\n });\n}, 'String', function next() {\n var state = getInternalState(this);\n var string = state.string;\n var index = state.index;\n var point;\n if (index >= string.length) return { value: undefined, done: true };\n point = charAt(string, index);\n state.index += point.length;\n return { value: { codePoint: codeAt(point, 0), position: index }, done: false };\n});\n\n// `String.prototype.codePoints` method\n// https://github.com/tc39/proposal-string-prototype-codepoints\n$({ target: 'String', proto: true }, {\n codePoints: function codePoints() {\n return new $StringIterator(String(requireObjectCoercible(this)));\n }\n});\n","// TODO: Remove from `core-js@4`\nrequire('./es.string.match-all');\n","'use strict';\nvar $ = require('../internals/export');\nvar requireObjectCoercible = require('../internals/require-object-coercible');\nvar isRegExp = require('../internals/is-regexp');\nvar getRegExpFlags = require('../internals/regexp-flags');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar IS_PURE = require('../internals/is-pure');\n\nvar REPLACE = wellKnownSymbol('replace');\nvar RegExpPrototype = RegExp.prototype;\n\n// `String.prototype.replaceAll` method\n// https://github.com/tc39/proposal-string-replace-all\n$({ target: 'String', proto: true }, {\n replaceAll: function replaceAll(searchValue, replaceValue) {\n var O = requireObjectCoercible(this);\n var IS_REG_EXP, flags, replacer, string, searchString, template, result, position, index;\n if (searchValue != null) {\n IS_REG_EXP = isRegExp(searchValue);\n if (IS_REG_EXP) {\n flags = String(requireObjectCoercible('flags' in RegExpPrototype\n ? searchValue.flags\n : getRegExpFlags.call(searchValue)\n ));\n if (!~flags.indexOf('g')) throw TypeError('`.replaceAll` does not allow non-global regexes');\n }\n replacer = searchValue[REPLACE];\n if (replacer !== undefined) {\n return replacer.call(searchValue, O, replaceValue);\n } else if (IS_PURE && IS_REG_EXP) {\n return String(O).replace(searchValue, replaceValue);\n }\n }\n string = String(O);\n searchString = String(searchValue);\n if (searchString === '') return replaceAll.call(string, /(?:)/g, replaceValue);\n template = string.split(searchString);\n if (typeof replaceValue !== 'function') {\n return template.join(String(replaceValue));\n }\n result = template[0];\n position = result.length;\n for (index = 1; index < template.length; index++) {\n result += String(replaceValue(searchString, position, string));\n position += searchString.length + template[index].length;\n result += template[index];\n }\n return result;\n }\n});\n","var defineWellKnownSymbol = require('../internals/define-well-known-symbol');\n\n// `Symbol.asyncDispose` well-known symbol\n// https://github.com/tc39/proposal-using-statement\ndefineWellKnownSymbol('asyncDispose');\n","var defineWellKnownSymbol = require('../internals/define-well-known-symbol');\n\n// `Symbol.dispose` well-known symbol\n// https://github.com/tc39/proposal-using-statement\ndefineWellKnownSymbol('dispose');\n","var defineWellKnownSymbol = require('../internals/define-well-known-symbol');\n\n// `Symbol.observable` well-known symbol\n// https://github.com/tc39/proposal-observable\ndefineWellKnownSymbol('observable');\n","var defineWellKnownSymbol = require('../internals/define-well-known-symbol');\n\n// `Symbol.patternMatch` well-known symbol\n// https://github.com/tc39/proposal-pattern-matching\ndefineWellKnownSymbol('patternMatch');\n","// TODO: remove from `core-js@4`\nvar defineWellKnownSymbol = require('../internals/define-well-known-symbol');\n\ndefineWellKnownSymbol('replaceAll');\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar collectionDeleteAll = require('../internals/collection-delete-all');\n\n// `WeakMap.prototype.deleteAll` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'WeakMap', proto: true, real: true, forced: IS_PURE }, {\n deleteAll: function deleteAll(/* ...elements */) {\n return collectionDeleteAll.apply(this, arguments);\n }\n});\n","var $ = require('../internals/export');\nvar from = require('../internals/collection-from');\n\n// `WeakMap.from` method\n// https://tc39.github.io/proposal-setmap-offrom/#sec-weakmap.from\n$({ target: 'WeakMap', stat: true }, {\n from: from\n});\n","var $ = require('../internals/export');\nvar of = require('../internals/collection-of');\n\n// `WeakMap.of` method\n// https://tc39.github.io/proposal-setmap-offrom/#sec-weakmap.of\n$({ target: 'WeakMap', stat: true }, {\n of: of\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar $upsert = require('../internals/map-upsert');\n\n// `WeakMap.prototype.upsert` method\n// https://github.com/thumbsupep/proposal-upsert\n$({ target: 'WeakMap', proto: true, real: true, forced: IS_PURE }, {\n upsert: $upsert\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar collectionAddAll = require('../internals/collection-add-all');\n\n// `WeakSet.prototype.addAll` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'WeakSet', proto: true, real: true, forced: IS_PURE }, {\n addAll: function addAll(/* ...elements */) {\n return collectionAddAll.apply(this, arguments);\n }\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar collectionDeleteAll = require('../internals/collection-delete-all');\n\n// `WeakSet.prototype.deleteAll` method\n// https://github.com/tc39/proposal-collection-methods\n$({ target: 'WeakSet', proto: true, real: true, forced: IS_PURE }, {\n deleteAll: function deleteAll(/* ...elements */) {\n return collectionDeleteAll.apply(this, arguments);\n }\n});\n","var $ = require('../internals/export');\nvar from = require('../internals/collection-from');\n\n// `WeakSet.from` method\n// https://tc39.github.io/proposal-setmap-offrom/#sec-weakset.from\n$({ target: 'WeakSet', stat: true }, {\n from: from\n});\n","var $ = require('../internals/export');\nvar of = require('../internals/collection-of');\n\n// `WeakSet.of` method\n// https://tc39.github.io/proposal-setmap-offrom/#sec-weakset.of\n$({ target: 'WeakSet', stat: true }, {\n of: of\n});\n","var global = require('../internals/global');\nvar DOMIterables = require('../internals/dom-iterables');\nvar forEach = require('../internals/array-for-each');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\n\nfor (var COLLECTION_NAME in DOMIterables) {\n var Collection = global[COLLECTION_NAME];\n var CollectionPrototype = Collection && Collection.prototype;\n // some Chrome versions have non-configurable methods on DOMTokenList\n if (CollectionPrototype && CollectionPrototype.forEach !== forEach) try {\n createNonEnumerableProperty(CollectionPrototype, 'forEach', forEach);\n } catch (error) {\n CollectionPrototype.forEach = forEach;\n }\n}\n","var global = require('../internals/global');\nvar DOMIterables = require('../internals/dom-iterables');\nvar ArrayIteratorMethods = require('../modules/es.array.iterator');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar ITERATOR = wellKnownSymbol('iterator');\nvar TO_STRING_TAG = wellKnownSymbol('toStringTag');\nvar ArrayValues = ArrayIteratorMethods.values;\n\nfor (var COLLECTION_NAME in DOMIterables) {\n var Collection = global[COLLECTION_NAME];\n var CollectionPrototype = Collection && Collection.prototype;\n if (CollectionPrototype) {\n // some Chrome versions have non-configurable methods on DOMTokenList\n if (CollectionPrototype[ITERATOR] !== ArrayValues) try {\n createNonEnumerableProperty(CollectionPrototype, ITERATOR, ArrayValues);\n } catch (error) {\n CollectionPrototype[ITERATOR] = ArrayValues;\n }\n if (!CollectionPrototype[TO_STRING_TAG]) {\n createNonEnumerableProperty(CollectionPrototype, TO_STRING_TAG, COLLECTION_NAME);\n }\n if (DOMIterables[COLLECTION_NAME]) for (var METHOD_NAME in ArrayIteratorMethods) {\n // some Chrome versions have non-configurable methods on DOMTokenList\n if (CollectionPrototype[METHOD_NAME] !== ArrayIteratorMethods[METHOD_NAME]) try {\n createNonEnumerableProperty(CollectionPrototype, METHOD_NAME, ArrayIteratorMethods[METHOD_NAME]);\n } catch (error) {\n CollectionPrototype[METHOD_NAME] = ArrayIteratorMethods[METHOD_NAME];\n }\n }\n }\n}\n","var $ = require('../internals/export');\nvar global = require('../internals/global');\nvar task = require('../internals/task');\n\nvar FORCED = !global.setImmediate || !global.clearImmediate;\n\n// http://w3c.github.io/setImmediate/\n$({ global: true, bind: true, enumerable: true, forced: FORCED }, {\n // `setImmediate` method\n // http://w3c.github.io/setImmediate/#si-setImmediate\n setImmediate: task.set,\n // `clearImmediate` method\n // http://w3c.github.io/setImmediate/#si-clearImmediate\n clearImmediate: task.clear\n});\n","var $ = require('../internals/export');\nvar global = require('../internals/global');\nvar microtask = require('../internals/microtask');\nvar classof = require('../internals/classof-raw');\n\nvar process = global.process;\nvar isNode = classof(process) == 'process';\n\n// `queueMicrotask` method\n// https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-queuemicrotask\n$({ global: true, enumerable: true, noTargetGet: true }, {\n queueMicrotask: function queueMicrotask(fn) {\n var domain = isNode && process.domain;\n microtask(domain ? domain.bind(fn) : fn);\n }\n});\n","var $ = require('../internals/export');\nvar global = require('../internals/global');\nvar userAgent = require('../internals/engine-user-agent');\n\nvar slice = [].slice;\nvar MSIE = /MSIE .\\./.test(userAgent); // <- dirty ie9- check\n\nvar wrap = function (scheduler) {\n return function (handler, timeout /* , ...arguments */) {\n var boundArgs = arguments.length > 2;\n var args = boundArgs ? slice.call(arguments, 2) : undefined;\n return scheduler(boundArgs ? function () {\n // eslint-disable-next-line no-new-func\n (typeof handler == 'function' ? handler : Function(handler)).apply(this, args);\n } : handler, timeout);\n };\n};\n\n// ie9- setTimeout & setInterval additional parameters fix\n// https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#timers\n$({ global: true, bind: true, forced: MSIE }, {\n // `setTimeout` method\n // https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-settimeout\n setTimeout: wrap(global.setTimeout),\n // `setInterval` method\n // https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-setinterval\n setInterval: wrap(global.setInterval)\n});\n","'use strict';\n// TODO: in core-js@4, move /modules/ dependencies to public entries for better optimization by tools like `preset-env`\nrequire('../modules/es.array.iterator');\nvar $ = require('../internals/export');\nvar getBuiltIn = require('../internals/get-built-in');\nvar USE_NATIVE_URL = require('../internals/native-url');\nvar redefine = require('../internals/redefine');\nvar redefineAll = require('../internals/redefine-all');\nvar setToStringTag = require('../internals/set-to-string-tag');\nvar createIteratorConstructor = require('../internals/create-iterator-constructor');\nvar InternalStateModule = require('../internals/internal-state');\nvar anInstance = require('../internals/an-instance');\nvar hasOwn = require('../internals/has');\nvar bind = require('../internals/function-bind-context');\nvar classof = require('../internals/classof');\nvar anObject = require('../internals/an-object');\nvar isObject = require('../internals/is-object');\nvar create = require('../internals/object-create');\nvar createPropertyDescriptor = require('../internals/create-property-descriptor');\nvar getIterator = require('../internals/get-iterator');\nvar getIteratorMethod = require('../internals/get-iterator-method');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar $fetch = getBuiltIn('fetch');\nvar Headers = getBuiltIn('Headers');\nvar ITERATOR = wellKnownSymbol('iterator');\nvar URL_SEARCH_PARAMS = 'URLSearchParams';\nvar URL_SEARCH_PARAMS_ITERATOR = URL_SEARCH_PARAMS + 'Iterator';\nvar setInternalState = InternalStateModule.set;\nvar getInternalParamsState = InternalStateModule.getterFor(URL_SEARCH_PARAMS);\nvar getInternalIteratorState = InternalStateModule.getterFor(URL_SEARCH_PARAMS_ITERATOR);\n\nvar plus = /\\+/g;\nvar sequences = Array(4);\n\nvar percentSequence = function (bytes) {\n return sequences[bytes - 1] || (sequences[bytes - 1] = RegExp('((?:%[\\\\da-f]{2}){' + bytes + '})', 'gi'));\n};\n\nvar percentDecode = function (sequence) {\n try {\n return decodeURIComponent(sequence);\n } catch (error) {\n return sequence;\n }\n};\n\nvar deserialize = function (it) {\n var result = it.replace(plus, ' ');\n var bytes = 4;\n try {\n return decodeURIComponent(result);\n } catch (error) {\n while (bytes) {\n result = result.replace(percentSequence(bytes--), percentDecode);\n }\n return result;\n }\n};\n\nvar find = /[!'()~]|%20/g;\n\nvar replace = {\n '!': '%21',\n \"'\": '%27',\n '(': '%28',\n ')': '%29',\n '~': '%7E',\n '%20': '+'\n};\n\nvar replacer = function (match) {\n return replace[match];\n};\n\nvar serialize = function (it) {\n return encodeURIComponent(it).replace(find, replacer);\n};\n\nvar parseSearchParams = function (result, query) {\n if (query) {\n var attributes = query.split('&');\n var index = 0;\n var attribute, entry;\n while (index < attributes.length) {\n attribute = attributes[index++];\n if (attribute.length) {\n entry = attribute.split('=');\n result.push({\n key: deserialize(entry.shift()),\n value: deserialize(entry.join('='))\n });\n }\n }\n }\n};\n\nvar updateSearchParams = function (query) {\n this.entries.length = 0;\n parseSearchParams(this.entries, query);\n};\n\nvar validateArgumentsLength = function (passed, required) {\n if (passed < required) throw TypeError('Not enough arguments');\n};\n\nvar URLSearchParamsIterator = createIteratorConstructor(function Iterator(params, kind) {\n setInternalState(this, {\n type: URL_SEARCH_PARAMS_ITERATOR,\n iterator: getIterator(getInternalParamsState(params).entries),\n kind: kind\n });\n}, 'Iterator', function next() {\n var state = getInternalIteratorState(this);\n var kind = state.kind;\n var step = state.iterator.next();\n var entry = step.value;\n if (!step.done) {\n step.value = kind === 'keys' ? entry.key : kind === 'values' ? entry.value : [entry.key, entry.value];\n } return step;\n});\n\n// `URLSearchParams` constructor\n// https://url.spec.whatwg.org/#interface-urlsearchparams\nvar URLSearchParamsConstructor = function URLSearchParams(/* init */) {\n anInstance(this, URLSearchParamsConstructor, URL_SEARCH_PARAMS);\n var init = arguments.length > 0 ? arguments[0] : undefined;\n var that = this;\n var entries = [];\n var iteratorMethod, iterator, next, step, entryIterator, entryNext, first, second, key;\n\n setInternalState(that, {\n type: URL_SEARCH_PARAMS,\n entries: entries,\n updateURL: function () { /* empty */ },\n updateSearchParams: updateSearchParams\n });\n\n if (init !== undefined) {\n if (isObject(init)) {\n iteratorMethod = getIteratorMethod(init);\n if (typeof iteratorMethod === 'function') {\n iterator = iteratorMethod.call(init);\n next = iterator.next;\n while (!(step = next.call(iterator)).done) {\n entryIterator = getIterator(anObject(step.value));\n entryNext = entryIterator.next;\n if (\n (first = entryNext.call(entryIterator)).done ||\n (second = entryNext.call(entryIterator)).done ||\n !entryNext.call(entryIterator).done\n ) throw TypeError('Expected sequence with length 2');\n entries.push({ key: first.value + '', value: second.value + '' });\n }\n } else for (key in init) if (hasOwn(init, key)) entries.push({ key: key, value: init[key] + '' });\n } else {\n parseSearchParams(entries, typeof init === 'string' ? init.charAt(0) === '?' ? init.slice(1) : init : init + '');\n }\n }\n};\n\nvar URLSearchParamsPrototype = URLSearchParamsConstructor.prototype;\n\nredefineAll(URLSearchParamsPrototype, {\n // `URLSearchParams.prototype.appent` method\n // https://url.spec.whatwg.org/#dom-urlsearchparams-append\n append: function append(name, value) {\n validateArgumentsLength(arguments.length, 2);\n var state = getInternalParamsState(this);\n state.entries.push({ key: name + '', value: value + '' });\n state.updateURL();\n },\n // `URLSearchParams.prototype.delete` method\n // https://url.spec.whatwg.org/#dom-urlsearchparams-delete\n 'delete': function (name) {\n validateArgumentsLength(arguments.length, 1);\n var state = getInternalParamsState(this);\n var entries = state.entries;\n var key = name + '';\n var index = 0;\n while (index < entries.length) {\n if (entries[index].key === key) entries.splice(index, 1);\n else index++;\n }\n state.updateURL();\n },\n // `URLSearchParams.prototype.get` method\n // https://url.spec.whatwg.org/#dom-urlsearchparams-get\n get: function get(name) {\n validateArgumentsLength(arguments.length, 1);\n var entries = getInternalParamsState(this).entries;\n var key = name + '';\n var index = 0;\n for (; index < entries.length; index++) {\n if (entries[index].key === key) return entries[index].value;\n }\n return null;\n },\n // `URLSearchParams.prototype.getAll` method\n // https://url.spec.whatwg.org/#dom-urlsearchparams-getall\n getAll: function getAll(name) {\n validateArgumentsLength(arguments.length, 1);\n var entries = getInternalParamsState(this).entries;\n var key = name + '';\n var result = [];\n var index = 0;\n for (; index < entries.length; index++) {\n if (entries[index].key === key) result.push(entries[index].value);\n }\n return result;\n },\n // `URLSearchParams.prototype.has` method\n // https://url.spec.whatwg.org/#dom-urlsearchparams-has\n has: function has(name) {\n validateArgumentsLength(arguments.length, 1);\n var entries = getInternalParamsState(this).entries;\n var key = name + '';\n var index = 0;\n while (index < entries.length) {\n if (entries[index++].key === key) return true;\n }\n return false;\n },\n // `URLSearchParams.prototype.set` method\n // https://url.spec.whatwg.org/#dom-urlsearchparams-set\n set: function set(name, value) {\n validateArgumentsLength(arguments.length, 1);\n var state = getInternalParamsState(this);\n var entries = state.entries;\n var found = false;\n var key = name + '';\n var val = value + '';\n var index = 0;\n var entry;\n for (; index < entries.length; index++) {\n entry = entries[index];\n if (entry.key === key) {\n if (found) entries.splice(index--, 1);\n else {\n found = true;\n entry.value = val;\n }\n }\n }\n if (!found) entries.push({ key: key, value: val });\n state.updateURL();\n },\n // `URLSearchParams.prototype.sort` method\n // https://url.spec.whatwg.org/#dom-urlsearchparams-sort\n sort: function sort() {\n var state = getInternalParamsState(this);\n var entries = state.entries;\n // Array#sort is not stable in some engines\n var slice = entries.slice();\n var entry, entriesIndex, sliceIndex;\n entries.length = 0;\n for (sliceIndex = 0; sliceIndex < slice.length; sliceIndex++) {\n entry = slice[sliceIndex];\n for (entriesIndex = 0; entriesIndex < sliceIndex; entriesIndex++) {\n if (entries[entriesIndex].key > entry.key) {\n entries.splice(entriesIndex, 0, entry);\n break;\n }\n }\n if (entriesIndex === sliceIndex) entries.push(entry);\n }\n state.updateURL();\n },\n // `URLSearchParams.prototype.forEach` method\n forEach: function forEach(callback /* , thisArg */) {\n var entries = getInternalParamsState(this).entries;\n var boundFunction = bind(callback, arguments.length > 1 ? arguments[1] : undefined, 3);\n var index = 0;\n var entry;\n while (index < entries.length) {\n entry = entries[index++];\n boundFunction(entry.value, entry.key, this);\n }\n },\n // `URLSearchParams.prototype.keys` method\n keys: function keys() {\n return new URLSearchParamsIterator(this, 'keys');\n },\n // `URLSearchParams.prototype.values` method\n values: function values() {\n return new URLSearchParamsIterator(this, 'values');\n },\n // `URLSearchParams.prototype.entries` method\n entries: function entries() {\n return new URLSearchParamsIterator(this, 'entries');\n }\n}, { enumerable: true });\n\n// `URLSearchParams.prototype[@@iterator]` method\nredefine(URLSearchParamsPrototype, ITERATOR, URLSearchParamsPrototype.entries);\n\n// `URLSearchParams.prototype.toString` method\n// https://url.spec.whatwg.org/#urlsearchparams-stringification-behavior\nredefine(URLSearchParamsPrototype, 'toString', function toString() {\n var entries = getInternalParamsState(this).entries;\n var result = [];\n var index = 0;\n var entry;\n while (index < entries.length) {\n entry = entries[index++];\n result.push(serialize(entry.key) + '=' + serialize(entry.value));\n } return result.join('&');\n}, { enumerable: true });\n\nsetToStringTag(URLSearchParamsConstructor, URL_SEARCH_PARAMS);\n\n$({ global: true, forced: !USE_NATIVE_URL }, {\n URLSearchParams: URLSearchParamsConstructor\n});\n\n// Wrap `fetch` for correct work with polyfilled `URLSearchParams`\n// https://github.com/zloirock/core-js/issues/674\nif (!USE_NATIVE_URL && typeof $fetch == 'function' && typeof Headers == 'function') {\n $({ global: true, enumerable: true, forced: true }, {\n fetch: function fetch(input /* , init */) {\n var args = [input];\n var init, body, headers;\n if (arguments.length > 1) {\n init = arguments[1];\n if (isObject(init)) {\n body = init.body;\n if (classof(body) === URL_SEARCH_PARAMS) {\n headers = init.headers ? new Headers(init.headers) : new Headers();\n if (!headers.has('content-type')) {\n headers.set('content-type', 'application/x-www-form-urlencoded;charset=UTF-8');\n }\n init = create(init, {\n body: createPropertyDescriptor(0, String(body)),\n headers: createPropertyDescriptor(0, headers)\n });\n }\n }\n args.push(init);\n } return $fetch.apply(this, args);\n }\n });\n}\n\nmodule.exports = {\n URLSearchParams: URLSearchParamsConstructor,\n getState: getInternalParamsState\n};\n","'use strict';\n// TODO: in core-js@4, move /modules/ dependencies to public entries for better optimization by tools like `preset-env`\nrequire('../modules/es.string.iterator');\nvar $ = require('../internals/export');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar USE_NATIVE_URL = require('../internals/native-url');\nvar global = require('../internals/global');\nvar defineProperties = require('../internals/object-define-properties');\nvar redefine = require('../internals/redefine');\nvar anInstance = require('../internals/an-instance');\nvar has = require('../internals/has');\nvar assign = require('../internals/object-assign');\nvar arrayFrom = require('../internals/array-from');\nvar codeAt = require('../internals/string-multibyte').codeAt;\nvar toASCII = require('../internals/string-punycode-to-ascii');\nvar setToStringTag = require('../internals/set-to-string-tag');\nvar URLSearchParamsModule = require('../modules/web.url-search-params');\nvar InternalStateModule = require('../internals/internal-state');\n\nvar NativeURL = global.URL;\nvar URLSearchParams = URLSearchParamsModule.URLSearchParams;\nvar getInternalSearchParamsState = URLSearchParamsModule.getState;\nvar setInternalState = InternalStateModule.set;\nvar getInternalURLState = InternalStateModule.getterFor('URL');\nvar floor = Math.floor;\nvar pow = Math.pow;\n\nvar INVALID_AUTHORITY = 'Invalid authority';\nvar INVALID_SCHEME = 'Invalid scheme';\nvar INVALID_HOST = 'Invalid host';\nvar INVALID_PORT = 'Invalid port';\n\nvar ALPHA = /[A-Za-z]/;\nvar ALPHANUMERIC = /[\\d+-.A-Za-z]/;\nvar DIGIT = /\\d/;\nvar HEX_START = /^(0x|0X)/;\nvar OCT = /^[0-7]+$/;\nvar DEC = /^\\d+$/;\nvar HEX = /^[\\dA-Fa-f]+$/;\n// eslint-disable-next-line no-control-regex\nvar FORBIDDEN_HOST_CODE_POINT = /[\\u0000\\u0009\\u000A\\u000D #%/:?@[\\\\]]/;\n// eslint-disable-next-line no-control-regex\nvar FORBIDDEN_HOST_CODE_POINT_EXCLUDING_PERCENT = /[\\u0000\\u0009\\u000A\\u000D #/:?@[\\\\]]/;\n// eslint-disable-next-line no-control-regex\nvar LEADING_AND_TRAILING_C0_CONTROL_OR_SPACE = /^[\\u0000-\\u001F ]+|[\\u0000-\\u001F ]+$/g;\n// eslint-disable-next-line no-control-regex\nvar TAB_AND_NEW_LINE = /[\\u0009\\u000A\\u000D]/g;\nvar EOF;\n\nvar parseHost = function (url, input) {\n var result, codePoints, index;\n if (input.charAt(0) == '[') {\n if (input.charAt(input.length - 1) != ']') return INVALID_HOST;\n result = parseIPv6(input.slice(1, -1));\n if (!result) return INVALID_HOST;\n url.host = result;\n // opaque host\n } else if (!isSpecial(url)) {\n if (FORBIDDEN_HOST_CODE_POINT_EXCLUDING_PERCENT.test(input)) return INVALID_HOST;\n result = '';\n codePoints = arrayFrom(input);\n for (index = 0; index < codePoints.length; index++) {\n result += percentEncode(codePoints[index], C0ControlPercentEncodeSet);\n }\n url.host = result;\n } else {\n input = toASCII(input);\n if (FORBIDDEN_HOST_CODE_POINT.test(input)) return INVALID_HOST;\n result = parseIPv4(input);\n if (result === null) return INVALID_HOST;\n url.host = result;\n }\n};\n\nvar parseIPv4 = function (input) {\n var parts = input.split('.');\n var partsLength, numbers, index, part, radix, number, ipv4;\n if (parts.length && parts[parts.length - 1] == '') {\n parts.pop();\n }\n partsLength = parts.length;\n if (partsLength > 4) return input;\n numbers = [];\n for (index = 0; index < partsLength; index++) {\n part = parts[index];\n if (part == '') return input;\n radix = 10;\n if (part.length > 1 && part.charAt(0) == '0') {\n radix = HEX_START.test(part) ? 16 : 8;\n part = part.slice(radix == 8 ? 1 : 2);\n }\n if (part === '') {\n number = 0;\n } else {\n if (!(radix == 10 ? DEC : radix == 8 ? OCT : HEX).test(part)) return input;\n number = parseInt(part, radix);\n }\n numbers.push(number);\n }\n for (index = 0; index < partsLength; index++) {\n number = numbers[index];\n if (index == partsLength - 1) {\n if (number >= pow(256, 5 - partsLength)) return null;\n } else if (number > 255) return null;\n }\n ipv4 = numbers.pop();\n for (index = 0; index < numbers.length; index++) {\n ipv4 += numbers[index] * pow(256, 3 - index);\n }\n return ipv4;\n};\n\n// eslint-disable-next-line max-statements\nvar parseIPv6 = function (input) {\n var address = [0, 0, 0, 0, 0, 0, 0, 0];\n var pieceIndex = 0;\n var compress = null;\n var pointer = 0;\n var value, length, numbersSeen, ipv4Piece, number, swaps, swap;\n\n var char = function () {\n return input.charAt(pointer);\n };\n\n if (char() == ':') {\n if (input.charAt(1) != ':') return;\n pointer += 2;\n pieceIndex++;\n compress = pieceIndex;\n }\n while (char()) {\n if (pieceIndex == 8) return;\n if (char() == ':') {\n if (compress !== null) return;\n pointer++;\n pieceIndex++;\n compress = pieceIndex;\n continue;\n }\n value = length = 0;\n while (length < 4 && HEX.test(char())) {\n value = value * 16 + parseInt(char(), 16);\n pointer++;\n length++;\n }\n if (char() == '.') {\n if (length == 0) return;\n pointer -= length;\n if (pieceIndex > 6) return;\n numbersSeen = 0;\n while (char()) {\n ipv4Piece = null;\n if (numbersSeen > 0) {\n if (char() == '.' && numbersSeen < 4) pointer++;\n else return;\n }\n if (!DIGIT.test(char())) return;\n while (DIGIT.test(char())) {\n number = parseInt(char(), 10);\n if (ipv4Piece === null) ipv4Piece = number;\n else if (ipv4Piece == 0) return;\n else ipv4Piece = ipv4Piece * 10 + number;\n if (ipv4Piece > 255) return;\n pointer++;\n }\n address[pieceIndex] = address[pieceIndex] * 256 + ipv4Piece;\n numbersSeen++;\n if (numbersSeen == 2 || numbersSeen == 4) pieceIndex++;\n }\n if (numbersSeen != 4) return;\n break;\n } else if (char() == ':') {\n pointer++;\n if (!char()) return;\n } else if (char()) return;\n address[pieceIndex++] = value;\n }\n if (compress !== null) {\n swaps = pieceIndex - compress;\n pieceIndex = 7;\n while (pieceIndex != 0 && swaps > 0) {\n swap = address[pieceIndex];\n address[pieceIndex--] = address[compress + swaps - 1];\n address[compress + --swaps] = swap;\n }\n } else if (pieceIndex != 8) return;\n return address;\n};\n\nvar findLongestZeroSequence = function (ipv6) {\n var maxIndex = null;\n var maxLength = 1;\n var currStart = null;\n var currLength = 0;\n var index = 0;\n for (; index < 8; index++) {\n if (ipv6[index] !== 0) {\n if (currLength > maxLength) {\n maxIndex = currStart;\n maxLength = currLength;\n }\n currStart = null;\n currLength = 0;\n } else {\n if (currStart === null) currStart = index;\n ++currLength;\n }\n }\n if (currLength > maxLength) {\n maxIndex = currStart;\n maxLength = currLength;\n }\n return maxIndex;\n};\n\nvar serializeHost = function (host) {\n var result, index, compress, ignore0;\n // ipv4\n if (typeof host == 'number') {\n result = [];\n for (index = 0; index < 4; index++) {\n result.unshift(host % 256);\n host = floor(host / 256);\n } return result.join('.');\n // ipv6\n } else if (typeof host == 'object') {\n result = '';\n compress = findLongestZeroSequence(host);\n for (index = 0; index < 8; index++) {\n if (ignore0 && host[index] === 0) continue;\n if (ignore0) ignore0 = false;\n if (compress === index) {\n result += index ? ':' : '::';\n ignore0 = true;\n } else {\n result += host[index].toString(16);\n if (index < 7) result += ':';\n }\n }\n return '[' + result + ']';\n } return host;\n};\n\nvar C0ControlPercentEncodeSet = {};\nvar fragmentPercentEncodeSet = assign({}, C0ControlPercentEncodeSet, {\n ' ': 1, '\"': 1, '<': 1, '>': 1, '`': 1\n});\nvar pathPercentEncodeSet = assign({}, fragmentPercentEncodeSet, {\n '#': 1, '?': 1, '{': 1, '}': 1\n});\nvar userinfoPercentEncodeSet = assign({}, pathPercentEncodeSet, {\n '/': 1, ':': 1, ';': 1, '=': 1, '@': 1, '[': 1, '\\\\': 1, ']': 1, '^': 1, '|': 1\n});\n\nvar percentEncode = function (char, set) {\n var code = codeAt(char, 0);\n return code > 0x20 && code < 0x7F && !has(set, char) ? char : encodeURIComponent(char);\n};\n\nvar specialSchemes = {\n ftp: 21,\n file: null,\n http: 80,\n https: 443,\n ws: 80,\n wss: 443\n};\n\nvar isSpecial = function (url) {\n return has(specialSchemes, url.scheme);\n};\n\nvar includesCredentials = function (url) {\n return url.username != '' || url.password != '';\n};\n\nvar cannotHaveUsernamePasswordPort = function (url) {\n return !url.host || url.cannotBeABaseURL || url.scheme == 'file';\n};\n\nvar isWindowsDriveLetter = function (string, normalized) {\n var second;\n return string.length == 2 && ALPHA.test(string.charAt(0))\n && ((second = string.charAt(1)) == ':' || (!normalized && second == '|'));\n};\n\nvar startsWithWindowsDriveLetter = function (string) {\n var third;\n return string.length > 1 && isWindowsDriveLetter(string.slice(0, 2)) && (\n string.length == 2 ||\n ((third = string.charAt(2)) === '/' || third === '\\\\' || third === '?' || third === '#')\n );\n};\n\nvar shortenURLsPath = function (url) {\n var path = url.path;\n var pathSize = path.length;\n if (pathSize && (url.scheme != 'file' || pathSize != 1 || !isWindowsDriveLetter(path[0], true))) {\n path.pop();\n }\n};\n\nvar isSingleDot = function (segment) {\n return segment === '.' || segment.toLowerCase() === '%2e';\n};\n\nvar isDoubleDot = function (segment) {\n segment = segment.toLowerCase();\n return segment === '..' || segment === '%2e.' || segment === '.%2e' || segment === '%2e%2e';\n};\n\n// States:\nvar SCHEME_START = {};\nvar SCHEME = {};\nvar NO_SCHEME = {};\nvar SPECIAL_RELATIVE_OR_AUTHORITY = {};\nvar PATH_OR_AUTHORITY = {};\nvar RELATIVE = {};\nvar RELATIVE_SLASH = {};\nvar SPECIAL_AUTHORITY_SLASHES = {};\nvar SPECIAL_AUTHORITY_IGNORE_SLASHES = {};\nvar AUTHORITY = {};\nvar HOST = {};\nvar HOSTNAME = {};\nvar PORT = {};\nvar FILE = {};\nvar FILE_SLASH = {};\nvar FILE_HOST = {};\nvar PATH_START = {};\nvar PATH = {};\nvar CANNOT_BE_A_BASE_URL_PATH = {};\nvar QUERY = {};\nvar FRAGMENT = {};\n\n// eslint-disable-next-line max-statements\nvar parseURL = function (url, input, stateOverride, base) {\n var state = stateOverride || SCHEME_START;\n var pointer = 0;\n var buffer = '';\n var seenAt = false;\n var seenBracket = false;\n var seenPasswordToken = false;\n var codePoints, char, bufferCodePoints, failure;\n\n if (!stateOverride) {\n url.scheme = '';\n url.username = '';\n url.password = '';\n url.host = null;\n url.port = null;\n url.path = [];\n url.query = null;\n url.fragment = null;\n url.cannotBeABaseURL = false;\n input = input.replace(LEADING_AND_TRAILING_C0_CONTROL_OR_SPACE, '');\n }\n\n input = input.replace(TAB_AND_NEW_LINE, '');\n\n codePoints = arrayFrom(input);\n\n while (pointer <= codePoints.length) {\n char = codePoints[pointer];\n switch (state) {\n case SCHEME_START:\n if (char && ALPHA.test(char)) {\n buffer += char.toLowerCase();\n state = SCHEME;\n } else if (!stateOverride) {\n state = NO_SCHEME;\n continue;\n } else return INVALID_SCHEME;\n break;\n\n case SCHEME:\n if (char && (ALPHANUMERIC.test(char) || char == '+' || char == '-' || char == '.')) {\n buffer += char.toLowerCase();\n } else if (char == ':') {\n if (stateOverride && (\n (isSpecial(url) != has(specialSchemes, buffer)) ||\n (buffer == 'file' && (includesCredentials(url) || url.port !== null)) ||\n (url.scheme == 'file' && !url.host)\n )) return;\n url.scheme = buffer;\n if (stateOverride) {\n if (isSpecial(url) && specialSchemes[url.scheme] == url.port) url.port = null;\n return;\n }\n buffer = '';\n if (url.scheme == 'file') {\n state = FILE;\n } else if (isSpecial(url) && base && base.scheme == url.scheme) {\n state = SPECIAL_RELATIVE_OR_AUTHORITY;\n } else if (isSpecial(url)) {\n state = SPECIAL_AUTHORITY_SLASHES;\n } else if (codePoints[pointer + 1] == '/') {\n state = PATH_OR_AUTHORITY;\n pointer++;\n } else {\n url.cannotBeABaseURL = true;\n url.path.push('');\n state = CANNOT_BE_A_BASE_URL_PATH;\n }\n } else if (!stateOverride) {\n buffer = '';\n state = NO_SCHEME;\n pointer = 0;\n continue;\n } else return INVALID_SCHEME;\n break;\n\n case NO_SCHEME:\n if (!base || (base.cannotBeABaseURL && char != '#')) return INVALID_SCHEME;\n if (base.cannotBeABaseURL && char == '#') {\n url.scheme = base.scheme;\n url.path = base.path.slice();\n url.query = base.query;\n url.fragment = '';\n url.cannotBeABaseURL = true;\n state = FRAGMENT;\n break;\n }\n state = base.scheme == 'file' ? FILE : RELATIVE;\n continue;\n\n case SPECIAL_RELATIVE_OR_AUTHORITY:\n if (char == '/' && codePoints[pointer + 1] == '/') {\n state = SPECIAL_AUTHORITY_IGNORE_SLASHES;\n pointer++;\n } else {\n state = RELATIVE;\n continue;\n } break;\n\n case PATH_OR_AUTHORITY:\n if (char == '/') {\n state = AUTHORITY;\n break;\n } else {\n state = PATH;\n continue;\n }\n\n case RELATIVE:\n url.scheme = base.scheme;\n if (char == EOF) {\n url.username = base.username;\n url.password = base.password;\n url.host = base.host;\n url.port = base.port;\n url.path = base.path.slice();\n url.query = base.query;\n } else if (char == '/' || (char == '\\\\' && isSpecial(url))) {\n state = RELATIVE_SLASH;\n } else if (char == '?') {\n url.username = base.username;\n url.password = base.password;\n url.host = base.host;\n url.port = base.port;\n url.path = base.path.slice();\n url.query = '';\n state = QUERY;\n } else if (char == '#') {\n url.username = base.username;\n url.password = base.password;\n url.host = base.host;\n url.port = base.port;\n url.path = base.path.slice();\n url.query = base.query;\n url.fragment = '';\n state = FRAGMENT;\n } else {\n url.username = base.username;\n url.password = base.password;\n url.host = base.host;\n url.port = base.port;\n url.path = base.path.slice();\n url.path.pop();\n state = PATH;\n continue;\n } break;\n\n case RELATIVE_SLASH:\n if (isSpecial(url) && (char == '/' || char == '\\\\')) {\n state = SPECIAL_AUTHORITY_IGNORE_SLASHES;\n } else if (char == '/') {\n state = AUTHORITY;\n } else {\n url.username = base.username;\n url.password = base.password;\n url.host = base.host;\n url.port = base.port;\n state = PATH;\n continue;\n } break;\n\n case SPECIAL_AUTHORITY_SLASHES:\n state = SPECIAL_AUTHORITY_IGNORE_SLASHES;\n if (char != '/' || buffer.charAt(pointer + 1) != '/') continue;\n pointer++;\n break;\n\n case SPECIAL_AUTHORITY_IGNORE_SLASHES:\n if (char != '/' && char != '\\\\') {\n state = AUTHORITY;\n continue;\n } break;\n\n case AUTHORITY:\n if (char == '@') {\n if (seenAt) buffer = '%40' + buffer;\n seenAt = true;\n bufferCodePoints = arrayFrom(buffer);\n for (var i = 0; i < bufferCodePoints.length; i++) {\n var codePoint = bufferCodePoints[i];\n if (codePoint == ':' && !seenPasswordToken) {\n seenPasswordToken = true;\n continue;\n }\n var encodedCodePoints = percentEncode(codePoint, userinfoPercentEncodeSet);\n if (seenPasswordToken) url.password += encodedCodePoints;\n else url.username += encodedCodePoints;\n }\n buffer = '';\n } else if (\n char == EOF || char == '/' || char == '?' || char == '#' ||\n (char == '\\\\' && isSpecial(url))\n ) {\n if (seenAt && buffer == '') return INVALID_AUTHORITY;\n pointer -= arrayFrom(buffer).length + 1;\n buffer = '';\n state = HOST;\n } else buffer += char;\n break;\n\n case HOST:\n case HOSTNAME:\n if (stateOverride && url.scheme == 'file') {\n state = FILE_HOST;\n continue;\n } else if (char == ':' && !seenBracket) {\n if (buffer == '') return INVALID_HOST;\n failure = parseHost(url, buffer);\n if (failure) return failure;\n buffer = '';\n state = PORT;\n if (stateOverride == HOSTNAME) return;\n } else if (\n char == EOF || char == '/' || char == '?' || char == '#' ||\n (char == '\\\\' && isSpecial(url))\n ) {\n if (isSpecial(url) && buffer == '') return INVALID_HOST;\n if (stateOverride && buffer == '' && (includesCredentials(url) || url.port !== null)) return;\n failure = parseHost(url, buffer);\n if (failure) return failure;\n buffer = '';\n state = PATH_START;\n if (stateOverride) return;\n continue;\n } else {\n if (char == '[') seenBracket = true;\n else if (char == ']') seenBracket = false;\n buffer += char;\n } break;\n\n case PORT:\n if (DIGIT.test(char)) {\n buffer += char;\n } else if (\n char == EOF || char == '/' || char == '?' || char == '#' ||\n (char == '\\\\' && isSpecial(url)) ||\n stateOverride\n ) {\n if (buffer != '') {\n var port = parseInt(buffer, 10);\n if (port > 0xFFFF) return INVALID_PORT;\n url.port = (isSpecial(url) && port === specialSchemes[url.scheme]) ? null : port;\n buffer = '';\n }\n if (stateOverride) return;\n state = PATH_START;\n continue;\n } else return INVALID_PORT;\n break;\n\n case FILE:\n url.scheme = 'file';\n if (char == '/' || char == '\\\\') state = FILE_SLASH;\n else if (base && base.scheme == 'file') {\n if (char == EOF) {\n url.host = base.host;\n url.path = base.path.slice();\n url.query = base.query;\n } else if (char == '?') {\n url.host = base.host;\n url.path = base.path.slice();\n url.query = '';\n state = QUERY;\n } else if (char == '#') {\n url.host = base.host;\n url.path = base.path.slice();\n url.query = base.query;\n url.fragment = '';\n state = FRAGMENT;\n } else {\n if (!startsWithWindowsDriveLetter(codePoints.slice(pointer).join(''))) {\n url.host = base.host;\n url.path = base.path.slice();\n shortenURLsPath(url);\n }\n state = PATH;\n continue;\n }\n } else {\n state = PATH;\n continue;\n } break;\n\n case FILE_SLASH:\n if (char == '/' || char == '\\\\') {\n state = FILE_HOST;\n break;\n }\n if (base && base.scheme == 'file' && !startsWithWindowsDriveLetter(codePoints.slice(pointer).join(''))) {\n if (isWindowsDriveLetter(base.path[0], true)) url.path.push(base.path[0]);\n else url.host = base.host;\n }\n state = PATH;\n continue;\n\n case FILE_HOST:\n if (char == EOF || char == '/' || char == '\\\\' || char == '?' || char == '#') {\n if (!stateOverride && isWindowsDriveLetter(buffer)) {\n state = PATH;\n } else if (buffer == '') {\n url.host = '';\n if (stateOverride) return;\n state = PATH_START;\n } else {\n failure = parseHost(url, buffer);\n if (failure) return failure;\n if (url.host == 'localhost') url.host = '';\n if (stateOverride) return;\n buffer = '';\n state = PATH_START;\n } continue;\n } else buffer += char;\n break;\n\n case PATH_START:\n if (isSpecial(url)) {\n state = PATH;\n if (char != '/' && char != '\\\\') continue;\n } else if (!stateOverride && char == '?') {\n url.query = '';\n state = QUERY;\n } else if (!stateOverride && char == '#') {\n url.fragment = '';\n state = FRAGMENT;\n } else if (char != EOF) {\n state = PATH;\n if (char != '/') continue;\n } break;\n\n case PATH:\n if (\n char == EOF || char == '/' ||\n (char == '\\\\' && isSpecial(url)) ||\n (!stateOverride && (char == '?' || char == '#'))\n ) {\n if (isDoubleDot(buffer)) {\n shortenURLsPath(url);\n if (char != '/' && !(char == '\\\\' && isSpecial(url))) {\n url.path.push('');\n }\n } else if (isSingleDot(buffer)) {\n if (char != '/' && !(char == '\\\\' && isSpecial(url))) {\n url.path.push('');\n }\n } else {\n if (url.scheme == 'file' && !url.path.length && isWindowsDriveLetter(buffer)) {\n if (url.host) url.host = '';\n buffer = buffer.charAt(0) + ':'; // normalize windows drive letter\n }\n url.path.push(buffer);\n }\n buffer = '';\n if (url.scheme == 'file' && (char == EOF || char == '?' || char == '#')) {\n while (url.path.length > 1 && url.path[0] === '') {\n url.path.shift();\n }\n }\n if (char == '?') {\n url.query = '';\n state = QUERY;\n } else if (char == '#') {\n url.fragment = '';\n state = FRAGMENT;\n }\n } else {\n buffer += percentEncode(char, pathPercentEncodeSet);\n } break;\n\n case CANNOT_BE_A_BASE_URL_PATH:\n if (char == '?') {\n url.query = '';\n state = QUERY;\n } else if (char == '#') {\n url.fragment = '';\n state = FRAGMENT;\n } else if (char != EOF) {\n url.path[0] += percentEncode(char, C0ControlPercentEncodeSet);\n } break;\n\n case QUERY:\n if (!stateOverride && char == '#') {\n url.fragment = '';\n state = FRAGMENT;\n } else if (char != EOF) {\n if (char == \"'\" && isSpecial(url)) url.query += '%27';\n else if (char == '#') url.query += '%23';\n else url.query += percentEncode(char, C0ControlPercentEncodeSet);\n } break;\n\n case FRAGMENT:\n if (char != EOF) url.fragment += percentEncode(char, fragmentPercentEncodeSet);\n break;\n }\n\n pointer++;\n }\n};\n\n// `URL` constructor\n// https://url.spec.whatwg.org/#url-class\nvar URLConstructor = function URL(url /* , base */) {\n var that = anInstance(this, URLConstructor, 'URL');\n var base = arguments.length > 1 ? arguments[1] : undefined;\n var urlString = String(url);\n var state = setInternalState(that, { type: 'URL' });\n var baseState, failure;\n if (base !== undefined) {\n if (base instanceof URLConstructor) baseState = getInternalURLState(base);\n else {\n failure = parseURL(baseState = {}, String(base));\n if (failure) throw TypeError(failure);\n }\n }\n failure = parseURL(state, urlString, null, baseState);\n if (failure) throw TypeError(failure);\n var searchParams = state.searchParams = new URLSearchParams();\n var searchParamsState = getInternalSearchParamsState(searchParams);\n searchParamsState.updateSearchParams(state.query);\n searchParamsState.updateURL = function () {\n state.query = String(searchParams) || null;\n };\n if (!DESCRIPTORS) {\n that.href = serializeURL.call(that);\n that.origin = getOrigin.call(that);\n that.protocol = getProtocol.call(that);\n that.username = getUsername.call(that);\n that.password = getPassword.call(that);\n that.host = getHost.call(that);\n that.hostname = getHostname.call(that);\n that.port = getPort.call(that);\n that.pathname = getPathname.call(that);\n that.search = getSearch.call(that);\n that.searchParams = getSearchParams.call(that);\n that.hash = getHash.call(that);\n }\n};\n\nvar URLPrototype = URLConstructor.prototype;\n\nvar serializeURL = function () {\n var url = getInternalURLState(this);\n var scheme = url.scheme;\n var username = url.username;\n var password = url.password;\n var host = url.host;\n var port = url.port;\n var path = url.path;\n var query = url.query;\n var fragment = url.fragment;\n var output = scheme + ':';\n if (host !== null) {\n output += '//';\n if (includesCredentials(url)) {\n output += username + (password ? ':' + password : '') + '@';\n }\n output += serializeHost(host);\n if (port !== null) output += ':' + port;\n } else if (scheme == 'file') output += '//';\n output += url.cannotBeABaseURL ? path[0] : path.length ? '/' + path.join('/') : '';\n if (query !== null) output += '?' + query;\n if (fragment !== null) output += '#' + fragment;\n return output;\n};\n\nvar getOrigin = function () {\n var url = getInternalURLState(this);\n var scheme = url.scheme;\n var port = url.port;\n if (scheme == 'blob') try {\n return new URL(scheme.path[0]).origin;\n } catch (error) {\n return 'null';\n }\n if (scheme == 'file' || !isSpecial(url)) return 'null';\n return scheme + '://' + serializeHost(url.host) + (port !== null ? ':' + port : '');\n};\n\nvar getProtocol = function () {\n return getInternalURLState(this).scheme + ':';\n};\n\nvar getUsername = function () {\n return getInternalURLState(this).username;\n};\n\nvar getPassword = function () {\n return getInternalURLState(this).password;\n};\n\nvar getHost = function () {\n var url = getInternalURLState(this);\n var host = url.host;\n var port = url.port;\n return host === null ? ''\n : port === null ? serializeHost(host)\n : serializeHost(host) + ':' + port;\n};\n\nvar getHostname = function () {\n var host = getInternalURLState(this).host;\n return host === null ? '' : serializeHost(host);\n};\n\nvar getPort = function () {\n var port = getInternalURLState(this).port;\n return port === null ? '' : String(port);\n};\n\nvar getPathname = function () {\n var url = getInternalURLState(this);\n var path = url.path;\n return url.cannotBeABaseURL ? path[0] : path.length ? '/' + path.join('/') : '';\n};\n\nvar getSearch = function () {\n var query = getInternalURLState(this).query;\n return query ? '?' + query : '';\n};\n\nvar getSearchParams = function () {\n return getInternalURLState(this).searchParams;\n};\n\nvar getHash = function () {\n var fragment = getInternalURLState(this).fragment;\n return fragment ? '#' + fragment : '';\n};\n\nvar accessorDescriptor = function (getter, setter) {\n return { get: getter, set: setter, configurable: true, enumerable: true };\n};\n\nif (DESCRIPTORS) {\n defineProperties(URLPrototype, {\n // `URL.prototype.href` accessors pair\n // https://url.spec.whatwg.org/#dom-url-href\n href: accessorDescriptor(serializeURL, function (href) {\n var url = getInternalURLState(this);\n var urlString = String(href);\n var failure = parseURL(url, urlString);\n if (failure) throw TypeError(failure);\n getInternalSearchParamsState(url.searchParams).updateSearchParams(url.query);\n }),\n // `URL.prototype.origin` getter\n // https://url.spec.whatwg.org/#dom-url-origin\n origin: accessorDescriptor(getOrigin),\n // `URL.prototype.protocol` accessors pair\n // https://url.spec.whatwg.org/#dom-url-protocol\n protocol: accessorDescriptor(getProtocol, function (protocol) {\n var url = getInternalURLState(this);\n parseURL(url, String(protocol) + ':', SCHEME_START);\n }),\n // `URL.prototype.username` accessors pair\n // https://url.spec.whatwg.org/#dom-url-username\n username: accessorDescriptor(getUsername, function (username) {\n var url = getInternalURLState(this);\n var codePoints = arrayFrom(String(username));\n if (cannotHaveUsernamePasswordPort(url)) return;\n url.username = '';\n for (var i = 0; i < codePoints.length; i++) {\n url.username += percentEncode(codePoints[i], userinfoPercentEncodeSet);\n }\n }),\n // `URL.prototype.password` accessors pair\n // https://url.spec.whatwg.org/#dom-url-password\n password: accessorDescriptor(getPassword, function (password) {\n var url = getInternalURLState(this);\n var codePoints = arrayFrom(String(password));\n if (cannotHaveUsernamePasswordPort(url)) return;\n url.password = '';\n for (var i = 0; i < codePoints.length; i++) {\n url.password += percentEncode(codePoints[i], userinfoPercentEncodeSet);\n }\n }),\n // `URL.prototype.host` accessors pair\n // https://url.spec.whatwg.org/#dom-url-host\n host: accessorDescriptor(getHost, function (host) {\n var url = getInternalURLState(this);\n if (url.cannotBeABaseURL) return;\n parseURL(url, String(host), HOST);\n }),\n // `URL.prototype.hostname` accessors pair\n // https://url.spec.whatwg.org/#dom-url-hostname\n hostname: accessorDescriptor(getHostname, function (hostname) {\n var url = getInternalURLState(this);\n if (url.cannotBeABaseURL) return;\n parseURL(url, String(hostname), HOSTNAME);\n }),\n // `URL.prototype.port` accessors pair\n // https://url.spec.whatwg.org/#dom-url-port\n port: accessorDescriptor(getPort, function (port) {\n var url = getInternalURLState(this);\n if (cannotHaveUsernamePasswordPort(url)) return;\n port = String(port);\n if (port == '') url.port = null;\n else parseURL(url, port, PORT);\n }),\n // `URL.prototype.pathname` accessors pair\n // https://url.spec.whatwg.org/#dom-url-pathname\n pathname: accessorDescriptor(getPathname, function (pathname) {\n var url = getInternalURLState(this);\n if (url.cannotBeABaseURL) return;\n url.path = [];\n parseURL(url, pathname + '', PATH_START);\n }),\n // `URL.prototype.search` accessors pair\n // https://url.spec.whatwg.org/#dom-url-search\n search: accessorDescriptor(getSearch, function (search) {\n var url = getInternalURLState(this);\n search = String(search);\n if (search == '') {\n url.query = null;\n } else {\n if ('?' == search.charAt(0)) search = search.slice(1);\n url.query = '';\n parseURL(url, search, QUERY);\n }\n getInternalSearchParamsState(url.searchParams).updateSearchParams(url.query);\n }),\n // `URL.prototype.searchParams` getter\n // https://url.spec.whatwg.org/#dom-url-searchparams\n searchParams: accessorDescriptor(getSearchParams),\n // `URL.prototype.hash` accessors pair\n // https://url.spec.whatwg.org/#dom-url-hash\n hash: accessorDescriptor(getHash, function (hash) {\n var url = getInternalURLState(this);\n hash = String(hash);\n if (hash == '') {\n url.fragment = null;\n return;\n }\n if ('#' == hash.charAt(0)) hash = hash.slice(1);\n url.fragment = '';\n parseURL(url, hash, FRAGMENT);\n })\n });\n}\n\n// `URL.prototype.toJSON` method\n// https://url.spec.whatwg.org/#dom-url-tojson\nredefine(URLPrototype, 'toJSON', function toJSON() {\n return serializeURL.call(this);\n}, { enumerable: true });\n\n// `URL.prototype.toString` method\n// https://url.spec.whatwg.org/#URL-stringification-behavior\nredefine(URLPrototype, 'toString', function toString() {\n return serializeURL.call(this);\n}, { enumerable: true });\n\nif (NativeURL) {\n var nativeCreateObjectURL = NativeURL.createObjectURL;\n var nativeRevokeObjectURL = NativeURL.revokeObjectURL;\n // `URL.createObjectURL` method\n // https://developer.mozilla.org/en-US/docs/Web/API/URL/createObjectURL\n // eslint-disable-next-line no-unused-vars\n if (nativeCreateObjectURL) redefine(URLConstructor, 'createObjectURL', function createObjectURL(blob) {\n return nativeCreateObjectURL.apply(NativeURL, arguments);\n });\n // `URL.revokeObjectURL` method\n // https://developer.mozilla.org/en-US/docs/Web/API/URL/revokeObjectURL\n // eslint-disable-next-line no-unused-vars\n if (nativeRevokeObjectURL) redefine(URLConstructor, 'revokeObjectURL', function revokeObjectURL(url) {\n return nativeRevokeObjectURL.apply(NativeURL, arguments);\n });\n}\n\nsetToStringTag(URLConstructor, 'URL');\n\n$({ global: true, forced: !USE_NATIVE_URL, sham: !DESCRIPTORS }, {\n URL: URLConstructor\n});\n","'use strict';\nvar $ = require('../internals/export');\n\n// `URL.prototype.toJSON` method\n// https://url.spec.whatwg.org/#dom-url-tojson\n$({ target: 'URL', proto: true, enumerable: true }, {\n toJSON: function toJSON() {\n return URL.prototype.toString.call(this);\n }\n});\n","require('../modules/esnext.array.is-template-object');\n","require('../modules/esnext.array.last-index');\nrequire('../modules/esnext.array.last-item');\n","require('../modules/esnext.map.group-by');\nrequire('../modules/esnext.map.key-by');\nrequire('../modules/esnext.map.delete-all');\nrequire('../modules/esnext.map.every');\nrequire('../modules/esnext.map.filter');\nrequire('../modules/esnext.map.find');\nrequire('../modules/esnext.map.find-key');\nrequire('../modules/esnext.map.includes');\nrequire('../modules/esnext.map.key-of');\nrequire('../modules/esnext.map.map-keys');\nrequire('../modules/esnext.map.map-values');\nrequire('../modules/esnext.map.merge');\nrequire('../modules/esnext.map.reduce');\nrequire('../modules/esnext.map.some');\nrequire('../modules/esnext.map.update');\nrequire('../modules/esnext.set.add-all');\nrequire('../modules/esnext.set.delete-all');\nrequire('../modules/esnext.set.every');\nrequire('../modules/esnext.set.filter');\nrequire('../modules/esnext.set.find');\nrequire('../modules/esnext.set.join');\nrequire('../modules/esnext.set.map');\nrequire('../modules/esnext.set.reduce');\nrequire('../modules/esnext.set.some');\nrequire('../modules/esnext.weak-map.delete-all');\nrequire('../modules/esnext.weak-set.add-all');\nrequire('../modules/esnext.weak-set.delete-all');\n","require('../modules/esnext.map.from');\nrequire('../modules/esnext.map.of');\nrequire('../modules/esnext.set.from');\nrequire('../modules/esnext.set.of');\nrequire('../modules/esnext.weak-map.from');\nrequire('../modules/esnext.weak-map.of');\nrequire('../modules/esnext.weak-set.from');\nrequire('../modules/esnext.weak-set.of');\n","require('../modules/esnext.math.iaddh');\nrequire('../modules/esnext.math.isubh');\nrequire('../modules/esnext.math.imulh');\nrequire('../modules/esnext.math.umulh');\n","require('../modules/esnext.global-this');\nvar global = require('../internals/global');\n\nmodule.exports = global;\n","require('../stage');\n","require('../modules/esnext.async-iterator.constructor');\nrequire('../modules/esnext.async-iterator.as-indexed-pairs');\nrequire('../modules/esnext.async-iterator.drop');\nrequire('../modules/esnext.async-iterator.every');\nrequire('../modules/esnext.async-iterator.filter');\nrequire('../modules/esnext.async-iterator.find');\nrequire('../modules/esnext.async-iterator.flat-map');\nrequire('../modules/esnext.async-iterator.for-each');\nrequire('../modules/esnext.async-iterator.from');\nrequire('../modules/esnext.async-iterator.map');\nrequire('../modules/esnext.async-iterator.reduce');\nrequire('../modules/esnext.async-iterator.some');\nrequire('../modules/esnext.async-iterator.take');\nrequire('../modules/esnext.async-iterator.to-array');\nrequire('../modules/esnext.iterator.constructor');\nrequire('../modules/esnext.iterator.as-indexed-pairs');\nrequire('../modules/esnext.iterator.drop');\nrequire('../modules/esnext.iterator.every');\nrequire('../modules/esnext.iterator.filter');\nrequire('../modules/esnext.iterator.find');\nrequire('../modules/esnext.iterator.flat-map');\nrequire('../modules/esnext.iterator.for-each');\nrequire('../modules/esnext.iterator.from');\nrequire('../modules/esnext.iterator.map');\nrequire('../modules/esnext.iterator.reduce');\nrequire('../modules/esnext.iterator.some');\nrequire('../modules/esnext.iterator.take');\nrequire('../modules/esnext.iterator.to-array');\n","require('../modules/esnext.composite-key');\nrequire('../modules/esnext.composite-symbol');\n","// https://github.com/thumbsupep/proposal-upsert\n// TODO: remove from `core-js@4`\nrequire('../modules/esnext.map.update-or-insert');\nrequire('../modules/esnext.map.upsert');\nrequire('../modules/esnext.weak-map.upsert');\n","require('../modules/esnext.math.clamp');\nrequire('../modules/esnext.math.deg-per-rad');\nrequire('../modules/esnext.math.degrees');\nrequire('../modules/esnext.math.fscale');\nrequire('../modules/esnext.math.rad-per-deg');\nrequire('../modules/esnext.math.radians');\nrequire('../modules/esnext.math.scale');\n","require('../modules/esnext.math.signbit');\n","require('../modules/esnext.number.from-string');\n","require('../modules/esnext.object.iterate-entries');\nrequire('../modules/esnext.object.iterate-keys');\nrequire('../modules/esnext.object.iterate-values');\n","require('../modules/esnext.observable');\nrequire('../modules/esnext.symbol.observable');\n","require('../modules/esnext.symbol.pattern-match');\n","// TODO: Remove from `core-js@4`\nrequire('../modules/esnext.promise.all-settled');\n","require('../modules/esnext.aggregate-error');\nrequire('../modules/esnext.promise.any');\n","require('../modules/esnext.promise.try');\n","require('../modules/esnext.reflect.define-metadata');\nrequire('../modules/esnext.reflect.delete-metadata');\nrequire('../modules/esnext.reflect.get-metadata');\nrequire('../modules/esnext.reflect.get-metadata-keys');\nrequire('../modules/esnext.reflect.get-own-metadata');\nrequire('../modules/esnext.reflect.get-own-metadata-keys');\nrequire('../modules/esnext.reflect.has-metadata');\nrequire('../modules/esnext.reflect.has-own-metadata');\nrequire('../modules/esnext.reflect.metadata');\n","require('../modules/esnext.math.seeded-prng');\n","require('../modules/esnext.set.difference');\nrequire('../modules/esnext.set.intersection');\nrequire('../modules/esnext.set.is-disjoint-from');\nrequire('../modules/esnext.set.is-subset-of');\nrequire('../modules/esnext.set.is-superset-of');\nrequire('../modules/esnext.set.union');\nrequire('../modules/esnext.set.symmetric-difference');\n","require('../modules/esnext.string.at');\n","require('../modules/esnext.string.code-points');\n","// TODO: Remove from `core-js@4`\nrequire('../modules/esnext.string.match-all');\n","require('../modules/esnext.string.replace-all');\nrequire('../modules/esnext.symbol.replace-all');\n","require('../modules/web.url');\nrequire('../modules/web.url.to-json');\nrequire('../modules/web.url-search-params');\n","// https://github.com/tc39/proposal-using-statement\nrequire('../modules/esnext.symbol.async-dispose');\nrequire('../modules/esnext.symbol.dispose');\n","require('../proposals/efficient-64-bit-arithmetic');\nrequire('../proposals/string-at');\nrequire('../proposals/url');\nvar parent = require('./1');\n\nmodule.exports = parent;\n","require('../proposals/array-last');\nrequire('../proposals/collection-methods');\nrequire('../proposals/collection-of-from');\nrequire('../proposals/keys-composition');\nrequire('../proposals/math-extensions');\nrequire('../proposals/math-signbit');\nrequire('../proposals/number-from-string');\nrequire('../proposals/object-iteration');\nrequire('../proposals/observable');\nrequire('../proposals/pattern-matching');\nrequire('../proposals/promise-try');\nrequire('../proposals/seeded-random');\nrequire('../proposals/string-code-points');\nvar parent = require('./2');\n\nmodule.exports = parent;\n","require('../proposals/array-is-template-object');\nrequire('../proposals/iterator-helpers');\nrequire('../proposals/map-upsert');\nrequire('../proposals/set-methods');\nrequire('../proposals/using-statement');\nvar parent = require('./3');\n\nmodule.exports = parent;\n","require('../proposals/promise-any');\nrequire('../proposals/string-replace-all');\nvar parent = require('./4');\n\nmodule.exports = parent;\n","require('../proposals/global-this');\nrequire('../proposals/promise-all-settled');\nrequire('../proposals/string-match-all');\nvar path = require('../internals/path');\n\nmodule.exports = path;\n","var proposals = require('./pre');\n\nmodule.exports = proposals;\n","require('../proposals/reflect-metadata');\nvar parent = require('./0');\n\nmodule.exports = parent;\n","require('../modules/web.dom-collections.for-each');\nrequire('../modules/web.dom-collections.iterator');\nrequire('../modules/web.immediate');\nrequire('../modules/web.queue-microtask');\nrequire('../modules/web.timers');\nrequire('../modules/web.url');\nrequire('../modules/web.url.to-json');\nrequire('../modules/web.url-search-params');\nvar path = require('../internals/path');\n\nmodule.exports = path;\n","var balanced = require('balanced-match');\n\nmodule.exports = expandTop;\n\nvar escSlash = '\\0SLASH'+Math.random()+'\\0';\nvar escOpen = '\\0OPEN'+Math.random()+'\\0';\nvar escClose = '\\0CLOSE'+Math.random()+'\\0';\nvar escComma = '\\0COMMA'+Math.random()+'\\0';\nvar escPeriod = '\\0PERIOD'+Math.random()+'\\0';\n\nfunction numeric(str) {\n return parseInt(str, 10) == str\n ? parseInt(str, 10)\n : str.charCodeAt(0);\n}\n\nfunction escapeBraces(str) {\n return str.split('\\\\\\\\').join(escSlash)\n .split('\\\\{').join(escOpen)\n .split('\\\\}').join(escClose)\n .split('\\\\,').join(escComma)\n .split('\\\\.').join(escPeriod);\n}\n\nfunction unescapeBraces(str) {\n return str.split(escSlash).join('\\\\')\n .split(escOpen).join('{')\n .split(escClose).join('}')\n .split(escComma).join(',')\n .split(escPeriod).join('.');\n}\n\n\n// Basically just str.split(\",\"), but handling cases\n// where we have nested braced sections, which should be\n// treated as individual members, like {a,{b,c},d}\nfunction parseCommaParts(str) {\n if (!str)\n return [''];\n\n var parts = [];\n var m = balanced('{', '}', str);\n\n if (!m)\n return str.split(',');\n\n var pre = m.pre;\n var body = m.body;\n var post = m.post;\n var p = pre.split(',');\n\n p[p.length-1] += '{' + body + '}';\n var postParts = parseCommaParts(post);\n if (post.length) {\n p[p.length-1] += postParts.shift();\n p.push.apply(p, postParts);\n }\n\n parts.push.apply(parts, p);\n\n return parts;\n}\n\nfunction expandTop(str) {\n if (!str)\n return [];\n\n // I don't know why Bash 4.3 does this, but it does.\n // Anything starting with {} will have the first two bytes preserved\n // but *only* at the top level, so {},a}b will not expand to anything,\n // but a{},b}c will be expanded to [a}c,abc].\n // One could argue that this is a bug in Bash, but since the goal of\n // this module is to match Bash's rules, we escape a leading {}\n if (str.substr(0, 2) === '{}') {\n str = '\\\\{\\\\}' + str.substr(2);\n }\n\n return expand(escapeBraces(str), true).map(unescapeBraces);\n}\n\nfunction embrace(str) {\n return '{' + str + '}';\n}\nfunction isPadded(el) {\n return /^-?0\\d/.test(el);\n}\n\nfunction lte(i, y) {\n return i <= y;\n}\nfunction gte(i, y) {\n return i >= y;\n}\n\nfunction expand(str, isTop) {\n var expansions = [];\n\n var m = balanced('{', '}', str);\n if (!m) return [str];\n\n // no need to expand pre, since it is guaranteed to be free of brace-sets\n var pre = m.pre;\n var post = m.post.length\n ? expand(m.post, false)\n : [''];\n\n if (/\\$$/.test(m.pre)) { \n for (var k = 0; k < post.length; k++) {\n var expansion = pre+ '{' + m.body + '}' + post[k];\n expansions.push(expansion);\n }\n } else {\n var isNumericSequence = /^-?\\d+\\.\\.-?\\d+(?:\\.\\.-?\\d+)?$/.test(m.body);\n var isAlphaSequence = /^[a-zA-Z]\\.\\.[a-zA-Z](?:\\.\\.-?\\d+)?$/.test(m.body);\n var isSequence = isNumericSequence || isAlphaSequence;\n var isOptions = m.body.indexOf(',') >= 0;\n if (!isSequence && !isOptions) {\n // {a},b}\n if (m.post.match(/,.*\\}/)) {\n str = m.pre + '{' + m.body + escClose + m.post;\n return expand(str);\n }\n return [str];\n }\n\n var n;\n if (isSequence) {\n n = m.body.split(/\\.\\./);\n } else {\n n = parseCommaParts(m.body);\n if (n.length === 1) {\n // x{{a,b}}y ==> x{a}y x{b}y\n n = expand(n[0], false).map(embrace);\n if (n.length === 1) {\n return post.map(function(p) {\n return m.pre + n[0] + p;\n });\n }\n }\n }\n\n // at this point, n is the parts, and we know it's not a comma set\n // with a single entry.\n var N;\n\n if (isSequence) {\n var x = numeric(n[0]);\n var y = numeric(n[1]);\n var width = Math.max(n[0].length, n[1].length)\n var incr = n.length == 3\n ? Math.abs(numeric(n[2]))\n : 1;\n var test = lte;\n var reverse = y < x;\n if (reverse) {\n incr *= -1;\n test = gte;\n }\n var pad = n.some(isPadded);\n\n N = [];\n\n for (var i = x; test(i, y); i += incr) {\n var c;\n if (isAlphaSequence) {\n c = String.fromCharCode(i);\n if (c === '\\\\')\n c = '';\n } else {\n c = String(i);\n if (pad) {\n var need = width - c.length;\n if (need > 0) {\n var z = new Array(need + 1).join('0');\n if (i < 0)\n c = '-' + z + c.slice(1);\n else\n c = z + c;\n }\n }\n }\n N.push(c);\n }\n } else {\n N = [];\n\n for (var j = 0; j < n.length; j++) {\n N.push.apply(N, expand(n[j], false));\n }\n }\n\n for (var j = 0; j < N.length; j++) {\n for (var k = 0; k < post.length; k++) {\n var expansion = pre + N[j] + post[k];\n if (!isTop || isSequence || expansion)\n expansions.push(expansion);\n }\n }\n }\n\n return expansions;\n}\n\n","/*!\n * is-extglob \n *\n * Copyright (c) 2014-2016, Jon Schlinkert.\n * Licensed under the MIT License.\n */\n\nmodule.exports = function isExtglob(str) {\n if (typeof str !== 'string' || str === '') {\n return false;\n }\n\n var match;\n while ((match = /(\\\\).|([@?!+*]\\(.*\\))/g.exec(str))) {\n if (match[2]) return true;\n str = str.slice(match.index + match[0].length);\n }\n\n return false;\n};\n","/*!\n * is-glob \n *\n * Copyright (c) 2014-2017, Jon Schlinkert.\n * Released under the MIT License.\n */\n\nvar isExtglob = require('is-extglob');\nvar chars = { '{': '}', '(': ')', '[': ']'};\nvar strictCheck = function(str) {\n if (str[0] === '!') {\n return true;\n }\n var index = 0;\n var pipeIndex = -2;\n var closeSquareIndex = -2;\n var closeCurlyIndex = -2;\n var closeParenIndex = -2;\n var backSlashIndex = -2;\n while (index < str.length) {\n if (str[index] === '*') {\n return true;\n }\n\n if (str[index + 1] === '?' && /[\\].+)]/.test(str[index])) {\n return true;\n }\n\n if (closeSquareIndex !== -1 && str[index] === '[' && str[index + 1] !== ']') {\n if (closeSquareIndex < index) {\n closeSquareIndex = str.indexOf(']', index);\n }\n if (closeSquareIndex > index) {\n if (backSlashIndex === -1 || backSlashIndex > closeSquareIndex) {\n return true;\n }\n backSlashIndex = str.indexOf('\\\\', index);\n if (backSlashIndex === -1 || backSlashIndex > closeSquareIndex) {\n return true;\n }\n }\n }\n\n if (closeCurlyIndex !== -1 && str[index] === '{' && str[index + 1] !== '}') {\n closeCurlyIndex = str.indexOf('}', index);\n if (closeCurlyIndex > index) {\n backSlashIndex = str.indexOf('\\\\', index);\n if (backSlashIndex === -1 || backSlashIndex > closeCurlyIndex) {\n return true;\n }\n }\n }\n\n if (closeParenIndex !== -1 && str[index] === '(' && str[index + 1] === '?' && /[:!=]/.test(str[index + 2]) && str[index + 3] !== ')') {\n closeParenIndex = str.indexOf(')', index);\n if (closeParenIndex > index) {\n backSlashIndex = str.indexOf('\\\\', index);\n if (backSlashIndex === -1 || backSlashIndex > closeParenIndex) {\n return true;\n }\n }\n }\n\n if (pipeIndex !== -1 && str[index] === '(' && str[index + 1] !== '|') {\n if (pipeIndex < index) {\n pipeIndex = str.indexOf('|', index);\n }\n if (pipeIndex !== -1 && str[pipeIndex + 1] !== ')') {\n closeParenIndex = str.indexOf(')', pipeIndex);\n if (closeParenIndex > pipeIndex) {\n backSlashIndex = str.indexOf('\\\\', pipeIndex);\n if (backSlashIndex === -1 || backSlashIndex > closeParenIndex) {\n return true;\n }\n }\n }\n }\n\n if (str[index] === '\\\\') {\n var open = str[index + 1];\n index += 2;\n var close = chars[open];\n\n if (close) {\n var n = str.indexOf(close, index);\n if (n !== -1) {\n index = n + 1;\n }\n }\n\n if (str[index] === '!') {\n return true;\n }\n } else {\n index++;\n }\n }\n return false;\n};\n\nvar relaxedCheck = function(str) {\n if (str[0] === '!') {\n return true;\n }\n var index = 0;\n while (index < str.length) {\n if (/[*?{}()[\\]]/.test(str[index])) {\n return true;\n }\n\n if (str[index] === '\\\\') {\n var open = str[index + 1];\n index += 2;\n var close = chars[open];\n\n if (close) {\n var n = str.indexOf(close, index);\n if (n !== -1) {\n index = n + 1;\n }\n }\n\n if (str[index] === '!') {\n return true;\n }\n } else {\n index++;\n }\n }\n return false;\n};\n\nmodule.exports = function isGlob(str, options) {\n if (typeof str !== 'string' || str === '') {\n return false;\n }\n\n if (isExtglob(str)) {\n return true;\n }\n\n var check = strictCheck;\n\n // optionally relax check\n if (options && options.strict === false) {\n check = relaxedCheck;\n }\n\n return check(str);\n};\n","var getNative = require('./_getNative'),\n root = require('./_root');\n\n/* Built-in method references that are verified to be native. */\nvar DataView = getNative(root, 'DataView');\n\nmodule.exports = DataView;\n","var hashClear = require('./_hashClear'),\n hashDelete = require('./_hashDelete'),\n hashGet = require('./_hashGet'),\n hashHas = require('./_hashHas'),\n hashSet = require('./_hashSet');\n\n/**\n * Creates a hash object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction Hash(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n}\n\n// Add methods to `Hash`.\nHash.prototype.clear = hashClear;\nHash.prototype['delete'] = hashDelete;\nHash.prototype.get = hashGet;\nHash.prototype.has = hashHas;\nHash.prototype.set = hashSet;\n\nmodule.exports = Hash;\n","var listCacheClear = require('./_listCacheClear'),\n listCacheDelete = require('./_listCacheDelete'),\n listCacheGet = require('./_listCacheGet'),\n listCacheHas = require('./_listCacheHas'),\n listCacheSet = require('./_listCacheSet');\n\n/**\n * Creates an list cache object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction ListCache(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n}\n\n// Add methods to `ListCache`.\nListCache.prototype.clear = listCacheClear;\nListCache.prototype['delete'] = listCacheDelete;\nListCache.prototype.get = listCacheGet;\nListCache.prototype.has = listCacheHas;\nListCache.prototype.set = listCacheSet;\n\nmodule.exports = ListCache;\n","var getNative = require('./_getNative'),\n root = require('./_root');\n\n/* Built-in method references that are verified to be native. */\nvar Map = getNative(root, 'Map');\n\nmodule.exports = Map;\n","var mapCacheClear = require('./_mapCacheClear'),\n mapCacheDelete = require('./_mapCacheDelete'),\n mapCacheGet = require('./_mapCacheGet'),\n mapCacheHas = require('./_mapCacheHas'),\n mapCacheSet = require('./_mapCacheSet');\n\n/**\n * Creates a map cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction MapCache(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n}\n\n// Add methods to `MapCache`.\nMapCache.prototype.clear = mapCacheClear;\nMapCache.prototype['delete'] = mapCacheDelete;\nMapCache.prototype.get = mapCacheGet;\nMapCache.prototype.has = mapCacheHas;\nMapCache.prototype.set = mapCacheSet;\n\nmodule.exports = MapCache;\n","var getNative = require('./_getNative'),\n root = require('./_root');\n\n/* Built-in method references that are verified to be native. */\nvar Promise = getNative(root, 'Promise');\n\nmodule.exports = Promise;\n","var getNative = require('./_getNative'),\n root = require('./_root');\n\n/* Built-in method references that are verified to be native. */\nvar Set = getNative(root, 'Set');\n\nmodule.exports = Set;\n","var MapCache = require('./_MapCache'),\n setCacheAdd = require('./_setCacheAdd'),\n setCacheHas = require('./_setCacheHas');\n\n/**\n *\n * Creates an array cache object to store unique values.\n *\n * @private\n * @constructor\n * @param {Array} [values] The values to cache.\n */\nfunction SetCache(values) {\n var index = -1,\n length = values == null ? 0 : values.length;\n\n this.__data__ = new MapCache;\n while (++index < length) {\n this.add(values[index]);\n }\n}\n\n// Add methods to `SetCache`.\nSetCache.prototype.add = SetCache.prototype.push = setCacheAdd;\nSetCache.prototype.has = setCacheHas;\n\nmodule.exports = SetCache;\n","var ListCache = require('./_ListCache'),\n stackClear = require('./_stackClear'),\n stackDelete = require('./_stackDelete'),\n stackGet = require('./_stackGet'),\n stackHas = require('./_stackHas'),\n stackSet = require('./_stackSet');\n\n/**\n * Creates a stack cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction Stack(entries) {\n var data = this.__data__ = new ListCache(entries);\n this.size = data.size;\n}\n\n// Add methods to `Stack`.\nStack.prototype.clear = stackClear;\nStack.prototype['delete'] = stackDelete;\nStack.prototype.get = stackGet;\nStack.prototype.has = stackHas;\nStack.prototype.set = stackSet;\n\nmodule.exports = Stack;\n","var root = require('./_root');\n\n/** Built-in value references. */\nvar Symbol = root.Symbol;\n\nmodule.exports = Symbol;\n","var root = require('./_root');\n\n/** Built-in value references. */\nvar Uint8Array = root.Uint8Array;\n\nmodule.exports = Uint8Array;\n","var getNative = require('./_getNative'),\n root = require('./_root');\n\n/* Built-in method references that are verified to be native. */\nvar WeakMap = getNative(root, 'WeakMap');\n\nmodule.exports = WeakMap;\n","/**\n * A faster alternative to `Function#apply`, this function invokes `func`\n * with the `this` binding of `thisArg` and the arguments of `args`.\n *\n * @private\n * @param {Function} func The function to invoke.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {Array} args The arguments to invoke `func` with.\n * @returns {*} Returns the result of `func`.\n */\nfunction apply(func, thisArg, args) {\n switch (args.length) {\n case 0: return func.call(thisArg);\n case 1: return func.call(thisArg, args[0]);\n case 2: return func.call(thisArg, args[0], args[1]);\n case 3: return func.call(thisArg, args[0], args[1], args[2]);\n }\n return func.apply(thisArg, args);\n}\n\nmodule.exports = apply;\n","/**\n * A specialized version of `_.forEach` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\nfunction arrayEach(array, iteratee) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (iteratee(array[index], index, array) === false) {\n break;\n }\n }\n return array;\n}\n\nmodule.exports = arrayEach;\n","/**\n * A specialized version of `_.filter` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n */\nfunction arrayFilter(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (predicate(value, index, array)) {\n result[resIndex++] = value;\n }\n }\n return result;\n}\n\nmodule.exports = arrayFilter;\n","var baseIndexOf = require('./_baseIndexOf');\n\n/**\n * A specialized version of `_.includes` for arrays without support for\n * specifying an index to search from.\n *\n * @private\n * @param {Array} [array] The array to inspect.\n * @param {*} target The value to search for.\n * @returns {boolean} Returns `true` if `target` is found, else `false`.\n */\nfunction arrayIncludes(array, value) {\n var length = array == null ? 0 : array.length;\n return !!length && baseIndexOf(array, value, 0) > -1;\n}\n\nmodule.exports = arrayIncludes;\n","/**\n * This function is like `arrayIncludes` except that it accepts a comparator.\n *\n * @private\n * @param {Array} [array] The array to inspect.\n * @param {*} target The value to search for.\n * @param {Function} comparator The comparator invoked per element.\n * @returns {boolean} Returns `true` if `target` is found, else `false`.\n */\nfunction arrayIncludesWith(array, value, comparator) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (comparator(value, array[index])) {\n return true;\n }\n }\n return false;\n}\n\nmodule.exports = arrayIncludesWith;\n","var baseTimes = require('./_baseTimes'),\n isArguments = require('./isArguments'),\n isArray = require('./isArray'),\n isBuffer = require('./isBuffer'),\n isIndex = require('./_isIndex'),\n isTypedArray = require('./isTypedArray');\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Creates an array of the enumerable property names of the array-like `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @param {boolean} inherited Specify returning inherited property names.\n * @returns {Array} Returns the array of property names.\n */\nfunction arrayLikeKeys(value, inherited) {\n var isArr = isArray(value),\n isArg = !isArr && isArguments(value),\n isBuff = !isArr && !isArg && isBuffer(value),\n isType = !isArr && !isArg && !isBuff && isTypedArray(value),\n skipIndexes = isArr || isArg || isBuff || isType,\n result = skipIndexes ? baseTimes(value.length, String) : [],\n length = result.length;\n\n for (var key in value) {\n if ((inherited || hasOwnProperty.call(value, key)) &&\n !(skipIndexes && (\n // Safari 9 has enumerable `arguments.length` in strict mode.\n key == 'length' ||\n // Node.js 0.10 has enumerable non-index properties on buffers.\n (isBuff && (key == 'offset' || key == 'parent')) ||\n // PhantomJS 2 has enumerable non-index properties on typed arrays.\n (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||\n // Skip index properties.\n isIndex(key, length)\n ))) {\n result.push(key);\n }\n }\n return result;\n}\n\nmodule.exports = arrayLikeKeys;\n","/**\n * A specialized version of `_.map` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n */\nfunction arrayMap(array, iteratee) {\n var index = -1,\n length = array == null ? 0 : array.length,\n result = Array(length);\n\n while (++index < length) {\n result[index] = iteratee(array[index], index, array);\n }\n return result;\n}\n\nmodule.exports = arrayMap;\n","/**\n * Appends the elements of `values` to `array`.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {Array} values The values to append.\n * @returns {Array} Returns `array`.\n */\nfunction arrayPush(array, values) {\n var index = -1,\n length = values.length,\n offset = array.length;\n\n while (++index < length) {\n array[offset + index] = values[index];\n }\n return array;\n}\n\nmodule.exports = arrayPush;\n","/**\n * A specialized version of `_.some` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n */\nfunction arraySome(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (predicate(array[index], index, array)) {\n return true;\n }\n }\n return false;\n}\n\nmodule.exports = arraySome;\n","/**\n * Converts an ASCII `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\nfunction asciiToArray(string) {\n return string.split('');\n}\n\nmodule.exports = asciiToArray;\n","var baseAssignValue = require('./_baseAssignValue'),\n eq = require('./eq');\n\n/**\n * This function is like `assignValue` except that it doesn't assign\n * `undefined` values.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\nfunction assignMergeValue(object, key, value) {\n if ((value !== undefined && !eq(object[key], value)) ||\n (value === undefined && !(key in object))) {\n baseAssignValue(object, key, value);\n }\n}\n\nmodule.exports = assignMergeValue;\n","var baseAssignValue = require('./_baseAssignValue'),\n eq = require('./eq');\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Assigns `value` to `key` of `object` if the existing value is not equivalent\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\nfunction assignValue(object, key, value) {\n var objValue = object[key];\n if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||\n (value === undefined && !(key in object))) {\n baseAssignValue(object, key, value);\n }\n}\n\nmodule.exports = assignValue;\n","var eq = require('./eq');\n\n/**\n * Gets the index at which the `key` is found in `array` of key-value pairs.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} key The key to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\nfunction assocIndexOf(array, key) {\n var length = array.length;\n while (length--) {\n if (eq(array[length][0], key)) {\n return length;\n }\n }\n return -1;\n}\n\nmodule.exports = assocIndexOf;\n","var copyObject = require('./_copyObject'),\n keys = require('./keys');\n\n/**\n * The base implementation of `_.assign` without support for multiple sources\n * or `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @returns {Object} Returns `object`.\n */\nfunction baseAssign(object, source) {\n return object && copyObject(source, keys(source), object);\n}\n\nmodule.exports = baseAssign;\n","var copyObject = require('./_copyObject'),\n keysIn = require('./keysIn');\n\n/**\n * The base implementation of `_.assignIn` without support for multiple sources\n * or `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @returns {Object} Returns `object`.\n */\nfunction baseAssignIn(object, source) {\n return object && copyObject(source, keysIn(source), object);\n}\n\nmodule.exports = baseAssignIn;\n","var defineProperty = require('./_defineProperty');\n\n/**\n * The base implementation of `assignValue` and `assignMergeValue` without\n * value checks.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\nfunction baseAssignValue(object, key, value) {\n if (key == '__proto__' && defineProperty) {\n defineProperty(object, key, {\n 'configurable': true,\n 'enumerable': true,\n 'value': value,\n 'writable': true\n });\n } else {\n object[key] = value;\n }\n}\n\nmodule.exports = baseAssignValue;\n","var get = require('./get');\n\n/**\n * The base implementation of `_.at` without support for individual paths.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {string[]} paths The property paths to pick.\n * @returns {Array} Returns the picked elements.\n */\nfunction baseAt(object, paths) {\n var index = -1,\n length = paths.length,\n result = Array(length),\n skip = object == null;\n\n while (++index < length) {\n result[index] = skip ? undefined : get(object, paths[index]);\n }\n return result;\n}\n\nmodule.exports = baseAt;\n","var Stack = require('./_Stack'),\n arrayEach = require('./_arrayEach'),\n assignValue = require('./_assignValue'),\n baseAssign = require('./_baseAssign'),\n baseAssignIn = require('./_baseAssignIn'),\n cloneBuffer = require('./_cloneBuffer'),\n copyArray = require('./_copyArray'),\n copySymbols = require('./_copySymbols'),\n copySymbolsIn = require('./_copySymbolsIn'),\n getAllKeys = require('./_getAllKeys'),\n getAllKeysIn = require('./_getAllKeysIn'),\n getTag = require('./_getTag'),\n initCloneArray = require('./_initCloneArray'),\n initCloneByTag = require('./_initCloneByTag'),\n initCloneObject = require('./_initCloneObject'),\n isArray = require('./isArray'),\n isBuffer = require('./isBuffer'),\n isMap = require('./isMap'),\n isObject = require('./isObject'),\n isSet = require('./isSet'),\n keys = require('./keys'),\n keysIn = require('./keysIn');\n\n/** Used to compose bitmasks for cloning. */\nvar CLONE_DEEP_FLAG = 1,\n CLONE_FLAT_FLAG = 2,\n CLONE_SYMBOLS_FLAG = 4;\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]',\n arrayTag = '[object Array]',\n boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n errorTag = '[object Error]',\n funcTag = '[object Function]',\n genTag = '[object GeneratorFunction]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n objectTag = '[object Object]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n symbolTag = '[object Symbol]',\n weakMapTag = '[object WeakMap]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n dataViewTag = '[object DataView]',\n float32Tag = '[object Float32Array]',\n float64Tag = '[object Float64Array]',\n int8Tag = '[object Int8Array]',\n int16Tag = '[object Int16Array]',\n int32Tag = '[object Int32Array]',\n uint8Tag = '[object Uint8Array]',\n uint8ClampedTag = '[object Uint8ClampedArray]',\n uint16Tag = '[object Uint16Array]',\n uint32Tag = '[object Uint32Array]';\n\n/** Used to identify `toStringTag` values supported by `_.clone`. */\nvar cloneableTags = {};\ncloneableTags[argsTag] = cloneableTags[arrayTag] =\ncloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =\ncloneableTags[boolTag] = cloneableTags[dateTag] =\ncloneableTags[float32Tag] = cloneableTags[float64Tag] =\ncloneableTags[int8Tag] = cloneableTags[int16Tag] =\ncloneableTags[int32Tag] = cloneableTags[mapTag] =\ncloneableTags[numberTag] = cloneableTags[objectTag] =\ncloneableTags[regexpTag] = cloneableTags[setTag] =\ncloneableTags[stringTag] = cloneableTags[symbolTag] =\ncloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =\ncloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;\ncloneableTags[errorTag] = cloneableTags[funcTag] =\ncloneableTags[weakMapTag] = false;\n\n/**\n * The base implementation of `_.clone` and `_.cloneDeep` which tracks\n * traversed objects.\n *\n * @private\n * @param {*} value The value to clone.\n * @param {boolean} bitmask The bitmask flags.\n * 1 - Deep clone\n * 2 - Flatten inherited properties\n * 4 - Clone symbols\n * @param {Function} [customizer] The function to customize cloning.\n * @param {string} [key] The key of `value`.\n * @param {Object} [object] The parent object of `value`.\n * @param {Object} [stack] Tracks traversed objects and their clone counterparts.\n * @returns {*} Returns the cloned value.\n */\nfunction baseClone(value, bitmask, customizer, key, object, stack) {\n var result,\n isDeep = bitmask & CLONE_DEEP_FLAG,\n isFlat = bitmask & CLONE_FLAT_FLAG,\n isFull = bitmask & CLONE_SYMBOLS_FLAG;\n\n if (customizer) {\n result = object ? customizer(value, key, object, stack) : customizer(value);\n }\n if (result !== undefined) {\n return result;\n }\n if (!isObject(value)) {\n return value;\n }\n var isArr = isArray(value);\n if (isArr) {\n result = initCloneArray(value);\n if (!isDeep) {\n return copyArray(value, result);\n }\n } else {\n var tag = getTag(value),\n isFunc = tag == funcTag || tag == genTag;\n\n if (isBuffer(value)) {\n return cloneBuffer(value, isDeep);\n }\n if (tag == objectTag || tag == argsTag || (isFunc && !object)) {\n result = (isFlat || isFunc) ? {} : initCloneObject(value);\n if (!isDeep) {\n return isFlat\n ? copySymbolsIn(value, baseAssignIn(result, value))\n : copySymbols(value, baseAssign(result, value));\n }\n } else {\n if (!cloneableTags[tag]) {\n return object ? value : {};\n }\n result = initCloneByTag(value, tag, isDeep);\n }\n }\n // Check for circular references and return its corresponding clone.\n stack || (stack = new Stack);\n var stacked = stack.get(value);\n if (stacked) {\n return stacked;\n }\n stack.set(value, result);\n\n if (isSet(value)) {\n value.forEach(function(subValue) {\n result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack));\n });\n } else if (isMap(value)) {\n value.forEach(function(subValue, key) {\n result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack));\n });\n }\n\n var keysFunc = isFull\n ? (isFlat ? getAllKeysIn : getAllKeys)\n : (isFlat ? keysIn : keys);\n\n var props = isArr ? undefined : keysFunc(value);\n arrayEach(props || value, function(subValue, key) {\n if (props) {\n key = subValue;\n subValue = value[key];\n }\n // Recursively populate clone (susceptible to call stack limits).\n assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));\n });\n return result;\n}\n\nmodule.exports = baseClone;\n","var isObject = require('./isObject');\n\n/** Built-in value references. */\nvar objectCreate = Object.create;\n\n/**\n * The base implementation of `_.create` without support for assigning\n * properties to the created object.\n *\n * @private\n * @param {Object} proto The object to inherit from.\n * @returns {Object} Returns the new object.\n */\nvar baseCreate = (function() {\n function object() {}\n return function(proto) {\n if (!isObject(proto)) {\n return {};\n }\n if (objectCreate) {\n return objectCreate(proto);\n }\n object.prototype = proto;\n var result = new object;\n object.prototype = undefined;\n return result;\n };\n}());\n\nmodule.exports = baseCreate;\n","var SetCache = require('./_SetCache'),\n arrayIncludes = require('./_arrayIncludes'),\n arrayIncludesWith = require('./_arrayIncludesWith'),\n arrayMap = require('./_arrayMap'),\n baseUnary = require('./_baseUnary'),\n cacheHas = require('./_cacheHas');\n\n/** Used as the size to enable large array optimizations. */\nvar LARGE_ARRAY_SIZE = 200;\n\n/**\n * The base implementation of methods like `_.difference` without support\n * for excluding multiple arrays or iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Array} values The values to exclude.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n */\nfunction baseDifference(array, values, iteratee, comparator) {\n var index = -1,\n includes = arrayIncludes,\n isCommon = true,\n length = array.length,\n result = [],\n valuesLength = values.length;\n\n if (!length) {\n return result;\n }\n if (iteratee) {\n values = arrayMap(values, baseUnary(iteratee));\n }\n if (comparator) {\n includes = arrayIncludesWith;\n isCommon = false;\n }\n else if (values.length >= LARGE_ARRAY_SIZE) {\n includes = cacheHas;\n isCommon = false;\n values = new SetCache(values);\n }\n outer:\n while (++index < length) {\n var value = array[index],\n computed = iteratee == null ? value : iteratee(value);\n\n value = (comparator || value !== 0) ? value : 0;\n if (isCommon && computed === computed) {\n var valuesIndex = valuesLength;\n while (valuesIndex--) {\n if (values[valuesIndex] === computed) {\n continue outer;\n }\n }\n result.push(value);\n }\n else if (!includes(values, computed, comparator)) {\n result.push(value);\n }\n }\n return result;\n}\n\nmodule.exports = baseDifference;\n","var baseForOwn = require('./_baseForOwn'),\n createBaseEach = require('./_createBaseEach');\n\n/**\n * The base implementation of `_.forEach` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n */\nvar baseEach = createBaseEach(baseForOwn);\n\nmodule.exports = baseEach;\n","var baseEach = require('./_baseEach');\n\n/**\n * The base implementation of `_.filter` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n */\nfunction baseFilter(collection, predicate) {\n var result = [];\n baseEach(collection, function(value, index, collection) {\n if (predicate(value, index, collection)) {\n result.push(value);\n }\n });\n return result;\n}\n\nmodule.exports = baseFilter;\n","/**\n * The base implementation of `_.findIndex` and `_.findLastIndex` without\n * support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} predicate The function invoked per iteration.\n * @param {number} fromIndex The index to search from.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\nfunction baseFindIndex(array, predicate, fromIndex, fromRight) {\n var length = array.length,\n index = fromIndex + (fromRight ? 1 : -1);\n\n while ((fromRight ? index-- : ++index < length)) {\n if (predicate(array[index], index, array)) {\n return index;\n }\n }\n return -1;\n}\n\nmodule.exports = baseFindIndex;\n","var arrayPush = require('./_arrayPush'),\n isFlattenable = require('./_isFlattenable');\n\n/**\n * The base implementation of `_.flatten` with support for restricting flattening.\n *\n * @private\n * @param {Array} array The array to flatten.\n * @param {number} depth The maximum recursion depth.\n * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.\n * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.\n * @param {Array} [result=[]] The initial result value.\n * @returns {Array} Returns the new flattened array.\n */\nfunction baseFlatten(array, depth, predicate, isStrict, result) {\n var index = -1,\n length = array.length;\n\n predicate || (predicate = isFlattenable);\n result || (result = []);\n\n while (++index < length) {\n var value = array[index];\n if (depth > 0 && predicate(value)) {\n if (depth > 1) {\n // Recursively flatten arrays (susceptible to call stack limits).\n baseFlatten(value, depth - 1, predicate, isStrict, result);\n } else {\n arrayPush(result, value);\n }\n } else if (!isStrict) {\n result[result.length] = value;\n }\n }\n return result;\n}\n\nmodule.exports = baseFlatten;\n","var createBaseFor = require('./_createBaseFor');\n\n/**\n * The base implementation of `baseForOwn` which iterates over `object`\n * properties returned by `keysFunc` and invokes `iteratee` for each property.\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\nvar baseFor = createBaseFor();\n\nmodule.exports = baseFor;\n","var baseFor = require('./_baseFor'),\n keys = require('./keys');\n\n/**\n * The base implementation of `_.forOwn` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Object} Returns `object`.\n */\nfunction baseForOwn(object, iteratee) {\n return object && baseFor(object, iteratee, keys);\n}\n\nmodule.exports = baseForOwn;\n","var arrayFilter = require('./_arrayFilter'),\n isFunction = require('./isFunction');\n\n/**\n * The base implementation of `_.functions` which creates an array of\n * `object` function property names filtered from `props`.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Array} props The property names to filter.\n * @returns {Array} Returns the function names.\n */\nfunction baseFunctions(object, props) {\n return arrayFilter(props, function(key) {\n return isFunction(object[key]);\n });\n}\n\nmodule.exports = baseFunctions;\n","var castPath = require('./_castPath'),\n toKey = require('./_toKey');\n\n/**\n * The base implementation of `_.get` without support for default values.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @returns {*} Returns the resolved value.\n */\nfunction baseGet(object, path) {\n path = castPath(path, object);\n\n var index = 0,\n length = path.length;\n\n while (object != null && index < length) {\n object = object[toKey(path[index++])];\n }\n return (index && index == length) ? object : undefined;\n}\n\nmodule.exports = baseGet;\n","var arrayPush = require('./_arrayPush'),\n isArray = require('./isArray');\n\n/**\n * The base implementation of `getAllKeys` and `getAllKeysIn` which uses\n * `keysFunc` and `symbolsFunc` to get the enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @param {Function} symbolsFunc The function to get the symbols of `object`.\n * @returns {Array} Returns the array of property names and symbols.\n */\nfunction baseGetAllKeys(object, keysFunc, symbolsFunc) {\n var result = keysFunc(object);\n return isArray(object) ? result : arrayPush(result, symbolsFunc(object));\n}\n\nmodule.exports = baseGetAllKeys;\n","var Symbol = require('./_Symbol'),\n getRawTag = require('./_getRawTag'),\n objectToString = require('./_objectToString');\n\n/** `Object#toString` result references. */\nvar nullTag = '[object Null]',\n undefinedTag = '[object Undefined]';\n\n/** Built-in value references. */\nvar symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n/**\n * The base implementation of `getTag` without fallbacks for buggy environments.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\nfunction baseGetTag(value) {\n if (value == null) {\n return value === undefined ? undefinedTag : nullTag;\n }\n return (symToStringTag && symToStringTag in Object(value))\n ? getRawTag(value)\n : objectToString(value);\n}\n\nmodule.exports = baseGetTag;\n","/**\n * The base implementation of `_.hasIn` without support for deep paths.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {Array|string} key The key to check.\n * @returns {boolean} Returns `true` if `key` exists, else `false`.\n */\nfunction baseHasIn(object, key) {\n return object != null && key in Object(object);\n}\n\nmodule.exports = baseHasIn;\n","var baseFindIndex = require('./_baseFindIndex'),\n baseIsNaN = require('./_baseIsNaN'),\n strictIndexOf = require('./_strictIndexOf');\n\n/**\n * The base implementation of `_.indexOf` without `fromIndex` bounds checks.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\nfunction baseIndexOf(array, value, fromIndex) {\n return value === value\n ? strictIndexOf(array, value, fromIndex)\n : baseFindIndex(array, baseIsNaN, fromIndex);\n}\n\nmodule.exports = baseIndexOf;\n","var baseGetTag = require('./_baseGetTag'),\n isObjectLike = require('./isObjectLike');\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]';\n\n/**\n * The base implementation of `_.isArguments`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n */\nfunction baseIsArguments(value) {\n return isObjectLike(value) && baseGetTag(value) == argsTag;\n}\n\nmodule.exports = baseIsArguments;\n","var baseIsEqualDeep = require('./_baseIsEqualDeep'),\n isObjectLike = require('./isObjectLike');\n\n/**\n * The base implementation of `_.isEqual` which supports partial comparisons\n * and tracks traversed objects.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {boolean} bitmask The bitmask flags.\n * 1 - Unordered comparison\n * 2 - Partial comparison\n * @param {Function} [customizer] The function to customize comparisons.\n * @param {Object} [stack] Tracks traversed `value` and `other` objects.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n */\nfunction baseIsEqual(value, other, bitmask, customizer, stack) {\n if (value === other) {\n return true;\n }\n if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {\n return value !== value && other !== other;\n }\n return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);\n}\n\nmodule.exports = baseIsEqual;\n","var Stack = require('./_Stack'),\n equalArrays = require('./_equalArrays'),\n equalByTag = require('./_equalByTag'),\n equalObjects = require('./_equalObjects'),\n getTag = require('./_getTag'),\n isArray = require('./isArray'),\n isBuffer = require('./isBuffer'),\n isTypedArray = require('./isTypedArray');\n\n/** Used to compose bitmasks for value comparisons. */\nvar COMPARE_PARTIAL_FLAG = 1;\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]',\n arrayTag = '[object Array]',\n objectTag = '[object Object]';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * A specialized version of `baseIsEqual` for arrays and objects which performs\n * deep comparisons and tracks traversed objects enabling objects with circular\n * references to be compared.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} [stack] Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {\n var objIsArr = isArray(object),\n othIsArr = isArray(other),\n objTag = objIsArr ? arrayTag : getTag(object),\n othTag = othIsArr ? arrayTag : getTag(other);\n\n objTag = objTag == argsTag ? objectTag : objTag;\n othTag = othTag == argsTag ? objectTag : othTag;\n\n var objIsObj = objTag == objectTag,\n othIsObj = othTag == objectTag,\n isSameTag = objTag == othTag;\n\n if (isSameTag && isBuffer(object)) {\n if (!isBuffer(other)) {\n return false;\n }\n objIsArr = true;\n objIsObj = false;\n }\n if (isSameTag && !objIsObj) {\n stack || (stack = new Stack);\n return (objIsArr || isTypedArray(object))\n ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)\n : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);\n }\n if (!(bitmask & COMPARE_PARTIAL_FLAG)) {\n var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),\n othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');\n\n if (objIsWrapped || othIsWrapped) {\n var objUnwrapped = objIsWrapped ? object.value() : object,\n othUnwrapped = othIsWrapped ? other.value() : other;\n\n stack || (stack = new Stack);\n return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);\n }\n }\n if (!isSameTag) {\n return false;\n }\n stack || (stack = new Stack);\n return equalObjects(object, other, bitmask, customizer, equalFunc, stack);\n}\n\nmodule.exports = baseIsEqualDeep;\n","var getTag = require('./_getTag'),\n isObjectLike = require('./isObjectLike');\n\n/** `Object#toString` result references. */\nvar mapTag = '[object Map]';\n\n/**\n * The base implementation of `_.isMap` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n */\nfunction baseIsMap(value) {\n return isObjectLike(value) && getTag(value) == mapTag;\n}\n\nmodule.exports = baseIsMap;\n","var Stack = require('./_Stack'),\n baseIsEqual = require('./_baseIsEqual');\n\n/** Used to compose bitmasks for value comparisons. */\nvar COMPARE_PARTIAL_FLAG = 1,\n COMPARE_UNORDERED_FLAG = 2;\n\n/**\n * The base implementation of `_.isMatch` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @param {Array} matchData The property names, values, and compare flags to match.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n */\nfunction baseIsMatch(object, source, matchData, customizer) {\n var index = matchData.length,\n length = index,\n noCustomizer = !customizer;\n\n if (object == null) {\n return !length;\n }\n object = Object(object);\n while (index--) {\n var data = matchData[index];\n if ((noCustomizer && data[2])\n ? data[1] !== object[data[0]]\n : !(data[0] in object)\n ) {\n return false;\n }\n }\n while (++index < length) {\n data = matchData[index];\n var key = data[0],\n objValue = object[key],\n srcValue = data[1];\n\n if (noCustomizer && data[2]) {\n if (objValue === undefined && !(key in object)) {\n return false;\n }\n } else {\n var stack = new Stack;\n if (customizer) {\n var result = customizer(objValue, srcValue, key, object, source, stack);\n }\n if (!(result === undefined\n ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack)\n : result\n )) {\n return false;\n }\n }\n }\n return true;\n}\n\nmodule.exports = baseIsMatch;\n","/**\n * The base implementation of `_.isNaN` without support for number objects.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n */\nfunction baseIsNaN(value) {\n return value !== value;\n}\n\nmodule.exports = baseIsNaN;\n","var isFunction = require('./isFunction'),\n isMasked = require('./_isMasked'),\n isObject = require('./isObject'),\n toSource = require('./_toSource');\n\n/**\n * Used to match `RegExp`\n * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).\n */\nvar reRegExpChar = /[\\\\^$.*+?()[\\]{}|]/g;\n\n/** Used to detect host constructors (Safari). */\nvar reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\n/** Used for built-in method references. */\nvar funcProto = Function.prototype,\n objectProto = Object.prototype;\n\n/** Used to resolve the decompiled source of functions. */\nvar funcToString = funcProto.toString;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/** Used to detect if a method is native. */\nvar reIsNative = RegExp('^' +\n funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\\\$&')\n .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n);\n\n/**\n * The base implementation of `_.isNative` without bad shim checks.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n */\nfunction baseIsNative(value) {\n if (!isObject(value) || isMasked(value)) {\n return false;\n }\n var pattern = isFunction(value) ? reIsNative : reIsHostCtor;\n return pattern.test(toSource(value));\n}\n\nmodule.exports = baseIsNative;\n","var getTag = require('./_getTag'),\n isObjectLike = require('./isObjectLike');\n\n/** `Object#toString` result references. */\nvar setTag = '[object Set]';\n\n/**\n * The base implementation of `_.isSet` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n */\nfunction baseIsSet(value) {\n return isObjectLike(value) && getTag(value) == setTag;\n}\n\nmodule.exports = baseIsSet;\n","var baseGetTag = require('./_baseGetTag'),\n isLength = require('./isLength'),\n isObjectLike = require('./isObjectLike');\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]',\n arrayTag = '[object Array]',\n boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n errorTag = '[object Error]',\n funcTag = '[object Function]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n objectTag = '[object Object]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n weakMapTag = '[object WeakMap]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n dataViewTag = '[object DataView]',\n float32Tag = '[object Float32Array]',\n float64Tag = '[object Float64Array]',\n int8Tag = '[object Int8Array]',\n int16Tag = '[object Int16Array]',\n int32Tag = '[object Int32Array]',\n uint8Tag = '[object Uint8Array]',\n uint8ClampedTag = '[object Uint8ClampedArray]',\n uint16Tag = '[object Uint16Array]',\n uint32Tag = '[object Uint32Array]';\n\n/** Used to identify `toStringTag` values of typed arrays. */\nvar typedArrayTags = {};\ntypedArrayTags[float32Tag] = typedArrayTags[float64Tag] =\ntypedArrayTags[int8Tag] = typedArrayTags[int16Tag] =\ntypedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =\ntypedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =\ntypedArrayTags[uint32Tag] = true;\ntypedArrayTags[argsTag] = typedArrayTags[arrayTag] =\ntypedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =\ntypedArrayTags[dataViewTag] = typedArrayTags[dateTag] =\ntypedArrayTags[errorTag] = typedArrayTags[funcTag] =\ntypedArrayTags[mapTag] = typedArrayTags[numberTag] =\ntypedArrayTags[objectTag] = typedArrayTags[regexpTag] =\ntypedArrayTags[setTag] = typedArrayTags[stringTag] =\ntypedArrayTags[weakMapTag] = false;\n\n/**\n * The base implementation of `_.isTypedArray` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n */\nfunction baseIsTypedArray(value) {\n return isObjectLike(value) &&\n isLength(value.length) && !!typedArrayTags[baseGetTag(value)];\n}\n\nmodule.exports = baseIsTypedArray;\n","var baseMatches = require('./_baseMatches'),\n baseMatchesProperty = require('./_baseMatchesProperty'),\n identity = require('./identity'),\n isArray = require('./isArray'),\n property = require('./property');\n\n/**\n * The base implementation of `_.iteratee`.\n *\n * @private\n * @param {*} [value=_.identity] The value to convert to an iteratee.\n * @returns {Function} Returns the iteratee.\n */\nfunction baseIteratee(value) {\n // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.\n // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.\n if (typeof value == 'function') {\n return value;\n }\n if (value == null) {\n return identity;\n }\n if (typeof value == 'object') {\n return isArray(value)\n ? baseMatchesProperty(value[0], value[1])\n : baseMatches(value);\n }\n return property(value);\n}\n\nmodule.exports = baseIteratee;\n","var isPrototype = require('./_isPrototype'),\n nativeKeys = require('./_nativeKeys');\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\nfunction baseKeys(object) {\n if (!isPrototype(object)) {\n return nativeKeys(object);\n }\n var result = [];\n for (var key in Object(object)) {\n if (hasOwnProperty.call(object, key) && key != 'constructor') {\n result.push(key);\n }\n }\n return result;\n}\n\nmodule.exports = baseKeys;\n","var isObject = require('./isObject'),\n isPrototype = require('./_isPrototype'),\n nativeKeysIn = require('./_nativeKeysIn');\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\nfunction baseKeysIn(object) {\n if (!isObject(object)) {\n return nativeKeysIn(object);\n }\n var isProto = isPrototype(object),\n result = [];\n\n for (var key in object) {\n if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {\n result.push(key);\n }\n }\n return result;\n}\n\nmodule.exports = baseKeysIn;\n","var baseEach = require('./_baseEach'),\n isArrayLike = require('./isArrayLike');\n\n/**\n * The base implementation of `_.map` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n */\nfunction baseMap(collection, iteratee) {\n var index = -1,\n result = isArrayLike(collection) ? Array(collection.length) : [];\n\n baseEach(collection, function(value, key, collection) {\n result[++index] = iteratee(value, key, collection);\n });\n return result;\n}\n\nmodule.exports = baseMap;\n","var baseIsMatch = require('./_baseIsMatch'),\n getMatchData = require('./_getMatchData'),\n matchesStrictComparable = require('./_matchesStrictComparable');\n\n/**\n * The base implementation of `_.matches` which doesn't clone `source`.\n *\n * @private\n * @param {Object} source The object of property values to match.\n * @returns {Function} Returns the new spec function.\n */\nfunction baseMatches(source) {\n var matchData = getMatchData(source);\n if (matchData.length == 1 && matchData[0][2]) {\n return matchesStrictComparable(matchData[0][0], matchData[0][1]);\n }\n return function(object) {\n return object === source || baseIsMatch(object, source, matchData);\n };\n}\n\nmodule.exports = baseMatches;\n","var baseIsEqual = require('./_baseIsEqual'),\n get = require('./get'),\n hasIn = require('./hasIn'),\n isKey = require('./_isKey'),\n isStrictComparable = require('./_isStrictComparable'),\n matchesStrictComparable = require('./_matchesStrictComparable'),\n toKey = require('./_toKey');\n\n/** Used to compose bitmasks for value comparisons. */\nvar COMPARE_PARTIAL_FLAG = 1,\n COMPARE_UNORDERED_FLAG = 2;\n\n/**\n * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.\n *\n * @private\n * @param {string} path The path of the property to get.\n * @param {*} srcValue The value to match.\n * @returns {Function} Returns the new spec function.\n */\nfunction baseMatchesProperty(path, srcValue) {\n if (isKey(path) && isStrictComparable(srcValue)) {\n return matchesStrictComparable(toKey(path), srcValue);\n }\n return function(object) {\n var objValue = get(object, path);\n return (objValue === undefined && objValue === srcValue)\n ? hasIn(object, path)\n : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG);\n };\n}\n\nmodule.exports = baseMatchesProperty;\n","var Stack = require('./_Stack'),\n assignMergeValue = require('./_assignMergeValue'),\n baseFor = require('./_baseFor'),\n baseMergeDeep = require('./_baseMergeDeep'),\n isObject = require('./isObject'),\n keysIn = require('./keysIn'),\n safeGet = require('./_safeGet');\n\n/**\n * The base implementation of `_.merge` without support for multiple sources.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {number} srcIndex The index of `source`.\n * @param {Function} [customizer] The function to customize merged values.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n */\nfunction baseMerge(object, source, srcIndex, customizer, stack) {\n if (object === source) {\n return;\n }\n baseFor(source, function(srcValue, key) {\n stack || (stack = new Stack);\n if (isObject(srcValue)) {\n baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);\n }\n else {\n var newValue = customizer\n ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack)\n : undefined;\n\n if (newValue === undefined) {\n newValue = srcValue;\n }\n assignMergeValue(object, key, newValue);\n }\n }, keysIn);\n}\n\nmodule.exports = baseMerge;\n","var assignMergeValue = require('./_assignMergeValue'),\n cloneBuffer = require('./_cloneBuffer'),\n cloneTypedArray = require('./_cloneTypedArray'),\n copyArray = require('./_copyArray'),\n initCloneObject = require('./_initCloneObject'),\n isArguments = require('./isArguments'),\n isArray = require('./isArray'),\n isArrayLikeObject = require('./isArrayLikeObject'),\n isBuffer = require('./isBuffer'),\n isFunction = require('./isFunction'),\n isObject = require('./isObject'),\n isPlainObject = require('./isPlainObject'),\n isTypedArray = require('./isTypedArray'),\n safeGet = require('./_safeGet'),\n toPlainObject = require('./toPlainObject');\n\n/**\n * A specialized version of `baseMerge` for arrays and objects which performs\n * deep merges and tracks traversed objects enabling objects with circular\n * references to be merged.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {string} key The key of the value to merge.\n * @param {number} srcIndex The index of `source`.\n * @param {Function} mergeFunc The function to merge values.\n * @param {Function} [customizer] The function to customize assigned values.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n */\nfunction baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {\n var objValue = safeGet(object, key),\n srcValue = safeGet(source, key),\n stacked = stack.get(srcValue);\n\n if (stacked) {\n assignMergeValue(object, key, stacked);\n return;\n }\n var newValue = customizer\n ? customizer(objValue, srcValue, (key + ''), object, source, stack)\n : undefined;\n\n var isCommon = newValue === undefined;\n\n if (isCommon) {\n var isArr = isArray(srcValue),\n isBuff = !isArr && isBuffer(srcValue),\n isTyped = !isArr && !isBuff && isTypedArray(srcValue);\n\n newValue = srcValue;\n if (isArr || isBuff || isTyped) {\n if (isArray(objValue)) {\n newValue = objValue;\n }\n else if (isArrayLikeObject(objValue)) {\n newValue = copyArray(objValue);\n }\n else if (isBuff) {\n isCommon = false;\n newValue = cloneBuffer(srcValue, true);\n }\n else if (isTyped) {\n isCommon = false;\n newValue = cloneTypedArray(srcValue, true);\n }\n else {\n newValue = [];\n }\n }\n else if (isPlainObject(srcValue) || isArguments(srcValue)) {\n newValue = objValue;\n if (isArguments(objValue)) {\n newValue = toPlainObject(objValue);\n }\n else if (!isObject(objValue) || isFunction(objValue)) {\n newValue = initCloneObject(srcValue);\n }\n }\n else {\n isCommon = false;\n }\n }\n if (isCommon) {\n // Recursively merge objects and arrays (susceptible to call stack limits).\n stack.set(srcValue, newValue);\n mergeFunc(newValue, srcValue, srcIndex, customizer, stack);\n stack['delete'](srcValue);\n }\n assignMergeValue(object, key, newValue);\n}\n\nmodule.exports = baseMergeDeep;\n","/**\n * The base implementation of `_.property` without support for deep paths.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @returns {Function} Returns the new accessor function.\n */\nfunction baseProperty(key) {\n return function(object) {\n return object == null ? undefined : object[key];\n };\n}\n\nmodule.exports = baseProperty;\n","var baseGet = require('./_baseGet');\n\n/**\n * A specialized version of `baseProperty` which supports deep paths.\n *\n * @private\n * @param {Array|string} path The path of the property to get.\n * @returns {Function} Returns the new accessor function.\n */\nfunction basePropertyDeep(path) {\n return function(object) {\n return baseGet(object, path);\n };\n}\n\nmodule.exports = basePropertyDeep;\n","var identity = require('./identity'),\n overRest = require('./_overRest'),\n setToString = require('./_setToString');\n\n/**\n * The base implementation of `_.rest` which doesn't validate or coerce arguments.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n */\nfunction baseRest(func, start) {\n return setToString(overRest(func, start, identity), func + '');\n}\n\nmodule.exports = baseRest;\n","var constant = require('./constant'),\n defineProperty = require('./_defineProperty'),\n identity = require('./identity');\n\n/**\n * The base implementation of `setToString` without support for hot loop shorting.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\nvar baseSetToString = !defineProperty ? identity : function(func, string) {\n return defineProperty(func, 'toString', {\n 'configurable': true,\n 'enumerable': false,\n 'value': constant(string),\n 'writable': true\n });\n};\n\nmodule.exports = baseSetToString;\n","/**\n * The base implementation of `_.slice` without an iteratee call guard.\n *\n * @private\n * @param {Array} array The array to slice.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the slice of `array`.\n */\nfunction baseSlice(array, start, end) {\n var index = -1,\n length = array.length;\n\n if (start < 0) {\n start = -start > length ? 0 : (length + start);\n }\n end = end > length ? length : end;\n if (end < 0) {\n end += length;\n }\n length = start > end ? 0 : ((end - start) >>> 0);\n start >>>= 0;\n\n var result = Array(length);\n while (++index < length) {\n result[index] = array[index + start];\n }\n return result;\n}\n\nmodule.exports = baseSlice;\n","/**\n * The base implementation of `_.times` without support for iteratee shorthands\n * or max array length checks.\n *\n * @private\n * @param {number} n The number of times to invoke `iteratee`.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the array of results.\n */\nfunction baseTimes(n, iteratee) {\n var index = -1,\n result = Array(n);\n\n while (++index < n) {\n result[index] = iteratee(index);\n }\n return result;\n}\n\nmodule.exports = baseTimes;\n","var Symbol = require('./_Symbol'),\n arrayMap = require('./_arrayMap'),\n isArray = require('./isArray'),\n isSymbol = require('./isSymbol');\n\n/** Used as references for various `Number` constants. */\nvar INFINITY = 1 / 0;\n\n/** Used to convert symbols to primitives and strings. */\nvar symbolProto = Symbol ? Symbol.prototype : undefined,\n symbolToString = symbolProto ? symbolProto.toString : undefined;\n\n/**\n * The base implementation of `_.toString` which doesn't convert nullish\n * values to empty strings.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {string} Returns the string.\n */\nfunction baseToString(value) {\n // Exit early for strings to avoid a performance hit in some environments.\n if (typeof value == 'string') {\n return value;\n }\n if (isArray(value)) {\n // Recursively convert values (susceptible to call stack limits).\n return arrayMap(value, baseToString) + '';\n }\n if (isSymbol(value)) {\n return symbolToString ? symbolToString.call(value) : '';\n }\n var result = (value + '');\n return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n}\n\nmodule.exports = baseToString;\n","var trimmedEndIndex = require('./_trimmedEndIndex');\n\n/** Used to match leading whitespace. */\nvar reTrimStart = /^\\s+/;\n\n/**\n * The base implementation of `_.trim`.\n *\n * @private\n * @param {string} string The string to trim.\n * @returns {string} Returns the trimmed string.\n */\nfunction baseTrim(string) {\n return string\n ? string.slice(0, trimmedEndIndex(string) + 1).replace(reTrimStart, '')\n : string;\n}\n\nmodule.exports = baseTrim;\n","/**\n * The base implementation of `_.unary` without support for storing metadata.\n *\n * @private\n * @param {Function} func The function to cap arguments for.\n * @returns {Function} Returns the new capped function.\n */\nfunction baseUnary(func) {\n return function(value) {\n return func(value);\n };\n}\n\nmodule.exports = baseUnary;\n","var arrayMap = require('./_arrayMap');\n\n/**\n * The base implementation of `_.values` and `_.valuesIn` which creates an\n * array of `object` property values corresponding to the property names\n * of `props`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} props The property names to get values for.\n * @returns {Object} Returns the array of property values.\n */\nfunction baseValues(object, props) {\n return arrayMap(props, function(key) {\n return object[key];\n });\n}\n\nmodule.exports = baseValues;\n","/**\n * Checks if a `cache` value for `key` exists.\n *\n * @private\n * @param {Object} cache The cache to query.\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction cacheHas(cache, key) {\n return cache.has(key);\n}\n\nmodule.exports = cacheHas;\n","var isArray = require('./isArray'),\n isKey = require('./_isKey'),\n stringToPath = require('./_stringToPath'),\n toString = require('./toString');\n\n/**\n * Casts `value` to a path array if it's not one.\n *\n * @private\n * @param {*} value The value to inspect.\n * @param {Object} [object] The object to query keys on.\n * @returns {Array} Returns the cast property path array.\n */\nfunction castPath(value, object) {\n if (isArray(value)) {\n return value;\n }\n return isKey(value, object) ? [value] : stringToPath(toString(value));\n}\n\nmodule.exports = castPath;\n","var baseSlice = require('./_baseSlice');\n\n/**\n * Casts `array` to a slice if it's needed.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {number} start The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the cast slice.\n */\nfunction castSlice(array, start, end) {\n var length = array.length;\n end = end === undefined ? length : end;\n return (!start && end >= length) ? array : baseSlice(array, start, end);\n}\n\nmodule.exports = castSlice;\n","var baseIndexOf = require('./_baseIndexOf');\n\n/**\n * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol\n * that is not found in the character symbols.\n *\n * @private\n * @param {Array} strSymbols The string symbols to inspect.\n * @param {Array} chrSymbols The character symbols to find.\n * @returns {number} Returns the index of the last unmatched string symbol.\n */\nfunction charsEndIndex(strSymbols, chrSymbols) {\n var index = strSymbols.length;\n\n while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}\n return index;\n}\n\nmodule.exports = charsEndIndex;\n","var baseIndexOf = require('./_baseIndexOf');\n\n/**\n * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol\n * that is not found in the character symbols.\n *\n * @private\n * @param {Array} strSymbols The string symbols to inspect.\n * @param {Array} chrSymbols The character symbols to find.\n * @returns {number} Returns the index of the first unmatched string symbol.\n */\nfunction charsStartIndex(strSymbols, chrSymbols) {\n var index = -1,\n length = strSymbols.length;\n\n while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}\n return index;\n}\n\nmodule.exports = charsStartIndex;\n","var Uint8Array = require('./_Uint8Array');\n\n/**\n * Creates a clone of `arrayBuffer`.\n *\n * @private\n * @param {ArrayBuffer} arrayBuffer The array buffer to clone.\n * @returns {ArrayBuffer} Returns the cloned array buffer.\n */\nfunction cloneArrayBuffer(arrayBuffer) {\n var result = new arrayBuffer.constructor(arrayBuffer.byteLength);\n new Uint8Array(result).set(new Uint8Array(arrayBuffer));\n return result;\n}\n\nmodule.exports = cloneArrayBuffer;\n","var root = require('./_root');\n\n/** Detect free variable `exports`. */\nvar freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n/** Detect free variable `module`. */\nvar freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n/** Detect the popular CommonJS extension `module.exports`. */\nvar moduleExports = freeModule && freeModule.exports === freeExports;\n\n/** Built-in value references. */\nvar Buffer = moduleExports ? root.Buffer : undefined,\n allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined;\n\n/**\n * Creates a clone of `buffer`.\n *\n * @private\n * @param {Buffer} buffer The buffer to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Buffer} Returns the cloned buffer.\n */\nfunction cloneBuffer(buffer, isDeep) {\n if (isDeep) {\n return buffer.slice();\n }\n var length = buffer.length,\n result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);\n\n buffer.copy(result);\n return result;\n}\n\nmodule.exports = cloneBuffer;\n","var cloneArrayBuffer = require('./_cloneArrayBuffer');\n\n/**\n * Creates a clone of `dataView`.\n *\n * @private\n * @param {Object} dataView The data view to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned data view.\n */\nfunction cloneDataView(dataView, isDeep) {\n var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;\n return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);\n}\n\nmodule.exports = cloneDataView;\n","/** Used to match `RegExp` flags from their coerced string values. */\nvar reFlags = /\\w*$/;\n\n/**\n * Creates a clone of `regexp`.\n *\n * @private\n * @param {Object} regexp The regexp to clone.\n * @returns {Object} Returns the cloned regexp.\n */\nfunction cloneRegExp(regexp) {\n var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));\n result.lastIndex = regexp.lastIndex;\n return result;\n}\n\nmodule.exports = cloneRegExp;\n","var Symbol = require('./_Symbol');\n\n/** Used to convert symbols to primitives and strings. */\nvar symbolProto = Symbol ? Symbol.prototype : undefined,\n symbolValueOf = symbolProto ? symbolProto.valueOf : undefined;\n\n/**\n * Creates a clone of the `symbol` object.\n *\n * @private\n * @param {Object} symbol The symbol object to clone.\n * @returns {Object} Returns the cloned symbol object.\n */\nfunction cloneSymbol(symbol) {\n return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};\n}\n\nmodule.exports = cloneSymbol;\n","var cloneArrayBuffer = require('./_cloneArrayBuffer');\n\n/**\n * Creates a clone of `typedArray`.\n *\n * @private\n * @param {Object} typedArray The typed array to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned typed array.\n */\nfunction cloneTypedArray(typedArray, isDeep) {\n var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;\n return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);\n}\n\nmodule.exports = cloneTypedArray;\n","/**\n * Copies the values of `source` to `array`.\n *\n * @private\n * @param {Array} source The array to copy values from.\n * @param {Array} [array=[]] The array to copy values to.\n * @returns {Array} Returns `array`.\n */\nfunction copyArray(source, array) {\n var index = -1,\n length = source.length;\n\n array || (array = Array(length));\n while (++index < length) {\n array[index] = source[index];\n }\n return array;\n}\n\nmodule.exports = copyArray;\n","var assignValue = require('./_assignValue'),\n baseAssignValue = require('./_baseAssignValue');\n\n/**\n * Copies properties of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy properties from.\n * @param {Array} props The property identifiers to copy.\n * @param {Object} [object={}] The object to copy properties to.\n * @param {Function} [customizer] The function to customize copied values.\n * @returns {Object} Returns `object`.\n */\nfunction copyObject(source, props, object, customizer) {\n var isNew = !object;\n object || (object = {});\n\n var index = -1,\n length = props.length;\n\n while (++index < length) {\n var key = props[index];\n\n var newValue = customizer\n ? customizer(object[key], source[key], key, object, source)\n : undefined;\n\n if (newValue === undefined) {\n newValue = source[key];\n }\n if (isNew) {\n baseAssignValue(object, key, newValue);\n } else {\n assignValue(object, key, newValue);\n }\n }\n return object;\n}\n\nmodule.exports = copyObject;\n","var copyObject = require('./_copyObject'),\n getSymbols = require('./_getSymbols');\n\n/**\n * Copies own symbols of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy symbols from.\n * @param {Object} [object={}] The object to copy symbols to.\n * @returns {Object} Returns `object`.\n */\nfunction copySymbols(source, object) {\n return copyObject(source, getSymbols(source), object);\n}\n\nmodule.exports = copySymbols;\n","var copyObject = require('./_copyObject'),\n getSymbolsIn = require('./_getSymbolsIn');\n\n/**\n * Copies own and inherited symbols of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy symbols from.\n * @param {Object} [object={}] The object to copy symbols to.\n * @returns {Object} Returns `object`.\n */\nfunction copySymbolsIn(source, object) {\n return copyObject(source, getSymbolsIn(source), object);\n}\n\nmodule.exports = copySymbolsIn;\n","var root = require('./_root');\n\n/** Used to detect overreaching core-js shims. */\nvar coreJsData = root['__core-js_shared__'];\n\nmodule.exports = coreJsData;\n","var baseRest = require('./_baseRest'),\n isIterateeCall = require('./_isIterateeCall');\n\n/**\n * Creates a function like `_.assign`.\n *\n * @private\n * @param {Function} assigner The function to assign values.\n * @returns {Function} Returns the new assigner function.\n */\nfunction createAssigner(assigner) {\n return baseRest(function(object, sources) {\n var index = -1,\n length = sources.length,\n customizer = length > 1 ? sources[length - 1] : undefined,\n guard = length > 2 ? sources[2] : undefined;\n\n customizer = (assigner.length > 3 && typeof customizer == 'function')\n ? (length--, customizer)\n : undefined;\n\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n customizer = length < 3 ? undefined : customizer;\n length = 1;\n }\n object = Object(object);\n while (++index < length) {\n var source = sources[index];\n if (source) {\n assigner(object, source, index, customizer);\n }\n }\n return object;\n });\n}\n\nmodule.exports = createAssigner;\n","var isArrayLike = require('./isArrayLike');\n\n/**\n * Creates a `baseEach` or `baseEachRight` function.\n *\n * @private\n * @param {Function} eachFunc The function to iterate over a collection.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\nfunction createBaseEach(eachFunc, fromRight) {\n return function(collection, iteratee) {\n if (collection == null) {\n return collection;\n }\n if (!isArrayLike(collection)) {\n return eachFunc(collection, iteratee);\n }\n var length = collection.length,\n index = fromRight ? length : -1,\n iterable = Object(collection);\n\n while ((fromRight ? index-- : ++index < length)) {\n if (iteratee(iterable[index], index, iterable) === false) {\n break;\n }\n }\n return collection;\n };\n}\n\nmodule.exports = createBaseEach;\n","/**\n * Creates a base function for methods like `_.forIn` and `_.forOwn`.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\nfunction createBaseFor(fromRight) {\n return function(object, iteratee, keysFunc) {\n var index = -1,\n iterable = Object(object),\n props = keysFunc(object),\n length = props.length;\n\n while (length--) {\n var key = props[fromRight ? length : ++index];\n if (iteratee(iterable[key], key, iterable) === false) {\n break;\n }\n }\n return object;\n };\n}\n\nmodule.exports = createBaseFor;\n","var getNative = require('./_getNative');\n\nvar defineProperty = (function() {\n try {\n var func = getNative(Object, 'defineProperty');\n func({}, '', {});\n return func;\n } catch (e) {}\n}());\n\nmodule.exports = defineProperty;\n","var SetCache = require('./_SetCache'),\n arraySome = require('./_arraySome'),\n cacheHas = require('./_cacheHas');\n\n/** Used to compose bitmasks for value comparisons. */\nvar COMPARE_PARTIAL_FLAG = 1,\n COMPARE_UNORDERED_FLAG = 2;\n\n/**\n * A specialized version of `baseIsEqualDeep` for arrays with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Array} array The array to compare.\n * @param {Array} other The other array to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `array` and `other` objects.\n * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.\n */\nfunction equalArrays(array, other, bitmask, customizer, equalFunc, stack) {\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n arrLength = array.length,\n othLength = other.length;\n\n if (arrLength != othLength && !(isPartial && othLength > arrLength)) {\n return false;\n }\n // Check that cyclic values are equal.\n var arrStacked = stack.get(array);\n var othStacked = stack.get(other);\n if (arrStacked && othStacked) {\n return arrStacked == other && othStacked == array;\n }\n var index = -1,\n result = true,\n seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined;\n\n stack.set(array, other);\n stack.set(other, array);\n\n // Ignore non-index properties.\n while (++index < arrLength) {\n var arrValue = array[index],\n othValue = other[index];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, arrValue, index, other, array, stack)\n : customizer(arrValue, othValue, index, array, other, stack);\n }\n if (compared !== undefined) {\n if (compared) {\n continue;\n }\n result = false;\n break;\n }\n // Recursively compare arrays (susceptible to call stack limits).\n if (seen) {\n if (!arraySome(other, function(othValue, othIndex) {\n if (!cacheHas(seen, othIndex) &&\n (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {\n return seen.push(othIndex);\n }\n })) {\n result = false;\n break;\n }\n } else if (!(\n arrValue === othValue ||\n equalFunc(arrValue, othValue, bitmask, customizer, stack)\n )) {\n result = false;\n break;\n }\n }\n stack['delete'](array);\n stack['delete'](other);\n return result;\n}\n\nmodule.exports = equalArrays;\n","var Symbol = require('./_Symbol'),\n Uint8Array = require('./_Uint8Array'),\n eq = require('./eq'),\n equalArrays = require('./_equalArrays'),\n mapToArray = require('./_mapToArray'),\n setToArray = require('./_setToArray');\n\n/** Used to compose bitmasks for value comparisons. */\nvar COMPARE_PARTIAL_FLAG = 1,\n COMPARE_UNORDERED_FLAG = 2;\n\n/** `Object#toString` result references. */\nvar boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n errorTag = '[object Error]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n symbolTag = '[object Symbol]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n dataViewTag = '[object DataView]';\n\n/** Used to convert symbols to primitives and strings. */\nvar symbolProto = Symbol ? Symbol.prototype : undefined,\n symbolValueOf = symbolProto ? symbolProto.valueOf : undefined;\n\n/**\n * A specialized version of `baseIsEqualDeep` for comparing objects of\n * the same `toStringTag`.\n *\n * **Note:** This function only supports comparing values with tags of\n * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {string} tag The `toStringTag` of the objects to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {\n switch (tag) {\n case dataViewTag:\n if ((object.byteLength != other.byteLength) ||\n (object.byteOffset != other.byteOffset)) {\n return false;\n }\n object = object.buffer;\n other = other.buffer;\n\n case arrayBufferTag:\n if ((object.byteLength != other.byteLength) ||\n !equalFunc(new Uint8Array(object), new Uint8Array(other))) {\n return false;\n }\n return true;\n\n case boolTag:\n case dateTag:\n case numberTag:\n // Coerce booleans to `1` or `0` and dates to milliseconds.\n // Invalid dates are coerced to `NaN`.\n return eq(+object, +other);\n\n case errorTag:\n return object.name == other.name && object.message == other.message;\n\n case regexpTag:\n case stringTag:\n // Coerce regexes to strings and treat strings, primitives and objects,\n // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring\n // for more details.\n return object == (other + '');\n\n case mapTag:\n var convert = mapToArray;\n\n case setTag:\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG;\n convert || (convert = setToArray);\n\n if (object.size != other.size && !isPartial) {\n return false;\n }\n // Assume cyclic values are equal.\n var stacked = stack.get(object);\n if (stacked) {\n return stacked == other;\n }\n bitmask |= COMPARE_UNORDERED_FLAG;\n\n // Recursively compare objects (susceptible to call stack limits).\n stack.set(object, other);\n var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);\n stack['delete'](object);\n return result;\n\n case symbolTag:\n if (symbolValueOf) {\n return symbolValueOf.call(object) == symbolValueOf.call(other);\n }\n }\n return false;\n}\n\nmodule.exports = equalByTag;\n","var getAllKeys = require('./_getAllKeys');\n\n/** Used to compose bitmasks for value comparisons. */\nvar COMPARE_PARTIAL_FLAG = 1;\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * A specialized version of `baseIsEqualDeep` for objects with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction equalObjects(object, other, bitmask, customizer, equalFunc, stack) {\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n objProps = getAllKeys(object),\n objLength = objProps.length,\n othProps = getAllKeys(other),\n othLength = othProps.length;\n\n if (objLength != othLength && !isPartial) {\n return false;\n }\n var index = objLength;\n while (index--) {\n var key = objProps[index];\n if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {\n return false;\n }\n }\n // Check that cyclic values are equal.\n var objStacked = stack.get(object);\n var othStacked = stack.get(other);\n if (objStacked && othStacked) {\n return objStacked == other && othStacked == object;\n }\n var result = true;\n stack.set(object, other);\n stack.set(other, object);\n\n var skipCtor = isPartial;\n while (++index < objLength) {\n key = objProps[index];\n var objValue = object[key],\n othValue = other[key];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, objValue, key, other, object, stack)\n : customizer(objValue, othValue, key, object, other, stack);\n }\n // Recursively compare objects (susceptible to call stack limits).\n if (!(compared === undefined\n ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))\n : compared\n )) {\n result = false;\n break;\n }\n skipCtor || (skipCtor = key == 'constructor');\n }\n if (result && !skipCtor) {\n var objCtor = object.constructor,\n othCtor = other.constructor;\n\n // Non `Object` object instances with different constructors are not equal.\n if (objCtor != othCtor &&\n ('constructor' in object && 'constructor' in other) &&\n !(typeof objCtor == 'function' && objCtor instanceof objCtor &&\n typeof othCtor == 'function' && othCtor instanceof othCtor)) {\n result = false;\n }\n }\n stack['delete'](object);\n stack['delete'](other);\n return result;\n}\n\nmodule.exports = equalObjects;\n","var flatten = require('./flatten'),\n overRest = require('./_overRest'),\n setToString = require('./_setToString');\n\n/**\n * A specialized version of `baseRest` which flattens the rest array.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @returns {Function} Returns the new function.\n */\nfunction flatRest(func) {\n return setToString(overRest(func, undefined, flatten), func + '');\n}\n\nmodule.exports = flatRest;\n","/** Detect free variable `global` from Node.js. */\nvar freeGlobal = typeof global == 'object' && global && global.Object === Object && global;\n\nmodule.exports = freeGlobal;\n","var baseGetAllKeys = require('./_baseGetAllKeys'),\n getSymbols = require('./_getSymbols'),\n keys = require('./keys');\n\n/**\n * Creates an array of own enumerable property names and symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\nfunction getAllKeys(object) {\n return baseGetAllKeys(object, keys, getSymbols);\n}\n\nmodule.exports = getAllKeys;\n","var baseGetAllKeys = require('./_baseGetAllKeys'),\n getSymbolsIn = require('./_getSymbolsIn'),\n keysIn = require('./keysIn');\n\n/**\n * Creates an array of own and inherited enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\nfunction getAllKeysIn(object) {\n return baseGetAllKeys(object, keysIn, getSymbolsIn);\n}\n\nmodule.exports = getAllKeysIn;\n","var isKeyable = require('./_isKeyable');\n\n/**\n * Gets the data for `map`.\n *\n * @private\n * @param {Object} map The map to query.\n * @param {string} key The reference key.\n * @returns {*} Returns the map data.\n */\nfunction getMapData(map, key) {\n var data = map.__data__;\n return isKeyable(key)\n ? data[typeof key == 'string' ? 'string' : 'hash']\n : data.map;\n}\n\nmodule.exports = getMapData;\n","var isStrictComparable = require('./_isStrictComparable'),\n keys = require('./keys');\n\n/**\n * Gets the property names, values, and compare flags of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the match data of `object`.\n */\nfunction getMatchData(object) {\n var result = keys(object),\n length = result.length;\n\n while (length--) {\n var key = result[length],\n value = object[key];\n\n result[length] = [key, value, isStrictComparable(value)];\n }\n return result;\n}\n\nmodule.exports = getMatchData;\n","var baseIsNative = require('./_baseIsNative'),\n getValue = require('./_getValue');\n\n/**\n * Gets the native function at `key` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the method to get.\n * @returns {*} Returns the function if it's native, else `undefined`.\n */\nfunction getNative(object, key) {\n var value = getValue(object, key);\n return baseIsNative(value) ? value : undefined;\n}\n\nmodule.exports = getNative;\n","var overArg = require('./_overArg');\n\n/** Built-in value references. */\nvar getPrototype = overArg(Object.getPrototypeOf, Object);\n\nmodule.exports = getPrototype;\n","var Symbol = require('./_Symbol');\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar nativeObjectToString = objectProto.toString;\n\n/** Built-in value references. */\nvar symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n/**\n * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the raw `toStringTag`.\n */\nfunction getRawTag(value) {\n var isOwn = hasOwnProperty.call(value, symToStringTag),\n tag = value[symToStringTag];\n\n try {\n value[symToStringTag] = undefined;\n var unmasked = true;\n } catch (e) {}\n\n var result = nativeObjectToString.call(value);\n if (unmasked) {\n if (isOwn) {\n value[symToStringTag] = tag;\n } else {\n delete value[symToStringTag];\n }\n }\n return result;\n}\n\nmodule.exports = getRawTag;\n","var arrayFilter = require('./_arrayFilter'),\n stubArray = require('./stubArray');\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Built-in value references. */\nvar propertyIsEnumerable = objectProto.propertyIsEnumerable;\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeGetSymbols = Object.getOwnPropertySymbols;\n\n/**\n * Creates an array of the own enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\nvar getSymbols = !nativeGetSymbols ? stubArray : function(object) {\n if (object == null) {\n return [];\n }\n object = Object(object);\n return arrayFilter(nativeGetSymbols(object), function(symbol) {\n return propertyIsEnumerable.call(object, symbol);\n });\n};\n\nmodule.exports = getSymbols;\n","var arrayPush = require('./_arrayPush'),\n getPrototype = require('./_getPrototype'),\n getSymbols = require('./_getSymbols'),\n stubArray = require('./stubArray');\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeGetSymbols = Object.getOwnPropertySymbols;\n\n/**\n * Creates an array of the own and inherited enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\nvar getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) {\n var result = [];\n while (object) {\n arrayPush(result, getSymbols(object));\n object = getPrototype(object);\n }\n return result;\n};\n\nmodule.exports = getSymbolsIn;\n","var DataView = require('./_DataView'),\n Map = require('./_Map'),\n Promise = require('./_Promise'),\n Set = require('./_Set'),\n WeakMap = require('./_WeakMap'),\n baseGetTag = require('./_baseGetTag'),\n toSource = require('./_toSource');\n\n/** `Object#toString` result references. */\nvar mapTag = '[object Map]',\n objectTag = '[object Object]',\n promiseTag = '[object Promise]',\n setTag = '[object Set]',\n weakMapTag = '[object WeakMap]';\n\nvar dataViewTag = '[object DataView]';\n\n/** Used to detect maps, sets, and weakmaps. */\nvar dataViewCtorString = toSource(DataView),\n mapCtorString = toSource(Map),\n promiseCtorString = toSource(Promise),\n setCtorString = toSource(Set),\n weakMapCtorString = toSource(WeakMap);\n\n/**\n * Gets the `toStringTag` of `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\nvar getTag = baseGetTag;\n\n// Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.\nif ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||\n (Map && getTag(new Map) != mapTag) ||\n (Promise && getTag(Promise.resolve()) != promiseTag) ||\n (Set && getTag(new Set) != setTag) ||\n (WeakMap && getTag(new WeakMap) != weakMapTag)) {\n getTag = function(value) {\n var result = baseGetTag(value),\n Ctor = result == objectTag ? value.constructor : undefined,\n ctorString = Ctor ? toSource(Ctor) : '';\n\n if (ctorString) {\n switch (ctorString) {\n case dataViewCtorString: return dataViewTag;\n case mapCtorString: return mapTag;\n case promiseCtorString: return promiseTag;\n case setCtorString: return setTag;\n case weakMapCtorString: return weakMapTag;\n }\n }\n return result;\n };\n}\n\nmodule.exports = getTag;\n","/**\n * Gets the value at `key` of `object`.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\nfunction getValue(object, key) {\n return object == null ? undefined : object[key];\n}\n\nmodule.exports = getValue;\n","var castPath = require('./_castPath'),\n isArguments = require('./isArguments'),\n isArray = require('./isArray'),\n isIndex = require('./_isIndex'),\n isLength = require('./isLength'),\n toKey = require('./_toKey');\n\n/**\n * Checks if `path` exists on `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @param {Function} hasFunc The function to check properties.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n */\nfunction hasPath(object, path, hasFunc) {\n path = castPath(path, object);\n\n var index = -1,\n length = path.length,\n result = false;\n\n while (++index < length) {\n var key = toKey(path[index]);\n if (!(result = object != null && hasFunc(object, key))) {\n break;\n }\n object = object[key];\n }\n if (result || ++index != length) {\n return result;\n }\n length = object == null ? 0 : object.length;\n return !!length && isLength(length) && isIndex(key, length) &&\n (isArray(object) || isArguments(object));\n}\n\nmodule.exports = hasPath;\n","/** Used to compose unicode character classes. */\nvar rsAstralRange = '\\\\ud800-\\\\udfff',\n rsComboMarksRange = '\\\\u0300-\\\\u036f',\n reComboHalfMarksRange = '\\\\ufe20-\\\\ufe2f',\n rsComboSymbolsRange = '\\\\u20d0-\\\\u20ff',\n rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,\n rsVarRange = '\\\\ufe0e\\\\ufe0f';\n\n/** Used to compose unicode capture groups. */\nvar rsZWJ = '\\\\u200d';\n\n/** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */\nvar reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']');\n\n/**\n * Checks if `string` contains Unicode symbols.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {boolean} Returns `true` if a symbol is found, else `false`.\n */\nfunction hasUnicode(string) {\n return reHasUnicode.test(string);\n}\n\nmodule.exports = hasUnicode;\n","var nativeCreate = require('./_nativeCreate');\n\n/**\n * Removes all key-value entries from the hash.\n *\n * @private\n * @name clear\n * @memberOf Hash\n */\nfunction hashClear() {\n this.__data__ = nativeCreate ? nativeCreate(null) : {};\n this.size = 0;\n}\n\nmodule.exports = hashClear;\n","/**\n * Removes `key` and its value from the hash.\n *\n * @private\n * @name delete\n * @memberOf Hash\n * @param {Object} hash The hash to modify.\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction hashDelete(key) {\n var result = this.has(key) && delete this.__data__[key];\n this.size -= result ? 1 : 0;\n return result;\n}\n\nmodule.exports = hashDelete;\n","var nativeCreate = require('./_nativeCreate');\n\n/** Used to stand-in for `undefined` hash values. */\nvar HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Gets the hash value for `key`.\n *\n * @private\n * @name get\n * @memberOf Hash\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction hashGet(key) {\n var data = this.__data__;\n if (nativeCreate) {\n var result = data[key];\n return result === HASH_UNDEFINED ? undefined : result;\n }\n return hasOwnProperty.call(data, key) ? data[key] : undefined;\n}\n\nmodule.exports = hashGet;\n","var nativeCreate = require('./_nativeCreate');\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Checks if a hash value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Hash\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction hashHas(key) {\n var data = this.__data__;\n return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);\n}\n\nmodule.exports = hashHas;\n","var nativeCreate = require('./_nativeCreate');\n\n/** Used to stand-in for `undefined` hash values. */\nvar HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n/**\n * Sets the hash `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Hash\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the hash instance.\n */\nfunction hashSet(key, value) {\n var data = this.__data__;\n this.size += this.has(key) ? 0 : 1;\n data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;\n return this;\n}\n\nmodule.exports = hashSet;\n","/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Initializes an array clone.\n *\n * @private\n * @param {Array} array The array to clone.\n * @returns {Array} Returns the initialized clone.\n */\nfunction initCloneArray(array) {\n var length = array.length,\n result = new array.constructor(length);\n\n // Add properties assigned by `RegExp#exec`.\n if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {\n result.index = array.index;\n result.input = array.input;\n }\n return result;\n}\n\nmodule.exports = initCloneArray;\n","var cloneArrayBuffer = require('./_cloneArrayBuffer'),\n cloneDataView = require('./_cloneDataView'),\n cloneRegExp = require('./_cloneRegExp'),\n cloneSymbol = require('./_cloneSymbol'),\n cloneTypedArray = require('./_cloneTypedArray');\n\n/** `Object#toString` result references. */\nvar boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n symbolTag = '[object Symbol]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n dataViewTag = '[object DataView]',\n float32Tag = '[object Float32Array]',\n float64Tag = '[object Float64Array]',\n int8Tag = '[object Int8Array]',\n int16Tag = '[object Int16Array]',\n int32Tag = '[object Int32Array]',\n uint8Tag = '[object Uint8Array]',\n uint8ClampedTag = '[object Uint8ClampedArray]',\n uint16Tag = '[object Uint16Array]',\n uint32Tag = '[object Uint32Array]';\n\n/**\n * Initializes an object clone based on its `toStringTag`.\n *\n * **Note:** This function only supports cloning values with tags of\n * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.\n *\n * @private\n * @param {Object} object The object to clone.\n * @param {string} tag The `toStringTag` of the object to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the initialized clone.\n */\nfunction initCloneByTag(object, tag, isDeep) {\n var Ctor = object.constructor;\n switch (tag) {\n case arrayBufferTag:\n return cloneArrayBuffer(object);\n\n case boolTag:\n case dateTag:\n return new Ctor(+object);\n\n case dataViewTag:\n return cloneDataView(object, isDeep);\n\n case float32Tag: case float64Tag:\n case int8Tag: case int16Tag: case int32Tag:\n case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:\n return cloneTypedArray(object, isDeep);\n\n case mapTag:\n return new Ctor;\n\n case numberTag:\n case stringTag:\n return new Ctor(object);\n\n case regexpTag:\n return cloneRegExp(object);\n\n case setTag:\n return new Ctor;\n\n case symbolTag:\n return cloneSymbol(object);\n }\n}\n\nmodule.exports = initCloneByTag;\n","var baseCreate = require('./_baseCreate'),\n getPrototype = require('./_getPrototype'),\n isPrototype = require('./_isPrototype');\n\n/**\n * Initializes an object clone.\n *\n * @private\n * @param {Object} object The object to clone.\n * @returns {Object} Returns the initialized clone.\n */\nfunction initCloneObject(object) {\n return (typeof object.constructor == 'function' && !isPrototype(object))\n ? baseCreate(getPrototype(object))\n : {};\n}\n\nmodule.exports = initCloneObject;\n","var Symbol = require('./_Symbol'),\n isArguments = require('./isArguments'),\n isArray = require('./isArray');\n\n/** Built-in value references. */\nvar spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined;\n\n/**\n * Checks if `value` is a flattenable `arguments` object or array.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.\n */\nfunction isFlattenable(value) {\n return isArray(value) || isArguments(value) ||\n !!(spreadableSymbol && value && value[spreadableSymbol]);\n}\n\nmodule.exports = isFlattenable;\n","/** Used as references for various `Number` constants. */\nvar MAX_SAFE_INTEGER = 9007199254740991;\n\n/** Used to detect unsigned integer values. */\nvar reIsUint = /^(?:0|[1-9]\\d*)$/;\n\n/**\n * Checks if `value` is a valid array-like index.\n *\n * @private\n * @param {*} value The value to check.\n * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n */\nfunction isIndex(value, length) {\n var type = typeof value;\n length = length == null ? MAX_SAFE_INTEGER : length;\n\n return !!length &&\n (type == 'number' ||\n (type != 'symbol' && reIsUint.test(value))) &&\n (value > -1 && value % 1 == 0 && value < length);\n}\n\nmodule.exports = isIndex;\n","var eq = require('./eq'),\n isArrayLike = require('./isArrayLike'),\n isIndex = require('./_isIndex'),\n isObject = require('./isObject');\n\n/**\n * Checks if the given arguments are from an iteratee call.\n *\n * @private\n * @param {*} value The potential iteratee value argument.\n * @param {*} index The potential iteratee index or key argument.\n * @param {*} object The potential iteratee object argument.\n * @returns {boolean} Returns `true` if the arguments are from an iteratee call,\n * else `false`.\n */\nfunction isIterateeCall(value, index, object) {\n if (!isObject(object)) {\n return false;\n }\n var type = typeof index;\n if (type == 'number'\n ? (isArrayLike(object) && isIndex(index, object.length))\n : (type == 'string' && index in object)\n ) {\n return eq(object[index], value);\n }\n return false;\n}\n\nmodule.exports = isIterateeCall;\n","var isArray = require('./isArray'),\n isSymbol = require('./isSymbol');\n\n/** Used to match property names within property paths. */\nvar reIsDeepProp = /\\.|\\[(?:[^[\\]]*|([\"'])(?:(?!\\1)[^\\\\]|\\\\.)*?\\1)\\]/,\n reIsPlainProp = /^\\w*$/;\n\n/**\n * Checks if `value` is a property name and not a property path.\n *\n * @private\n * @param {*} value The value to check.\n * @param {Object} [object] The object to query keys on.\n * @returns {boolean} Returns `true` if `value` is a property name, else `false`.\n */\nfunction isKey(value, object) {\n if (isArray(value)) {\n return false;\n }\n var type = typeof value;\n if (type == 'number' || type == 'symbol' || type == 'boolean' ||\n value == null || isSymbol(value)) {\n return true;\n }\n return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||\n (object != null && value in Object(object));\n}\n\nmodule.exports = isKey;\n","/**\n * Checks if `value` is suitable for use as unique object key.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is suitable, else `false`.\n */\nfunction isKeyable(value) {\n var type = typeof value;\n return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')\n ? (value !== '__proto__')\n : (value === null);\n}\n\nmodule.exports = isKeyable;\n","var coreJsData = require('./_coreJsData');\n\n/** Used to detect methods masquerading as native. */\nvar maskSrcKey = (function() {\n var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');\n return uid ? ('Symbol(src)_1.' + uid) : '';\n}());\n\n/**\n * Checks if `func` has its source masked.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` is masked, else `false`.\n */\nfunction isMasked(func) {\n return !!maskSrcKey && (maskSrcKey in func);\n}\n\nmodule.exports = isMasked;\n","/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Checks if `value` is likely a prototype object.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.\n */\nfunction isPrototype(value) {\n var Ctor = value && value.constructor,\n proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;\n\n return value === proto;\n}\n\nmodule.exports = isPrototype;\n","var isObject = require('./isObject');\n\n/**\n * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` if suitable for strict\n * equality comparisons, else `false`.\n */\nfunction isStrictComparable(value) {\n return value === value && !isObject(value);\n}\n\nmodule.exports = isStrictComparable;\n","/**\n * Removes all key-value entries from the list cache.\n *\n * @private\n * @name clear\n * @memberOf ListCache\n */\nfunction listCacheClear() {\n this.__data__ = [];\n this.size = 0;\n}\n\nmodule.exports = listCacheClear;\n","var assocIndexOf = require('./_assocIndexOf');\n\n/** Used for built-in method references. */\nvar arrayProto = Array.prototype;\n\n/** Built-in value references. */\nvar splice = arrayProto.splice;\n\n/**\n * Removes `key` and its value from the list cache.\n *\n * @private\n * @name delete\n * @memberOf ListCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction listCacheDelete(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n return false;\n }\n var lastIndex = data.length - 1;\n if (index == lastIndex) {\n data.pop();\n } else {\n splice.call(data, index, 1);\n }\n --this.size;\n return true;\n}\n\nmodule.exports = listCacheDelete;\n","var assocIndexOf = require('./_assocIndexOf');\n\n/**\n * Gets the list cache value for `key`.\n *\n * @private\n * @name get\n * @memberOf ListCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction listCacheGet(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n return index < 0 ? undefined : data[index][1];\n}\n\nmodule.exports = listCacheGet;\n","var assocIndexOf = require('./_assocIndexOf');\n\n/**\n * Checks if a list cache value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf ListCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction listCacheHas(key) {\n return assocIndexOf(this.__data__, key) > -1;\n}\n\nmodule.exports = listCacheHas;\n","var assocIndexOf = require('./_assocIndexOf');\n\n/**\n * Sets the list cache `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf ListCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the list cache instance.\n */\nfunction listCacheSet(key, value) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n ++this.size;\n data.push([key, value]);\n } else {\n data[index][1] = value;\n }\n return this;\n}\n\nmodule.exports = listCacheSet;\n","var Hash = require('./_Hash'),\n ListCache = require('./_ListCache'),\n Map = require('./_Map');\n\n/**\n * Removes all key-value entries from the map.\n *\n * @private\n * @name clear\n * @memberOf MapCache\n */\nfunction mapCacheClear() {\n this.size = 0;\n this.__data__ = {\n 'hash': new Hash,\n 'map': new (Map || ListCache),\n 'string': new Hash\n };\n}\n\nmodule.exports = mapCacheClear;\n","var getMapData = require('./_getMapData');\n\n/**\n * Removes `key` and its value from the map.\n *\n * @private\n * @name delete\n * @memberOf MapCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction mapCacheDelete(key) {\n var result = getMapData(this, key)['delete'](key);\n this.size -= result ? 1 : 0;\n return result;\n}\n\nmodule.exports = mapCacheDelete;\n","var getMapData = require('./_getMapData');\n\n/**\n * Gets the map value for `key`.\n *\n * @private\n * @name get\n * @memberOf MapCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction mapCacheGet(key) {\n return getMapData(this, key).get(key);\n}\n\nmodule.exports = mapCacheGet;\n","var getMapData = require('./_getMapData');\n\n/**\n * Checks if a map value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf MapCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction mapCacheHas(key) {\n return getMapData(this, key).has(key);\n}\n\nmodule.exports = mapCacheHas;\n","var getMapData = require('./_getMapData');\n\n/**\n * Sets the map `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf MapCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the map cache instance.\n */\nfunction mapCacheSet(key, value) {\n var data = getMapData(this, key),\n size = data.size;\n\n data.set(key, value);\n this.size += data.size == size ? 0 : 1;\n return this;\n}\n\nmodule.exports = mapCacheSet;\n","/**\n * Converts `map` to its key-value pairs.\n *\n * @private\n * @param {Object} map The map to convert.\n * @returns {Array} Returns the key-value pairs.\n */\nfunction mapToArray(map) {\n var index = -1,\n result = Array(map.size);\n\n map.forEach(function(value, key) {\n result[++index] = [key, value];\n });\n return result;\n}\n\nmodule.exports = mapToArray;\n","/**\n * A specialized version of `matchesProperty` for source values suitable\n * for strict equality comparisons, i.e. `===`.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @param {*} srcValue The value to match.\n * @returns {Function} Returns the new spec function.\n */\nfunction matchesStrictComparable(key, srcValue) {\n return function(object) {\n if (object == null) {\n return false;\n }\n return object[key] === srcValue &&\n (srcValue !== undefined || (key in Object(object)));\n };\n}\n\nmodule.exports = matchesStrictComparable;\n","var memoize = require('./memoize');\n\n/** Used as the maximum memoize cache size. */\nvar MAX_MEMOIZE_SIZE = 500;\n\n/**\n * A specialized version of `_.memoize` which clears the memoized function's\n * cache when it exceeds `MAX_MEMOIZE_SIZE`.\n *\n * @private\n * @param {Function} func The function to have its output memoized.\n * @returns {Function} Returns the new memoized function.\n */\nfunction memoizeCapped(func) {\n var result = memoize(func, function(key) {\n if (cache.size === MAX_MEMOIZE_SIZE) {\n cache.clear();\n }\n return key;\n });\n\n var cache = result.cache;\n return result;\n}\n\nmodule.exports = memoizeCapped;\n","var getNative = require('./_getNative');\n\n/* Built-in method references that are verified to be native. */\nvar nativeCreate = getNative(Object, 'create');\n\nmodule.exports = nativeCreate;\n","var overArg = require('./_overArg');\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeKeys = overArg(Object.keys, Object);\n\nmodule.exports = nativeKeys;\n","/**\n * This function is like\n * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * except that it includes inherited enumerable properties.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\nfunction nativeKeysIn(object) {\n var result = [];\n if (object != null) {\n for (var key in Object(object)) {\n result.push(key);\n }\n }\n return result;\n}\n\nmodule.exports = nativeKeysIn;\n","var freeGlobal = require('./_freeGlobal');\n\n/** Detect free variable `exports`. */\nvar freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n/** Detect free variable `module`. */\nvar freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n/** Detect the popular CommonJS extension `module.exports`. */\nvar moduleExports = freeModule && freeModule.exports === freeExports;\n\n/** Detect free variable `process` from Node.js. */\nvar freeProcess = moduleExports && freeGlobal.process;\n\n/** Used to access faster Node.js helpers. */\nvar nodeUtil = (function() {\n try {\n // Use `util.types` for Node.js 10+.\n var types = freeModule && freeModule.require && freeModule.require('util').types;\n\n if (types) {\n return types;\n }\n\n // Legacy `process.binding('util')` for Node.js < 10.\n return freeProcess && freeProcess.binding && freeProcess.binding('util');\n } catch (e) {}\n}());\n\nmodule.exports = nodeUtil;\n","/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar nativeObjectToString = objectProto.toString;\n\n/**\n * Converts `value` to a string using `Object.prototype.toString`.\n *\n * @private\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n */\nfunction objectToString(value) {\n return nativeObjectToString.call(value);\n}\n\nmodule.exports = objectToString;\n","/**\n * Creates a unary function that invokes `func` with its argument transformed.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {Function} transform The argument transform.\n * @returns {Function} Returns the new function.\n */\nfunction overArg(func, transform) {\n return function(arg) {\n return func(transform(arg));\n };\n}\n\nmodule.exports = overArg;\n","var apply = require('./_apply');\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeMax = Math.max;\n\n/**\n * A specialized version of `baseRest` which transforms the rest array.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @param {Function} transform The rest array transform.\n * @returns {Function} Returns the new function.\n */\nfunction overRest(func, start, transform) {\n start = nativeMax(start === undefined ? (func.length - 1) : start, 0);\n return function() {\n var args = arguments,\n index = -1,\n length = nativeMax(args.length - start, 0),\n array = Array(length);\n\n while (++index < length) {\n array[index] = args[start + index];\n }\n index = -1;\n var otherArgs = Array(start + 1);\n while (++index < start) {\n otherArgs[index] = args[index];\n }\n otherArgs[start] = transform(array);\n return apply(func, this, otherArgs);\n };\n}\n\nmodule.exports = overRest;\n","var freeGlobal = require('./_freeGlobal');\n\n/** Detect free variable `self`. */\nvar freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n/** Used as a reference to the global object. */\nvar root = freeGlobal || freeSelf || Function('return this')();\n\nmodule.exports = root;\n","/**\n * Gets the value at `key`, unless `key` is \"__proto__\" or \"constructor\".\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\nfunction safeGet(object, key) {\n if (key === 'constructor' && typeof object[key] === 'function') {\n return;\n }\n\n if (key == '__proto__') {\n return;\n }\n\n return object[key];\n}\n\nmodule.exports = safeGet;\n","/** Used to stand-in for `undefined` hash values. */\nvar HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n/**\n * Adds `value` to the array cache.\n *\n * @private\n * @name add\n * @memberOf SetCache\n * @alias push\n * @param {*} value The value to cache.\n * @returns {Object} Returns the cache instance.\n */\nfunction setCacheAdd(value) {\n this.__data__.set(value, HASH_UNDEFINED);\n return this;\n}\n\nmodule.exports = setCacheAdd;\n","/**\n * Checks if `value` is in the array cache.\n *\n * @private\n * @name has\n * @memberOf SetCache\n * @param {*} value The value to search for.\n * @returns {number} Returns `true` if `value` is found, else `false`.\n */\nfunction setCacheHas(value) {\n return this.__data__.has(value);\n}\n\nmodule.exports = setCacheHas;\n","/**\n * Converts `set` to an array of its values.\n *\n * @private\n * @param {Object} set The set to convert.\n * @returns {Array} Returns the values.\n */\nfunction setToArray(set) {\n var index = -1,\n result = Array(set.size);\n\n set.forEach(function(value) {\n result[++index] = value;\n });\n return result;\n}\n\nmodule.exports = setToArray;\n","var baseSetToString = require('./_baseSetToString'),\n shortOut = require('./_shortOut');\n\n/**\n * Sets the `toString` method of `func` to return `string`.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\nvar setToString = shortOut(baseSetToString);\n\nmodule.exports = setToString;\n","/** Used to detect hot functions by number of calls within a span of milliseconds. */\nvar HOT_COUNT = 800,\n HOT_SPAN = 16;\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeNow = Date.now;\n\n/**\n * Creates a function that'll short out and invoke `identity` instead\n * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`\n * milliseconds.\n *\n * @private\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new shortable function.\n */\nfunction shortOut(func) {\n var count = 0,\n lastCalled = 0;\n\n return function() {\n var stamp = nativeNow(),\n remaining = HOT_SPAN - (stamp - lastCalled);\n\n lastCalled = stamp;\n if (remaining > 0) {\n if (++count >= HOT_COUNT) {\n return arguments[0];\n }\n } else {\n count = 0;\n }\n return func.apply(undefined, arguments);\n };\n}\n\nmodule.exports = shortOut;\n","var ListCache = require('./_ListCache');\n\n/**\n * Removes all key-value entries from the stack.\n *\n * @private\n * @name clear\n * @memberOf Stack\n */\nfunction stackClear() {\n this.__data__ = new ListCache;\n this.size = 0;\n}\n\nmodule.exports = stackClear;\n","/**\n * Removes `key` and its value from the stack.\n *\n * @private\n * @name delete\n * @memberOf Stack\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction stackDelete(key) {\n var data = this.__data__,\n result = data['delete'](key);\n\n this.size = data.size;\n return result;\n}\n\nmodule.exports = stackDelete;\n","/**\n * Gets the stack value for `key`.\n *\n * @private\n * @name get\n * @memberOf Stack\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction stackGet(key) {\n return this.__data__.get(key);\n}\n\nmodule.exports = stackGet;\n","/**\n * Checks if a stack value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Stack\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction stackHas(key) {\n return this.__data__.has(key);\n}\n\nmodule.exports = stackHas;\n","var ListCache = require('./_ListCache'),\n Map = require('./_Map'),\n MapCache = require('./_MapCache');\n\n/** Used as the size to enable large array optimizations. */\nvar LARGE_ARRAY_SIZE = 200;\n\n/**\n * Sets the stack `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Stack\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the stack cache instance.\n */\nfunction stackSet(key, value) {\n var data = this.__data__;\n if (data instanceof ListCache) {\n var pairs = data.__data__;\n if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {\n pairs.push([key, value]);\n this.size = ++data.size;\n return this;\n }\n data = this.__data__ = new MapCache(pairs);\n }\n data.set(key, value);\n this.size = data.size;\n return this;\n}\n\nmodule.exports = stackSet;\n","/**\n * A specialized version of `_.indexOf` which performs strict equality\n * comparisons of values, i.e. `===`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\nfunction strictIndexOf(array, value, fromIndex) {\n var index = fromIndex - 1,\n length = array.length;\n\n while (++index < length) {\n if (array[index] === value) {\n return index;\n }\n }\n return -1;\n}\n\nmodule.exports = strictIndexOf;\n","var asciiToArray = require('./_asciiToArray'),\n hasUnicode = require('./_hasUnicode'),\n unicodeToArray = require('./_unicodeToArray');\n\n/**\n * Converts `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\nfunction stringToArray(string) {\n return hasUnicode(string)\n ? unicodeToArray(string)\n : asciiToArray(string);\n}\n\nmodule.exports = stringToArray;\n","var memoizeCapped = require('./_memoizeCapped');\n\n/** Used to match property names within property paths. */\nvar rePropName = /[^.[\\]]+|\\[(?:(-?\\d+(?:\\.\\d+)?)|([\"'])((?:(?!\\2)[^\\\\]|\\\\.)*?)\\2)\\]|(?=(?:\\.|\\[\\])(?:\\.|\\[\\]|$))/g;\n\n/** Used to match backslashes in property paths. */\nvar reEscapeChar = /\\\\(\\\\)?/g;\n\n/**\n * Converts `string` to a property path array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the property path array.\n */\nvar stringToPath = memoizeCapped(function(string) {\n var result = [];\n if (string.charCodeAt(0) === 46 /* . */) {\n result.push('');\n }\n string.replace(rePropName, function(match, number, quote, subString) {\n result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match));\n });\n return result;\n});\n\nmodule.exports = stringToPath;\n","var isSymbol = require('./isSymbol');\n\n/** Used as references for various `Number` constants. */\nvar INFINITY = 1 / 0;\n\n/**\n * Converts `value` to a string key if it's not a string or symbol.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {string|symbol} Returns the key.\n */\nfunction toKey(value) {\n if (typeof value == 'string' || isSymbol(value)) {\n return value;\n }\n var result = (value + '');\n return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n}\n\nmodule.exports = toKey;\n","/** Used for built-in method references. */\nvar funcProto = Function.prototype;\n\n/** Used to resolve the decompiled source of functions. */\nvar funcToString = funcProto.toString;\n\n/**\n * Converts `func` to its source code.\n *\n * @private\n * @param {Function} func The function to convert.\n * @returns {string} Returns the source code.\n */\nfunction toSource(func) {\n if (func != null) {\n try {\n return funcToString.call(func);\n } catch (e) {}\n try {\n return (func + '');\n } catch (e) {}\n }\n return '';\n}\n\nmodule.exports = toSource;\n","/** Used to match a single whitespace character. */\nvar reWhitespace = /\\s/;\n\n/**\n * Used by `_.trim` and `_.trimEnd` to get the index of the last non-whitespace\n * character of `string`.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {number} Returns the index of the last non-whitespace character.\n */\nfunction trimmedEndIndex(string) {\n var index = string.length;\n\n while (index-- && reWhitespace.test(string.charAt(index))) {}\n return index;\n}\n\nmodule.exports = trimmedEndIndex;\n","/** Used to compose unicode character classes. */\nvar rsAstralRange = '\\\\ud800-\\\\udfff',\n rsComboMarksRange = '\\\\u0300-\\\\u036f',\n reComboHalfMarksRange = '\\\\ufe20-\\\\ufe2f',\n rsComboSymbolsRange = '\\\\u20d0-\\\\u20ff',\n rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,\n rsVarRange = '\\\\ufe0e\\\\ufe0f';\n\n/** Used to compose unicode capture groups. */\nvar rsAstral = '[' + rsAstralRange + ']',\n rsCombo = '[' + rsComboRange + ']',\n rsFitz = '\\\\ud83c[\\\\udffb-\\\\udfff]',\n rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',\n rsNonAstral = '[^' + rsAstralRange + ']',\n rsRegional = '(?:\\\\ud83c[\\\\udde6-\\\\uddff]){2}',\n rsSurrPair = '[\\\\ud800-\\\\udbff][\\\\udc00-\\\\udfff]',\n rsZWJ = '\\\\u200d';\n\n/** Used to compose unicode regexes. */\nvar reOptMod = rsModifier + '?',\n rsOptVar = '[' + rsVarRange + ']?',\n rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',\n rsSeq = rsOptVar + reOptMod + rsOptJoin,\n rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';\n\n/** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */\nvar reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');\n\n/**\n * Converts a Unicode `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\nfunction unicodeToArray(string) {\n return string.match(reUnicode) || [];\n}\n\nmodule.exports = unicodeToArray;\n","var assignValue = require('./_assignValue'),\n copyObject = require('./_copyObject'),\n createAssigner = require('./_createAssigner'),\n isArrayLike = require('./isArrayLike'),\n isPrototype = require('./_isPrototype'),\n keys = require('./keys');\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Assigns own enumerable string keyed properties of source objects to the\n * destination object. Source objects are applied from left to right.\n * Subsequent sources overwrite property assignments of previous sources.\n *\n * **Note:** This method mutates `object` and is loosely based on\n * [`Object.assign`](https://mdn.io/Object/assign).\n *\n * @static\n * @memberOf _\n * @since 0.10.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.assignIn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * function Bar() {\n * this.c = 3;\n * }\n *\n * Foo.prototype.b = 2;\n * Bar.prototype.d = 4;\n *\n * _.assign({ 'a': 0 }, new Foo, new Bar);\n * // => { 'a': 1, 'c': 3 }\n */\nvar assign = createAssigner(function(object, source) {\n if (isPrototype(source) || isArrayLike(source)) {\n copyObject(source, keys(source), object);\n return;\n }\n for (var key in source) {\n if (hasOwnProperty.call(source, key)) {\n assignValue(object, key, source[key]);\n }\n }\n});\n\nmodule.exports = assign;\n","var copyObject = require('./_copyObject'),\n createAssigner = require('./_createAssigner'),\n keysIn = require('./keysIn');\n\n/**\n * This method is like `_.assign` except that it iterates over own and\n * inherited source properties.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias extend\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.assign\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * function Bar() {\n * this.c = 3;\n * }\n *\n * Foo.prototype.b = 2;\n * Bar.prototype.d = 4;\n *\n * _.assignIn({ 'a': 0 }, new Foo, new Bar);\n * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }\n */\nvar assignIn = createAssigner(function(object, source) {\n copyObject(source, keysIn(source), object);\n});\n\nmodule.exports = assignIn;\n","var baseAt = require('./_baseAt'),\n flatRest = require('./_flatRest');\n\n/**\n * Creates an array of values corresponding to `paths` of `object`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Array} Returns the picked values.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n *\n * _.at(object, ['a[0].b.c', 'a[1]']);\n * // => [3, 4]\n */\nvar at = flatRest(baseAt);\n\nmodule.exports = at;\n","var baseClone = require('./_baseClone');\n\n/** Used to compose bitmasks for cloning. */\nvar CLONE_SYMBOLS_FLAG = 4;\n\n/**\n * Creates a shallow clone of `value`.\n *\n * **Note:** This method is loosely based on the\n * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)\n * and supports cloning arrays, array buffers, booleans, date objects, maps,\n * numbers, `Object` objects, regexes, sets, strings, symbols, and typed\n * arrays. The own enumerable properties of `arguments` objects are cloned\n * as plain objects. An empty object is returned for uncloneable values such\n * as error objects, functions, DOM nodes, and WeakMaps.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to clone.\n * @returns {*} Returns the cloned value.\n * @see _.cloneDeep\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var shallow = _.clone(objects);\n * console.log(shallow[0] === objects[0]);\n * // => true\n */\nfunction clone(value) {\n return baseClone(value, CLONE_SYMBOLS_FLAG);\n}\n\nmodule.exports = clone;\n","var baseClone = require('./_baseClone');\n\n/** Used to compose bitmasks for cloning. */\nvar CLONE_DEEP_FLAG = 1,\n CLONE_SYMBOLS_FLAG = 4;\n\n/**\n * This method is like `_.clone` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @returns {*} Returns the deep cloned value.\n * @see _.clone\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var deep = _.cloneDeep(objects);\n * console.log(deep[0] === objects[0]);\n * // => false\n */\nfunction cloneDeep(value) {\n return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);\n}\n\nmodule.exports = cloneDeep;\n","/**\n * Creates an array with all falsey values removed. The values `false`, `null`,\n * `0`, `\"\"`, `undefined`, and `NaN` are falsey.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to compact.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * _.compact([0, 1, false, 2, '', 3]);\n * // => [1, 2, 3]\n */\nfunction compact(array) {\n var index = -1,\n length = array == null ? 0 : array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (value) {\n result[resIndex++] = value;\n }\n }\n return result;\n}\n\nmodule.exports = compact;\n","/**\n * Creates a function that returns `value`.\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Util\n * @param {*} value The value to return from the new function.\n * @returns {Function} Returns the new constant function.\n * @example\n *\n * var objects = _.times(2, _.constant({ 'a': 1 }));\n *\n * console.log(objects);\n * // => [{ 'a': 1 }, { 'a': 1 }]\n *\n * console.log(objects[0] === objects[1]);\n * // => true\n */\nfunction constant(value) {\n return function() {\n return value;\n };\n}\n\nmodule.exports = constant;\n","var baseDifference = require('./_baseDifference'),\n baseFlatten = require('./_baseFlatten'),\n baseRest = require('./_baseRest'),\n isArrayLikeObject = require('./isArrayLikeObject');\n\n/**\n * Creates an array of `array` values not included in the other given arrays\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons. The order and references of result values are\n * determined by the first array.\n *\n * **Note:** Unlike `_.pullAll`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...Array} [values] The values to exclude.\n * @returns {Array} Returns the new array of filtered values.\n * @see _.without, _.xor\n * @example\n *\n * _.difference([2, 1], [2, 3]);\n * // => [1]\n */\nvar difference = baseRest(function(array, values) {\n return isArrayLikeObject(array)\n ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true))\n : [];\n});\n\nmodule.exports = difference;\n","/**\n * Performs a\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * comparison between two values to determine if they are equivalent.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.eq(object, object);\n * // => true\n *\n * _.eq(object, other);\n * // => false\n *\n * _.eq('a', 'a');\n * // => true\n *\n * _.eq('a', Object('a'));\n * // => false\n *\n * _.eq(NaN, NaN);\n * // => true\n */\nfunction eq(value, other) {\n return value === other || (value !== value && other !== other);\n}\n\nmodule.exports = eq;\n","module.exports = require('./assignIn');\n","var arrayFilter = require('./_arrayFilter'),\n baseFilter = require('./_baseFilter'),\n baseIteratee = require('./_baseIteratee'),\n isArray = require('./isArray');\n\n/**\n * Iterates over elements of `collection`, returning an array of all elements\n * `predicate` returns truthy for. The predicate is invoked with three\n * arguments: (value, index|key, collection).\n *\n * **Note:** Unlike `_.remove`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n * @see _.reject\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': true },\n * { 'user': 'fred', 'age': 40, 'active': false }\n * ];\n *\n * _.filter(users, function(o) { return !o.active; });\n * // => objects for ['fred']\n *\n * // The `_.matches` iteratee shorthand.\n * _.filter(users, { 'age': 36, 'active': true });\n * // => objects for ['barney']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.filter(users, ['active', false]);\n * // => objects for ['fred']\n *\n * // The `_.property` iteratee shorthand.\n * _.filter(users, 'active');\n * // => objects for ['barney']\n *\n * // Combining several predicates using `_.overEvery` or `_.overSome`.\n * _.filter(users, _.overSome([{ 'age': 36 }, ['age', 40]]));\n * // => objects for ['fred', 'barney']\n */\nfunction filter(collection, predicate) {\n var func = isArray(collection) ? arrayFilter : baseFilter;\n return func(collection, baseIteratee(predicate, 3));\n}\n\nmodule.exports = filter;\n","module.exports = require('./head');\n","var baseFlatten = require('./_baseFlatten');\n\n/**\n * Flattens `array` a single level deep.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to flatten.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * _.flatten([1, [2, [3, [4]], 5]]);\n * // => [1, 2, [3, [4]], 5]\n */\nfunction flatten(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseFlatten(array, 1) : [];\n}\n\nmodule.exports = flatten;\n","var baseFunctions = require('./_baseFunctions'),\n keys = require('./keys');\n\n/**\n * Creates an array of function property names from own enumerable properties\n * of `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to inspect.\n * @returns {Array} Returns the function names.\n * @see _.functionsIn\n * @example\n *\n * function Foo() {\n * this.a = _.constant('a');\n * this.b = _.constant('b');\n * }\n *\n * Foo.prototype.c = _.constant('c');\n *\n * _.functions(new Foo);\n * // => ['a', 'b']\n */\nfunction functions(object) {\n return object == null ? [] : baseFunctions(object, keys(object));\n}\n\nmodule.exports = functions;\n","var baseGet = require('./_baseGet');\n\n/**\n * Gets the value at `path` of `object`. If the resolved value is\n * `undefined`, the `defaultValue` is returned in its place.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.get(object, 'a[0].b.c');\n * // => 3\n *\n * _.get(object, ['a', '0', 'b', 'c']);\n * // => 3\n *\n * _.get(object, 'a.b.c', 'default');\n * // => 'default'\n */\nfunction get(object, path, defaultValue) {\n var result = object == null ? undefined : baseGet(object, path);\n return result === undefined ? defaultValue : result;\n}\n\nmodule.exports = get;\n","var baseHasIn = require('./_baseHasIn'),\n hasPath = require('./_hasPath');\n\n/**\n * Checks if `path` is a direct or inherited property of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n * @example\n *\n * var object = _.create({ 'a': _.create({ 'b': 2 }) });\n *\n * _.hasIn(object, 'a');\n * // => true\n *\n * _.hasIn(object, 'a.b');\n * // => true\n *\n * _.hasIn(object, ['a', 'b']);\n * // => true\n *\n * _.hasIn(object, 'b');\n * // => false\n */\nfunction hasIn(object, path) {\n return object != null && hasPath(object, path, baseHasIn);\n}\n\nmodule.exports = hasIn;\n","/**\n * Gets the first element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @alias first\n * @category Array\n * @param {Array} array The array to query.\n * @returns {*} Returns the first element of `array`.\n * @example\n *\n * _.head([1, 2, 3]);\n * // => 1\n *\n * _.head([]);\n * // => undefined\n */\nfunction head(array) {\n return (array && array.length) ? array[0] : undefined;\n}\n\nmodule.exports = head;\n","/**\n * This method returns the first argument it receives.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Util\n * @param {*} value Any value.\n * @returns {*} Returns `value`.\n * @example\n *\n * var object = { 'a': 1 };\n *\n * console.log(_.identity(object) === object);\n * // => true\n */\nfunction identity(value) {\n return value;\n}\n\nmodule.exports = identity;\n","var baseIndexOf = require('./_baseIndexOf'),\n isArrayLike = require('./isArrayLike'),\n isString = require('./isString'),\n toInteger = require('./toInteger'),\n values = require('./values');\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeMax = Math.max;\n\n/**\n * Checks if `value` is in `collection`. If `collection` is a string, it's\n * checked for a substring of `value`, otherwise\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * is used for equality comparisons. If `fromIndex` is negative, it's used as\n * the offset from the end of `collection`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object|string} collection The collection to inspect.\n * @param {*} value The value to search for.\n * @param {number} [fromIndex=0] The index to search from.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.\n * @returns {boolean} Returns `true` if `value` is found, else `false`.\n * @example\n *\n * _.includes([1, 2, 3], 1);\n * // => true\n *\n * _.includes([1, 2, 3], 1, 2);\n * // => false\n *\n * _.includes({ 'a': 1, 'b': 2 }, 1);\n * // => true\n *\n * _.includes('abcd', 'bc');\n * // => true\n */\nfunction includes(collection, value, fromIndex, guard) {\n collection = isArrayLike(collection) ? collection : values(collection);\n fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0;\n\n var length = collection.length;\n if (fromIndex < 0) {\n fromIndex = nativeMax(length + fromIndex, 0);\n }\n return isString(collection)\n ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1)\n : (!!length && baseIndexOf(collection, value, fromIndex) > -1);\n}\n\nmodule.exports = includes;\n","var baseIsArguments = require('./_baseIsArguments'),\n isObjectLike = require('./isObjectLike');\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/** Built-in value references. */\nvar propertyIsEnumerable = objectProto.propertyIsEnumerable;\n\n/**\n * Checks if `value` is likely an `arguments` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n * else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\nvar isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {\n return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&\n !propertyIsEnumerable.call(value, 'callee');\n};\n\nmodule.exports = isArguments;\n","/**\n * Checks if `value` is classified as an `Array` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array, else `false`.\n * @example\n *\n * _.isArray([1, 2, 3]);\n * // => true\n *\n * _.isArray(document.body.children);\n * // => false\n *\n * _.isArray('abc');\n * // => false\n *\n * _.isArray(_.noop);\n * // => false\n */\nvar isArray = Array.isArray;\n\nmodule.exports = isArray;\n","var isFunction = require('./isFunction'),\n isLength = require('./isLength');\n\n/**\n * Checks if `value` is array-like. A value is considered array-like if it's\n * not a function and has a `value.length` that's an integer greater than or\n * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n * @example\n *\n * _.isArrayLike([1, 2, 3]);\n * // => true\n *\n * _.isArrayLike(document.body.children);\n * // => true\n *\n * _.isArrayLike('abc');\n * // => true\n *\n * _.isArrayLike(_.noop);\n * // => false\n */\nfunction isArrayLike(value) {\n return value != null && isLength(value.length) && !isFunction(value);\n}\n\nmodule.exports = isArrayLike;\n","var isArrayLike = require('./isArrayLike'),\n isObjectLike = require('./isObjectLike');\n\n/**\n * This method is like `_.isArrayLike` except that it also checks if `value`\n * is an object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array-like object,\n * else `false`.\n * @example\n *\n * _.isArrayLikeObject([1, 2, 3]);\n * // => true\n *\n * _.isArrayLikeObject(document.body.children);\n * // => true\n *\n * _.isArrayLikeObject('abc');\n * // => false\n *\n * _.isArrayLikeObject(_.noop);\n * // => false\n */\nfunction isArrayLikeObject(value) {\n return isObjectLike(value) && isArrayLike(value);\n}\n\nmodule.exports = isArrayLikeObject;\n","var root = require('./_root'),\n stubFalse = require('./stubFalse');\n\n/** Detect free variable `exports`. */\nvar freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n/** Detect free variable `module`. */\nvar freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n/** Detect the popular CommonJS extension `module.exports`. */\nvar moduleExports = freeModule && freeModule.exports === freeExports;\n\n/** Built-in value references. */\nvar Buffer = moduleExports ? root.Buffer : undefined;\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined;\n\n/**\n * Checks if `value` is a buffer.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.\n * @example\n *\n * _.isBuffer(new Buffer(2));\n * // => true\n *\n * _.isBuffer(new Uint8Array(2));\n * // => false\n */\nvar isBuffer = nativeIsBuffer || stubFalse;\n\nmodule.exports = isBuffer;\n","var isObjectLike = require('./isObjectLike'),\n isPlainObject = require('./isPlainObject');\n\n/**\n * Checks if `value` is likely a DOM element.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.\n * @example\n *\n * _.isElement(document.body);\n * // => true\n *\n * _.isElement('');\n * // => false\n */\nfunction isElement(value) {\n return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);\n}\n\nmodule.exports = isElement;\n","var baseKeys = require('./_baseKeys'),\n getTag = require('./_getTag'),\n isArguments = require('./isArguments'),\n isArray = require('./isArray'),\n isArrayLike = require('./isArrayLike'),\n isBuffer = require('./isBuffer'),\n isPrototype = require('./_isPrototype'),\n isTypedArray = require('./isTypedArray');\n\n/** `Object#toString` result references. */\nvar mapTag = '[object Map]',\n setTag = '[object Set]';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Checks if `value` is an empty object, collection, map, or set.\n *\n * Objects are considered empty if they have no own enumerable string keyed\n * properties.\n *\n * Array-like values such as `arguments` objects, arrays, buffers, strings, or\n * jQuery-like collections are considered empty if they have a `length` of `0`.\n * Similarly, maps and sets are considered empty if they have a `size` of `0`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is empty, else `false`.\n * @example\n *\n * _.isEmpty(null);\n * // => true\n *\n * _.isEmpty(true);\n * // => true\n *\n * _.isEmpty(1);\n * // => true\n *\n * _.isEmpty([1, 2, 3]);\n * // => false\n *\n * _.isEmpty({ 'a': 1 });\n * // => false\n */\nfunction isEmpty(value) {\n if (value == null) {\n return true;\n }\n if (isArrayLike(value) &&\n (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||\n isBuffer(value) || isTypedArray(value) || isArguments(value))) {\n return !value.length;\n }\n var tag = getTag(value);\n if (tag == mapTag || tag == setTag) {\n return !value.size;\n }\n if (isPrototype(value)) {\n return !baseKeys(value).length;\n }\n for (var key in value) {\n if (hasOwnProperty.call(value, key)) {\n return false;\n }\n }\n return true;\n}\n\nmodule.exports = isEmpty;\n","var baseGetTag = require('./_baseGetTag'),\n isObject = require('./isObject');\n\n/** `Object#toString` result references. */\nvar asyncTag = '[object AsyncFunction]',\n funcTag = '[object Function]',\n genTag = '[object GeneratorFunction]',\n proxyTag = '[object Proxy]';\n\n/**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a function, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\nfunction isFunction(value) {\n if (!isObject(value)) {\n return false;\n }\n // The use of `Object#toString` avoids issues with the `typeof` operator\n // in Safari 9 which returns 'object' for typed arrays and other constructors.\n var tag = baseGetTag(value);\n return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;\n}\n\nmodule.exports = isFunction;\n","/** Used as references for various `Number` constants. */\nvar MAX_SAFE_INTEGER = 9007199254740991;\n\n/**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This method is loosely based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n * @example\n *\n * _.isLength(3);\n * // => true\n *\n * _.isLength(Number.MIN_VALUE);\n * // => false\n *\n * _.isLength(Infinity);\n * // => false\n *\n * _.isLength('3');\n * // => false\n */\nfunction isLength(value) {\n return typeof value == 'number' &&\n value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n}\n\nmodule.exports = isLength;\n","var baseIsMap = require('./_baseIsMap'),\n baseUnary = require('./_baseUnary'),\n nodeUtil = require('./_nodeUtil');\n\n/* Node.js helper references. */\nvar nodeIsMap = nodeUtil && nodeUtil.isMap;\n\n/**\n * Checks if `value` is classified as a `Map` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n * @example\n *\n * _.isMap(new Map);\n * // => true\n *\n * _.isMap(new WeakMap);\n * // => false\n */\nvar isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;\n\nmodule.exports = isMap;\n","var baseGetTag = require('./_baseGetTag'),\n isObjectLike = require('./isObjectLike');\n\n/** `Object#toString` result references. */\nvar numberTag = '[object Number]';\n\n/**\n * Checks if `value` is classified as a `Number` primitive or object.\n *\n * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are\n * classified as numbers, use the `_.isFinite` method.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a number, else `false`.\n * @example\n *\n * _.isNumber(3);\n * // => true\n *\n * _.isNumber(Number.MIN_VALUE);\n * // => true\n *\n * _.isNumber(Infinity);\n * // => true\n *\n * _.isNumber('3');\n * // => false\n */\nfunction isNumber(value) {\n return typeof value == 'number' ||\n (isObjectLike(value) && baseGetTag(value) == numberTag);\n}\n\nmodule.exports = isNumber;\n","/**\n * Checks if `value` is the\n * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\nfunction isObject(value) {\n var type = typeof value;\n return value != null && (type == 'object' || type == 'function');\n}\n\nmodule.exports = isObject;\n","/**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\nfunction isObjectLike(value) {\n return value != null && typeof value == 'object';\n}\n\nmodule.exports = isObjectLike;\n","var baseGetTag = require('./_baseGetTag'),\n getPrototype = require('./_getPrototype'),\n isObjectLike = require('./isObjectLike');\n\n/** `Object#toString` result references. */\nvar objectTag = '[object Object]';\n\n/** Used for built-in method references. */\nvar funcProto = Function.prototype,\n objectProto = Object.prototype;\n\n/** Used to resolve the decompiled source of functions. */\nvar funcToString = funcProto.toString;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/** Used to infer the `Object` constructor. */\nvar objectCtorString = funcToString.call(Object);\n\n/**\n * Checks if `value` is a plain object, that is, an object created by the\n * `Object` constructor or one with a `[[Prototype]]` of `null`.\n *\n * @static\n * @memberOf _\n * @since 0.8.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * _.isPlainObject(new Foo);\n * // => false\n *\n * _.isPlainObject([1, 2, 3]);\n * // => false\n *\n * _.isPlainObject({ 'x': 0, 'y': 0 });\n * // => true\n *\n * _.isPlainObject(Object.create(null));\n * // => true\n */\nfunction isPlainObject(value) {\n if (!isObjectLike(value) || baseGetTag(value) != objectTag) {\n return false;\n }\n var proto = getPrototype(value);\n if (proto === null) {\n return true;\n }\n var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;\n return typeof Ctor == 'function' && Ctor instanceof Ctor &&\n funcToString.call(Ctor) == objectCtorString;\n}\n\nmodule.exports = isPlainObject;\n","var baseIsSet = require('./_baseIsSet'),\n baseUnary = require('./_baseUnary'),\n nodeUtil = require('./_nodeUtil');\n\n/* Node.js helper references. */\nvar nodeIsSet = nodeUtil && nodeUtil.isSet;\n\n/**\n * Checks if `value` is classified as a `Set` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n * @example\n *\n * _.isSet(new Set);\n * // => true\n *\n * _.isSet(new WeakSet);\n * // => false\n */\nvar isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;\n\nmodule.exports = isSet;\n","var baseGetTag = require('./_baseGetTag'),\n isArray = require('./isArray'),\n isObjectLike = require('./isObjectLike');\n\n/** `Object#toString` result references. */\nvar stringTag = '[object String]';\n\n/**\n * Checks if `value` is classified as a `String` primitive or object.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a string, else `false`.\n * @example\n *\n * _.isString('abc');\n * // => true\n *\n * _.isString(1);\n * // => false\n */\nfunction isString(value) {\n return typeof value == 'string' ||\n (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);\n}\n\nmodule.exports = isString;\n","var baseGetTag = require('./_baseGetTag'),\n isObjectLike = require('./isObjectLike');\n\n/** `Object#toString` result references. */\nvar symbolTag = '[object Symbol]';\n\n/**\n * Checks if `value` is classified as a `Symbol` primitive or object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n * @example\n *\n * _.isSymbol(Symbol.iterator);\n * // => true\n *\n * _.isSymbol('abc');\n * // => false\n */\nfunction isSymbol(value) {\n return typeof value == 'symbol' ||\n (isObjectLike(value) && baseGetTag(value) == symbolTag);\n}\n\nmodule.exports = isSymbol;\n","var baseIsTypedArray = require('./_baseIsTypedArray'),\n baseUnary = require('./_baseUnary'),\n nodeUtil = require('./_nodeUtil');\n\n/* Node.js helper references. */\nvar nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;\n\n/**\n * Checks if `value` is classified as a typed array.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n * @example\n *\n * _.isTypedArray(new Uint8Array);\n * // => true\n *\n * _.isTypedArray([]);\n * // => false\n */\nvar isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;\n\nmodule.exports = isTypedArray;\n","/**\n * Checks if `value` is `undefined`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.\n * @example\n *\n * _.isUndefined(void 0);\n * // => true\n *\n * _.isUndefined(null);\n * // => false\n */\nfunction isUndefined(value) {\n return value === undefined;\n}\n\nmodule.exports = isUndefined;\n","var arrayLikeKeys = require('./_arrayLikeKeys'),\n baseKeys = require('./_baseKeys'),\n isArrayLike = require('./isArrayLike');\n\n/**\n * Creates an array of the own enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects. See the\n * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * for more details.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keys(new Foo);\n * // => ['a', 'b'] (iteration order is not guaranteed)\n *\n * _.keys('hi');\n * // => ['0', '1']\n */\nfunction keys(object) {\n return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);\n}\n\nmodule.exports = keys;\n","var arrayLikeKeys = require('./_arrayLikeKeys'),\n baseKeysIn = require('./_baseKeysIn'),\n isArrayLike = require('./isArrayLike');\n\n/**\n * Creates an array of the own and inherited enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keysIn(new Foo);\n * // => ['a', 'b', 'c'] (iteration order is not guaranteed)\n */\nfunction keysIn(object) {\n return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);\n}\n\nmodule.exports = keysIn;\n","/**\n * Gets the last element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {*} Returns the last element of `array`.\n * @example\n *\n * _.last([1, 2, 3]);\n * // => 3\n */\nfunction last(array) {\n var length = array == null ? 0 : array.length;\n return length ? array[length - 1] : undefined;\n}\n\nmodule.exports = last;\n","/**\n * @license\n * Lodash \n * Based on Underscore.js 1.8.3 \n * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors\n */\n;(function() {\n\n /** Used as a safe reference for `undefined` in pre-ES5 environments. */\n var undefined;\n\n /** Used as the semantic version number. */\n var VERSION = '4.17.21';\n\n /** Used as the size to enable large array optimizations. */\n var LARGE_ARRAY_SIZE = 200;\n\n /** Error message constants. */\n var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.',\n FUNC_ERROR_TEXT = 'Expected a function',\n INVALID_TEMPL_VAR_ERROR_TEXT = 'Invalid `variable` option passed into `_.template`';\n\n /** Used to stand-in for `undefined` hash values. */\n var HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n /** Used as the maximum memoize cache size. */\n var MAX_MEMOIZE_SIZE = 500;\n\n /** Used as the internal argument placeholder. */\n var PLACEHOLDER = '__lodash_placeholder__';\n\n /** Used to compose bitmasks for cloning. */\n var CLONE_DEEP_FLAG = 1,\n CLONE_FLAT_FLAG = 2,\n CLONE_SYMBOLS_FLAG = 4;\n\n /** Used to compose bitmasks for value comparisons. */\n var COMPARE_PARTIAL_FLAG = 1,\n COMPARE_UNORDERED_FLAG = 2;\n\n /** Used to compose bitmasks for function metadata. */\n var WRAP_BIND_FLAG = 1,\n WRAP_BIND_KEY_FLAG = 2,\n WRAP_CURRY_BOUND_FLAG = 4,\n WRAP_CURRY_FLAG = 8,\n WRAP_CURRY_RIGHT_FLAG = 16,\n WRAP_PARTIAL_FLAG = 32,\n WRAP_PARTIAL_RIGHT_FLAG = 64,\n WRAP_ARY_FLAG = 128,\n WRAP_REARG_FLAG = 256,\n WRAP_FLIP_FLAG = 512;\n\n /** Used as default options for `_.truncate`. */\n var DEFAULT_TRUNC_LENGTH = 30,\n DEFAULT_TRUNC_OMISSION = '...';\n\n /** Used to detect hot functions by number of calls within a span of milliseconds. */\n var HOT_COUNT = 800,\n HOT_SPAN = 16;\n\n /** Used to indicate the type of lazy iteratees. */\n var LAZY_FILTER_FLAG = 1,\n LAZY_MAP_FLAG = 2,\n LAZY_WHILE_FLAG = 3;\n\n /** Used as references for various `Number` constants. */\n var INFINITY = 1 / 0,\n MAX_SAFE_INTEGER = 9007199254740991,\n MAX_INTEGER = 1.7976931348623157e+308,\n NAN = 0 / 0;\n\n /** Used as references for the maximum length and index of an array. */\n var MAX_ARRAY_LENGTH = 4294967295,\n MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,\n HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;\n\n /** Used to associate wrap methods with their bit flags. */\n var wrapFlags = [\n ['ary', WRAP_ARY_FLAG],\n ['bind', WRAP_BIND_FLAG],\n ['bindKey', WRAP_BIND_KEY_FLAG],\n ['curry', WRAP_CURRY_FLAG],\n ['curryRight', WRAP_CURRY_RIGHT_FLAG],\n ['flip', WRAP_FLIP_FLAG],\n ['partial', WRAP_PARTIAL_FLAG],\n ['partialRight', WRAP_PARTIAL_RIGHT_FLAG],\n ['rearg', WRAP_REARG_FLAG]\n ];\n\n /** `Object#toString` result references. */\n var argsTag = '[object Arguments]',\n arrayTag = '[object Array]',\n asyncTag = '[object AsyncFunction]',\n boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n domExcTag = '[object DOMException]',\n errorTag = '[object Error]',\n funcTag = '[object Function]',\n genTag = '[object GeneratorFunction]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n nullTag = '[object Null]',\n objectTag = '[object Object]',\n promiseTag = '[object Promise]',\n proxyTag = '[object Proxy]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n symbolTag = '[object Symbol]',\n undefinedTag = '[object Undefined]',\n weakMapTag = '[object WeakMap]',\n weakSetTag = '[object WeakSet]';\n\n var arrayBufferTag = '[object ArrayBuffer]',\n dataViewTag = '[object DataView]',\n float32Tag = '[object Float32Array]',\n float64Tag = '[object Float64Array]',\n int8Tag = '[object Int8Array]',\n int16Tag = '[object Int16Array]',\n int32Tag = '[object Int32Array]',\n uint8Tag = '[object Uint8Array]',\n uint8ClampedTag = '[object Uint8ClampedArray]',\n uint16Tag = '[object Uint16Array]',\n uint32Tag = '[object Uint32Array]';\n\n /** Used to match empty string literals in compiled template source. */\n var reEmptyStringLeading = /\\b__p \\+= '';/g,\n reEmptyStringMiddle = /\\b(__p \\+=) '' \\+/g,\n reEmptyStringTrailing = /(__e\\(.*?\\)|\\b__t\\)) \\+\\n'';/g;\n\n /** Used to match HTML entities and HTML characters. */\n var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,\n reUnescapedHtml = /[&<>\"']/g,\n reHasEscapedHtml = RegExp(reEscapedHtml.source),\n reHasUnescapedHtml = RegExp(reUnescapedHtml.source);\n\n /** Used to match template delimiters. */\n var reEscape = /<%-([\\s\\S]+?)%>/g,\n reEvaluate = /<%([\\s\\S]+?)%>/g,\n reInterpolate = /<%=([\\s\\S]+?)%>/g;\n\n /** Used to match property names within property paths. */\n var reIsDeepProp = /\\.|\\[(?:[^[\\]]*|([\"'])(?:(?!\\1)[^\\\\]|\\\\.)*?\\1)\\]/,\n reIsPlainProp = /^\\w*$/,\n rePropName = /[^.[\\]]+|\\[(?:(-?\\d+(?:\\.\\d+)?)|([\"'])((?:(?!\\2)[^\\\\]|\\\\.)*?)\\2)\\]|(?=(?:\\.|\\[\\])(?:\\.|\\[\\]|$))/g;\n\n /**\n * Used to match `RegExp`\n * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).\n */\n var reRegExpChar = /[\\\\^$.*+?()[\\]{}|]/g,\n reHasRegExpChar = RegExp(reRegExpChar.source);\n\n /** Used to match leading whitespace. */\n var reTrimStart = /^\\s+/;\n\n /** Used to match a single whitespace character. */\n var reWhitespace = /\\s/;\n\n /** Used to match wrap detail comments. */\n var reWrapComment = /\\{(?:\\n\\/\\* \\[wrapped with .+\\] \\*\\/)?\\n?/,\n reWrapDetails = /\\{\\n\\/\\* \\[wrapped with (.+)\\] \\*/,\n reSplitDetails = /,? & /;\n\n /** Used to match words composed of alphanumeric characters. */\n var reAsciiWord = /[^\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\x7f]+/g;\n\n /**\n * Used to validate the `validate` option in `_.template` variable.\n *\n * Forbids characters which could potentially change the meaning of the function argument definition:\n * - \"(),\" (modification of function parameters)\n * - \"=\" (default value)\n * - \"[]{}\" (destructuring of function parameters)\n * - \"/\" (beginning of a comment)\n * - whitespace\n */\n var reForbiddenIdentifierChars = /[()=,{}\\[\\]\\/\\s]/;\n\n /** Used to match backslashes in property paths. */\n var reEscapeChar = /\\\\(\\\\)?/g;\n\n /**\n * Used to match\n * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).\n */\n var reEsTemplate = /\\$\\{([^\\\\}]*(?:\\\\.[^\\\\}]*)*)\\}/g;\n\n /** Used to match `RegExp` flags from their coerced string values. */\n var reFlags = /\\w*$/;\n\n /** Used to detect bad signed hexadecimal string values. */\n var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;\n\n /** Used to detect binary string values. */\n var reIsBinary = /^0b[01]+$/i;\n\n /** Used to detect host constructors (Safari). */\n var reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\n /** Used to detect octal string values. */\n var reIsOctal = /^0o[0-7]+$/i;\n\n /** Used to detect unsigned integer values. */\n var reIsUint = /^(?:0|[1-9]\\d*)$/;\n\n /** Used to match Latin Unicode letters (excluding mathematical operators). */\n var reLatin = /[\\xc0-\\xd6\\xd8-\\xf6\\xf8-\\xff\\u0100-\\u017f]/g;\n\n /** Used to ensure capturing order of template delimiters. */\n var reNoMatch = /($^)/;\n\n /** Used to match unescaped characters in compiled string literals. */\n var reUnescapedString = /['\\n\\r\\u2028\\u2029\\\\]/g;\n\n /** Used to compose unicode character classes. */\n var rsAstralRange = '\\\\ud800-\\\\udfff',\n rsComboMarksRange = '\\\\u0300-\\\\u036f',\n reComboHalfMarksRange = '\\\\ufe20-\\\\ufe2f',\n rsComboSymbolsRange = '\\\\u20d0-\\\\u20ff',\n rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,\n rsDingbatRange = '\\\\u2700-\\\\u27bf',\n rsLowerRange = 'a-z\\\\xdf-\\\\xf6\\\\xf8-\\\\xff',\n rsMathOpRange = '\\\\xac\\\\xb1\\\\xd7\\\\xf7',\n rsNonCharRange = '\\\\x00-\\\\x2f\\\\x3a-\\\\x40\\\\x5b-\\\\x60\\\\x7b-\\\\xbf',\n rsPunctuationRange = '\\\\u2000-\\\\u206f',\n rsSpaceRange = ' \\\\t\\\\x0b\\\\f\\\\xa0\\\\ufeff\\\\n\\\\r\\\\u2028\\\\u2029\\\\u1680\\\\u180e\\\\u2000\\\\u2001\\\\u2002\\\\u2003\\\\u2004\\\\u2005\\\\u2006\\\\u2007\\\\u2008\\\\u2009\\\\u200a\\\\u202f\\\\u205f\\\\u3000',\n rsUpperRange = 'A-Z\\\\xc0-\\\\xd6\\\\xd8-\\\\xde',\n rsVarRange = '\\\\ufe0e\\\\ufe0f',\n rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;\n\n /** Used to compose unicode capture groups. */\n var rsApos = \"['\\u2019]\",\n rsAstral = '[' + rsAstralRange + ']',\n rsBreak = '[' + rsBreakRange + ']',\n rsCombo = '[' + rsComboRange + ']',\n rsDigits = '\\\\d+',\n rsDingbat = '[' + rsDingbatRange + ']',\n rsLower = '[' + rsLowerRange + ']',\n rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']',\n rsFitz = '\\\\ud83c[\\\\udffb-\\\\udfff]',\n rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',\n rsNonAstral = '[^' + rsAstralRange + ']',\n rsRegional = '(?:\\\\ud83c[\\\\udde6-\\\\uddff]){2}',\n rsSurrPair = '[\\\\ud800-\\\\udbff][\\\\udc00-\\\\udfff]',\n rsUpper = '[' + rsUpperRange + ']',\n rsZWJ = '\\\\u200d';\n\n /** Used to compose unicode regexes. */\n var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')',\n rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')',\n rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',\n rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',\n reOptMod = rsModifier + '?',\n rsOptVar = '[' + rsVarRange + ']?',\n rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',\n rsOrdLower = '\\\\d*(?:1st|2nd|3rd|(?![123])\\\\dth)(?=\\\\b|[A-Z_])',\n rsOrdUpper = '\\\\d*(?:1ST|2ND|3RD|(?![123])\\\\dTH)(?=\\\\b|[a-z_])',\n rsSeq = rsOptVar + reOptMod + rsOptJoin,\n rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq,\n rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';\n\n /** Used to match apostrophes. */\n var reApos = RegExp(rsApos, 'g');\n\n /**\n * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and\n * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).\n */\n var reComboMark = RegExp(rsCombo, 'g');\n\n /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */\n var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');\n\n /** Used to match complex or compound words. */\n var reUnicodeWord = RegExp([\n rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',\n rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')',\n rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower,\n rsUpper + '+' + rsOptContrUpper,\n rsOrdUpper,\n rsOrdLower,\n rsDigits,\n rsEmoji\n ].join('|'), 'g');\n\n /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */\n var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']');\n\n /** Used to detect strings that need a more robust regexp to match words. */\n var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/;\n\n /** Used to assign default `context` object properties. */\n var contextProps = [\n 'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array',\n 'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object',\n 'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array',\n 'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap',\n '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout'\n ];\n\n /** Used to make template sourceURLs easier to identify. */\n var templateCounter = -1;\n\n /** Used to identify `toStringTag` values of typed arrays. */\n var typedArrayTags = {};\n typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =\n typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =\n typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =\n typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =\n typedArrayTags[uint32Tag] = true;\n typedArrayTags[argsTag] = typedArrayTags[arrayTag] =\n typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =\n typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =\n typedArrayTags[errorTag] = typedArrayTags[funcTag] =\n typedArrayTags[mapTag] = typedArrayTags[numberTag] =\n typedArrayTags[objectTag] = typedArrayTags[regexpTag] =\n typedArrayTags[setTag] = typedArrayTags[stringTag] =\n typedArrayTags[weakMapTag] = false;\n\n /** Used to identify `toStringTag` values supported by `_.clone`. */\n var cloneableTags = {};\n cloneableTags[argsTag] = cloneableTags[arrayTag] =\n cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =\n cloneableTags[boolTag] = cloneableTags[dateTag] =\n cloneableTags[float32Tag] = cloneableTags[float64Tag] =\n cloneableTags[int8Tag] = cloneableTags[int16Tag] =\n cloneableTags[int32Tag] = cloneableTags[mapTag] =\n cloneableTags[numberTag] = cloneableTags[objectTag] =\n cloneableTags[regexpTag] = cloneableTags[setTag] =\n cloneableTags[stringTag] = cloneableTags[symbolTag] =\n cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =\n cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;\n cloneableTags[errorTag] = cloneableTags[funcTag] =\n cloneableTags[weakMapTag] = false;\n\n /** Used to map Latin Unicode letters to basic Latin letters. */\n var deburredLetters = {\n // Latin-1 Supplement block.\n '\\xc0': 'A', '\\xc1': 'A', '\\xc2': 'A', '\\xc3': 'A', '\\xc4': 'A', '\\xc5': 'A',\n '\\xe0': 'a', '\\xe1': 'a', '\\xe2': 'a', '\\xe3': 'a', '\\xe4': 'a', '\\xe5': 'a',\n '\\xc7': 'C', '\\xe7': 'c',\n '\\xd0': 'D', '\\xf0': 'd',\n '\\xc8': 'E', '\\xc9': 'E', '\\xca': 'E', '\\xcb': 'E',\n '\\xe8': 'e', '\\xe9': 'e', '\\xea': 'e', '\\xeb': 'e',\n '\\xcc': 'I', '\\xcd': 'I', '\\xce': 'I', '\\xcf': 'I',\n '\\xec': 'i', '\\xed': 'i', '\\xee': 'i', '\\xef': 'i',\n '\\xd1': 'N', '\\xf1': 'n',\n '\\xd2': 'O', '\\xd3': 'O', '\\xd4': 'O', '\\xd5': 'O', '\\xd6': 'O', '\\xd8': 'O',\n '\\xf2': 'o', '\\xf3': 'o', '\\xf4': 'o', '\\xf5': 'o', '\\xf6': 'o', '\\xf8': 'o',\n '\\xd9': 'U', '\\xda': 'U', '\\xdb': 'U', '\\xdc': 'U',\n '\\xf9': 'u', '\\xfa': 'u', '\\xfb': 'u', '\\xfc': 'u',\n '\\xdd': 'Y', '\\xfd': 'y', '\\xff': 'y',\n '\\xc6': 'Ae', '\\xe6': 'ae',\n '\\xde': 'Th', '\\xfe': 'th',\n '\\xdf': 'ss',\n // Latin Extended-A block.\n '\\u0100': 'A', '\\u0102': 'A', '\\u0104': 'A',\n '\\u0101': 'a', '\\u0103': 'a', '\\u0105': 'a',\n '\\u0106': 'C', '\\u0108': 'C', '\\u010a': 'C', '\\u010c': 'C',\n '\\u0107': 'c', '\\u0109': 'c', '\\u010b': 'c', '\\u010d': 'c',\n '\\u010e': 'D', '\\u0110': 'D', '\\u010f': 'd', '\\u0111': 'd',\n '\\u0112': 'E', '\\u0114': 'E', '\\u0116': 'E', '\\u0118': 'E', '\\u011a': 'E',\n '\\u0113': 'e', '\\u0115': 'e', '\\u0117': 'e', '\\u0119': 'e', '\\u011b': 'e',\n '\\u011c': 'G', '\\u011e': 'G', '\\u0120': 'G', '\\u0122': 'G',\n '\\u011d': 'g', '\\u011f': 'g', '\\u0121': 'g', '\\u0123': 'g',\n '\\u0124': 'H', '\\u0126': 'H', '\\u0125': 'h', '\\u0127': 'h',\n '\\u0128': 'I', '\\u012a': 'I', '\\u012c': 'I', '\\u012e': 'I', '\\u0130': 'I',\n '\\u0129': 'i', '\\u012b': 'i', '\\u012d': 'i', '\\u012f': 'i', '\\u0131': 'i',\n '\\u0134': 'J', '\\u0135': 'j',\n '\\u0136': 'K', '\\u0137': 'k', '\\u0138': 'k',\n '\\u0139': 'L', '\\u013b': 'L', '\\u013d': 'L', '\\u013f': 'L', '\\u0141': 'L',\n '\\u013a': 'l', '\\u013c': 'l', '\\u013e': 'l', '\\u0140': 'l', '\\u0142': 'l',\n '\\u0143': 'N', '\\u0145': 'N', '\\u0147': 'N', '\\u014a': 'N',\n '\\u0144': 'n', '\\u0146': 'n', '\\u0148': 'n', '\\u014b': 'n',\n '\\u014c': 'O', '\\u014e': 'O', '\\u0150': 'O',\n '\\u014d': 'o', '\\u014f': 'o', '\\u0151': 'o',\n '\\u0154': 'R', '\\u0156': 'R', '\\u0158': 'R',\n '\\u0155': 'r', '\\u0157': 'r', '\\u0159': 'r',\n '\\u015a': 'S', '\\u015c': 'S', '\\u015e': 'S', '\\u0160': 'S',\n '\\u015b': 's', '\\u015d': 's', '\\u015f': 's', '\\u0161': 's',\n '\\u0162': 'T', '\\u0164': 'T', '\\u0166': 'T',\n '\\u0163': 't', '\\u0165': 't', '\\u0167': 't',\n '\\u0168': 'U', '\\u016a': 'U', '\\u016c': 'U', '\\u016e': 'U', '\\u0170': 'U', '\\u0172': 'U',\n '\\u0169': 'u', '\\u016b': 'u', '\\u016d': 'u', '\\u016f': 'u', '\\u0171': 'u', '\\u0173': 'u',\n '\\u0174': 'W', '\\u0175': 'w',\n '\\u0176': 'Y', '\\u0177': 'y', '\\u0178': 'Y',\n '\\u0179': 'Z', '\\u017b': 'Z', '\\u017d': 'Z',\n '\\u017a': 'z', '\\u017c': 'z', '\\u017e': 'z',\n '\\u0132': 'IJ', '\\u0133': 'ij',\n '\\u0152': 'Oe', '\\u0153': 'oe',\n '\\u0149': \"'n\", '\\u017f': 's'\n };\n\n /** Used to map characters to HTML entities. */\n var htmlEscapes = {\n '&': '&',\n '<': '<',\n '>': '>',\n '\"': '"',\n \"'\": '''\n };\n\n /** Used to map HTML entities to characters. */\n var htmlUnescapes = {\n '&': '&',\n '<': '<',\n '>': '>',\n '"': '\"',\n ''': \"'\"\n };\n\n /** Used to escape characters for inclusion in compiled string literals. */\n var stringEscapes = {\n '\\\\': '\\\\',\n \"'\": \"'\",\n '\\n': 'n',\n '\\r': 'r',\n '\\u2028': 'u2028',\n '\\u2029': 'u2029'\n };\n\n /** Built-in method references without a dependency on `root`. */\n var freeParseFloat = parseFloat,\n freeParseInt = parseInt;\n\n /** Detect free variable `global` from Node.js. */\n var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;\n\n /** Detect free variable `self`. */\n var freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n /** Used as a reference to the global object. */\n var root = freeGlobal || freeSelf || Function('return this')();\n\n /** Detect free variable `exports`. */\n var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n /** Detect free variable `module`. */\n var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n /** Detect the popular CommonJS extension `module.exports`. */\n var moduleExports = freeModule && freeModule.exports === freeExports;\n\n /** Detect free variable `process` from Node.js. */\n var freeProcess = moduleExports && freeGlobal.process;\n\n /** Used to access faster Node.js helpers. */\n var nodeUtil = (function() {\n try {\n // Use `util.types` for Node.js 10+.\n var types = freeModule && freeModule.require && freeModule.require('util').types;\n\n if (types) {\n return types;\n }\n\n // Legacy `process.binding('util')` for Node.js < 10.\n return freeProcess && freeProcess.binding && freeProcess.binding('util');\n } catch (e) {}\n }());\n\n /* Node.js helper references. */\n var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer,\n nodeIsDate = nodeUtil && nodeUtil.isDate,\n nodeIsMap = nodeUtil && nodeUtil.isMap,\n nodeIsRegExp = nodeUtil && nodeUtil.isRegExp,\n nodeIsSet = nodeUtil && nodeUtil.isSet,\n nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;\n\n /*--------------------------------------------------------------------------*/\n\n /**\n * A faster alternative to `Function#apply`, this function invokes `func`\n * with the `this` binding of `thisArg` and the arguments of `args`.\n *\n * @private\n * @param {Function} func The function to invoke.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {Array} args The arguments to invoke `func` with.\n * @returns {*} Returns the result of `func`.\n */\n function apply(func, thisArg, args) {\n switch (args.length) {\n case 0: return func.call(thisArg);\n case 1: return func.call(thisArg, args[0]);\n case 2: return func.call(thisArg, args[0], args[1]);\n case 3: return func.call(thisArg, args[0], args[1], args[2]);\n }\n return func.apply(thisArg, args);\n }\n\n /**\n * A specialized version of `baseAggregator` for arrays.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} setter The function to set `accumulator` values.\n * @param {Function} iteratee The iteratee to transform keys.\n * @param {Object} accumulator The initial aggregated object.\n * @returns {Function} Returns `accumulator`.\n */\n function arrayAggregator(array, setter, iteratee, accumulator) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n var value = array[index];\n setter(accumulator, value, iteratee(value), array);\n }\n return accumulator;\n }\n\n /**\n * A specialized version of `_.forEach` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\n function arrayEach(array, iteratee) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (iteratee(array[index], index, array) === false) {\n break;\n }\n }\n return array;\n }\n\n /**\n * A specialized version of `_.forEachRight` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\n function arrayEachRight(array, iteratee) {\n var length = array == null ? 0 : array.length;\n\n while (length--) {\n if (iteratee(array[length], length, array) === false) {\n break;\n }\n }\n return array;\n }\n\n /**\n * A specialized version of `_.every` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if all elements pass the predicate check,\n * else `false`.\n */\n function arrayEvery(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (!predicate(array[index], index, array)) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * A specialized version of `_.filter` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n */\n function arrayFilter(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (predicate(value, index, array)) {\n result[resIndex++] = value;\n }\n }\n return result;\n }\n\n /**\n * A specialized version of `_.includes` for arrays without support for\n * specifying an index to search from.\n *\n * @private\n * @param {Array} [array] The array to inspect.\n * @param {*} target The value to search for.\n * @returns {boolean} Returns `true` if `target` is found, else `false`.\n */\n function arrayIncludes(array, value) {\n var length = array == null ? 0 : array.length;\n return !!length && baseIndexOf(array, value, 0) > -1;\n }\n\n /**\n * This function is like `arrayIncludes` except that it accepts a comparator.\n *\n * @private\n * @param {Array} [array] The array to inspect.\n * @param {*} target The value to search for.\n * @param {Function} comparator The comparator invoked per element.\n * @returns {boolean} Returns `true` if `target` is found, else `false`.\n */\n function arrayIncludesWith(array, value, comparator) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (comparator(value, array[index])) {\n return true;\n }\n }\n return false;\n }\n\n /**\n * A specialized version of `_.map` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n */\n function arrayMap(array, iteratee) {\n var index = -1,\n length = array == null ? 0 : array.length,\n result = Array(length);\n\n while (++index < length) {\n result[index] = iteratee(array[index], index, array);\n }\n return result;\n }\n\n /**\n * Appends the elements of `values` to `array`.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {Array} values The values to append.\n * @returns {Array} Returns `array`.\n */\n function arrayPush(array, values) {\n var index = -1,\n length = values.length,\n offset = array.length;\n\n while (++index < length) {\n array[offset + index] = values[index];\n }\n return array;\n }\n\n /**\n * A specialized version of `_.reduce` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @param {boolean} [initAccum] Specify using the first element of `array` as\n * the initial value.\n * @returns {*} Returns the accumulated value.\n */\n function arrayReduce(array, iteratee, accumulator, initAccum) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n if (initAccum && length) {\n accumulator = array[++index];\n }\n while (++index < length) {\n accumulator = iteratee(accumulator, array[index], index, array);\n }\n return accumulator;\n }\n\n /**\n * A specialized version of `_.reduceRight` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @param {boolean} [initAccum] Specify using the last element of `array` as\n * the initial value.\n * @returns {*} Returns the accumulated value.\n */\n function arrayReduceRight(array, iteratee, accumulator, initAccum) {\n var length = array == null ? 0 : array.length;\n if (initAccum && length) {\n accumulator = array[--length];\n }\n while (length--) {\n accumulator = iteratee(accumulator, array[length], length, array);\n }\n return accumulator;\n }\n\n /**\n * A specialized version of `_.some` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n */\n function arraySome(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (predicate(array[index], index, array)) {\n return true;\n }\n }\n return false;\n }\n\n /**\n * Gets the size of an ASCII `string`.\n *\n * @private\n * @param {string} string The string inspect.\n * @returns {number} Returns the string size.\n */\n var asciiSize = baseProperty('length');\n\n /**\n * Converts an ASCII `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\n function asciiToArray(string) {\n return string.split('');\n }\n\n /**\n * Splits an ASCII `string` into an array of its words.\n *\n * @private\n * @param {string} The string to inspect.\n * @returns {Array} Returns the words of `string`.\n */\n function asciiWords(string) {\n return string.match(reAsciiWord) || [];\n }\n\n /**\n * The base implementation of methods like `_.findKey` and `_.findLastKey`,\n * without support for iteratee shorthands, which iterates over `collection`\n * using `eachFunc`.\n *\n * @private\n * @param {Array|Object} collection The collection to inspect.\n * @param {Function} predicate The function invoked per iteration.\n * @param {Function} eachFunc The function to iterate over `collection`.\n * @returns {*} Returns the found element or its key, else `undefined`.\n */\n function baseFindKey(collection, predicate, eachFunc) {\n var result;\n eachFunc(collection, function(value, key, collection) {\n if (predicate(value, key, collection)) {\n result = key;\n return false;\n }\n });\n return result;\n }\n\n /**\n * The base implementation of `_.findIndex` and `_.findLastIndex` without\n * support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} predicate The function invoked per iteration.\n * @param {number} fromIndex The index to search from.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function baseFindIndex(array, predicate, fromIndex, fromRight) {\n var length = array.length,\n index = fromIndex + (fromRight ? 1 : -1);\n\n while ((fromRight ? index-- : ++index < length)) {\n if (predicate(array[index], index, array)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * The base implementation of `_.indexOf` without `fromIndex` bounds checks.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function baseIndexOf(array, value, fromIndex) {\n return value === value\n ? strictIndexOf(array, value, fromIndex)\n : baseFindIndex(array, baseIsNaN, fromIndex);\n }\n\n /**\n * This function is like `baseIndexOf` except that it accepts a comparator.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @param {Function} comparator The comparator invoked per element.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function baseIndexOfWith(array, value, fromIndex, comparator) {\n var index = fromIndex - 1,\n length = array.length;\n\n while (++index < length) {\n if (comparator(array[index], value)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * The base implementation of `_.isNaN` without support for number objects.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n */\n function baseIsNaN(value) {\n return value !== value;\n }\n\n /**\n * The base implementation of `_.mean` and `_.meanBy` without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {number} Returns the mean.\n */\n function baseMean(array, iteratee) {\n var length = array == null ? 0 : array.length;\n return length ? (baseSum(array, iteratee) / length) : NAN;\n }\n\n /**\n * The base implementation of `_.property` without support for deep paths.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @returns {Function} Returns the new accessor function.\n */\n function baseProperty(key) {\n return function(object) {\n return object == null ? undefined : object[key];\n };\n }\n\n /**\n * The base implementation of `_.propertyOf` without support for deep paths.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Function} Returns the new accessor function.\n */\n function basePropertyOf(object) {\n return function(key) {\n return object == null ? undefined : object[key];\n };\n }\n\n /**\n * The base implementation of `_.reduce` and `_.reduceRight`, without support\n * for iteratee shorthands, which iterates over `collection` using `eachFunc`.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} accumulator The initial value.\n * @param {boolean} initAccum Specify using the first or last element of\n * `collection` as the initial value.\n * @param {Function} eachFunc The function to iterate over `collection`.\n * @returns {*} Returns the accumulated value.\n */\n function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) {\n eachFunc(collection, function(value, index, collection) {\n accumulator = initAccum\n ? (initAccum = false, value)\n : iteratee(accumulator, value, index, collection);\n });\n return accumulator;\n }\n\n /**\n * The base implementation of `_.sortBy` which uses `comparer` to define the\n * sort order of `array` and replaces criteria objects with their corresponding\n * values.\n *\n * @private\n * @param {Array} array The array to sort.\n * @param {Function} comparer The function to define sort order.\n * @returns {Array} Returns `array`.\n */\n function baseSortBy(array, comparer) {\n var length = array.length;\n\n array.sort(comparer);\n while (length--) {\n array[length] = array[length].value;\n }\n return array;\n }\n\n /**\n * The base implementation of `_.sum` and `_.sumBy` without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {number} Returns the sum.\n */\n function baseSum(array, iteratee) {\n var result,\n index = -1,\n length = array.length;\n\n while (++index < length) {\n var current = iteratee(array[index]);\n if (current !== undefined) {\n result = result === undefined ? current : (result + current);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.times` without support for iteratee shorthands\n * or max array length checks.\n *\n * @private\n * @param {number} n The number of times to invoke `iteratee`.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the array of results.\n */\n function baseTimes(n, iteratee) {\n var index = -1,\n result = Array(n);\n\n while (++index < n) {\n result[index] = iteratee(index);\n }\n return result;\n }\n\n /**\n * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array\n * of key-value pairs for `object` corresponding to the property names of `props`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} props The property names to get values for.\n * @returns {Object} Returns the key-value pairs.\n */\n function baseToPairs(object, props) {\n return arrayMap(props, function(key) {\n return [key, object[key]];\n });\n }\n\n /**\n * The base implementation of `_.trim`.\n *\n * @private\n * @param {string} string The string to trim.\n * @returns {string} Returns the trimmed string.\n */\n function baseTrim(string) {\n return string\n ? string.slice(0, trimmedEndIndex(string) + 1).replace(reTrimStart, '')\n : string;\n }\n\n /**\n * The base implementation of `_.unary` without support for storing metadata.\n *\n * @private\n * @param {Function} func The function to cap arguments for.\n * @returns {Function} Returns the new capped function.\n */\n function baseUnary(func) {\n return function(value) {\n return func(value);\n };\n }\n\n /**\n * The base implementation of `_.values` and `_.valuesIn` which creates an\n * array of `object` property values corresponding to the property names\n * of `props`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} props The property names to get values for.\n * @returns {Object} Returns the array of property values.\n */\n function baseValues(object, props) {\n return arrayMap(props, function(key) {\n return object[key];\n });\n }\n\n /**\n * Checks if a `cache` value for `key` exists.\n *\n * @private\n * @param {Object} cache The cache to query.\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function cacheHas(cache, key) {\n return cache.has(key);\n }\n\n /**\n * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol\n * that is not found in the character symbols.\n *\n * @private\n * @param {Array} strSymbols The string symbols to inspect.\n * @param {Array} chrSymbols The character symbols to find.\n * @returns {number} Returns the index of the first unmatched string symbol.\n */\n function charsStartIndex(strSymbols, chrSymbols) {\n var index = -1,\n length = strSymbols.length;\n\n while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}\n return index;\n }\n\n /**\n * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol\n * that is not found in the character symbols.\n *\n * @private\n * @param {Array} strSymbols The string symbols to inspect.\n * @param {Array} chrSymbols The character symbols to find.\n * @returns {number} Returns the index of the last unmatched string symbol.\n */\n function charsEndIndex(strSymbols, chrSymbols) {\n var index = strSymbols.length;\n\n while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}\n return index;\n }\n\n /**\n * Gets the number of `placeholder` occurrences in `array`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} placeholder The placeholder to search for.\n * @returns {number} Returns the placeholder count.\n */\n function countHolders(array, placeholder) {\n var length = array.length,\n result = 0;\n\n while (length--) {\n if (array[length] === placeholder) {\n ++result;\n }\n }\n return result;\n }\n\n /**\n * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A\n * letters to basic Latin letters.\n *\n * @private\n * @param {string} letter The matched letter to deburr.\n * @returns {string} Returns the deburred letter.\n */\n var deburrLetter = basePropertyOf(deburredLetters);\n\n /**\n * Used by `_.escape` to convert characters to HTML entities.\n *\n * @private\n * @param {string} chr The matched character to escape.\n * @returns {string} Returns the escaped character.\n */\n var escapeHtmlChar = basePropertyOf(htmlEscapes);\n\n /**\n * Used by `_.template` to escape characters for inclusion in compiled string literals.\n *\n * @private\n * @param {string} chr The matched character to escape.\n * @returns {string} Returns the escaped character.\n */\n function escapeStringChar(chr) {\n return '\\\\' + stringEscapes[chr];\n }\n\n /**\n * Gets the value at `key` of `object`.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\n function getValue(object, key) {\n return object == null ? undefined : object[key];\n }\n\n /**\n * Checks if `string` contains Unicode symbols.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {boolean} Returns `true` if a symbol is found, else `false`.\n */\n function hasUnicode(string) {\n return reHasUnicode.test(string);\n }\n\n /**\n * Checks if `string` contains a word composed of Unicode symbols.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {boolean} Returns `true` if a word is found, else `false`.\n */\n function hasUnicodeWord(string) {\n return reHasUnicodeWord.test(string);\n }\n\n /**\n * Converts `iterator` to an array.\n *\n * @private\n * @param {Object} iterator The iterator to convert.\n * @returns {Array} Returns the converted array.\n */\n function iteratorToArray(iterator) {\n var data,\n result = [];\n\n while (!(data = iterator.next()).done) {\n result.push(data.value);\n }\n return result;\n }\n\n /**\n * Converts `map` to its key-value pairs.\n *\n * @private\n * @param {Object} map The map to convert.\n * @returns {Array} Returns the key-value pairs.\n */\n function mapToArray(map) {\n var index = -1,\n result = Array(map.size);\n\n map.forEach(function(value, key) {\n result[++index] = [key, value];\n });\n return result;\n }\n\n /**\n * Creates a unary function that invokes `func` with its argument transformed.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {Function} transform The argument transform.\n * @returns {Function} Returns the new function.\n */\n function overArg(func, transform) {\n return function(arg) {\n return func(transform(arg));\n };\n }\n\n /**\n * Replaces all `placeholder` elements in `array` with an internal placeholder\n * and returns an array of their indexes.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {*} placeholder The placeholder to replace.\n * @returns {Array} Returns the new array of placeholder indexes.\n */\n function replaceHolders(array, placeholder) {\n var index = -1,\n length = array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (value === placeholder || value === PLACEHOLDER) {\n array[index] = PLACEHOLDER;\n result[resIndex++] = index;\n }\n }\n return result;\n }\n\n /**\n * Converts `set` to an array of its values.\n *\n * @private\n * @param {Object} set The set to convert.\n * @returns {Array} Returns the values.\n */\n function setToArray(set) {\n var index = -1,\n result = Array(set.size);\n\n set.forEach(function(value) {\n result[++index] = value;\n });\n return result;\n }\n\n /**\n * Converts `set` to its value-value pairs.\n *\n * @private\n * @param {Object} set The set to convert.\n * @returns {Array} Returns the value-value pairs.\n */\n function setToPairs(set) {\n var index = -1,\n result = Array(set.size);\n\n set.forEach(function(value) {\n result[++index] = [value, value];\n });\n return result;\n }\n\n /**\n * A specialized version of `_.indexOf` which performs strict equality\n * comparisons of values, i.e. `===`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function strictIndexOf(array, value, fromIndex) {\n var index = fromIndex - 1,\n length = array.length;\n\n while (++index < length) {\n if (array[index] === value) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * A specialized version of `_.lastIndexOf` which performs strict equality\n * comparisons of values, i.e. `===`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function strictLastIndexOf(array, value, fromIndex) {\n var index = fromIndex + 1;\n while (index--) {\n if (array[index] === value) {\n return index;\n }\n }\n return index;\n }\n\n /**\n * Gets the number of symbols in `string`.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {number} Returns the string size.\n */\n function stringSize(string) {\n return hasUnicode(string)\n ? unicodeSize(string)\n : asciiSize(string);\n }\n\n /**\n * Converts `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\n function stringToArray(string) {\n return hasUnicode(string)\n ? unicodeToArray(string)\n : asciiToArray(string);\n }\n\n /**\n * Used by `_.trim` and `_.trimEnd` to get the index of the last non-whitespace\n * character of `string`.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {number} Returns the index of the last non-whitespace character.\n */\n function trimmedEndIndex(string) {\n var index = string.length;\n\n while (index-- && reWhitespace.test(string.charAt(index))) {}\n return index;\n }\n\n /**\n * Used by `_.unescape` to convert HTML entities to characters.\n *\n * @private\n * @param {string} chr The matched character to unescape.\n * @returns {string} Returns the unescaped character.\n */\n var unescapeHtmlChar = basePropertyOf(htmlUnescapes);\n\n /**\n * Gets the size of a Unicode `string`.\n *\n * @private\n * @param {string} string The string inspect.\n * @returns {number} Returns the string size.\n */\n function unicodeSize(string) {\n var result = reUnicode.lastIndex = 0;\n while (reUnicode.test(string)) {\n ++result;\n }\n return result;\n }\n\n /**\n * Converts a Unicode `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\n function unicodeToArray(string) {\n return string.match(reUnicode) || [];\n }\n\n /**\n * Splits a Unicode `string` into an array of its words.\n *\n * @private\n * @param {string} The string to inspect.\n * @returns {Array} Returns the words of `string`.\n */\n function unicodeWords(string) {\n return string.match(reUnicodeWord) || [];\n }\n\n /*--------------------------------------------------------------------------*/\n\n /**\n * Create a new pristine `lodash` function using the `context` object.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Util\n * @param {Object} [context=root] The context object.\n * @returns {Function} Returns a new `lodash` function.\n * @example\n *\n * _.mixin({ 'foo': _.constant('foo') });\n *\n * var lodash = _.runInContext();\n * lodash.mixin({ 'bar': lodash.constant('bar') });\n *\n * _.isFunction(_.foo);\n * // => true\n * _.isFunction(_.bar);\n * // => false\n *\n * lodash.isFunction(lodash.foo);\n * // => false\n * lodash.isFunction(lodash.bar);\n * // => true\n *\n * // Create a suped-up `defer` in Node.js.\n * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;\n */\n var runInContext = (function runInContext(context) {\n context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps));\n\n /** Built-in constructor references. */\n var Array = context.Array,\n Date = context.Date,\n Error = context.Error,\n Function = context.Function,\n Math = context.Math,\n Object = context.Object,\n RegExp = context.RegExp,\n String = context.String,\n TypeError = context.TypeError;\n\n /** Used for built-in method references. */\n var arrayProto = Array.prototype,\n funcProto = Function.prototype,\n objectProto = Object.prototype;\n\n /** Used to detect overreaching core-js shims. */\n var coreJsData = context['__core-js_shared__'];\n\n /** Used to resolve the decompiled source of functions. */\n var funcToString = funcProto.toString;\n\n /** Used to check objects for own properties. */\n var hasOwnProperty = objectProto.hasOwnProperty;\n\n /** Used to generate unique IDs. */\n var idCounter = 0;\n\n /** Used to detect methods masquerading as native. */\n var maskSrcKey = (function() {\n var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');\n return uid ? ('Symbol(src)_1.' + uid) : '';\n }());\n\n /**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\n var nativeObjectToString = objectProto.toString;\n\n /** Used to infer the `Object` constructor. */\n var objectCtorString = funcToString.call(Object);\n\n /** Used to restore the original `_` reference in `_.noConflict`. */\n var oldDash = root._;\n\n /** Used to detect if a method is native. */\n var reIsNative = RegExp('^' +\n funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\\\$&')\n .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n );\n\n /** Built-in value references. */\n var Buffer = moduleExports ? context.Buffer : undefined,\n Symbol = context.Symbol,\n Uint8Array = context.Uint8Array,\n allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined,\n getPrototype = overArg(Object.getPrototypeOf, Object),\n objectCreate = Object.create,\n propertyIsEnumerable = objectProto.propertyIsEnumerable,\n splice = arrayProto.splice,\n spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined,\n symIterator = Symbol ? Symbol.iterator : undefined,\n symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n var defineProperty = (function() {\n try {\n var func = getNative(Object, 'defineProperty');\n func({}, '', {});\n return func;\n } catch (e) {}\n }());\n\n /** Mocked built-ins. */\n var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout,\n ctxNow = Date && Date.now !== root.Date.now && Date.now,\n ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout;\n\n /* Built-in method references for those with the same name as other `lodash` methods. */\n var nativeCeil = Math.ceil,\n nativeFloor = Math.floor,\n nativeGetSymbols = Object.getOwnPropertySymbols,\n nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,\n nativeIsFinite = context.isFinite,\n nativeJoin = arrayProto.join,\n nativeKeys = overArg(Object.keys, Object),\n nativeMax = Math.max,\n nativeMin = Math.min,\n nativeNow = Date.now,\n nativeParseInt = context.parseInt,\n nativeRandom = Math.random,\n nativeReverse = arrayProto.reverse;\n\n /* Built-in method references that are verified to be native. */\n var DataView = getNative(context, 'DataView'),\n Map = getNative(context, 'Map'),\n Promise = getNative(context, 'Promise'),\n Set = getNative(context, 'Set'),\n WeakMap = getNative(context, 'WeakMap'),\n nativeCreate = getNative(Object, 'create');\n\n /** Used to store function metadata. */\n var metaMap = WeakMap && new WeakMap;\n\n /** Used to lookup unminified function names. */\n var realNames = {};\n\n /** Used to detect maps, sets, and weakmaps. */\n var dataViewCtorString = toSource(DataView),\n mapCtorString = toSource(Map),\n promiseCtorString = toSource(Promise),\n setCtorString = toSource(Set),\n weakMapCtorString = toSource(WeakMap);\n\n /** Used to convert symbols to primitives and strings. */\n var symbolProto = Symbol ? Symbol.prototype : undefined,\n symbolValueOf = symbolProto ? symbolProto.valueOf : undefined,\n symbolToString = symbolProto ? symbolProto.toString : undefined;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a `lodash` object which wraps `value` to enable implicit method\n * chain sequences. Methods that operate on and return arrays, collections,\n * and functions can be chained together. Methods that retrieve a single value\n * or may return a primitive value will automatically end the chain sequence\n * and return the unwrapped value. Otherwise, the value must be unwrapped\n * with `_#value`.\n *\n * Explicit chain sequences, which must be unwrapped with `_#value`, may be\n * enabled using `_.chain`.\n *\n * The execution of chained methods is lazy, that is, it's deferred until\n * `_#value` is implicitly or explicitly called.\n *\n * Lazy evaluation allows several methods to support shortcut fusion.\n * Shortcut fusion is an optimization to merge iteratee calls; this avoids\n * the creation of intermediate arrays and can greatly reduce the number of\n * iteratee executions. Sections of a chain sequence qualify for shortcut\n * fusion if the section is applied to an array and iteratees accept only\n * one argument. The heuristic for whether a section qualifies for shortcut\n * fusion is subject to change.\n *\n * Chaining is supported in custom builds as long as the `_#value` method is\n * directly or indirectly included in the build.\n *\n * In addition to lodash methods, wrappers have `Array` and `String` methods.\n *\n * The wrapper `Array` methods are:\n * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift`\n *\n * The wrapper `String` methods are:\n * `replace` and `split`\n *\n * The wrapper methods that support shortcut fusion are:\n * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`,\n * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`,\n * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray`\n *\n * The chainable wrapper methods are:\n * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`,\n * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`,\n * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`,\n * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`,\n * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`,\n * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`,\n * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`,\n * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`,\n * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`,\n * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`,\n * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`,\n * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`,\n * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`,\n * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`,\n * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`,\n * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`,\n * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`,\n * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`,\n * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`,\n * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`,\n * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`,\n * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`,\n * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`,\n * `zipObject`, `zipObjectDeep`, and `zipWith`\n *\n * The wrapper methods that are **not** chainable by default are:\n * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`,\n * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`,\n * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`,\n * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`,\n * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`,\n * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`,\n * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`,\n * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`,\n * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`,\n * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`,\n * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,\n * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,\n * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,\n * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,\n * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,\n * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,\n * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,\n * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,\n * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,\n * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,\n * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,\n * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,\n * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,\n * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,\n * `upperFirst`, `value`, and `words`\n *\n * @name _\n * @constructor\n * @category Seq\n * @param {*} value The value to wrap in a `lodash` instance.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * var wrapped = _([1, 2, 3]);\n *\n * // Returns an unwrapped value.\n * wrapped.reduce(_.add);\n * // => 6\n *\n * // Returns a wrapped value.\n * var squares = wrapped.map(square);\n *\n * _.isArray(squares);\n * // => false\n *\n * _.isArray(squares.value());\n * // => true\n */\n function lodash(value) {\n if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {\n if (value instanceof LodashWrapper) {\n return value;\n }\n if (hasOwnProperty.call(value, '__wrapped__')) {\n return wrapperClone(value);\n }\n }\n return new LodashWrapper(value);\n }\n\n /**\n * The base implementation of `_.create` without support for assigning\n * properties to the created object.\n *\n * @private\n * @param {Object} proto The object to inherit from.\n * @returns {Object} Returns the new object.\n */\n var baseCreate = (function() {\n function object() {}\n return function(proto) {\n if (!isObject(proto)) {\n return {};\n }\n if (objectCreate) {\n return objectCreate(proto);\n }\n object.prototype = proto;\n var result = new object;\n object.prototype = undefined;\n return result;\n };\n }());\n\n /**\n * The function whose prototype chain sequence wrappers inherit from.\n *\n * @private\n */\n function baseLodash() {\n // No operation performed.\n }\n\n /**\n * The base constructor for creating `lodash` wrapper objects.\n *\n * @private\n * @param {*} value The value to wrap.\n * @param {boolean} [chainAll] Enable explicit method chain sequences.\n */\n function LodashWrapper(value, chainAll) {\n this.__wrapped__ = value;\n this.__actions__ = [];\n this.__chain__ = !!chainAll;\n this.__index__ = 0;\n this.__values__ = undefined;\n }\n\n /**\n * By default, the template delimiters used by lodash are like those in\n * embedded Ruby (ERB) as well as ES2015 template strings. Change the\n * following template settings to use alternative delimiters.\n *\n * @static\n * @memberOf _\n * @type {Object}\n */\n lodash.templateSettings = {\n\n /**\n * Used to detect `data` property values to be HTML-escaped.\n *\n * @memberOf _.templateSettings\n * @type {RegExp}\n */\n 'escape': reEscape,\n\n /**\n * Used to detect code to be evaluated.\n *\n * @memberOf _.templateSettings\n * @type {RegExp}\n */\n 'evaluate': reEvaluate,\n\n /**\n * Used to detect `data` property values to inject.\n *\n * @memberOf _.templateSettings\n * @type {RegExp}\n */\n 'interpolate': reInterpolate,\n\n /**\n * Used to reference the data object in the template text.\n *\n * @memberOf _.templateSettings\n * @type {string}\n */\n 'variable': '',\n\n /**\n * Used to import variables into the compiled template.\n *\n * @memberOf _.templateSettings\n * @type {Object}\n */\n 'imports': {\n\n /**\n * A reference to the `lodash` function.\n *\n * @memberOf _.templateSettings.imports\n * @type {Function}\n */\n '_': lodash\n }\n };\n\n // Ensure wrappers are instances of `baseLodash`.\n lodash.prototype = baseLodash.prototype;\n lodash.prototype.constructor = lodash;\n\n LodashWrapper.prototype = baseCreate(baseLodash.prototype);\n LodashWrapper.prototype.constructor = LodashWrapper;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.\n *\n * @private\n * @constructor\n * @param {*} value The value to wrap.\n */\n function LazyWrapper(value) {\n this.__wrapped__ = value;\n this.__actions__ = [];\n this.__dir__ = 1;\n this.__filtered__ = false;\n this.__iteratees__ = [];\n this.__takeCount__ = MAX_ARRAY_LENGTH;\n this.__views__ = [];\n }\n\n /**\n * Creates a clone of the lazy wrapper object.\n *\n * @private\n * @name clone\n * @memberOf LazyWrapper\n * @returns {Object} Returns the cloned `LazyWrapper` object.\n */\n function lazyClone() {\n var result = new LazyWrapper(this.__wrapped__);\n result.__actions__ = copyArray(this.__actions__);\n result.__dir__ = this.__dir__;\n result.__filtered__ = this.__filtered__;\n result.__iteratees__ = copyArray(this.__iteratees__);\n result.__takeCount__ = this.__takeCount__;\n result.__views__ = copyArray(this.__views__);\n return result;\n }\n\n /**\n * Reverses the direction of lazy iteration.\n *\n * @private\n * @name reverse\n * @memberOf LazyWrapper\n * @returns {Object} Returns the new reversed `LazyWrapper` object.\n */\n function lazyReverse() {\n if (this.__filtered__) {\n var result = new LazyWrapper(this);\n result.__dir__ = -1;\n result.__filtered__ = true;\n } else {\n result = this.clone();\n result.__dir__ *= -1;\n }\n return result;\n }\n\n /**\n * Extracts the unwrapped value from its lazy wrapper.\n *\n * @private\n * @name value\n * @memberOf LazyWrapper\n * @returns {*} Returns the unwrapped value.\n */\n function lazyValue() {\n var array = this.__wrapped__.value(),\n dir = this.__dir__,\n isArr = isArray(array),\n isRight = dir < 0,\n arrLength = isArr ? array.length : 0,\n view = getView(0, arrLength, this.__views__),\n start = view.start,\n end = view.end,\n length = end - start,\n index = isRight ? end : (start - 1),\n iteratees = this.__iteratees__,\n iterLength = iteratees.length,\n resIndex = 0,\n takeCount = nativeMin(length, this.__takeCount__);\n\n if (!isArr || (!isRight && arrLength == length && takeCount == length)) {\n return baseWrapperValue(array, this.__actions__);\n }\n var result = [];\n\n outer:\n while (length-- && resIndex < takeCount) {\n index += dir;\n\n var iterIndex = -1,\n value = array[index];\n\n while (++iterIndex < iterLength) {\n var data = iteratees[iterIndex],\n iteratee = data.iteratee,\n type = data.type,\n computed = iteratee(value);\n\n if (type == LAZY_MAP_FLAG) {\n value = computed;\n } else if (!computed) {\n if (type == LAZY_FILTER_FLAG) {\n continue outer;\n } else {\n break outer;\n }\n }\n }\n result[resIndex++] = value;\n }\n return result;\n }\n\n // Ensure `LazyWrapper` is an instance of `baseLodash`.\n LazyWrapper.prototype = baseCreate(baseLodash.prototype);\n LazyWrapper.prototype.constructor = LazyWrapper;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a hash object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function Hash(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n }\n\n /**\n * Removes all key-value entries from the hash.\n *\n * @private\n * @name clear\n * @memberOf Hash\n */\n function hashClear() {\n this.__data__ = nativeCreate ? nativeCreate(null) : {};\n this.size = 0;\n }\n\n /**\n * Removes `key` and its value from the hash.\n *\n * @private\n * @name delete\n * @memberOf Hash\n * @param {Object} hash The hash to modify.\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function hashDelete(key) {\n var result = this.has(key) && delete this.__data__[key];\n this.size -= result ? 1 : 0;\n return result;\n }\n\n /**\n * Gets the hash value for `key`.\n *\n * @private\n * @name get\n * @memberOf Hash\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function hashGet(key) {\n var data = this.__data__;\n if (nativeCreate) {\n var result = data[key];\n return result === HASH_UNDEFINED ? undefined : result;\n }\n return hasOwnProperty.call(data, key) ? data[key] : undefined;\n }\n\n /**\n * Checks if a hash value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Hash\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function hashHas(key) {\n var data = this.__data__;\n return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);\n }\n\n /**\n * Sets the hash `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Hash\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the hash instance.\n */\n function hashSet(key, value) {\n var data = this.__data__;\n this.size += this.has(key) ? 0 : 1;\n data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;\n return this;\n }\n\n // Add methods to `Hash`.\n Hash.prototype.clear = hashClear;\n Hash.prototype['delete'] = hashDelete;\n Hash.prototype.get = hashGet;\n Hash.prototype.has = hashHas;\n Hash.prototype.set = hashSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an list cache object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function ListCache(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n }\n\n /**\n * Removes all key-value entries from the list cache.\n *\n * @private\n * @name clear\n * @memberOf ListCache\n */\n function listCacheClear() {\n this.__data__ = [];\n this.size = 0;\n }\n\n /**\n * Removes `key` and its value from the list cache.\n *\n * @private\n * @name delete\n * @memberOf ListCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function listCacheDelete(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n return false;\n }\n var lastIndex = data.length - 1;\n if (index == lastIndex) {\n data.pop();\n } else {\n splice.call(data, index, 1);\n }\n --this.size;\n return true;\n }\n\n /**\n * Gets the list cache value for `key`.\n *\n * @private\n * @name get\n * @memberOf ListCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function listCacheGet(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n return index < 0 ? undefined : data[index][1];\n }\n\n /**\n * Checks if a list cache value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf ListCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function listCacheHas(key) {\n return assocIndexOf(this.__data__, key) > -1;\n }\n\n /**\n * Sets the list cache `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf ListCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the list cache instance.\n */\n function listCacheSet(key, value) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n ++this.size;\n data.push([key, value]);\n } else {\n data[index][1] = value;\n }\n return this;\n }\n\n // Add methods to `ListCache`.\n ListCache.prototype.clear = listCacheClear;\n ListCache.prototype['delete'] = listCacheDelete;\n ListCache.prototype.get = listCacheGet;\n ListCache.prototype.has = listCacheHas;\n ListCache.prototype.set = listCacheSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a map cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function MapCache(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n }\n\n /**\n * Removes all key-value entries from the map.\n *\n * @private\n * @name clear\n * @memberOf MapCache\n */\n function mapCacheClear() {\n this.size = 0;\n this.__data__ = {\n 'hash': new Hash,\n 'map': new (Map || ListCache),\n 'string': new Hash\n };\n }\n\n /**\n * Removes `key` and its value from the map.\n *\n * @private\n * @name delete\n * @memberOf MapCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function mapCacheDelete(key) {\n var result = getMapData(this, key)['delete'](key);\n this.size -= result ? 1 : 0;\n return result;\n }\n\n /**\n * Gets the map value for `key`.\n *\n * @private\n * @name get\n * @memberOf MapCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function mapCacheGet(key) {\n return getMapData(this, key).get(key);\n }\n\n /**\n * Checks if a map value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf MapCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function mapCacheHas(key) {\n return getMapData(this, key).has(key);\n }\n\n /**\n * Sets the map `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf MapCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the map cache instance.\n */\n function mapCacheSet(key, value) {\n var data = getMapData(this, key),\n size = data.size;\n\n data.set(key, value);\n this.size += data.size == size ? 0 : 1;\n return this;\n }\n\n // Add methods to `MapCache`.\n MapCache.prototype.clear = mapCacheClear;\n MapCache.prototype['delete'] = mapCacheDelete;\n MapCache.prototype.get = mapCacheGet;\n MapCache.prototype.has = mapCacheHas;\n MapCache.prototype.set = mapCacheSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n *\n * Creates an array cache object to store unique values.\n *\n * @private\n * @constructor\n * @param {Array} [values] The values to cache.\n */\n function SetCache(values) {\n var index = -1,\n length = values == null ? 0 : values.length;\n\n this.__data__ = new MapCache;\n while (++index < length) {\n this.add(values[index]);\n }\n }\n\n /**\n * Adds `value` to the array cache.\n *\n * @private\n * @name add\n * @memberOf SetCache\n * @alias push\n * @param {*} value The value to cache.\n * @returns {Object} Returns the cache instance.\n */\n function setCacheAdd(value) {\n this.__data__.set(value, HASH_UNDEFINED);\n return this;\n }\n\n /**\n * Checks if `value` is in the array cache.\n *\n * @private\n * @name has\n * @memberOf SetCache\n * @param {*} value The value to search for.\n * @returns {number} Returns `true` if `value` is found, else `false`.\n */\n function setCacheHas(value) {\n return this.__data__.has(value);\n }\n\n // Add methods to `SetCache`.\n SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;\n SetCache.prototype.has = setCacheHas;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a stack cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function Stack(entries) {\n var data = this.__data__ = new ListCache(entries);\n this.size = data.size;\n }\n\n /**\n * Removes all key-value entries from the stack.\n *\n * @private\n * @name clear\n * @memberOf Stack\n */\n function stackClear() {\n this.__data__ = new ListCache;\n this.size = 0;\n }\n\n /**\n * Removes `key` and its value from the stack.\n *\n * @private\n * @name delete\n * @memberOf Stack\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function stackDelete(key) {\n var data = this.__data__,\n result = data['delete'](key);\n\n this.size = data.size;\n return result;\n }\n\n /**\n * Gets the stack value for `key`.\n *\n * @private\n * @name get\n * @memberOf Stack\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function stackGet(key) {\n return this.__data__.get(key);\n }\n\n /**\n * Checks if a stack value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Stack\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function stackHas(key) {\n return this.__data__.has(key);\n }\n\n /**\n * Sets the stack `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Stack\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the stack cache instance.\n */\n function stackSet(key, value) {\n var data = this.__data__;\n if (data instanceof ListCache) {\n var pairs = data.__data__;\n if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {\n pairs.push([key, value]);\n this.size = ++data.size;\n return this;\n }\n data = this.__data__ = new MapCache(pairs);\n }\n data.set(key, value);\n this.size = data.size;\n return this;\n }\n\n // Add methods to `Stack`.\n Stack.prototype.clear = stackClear;\n Stack.prototype['delete'] = stackDelete;\n Stack.prototype.get = stackGet;\n Stack.prototype.has = stackHas;\n Stack.prototype.set = stackSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an array of the enumerable property names of the array-like `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @param {boolean} inherited Specify returning inherited property names.\n * @returns {Array} Returns the array of property names.\n */\n function arrayLikeKeys(value, inherited) {\n var isArr = isArray(value),\n isArg = !isArr && isArguments(value),\n isBuff = !isArr && !isArg && isBuffer(value),\n isType = !isArr && !isArg && !isBuff && isTypedArray(value),\n skipIndexes = isArr || isArg || isBuff || isType,\n result = skipIndexes ? baseTimes(value.length, String) : [],\n length = result.length;\n\n for (var key in value) {\n if ((inherited || hasOwnProperty.call(value, key)) &&\n !(skipIndexes && (\n // Safari 9 has enumerable `arguments.length` in strict mode.\n key == 'length' ||\n // Node.js 0.10 has enumerable non-index properties on buffers.\n (isBuff && (key == 'offset' || key == 'parent')) ||\n // PhantomJS 2 has enumerable non-index properties on typed arrays.\n (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||\n // Skip index properties.\n isIndex(key, length)\n ))) {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * A specialized version of `_.sample` for arrays.\n *\n * @private\n * @param {Array} array The array to sample.\n * @returns {*} Returns the random element.\n */\n function arraySample(array) {\n var length = array.length;\n return length ? array[baseRandom(0, length - 1)] : undefined;\n }\n\n /**\n * A specialized version of `_.sampleSize` for arrays.\n *\n * @private\n * @param {Array} array The array to sample.\n * @param {number} n The number of elements to sample.\n * @returns {Array} Returns the random elements.\n */\n function arraySampleSize(array, n) {\n return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length));\n }\n\n /**\n * A specialized version of `_.shuffle` for arrays.\n *\n * @private\n * @param {Array} array The array to shuffle.\n * @returns {Array} Returns the new shuffled array.\n */\n function arrayShuffle(array) {\n return shuffleSelf(copyArray(array));\n }\n\n /**\n * This function is like `assignValue` except that it doesn't assign\n * `undefined` values.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\n function assignMergeValue(object, key, value) {\n if ((value !== undefined && !eq(object[key], value)) ||\n (value === undefined && !(key in object))) {\n baseAssignValue(object, key, value);\n }\n }\n\n /**\n * Assigns `value` to `key` of `object` if the existing value is not equivalent\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\n function assignValue(object, key, value) {\n var objValue = object[key];\n if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||\n (value === undefined && !(key in object))) {\n baseAssignValue(object, key, value);\n }\n }\n\n /**\n * Gets the index at which the `key` is found in `array` of key-value pairs.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} key The key to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function assocIndexOf(array, key) {\n var length = array.length;\n while (length--) {\n if (eq(array[length][0], key)) {\n return length;\n }\n }\n return -1;\n }\n\n /**\n * Aggregates elements of `collection` on `accumulator` with keys transformed\n * by `iteratee` and values set by `setter`.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} setter The function to set `accumulator` values.\n * @param {Function} iteratee The iteratee to transform keys.\n * @param {Object} accumulator The initial aggregated object.\n * @returns {Function} Returns `accumulator`.\n */\n function baseAggregator(collection, setter, iteratee, accumulator) {\n baseEach(collection, function(value, key, collection) {\n setter(accumulator, value, iteratee(value), collection);\n });\n return accumulator;\n }\n\n /**\n * The base implementation of `_.assign` without support for multiple sources\n * or `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @returns {Object} Returns `object`.\n */\n function baseAssign(object, source) {\n return object && copyObject(source, keys(source), object);\n }\n\n /**\n * The base implementation of `_.assignIn` without support for multiple sources\n * or `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @returns {Object} Returns `object`.\n */\n function baseAssignIn(object, source) {\n return object && copyObject(source, keysIn(source), object);\n }\n\n /**\n * The base implementation of `assignValue` and `assignMergeValue` without\n * value checks.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\n function baseAssignValue(object, key, value) {\n if (key == '__proto__' && defineProperty) {\n defineProperty(object, key, {\n 'configurable': true,\n 'enumerable': true,\n 'value': value,\n 'writable': true\n });\n } else {\n object[key] = value;\n }\n }\n\n /**\n * The base implementation of `_.at` without support for individual paths.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {string[]} paths The property paths to pick.\n * @returns {Array} Returns the picked elements.\n */\n function baseAt(object, paths) {\n var index = -1,\n length = paths.length,\n result = Array(length),\n skip = object == null;\n\n while (++index < length) {\n result[index] = skip ? undefined : get(object, paths[index]);\n }\n return result;\n }\n\n /**\n * The base implementation of `_.clamp` which doesn't coerce arguments.\n *\n * @private\n * @param {number} number The number to clamp.\n * @param {number} [lower] The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the clamped number.\n */\n function baseClamp(number, lower, upper) {\n if (number === number) {\n if (upper !== undefined) {\n number = number <= upper ? number : upper;\n }\n if (lower !== undefined) {\n number = number >= lower ? number : lower;\n }\n }\n return number;\n }\n\n /**\n * The base implementation of `_.clone` and `_.cloneDeep` which tracks\n * traversed objects.\n *\n * @private\n * @param {*} value The value to clone.\n * @param {boolean} bitmask The bitmask flags.\n * 1 - Deep clone\n * 2 - Flatten inherited properties\n * 4 - Clone symbols\n * @param {Function} [customizer] The function to customize cloning.\n * @param {string} [key] The key of `value`.\n * @param {Object} [object] The parent object of `value`.\n * @param {Object} [stack] Tracks traversed objects and their clone counterparts.\n * @returns {*} Returns the cloned value.\n */\n function baseClone(value, bitmask, customizer, key, object, stack) {\n var result,\n isDeep = bitmask & CLONE_DEEP_FLAG,\n isFlat = bitmask & CLONE_FLAT_FLAG,\n isFull = bitmask & CLONE_SYMBOLS_FLAG;\n\n if (customizer) {\n result = object ? customizer(value, key, object, stack) : customizer(value);\n }\n if (result !== undefined) {\n return result;\n }\n if (!isObject(value)) {\n return value;\n }\n var isArr = isArray(value);\n if (isArr) {\n result = initCloneArray(value);\n if (!isDeep) {\n return copyArray(value, result);\n }\n } else {\n var tag = getTag(value),\n isFunc = tag == funcTag || tag == genTag;\n\n if (isBuffer(value)) {\n return cloneBuffer(value, isDeep);\n }\n if (tag == objectTag || tag == argsTag || (isFunc && !object)) {\n result = (isFlat || isFunc) ? {} : initCloneObject(value);\n if (!isDeep) {\n return isFlat\n ? copySymbolsIn(value, baseAssignIn(result, value))\n : copySymbols(value, baseAssign(result, value));\n }\n } else {\n if (!cloneableTags[tag]) {\n return object ? value : {};\n }\n result = initCloneByTag(value, tag, isDeep);\n }\n }\n // Check for circular references and return its corresponding clone.\n stack || (stack = new Stack);\n var stacked = stack.get(value);\n if (stacked) {\n return stacked;\n }\n stack.set(value, result);\n\n if (isSet(value)) {\n value.forEach(function(subValue) {\n result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack));\n });\n } else if (isMap(value)) {\n value.forEach(function(subValue, key) {\n result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack));\n });\n }\n\n var keysFunc = isFull\n ? (isFlat ? getAllKeysIn : getAllKeys)\n : (isFlat ? keysIn : keys);\n\n var props = isArr ? undefined : keysFunc(value);\n arrayEach(props || value, function(subValue, key) {\n if (props) {\n key = subValue;\n subValue = value[key];\n }\n // Recursively populate clone (susceptible to call stack limits).\n assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));\n });\n return result;\n }\n\n /**\n * The base implementation of `_.conforms` which doesn't clone `source`.\n *\n * @private\n * @param {Object} source The object of property predicates to conform to.\n * @returns {Function} Returns the new spec function.\n */\n function baseConforms(source) {\n var props = keys(source);\n return function(object) {\n return baseConformsTo(object, source, props);\n };\n }\n\n /**\n * The base implementation of `_.conformsTo` which accepts `props` to check.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property predicates to conform to.\n * @returns {boolean} Returns `true` if `object` conforms, else `false`.\n */\n function baseConformsTo(object, source, props) {\n var length = props.length;\n if (object == null) {\n return !length;\n }\n object = Object(object);\n while (length--) {\n var key = props[length],\n predicate = source[key],\n value = object[key];\n\n if ((value === undefined && !(key in object)) || !predicate(value)) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * The base implementation of `_.delay` and `_.defer` which accepts `args`\n * to provide to `func`.\n *\n * @private\n * @param {Function} func The function to delay.\n * @param {number} wait The number of milliseconds to delay invocation.\n * @param {Array} args The arguments to provide to `func`.\n * @returns {number|Object} Returns the timer id or timeout object.\n */\n function baseDelay(func, wait, args) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n return setTimeout(function() { func.apply(undefined, args); }, wait);\n }\n\n /**\n * The base implementation of methods like `_.difference` without support\n * for excluding multiple arrays or iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Array} values The values to exclude.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n */\n function baseDifference(array, values, iteratee, comparator) {\n var index = -1,\n includes = arrayIncludes,\n isCommon = true,\n length = array.length,\n result = [],\n valuesLength = values.length;\n\n if (!length) {\n return result;\n }\n if (iteratee) {\n values = arrayMap(values, baseUnary(iteratee));\n }\n if (comparator) {\n includes = arrayIncludesWith;\n isCommon = false;\n }\n else if (values.length >= LARGE_ARRAY_SIZE) {\n includes = cacheHas;\n isCommon = false;\n values = new SetCache(values);\n }\n outer:\n while (++index < length) {\n var value = array[index],\n computed = iteratee == null ? value : iteratee(value);\n\n value = (comparator || value !== 0) ? value : 0;\n if (isCommon && computed === computed) {\n var valuesIndex = valuesLength;\n while (valuesIndex--) {\n if (values[valuesIndex] === computed) {\n continue outer;\n }\n }\n result.push(value);\n }\n else if (!includes(values, computed, comparator)) {\n result.push(value);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.forEach` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n */\n var baseEach = createBaseEach(baseForOwn);\n\n /**\n * The base implementation of `_.forEachRight` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n */\n var baseEachRight = createBaseEach(baseForOwnRight, true);\n\n /**\n * The base implementation of `_.every` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if all elements pass the predicate check,\n * else `false`\n */\n function baseEvery(collection, predicate) {\n var result = true;\n baseEach(collection, function(value, index, collection) {\n result = !!predicate(value, index, collection);\n return result;\n });\n return result;\n }\n\n /**\n * The base implementation of methods like `_.max` and `_.min` which accepts a\n * `comparator` to determine the extremum value.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The iteratee invoked per iteration.\n * @param {Function} comparator The comparator used to compare values.\n * @returns {*} Returns the extremum value.\n */\n function baseExtremum(array, iteratee, comparator) {\n var index = -1,\n length = array.length;\n\n while (++index < length) {\n var value = array[index],\n current = iteratee(value);\n\n if (current != null && (computed === undefined\n ? (current === current && !isSymbol(current))\n : comparator(current, computed)\n )) {\n var computed = current,\n result = value;\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.fill` without an iteratee call guard.\n *\n * @private\n * @param {Array} array The array to fill.\n * @param {*} value The value to fill `array` with.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns `array`.\n */\n function baseFill(array, value, start, end) {\n var length = array.length;\n\n start = toInteger(start);\n if (start < 0) {\n start = -start > length ? 0 : (length + start);\n }\n end = (end === undefined || end > length) ? length : toInteger(end);\n if (end < 0) {\n end += length;\n }\n end = start > end ? 0 : toLength(end);\n while (start < end) {\n array[start++] = value;\n }\n return array;\n }\n\n /**\n * The base implementation of `_.filter` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n */\n function baseFilter(collection, predicate) {\n var result = [];\n baseEach(collection, function(value, index, collection) {\n if (predicate(value, index, collection)) {\n result.push(value);\n }\n });\n return result;\n }\n\n /**\n * The base implementation of `_.flatten` with support for restricting flattening.\n *\n * @private\n * @param {Array} array The array to flatten.\n * @param {number} depth The maximum recursion depth.\n * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.\n * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.\n * @param {Array} [result=[]] The initial result value.\n * @returns {Array} Returns the new flattened array.\n */\n function baseFlatten(array, depth, predicate, isStrict, result) {\n var index = -1,\n length = array.length;\n\n predicate || (predicate = isFlattenable);\n result || (result = []);\n\n while (++index < length) {\n var value = array[index];\n if (depth > 0 && predicate(value)) {\n if (depth > 1) {\n // Recursively flatten arrays (susceptible to call stack limits).\n baseFlatten(value, depth - 1, predicate, isStrict, result);\n } else {\n arrayPush(result, value);\n }\n } else if (!isStrict) {\n result[result.length] = value;\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `baseForOwn` which iterates over `object`\n * properties returned by `keysFunc` and invokes `iteratee` for each property.\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\n var baseFor = createBaseFor();\n\n /**\n * This function is like `baseFor` except that it iterates over properties\n * in the opposite order.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\n var baseForRight = createBaseFor(true);\n\n /**\n * The base implementation of `_.forOwn` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Object} Returns `object`.\n */\n function baseForOwn(object, iteratee) {\n return object && baseFor(object, iteratee, keys);\n }\n\n /**\n * The base implementation of `_.forOwnRight` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Object} Returns `object`.\n */\n function baseForOwnRight(object, iteratee) {\n return object && baseForRight(object, iteratee, keys);\n }\n\n /**\n * The base implementation of `_.functions` which creates an array of\n * `object` function property names filtered from `props`.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Array} props The property names to filter.\n * @returns {Array} Returns the function names.\n */\n function baseFunctions(object, props) {\n return arrayFilter(props, function(key) {\n return isFunction(object[key]);\n });\n }\n\n /**\n * The base implementation of `_.get` without support for default values.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @returns {*} Returns the resolved value.\n */\n function baseGet(object, path) {\n path = castPath(path, object);\n\n var index = 0,\n length = path.length;\n\n while (object != null && index < length) {\n object = object[toKey(path[index++])];\n }\n return (index && index == length) ? object : undefined;\n }\n\n /**\n * The base implementation of `getAllKeys` and `getAllKeysIn` which uses\n * `keysFunc` and `symbolsFunc` to get the enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @param {Function} symbolsFunc The function to get the symbols of `object`.\n * @returns {Array} Returns the array of property names and symbols.\n */\n function baseGetAllKeys(object, keysFunc, symbolsFunc) {\n var result = keysFunc(object);\n return isArray(object) ? result : arrayPush(result, symbolsFunc(object));\n }\n\n /**\n * The base implementation of `getTag` without fallbacks for buggy environments.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\n function baseGetTag(value) {\n if (value == null) {\n return value === undefined ? undefinedTag : nullTag;\n }\n return (symToStringTag && symToStringTag in Object(value))\n ? getRawTag(value)\n : objectToString(value);\n }\n\n /**\n * The base implementation of `_.gt` which doesn't coerce arguments.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than `other`,\n * else `false`.\n */\n function baseGt(value, other) {\n return value > other;\n }\n\n /**\n * The base implementation of `_.has` without support for deep paths.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {Array|string} key The key to check.\n * @returns {boolean} Returns `true` if `key` exists, else `false`.\n */\n function baseHas(object, key) {\n return object != null && hasOwnProperty.call(object, key);\n }\n\n /**\n * The base implementation of `_.hasIn` without support for deep paths.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {Array|string} key The key to check.\n * @returns {boolean} Returns `true` if `key` exists, else `false`.\n */\n function baseHasIn(object, key) {\n return object != null && key in Object(object);\n }\n\n /**\n * The base implementation of `_.inRange` which doesn't coerce arguments.\n *\n * @private\n * @param {number} number The number to check.\n * @param {number} start The start of the range.\n * @param {number} end The end of the range.\n * @returns {boolean} Returns `true` if `number` is in the range, else `false`.\n */\n function baseInRange(number, start, end) {\n return number >= nativeMin(start, end) && number < nativeMax(start, end);\n }\n\n /**\n * The base implementation of methods like `_.intersection`, without support\n * for iteratee shorthands, that accepts an array of arrays to inspect.\n *\n * @private\n * @param {Array} arrays The arrays to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of shared values.\n */\n function baseIntersection(arrays, iteratee, comparator) {\n var includes = comparator ? arrayIncludesWith : arrayIncludes,\n length = arrays[0].length,\n othLength = arrays.length,\n othIndex = othLength,\n caches = Array(othLength),\n maxLength = Infinity,\n result = [];\n\n while (othIndex--) {\n var array = arrays[othIndex];\n if (othIndex && iteratee) {\n array = arrayMap(array, baseUnary(iteratee));\n }\n maxLength = nativeMin(array.length, maxLength);\n caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120))\n ? new SetCache(othIndex && array)\n : undefined;\n }\n array = arrays[0];\n\n var index = -1,\n seen = caches[0];\n\n outer:\n while (++index < length && result.length < maxLength) {\n var value = array[index],\n computed = iteratee ? iteratee(value) : value;\n\n value = (comparator || value !== 0) ? value : 0;\n if (!(seen\n ? cacheHas(seen, computed)\n : includes(result, computed, comparator)\n )) {\n othIndex = othLength;\n while (--othIndex) {\n var cache = caches[othIndex];\n if (!(cache\n ? cacheHas(cache, computed)\n : includes(arrays[othIndex], computed, comparator))\n ) {\n continue outer;\n }\n }\n if (seen) {\n seen.push(computed);\n }\n result.push(value);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.invert` and `_.invertBy` which inverts\n * `object` with values transformed by `iteratee` and set by `setter`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} setter The function to set `accumulator` values.\n * @param {Function} iteratee The iteratee to transform values.\n * @param {Object} accumulator The initial inverted object.\n * @returns {Function} Returns `accumulator`.\n */\n function baseInverter(object, setter, iteratee, accumulator) {\n baseForOwn(object, function(value, key, object) {\n setter(accumulator, iteratee(value), key, object);\n });\n return accumulator;\n }\n\n /**\n * The base implementation of `_.invoke` without support for individual\n * method arguments.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the method to invoke.\n * @param {Array} args The arguments to invoke the method with.\n * @returns {*} Returns the result of the invoked method.\n */\n function baseInvoke(object, path, args) {\n path = castPath(path, object);\n object = parent(object, path);\n var func = object == null ? object : object[toKey(last(path))];\n return func == null ? undefined : apply(func, object, args);\n }\n\n /**\n * The base implementation of `_.isArguments`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n */\n function baseIsArguments(value) {\n return isObjectLike(value) && baseGetTag(value) == argsTag;\n }\n\n /**\n * The base implementation of `_.isArrayBuffer` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.\n */\n function baseIsArrayBuffer(value) {\n return isObjectLike(value) && baseGetTag(value) == arrayBufferTag;\n }\n\n /**\n * The base implementation of `_.isDate` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a date object, else `false`.\n */\n function baseIsDate(value) {\n return isObjectLike(value) && baseGetTag(value) == dateTag;\n }\n\n /**\n * The base implementation of `_.isEqual` which supports partial comparisons\n * and tracks traversed objects.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {boolean} bitmask The bitmask flags.\n * 1 - Unordered comparison\n * 2 - Partial comparison\n * @param {Function} [customizer] The function to customize comparisons.\n * @param {Object} [stack] Tracks traversed `value` and `other` objects.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n */\n function baseIsEqual(value, other, bitmask, customizer, stack) {\n if (value === other) {\n return true;\n }\n if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {\n return value !== value && other !== other;\n }\n return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);\n }\n\n /**\n * A specialized version of `baseIsEqual` for arrays and objects which performs\n * deep comparisons and tracks traversed objects enabling objects with circular\n * references to be compared.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} [stack] Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\n function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {\n var objIsArr = isArray(object),\n othIsArr = isArray(other),\n objTag = objIsArr ? arrayTag : getTag(object),\n othTag = othIsArr ? arrayTag : getTag(other);\n\n objTag = objTag == argsTag ? objectTag : objTag;\n othTag = othTag == argsTag ? objectTag : othTag;\n\n var objIsObj = objTag == objectTag,\n othIsObj = othTag == objectTag,\n isSameTag = objTag == othTag;\n\n if (isSameTag && isBuffer(object)) {\n if (!isBuffer(other)) {\n return false;\n }\n objIsArr = true;\n objIsObj = false;\n }\n if (isSameTag && !objIsObj) {\n stack || (stack = new Stack);\n return (objIsArr || isTypedArray(object))\n ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)\n : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);\n }\n if (!(bitmask & COMPARE_PARTIAL_FLAG)) {\n var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),\n othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');\n\n if (objIsWrapped || othIsWrapped) {\n var objUnwrapped = objIsWrapped ? object.value() : object,\n othUnwrapped = othIsWrapped ? other.value() : other;\n\n stack || (stack = new Stack);\n return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);\n }\n }\n if (!isSameTag) {\n return false;\n }\n stack || (stack = new Stack);\n return equalObjects(object, other, bitmask, customizer, equalFunc, stack);\n }\n\n /**\n * The base implementation of `_.isMap` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n */\n function baseIsMap(value) {\n return isObjectLike(value) && getTag(value) == mapTag;\n }\n\n /**\n * The base implementation of `_.isMatch` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @param {Array} matchData The property names, values, and compare flags to match.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n */\n function baseIsMatch(object, source, matchData, customizer) {\n var index = matchData.length,\n length = index,\n noCustomizer = !customizer;\n\n if (object == null) {\n return !length;\n }\n object = Object(object);\n while (index--) {\n var data = matchData[index];\n if ((noCustomizer && data[2])\n ? data[1] !== object[data[0]]\n : !(data[0] in object)\n ) {\n return false;\n }\n }\n while (++index < length) {\n data = matchData[index];\n var key = data[0],\n objValue = object[key],\n srcValue = data[1];\n\n if (noCustomizer && data[2]) {\n if (objValue === undefined && !(key in object)) {\n return false;\n }\n } else {\n var stack = new Stack;\n if (customizer) {\n var result = customizer(objValue, srcValue, key, object, source, stack);\n }\n if (!(result === undefined\n ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack)\n : result\n )) {\n return false;\n }\n }\n }\n return true;\n }\n\n /**\n * The base implementation of `_.isNative` without bad shim checks.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n */\n function baseIsNative(value) {\n if (!isObject(value) || isMasked(value)) {\n return false;\n }\n var pattern = isFunction(value) ? reIsNative : reIsHostCtor;\n return pattern.test(toSource(value));\n }\n\n /**\n * The base implementation of `_.isRegExp` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.\n */\n function baseIsRegExp(value) {\n return isObjectLike(value) && baseGetTag(value) == regexpTag;\n }\n\n /**\n * The base implementation of `_.isSet` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n */\n function baseIsSet(value) {\n return isObjectLike(value) && getTag(value) == setTag;\n }\n\n /**\n * The base implementation of `_.isTypedArray` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n */\n function baseIsTypedArray(value) {\n return isObjectLike(value) &&\n isLength(value.length) && !!typedArrayTags[baseGetTag(value)];\n }\n\n /**\n * The base implementation of `_.iteratee`.\n *\n * @private\n * @param {*} [value=_.identity] The value to convert to an iteratee.\n * @returns {Function} Returns the iteratee.\n */\n function baseIteratee(value) {\n // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.\n // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.\n if (typeof value == 'function') {\n return value;\n }\n if (value == null) {\n return identity;\n }\n if (typeof value == 'object') {\n return isArray(value)\n ? baseMatchesProperty(value[0], value[1])\n : baseMatches(value);\n }\n return property(value);\n }\n\n /**\n * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\n function baseKeys(object) {\n if (!isPrototype(object)) {\n return nativeKeys(object);\n }\n var result = [];\n for (var key in Object(object)) {\n if (hasOwnProperty.call(object, key) && key != 'constructor') {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\n function baseKeysIn(object) {\n if (!isObject(object)) {\n return nativeKeysIn(object);\n }\n var isProto = isPrototype(object),\n result = [];\n\n for (var key in object) {\n if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.lt` which doesn't coerce arguments.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than `other`,\n * else `false`.\n */\n function baseLt(value, other) {\n return value < other;\n }\n\n /**\n * The base implementation of `_.map` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n */\n function baseMap(collection, iteratee) {\n var index = -1,\n result = isArrayLike(collection) ? Array(collection.length) : [];\n\n baseEach(collection, function(value, key, collection) {\n result[++index] = iteratee(value, key, collection);\n });\n return result;\n }\n\n /**\n * The base implementation of `_.matches` which doesn't clone `source`.\n *\n * @private\n * @param {Object} source The object of property values to match.\n * @returns {Function} Returns the new spec function.\n */\n function baseMatches(source) {\n var matchData = getMatchData(source);\n if (matchData.length == 1 && matchData[0][2]) {\n return matchesStrictComparable(matchData[0][0], matchData[0][1]);\n }\n return function(object) {\n return object === source || baseIsMatch(object, source, matchData);\n };\n }\n\n /**\n * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.\n *\n * @private\n * @param {string} path The path of the property to get.\n * @param {*} srcValue The value to match.\n * @returns {Function} Returns the new spec function.\n */\n function baseMatchesProperty(path, srcValue) {\n if (isKey(path) && isStrictComparable(srcValue)) {\n return matchesStrictComparable(toKey(path), srcValue);\n }\n return function(object) {\n var objValue = get(object, path);\n return (objValue === undefined && objValue === srcValue)\n ? hasIn(object, path)\n : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG);\n };\n }\n\n /**\n * The base implementation of `_.merge` without support for multiple sources.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {number} srcIndex The index of `source`.\n * @param {Function} [customizer] The function to customize merged values.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n */\n function baseMerge(object, source, srcIndex, customizer, stack) {\n if (object === source) {\n return;\n }\n baseFor(source, function(srcValue, key) {\n stack || (stack = new Stack);\n if (isObject(srcValue)) {\n baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);\n }\n else {\n var newValue = customizer\n ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack)\n : undefined;\n\n if (newValue === undefined) {\n newValue = srcValue;\n }\n assignMergeValue(object, key, newValue);\n }\n }, keysIn);\n }\n\n /**\n * A specialized version of `baseMerge` for arrays and objects which performs\n * deep merges and tracks traversed objects enabling objects with circular\n * references to be merged.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {string} key The key of the value to merge.\n * @param {number} srcIndex The index of `source`.\n * @param {Function} mergeFunc The function to merge values.\n * @param {Function} [customizer] The function to customize assigned values.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n */\n function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {\n var objValue = safeGet(object, key),\n srcValue = safeGet(source, key),\n stacked = stack.get(srcValue);\n\n if (stacked) {\n assignMergeValue(object, key, stacked);\n return;\n }\n var newValue = customizer\n ? customizer(objValue, srcValue, (key + ''), object, source, stack)\n : undefined;\n\n var isCommon = newValue === undefined;\n\n if (isCommon) {\n var isArr = isArray(srcValue),\n isBuff = !isArr && isBuffer(srcValue),\n isTyped = !isArr && !isBuff && isTypedArray(srcValue);\n\n newValue = srcValue;\n if (isArr || isBuff || isTyped) {\n if (isArray(objValue)) {\n newValue = objValue;\n }\n else if (isArrayLikeObject(objValue)) {\n newValue = copyArray(objValue);\n }\n else if (isBuff) {\n isCommon = false;\n newValue = cloneBuffer(srcValue, true);\n }\n else if (isTyped) {\n isCommon = false;\n newValue = cloneTypedArray(srcValue, true);\n }\n else {\n newValue = [];\n }\n }\n else if (isPlainObject(srcValue) || isArguments(srcValue)) {\n newValue = objValue;\n if (isArguments(objValue)) {\n newValue = toPlainObject(objValue);\n }\n else if (!isObject(objValue) || isFunction(objValue)) {\n newValue = initCloneObject(srcValue);\n }\n }\n else {\n isCommon = false;\n }\n }\n if (isCommon) {\n // Recursively merge objects and arrays (susceptible to call stack limits).\n stack.set(srcValue, newValue);\n mergeFunc(newValue, srcValue, srcIndex, customizer, stack);\n stack['delete'](srcValue);\n }\n assignMergeValue(object, key, newValue);\n }\n\n /**\n * The base implementation of `_.nth` which doesn't coerce arguments.\n *\n * @private\n * @param {Array} array The array to query.\n * @param {number} n The index of the element to return.\n * @returns {*} Returns the nth element of `array`.\n */\n function baseNth(array, n) {\n var length = array.length;\n if (!length) {\n return;\n }\n n += n < 0 ? length : 0;\n return isIndex(n, length) ? array[n] : undefined;\n }\n\n /**\n * The base implementation of `_.orderBy` without param guards.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.\n * @param {string[]} orders The sort orders of `iteratees`.\n * @returns {Array} Returns the new sorted array.\n */\n function baseOrderBy(collection, iteratees, orders) {\n if (iteratees.length) {\n iteratees = arrayMap(iteratees, function(iteratee) {\n if (isArray(iteratee)) {\n return function(value) {\n return baseGet(value, iteratee.length === 1 ? iteratee[0] : iteratee);\n }\n }\n return iteratee;\n });\n } else {\n iteratees = [identity];\n }\n\n var index = -1;\n iteratees = arrayMap(iteratees, baseUnary(getIteratee()));\n\n var result = baseMap(collection, function(value, key, collection) {\n var criteria = arrayMap(iteratees, function(iteratee) {\n return iteratee(value);\n });\n return { 'criteria': criteria, 'index': ++index, 'value': value };\n });\n\n return baseSortBy(result, function(object, other) {\n return compareMultiple(object, other, orders);\n });\n }\n\n /**\n * The base implementation of `_.pick` without support for individual\n * property identifiers.\n *\n * @private\n * @param {Object} object The source object.\n * @param {string[]} paths The property paths to pick.\n * @returns {Object} Returns the new object.\n */\n function basePick(object, paths) {\n return basePickBy(object, paths, function(value, path) {\n return hasIn(object, path);\n });\n }\n\n /**\n * The base implementation of `_.pickBy` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The source object.\n * @param {string[]} paths The property paths to pick.\n * @param {Function} predicate The function invoked per property.\n * @returns {Object} Returns the new object.\n */\n function basePickBy(object, paths, predicate) {\n var index = -1,\n length = paths.length,\n result = {};\n\n while (++index < length) {\n var path = paths[index],\n value = baseGet(object, path);\n\n if (predicate(value, path)) {\n baseSet(result, castPath(path, object), value);\n }\n }\n return result;\n }\n\n /**\n * A specialized version of `baseProperty` which supports deep paths.\n *\n * @private\n * @param {Array|string} path The path of the property to get.\n * @returns {Function} Returns the new accessor function.\n */\n function basePropertyDeep(path) {\n return function(object) {\n return baseGet(object, path);\n };\n }\n\n /**\n * The base implementation of `_.pullAllBy` without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns `array`.\n */\n function basePullAll(array, values, iteratee, comparator) {\n var indexOf = comparator ? baseIndexOfWith : baseIndexOf,\n index = -1,\n length = values.length,\n seen = array;\n\n if (array === values) {\n values = copyArray(values);\n }\n if (iteratee) {\n seen = arrayMap(array, baseUnary(iteratee));\n }\n while (++index < length) {\n var fromIndex = 0,\n value = values[index],\n computed = iteratee ? iteratee(value) : value;\n\n while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) {\n if (seen !== array) {\n splice.call(seen, fromIndex, 1);\n }\n splice.call(array, fromIndex, 1);\n }\n }\n return array;\n }\n\n /**\n * The base implementation of `_.pullAt` without support for individual\n * indexes or capturing the removed elements.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {number[]} indexes The indexes of elements to remove.\n * @returns {Array} Returns `array`.\n */\n function basePullAt(array, indexes) {\n var length = array ? indexes.length : 0,\n lastIndex = length - 1;\n\n while (length--) {\n var index = indexes[length];\n if (length == lastIndex || index !== previous) {\n var previous = index;\n if (isIndex(index)) {\n splice.call(array, index, 1);\n } else {\n baseUnset(array, index);\n }\n }\n }\n return array;\n }\n\n /**\n * The base implementation of `_.random` without support for returning\n * floating-point numbers.\n *\n * @private\n * @param {number} lower The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the random number.\n */\n function baseRandom(lower, upper) {\n return lower + nativeFloor(nativeRandom() * (upper - lower + 1));\n }\n\n /**\n * The base implementation of `_.range` and `_.rangeRight` which doesn't\n * coerce arguments.\n *\n * @private\n * @param {number} start The start of the range.\n * @param {number} end The end of the range.\n * @param {number} step The value to increment or decrement by.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Array} Returns the range of numbers.\n */\n function baseRange(start, end, step, fromRight) {\n var index = -1,\n length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),\n result = Array(length);\n\n while (length--) {\n result[fromRight ? length : ++index] = start;\n start += step;\n }\n return result;\n }\n\n /**\n * The base implementation of `_.repeat` which doesn't coerce arguments.\n *\n * @private\n * @param {string} string The string to repeat.\n * @param {number} n The number of times to repeat the string.\n * @returns {string} Returns the repeated string.\n */\n function baseRepeat(string, n) {\n var result = '';\n if (!string || n < 1 || n > MAX_SAFE_INTEGER) {\n return result;\n }\n // Leverage the exponentiation by squaring algorithm for a faster repeat.\n // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.\n do {\n if (n % 2) {\n result += string;\n }\n n = nativeFloor(n / 2);\n if (n) {\n string += string;\n }\n } while (n);\n\n return result;\n }\n\n /**\n * The base implementation of `_.rest` which doesn't validate or coerce arguments.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n */\n function baseRest(func, start) {\n return setToString(overRest(func, start, identity), func + '');\n }\n\n /**\n * The base implementation of `_.sample`.\n *\n * @private\n * @param {Array|Object} collection The collection to sample.\n * @returns {*} Returns the random element.\n */\n function baseSample(collection) {\n return arraySample(values(collection));\n }\n\n /**\n * The base implementation of `_.sampleSize` without param guards.\n *\n * @private\n * @param {Array|Object} collection The collection to sample.\n * @param {number} n The number of elements to sample.\n * @returns {Array} Returns the random elements.\n */\n function baseSampleSize(collection, n) {\n var array = values(collection);\n return shuffleSelf(array, baseClamp(n, 0, array.length));\n }\n\n /**\n * The base implementation of `_.set`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @param {Function} [customizer] The function to customize path creation.\n * @returns {Object} Returns `object`.\n */\n function baseSet(object, path, value, customizer) {\n if (!isObject(object)) {\n return object;\n }\n path = castPath(path, object);\n\n var index = -1,\n length = path.length,\n lastIndex = length - 1,\n nested = object;\n\n while (nested != null && ++index < length) {\n var key = toKey(path[index]),\n newValue = value;\n\n if (key === '__proto__' || key === 'constructor' || key === 'prototype') {\n return object;\n }\n\n if (index != lastIndex) {\n var objValue = nested[key];\n newValue = customizer ? customizer(objValue, key, nested) : undefined;\n if (newValue === undefined) {\n newValue = isObject(objValue)\n ? objValue\n : (isIndex(path[index + 1]) ? [] : {});\n }\n }\n assignValue(nested, key, newValue);\n nested = nested[key];\n }\n return object;\n }\n\n /**\n * The base implementation of `setData` without support for hot loop shorting.\n *\n * @private\n * @param {Function} func The function to associate metadata with.\n * @param {*} data The metadata.\n * @returns {Function} Returns `func`.\n */\n var baseSetData = !metaMap ? identity : function(func, data) {\n metaMap.set(func, data);\n return func;\n };\n\n /**\n * The base implementation of `setToString` without support for hot loop shorting.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\n var baseSetToString = !defineProperty ? identity : function(func, string) {\n return defineProperty(func, 'toString', {\n 'configurable': true,\n 'enumerable': false,\n 'value': constant(string),\n 'writable': true\n });\n };\n\n /**\n * The base implementation of `_.shuffle`.\n *\n * @private\n * @param {Array|Object} collection The collection to shuffle.\n * @returns {Array} Returns the new shuffled array.\n */\n function baseShuffle(collection) {\n return shuffleSelf(values(collection));\n }\n\n /**\n * The base implementation of `_.slice` without an iteratee call guard.\n *\n * @private\n * @param {Array} array The array to slice.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the slice of `array`.\n */\n function baseSlice(array, start, end) {\n var index = -1,\n length = array.length;\n\n if (start < 0) {\n start = -start > length ? 0 : (length + start);\n }\n end = end > length ? length : end;\n if (end < 0) {\n end += length;\n }\n length = start > end ? 0 : ((end - start) >>> 0);\n start >>>= 0;\n\n var result = Array(length);\n while (++index < length) {\n result[index] = array[index + start];\n }\n return result;\n }\n\n /**\n * The base implementation of `_.some` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n */\n function baseSome(collection, predicate) {\n var result;\n\n baseEach(collection, function(value, index, collection) {\n result = predicate(value, index, collection);\n return !result;\n });\n return !!result;\n }\n\n /**\n * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which\n * performs a binary search of `array` to determine the index at which `value`\n * should be inserted into `array` in order to maintain its sort order.\n *\n * @private\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {boolean} [retHighest] Specify returning the highest qualified index.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n */\n function baseSortedIndex(array, value, retHighest) {\n var low = 0,\n high = array == null ? low : array.length;\n\n if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {\n while (low < high) {\n var mid = (low + high) >>> 1,\n computed = array[mid];\n\n if (computed !== null && !isSymbol(computed) &&\n (retHighest ? (computed <= value) : (computed < value))) {\n low = mid + 1;\n } else {\n high = mid;\n }\n }\n return high;\n }\n return baseSortedIndexBy(array, value, identity, retHighest);\n }\n\n /**\n * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy`\n * which invokes `iteratee` for `value` and each element of `array` to compute\n * their sort ranking. The iteratee is invoked with one argument; (value).\n *\n * @private\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {Function} iteratee The iteratee invoked per element.\n * @param {boolean} [retHighest] Specify returning the highest qualified index.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n */\n function baseSortedIndexBy(array, value, iteratee, retHighest) {\n var low = 0,\n high = array == null ? 0 : array.length;\n if (high === 0) {\n return 0;\n }\n\n value = iteratee(value);\n var valIsNaN = value !== value,\n valIsNull = value === null,\n valIsSymbol = isSymbol(value),\n valIsUndefined = value === undefined;\n\n while (low < high) {\n var mid = nativeFloor((low + high) / 2),\n computed = iteratee(array[mid]),\n othIsDefined = computed !== undefined,\n othIsNull = computed === null,\n othIsReflexive = computed === computed,\n othIsSymbol = isSymbol(computed);\n\n if (valIsNaN) {\n var setLow = retHighest || othIsReflexive;\n } else if (valIsUndefined) {\n setLow = othIsReflexive && (retHighest || othIsDefined);\n } else if (valIsNull) {\n setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull);\n } else if (valIsSymbol) {\n setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol);\n } else if (othIsNull || othIsSymbol) {\n setLow = false;\n } else {\n setLow = retHighest ? (computed <= value) : (computed < value);\n }\n if (setLow) {\n low = mid + 1;\n } else {\n high = mid;\n }\n }\n return nativeMin(high, MAX_ARRAY_INDEX);\n }\n\n /**\n * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without\n * support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n */\n function baseSortedUniq(array, iteratee) {\n var index = -1,\n length = array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index],\n computed = iteratee ? iteratee(value) : value;\n\n if (!index || !eq(computed, seen)) {\n var seen = computed;\n result[resIndex++] = value === 0 ? 0 : value;\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.toNumber` which doesn't ensure correct\n * conversions of binary, hexadecimal, or octal string values.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n */\n function baseToNumber(value) {\n if (typeof value == 'number') {\n return value;\n }\n if (isSymbol(value)) {\n return NAN;\n }\n return +value;\n }\n\n /**\n * The base implementation of `_.toString` which doesn't convert nullish\n * values to empty strings.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {string} Returns the string.\n */\n function baseToString(value) {\n // Exit early for strings to avoid a performance hit in some environments.\n if (typeof value == 'string') {\n return value;\n }\n if (isArray(value)) {\n // Recursively convert values (susceptible to call stack limits).\n return arrayMap(value, baseToString) + '';\n }\n if (isSymbol(value)) {\n return symbolToString ? symbolToString.call(value) : '';\n }\n var result = (value + '');\n return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n }\n\n /**\n * The base implementation of `_.uniqBy` without support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n */\n function baseUniq(array, iteratee, comparator) {\n var index = -1,\n includes = arrayIncludes,\n length = array.length,\n isCommon = true,\n result = [],\n seen = result;\n\n if (comparator) {\n isCommon = false;\n includes = arrayIncludesWith;\n }\n else if (length >= LARGE_ARRAY_SIZE) {\n var set = iteratee ? null : createSet(array);\n if (set) {\n return setToArray(set);\n }\n isCommon = false;\n includes = cacheHas;\n seen = new SetCache;\n }\n else {\n seen = iteratee ? [] : result;\n }\n outer:\n while (++index < length) {\n var value = array[index],\n computed = iteratee ? iteratee(value) : value;\n\n value = (comparator || value !== 0) ? value : 0;\n if (isCommon && computed === computed) {\n var seenIndex = seen.length;\n while (seenIndex--) {\n if (seen[seenIndex] === computed) {\n continue outer;\n }\n }\n if (iteratee) {\n seen.push(computed);\n }\n result.push(value);\n }\n else if (!includes(seen, computed, comparator)) {\n if (seen !== result) {\n seen.push(computed);\n }\n result.push(value);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.unset`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The property path to unset.\n * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n */\n function baseUnset(object, path) {\n path = castPath(path, object);\n object = parent(object, path);\n return object == null || delete object[toKey(last(path))];\n }\n\n /**\n * The base implementation of `_.update`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to update.\n * @param {Function} updater The function to produce the updated value.\n * @param {Function} [customizer] The function to customize path creation.\n * @returns {Object} Returns `object`.\n */\n function baseUpdate(object, path, updater, customizer) {\n return baseSet(object, path, updater(baseGet(object, path)), customizer);\n }\n\n /**\n * The base implementation of methods like `_.dropWhile` and `_.takeWhile`\n * without support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to query.\n * @param {Function} predicate The function invoked per iteration.\n * @param {boolean} [isDrop] Specify dropping elements instead of taking them.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Array} Returns the slice of `array`.\n */\n function baseWhile(array, predicate, isDrop, fromRight) {\n var length = array.length,\n index = fromRight ? length : -1;\n\n while ((fromRight ? index-- : ++index < length) &&\n predicate(array[index], index, array)) {}\n\n return isDrop\n ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length))\n : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index));\n }\n\n /**\n * The base implementation of `wrapperValue` which returns the result of\n * performing a sequence of actions on the unwrapped `value`, where each\n * successive action is supplied the return value of the previous.\n *\n * @private\n * @param {*} value The unwrapped value.\n * @param {Array} actions Actions to perform to resolve the unwrapped value.\n * @returns {*} Returns the resolved value.\n */\n function baseWrapperValue(value, actions) {\n var result = value;\n if (result instanceof LazyWrapper) {\n result = result.value();\n }\n return arrayReduce(actions, function(result, action) {\n return action.func.apply(action.thisArg, arrayPush([result], action.args));\n }, result);\n }\n\n /**\n * The base implementation of methods like `_.xor`, without support for\n * iteratee shorthands, that accepts an array of arrays to inspect.\n *\n * @private\n * @param {Array} arrays The arrays to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of values.\n */\n function baseXor(arrays, iteratee, comparator) {\n var length = arrays.length;\n if (length < 2) {\n return length ? baseUniq(arrays[0]) : [];\n }\n var index = -1,\n result = Array(length);\n\n while (++index < length) {\n var array = arrays[index],\n othIndex = -1;\n\n while (++othIndex < length) {\n if (othIndex != index) {\n result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator);\n }\n }\n }\n return baseUniq(baseFlatten(result, 1), iteratee, comparator);\n }\n\n /**\n * This base implementation of `_.zipObject` which assigns values using `assignFunc`.\n *\n * @private\n * @param {Array} props The property identifiers.\n * @param {Array} values The property values.\n * @param {Function} assignFunc The function to assign values.\n * @returns {Object} Returns the new object.\n */\n function baseZipObject(props, values, assignFunc) {\n var index = -1,\n length = props.length,\n valsLength = values.length,\n result = {};\n\n while (++index < length) {\n var value = index < valsLength ? values[index] : undefined;\n assignFunc(result, props[index], value);\n }\n return result;\n }\n\n /**\n * Casts `value` to an empty array if it's not an array like object.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {Array|Object} Returns the cast array-like object.\n */\n function castArrayLikeObject(value) {\n return isArrayLikeObject(value) ? value : [];\n }\n\n /**\n * Casts `value` to `identity` if it's not a function.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {Function} Returns cast function.\n */\n function castFunction(value) {\n return typeof value == 'function' ? value : identity;\n }\n\n /**\n * Casts `value` to a path array if it's not one.\n *\n * @private\n * @param {*} value The value to inspect.\n * @param {Object} [object] The object to query keys on.\n * @returns {Array} Returns the cast property path array.\n */\n function castPath(value, object) {\n if (isArray(value)) {\n return value;\n }\n return isKey(value, object) ? [value] : stringToPath(toString(value));\n }\n\n /**\n * A `baseRest` alias which can be replaced with `identity` by module\n * replacement plugins.\n *\n * @private\n * @type {Function}\n * @param {Function} func The function to apply a rest parameter to.\n * @returns {Function} Returns the new function.\n */\n var castRest = baseRest;\n\n /**\n * Casts `array` to a slice if it's needed.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {number} start The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the cast slice.\n */\n function castSlice(array, start, end) {\n var length = array.length;\n end = end === undefined ? length : end;\n return (!start && end >= length) ? array : baseSlice(array, start, end);\n }\n\n /**\n * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout).\n *\n * @private\n * @param {number|Object} id The timer id or timeout object of the timer to clear.\n */\n var clearTimeout = ctxClearTimeout || function(id) {\n return root.clearTimeout(id);\n };\n\n /**\n * Creates a clone of `buffer`.\n *\n * @private\n * @param {Buffer} buffer The buffer to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Buffer} Returns the cloned buffer.\n */\n function cloneBuffer(buffer, isDeep) {\n if (isDeep) {\n return buffer.slice();\n }\n var length = buffer.length,\n result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);\n\n buffer.copy(result);\n return result;\n }\n\n /**\n * Creates a clone of `arrayBuffer`.\n *\n * @private\n * @param {ArrayBuffer} arrayBuffer The array buffer to clone.\n * @returns {ArrayBuffer} Returns the cloned array buffer.\n */\n function cloneArrayBuffer(arrayBuffer) {\n var result = new arrayBuffer.constructor(arrayBuffer.byteLength);\n new Uint8Array(result).set(new Uint8Array(arrayBuffer));\n return result;\n }\n\n /**\n * Creates a clone of `dataView`.\n *\n * @private\n * @param {Object} dataView The data view to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned data view.\n */\n function cloneDataView(dataView, isDeep) {\n var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;\n return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);\n }\n\n /**\n * Creates a clone of `regexp`.\n *\n * @private\n * @param {Object} regexp The regexp to clone.\n * @returns {Object} Returns the cloned regexp.\n */\n function cloneRegExp(regexp) {\n var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));\n result.lastIndex = regexp.lastIndex;\n return result;\n }\n\n /**\n * Creates a clone of the `symbol` object.\n *\n * @private\n * @param {Object} symbol The symbol object to clone.\n * @returns {Object} Returns the cloned symbol object.\n */\n function cloneSymbol(symbol) {\n return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};\n }\n\n /**\n * Creates a clone of `typedArray`.\n *\n * @private\n * @param {Object} typedArray The typed array to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned typed array.\n */\n function cloneTypedArray(typedArray, isDeep) {\n var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;\n return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);\n }\n\n /**\n * Compares values to sort them in ascending order.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {number} Returns the sort order indicator for `value`.\n */\n function compareAscending(value, other) {\n if (value !== other) {\n var valIsDefined = value !== undefined,\n valIsNull = value === null,\n valIsReflexive = value === value,\n valIsSymbol = isSymbol(value);\n\n var othIsDefined = other !== undefined,\n othIsNull = other === null,\n othIsReflexive = other === other,\n othIsSymbol = isSymbol(other);\n\n if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||\n (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) ||\n (valIsNull && othIsDefined && othIsReflexive) ||\n (!valIsDefined && othIsReflexive) ||\n !valIsReflexive) {\n return 1;\n }\n if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||\n (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) ||\n (othIsNull && valIsDefined && valIsReflexive) ||\n (!othIsDefined && valIsReflexive) ||\n !othIsReflexive) {\n return -1;\n }\n }\n return 0;\n }\n\n /**\n * Used by `_.orderBy` to compare multiple properties of a value to another\n * and stable sort them.\n *\n * If `orders` is unspecified, all values are sorted in ascending order. Otherwise,\n * specify an order of \"desc\" for descending or \"asc\" for ascending sort order\n * of corresponding values.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {boolean[]|string[]} orders The order to sort by for each property.\n * @returns {number} Returns the sort order indicator for `object`.\n */\n function compareMultiple(object, other, orders) {\n var index = -1,\n objCriteria = object.criteria,\n othCriteria = other.criteria,\n length = objCriteria.length,\n ordersLength = orders.length;\n\n while (++index < length) {\n var result = compareAscending(objCriteria[index], othCriteria[index]);\n if (result) {\n if (index >= ordersLength) {\n return result;\n }\n var order = orders[index];\n return result * (order == 'desc' ? -1 : 1);\n }\n }\n // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications\n // that causes it, under certain circumstances, to provide the same value for\n // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247\n // for more details.\n //\n // This also ensures a stable sort in V8 and other engines.\n // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.\n return object.index - other.index;\n }\n\n /**\n * Creates an array that is the composition of partially applied arguments,\n * placeholders, and provided arguments into a single array of arguments.\n *\n * @private\n * @param {Array} args The provided arguments.\n * @param {Array} partials The arguments to prepend to those provided.\n * @param {Array} holders The `partials` placeholder indexes.\n * @params {boolean} [isCurried] Specify composing for a curried function.\n * @returns {Array} Returns the new array of composed arguments.\n */\n function composeArgs(args, partials, holders, isCurried) {\n var argsIndex = -1,\n argsLength = args.length,\n holdersLength = holders.length,\n leftIndex = -1,\n leftLength = partials.length,\n rangeLength = nativeMax(argsLength - holdersLength, 0),\n result = Array(leftLength + rangeLength),\n isUncurried = !isCurried;\n\n while (++leftIndex < leftLength) {\n result[leftIndex] = partials[leftIndex];\n }\n while (++argsIndex < holdersLength) {\n if (isUncurried || argsIndex < argsLength) {\n result[holders[argsIndex]] = args[argsIndex];\n }\n }\n while (rangeLength--) {\n result[leftIndex++] = args[argsIndex++];\n }\n return result;\n }\n\n /**\n * This function is like `composeArgs` except that the arguments composition\n * is tailored for `_.partialRight`.\n *\n * @private\n * @param {Array} args The provided arguments.\n * @param {Array} partials The arguments to append to those provided.\n * @param {Array} holders The `partials` placeholder indexes.\n * @params {boolean} [isCurried] Specify composing for a curried function.\n * @returns {Array} Returns the new array of composed arguments.\n */\n function composeArgsRight(args, partials, holders, isCurried) {\n var argsIndex = -1,\n argsLength = args.length,\n holdersIndex = -1,\n holdersLength = holders.length,\n rightIndex = -1,\n rightLength = partials.length,\n rangeLength = nativeMax(argsLength - holdersLength, 0),\n result = Array(rangeLength + rightLength),\n isUncurried = !isCurried;\n\n while (++argsIndex < rangeLength) {\n result[argsIndex] = args[argsIndex];\n }\n var offset = argsIndex;\n while (++rightIndex < rightLength) {\n result[offset + rightIndex] = partials[rightIndex];\n }\n while (++holdersIndex < holdersLength) {\n if (isUncurried || argsIndex < argsLength) {\n result[offset + holders[holdersIndex]] = args[argsIndex++];\n }\n }\n return result;\n }\n\n /**\n * Copies the values of `source` to `array`.\n *\n * @private\n * @param {Array} source The array to copy values from.\n * @param {Array} [array=[]] The array to copy values to.\n * @returns {Array} Returns `array`.\n */\n function copyArray(source, array) {\n var index = -1,\n length = source.length;\n\n array || (array = Array(length));\n while (++index < length) {\n array[index] = source[index];\n }\n return array;\n }\n\n /**\n * Copies properties of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy properties from.\n * @param {Array} props The property identifiers to copy.\n * @param {Object} [object={}] The object to copy properties to.\n * @param {Function} [customizer] The function to customize copied values.\n * @returns {Object} Returns `object`.\n */\n function copyObject(source, props, object, customizer) {\n var isNew = !object;\n object || (object = {});\n\n var index = -1,\n length = props.length;\n\n while (++index < length) {\n var key = props[index];\n\n var newValue = customizer\n ? customizer(object[key], source[key], key, object, source)\n : undefined;\n\n if (newValue === undefined) {\n newValue = source[key];\n }\n if (isNew) {\n baseAssignValue(object, key, newValue);\n } else {\n assignValue(object, key, newValue);\n }\n }\n return object;\n }\n\n /**\n * Copies own symbols of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy symbols from.\n * @param {Object} [object={}] The object to copy symbols to.\n * @returns {Object} Returns `object`.\n */\n function copySymbols(source, object) {\n return copyObject(source, getSymbols(source), object);\n }\n\n /**\n * Copies own and inherited symbols of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy symbols from.\n * @param {Object} [object={}] The object to copy symbols to.\n * @returns {Object} Returns `object`.\n */\n function copySymbolsIn(source, object) {\n return copyObject(source, getSymbolsIn(source), object);\n }\n\n /**\n * Creates a function like `_.groupBy`.\n *\n * @private\n * @param {Function} setter The function to set accumulator values.\n * @param {Function} [initializer] The accumulator object initializer.\n * @returns {Function} Returns the new aggregator function.\n */\n function createAggregator(setter, initializer) {\n return function(collection, iteratee) {\n var func = isArray(collection) ? arrayAggregator : baseAggregator,\n accumulator = initializer ? initializer() : {};\n\n return func(collection, setter, getIteratee(iteratee, 2), accumulator);\n };\n }\n\n /**\n * Creates a function like `_.assign`.\n *\n * @private\n * @param {Function} assigner The function to assign values.\n * @returns {Function} Returns the new assigner function.\n */\n function createAssigner(assigner) {\n return baseRest(function(object, sources) {\n var index = -1,\n length = sources.length,\n customizer = length > 1 ? sources[length - 1] : undefined,\n guard = length > 2 ? sources[2] : undefined;\n\n customizer = (assigner.length > 3 && typeof customizer == 'function')\n ? (length--, customizer)\n : undefined;\n\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n customizer = length < 3 ? undefined : customizer;\n length = 1;\n }\n object = Object(object);\n while (++index < length) {\n var source = sources[index];\n if (source) {\n assigner(object, source, index, customizer);\n }\n }\n return object;\n });\n }\n\n /**\n * Creates a `baseEach` or `baseEachRight` function.\n *\n * @private\n * @param {Function} eachFunc The function to iterate over a collection.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\n function createBaseEach(eachFunc, fromRight) {\n return function(collection, iteratee) {\n if (collection == null) {\n return collection;\n }\n if (!isArrayLike(collection)) {\n return eachFunc(collection, iteratee);\n }\n var length = collection.length,\n index = fromRight ? length : -1,\n iterable = Object(collection);\n\n while ((fromRight ? index-- : ++index < length)) {\n if (iteratee(iterable[index], index, iterable) === false) {\n break;\n }\n }\n return collection;\n };\n }\n\n /**\n * Creates a base function for methods like `_.forIn` and `_.forOwn`.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\n function createBaseFor(fromRight) {\n return function(object, iteratee, keysFunc) {\n var index = -1,\n iterable = Object(object),\n props = keysFunc(object),\n length = props.length;\n\n while (length--) {\n var key = props[fromRight ? length : ++index];\n if (iteratee(iterable[key], key, iterable) === false) {\n break;\n }\n }\n return object;\n };\n }\n\n /**\n * Creates a function that wraps `func` to invoke it with the optional `this`\n * binding of `thisArg`.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createBind(func, bitmask, thisArg) {\n var isBind = bitmask & WRAP_BIND_FLAG,\n Ctor = createCtor(func);\n\n function wrapper() {\n var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n return fn.apply(isBind ? thisArg : this, arguments);\n }\n return wrapper;\n }\n\n /**\n * Creates a function like `_.lowerFirst`.\n *\n * @private\n * @param {string} methodName The name of the `String` case method to use.\n * @returns {Function} Returns the new case function.\n */\n function createCaseFirst(methodName) {\n return function(string) {\n string = toString(string);\n\n var strSymbols = hasUnicode(string)\n ? stringToArray(string)\n : undefined;\n\n var chr = strSymbols\n ? strSymbols[0]\n : string.charAt(0);\n\n var trailing = strSymbols\n ? castSlice(strSymbols, 1).join('')\n : string.slice(1);\n\n return chr[methodName]() + trailing;\n };\n }\n\n /**\n * Creates a function like `_.camelCase`.\n *\n * @private\n * @param {Function} callback The function to combine each word.\n * @returns {Function} Returns the new compounder function.\n */\n function createCompounder(callback) {\n return function(string) {\n return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');\n };\n }\n\n /**\n * Creates a function that produces an instance of `Ctor` regardless of\n * whether it was invoked as part of a `new` expression or by `call` or `apply`.\n *\n * @private\n * @param {Function} Ctor The constructor to wrap.\n * @returns {Function} Returns the new wrapped function.\n */\n function createCtor(Ctor) {\n return function() {\n // Use a `switch` statement to work with class constructors. See\n // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist\n // for more details.\n var args = arguments;\n switch (args.length) {\n case 0: return new Ctor;\n case 1: return new Ctor(args[0]);\n case 2: return new Ctor(args[0], args[1]);\n case 3: return new Ctor(args[0], args[1], args[2]);\n case 4: return new Ctor(args[0], args[1], args[2], args[3]);\n case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);\n case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);\n case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);\n }\n var thisBinding = baseCreate(Ctor.prototype),\n result = Ctor.apply(thisBinding, args);\n\n // Mimic the constructor's `return` behavior.\n // See https://es5.github.io/#x13.2.2 for more details.\n return isObject(result) ? result : thisBinding;\n };\n }\n\n /**\n * Creates a function that wraps `func` to enable currying.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {number} arity The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createCurry(func, bitmask, arity) {\n var Ctor = createCtor(func);\n\n function wrapper() {\n var length = arguments.length,\n args = Array(length),\n index = length,\n placeholder = getHolder(wrapper);\n\n while (index--) {\n args[index] = arguments[index];\n }\n var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder)\n ? []\n : replaceHolders(args, placeholder);\n\n length -= holders.length;\n if (length < arity) {\n return createRecurry(\n func, bitmask, createHybrid, wrapper.placeholder, undefined,\n args, holders, undefined, undefined, arity - length);\n }\n var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n return apply(fn, this, args);\n }\n return wrapper;\n }\n\n /**\n * Creates a `_.find` or `_.findLast` function.\n *\n * @private\n * @param {Function} findIndexFunc The function to find the collection index.\n * @returns {Function} Returns the new find function.\n */\n function createFind(findIndexFunc) {\n return function(collection, predicate, fromIndex) {\n var iterable = Object(collection);\n if (!isArrayLike(collection)) {\n var iteratee = getIteratee(predicate, 3);\n collection = keys(collection);\n predicate = function(key) { return iteratee(iterable[key], key, iterable); };\n }\n var index = findIndexFunc(collection, predicate, fromIndex);\n return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined;\n };\n }\n\n /**\n * Creates a `_.flow` or `_.flowRight` function.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new flow function.\n */\n function createFlow(fromRight) {\n return flatRest(function(funcs) {\n var length = funcs.length,\n index = length,\n prereq = LodashWrapper.prototype.thru;\n\n if (fromRight) {\n funcs.reverse();\n }\n while (index--) {\n var func = funcs[index];\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n if (prereq && !wrapper && getFuncName(func) == 'wrapper') {\n var wrapper = new LodashWrapper([], true);\n }\n }\n index = wrapper ? index : length;\n while (++index < length) {\n func = funcs[index];\n\n var funcName = getFuncName(func),\n data = funcName == 'wrapper' ? getData(func) : undefined;\n\n if (data && isLaziable(data[0]) &&\n data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) &&\n !data[4].length && data[9] == 1\n ) {\n wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);\n } else {\n wrapper = (func.length == 1 && isLaziable(func))\n ? wrapper[funcName]()\n : wrapper.thru(func);\n }\n }\n return function() {\n var args = arguments,\n value = args[0];\n\n if (wrapper && args.length == 1 && isArray(value)) {\n return wrapper.plant(value).value();\n }\n var index = 0,\n result = length ? funcs[index].apply(this, args) : value;\n\n while (++index < length) {\n result = funcs[index].call(this, result);\n }\n return result;\n };\n });\n }\n\n /**\n * Creates a function that wraps `func` to invoke it with optional `this`\n * binding of `thisArg`, partial application, and currying.\n *\n * @private\n * @param {Function|string} func The function or method name to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to prepend to those provided to\n * the new function.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [partialsRight] The arguments to append to those provided\n * to the new function.\n * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {\n var isAry = bitmask & WRAP_ARY_FLAG,\n isBind = bitmask & WRAP_BIND_FLAG,\n isBindKey = bitmask & WRAP_BIND_KEY_FLAG,\n isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG),\n isFlip = bitmask & WRAP_FLIP_FLAG,\n Ctor = isBindKey ? undefined : createCtor(func);\n\n function wrapper() {\n var length = arguments.length,\n args = Array(length),\n index = length;\n\n while (index--) {\n args[index] = arguments[index];\n }\n if (isCurried) {\n var placeholder = getHolder(wrapper),\n holdersCount = countHolders(args, placeholder);\n }\n if (partials) {\n args = composeArgs(args, partials, holders, isCurried);\n }\n if (partialsRight) {\n args = composeArgsRight(args, partialsRight, holdersRight, isCurried);\n }\n length -= holdersCount;\n if (isCurried && length < arity) {\n var newHolders = replaceHolders(args, placeholder);\n return createRecurry(\n func, bitmask, createHybrid, wrapper.placeholder, thisArg,\n args, newHolders, argPos, ary, arity - length\n );\n }\n var thisBinding = isBind ? thisArg : this,\n fn = isBindKey ? thisBinding[func] : func;\n\n length = args.length;\n if (argPos) {\n args = reorder(args, argPos);\n } else if (isFlip && length > 1) {\n args.reverse();\n }\n if (isAry && ary < length) {\n args.length = ary;\n }\n if (this && this !== root && this instanceof wrapper) {\n fn = Ctor || createCtor(fn);\n }\n return fn.apply(thisBinding, args);\n }\n return wrapper;\n }\n\n /**\n * Creates a function like `_.invertBy`.\n *\n * @private\n * @param {Function} setter The function to set accumulator values.\n * @param {Function} toIteratee The function to resolve iteratees.\n * @returns {Function} Returns the new inverter function.\n */\n function createInverter(setter, toIteratee) {\n return function(object, iteratee) {\n return baseInverter(object, setter, toIteratee(iteratee), {});\n };\n }\n\n /**\n * Creates a function that performs a mathematical operation on two values.\n *\n * @private\n * @param {Function} operator The function to perform the operation.\n * @param {number} [defaultValue] The value used for `undefined` arguments.\n * @returns {Function} Returns the new mathematical operation function.\n */\n function createMathOperation(operator, defaultValue) {\n return function(value, other) {\n var result;\n if (value === undefined && other === undefined) {\n return defaultValue;\n }\n if (value !== undefined) {\n result = value;\n }\n if (other !== undefined) {\n if (result === undefined) {\n return other;\n }\n if (typeof value == 'string' || typeof other == 'string') {\n value = baseToString(value);\n other = baseToString(other);\n } else {\n value = baseToNumber(value);\n other = baseToNumber(other);\n }\n result = operator(value, other);\n }\n return result;\n };\n }\n\n /**\n * Creates a function like `_.over`.\n *\n * @private\n * @param {Function} arrayFunc The function to iterate over iteratees.\n * @returns {Function} Returns the new over function.\n */\n function createOver(arrayFunc) {\n return flatRest(function(iteratees) {\n iteratees = arrayMap(iteratees, baseUnary(getIteratee()));\n return baseRest(function(args) {\n var thisArg = this;\n return arrayFunc(iteratees, function(iteratee) {\n return apply(iteratee, thisArg, args);\n });\n });\n });\n }\n\n /**\n * Creates the padding for `string` based on `length`. The `chars` string\n * is truncated if the number of characters exceeds `length`.\n *\n * @private\n * @param {number} length The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padding for `string`.\n */\n function createPadding(length, chars) {\n chars = chars === undefined ? ' ' : baseToString(chars);\n\n var charsLength = chars.length;\n if (charsLength < 2) {\n return charsLength ? baseRepeat(chars, length) : chars;\n }\n var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));\n return hasUnicode(chars)\n ? castSlice(stringToArray(result), 0, length).join('')\n : result.slice(0, length);\n }\n\n /**\n * Creates a function that wraps `func` to invoke it with the `this` binding\n * of `thisArg` and `partials` prepended to the arguments it receives.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {Array} partials The arguments to prepend to those provided to\n * the new function.\n * @returns {Function} Returns the new wrapped function.\n */\n function createPartial(func, bitmask, thisArg, partials) {\n var isBind = bitmask & WRAP_BIND_FLAG,\n Ctor = createCtor(func);\n\n function wrapper() {\n var argsIndex = -1,\n argsLength = arguments.length,\n leftIndex = -1,\n leftLength = partials.length,\n args = Array(leftLength + argsLength),\n fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n\n while (++leftIndex < leftLength) {\n args[leftIndex] = partials[leftIndex];\n }\n while (argsLength--) {\n args[leftIndex++] = arguments[++argsIndex];\n }\n return apply(fn, isBind ? thisArg : this, args);\n }\n return wrapper;\n }\n\n /**\n * Creates a `_.range` or `_.rangeRight` function.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new range function.\n */\n function createRange(fromRight) {\n return function(start, end, step) {\n if (step && typeof step != 'number' && isIterateeCall(start, end, step)) {\n end = step = undefined;\n }\n // Ensure the sign of `-0` is preserved.\n start = toFinite(start);\n if (end === undefined) {\n end = start;\n start = 0;\n } else {\n end = toFinite(end);\n }\n step = step === undefined ? (start < end ? 1 : -1) : toFinite(step);\n return baseRange(start, end, step, fromRight);\n };\n }\n\n /**\n * Creates a function that performs a relational operation on two values.\n *\n * @private\n * @param {Function} operator The function to perform the operation.\n * @returns {Function} Returns the new relational operation function.\n */\n function createRelationalOperation(operator) {\n return function(value, other) {\n if (!(typeof value == 'string' && typeof other == 'string')) {\n value = toNumber(value);\n other = toNumber(other);\n }\n return operator(value, other);\n };\n }\n\n /**\n * Creates a function that wraps `func` to continue currying.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {Function} wrapFunc The function to create the `func` wrapper.\n * @param {*} placeholder The placeholder value.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to prepend to those provided to\n * the new function.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {\n var isCurry = bitmask & WRAP_CURRY_FLAG,\n newHolders = isCurry ? holders : undefined,\n newHoldersRight = isCurry ? undefined : holders,\n newPartials = isCurry ? partials : undefined,\n newPartialsRight = isCurry ? undefined : partials;\n\n bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG);\n bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG);\n\n if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) {\n bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG);\n }\n var newData = [\n func, bitmask, thisArg, newPartials, newHolders, newPartialsRight,\n newHoldersRight, argPos, ary, arity\n ];\n\n var result = wrapFunc.apply(undefined, newData);\n if (isLaziable(func)) {\n setData(result, newData);\n }\n result.placeholder = placeholder;\n return setWrapToString(result, func, bitmask);\n }\n\n /**\n * Creates a function like `_.round`.\n *\n * @private\n * @param {string} methodName The name of the `Math` method to use when rounding.\n * @returns {Function} Returns the new round function.\n */\n function createRound(methodName) {\n var func = Math[methodName];\n return function(number, precision) {\n number = toNumber(number);\n precision = precision == null ? 0 : nativeMin(toInteger(precision), 292);\n if (precision && nativeIsFinite(number)) {\n // Shift with exponential notation to avoid floating-point issues.\n // See [MDN](https://mdn.io/round#Examples) for more details.\n var pair = (toString(number) + 'e').split('e'),\n value = func(pair[0] + 'e' + (+pair[1] + precision));\n\n pair = (toString(value) + 'e').split('e');\n return +(pair[0] + 'e' + (+pair[1] - precision));\n }\n return func(number);\n };\n }\n\n /**\n * Creates a set object of `values`.\n *\n * @private\n * @param {Array} values The values to add to the set.\n * @returns {Object} Returns the new set.\n */\n var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) {\n return new Set(values);\n };\n\n /**\n * Creates a `_.toPairs` or `_.toPairsIn` function.\n *\n * @private\n * @param {Function} keysFunc The function to get the keys of a given object.\n * @returns {Function} Returns the new pairs function.\n */\n function createToPairs(keysFunc) {\n return function(object) {\n var tag = getTag(object);\n if (tag == mapTag) {\n return mapToArray(object);\n }\n if (tag == setTag) {\n return setToPairs(object);\n }\n return baseToPairs(object, keysFunc(object));\n };\n }\n\n /**\n * Creates a function that either curries or invokes `func` with optional\n * `this` binding and partially applied arguments.\n *\n * @private\n * @param {Function|string} func The function or method name to wrap.\n * @param {number} bitmask The bitmask flags.\n * 1 - `_.bind`\n * 2 - `_.bindKey`\n * 4 - `_.curry` or `_.curryRight` of a bound function\n * 8 - `_.curry`\n * 16 - `_.curryRight`\n * 32 - `_.partial`\n * 64 - `_.partialRight`\n * 128 - `_.rearg`\n * 256 - `_.ary`\n * 512 - `_.flip`\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to be partially applied.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {\n var isBindKey = bitmask & WRAP_BIND_KEY_FLAG;\n if (!isBindKey && typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n var length = partials ? partials.length : 0;\n if (!length) {\n bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG);\n partials = holders = undefined;\n }\n ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0);\n arity = arity === undefined ? arity : toInteger(arity);\n length -= holders ? holders.length : 0;\n\n if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) {\n var partialsRight = partials,\n holdersRight = holders;\n\n partials = holders = undefined;\n }\n var data = isBindKey ? undefined : getData(func);\n\n var newData = [\n func, bitmask, thisArg, partials, holders, partialsRight, holdersRight,\n argPos, ary, arity\n ];\n\n if (data) {\n mergeData(newData, data);\n }\n func = newData[0];\n bitmask = newData[1];\n thisArg = newData[2];\n partials = newData[3];\n holders = newData[4];\n arity = newData[9] = newData[9] === undefined\n ? (isBindKey ? 0 : func.length)\n : nativeMax(newData[9] - length, 0);\n\n if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) {\n bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG);\n }\n if (!bitmask || bitmask == WRAP_BIND_FLAG) {\n var result = createBind(func, bitmask, thisArg);\n } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) {\n result = createCurry(func, bitmask, arity);\n } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) {\n result = createPartial(func, bitmask, thisArg, partials);\n } else {\n result = createHybrid.apply(undefined, newData);\n }\n var setter = data ? baseSetData : setData;\n return setWrapToString(setter(result, newData), func, bitmask);\n }\n\n /**\n * Used by `_.defaults` to customize its `_.assignIn` use to assign properties\n * of source objects to the destination object for all destination properties\n * that resolve to `undefined`.\n *\n * @private\n * @param {*} objValue The destination value.\n * @param {*} srcValue The source value.\n * @param {string} key The key of the property to assign.\n * @param {Object} object The parent object of `objValue`.\n * @returns {*} Returns the value to assign.\n */\n function customDefaultsAssignIn(objValue, srcValue, key, object) {\n if (objValue === undefined ||\n (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) {\n return srcValue;\n }\n return objValue;\n }\n\n /**\n * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source\n * objects into destination objects that are passed thru.\n *\n * @private\n * @param {*} objValue The destination value.\n * @param {*} srcValue The source value.\n * @param {string} key The key of the property to merge.\n * @param {Object} object The parent object of `objValue`.\n * @param {Object} source The parent object of `srcValue`.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n * @returns {*} Returns the value to assign.\n */\n function customDefaultsMerge(objValue, srcValue, key, object, source, stack) {\n if (isObject(objValue) && isObject(srcValue)) {\n // Recursively merge objects and arrays (susceptible to call stack limits).\n stack.set(srcValue, objValue);\n baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack);\n stack['delete'](srcValue);\n }\n return objValue;\n }\n\n /**\n * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain\n * objects.\n *\n * @private\n * @param {*} value The value to inspect.\n * @param {string} key The key of the property to inspect.\n * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`.\n */\n function customOmitClone(value) {\n return isPlainObject(value) ? undefined : value;\n }\n\n /**\n * A specialized version of `baseIsEqualDeep` for arrays with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Array} array The array to compare.\n * @param {Array} other The other array to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `array` and `other` objects.\n * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.\n */\n function equalArrays(array, other, bitmask, customizer, equalFunc, stack) {\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n arrLength = array.length,\n othLength = other.length;\n\n if (arrLength != othLength && !(isPartial && othLength > arrLength)) {\n return false;\n }\n // Check that cyclic values are equal.\n var arrStacked = stack.get(array);\n var othStacked = stack.get(other);\n if (arrStacked && othStacked) {\n return arrStacked == other && othStacked == array;\n }\n var index = -1,\n result = true,\n seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined;\n\n stack.set(array, other);\n stack.set(other, array);\n\n // Ignore non-index properties.\n while (++index < arrLength) {\n var arrValue = array[index],\n othValue = other[index];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, arrValue, index, other, array, stack)\n : customizer(arrValue, othValue, index, array, other, stack);\n }\n if (compared !== undefined) {\n if (compared) {\n continue;\n }\n result = false;\n break;\n }\n // Recursively compare arrays (susceptible to call stack limits).\n if (seen) {\n if (!arraySome(other, function(othValue, othIndex) {\n if (!cacheHas(seen, othIndex) &&\n (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {\n return seen.push(othIndex);\n }\n })) {\n result = false;\n break;\n }\n } else if (!(\n arrValue === othValue ||\n equalFunc(arrValue, othValue, bitmask, customizer, stack)\n )) {\n result = false;\n break;\n }\n }\n stack['delete'](array);\n stack['delete'](other);\n return result;\n }\n\n /**\n * A specialized version of `baseIsEqualDeep` for comparing objects of\n * the same `toStringTag`.\n *\n * **Note:** This function only supports comparing values with tags of\n * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {string} tag The `toStringTag` of the objects to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\n function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {\n switch (tag) {\n case dataViewTag:\n if ((object.byteLength != other.byteLength) ||\n (object.byteOffset != other.byteOffset)) {\n return false;\n }\n object = object.buffer;\n other = other.buffer;\n\n case arrayBufferTag:\n if ((object.byteLength != other.byteLength) ||\n !equalFunc(new Uint8Array(object), new Uint8Array(other))) {\n return false;\n }\n return true;\n\n case boolTag:\n case dateTag:\n case numberTag:\n // Coerce booleans to `1` or `0` and dates to milliseconds.\n // Invalid dates are coerced to `NaN`.\n return eq(+object, +other);\n\n case errorTag:\n return object.name == other.name && object.message == other.message;\n\n case regexpTag:\n case stringTag:\n // Coerce regexes to strings and treat strings, primitives and objects,\n // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring\n // for more details.\n return object == (other + '');\n\n case mapTag:\n var convert = mapToArray;\n\n case setTag:\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG;\n convert || (convert = setToArray);\n\n if (object.size != other.size && !isPartial) {\n return false;\n }\n // Assume cyclic values are equal.\n var stacked = stack.get(object);\n if (stacked) {\n return stacked == other;\n }\n bitmask |= COMPARE_UNORDERED_FLAG;\n\n // Recursively compare objects (susceptible to call stack limits).\n stack.set(object, other);\n var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);\n stack['delete'](object);\n return result;\n\n case symbolTag:\n if (symbolValueOf) {\n return symbolValueOf.call(object) == symbolValueOf.call(other);\n }\n }\n return false;\n }\n\n /**\n * A specialized version of `baseIsEqualDeep` for objects with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\n function equalObjects(object, other, bitmask, customizer, equalFunc, stack) {\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n objProps = getAllKeys(object),\n objLength = objProps.length,\n othProps = getAllKeys(other),\n othLength = othProps.length;\n\n if (objLength != othLength && !isPartial) {\n return false;\n }\n var index = objLength;\n while (index--) {\n var key = objProps[index];\n if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {\n return false;\n }\n }\n // Check that cyclic values are equal.\n var objStacked = stack.get(object);\n var othStacked = stack.get(other);\n if (objStacked && othStacked) {\n return objStacked == other && othStacked == object;\n }\n var result = true;\n stack.set(object, other);\n stack.set(other, object);\n\n var skipCtor = isPartial;\n while (++index < objLength) {\n key = objProps[index];\n var objValue = object[key],\n othValue = other[key];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, objValue, key, other, object, stack)\n : customizer(objValue, othValue, key, object, other, stack);\n }\n // Recursively compare objects (susceptible to call stack limits).\n if (!(compared === undefined\n ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))\n : compared\n )) {\n result = false;\n break;\n }\n skipCtor || (skipCtor = key == 'constructor');\n }\n if (result && !skipCtor) {\n var objCtor = object.constructor,\n othCtor = other.constructor;\n\n // Non `Object` object instances with different constructors are not equal.\n if (objCtor != othCtor &&\n ('constructor' in object && 'constructor' in other) &&\n !(typeof objCtor == 'function' && objCtor instanceof objCtor &&\n typeof othCtor == 'function' && othCtor instanceof othCtor)) {\n result = false;\n }\n }\n stack['delete'](object);\n stack['delete'](other);\n return result;\n }\n\n /**\n * A specialized version of `baseRest` which flattens the rest array.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @returns {Function} Returns the new function.\n */\n function flatRest(func) {\n return setToString(overRest(func, undefined, flatten), func + '');\n }\n\n /**\n * Creates an array of own enumerable property names and symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\n function getAllKeys(object) {\n return baseGetAllKeys(object, keys, getSymbols);\n }\n\n /**\n * Creates an array of own and inherited enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\n function getAllKeysIn(object) {\n return baseGetAllKeys(object, keysIn, getSymbolsIn);\n }\n\n /**\n * Gets metadata for `func`.\n *\n * @private\n * @param {Function} func The function to query.\n * @returns {*} Returns the metadata for `func`.\n */\n var getData = !metaMap ? noop : function(func) {\n return metaMap.get(func);\n };\n\n /**\n * Gets the name of `func`.\n *\n * @private\n * @param {Function} func The function to query.\n * @returns {string} Returns the function name.\n */\n function getFuncName(func) {\n var result = (func.name + ''),\n array = realNames[result],\n length = hasOwnProperty.call(realNames, result) ? array.length : 0;\n\n while (length--) {\n var data = array[length],\n otherFunc = data.func;\n if (otherFunc == null || otherFunc == func) {\n return data.name;\n }\n }\n return result;\n }\n\n /**\n * Gets the argument placeholder value for `func`.\n *\n * @private\n * @param {Function} func The function to inspect.\n * @returns {*} Returns the placeholder value.\n */\n function getHolder(func) {\n var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func;\n return object.placeholder;\n }\n\n /**\n * Gets the appropriate \"iteratee\" function. If `_.iteratee` is customized,\n * this function returns the custom method, otherwise it returns `baseIteratee`.\n * If arguments are provided, the chosen function is invoked with them and\n * its result is returned.\n *\n * @private\n * @param {*} [value] The value to convert to an iteratee.\n * @param {number} [arity] The arity of the created iteratee.\n * @returns {Function} Returns the chosen function or its result.\n */\n function getIteratee() {\n var result = lodash.iteratee || iteratee;\n result = result === iteratee ? baseIteratee : result;\n return arguments.length ? result(arguments[0], arguments[1]) : result;\n }\n\n /**\n * Gets the data for `map`.\n *\n * @private\n * @param {Object} map The map to query.\n * @param {string} key The reference key.\n * @returns {*} Returns the map data.\n */\n function getMapData(map, key) {\n var data = map.__data__;\n return isKeyable(key)\n ? data[typeof key == 'string' ? 'string' : 'hash']\n : data.map;\n }\n\n /**\n * Gets the property names, values, and compare flags of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the match data of `object`.\n */\n function getMatchData(object) {\n var result = keys(object),\n length = result.length;\n\n while (length--) {\n var key = result[length],\n value = object[key];\n\n result[length] = [key, value, isStrictComparable(value)];\n }\n return result;\n }\n\n /**\n * Gets the native function at `key` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the method to get.\n * @returns {*} Returns the function if it's native, else `undefined`.\n */\n function getNative(object, key) {\n var value = getValue(object, key);\n return baseIsNative(value) ? value : undefined;\n }\n\n /**\n * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the raw `toStringTag`.\n */\n function getRawTag(value) {\n var isOwn = hasOwnProperty.call(value, symToStringTag),\n tag = value[symToStringTag];\n\n try {\n value[symToStringTag] = undefined;\n var unmasked = true;\n } catch (e) {}\n\n var result = nativeObjectToString.call(value);\n if (unmasked) {\n if (isOwn) {\n value[symToStringTag] = tag;\n } else {\n delete value[symToStringTag];\n }\n }\n return result;\n }\n\n /**\n * Creates an array of the own enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\n var getSymbols = !nativeGetSymbols ? stubArray : function(object) {\n if (object == null) {\n return [];\n }\n object = Object(object);\n return arrayFilter(nativeGetSymbols(object), function(symbol) {\n return propertyIsEnumerable.call(object, symbol);\n });\n };\n\n /**\n * Creates an array of the own and inherited enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\n var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) {\n var result = [];\n while (object) {\n arrayPush(result, getSymbols(object));\n object = getPrototype(object);\n }\n return result;\n };\n\n /**\n * Gets the `toStringTag` of `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\n var getTag = baseGetTag;\n\n // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.\n if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||\n (Map && getTag(new Map) != mapTag) ||\n (Promise && getTag(Promise.resolve()) != promiseTag) ||\n (Set && getTag(new Set) != setTag) ||\n (WeakMap && getTag(new WeakMap) != weakMapTag)) {\n getTag = function(value) {\n var result = baseGetTag(value),\n Ctor = result == objectTag ? value.constructor : undefined,\n ctorString = Ctor ? toSource(Ctor) : '';\n\n if (ctorString) {\n switch (ctorString) {\n case dataViewCtorString: return dataViewTag;\n case mapCtorString: return mapTag;\n case promiseCtorString: return promiseTag;\n case setCtorString: return setTag;\n case weakMapCtorString: return weakMapTag;\n }\n }\n return result;\n };\n }\n\n /**\n * Gets the view, applying any `transforms` to the `start` and `end` positions.\n *\n * @private\n * @param {number} start The start of the view.\n * @param {number} end The end of the view.\n * @param {Array} transforms The transformations to apply to the view.\n * @returns {Object} Returns an object containing the `start` and `end`\n * positions of the view.\n */\n function getView(start, end, transforms) {\n var index = -1,\n length = transforms.length;\n\n while (++index < length) {\n var data = transforms[index],\n size = data.size;\n\n switch (data.type) {\n case 'drop': start += size; break;\n case 'dropRight': end -= size; break;\n case 'take': end = nativeMin(end, start + size); break;\n case 'takeRight': start = nativeMax(start, end - size); break;\n }\n }\n return { 'start': start, 'end': end };\n }\n\n /**\n * Extracts wrapper details from the `source` body comment.\n *\n * @private\n * @param {string} source The source to inspect.\n * @returns {Array} Returns the wrapper details.\n */\n function getWrapDetails(source) {\n var match = source.match(reWrapDetails);\n return match ? match[1].split(reSplitDetails) : [];\n }\n\n /**\n * Checks if `path` exists on `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @param {Function} hasFunc The function to check properties.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n */\n function hasPath(object, path, hasFunc) {\n path = castPath(path, object);\n\n var index = -1,\n length = path.length,\n result = false;\n\n while (++index < length) {\n var key = toKey(path[index]);\n if (!(result = object != null && hasFunc(object, key))) {\n break;\n }\n object = object[key];\n }\n if (result || ++index != length) {\n return result;\n }\n length = object == null ? 0 : object.length;\n return !!length && isLength(length) && isIndex(key, length) &&\n (isArray(object) || isArguments(object));\n }\n\n /**\n * Initializes an array clone.\n *\n * @private\n * @param {Array} array The array to clone.\n * @returns {Array} Returns the initialized clone.\n */\n function initCloneArray(array) {\n var length = array.length,\n result = new array.constructor(length);\n\n // Add properties assigned by `RegExp#exec`.\n if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {\n result.index = array.index;\n result.input = array.input;\n }\n return result;\n }\n\n /**\n * Initializes an object clone.\n *\n * @private\n * @param {Object} object The object to clone.\n * @returns {Object} Returns the initialized clone.\n */\n function initCloneObject(object) {\n return (typeof object.constructor == 'function' && !isPrototype(object))\n ? baseCreate(getPrototype(object))\n : {};\n }\n\n /**\n * Initializes an object clone based on its `toStringTag`.\n *\n * **Note:** This function only supports cloning values with tags of\n * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.\n *\n * @private\n * @param {Object} object The object to clone.\n * @param {string} tag The `toStringTag` of the object to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the initialized clone.\n */\n function initCloneByTag(object, tag, isDeep) {\n var Ctor = object.constructor;\n switch (tag) {\n case arrayBufferTag:\n return cloneArrayBuffer(object);\n\n case boolTag:\n case dateTag:\n return new Ctor(+object);\n\n case dataViewTag:\n return cloneDataView(object, isDeep);\n\n case float32Tag: case float64Tag:\n case int8Tag: case int16Tag: case int32Tag:\n case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:\n return cloneTypedArray(object, isDeep);\n\n case mapTag:\n return new Ctor;\n\n case numberTag:\n case stringTag:\n return new Ctor(object);\n\n case regexpTag:\n return cloneRegExp(object);\n\n case setTag:\n return new Ctor;\n\n case symbolTag:\n return cloneSymbol(object);\n }\n }\n\n /**\n * Inserts wrapper `details` in a comment at the top of the `source` body.\n *\n * @private\n * @param {string} source The source to modify.\n * @returns {Array} details The details to insert.\n * @returns {string} Returns the modified source.\n */\n function insertWrapDetails(source, details) {\n var length = details.length;\n if (!length) {\n return source;\n }\n var lastIndex = length - 1;\n details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex];\n details = details.join(length > 2 ? ', ' : ' ');\n return source.replace(reWrapComment, '{\\n/* [wrapped with ' + details + '] */\\n');\n }\n\n /**\n * Checks if `value` is a flattenable `arguments` object or array.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.\n */\n function isFlattenable(value) {\n return isArray(value) || isArguments(value) ||\n !!(spreadableSymbol && value && value[spreadableSymbol]);\n }\n\n /**\n * Checks if `value` is a valid array-like index.\n *\n * @private\n * @param {*} value The value to check.\n * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n */\n function isIndex(value, length) {\n var type = typeof value;\n length = length == null ? MAX_SAFE_INTEGER : length;\n\n return !!length &&\n (type == 'number' ||\n (type != 'symbol' && reIsUint.test(value))) &&\n (value > -1 && value % 1 == 0 && value < length);\n }\n\n /**\n * Checks if the given arguments are from an iteratee call.\n *\n * @private\n * @param {*} value The potential iteratee value argument.\n * @param {*} index The potential iteratee index or key argument.\n * @param {*} object The potential iteratee object argument.\n * @returns {boolean} Returns `true` if the arguments are from an iteratee call,\n * else `false`.\n */\n function isIterateeCall(value, index, object) {\n if (!isObject(object)) {\n return false;\n }\n var type = typeof index;\n if (type == 'number'\n ? (isArrayLike(object) && isIndex(index, object.length))\n : (type == 'string' && index in object)\n ) {\n return eq(object[index], value);\n }\n return false;\n }\n\n /**\n * Checks if `value` is a property name and not a property path.\n *\n * @private\n * @param {*} value The value to check.\n * @param {Object} [object] The object to query keys on.\n * @returns {boolean} Returns `true` if `value` is a property name, else `false`.\n */\n function isKey(value, object) {\n if (isArray(value)) {\n return false;\n }\n var type = typeof value;\n if (type == 'number' || type == 'symbol' || type == 'boolean' ||\n value == null || isSymbol(value)) {\n return true;\n }\n return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||\n (object != null && value in Object(object));\n }\n\n /**\n * Checks if `value` is suitable for use as unique object key.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is suitable, else `false`.\n */\n function isKeyable(value) {\n var type = typeof value;\n return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')\n ? (value !== '__proto__')\n : (value === null);\n }\n\n /**\n * Checks if `func` has a lazy counterpart.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` has a lazy counterpart,\n * else `false`.\n */\n function isLaziable(func) {\n var funcName = getFuncName(func),\n other = lodash[funcName];\n\n if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) {\n return false;\n }\n if (func === other) {\n return true;\n }\n var data = getData(other);\n return !!data && func === data[0];\n }\n\n /**\n * Checks if `func` has its source masked.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` is masked, else `false`.\n */\n function isMasked(func) {\n return !!maskSrcKey && (maskSrcKey in func);\n }\n\n /**\n * Checks if `func` is capable of being masked.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `func` is maskable, else `false`.\n */\n var isMaskable = coreJsData ? isFunction : stubFalse;\n\n /**\n * Checks if `value` is likely a prototype object.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.\n */\n function isPrototype(value) {\n var Ctor = value && value.constructor,\n proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;\n\n return value === proto;\n }\n\n /**\n * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` if suitable for strict\n * equality comparisons, else `false`.\n */\n function isStrictComparable(value) {\n return value === value && !isObject(value);\n }\n\n /**\n * A specialized version of `matchesProperty` for source values suitable\n * for strict equality comparisons, i.e. `===`.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @param {*} srcValue The value to match.\n * @returns {Function} Returns the new spec function.\n */\n function matchesStrictComparable(key, srcValue) {\n return function(object) {\n if (object == null) {\n return false;\n }\n return object[key] === srcValue &&\n (srcValue !== undefined || (key in Object(object)));\n };\n }\n\n /**\n * A specialized version of `_.memoize` which clears the memoized function's\n * cache when it exceeds `MAX_MEMOIZE_SIZE`.\n *\n * @private\n * @param {Function} func The function to have its output memoized.\n * @returns {Function} Returns the new memoized function.\n */\n function memoizeCapped(func) {\n var result = memoize(func, function(key) {\n if (cache.size === MAX_MEMOIZE_SIZE) {\n cache.clear();\n }\n return key;\n });\n\n var cache = result.cache;\n return result;\n }\n\n /**\n * Merges the function metadata of `source` into `data`.\n *\n * Merging metadata reduces the number of wrappers used to invoke a function.\n * This is possible because methods like `_.bind`, `_.curry`, and `_.partial`\n * may be applied regardless of execution order. Methods like `_.ary` and\n * `_.rearg` modify function arguments, making the order in which they are\n * executed important, preventing the merging of metadata. However, we make\n * an exception for a safe combined case where curried functions have `_.ary`\n * and or `_.rearg` applied.\n *\n * @private\n * @param {Array} data The destination metadata.\n * @param {Array} source The source metadata.\n * @returns {Array} Returns `data`.\n */\n function mergeData(data, source) {\n var bitmask = data[1],\n srcBitmask = source[1],\n newBitmask = bitmask | srcBitmask,\n isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG);\n\n var isCombo =\n ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) ||\n ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) ||\n ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG));\n\n // Exit early if metadata can't be merged.\n if (!(isCommon || isCombo)) {\n return data;\n }\n // Use source `thisArg` if available.\n if (srcBitmask & WRAP_BIND_FLAG) {\n data[2] = source[2];\n // Set when currying a bound function.\n newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG;\n }\n // Compose partial arguments.\n var value = source[3];\n if (value) {\n var partials = data[3];\n data[3] = partials ? composeArgs(partials, value, source[4]) : value;\n data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4];\n }\n // Compose partial right arguments.\n value = source[5];\n if (value) {\n partials = data[5];\n data[5] = partials ? composeArgsRight(partials, value, source[6]) : value;\n data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6];\n }\n // Use source `argPos` if available.\n value = source[7];\n if (value) {\n data[7] = value;\n }\n // Use source `ary` if it's smaller.\n if (srcBitmask & WRAP_ARY_FLAG) {\n data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);\n }\n // Use source `arity` if one is not provided.\n if (data[9] == null) {\n data[9] = source[9];\n }\n // Use source `func` and merge bitmasks.\n data[0] = source[0];\n data[1] = newBitmask;\n\n return data;\n }\n\n /**\n * This function is like\n * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * except that it includes inherited enumerable properties.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\n function nativeKeysIn(object) {\n var result = [];\n if (object != null) {\n for (var key in Object(object)) {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * Converts `value` to a string using `Object.prototype.toString`.\n *\n * @private\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n */\n function objectToString(value) {\n return nativeObjectToString.call(value);\n }\n\n /**\n * A specialized version of `baseRest` which transforms the rest array.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @param {Function} transform The rest array transform.\n * @returns {Function} Returns the new function.\n */\n function overRest(func, start, transform) {\n start = nativeMax(start === undefined ? (func.length - 1) : start, 0);\n return function() {\n var args = arguments,\n index = -1,\n length = nativeMax(args.length - start, 0),\n array = Array(length);\n\n while (++index < length) {\n array[index] = args[start + index];\n }\n index = -1;\n var otherArgs = Array(start + 1);\n while (++index < start) {\n otherArgs[index] = args[index];\n }\n otherArgs[start] = transform(array);\n return apply(func, this, otherArgs);\n };\n }\n\n /**\n * Gets the parent value at `path` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} path The path to get the parent value of.\n * @returns {*} Returns the parent value.\n */\n function parent(object, path) {\n return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1));\n }\n\n /**\n * Reorder `array` according to the specified indexes where the element at\n * the first index is assigned as the first element, the element at\n * the second index is assigned as the second element, and so on.\n *\n * @private\n * @param {Array} array The array to reorder.\n * @param {Array} indexes The arranged array indexes.\n * @returns {Array} Returns `array`.\n */\n function reorder(array, indexes) {\n var arrLength = array.length,\n length = nativeMin(indexes.length, arrLength),\n oldArray = copyArray(array);\n\n while (length--) {\n var index = indexes[length];\n array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;\n }\n return array;\n }\n\n /**\n * Gets the value at `key`, unless `key` is \"__proto__\" or \"constructor\".\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\n function safeGet(object, key) {\n if (key === 'constructor' && typeof object[key] === 'function') {\n return;\n }\n\n if (key == '__proto__') {\n return;\n }\n\n return object[key];\n }\n\n /**\n * Sets metadata for `func`.\n *\n * **Note:** If this function becomes hot, i.e. is invoked a lot in a short\n * period of time, it will trip its breaker and transition to an identity\n * function to avoid garbage collection pauses in V8. See\n * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070)\n * for more details.\n *\n * @private\n * @param {Function} func The function to associate metadata with.\n * @param {*} data The metadata.\n * @returns {Function} Returns `func`.\n */\n var setData = shortOut(baseSetData);\n\n /**\n * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout).\n *\n * @private\n * @param {Function} func The function to delay.\n * @param {number} wait The number of milliseconds to delay invocation.\n * @returns {number|Object} Returns the timer id or timeout object.\n */\n var setTimeout = ctxSetTimeout || function(func, wait) {\n return root.setTimeout(func, wait);\n };\n\n /**\n * Sets the `toString` method of `func` to return `string`.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\n var setToString = shortOut(baseSetToString);\n\n /**\n * Sets the `toString` method of `wrapper` to mimic the source of `reference`\n * with wrapper details in a comment at the top of the source body.\n *\n * @private\n * @param {Function} wrapper The function to modify.\n * @param {Function} reference The reference function.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @returns {Function} Returns `wrapper`.\n */\n function setWrapToString(wrapper, reference, bitmask) {\n var source = (reference + '');\n return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask)));\n }\n\n /**\n * Creates a function that'll short out and invoke `identity` instead\n * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`\n * milliseconds.\n *\n * @private\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new shortable function.\n */\n function shortOut(func) {\n var count = 0,\n lastCalled = 0;\n\n return function() {\n var stamp = nativeNow(),\n remaining = HOT_SPAN - (stamp - lastCalled);\n\n lastCalled = stamp;\n if (remaining > 0) {\n if (++count >= HOT_COUNT) {\n return arguments[0];\n }\n } else {\n count = 0;\n }\n return func.apply(undefined, arguments);\n };\n }\n\n /**\n * A specialized version of `_.shuffle` which mutates and sets the size of `array`.\n *\n * @private\n * @param {Array} array The array to shuffle.\n * @param {number} [size=array.length] The size of `array`.\n * @returns {Array} Returns `array`.\n */\n function shuffleSelf(array, size) {\n var index = -1,\n length = array.length,\n lastIndex = length - 1;\n\n size = size === undefined ? length : size;\n while (++index < size) {\n var rand = baseRandom(index, lastIndex),\n value = array[rand];\n\n array[rand] = array[index];\n array[index] = value;\n }\n array.length = size;\n return array;\n }\n\n /**\n * Converts `string` to a property path array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the property path array.\n */\n var stringToPath = memoizeCapped(function(string) {\n var result = [];\n if (string.charCodeAt(0) === 46 /* . */) {\n result.push('');\n }\n string.replace(rePropName, function(match, number, quote, subString) {\n result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match));\n });\n return result;\n });\n\n /**\n * Converts `value` to a string key if it's not a string or symbol.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {string|symbol} Returns the key.\n */\n function toKey(value) {\n if (typeof value == 'string' || isSymbol(value)) {\n return value;\n }\n var result = (value + '');\n return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n }\n\n /**\n * Converts `func` to its source code.\n *\n * @private\n * @param {Function} func The function to convert.\n * @returns {string} Returns the source code.\n */\n function toSource(func) {\n if (func != null) {\n try {\n return funcToString.call(func);\n } catch (e) {}\n try {\n return (func + '');\n } catch (e) {}\n }\n return '';\n }\n\n /**\n * Updates wrapper `details` based on `bitmask` flags.\n *\n * @private\n * @returns {Array} details The details to modify.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @returns {Array} Returns `details`.\n */\n function updateWrapDetails(details, bitmask) {\n arrayEach(wrapFlags, function(pair) {\n var value = '_.' + pair[0];\n if ((bitmask & pair[1]) && !arrayIncludes(details, value)) {\n details.push(value);\n }\n });\n return details.sort();\n }\n\n /**\n * Creates a clone of `wrapper`.\n *\n * @private\n * @param {Object} wrapper The wrapper to clone.\n * @returns {Object} Returns the cloned wrapper.\n */\n function wrapperClone(wrapper) {\n if (wrapper instanceof LazyWrapper) {\n return wrapper.clone();\n }\n var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__);\n result.__actions__ = copyArray(wrapper.__actions__);\n result.__index__ = wrapper.__index__;\n result.__values__ = wrapper.__values__;\n return result;\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an array of elements split into groups the length of `size`.\n * If `array` can't be split evenly, the final chunk will be the remaining\n * elements.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to process.\n * @param {number} [size=1] The length of each chunk\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the new array of chunks.\n * @example\n *\n * _.chunk(['a', 'b', 'c', 'd'], 2);\n * // => [['a', 'b'], ['c', 'd']]\n *\n * _.chunk(['a', 'b', 'c', 'd'], 3);\n * // => [['a', 'b', 'c'], ['d']]\n */\n function chunk(array, size, guard) {\n if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) {\n size = 1;\n } else {\n size = nativeMax(toInteger(size), 0);\n }\n var length = array == null ? 0 : array.length;\n if (!length || size < 1) {\n return [];\n }\n var index = 0,\n resIndex = 0,\n result = Array(nativeCeil(length / size));\n\n while (index < length) {\n result[resIndex++] = baseSlice(array, index, (index += size));\n }\n return result;\n }\n\n /**\n * Creates an array with all falsey values removed. The values `false`, `null`,\n * `0`, `\"\"`, `undefined`, and `NaN` are falsey.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to compact.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * _.compact([0, 1, false, 2, '', 3]);\n * // => [1, 2, 3]\n */\n function compact(array) {\n var index = -1,\n length = array == null ? 0 : array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (value) {\n result[resIndex++] = value;\n }\n }\n return result;\n }\n\n /**\n * Creates a new array concatenating `array` with any additional arrays\n * and/or values.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to concatenate.\n * @param {...*} [values] The values to concatenate.\n * @returns {Array} Returns the new concatenated array.\n * @example\n *\n * var array = [1];\n * var other = _.concat(array, 2, [3], [[4]]);\n *\n * console.log(other);\n * // => [1, 2, 3, [4]]\n *\n * console.log(array);\n * // => [1]\n */\n function concat() {\n var length = arguments.length;\n if (!length) {\n return [];\n }\n var args = Array(length - 1),\n array = arguments[0],\n index = length;\n\n while (index--) {\n args[index - 1] = arguments[index];\n }\n return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1));\n }\n\n /**\n * Creates an array of `array` values not included in the other given arrays\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons. The order and references of result values are\n * determined by the first array.\n *\n * **Note:** Unlike `_.pullAll`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...Array} [values] The values to exclude.\n * @returns {Array} Returns the new array of filtered values.\n * @see _.without, _.xor\n * @example\n *\n * _.difference([2, 1], [2, 3]);\n * // => [1]\n */\n var difference = baseRest(function(array, values) {\n return isArrayLikeObject(array)\n ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true))\n : [];\n });\n\n /**\n * This method is like `_.difference` except that it accepts `iteratee` which\n * is invoked for each element of `array` and `values` to generate the criterion\n * by which they're compared. The order and references of result values are\n * determined by the first array. The iteratee is invoked with one argument:\n * (value).\n *\n * **Note:** Unlike `_.pullAllBy`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...Array} [values] The values to exclude.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n * // => [1.2]\n *\n * // The `_.property` iteratee shorthand.\n * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');\n * // => [{ 'x': 2 }]\n */\n var differenceBy = baseRest(function(array, values) {\n var iteratee = last(values);\n if (isArrayLikeObject(iteratee)) {\n iteratee = undefined;\n }\n return isArrayLikeObject(array)\n ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2))\n : [];\n });\n\n /**\n * This method is like `_.difference` except that it accepts `comparator`\n * which is invoked to compare elements of `array` to `values`. The order and\n * references of result values are determined by the first array. The comparator\n * is invoked with two arguments: (arrVal, othVal).\n *\n * **Note:** Unlike `_.pullAllWith`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...Array} [values] The values to exclude.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n *\n * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);\n * // => [{ 'x': 2, 'y': 1 }]\n */\n var differenceWith = baseRest(function(array, values) {\n var comparator = last(values);\n if (isArrayLikeObject(comparator)) {\n comparator = undefined;\n }\n return isArrayLikeObject(array)\n ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator)\n : [];\n });\n\n /**\n * Creates a slice of `array` with `n` elements dropped from the beginning.\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to drop.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.drop([1, 2, 3]);\n * // => [2, 3]\n *\n * _.drop([1, 2, 3], 2);\n * // => [3]\n *\n * _.drop([1, 2, 3], 5);\n * // => []\n *\n * _.drop([1, 2, 3], 0);\n * // => [1, 2, 3]\n */\n function drop(array, n, guard) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n return baseSlice(array, n < 0 ? 0 : n, length);\n }\n\n /**\n * Creates a slice of `array` with `n` elements dropped from the end.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to drop.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.dropRight([1, 2, 3]);\n * // => [1, 2]\n *\n * _.dropRight([1, 2, 3], 2);\n * // => [1]\n *\n * _.dropRight([1, 2, 3], 5);\n * // => []\n *\n * _.dropRight([1, 2, 3], 0);\n * // => [1, 2, 3]\n */\n function dropRight(array, n, guard) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n n = length - n;\n return baseSlice(array, 0, n < 0 ? 0 : n);\n }\n\n /**\n * Creates a slice of `array` excluding elements dropped from the end.\n * Elements are dropped until `predicate` returns falsey. The predicate is\n * invoked with three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': false }\n * ];\n *\n * _.dropRightWhile(users, function(o) { return !o.active; });\n * // => objects for ['barney']\n *\n * // The `_.matches` iteratee shorthand.\n * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false });\n * // => objects for ['barney', 'fred']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.dropRightWhile(users, ['active', false]);\n * // => objects for ['barney']\n *\n * // The `_.property` iteratee shorthand.\n * _.dropRightWhile(users, 'active');\n * // => objects for ['barney', 'fred', 'pebbles']\n */\n function dropRightWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3), true, true)\n : [];\n }\n\n /**\n * Creates a slice of `array` excluding elements dropped from the beginning.\n * Elements are dropped until `predicate` returns falsey. The predicate is\n * invoked with three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': false },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': true }\n * ];\n *\n * _.dropWhile(users, function(o) { return !o.active; });\n * // => objects for ['pebbles']\n *\n * // The `_.matches` iteratee shorthand.\n * _.dropWhile(users, { 'user': 'barney', 'active': false });\n * // => objects for ['fred', 'pebbles']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.dropWhile(users, ['active', false]);\n * // => objects for ['pebbles']\n *\n * // The `_.property` iteratee shorthand.\n * _.dropWhile(users, 'active');\n * // => objects for ['barney', 'fred', 'pebbles']\n */\n function dropWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3), true)\n : [];\n }\n\n /**\n * Fills elements of `array` with `value` from `start` up to, but not\n * including, `end`.\n *\n * **Note:** This method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 3.2.0\n * @category Array\n * @param {Array} array The array to fill.\n * @param {*} value The value to fill `array` with.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [1, 2, 3];\n *\n * _.fill(array, 'a');\n * console.log(array);\n * // => ['a', 'a', 'a']\n *\n * _.fill(Array(3), 2);\n * // => [2, 2, 2]\n *\n * _.fill([4, 6, 8, 10], '*', 1, 3);\n * // => [4, '*', '*', 10]\n */\n function fill(array, value, start, end) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {\n start = 0;\n end = length;\n }\n return baseFill(array, value, start, end);\n }\n\n /**\n * This method is like `_.find` except that it returns the index of the first\n * element `predicate` returns truthy for instead of the element itself.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=0] The index to search from.\n * @returns {number} Returns the index of the found element, else `-1`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': false },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': true }\n * ];\n *\n * _.findIndex(users, function(o) { return o.user == 'barney'; });\n * // => 0\n *\n * // The `_.matches` iteratee shorthand.\n * _.findIndex(users, { 'user': 'fred', 'active': false });\n * // => 1\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findIndex(users, ['active', false]);\n * // => 0\n *\n * // The `_.property` iteratee shorthand.\n * _.findIndex(users, 'active');\n * // => 2\n */\n function findIndex(array, predicate, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = fromIndex == null ? 0 : toInteger(fromIndex);\n if (index < 0) {\n index = nativeMax(length + index, 0);\n }\n return baseFindIndex(array, getIteratee(predicate, 3), index);\n }\n\n /**\n * This method is like `_.findIndex` except that it iterates over elements\n * of `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=array.length-1] The index to search from.\n * @returns {number} Returns the index of the found element, else `-1`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': false }\n * ];\n *\n * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; });\n * // => 2\n *\n * // The `_.matches` iteratee shorthand.\n * _.findLastIndex(users, { 'user': 'barney', 'active': true });\n * // => 0\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findLastIndex(users, ['active', false]);\n * // => 2\n *\n * // The `_.property` iteratee shorthand.\n * _.findLastIndex(users, 'active');\n * // => 0\n */\n function findLastIndex(array, predicate, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = length - 1;\n if (fromIndex !== undefined) {\n index = toInteger(fromIndex);\n index = fromIndex < 0\n ? nativeMax(length + index, 0)\n : nativeMin(index, length - 1);\n }\n return baseFindIndex(array, getIteratee(predicate, 3), index, true);\n }\n\n /**\n * Flattens `array` a single level deep.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to flatten.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * _.flatten([1, [2, [3, [4]], 5]]);\n * // => [1, 2, [3, [4]], 5]\n */\n function flatten(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseFlatten(array, 1) : [];\n }\n\n /**\n * Recursively flattens `array`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to flatten.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * _.flattenDeep([1, [2, [3, [4]], 5]]);\n * // => [1, 2, 3, 4, 5]\n */\n function flattenDeep(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseFlatten(array, INFINITY) : [];\n }\n\n /**\n * Recursively flatten `array` up to `depth` times.\n *\n * @static\n * @memberOf _\n * @since 4.4.0\n * @category Array\n * @param {Array} array The array to flatten.\n * @param {number} [depth=1] The maximum recursion depth.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * var array = [1, [2, [3, [4]], 5]];\n *\n * _.flattenDepth(array, 1);\n * // => [1, 2, [3, [4]], 5]\n *\n * _.flattenDepth(array, 2);\n * // => [1, 2, 3, [4], 5]\n */\n function flattenDepth(array, depth) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n depth = depth === undefined ? 1 : toInteger(depth);\n return baseFlatten(array, depth);\n }\n\n /**\n * The inverse of `_.toPairs`; this method returns an object composed\n * from key-value `pairs`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} pairs The key-value pairs.\n * @returns {Object} Returns the new object.\n * @example\n *\n * _.fromPairs([['a', 1], ['b', 2]]);\n * // => { 'a': 1, 'b': 2 }\n */\n function fromPairs(pairs) {\n var index = -1,\n length = pairs == null ? 0 : pairs.length,\n result = {};\n\n while (++index < length) {\n var pair = pairs[index];\n result[pair[0]] = pair[1];\n }\n return result;\n }\n\n /**\n * Gets the first element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @alias first\n * @category Array\n * @param {Array} array The array to query.\n * @returns {*} Returns the first element of `array`.\n * @example\n *\n * _.head([1, 2, 3]);\n * // => 1\n *\n * _.head([]);\n * // => undefined\n */\n function head(array) {\n return (array && array.length) ? array[0] : undefined;\n }\n\n /**\n * Gets the index at which the first occurrence of `value` is found in `array`\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons. If `fromIndex` is negative, it's used as the\n * offset from the end of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} [fromIndex=0] The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.indexOf([1, 2, 1, 2], 2);\n * // => 1\n *\n * // Search from the `fromIndex`.\n * _.indexOf([1, 2, 1, 2], 2, 2);\n * // => 3\n */\n function indexOf(array, value, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = fromIndex == null ? 0 : toInteger(fromIndex);\n if (index < 0) {\n index = nativeMax(length + index, 0);\n }\n return baseIndexOf(array, value, index);\n }\n\n /**\n * Gets all but the last element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.initial([1, 2, 3]);\n * // => [1, 2]\n */\n function initial(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseSlice(array, 0, -1) : [];\n }\n\n /**\n * Creates an array of unique values that are included in all given arrays\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons. The order and references of result values are\n * determined by the first array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @returns {Array} Returns the new array of intersecting values.\n * @example\n *\n * _.intersection([2, 1], [2, 3]);\n * // => [2]\n */\n var intersection = baseRest(function(arrays) {\n var mapped = arrayMap(arrays, castArrayLikeObject);\n return (mapped.length && mapped[0] === arrays[0])\n ? baseIntersection(mapped)\n : [];\n });\n\n /**\n * This method is like `_.intersection` except that it accepts `iteratee`\n * which is invoked for each element of each `arrays` to generate the criterion\n * by which they're compared. The order and references of result values are\n * determined by the first array. The iteratee is invoked with one argument:\n * (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of intersecting values.\n * @example\n *\n * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n * // => [2.1]\n *\n * // The `_.property` iteratee shorthand.\n * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 1 }]\n */\n var intersectionBy = baseRest(function(arrays) {\n var iteratee = last(arrays),\n mapped = arrayMap(arrays, castArrayLikeObject);\n\n if (iteratee === last(mapped)) {\n iteratee = undefined;\n } else {\n mapped.pop();\n }\n return (mapped.length && mapped[0] === arrays[0])\n ? baseIntersection(mapped, getIteratee(iteratee, 2))\n : [];\n });\n\n /**\n * This method is like `_.intersection` except that it accepts `comparator`\n * which is invoked to compare elements of `arrays`. The order and references\n * of result values are determined by the first array. The comparator is\n * invoked with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of intersecting values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.intersectionWith(objects, others, _.isEqual);\n * // => [{ 'x': 1, 'y': 2 }]\n */\n var intersectionWith = baseRest(function(arrays) {\n var comparator = last(arrays),\n mapped = arrayMap(arrays, castArrayLikeObject);\n\n comparator = typeof comparator == 'function' ? comparator : undefined;\n if (comparator) {\n mapped.pop();\n }\n return (mapped.length && mapped[0] === arrays[0])\n ? baseIntersection(mapped, undefined, comparator)\n : [];\n });\n\n /**\n * Converts all elements in `array` into a string separated by `separator`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to convert.\n * @param {string} [separator=','] The element separator.\n * @returns {string} Returns the joined string.\n * @example\n *\n * _.join(['a', 'b', 'c'], '~');\n * // => 'a~b~c'\n */\n function join(array, separator) {\n return array == null ? '' : nativeJoin.call(array, separator);\n }\n\n /**\n * Gets the last element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {*} Returns the last element of `array`.\n * @example\n *\n * _.last([1, 2, 3]);\n * // => 3\n */\n function last(array) {\n var length = array == null ? 0 : array.length;\n return length ? array[length - 1] : undefined;\n }\n\n /**\n * This method is like `_.indexOf` except that it iterates over elements of\n * `array` from right to left.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} [fromIndex=array.length-1] The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.lastIndexOf([1, 2, 1, 2], 2);\n * // => 3\n *\n * // Search from the `fromIndex`.\n * _.lastIndexOf([1, 2, 1, 2], 2, 2);\n * // => 1\n */\n function lastIndexOf(array, value, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = length;\n if (fromIndex !== undefined) {\n index = toInteger(fromIndex);\n index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1);\n }\n return value === value\n ? strictLastIndexOf(array, value, index)\n : baseFindIndex(array, baseIsNaN, index, true);\n }\n\n /**\n * Gets the element at index `n` of `array`. If `n` is negative, the nth\n * element from the end is returned.\n *\n * @static\n * @memberOf _\n * @since 4.11.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=0] The index of the element to return.\n * @returns {*} Returns the nth element of `array`.\n * @example\n *\n * var array = ['a', 'b', 'c', 'd'];\n *\n * _.nth(array, 1);\n * // => 'b'\n *\n * _.nth(array, -2);\n * // => 'c';\n */\n function nth(array, n) {\n return (array && array.length) ? baseNth(array, toInteger(n)) : undefined;\n }\n\n /**\n * Removes all given values from `array` using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`\n * to remove elements from an array by predicate.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {...*} [values] The values to remove.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = ['a', 'b', 'c', 'a', 'b', 'c'];\n *\n * _.pull(array, 'a', 'c');\n * console.log(array);\n * // => ['b', 'b']\n */\n var pull = baseRest(pullAll);\n\n /**\n * This method is like `_.pull` except that it accepts an array of values to remove.\n *\n * **Note:** Unlike `_.difference`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = ['a', 'b', 'c', 'a', 'b', 'c'];\n *\n * _.pullAll(array, ['a', 'c']);\n * console.log(array);\n * // => ['b', 'b']\n */\n function pullAll(array, values) {\n return (array && array.length && values && values.length)\n ? basePullAll(array, values)\n : array;\n }\n\n /**\n * This method is like `_.pullAll` except that it accepts `iteratee` which is\n * invoked for each element of `array` and `values` to generate the criterion\n * by which they're compared. The iteratee is invoked with one argument: (value).\n *\n * **Note:** Unlike `_.differenceBy`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }];\n *\n * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x');\n * console.log(array);\n * // => [{ 'x': 2 }]\n */\n function pullAllBy(array, values, iteratee) {\n return (array && array.length && values && values.length)\n ? basePullAll(array, values, getIteratee(iteratee, 2))\n : array;\n }\n\n /**\n * This method is like `_.pullAll` except that it accepts `comparator` which\n * is invoked to compare elements of `array` to `values`. The comparator is\n * invoked with two arguments: (arrVal, othVal).\n *\n * **Note:** Unlike `_.differenceWith`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }];\n *\n * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual);\n * console.log(array);\n * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }]\n */\n function pullAllWith(array, values, comparator) {\n return (array && array.length && values && values.length)\n ? basePullAll(array, values, undefined, comparator)\n : array;\n }\n\n /**\n * Removes elements from `array` corresponding to `indexes` and returns an\n * array of removed elements.\n *\n * **Note:** Unlike `_.at`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {...(number|number[])} [indexes] The indexes of elements to remove.\n * @returns {Array} Returns the new array of removed elements.\n * @example\n *\n * var array = ['a', 'b', 'c', 'd'];\n * var pulled = _.pullAt(array, [1, 3]);\n *\n * console.log(array);\n * // => ['a', 'c']\n *\n * console.log(pulled);\n * // => ['b', 'd']\n */\n var pullAt = flatRest(function(array, indexes) {\n var length = array == null ? 0 : array.length,\n result = baseAt(array, indexes);\n\n basePullAt(array, arrayMap(indexes, function(index) {\n return isIndex(index, length) ? +index : index;\n }).sort(compareAscending));\n\n return result;\n });\n\n /**\n * Removes all elements from `array` that `predicate` returns truthy for\n * and returns an array of the removed elements. The predicate is invoked\n * with three arguments: (value, index, array).\n *\n * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull`\n * to pull elements from an array by value.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new array of removed elements.\n * @example\n *\n * var array = [1, 2, 3, 4];\n * var evens = _.remove(array, function(n) {\n * return n % 2 == 0;\n * });\n *\n * console.log(array);\n * // => [1, 3]\n *\n * console.log(evens);\n * // => [2, 4]\n */\n function remove(array, predicate) {\n var result = [];\n if (!(array && array.length)) {\n return result;\n }\n var index = -1,\n indexes = [],\n length = array.length;\n\n predicate = getIteratee(predicate, 3);\n while (++index < length) {\n var value = array[index];\n if (predicate(value, index, array)) {\n result.push(value);\n indexes.push(index);\n }\n }\n basePullAt(array, indexes);\n return result;\n }\n\n /**\n * Reverses `array` so that the first element becomes the last, the second\n * element becomes the second to last, and so on.\n *\n * **Note:** This method mutates `array` and is based on\n * [`Array#reverse`](https://mdn.io/Array/reverse).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [1, 2, 3];\n *\n * _.reverse(array);\n * // => [3, 2, 1]\n *\n * console.log(array);\n * // => [3, 2, 1]\n */\n function reverse(array) {\n return array == null ? array : nativeReverse.call(array);\n }\n\n /**\n * Creates a slice of `array` from `start` up to, but not including, `end`.\n *\n * **Note:** This method is used instead of\n * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are\n * returned.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to slice.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the slice of `array`.\n */\n function slice(array, start, end) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {\n start = 0;\n end = length;\n }\n else {\n start = start == null ? 0 : toInteger(start);\n end = end === undefined ? length : toInteger(end);\n }\n return baseSlice(array, start, end);\n }\n\n /**\n * Uses a binary search to determine the lowest index at which `value`\n * should be inserted into `array` in order to maintain its sort order.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * _.sortedIndex([30, 50], 40);\n * // => 1\n */\n function sortedIndex(array, value) {\n return baseSortedIndex(array, value);\n }\n\n /**\n * This method is like `_.sortedIndex` except that it accepts `iteratee`\n * which is invoked for `value` and each element of `array` to compute their\n * sort ranking. The iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * var objects = [{ 'x': 4 }, { 'x': 5 }];\n *\n * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });\n * // => 0\n *\n * // The `_.property` iteratee shorthand.\n * _.sortedIndexBy(objects, { 'x': 4 }, 'x');\n * // => 0\n */\n function sortedIndexBy(array, value, iteratee) {\n return baseSortedIndexBy(array, value, getIteratee(iteratee, 2));\n }\n\n /**\n * This method is like `_.indexOf` except that it performs a binary\n * search on a sorted `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.sortedIndexOf([4, 5, 5, 5, 6], 5);\n * // => 1\n */\n function sortedIndexOf(array, value) {\n var length = array == null ? 0 : array.length;\n if (length) {\n var index = baseSortedIndex(array, value);\n if (index < length && eq(array[index], value)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * This method is like `_.sortedIndex` except that it returns the highest\n * index at which `value` should be inserted into `array` in order to\n * maintain its sort order.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * _.sortedLastIndex([4, 5, 5, 5, 6], 5);\n * // => 4\n */\n function sortedLastIndex(array, value) {\n return baseSortedIndex(array, value, true);\n }\n\n /**\n * This method is like `_.sortedLastIndex` except that it accepts `iteratee`\n * which is invoked for `value` and each element of `array` to compute their\n * sort ranking. The iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * var objects = [{ 'x': 4 }, { 'x': 5 }];\n *\n * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });\n * // => 1\n *\n * // The `_.property` iteratee shorthand.\n * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');\n * // => 1\n */\n function sortedLastIndexBy(array, value, iteratee) {\n return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true);\n }\n\n /**\n * This method is like `_.lastIndexOf` except that it performs a binary\n * search on a sorted `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);\n * // => 3\n */\n function sortedLastIndexOf(array, value) {\n var length = array == null ? 0 : array.length;\n if (length) {\n var index = baseSortedIndex(array, value, true) - 1;\n if (eq(array[index], value)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * This method is like `_.uniq` except that it's designed and optimized\n * for sorted arrays.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.sortedUniq([1, 1, 2]);\n * // => [1, 2]\n */\n function sortedUniq(array) {\n return (array && array.length)\n ? baseSortedUniq(array)\n : [];\n }\n\n /**\n * This method is like `_.uniqBy` except that it's designed and optimized\n * for sorted arrays.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);\n * // => [1.1, 2.3]\n */\n function sortedUniqBy(array, iteratee) {\n return (array && array.length)\n ? baseSortedUniq(array, getIteratee(iteratee, 2))\n : [];\n }\n\n /**\n * Gets all but the first element of `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.tail([1, 2, 3]);\n * // => [2, 3]\n */\n function tail(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseSlice(array, 1, length) : [];\n }\n\n /**\n * Creates a slice of `array` with `n` elements taken from the beginning.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to take.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.take([1, 2, 3]);\n * // => [1]\n *\n * _.take([1, 2, 3], 2);\n * // => [1, 2]\n *\n * _.take([1, 2, 3], 5);\n * // => [1, 2, 3]\n *\n * _.take([1, 2, 3], 0);\n * // => []\n */\n function take(array, n, guard) {\n if (!(array && array.length)) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n return baseSlice(array, 0, n < 0 ? 0 : n);\n }\n\n /**\n * Creates a slice of `array` with `n` elements taken from the end.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to take.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.takeRight([1, 2, 3]);\n * // => [3]\n *\n * _.takeRight([1, 2, 3], 2);\n * // => [2, 3]\n *\n * _.takeRight([1, 2, 3], 5);\n * // => [1, 2, 3]\n *\n * _.takeRight([1, 2, 3], 0);\n * // => []\n */\n function takeRight(array, n, guard) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n n = length - n;\n return baseSlice(array, n < 0 ? 0 : n, length);\n }\n\n /**\n * Creates a slice of `array` with elements taken from the end. Elements are\n * taken until `predicate` returns falsey. The predicate is invoked with\n * three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': false }\n * ];\n *\n * _.takeRightWhile(users, function(o) { return !o.active; });\n * // => objects for ['fred', 'pebbles']\n *\n * // The `_.matches` iteratee shorthand.\n * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false });\n * // => objects for ['pebbles']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.takeRightWhile(users, ['active', false]);\n * // => objects for ['fred', 'pebbles']\n *\n * // The `_.property` iteratee shorthand.\n * _.takeRightWhile(users, 'active');\n * // => []\n */\n function takeRightWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3), false, true)\n : [];\n }\n\n /**\n * Creates a slice of `array` with elements taken from the beginning. Elements\n * are taken until `predicate` returns falsey. The predicate is invoked with\n * three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': false },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': true }\n * ];\n *\n * _.takeWhile(users, function(o) { return !o.active; });\n * // => objects for ['barney', 'fred']\n *\n * // The `_.matches` iteratee shorthand.\n * _.takeWhile(users, { 'user': 'barney', 'active': false });\n * // => objects for ['barney']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.takeWhile(users, ['active', false]);\n * // => objects for ['barney', 'fred']\n *\n * // The `_.property` iteratee shorthand.\n * _.takeWhile(users, 'active');\n * // => []\n */\n function takeWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3))\n : [];\n }\n\n /**\n * Creates an array of unique values, in order, from all given arrays using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @returns {Array} Returns the new array of combined values.\n * @example\n *\n * _.union([2], [1, 2]);\n * // => [2, 1]\n */\n var union = baseRest(function(arrays) {\n return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true));\n });\n\n /**\n * This method is like `_.union` except that it accepts `iteratee` which is\n * invoked for each element of each `arrays` to generate the criterion by\n * which uniqueness is computed. Result values are chosen from the first\n * array in which the value occurs. The iteratee is invoked with one argument:\n * (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of combined values.\n * @example\n *\n * _.unionBy([2.1], [1.2, 2.3], Math.floor);\n * // => [2.1, 1.2]\n *\n * // The `_.property` iteratee shorthand.\n * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 1 }, { 'x': 2 }]\n */\n var unionBy = baseRest(function(arrays) {\n var iteratee = last(arrays);\n if (isArrayLikeObject(iteratee)) {\n iteratee = undefined;\n }\n return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2));\n });\n\n /**\n * This method is like `_.union` except that it accepts `comparator` which\n * is invoked to compare elements of `arrays`. Result values are chosen from\n * the first array in which the value occurs. The comparator is invoked\n * with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of combined values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.unionWith(objects, others, _.isEqual);\n * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]\n */\n var unionWith = baseRest(function(arrays) {\n var comparator = last(arrays);\n comparator = typeof comparator == 'function' ? comparator : undefined;\n return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator);\n });\n\n /**\n * Creates a duplicate-free version of an array, using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons, in which only the first occurrence of each element\n * is kept. The order of result values is determined by the order they occur\n * in the array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.uniq([2, 1, 2]);\n * // => [2, 1]\n */\n function uniq(array) {\n return (array && array.length) ? baseUniq(array) : [];\n }\n\n /**\n * This method is like `_.uniq` except that it accepts `iteratee` which is\n * invoked for each element in `array` to generate the criterion by which\n * uniqueness is computed. The order of result values is determined by the\n * order they occur in the array. The iteratee is invoked with one argument:\n * (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.uniqBy([2.1, 1.2, 2.3], Math.floor);\n * // => [2.1, 1.2]\n *\n * // The `_.property` iteratee shorthand.\n * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 1 }, { 'x': 2 }]\n */\n function uniqBy(array, iteratee) {\n return (array && array.length) ? baseUniq(array, getIteratee(iteratee, 2)) : [];\n }\n\n /**\n * This method is like `_.uniq` except that it accepts `comparator` which\n * is invoked to compare elements of `array`. The order of result values is\n * determined by the order they occur in the array.The comparator is invoked\n * with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.uniqWith(objects, _.isEqual);\n * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]\n */\n function uniqWith(array, comparator) {\n comparator = typeof comparator == 'function' ? comparator : undefined;\n return (array && array.length) ? baseUniq(array, undefined, comparator) : [];\n }\n\n /**\n * This method is like `_.zip` except that it accepts an array of grouped\n * elements and creates an array regrouping the elements to their pre-zip\n * configuration.\n *\n * @static\n * @memberOf _\n * @since 1.2.0\n * @category Array\n * @param {Array} array The array of grouped elements to process.\n * @returns {Array} Returns the new array of regrouped elements.\n * @example\n *\n * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]);\n * // => [['a', 1, true], ['b', 2, false]]\n *\n * _.unzip(zipped);\n * // => [['a', 'b'], [1, 2], [true, false]]\n */\n function unzip(array) {\n if (!(array && array.length)) {\n return [];\n }\n var length = 0;\n array = arrayFilter(array, function(group) {\n if (isArrayLikeObject(group)) {\n length = nativeMax(group.length, length);\n return true;\n }\n });\n return baseTimes(length, function(index) {\n return arrayMap(array, baseProperty(index));\n });\n }\n\n /**\n * This method is like `_.unzip` except that it accepts `iteratee` to specify\n * how regrouped values should be combined. The iteratee is invoked with the\n * elements of each group: (...group).\n *\n * @static\n * @memberOf _\n * @since 3.8.0\n * @category Array\n * @param {Array} array The array of grouped elements to process.\n * @param {Function} [iteratee=_.identity] The function to combine\n * regrouped values.\n * @returns {Array} Returns the new array of regrouped elements.\n * @example\n *\n * var zipped = _.zip([1, 2], [10, 20], [100, 200]);\n * // => [[1, 10, 100], [2, 20, 200]]\n *\n * _.unzipWith(zipped, _.add);\n * // => [3, 30, 300]\n */\n function unzipWith(array, iteratee) {\n if (!(array && array.length)) {\n return [];\n }\n var result = unzip(array);\n if (iteratee == null) {\n return result;\n }\n return arrayMap(result, function(group) {\n return apply(iteratee, undefined, group);\n });\n }\n\n /**\n * Creates an array excluding all given values using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * **Note:** Unlike `_.pull`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...*} [values] The values to exclude.\n * @returns {Array} Returns the new array of filtered values.\n * @see _.difference, _.xor\n * @example\n *\n * _.without([2, 1, 2, 3], 1, 2);\n * // => [3]\n */\n var without = baseRest(function(array, values) {\n return isArrayLikeObject(array)\n ? baseDifference(array, values)\n : [];\n });\n\n /**\n * Creates an array of unique values that is the\n * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)\n * of the given arrays. The order of result values is determined by the order\n * they occur in the arrays.\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @returns {Array} Returns the new array of filtered values.\n * @see _.difference, _.without\n * @example\n *\n * _.xor([2, 1], [2, 3]);\n * // => [1, 3]\n */\n var xor = baseRest(function(arrays) {\n return baseXor(arrayFilter(arrays, isArrayLikeObject));\n });\n\n /**\n * This method is like `_.xor` except that it accepts `iteratee` which is\n * invoked for each element of each `arrays` to generate the criterion by\n * which by which they're compared. The order of result values is determined\n * by the order they occur in the arrays. The iteratee is invoked with one\n * argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n * // => [1.2, 3.4]\n *\n * // The `_.property` iteratee shorthand.\n * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 2 }]\n */\n var xorBy = baseRest(function(arrays) {\n var iteratee = last(arrays);\n if (isArrayLikeObject(iteratee)) {\n iteratee = undefined;\n }\n return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2));\n });\n\n /**\n * This method is like `_.xor` except that it accepts `comparator` which is\n * invoked to compare elements of `arrays`. The order of result values is\n * determined by the order they occur in the arrays. The comparator is invoked\n * with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.xorWith(objects, others, _.isEqual);\n * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]\n */\n var xorWith = baseRest(function(arrays) {\n var comparator = last(arrays);\n comparator = typeof comparator == 'function' ? comparator : undefined;\n return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator);\n });\n\n /**\n * Creates an array of grouped elements, the first of which contains the\n * first elements of the given arrays, the second of which contains the\n * second elements of the given arrays, and so on.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {...Array} [arrays] The arrays to process.\n * @returns {Array} Returns the new array of grouped elements.\n * @example\n *\n * _.zip(['a', 'b'], [1, 2], [true, false]);\n * // => [['a', 1, true], ['b', 2, false]]\n */\n var zip = baseRest(unzip);\n\n /**\n * This method is like `_.fromPairs` except that it accepts two arrays,\n * one of property identifiers and one of corresponding values.\n *\n * @static\n * @memberOf _\n * @since 0.4.0\n * @category Array\n * @param {Array} [props=[]] The property identifiers.\n * @param {Array} [values=[]] The property values.\n * @returns {Object} Returns the new object.\n * @example\n *\n * _.zipObject(['a', 'b'], [1, 2]);\n * // => { 'a': 1, 'b': 2 }\n */\n function zipObject(props, values) {\n return baseZipObject(props || [], values || [], assignValue);\n }\n\n /**\n * This method is like `_.zipObject` except that it supports property paths.\n *\n * @static\n * @memberOf _\n * @since 4.1.0\n * @category Array\n * @param {Array} [props=[]] The property identifiers.\n * @param {Array} [values=[]] The property values.\n * @returns {Object} Returns the new object.\n * @example\n *\n * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]);\n * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } }\n */\n function zipObjectDeep(props, values) {\n return baseZipObject(props || [], values || [], baseSet);\n }\n\n /**\n * This method is like `_.zip` except that it accepts `iteratee` to specify\n * how grouped values should be combined. The iteratee is invoked with the\n * elements of each group: (...group).\n *\n * @static\n * @memberOf _\n * @since 3.8.0\n * @category Array\n * @param {...Array} [arrays] The arrays to process.\n * @param {Function} [iteratee=_.identity] The function to combine\n * grouped values.\n * @returns {Array} Returns the new array of grouped elements.\n * @example\n *\n * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) {\n * return a + b + c;\n * });\n * // => [111, 222]\n */\n var zipWith = baseRest(function(arrays) {\n var length = arrays.length,\n iteratee = length > 1 ? arrays[length - 1] : undefined;\n\n iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined;\n return unzipWith(arrays, iteratee);\n });\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a `lodash` wrapper instance that wraps `value` with explicit method\n * chain sequences enabled. The result of such sequences must be unwrapped\n * with `_#value`.\n *\n * @static\n * @memberOf _\n * @since 1.3.0\n * @category Seq\n * @param {*} value The value to wrap.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36 },\n * { 'user': 'fred', 'age': 40 },\n * { 'user': 'pebbles', 'age': 1 }\n * ];\n *\n * var youngest = _\n * .chain(users)\n * .sortBy('age')\n * .map(function(o) {\n * return o.user + ' is ' + o.age;\n * })\n * .head()\n * .value();\n * // => 'pebbles is 1'\n */\n function chain(value) {\n var result = lodash(value);\n result.__chain__ = true;\n return result;\n }\n\n /**\n * This method invokes `interceptor` and returns `value`. The interceptor\n * is invoked with one argument; (value). The purpose of this method is to\n * \"tap into\" a method chain sequence in order to modify intermediate results.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Seq\n * @param {*} value The value to provide to `interceptor`.\n * @param {Function} interceptor The function to invoke.\n * @returns {*} Returns `value`.\n * @example\n *\n * _([1, 2, 3])\n * .tap(function(array) {\n * // Mutate input array.\n * array.pop();\n * })\n * .reverse()\n * .value();\n * // => [2, 1]\n */\n function tap(value, interceptor) {\n interceptor(value);\n return value;\n }\n\n /**\n * This method is like `_.tap` except that it returns the result of `interceptor`.\n * The purpose of this method is to \"pass thru\" values replacing intermediate\n * results in a method chain sequence.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Seq\n * @param {*} value The value to provide to `interceptor`.\n * @param {Function} interceptor The function to invoke.\n * @returns {*} Returns the result of `interceptor`.\n * @example\n *\n * _(' abc ')\n * .chain()\n * .trim()\n * .thru(function(value) {\n * return [value];\n * })\n * .value();\n * // => ['abc']\n */\n function thru(value, interceptor) {\n return interceptor(value);\n }\n\n /**\n * This method is the wrapper version of `_.at`.\n *\n * @name at\n * @memberOf _\n * @since 1.0.0\n * @category Seq\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n *\n * _(object).at(['a[0].b.c', 'a[1]']).value();\n * // => [3, 4]\n */\n var wrapperAt = flatRest(function(paths) {\n var length = paths.length,\n start = length ? paths[0] : 0,\n value = this.__wrapped__,\n interceptor = function(object) { return baseAt(object, paths); };\n\n if (length > 1 || this.__actions__.length ||\n !(value instanceof LazyWrapper) || !isIndex(start)) {\n return this.thru(interceptor);\n }\n value = value.slice(start, +start + (length ? 1 : 0));\n value.__actions__.push({\n 'func': thru,\n 'args': [interceptor],\n 'thisArg': undefined\n });\n return new LodashWrapper(value, this.__chain__).thru(function(array) {\n if (length && !array.length) {\n array.push(undefined);\n }\n return array;\n });\n });\n\n /**\n * Creates a `lodash` wrapper instance with explicit method chain sequences enabled.\n *\n * @name chain\n * @memberOf _\n * @since 0.1.0\n * @category Seq\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36 },\n * { 'user': 'fred', 'age': 40 }\n * ];\n *\n * // A sequence without explicit chaining.\n * _(users).head();\n * // => { 'user': 'barney', 'age': 36 }\n *\n * // A sequence with explicit chaining.\n * _(users)\n * .chain()\n * .head()\n * .pick('user')\n * .value();\n * // => { 'user': 'barney' }\n */\n function wrapperChain() {\n return chain(this);\n }\n\n /**\n * Executes the chain sequence and returns the wrapped result.\n *\n * @name commit\n * @memberOf _\n * @since 3.2.0\n * @category Seq\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var array = [1, 2];\n * var wrapped = _(array).push(3);\n *\n * console.log(array);\n * // => [1, 2]\n *\n * wrapped = wrapped.commit();\n * console.log(array);\n * // => [1, 2, 3]\n *\n * wrapped.last();\n * // => 3\n *\n * console.log(array);\n * // => [1, 2, 3]\n */\n function wrapperCommit() {\n return new LodashWrapper(this.value(), this.__chain__);\n }\n\n /**\n * Gets the next value on a wrapped object following the\n * [iterator protocol](https://mdn.io/iteration_protocols#iterator).\n *\n * @name next\n * @memberOf _\n * @since 4.0.0\n * @category Seq\n * @returns {Object} Returns the next iterator value.\n * @example\n *\n * var wrapped = _([1, 2]);\n *\n * wrapped.next();\n * // => { 'done': false, 'value': 1 }\n *\n * wrapped.next();\n * // => { 'done': false, 'value': 2 }\n *\n * wrapped.next();\n * // => { 'done': true, 'value': undefined }\n */\n function wrapperNext() {\n if (this.__values__ === undefined) {\n this.__values__ = toArray(this.value());\n }\n var done = this.__index__ >= this.__values__.length,\n value = done ? undefined : this.__values__[this.__index__++];\n\n return { 'done': done, 'value': value };\n }\n\n /**\n * Enables the wrapper to be iterable.\n *\n * @name Symbol.iterator\n * @memberOf _\n * @since 4.0.0\n * @category Seq\n * @returns {Object} Returns the wrapper object.\n * @example\n *\n * var wrapped = _([1, 2]);\n *\n * wrapped[Symbol.iterator]() === wrapped;\n * // => true\n *\n * Array.from(wrapped);\n * // => [1, 2]\n */\n function wrapperToIterator() {\n return this;\n }\n\n /**\n * Creates a clone of the chain sequence planting `value` as the wrapped value.\n *\n * @name plant\n * @memberOf _\n * @since 3.2.0\n * @category Seq\n * @param {*} value The value to plant.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * var wrapped = _([1, 2]).map(square);\n * var other = wrapped.plant([3, 4]);\n *\n * other.value();\n * // => [9, 16]\n *\n * wrapped.value();\n * // => [1, 4]\n */\n function wrapperPlant(value) {\n var result,\n parent = this;\n\n while (parent instanceof baseLodash) {\n var clone = wrapperClone(parent);\n clone.__index__ = 0;\n clone.__values__ = undefined;\n if (result) {\n previous.__wrapped__ = clone;\n } else {\n result = clone;\n }\n var previous = clone;\n parent = parent.__wrapped__;\n }\n previous.__wrapped__ = value;\n return result;\n }\n\n /**\n * This method is the wrapper version of `_.reverse`.\n *\n * **Note:** This method mutates the wrapped array.\n *\n * @name reverse\n * @memberOf _\n * @since 0.1.0\n * @category Seq\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var array = [1, 2, 3];\n *\n * _(array).reverse().value()\n * // => [3, 2, 1]\n *\n * console.log(array);\n * // => [3, 2, 1]\n */\n function wrapperReverse() {\n var value = this.__wrapped__;\n if (value instanceof LazyWrapper) {\n var wrapped = value;\n if (this.__actions__.length) {\n wrapped = new LazyWrapper(this);\n }\n wrapped = wrapped.reverse();\n wrapped.__actions__.push({\n 'func': thru,\n 'args': [reverse],\n 'thisArg': undefined\n });\n return new LodashWrapper(wrapped, this.__chain__);\n }\n return this.thru(reverse);\n }\n\n /**\n * Executes the chain sequence to resolve the unwrapped value.\n *\n * @name value\n * @memberOf _\n * @since 0.1.0\n * @alias toJSON, valueOf\n * @category Seq\n * @returns {*} Returns the resolved unwrapped value.\n * @example\n *\n * _([1, 2, 3]).value();\n * // => [1, 2, 3]\n */\n function wrapperValue() {\n return baseWrapperValue(this.__wrapped__, this.__actions__);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an object composed of keys generated from the results of running\n * each element of `collection` thru `iteratee`. The corresponding value of\n * each key is the number of times the key was returned by `iteratee`. The\n * iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n * @returns {Object} Returns the composed aggregate object.\n * @example\n *\n * _.countBy([6.1, 4.2, 6.3], Math.floor);\n * // => { '4': 1, '6': 2 }\n *\n * // The `_.property` iteratee shorthand.\n * _.countBy(['one', 'two', 'three'], 'length');\n * // => { '3': 2, '5': 1 }\n */\n var countBy = createAggregator(function(result, value, key) {\n if (hasOwnProperty.call(result, key)) {\n ++result[key];\n } else {\n baseAssignValue(result, key, 1);\n }\n });\n\n /**\n * Checks if `predicate` returns truthy for **all** elements of `collection`.\n * Iteration is stopped once `predicate` returns falsey. The predicate is\n * invoked with three arguments: (value, index|key, collection).\n *\n * **Note:** This method returns `true` for\n * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because\n * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of\n * elements of empty collections.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {boolean} Returns `true` if all elements pass the predicate check,\n * else `false`.\n * @example\n *\n * _.every([true, 1, null, 'yes'], Boolean);\n * // => false\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': false },\n * { 'user': 'fred', 'age': 40, 'active': false }\n * ];\n *\n * // The `_.matches` iteratee shorthand.\n * _.every(users, { 'user': 'barney', 'active': false });\n * // => false\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.every(users, ['active', false]);\n * // => true\n *\n * // The `_.property` iteratee shorthand.\n * _.every(users, 'active');\n * // => false\n */\n function every(collection, predicate, guard) {\n var func = isArray(collection) ? arrayEvery : baseEvery;\n if (guard && isIterateeCall(collection, predicate, guard)) {\n predicate = undefined;\n }\n return func(collection, getIteratee(predicate, 3));\n }\n\n /**\n * Iterates over elements of `collection`, returning an array of all elements\n * `predicate` returns truthy for. The predicate is invoked with three\n * arguments: (value, index|key, collection).\n *\n * **Note:** Unlike `_.remove`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n * @see _.reject\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': true },\n * { 'user': 'fred', 'age': 40, 'active': false }\n * ];\n *\n * _.filter(users, function(o) { return !o.active; });\n * // => objects for ['fred']\n *\n * // The `_.matches` iteratee shorthand.\n * _.filter(users, { 'age': 36, 'active': true });\n * // => objects for ['barney']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.filter(users, ['active', false]);\n * // => objects for ['fred']\n *\n * // The `_.property` iteratee shorthand.\n * _.filter(users, 'active');\n * // => objects for ['barney']\n *\n * // Combining several predicates using `_.overEvery` or `_.overSome`.\n * _.filter(users, _.overSome([{ 'age': 36 }, ['age', 40]]));\n * // => objects for ['fred', 'barney']\n */\n function filter(collection, predicate) {\n var func = isArray(collection) ? arrayFilter : baseFilter;\n return func(collection, getIteratee(predicate, 3));\n }\n\n /**\n * Iterates over elements of `collection`, returning the first element\n * `predicate` returns truthy for. The predicate is invoked with three\n * arguments: (value, index|key, collection).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=0] The index to search from.\n * @returns {*} Returns the matched element, else `undefined`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': true },\n * { 'user': 'fred', 'age': 40, 'active': false },\n * { 'user': 'pebbles', 'age': 1, 'active': true }\n * ];\n *\n * _.find(users, function(o) { return o.age < 40; });\n * // => object for 'barney'\n *\n * // The `_.matches` iteratee shorthand.\n * _.find(users, { 'age': 1, 'active': true });\n * // => object for 'pebbles'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.find(users, ['active', false]);\n * // => object for 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.find(users, 'active');\n * // => object for 'barney'\n */\n var find = createFind(findIndex);\n\n /**\n * This method is like `_.find` except that it iterates over elements of\n * `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=collection.length-1] The index to search from.\n * @returns {*} Returns the matched element, else `undefined`.\n * @example\n *\n * _.findLast([1, 2, 3, 4], function(n) {\n * return n % 2 == 1;\n * });\n * // => 3\n */\n var findLast = createFind(findLastIndex);\n\n /**\n * Creates a flattened array of values by running each element in `collection`\n * thru `iteratee` and flattening the mapped results. The iteratee is invoked\n * with three arguments: (value, index|key, collection).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * function duplicate(n) {\n * return [n, n];\n * }\n *\n * _.flatMap([1, 2], duplicate);\n * // => [1, 1, 2, 2]\n */\n function flatMap(collection, iteratee) {\n return baseFlatten(map(collection, iteratee), 1);\n }\n\n /**\n * This method is like `_.flatMap` except that it recursively flattens the\n * mapped results.\n *\n * @static\n * @memberOf _\n * @since 4.7.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * function duplicate(n) {\n * return [[[n, n]]];\n * }\n *\n * _.flatMapDeep([1, 2], duplicate);\n * // => [1, 1, 2, 2]\n */\n function flatMapDeep(collection, iteratee) {\n return baseFlatten(map(collection, iteratee), INFINITY);\n }\n\n /**\n * This method is like `_.flatMap` except that it recursively flattens the\n * mapped results up to `depth` times.\n *\n * @static\n * @memberOf _\n * @since 4.7.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {number} [depth=1] The maximum recursion depth.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * function duplicate(n) {\n * return [[[n, n]]];\n * }\n *\n * _.flatMapDepth([1, 2], duplicate, 2);\n * // => [[1, 1], [2, 2]]\n */\n function flatMapDepth(collection, iteratee, depth) {\n depth = depth === undefined ? 1 : toInteger(depth);\n return baseFlatten(map(collection, iteratee), depth);\n }\n\n /**\n * Iterates over elements of `collection` and invokes `iteratee` for each element.\n * The iteratee is invoked with three arguments: (value, index|key, collection).\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * **Note:** As with other \"Collections\" methods, objects with a \"length\"\n * property are iterated like arrays. To avoid this behavior use `_.forIn`\n * or `_.forOwn` for object iteration.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @alias each\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n * @see _.forEachRight\n * @example\n *\n * _.forEach([1, 2], function(value) {\n * console.log(value);\n * });\n * // => Logs `1` then `2`.\n *\n * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a' then 'b' (iteration order is not guaranteed).\n */\n function forEach(collection, iteratee) {\n var func = isArray(collection) ? arrayEach : baseEach;\n return func(collection, getIteratee(iteratee, 3));\n }\n\n /**\n * This method is like `_.forEach` except that it iterates over elements of\n * `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @alias eachRight\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n * @see _.forEach\n * @example\n *\n * _.forEachRight([1, 2], function(value) {\n * console.log(value);\n * });\n * // => Logs `2` then `1`.\n */\n function forEachRight(collection, iteratee) {\n var func = isArray(collection) ? arrayEachRight : baseEachRight;\n return func(collection, getIteratee(iteratee, 3));\n }\n\n /**\n * Creates an object composed of keys generated from the results of running\n * each element of `collection` thru `iteratee`. The order of grouped values\n * is determined by the order they occur in `collection`. The corresponding\n * value of each key is an array of elements responsible for generating the\n * key. The iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n * @returns {Object} Returns the composed aggregate object.\n * @example\n *\n * _.groupBy([6.1, 4.2, 6.3], Math.floor);\n * // => { '4': [4.2], '6': [6.1, 6.3] }\n *\n * // The `_.property` iteratee shorthand.\n * _.groupBy(['one', 'two', 'three'], 'length');\n * // => { '3': ['one', 'two'], '5': ['three'] }\n */\n var groupBy = createAggregator(function(result, value, key) {\n if (hasOwnProperty.call(result, key)) {\n result[key].push(value);\n } else {\n baseAssignValue(result, key, [value]);\n }\n });\n\n /**\n * Checks if `value` is in `collection`. If `collection` is a string, it's\n * checked for a substring of `value`, otherwise\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * is used for equality comparisons. If `fromIndex` is negative, it's used as\n * the offset from the end of `collection`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object|string} collection The collection to inspect.\n * @param {*} value The value to search for.\n * @param {number} [fromIndex=0] The index to search from.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.\n * @returns {boolean} Returns `true` if `value` is found, else `false`.\n * @example\n *\n * _.includes([1, 2, 3], 1);\n * // => true\n *\n * _.includes([1, 2, 3], 1, 2);\n * // => false\n *\n * _.includes({ 'a': 1, 'b': 2 }, 1);\n * // => true\n *\n * _.includes('abcd', 'bc');\n * // => true\n */\n function includes(collection, value, fromIndex, guard) {\n collection = isArrayLike(collection) ? collection : values(collection);\n fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0;\n\n var length = collection.length;\n if (fromIndex < 0) {\n fromIndex = nativeMax(length + fromIndex, 0);\n }\n return isString(collection)\n ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1)\n : (!!length && baseIndexOf(collection, value, fromIndex) > -1);\n }\n\n /**\n * Invokes the method at `path` of each element in `collection`, returning\n * an array of the results of each invoked method. Any additional arguments\n * are provided to each invoked method. If `path` is a function, it's invoked\n * for, and `this` bound to, each element in `collection`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Array|Function|string} path The path of the method to invoke or\n * the function invoked per iteration.\n * @param {...*} [args] The arguments to invoke each method with.\n * @returns {Array} Returns the array of results.\n * @example\n *\n * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort');\n * // => [[1, 5, 7], [1, 2, 3]]\n *\n * _.invokeMap([123, 456], String.prototype.split, '');\n * // => [['1', '2', '3'], ['4', '5', '6']]\n */\n var invokeMap = baseRest(function(collection, path, args) {\n var index = -1,\n isFunc = typeof path == 'function',\n result = isArrayLike(collection) ? Array(collection.length) : [];\n\n baseEach(collection, function(value) {\n result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args);\n });\n return result;\n });\n\n /**\n * Creates an object composed of keys generated from the results of running\n * each element of `collection` thru `iteratee`. The corresponding value of\n * each key is the last element responsible for generating the key. The\n * iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n * @returns {Object} Returns the composed aggregate object.\n * @example\n *\n * var array = [\n * { 'dir': 'left', 'code': 97 },\n * { 'dir': 'right', 'code': 100 }\n * ];\n *\n * _.keyBy(array, function(o) {\n * return String.fromCharCode(o.code);\n * });\n * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }\n *\n * _.keyBy(array, 'dir');\n * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }\n */\n var keyBy = createAggregator(function(result, value, key) {\n baseAssignValue(result, key, value);\n });\n\n /**\n * Creates an array of values by running each element in `collection` thru\n * `iteratee`. The iteratee is invoked with three arguments:\n * (value, index|key, collection).\n *\n * Many lodash methods are guarded to work as iteratees for methods like\n * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.\n *\n * The guarded methods are:\n * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,\n * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,\n * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,\n * `template`, `trim`, `trimEnd`, `trimStart`, and `words`\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n * @example\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * _.map([4, 8], square);\n * // => [16, 64]\n *\n * _.map({ 'a': 4, 'b': 8 }, square);\n * // => [16, 64] (iteration order is not guaranteed)\n *\n * var users = [\n * { 'user': 'barney' },\n * { 'user': 'fred' }\n * ];\n *\n * // The `_.property` iteratee shorthand.\n * _.map(users, 'user');\n * // => ['barney', 'fred']\n */\n function map(collection, iteratee) {\n var func = isArray(collection) ? arrayMap : baseMap;\n return func(collection, getIteratee(iteratee, 3));\n }\n\n /**\n * This method is like `_.sortBy` except that it allows specifying the sort\n * orders of the iteratees to sort by. If `orders` is unspecified, all values\n * are sorted in ascending order. Otherwise, specify an order of \"desc\" for\n * descending or \"asc\" for ascending sort order of corresponding values.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]]\n * The iteratees to sort by.\n * @param {string[]} [orders] The sort orders of `iteratees`.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.\n * @returns {Array} Returns the new sorted array.\n * @example\n *\n * var users = [\n * { 'user': 'fred', 'age': 48 },\n * { 'user': 'barney', 'age': 34 },\n * { 'user': 'fred', 'age': 40 },\n * { 'user': 'barney', 'age': 36 }\n * ];\n *\n * // Sort by `user` in ascending order and by `age` in descending order.\n * _.orderBy(users, ['user', 'age'], ['asc', 'desc']);\n * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]\n */\n function orderBy(collection, iteratees, orders, guard) {\n if (collection == null) {\n return [];\n }\n if (!isArray(iteratees)) {\n iteratees = iteratees == null ? [] : [iteratees];\n }\n orders = guard ? undefined : orders;\n if (!isArray(orders)) {\n orders = orders == null ? [] : [orders];\n }\n return baseOrderBy(collection, iteratees, orders);\n }\n\n /**\n * Creates an array of elements split into two groups, the first of which\n * contains elements `predicate` returns truthy for, the second of which\n * contains elements `predicate` returns falsey for. The predicate is\n * invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the array of grouped elements.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': false },\n * { 'user': 'fred', 'age': 40, 'active': true },\n * { 'user': 'pebbles', 'age': 1, 'active': false }\n * ];\n *\n * _.partition(users, function(o) { return o.active; });\n * // => objects for [['fred'], ['barney', 'pebbles']]\n *\n * // The `_.matches` iteratee shorthand.\n * _.partition(users, { 'age': 1, 'active': false });\n * // => objects for [['pebbles'], ['barney', 'fred']]\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.partition(users, ['active', false]);\n * // => objects for [['barney', 'pebbles'], ['fred']]\n *\n * // The `_.property` iteratee shorthand.\n * _.partition(users, 'active');\n * // => objects for [['fred'], ['barney', 'pebbles']]\n */\n var partition = createAggregator(function(result, value, key) {\n result[key ? 0 : 1].push(value);\n }, function() { return [[], []]; });\n\n /**\n * Reduces `collection` to a value which is the accumulated result of running\n * each element in `collection` thru `iteratee`, where each successive\n * invocation is supplied the return value of the previous. If `accumulator`\n * is not given, the first element of `collection` is used as the initial\n * value. The iteratee is invoked with four arguments:\n * (accumulator, value, index|key, collection).\n *\n * Many lodash methods are guarded to work as iteratees for methods like\n * `_.reduce`, `_.reduceRight`, and `_.transform`.\n *\n * The guarded methods are:\n * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,\n * and `sortBy`\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @returns {*} Returns the accumulated value.\n * @see _.reduceRight\n * @example\n *\n * _.reduce([1, 2], function(sum, n) {\n * return sum + n;\n * }, 0);\n * // => 3\n *\n * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {\n * (result[value] || (result[value] = [])).push(key);\n * return result;\n * }, {});\n * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)\n */\n function reduce(collection, iteratee, accumulator) {\n var func = isArray(collection) ? arrayReduce : baseReduce,\n initAccum = arguments.length < 3;\n\n return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach);\n }\n\n /**\n * This method is like `_.reduce` except that it iterates over elements of\n * `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @returns {*} Returns the accumulated value.\n * @see _.reduce\n * @example\n *\n * var array = [[0, 1], [2, 3], [4, 5]];\n *\n * _.reduceRight(array, function(flattened, other) {\n * return flattened.concat(other);\n * }, []);\n * // => [4, 5, 2, 3, 0, 1]\n */\n function reduceRight(collection, iteratee, accumulator) {\n var func = isArray(collection) ? arrayReduceRight : baseReduce,\n initAccum = arguments.length < 3;\n\n return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight);\n }\n\n /**\n * The opposite of `_.filter`; this method returns the elements of `collection`\n * that `predicate` does **not** return truthy for.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n * @see _.filter\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': false },\n * { 'user': 'fred', 'age': 40, 'active': true }\n * ];\n *\n * _.reject(users, function(o) { return !o.active; });\n * // => objects for ['fred']\n *\n * // The `_.matches` iteratee shorthand.\n * _.reject(users, { 'age': 40, 'active': true });\n * // => objects for ['barney']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.reject(users, ['active', false]);\n * // => objects for ['fred']\n *\n * // The `_.property` iteratee shorthand.\n * _.reject(users, 'active');\n * // => objects for ['barney']\n */\n function reject(collection, predicate) {\n var func = isArray(collection) ? arrayFilter : baseFilter;\n return func(collection, negate(getIteratee(predicate, 3)));\n }\n\n /**\n * Gets a random element from `collection`.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to sample.\n * @returns {*} Returns the random element.\n * @example\n *\n * _.sample([1, 2, 3, 4]);\n * // => 2\n */\n function sample(collection) {\n var func = isArray(collection) ? arraySample : baseSample;\n return func(collection);\n }\n\n /**\n * Gets `n` random elements at unique keys from `collection` up to the\n * size of `collection`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to sample.\n * @param {number} [n=1] The number of elements to sample.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the random elements.\n * @example\n *\n * _.sampleSize([1, 2, 3], 2);\n * // => [3, 1]\n *\n * _.sampleSize([1, 2, 3], 4);\n * // => [2, 3, 1]\n */\n function sampleSize(collection, n, guard) {\n if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) {\n n = 1;\n } else {\n n = toInteger(n);\n }\n var func = isArray(collection) ? arraySampleSize : baseSampleSize;\n return func(collection, n);\n }\n\n /**\n * Creates an array of shuffled values, using a version of the\n * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to shuffle.\n * @returns {Array} Returns the new shuffled array.\n * @example\n *\n * _.shuffle([1, 2, 3, 4]);\n * // => [4, 1, 3, 2]\n */\n function shuffle(collection) {\n var func = isArray(collection) ? arrayShuffle : baseShuffle;\n return func(collection);\n }\n\n /**\n * Gets the size of `collection` by returning its length for array-like\n * values or the number of own enumerable string keyed properties for objects.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object|string} collection The collection to inspect.\n * @returns {number} Returns the collection size.\n * @example\n *\n * _.size([1, 2, 3]);\n * // => 3\n *\n * _.size({ 'a': 1, 'b': 2 });\n * // => 2\n *\n * _.size('pebbles');\n * // => 7\n */\n function size(collection) {\n if (collection == null) {\n return 0;\n }\n if (isArrayLike(collection)) {\n return isString(collection) ? stringSize(collection) : collection.length;\n }\n var tag = getTag(collection);\n if (tag == mapTag || tag == setTag) {\n return collection.size;\n }\n return baseKeys(collection).length;\n }\n\n /**\n * Checks if `predicate` returns truthy for **any** element of `collection`.\n * Iteration is stopped once `predicate` returns truthy. The predicate is\n * invoked with three arguments: (value, index|key, collection).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n * @example\n *\n * _.some([null, 0, 'yes', false], Boolean);\n * // => true\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false }\n * ];\n *\n * // The `_.matches` iteratee shorthand.\n * _.some(users, { 'user': 'barney', 'active': false });\n * // => false\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.some(users, ['active', false]);\n * // => true\n *\n * // The `_.property` iteratee shorthand.\n * _.some(users, 'active');\n * // => true\n */\n function some(collection, predicate, guard) {\n var func = isArray(collection) ? arraySome : baseSome;\n if (guard && isIterateeCall(collection, predicate, guard)) {\n predicate = undefined;\n }\n return func(collection, getIteratee(predicate, 3));\n }\n\n /**\n * Creates an array of elements, sorted in ascending order by the results of\n * running each element in a collection thru each iteratee. This method\n * performs a stable sort, that is, it preserves the original sort order of\n * equal elements. The iteratees are invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {...(Function|Function[])} [iteratees=[_.identity]]\n * The iteratees to sort by.\n * @returns {Array} Returns the new sorted array.\n * @example\n *\n * var users = [\n * { 'user': 'fred', 'age': 48 },\n * { 'user': 'barney', 'age': 36 },\n * { 'user': 'fred', 'age': 30 },\n * { 'user': 'barney', 'age': 34 }\n * ];\n *\n * _.sortBy(users, [function(o) { return o.user; }]);\n * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 30]]\n *\n * _.sortBy(users, ['user', 'age']);\n * // => objects for [['barney', 34], ['barney', 36], ['fred', 30], ['fred', 48]]\n */\n var sortBy = baseRest(function(collection, iteratees) {\n if (collection == null) {\n return [];\n }\n var length = iteratees.length;\n if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) {\n iteratees = [];\n } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {\n iteratees = [iteratees[0]];\n }\n return baseOrderBy(collection, baseFlatten(iteratees, 1), []);\n });\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Gets the timestamp of the number of milliseconds that have elapsed since\n * the Unix epoch (1 January 1970 00:00:00 UTC).\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Date\n * @returns {number} Returns the timestamp.\n * @example\n *\n * _.defer(function(stamp) {\n * console.log(_.now() - stamp);\n * }, _.now());\n * // => Logs the number of milliseconds it took for the deferred invocation.\n */\n var now = ctxNow || function() {\n return root.Date.now();\n };\n\n /*------------------------------------------------------------------------*/\n\n /**\n * The opposite of `_.before`; this method creates a function that invokes\n * `func` once it's called `n` or more times.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {number} n The number of calls before `func` is invoked.\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new restricted function.\n * @example\n *\n * var saves = ['profile', 'settings'];\n *\n * var done = _.after(saves.length, function() {\n * console.log('done saving!');\n * });\n *\n * _.forEach(saves, function(type) {\n * asyncSave({ 'type': type, 'complete': done });\n * });\n * // => Logs 'done saving!' after the two async saves have completed.\n */\n function after(n, func) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n n = toInteger(n);\n return function() {\n if (--n < 1) {\n return func.apply(this, arguments);\n }\n };\n }\n\n /**\n * Creates a function that invokes `func`, with up to `n` arguments,\n * ignoring any additional arguments.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} func The function to cap arguments for.\n * @param {number} [n=func.length] The arity cap.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the new capped function.\n * @example\n *\n * _.map(['6', '8', '10'], _.ary(parseInt, 1));\n * // => [6, 8, 10]\n */\n function ary(func, n, guard) {\n n = guard ? undefined : n;\n n = (func && n == null) ? func.length : n;\n return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n);\n }\n\n /**\n * Creates a function that invokes `func`, with the `this` binding and arguments\n * of the created function, while it's called less than `n` times. Subsequent\n * calls to the created function return the result of the last `func` invocation.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {number} n The number of calls at which `func` is no longer invoked.\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new restricted function.\n * @example\n *\n * jQuery(element).on('click', _.before(5, addContactToList));\n * // => Allows adding up to 4 contacts to the list.\n */\n function before(n, func) {\n var result;\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n n = toInteger(n);\n return function() {\n if (--n > 0) {\n result = func.apply(this, arguments);\n }\n if (n <= 1) {\n func = undefined;\n }\n return result;\n };\n }\n\n /**\n * Creates a function that invokes `func` with the `this` binding of `thisArg`\n * and `partials` prepended to the arguments it receives.\n *\n * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,\n * may be used as a placeholder for partially applied arguments.\n *\n * **Note:** Unlike native `Function#bind`, this method doesn't set the \"length\"\n * property of bound functions.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to bind.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new bound function.\n * @example\n *\n * function greet(greeting, punctuation) {\n * return greeting + ' ' + this.user + punctuation;\n * }\n *\n * var object = { 'user': 'fred' };\n *\n * var bound = _.bind(greet, object, 'hi');\n * bound('!');\n * // => 'hi fred!'\n *\n * // Bound with placeholders.\n * var bound = _.bind(greet, object, _, '!');\n * bound('hi');\n * // => 'hi fred!'\n */\n var bind = baseRest(function(func, thisArg, partials) {\n var bitmask = WRAP_BIND_FLAG;\n if (partials.length) {\n var holders = replaceHolders(partials, getHolder(bind));\n bitmask |= WRAP_PARTIAL_FLAG;\n }\n return createWrap(func, bitmask, thisArg, partials, holders);\n });\n\n /**\n * Creates a function that invokes the method at `object[key]` with `partials`\n * prepended to the arguments it receives.\n *\n * This method differs from `_.bind` by allowing bound functions to reference\n * methods that may be redefined or don't yet exist. See\n * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)\n * for more details.\n *\n * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for partially applied arguments.\n *\n * @static\n * @memberOf _\n * @since 0.10.0\n * @category Function\n * @param {Object} object The object to invoke the method on.\n * @param {string} key The key of the method.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new bound function.\n * @example\n *\n * var object = {\n * 'user': 'fred',\n * 'greet': function(greeting, punctuation) {\n * return greeting + ' ' + this.user + punctuation;\n * }\n * };\n *\n * var bound = _.bindKey(object, 'greet', 'hi');\n * bound('!');\n * // => 'hi fred!'\n *\n * object.greet = function(greeting, punctuation) {\n * return greeting + 'ya ' + this.user + punctuation;\n * };\n *\n * bound('!');\n * // => 'hiya fred!'\n *\n * // Bound with placeholders.\n * var bound = _.bindKey(object, 'greet', _, '!');\n * bound('hi');\n * // => 'hiya fred!'\n */\n var bindKey = baseRest(function(object, key, partials) {\n var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG;\n if (partials.length) {\n var holders = replaceHolders(partials, getHolder(bindKey));\n bitmask |= WRAP_PARTIAL_FLAG;\n }\n return createWrap(key, bitmask, object, partials, holders);\n });\n\n /**\n * Creates a function that accepts arguments of `func` and either invokes\n * `func` returning its result, if at least `arity` number of arguments have\n * been provided, or returns a function that accepts the remaining `func`\n * arguments, and so on. The arity of `func` may be specified if `func.length`\n * is not sufficient.\n *\n * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,\n * may be used as a placeholder for provided arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of curried functions.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Function\n * @param {Function} func The function to curry.\n * @param {number} [arity=func.length] The arity of `func`.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the new curried function.\n * @example\n *\n * var abc = function(a, b, c) {\n * return [a, b, c];\n * };\n *\n * var curried = _.curry(abc);\n *\n * curried(1)(2)(3);\n * // => [1, 2, 3]\n *\n * curried(1, 2)(3);\n * // => [1, 2, 3]\n *\n * curried(1, 2, 3);\n * // => [1, 2, 3]\n *\n * // Curried with placeholders.\n * curried(1)(_, 3)(2);\n * // => [1, 2, 3]\n */\n function curry(func, arity, guard) {\n arity = guard ? undefined : arity;\n var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity);\n result.placeholder = curry.placeholder;\n return result;\n }\n\n /**\n * This method is like `_.curry` except that arguments are applied to `func`\n * in the manner of `_.partialRight` instead of `_.partial`.\n *\n * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for provided arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of curried functions.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} func The function to curry.\n * @param {number} [arity=func.length] The arity of `func`.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the new curried function.\n * @example\n *\n * var abc = function(a, b, c) {\n * return [a, b, c];\n * };\n *\n * var curried = _.curryRight(abc);\n *\n * curried(3)(2)(1);\n * // => [1, 2, 3]\n *\n * curried(2, 3)(1);\n * // => [1, 2, 3]\n *\n * curried(1, 2, 3);\n * // => [1, 2, 3]\n *\n * // Curried with placeholders.\n * curried(3)(1, _)(2);\n * // => [1, 2, 3]\n */\n function curryRight(func, arity, guard) {\n arity = guard ? undefined : arity;\n var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity);\n result.placeholder = curryRight.placeholder;\n return result;\n }\n\n /**\n * Creates a debounced function that delays invoking `func` until after `wait`\n * milliseconds have elapsed since the last time the debounced function was\n * invoked. The debounced function comes with a `cancel` method to cancel\n * delayed `func` invocations and a `flush` method to immediately invoke them.\n * Provide `options` to indicate whether `func` should be invoked on the\n * leading and/or trailing edge of the `wait` timeout. The `func` is invoked\n * with the last arguments provided to the debounced function. Subsequent\n * calls to the debounced function return the result of the last `func`\n * invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the debounced function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.debounce` and `_.throttle`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to debounce.\n * @param {number} [wait=0] The number of milliseconds to delay.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=false]\n * Specify invoking on the leading edge of the timeout.\n * @param {number} [options.maxWait]\n * The maximum time `func` is allowed to be delayed before it's invoked.\n * @param {boolean} [options.trailing=true]\n * Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new debounced function.\n * @example\n *\n * // Avoid costly calculations while the window size is in flux.\n * jQuery(window).on('resize', _.debounce(calculateLayout, 150));\n *\n * // Invoke `sendMail` when clicked, debouncing subsequent calls.\n * jQuery(element).on('click', _.debounce(sendMail, 300, {\n * 'leading': true,\n * 'trailing': false\n * }));\n *\n * // Ensure `batchLog` is invoked once after 1 second of debounced calls.\n * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });\n * var source = new EventSource('/stream');\n * jQuery(source).on('message', debounced);\n *\n * // Cancel the trailing debounced invocation.\n * jQuery(window).on('popstate', debounced.cancel);\n */\n function debounce(func, wait, options) {\n var lastArgs,\n lastThis,\n maxWait,\n result,\n timerId,\n lastCallTime,\n lastInvokeTime = 0,\n leading = false,\n maxing = false,\n trailing = true;\n\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n wait = toNumber(wait) || 0;\n if (isObject(options)) {\n leading = !!options.leading;\n maxing = 'maxWait' in options;\n maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;\n trailing = 'trailing' in options ? !!options.trailing : trailing;\n }\n\n function invokeFunc(time) {\n var args = lastArgs,\n thisArg = lastThis;\n\n lastArgs = lastThis = undefined;\n lastInvokeTime = time;\n result = func.apply(thisArg, args);\n return result;\n }\n\n function leadingEdge(time) {\n // Reset any `maxWait` timer.\n lastInvokeTime = time;\n // Start the timer for the trailing edge.\n timerId = setTimeout(timerExpired, wait);\n // Invoke the leading edge.\n return leading ? invokeFunc(time) : result;\n }\n\n function remainingWait(time) {\n var timeSinceLastCall = time - lastCallTime,\n timeSinceLastInvoke = time - lastInvokeTime,\n timeWaiting = wait - timeSinceLastCall;\n\n return maxing\n ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke)\n : timeWaiting;\n }\n\n function shouldInvoke(time) {\n var timeSinceLastCall = time - lastCallTime,\n timeSinceLastInvoke = time - lastInvokeTime;\n\n // Either this is the first call, activity has stopped and we're at the\n // trailing edge, the system time has gone backwards and we're treating\n // it as the trailing edge, or we've hit the `maxWait` limit.\n return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||\n (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));\n }\n\n function timerExpired() {\n var time = now();\n if (shouldInvoke(time)) {\n return trailingEdge(time);\n }\n // Restart the timer.\n timerId = setTimeout(timerExpired, remainingWait(time));\n }\n\n function trailingEdge(time) {\n timerId = undefined;\n\n // Only invoke if we have `lastArgs` which means `func` has been\n // debounced at least once.\n if (trailing && lastArgs) {\n return invokeFunc(time);\n }\n lastArgs = lastThis = undefined;\n return result;\n }\n\n function cancel() {\n if (timerId !== undefined) {\n clearTimeout(timerId);\n }\n lastInvokeTime = 0;\n lastArgs = lastCallTime = lastThis = timerId = undefined;\n }\n\n function flush() {\n return timerId === undefined ? result : trailingEdge(now());\n }\n\n function debounced() {\n var time = now(),\n isInvoking = shouldInvoke(time);\n\n lastArgs = arguments;\n lastThis = this;\n lastCallTime = time;\n\n if (isInvoking) {\n if (timerId === undefined) {\n return leadingEdge(lastCallTime);\n }\n if (maxing) {\n // Handle invocations in a tight loop.\n clearTimeout(timerId);\n timerId = setTimeout(timerExpired, wait);\n return invokeFunc(lastCallTime);\n }\n }\n if (timerId === undefined) {\n timerId = setTimeout(timerExpired, wait);\n }\n return result;\n }\n debounced.cancel = cancel;\n debounced.flush = flush;\n return debounced;\n }\n\n /**\n * Defers invoking the `func` until the current call stack has cleared. Any\n * additional arguments are provided to `func` when it's invoked.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to defer.\n * @param {...*} [args] The arguments to invoke `func` with.\n * @returns {number} Returns the timer id.\n * @example\n *\n * _.defer(function(text) {\n * console.log(text);\n * }, 'deferred');\n * // => Logs 'deferred' after one millisecond.\n */\n var defer = baseRest(function(func, args) {\n return baseDelay(func, 1, args);\n });\n\n /**\n * Invokes `func` after `wait` milliseconds. Any additional arguments are\n * provided to `func` when it's invoked.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to delay.\n * @param {number} wait The number of milliseconds to delay invocation.\n * @param {...*} [args] The arguments to invoke `func` with.\n * @returns {number} Returns the timer id.\n * @example\n *\n * _.delay(function(text) {\n * console.log(text);\n * }, 1000, 'later');\n * // => Logs 'later' after one second.\n */\n var delay = baseRest(function(func, wait, args) {\n return baseDelay(func, toNumber(wait) || 0, args);\n });\n\n /**\n * Creates a function that invokes `func` with arguments reversed.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Function\n * @param {Function} func The function to flip arguments for.\n * @returns {Function} Returns the new flipped function.\n * @example\n *\n * var flipped = _.flip(function() {\n * return _.toArray(arguments);\n * });\n *\n * flipped('a', 'b', 'c', 'd');\n * // => ['d', 'c', 'b', 'a']\n */\n function flip(func) {\n return createWrap(func, WRAP_FLIP_FLAG);\n }\n\n /**\n * Creates a function that memoizes the result of `func`. If `resolver` is\n * provided, it determines the cache key for storing the result based on the\n * arguments provided to the memoized function. By default, the first argument\n * provided to the memoized function is used as the map cache key. The `func`\n * is invoked with the `this` binding of the memoized function.\n *\n * **Note:** The cache is exposed as the `cache` property on the memoized\n * function. Its creation may be customized by replacing the `_.memoize.Cache`\n * constructor with one whose instances implement the\n * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)\n * method interface of `clear`, `delete`, `get`, `has`, and `set`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to have its output memoized.\n * @param {Function} [resolver] The function to resolve the cache key.\n * @returns {Function} Returns the new memoized function.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n * var other = { 'c': 3, 'd': 4 };\n *\n * var values = _.memoize(_.values);\n * values(object);\n * // => [1, 2]\n *\n * values(other);\n * // => [3, 4]\n *\n * object.a = 2;\n * values(object);\n * // => [1, 2]\n *\n * // Modify the result cache.\n * values.cache.set(object, ['a', 'b']);\n * values(object);\n * // => ['a', 'b']\n *\n * // Replace `_.memoize.Cache`.\n * _.memoize.Cache = WeakMap;\n */\n function memoize(func, resolver) {\n if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n var memoized = function() {\n var args = arguments,\n key = resolver ? resolver.apply(this, args) : args[0],\n cache = memoized.cache;\n\n if (cache.has(key)) {\n return cache.get(key);\n }\n var result = func.apply(this, args);\n memoized.cache = cache.set(key, result) || cache;\n return result;\n };\n memoized.cache = new (memoize.Cache || MapCache);\n return memoized;\n }\n\n // Expose `MapCache`.\n memoize.Cache = MapCache;\n\n /**\n * Creates a function that negates the result of the predicate `func`. The\n * `func` predicate is invoked with the `this` binding and arguments of the\n * created function.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} predicate The predicate to negate.\n * @returns {Function} Returns the new negated function.\n * @example\n *\n * function isEven(n) {\n * return n % 2 == 0;\n * }\n *\n * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));\n * // => [1, 3, 5]\n */\n function negate(predicate) {\n if (typeof predicate != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n return function() {\n var args = arguments;\n switch (args.length) {\n case 0: return !predicate.call(this);\n case 1: return !predicate.call(this, args[0]);\n case 2: return !predicate.call(this, args[0], args[1]);\n case 3: return !predicate.call(this, args[0], args[1], args[2]);\n }\n return !predicate.apply(this, args);\n };\n }\n\n /**\n * Creates a function that is restricted to invoking `func` once. Repeat calls\n * to the function return the value of the first invocation. The `func` is\n * invoked with the `this` binding and arguments of the created function.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new restricted function.\n * @example\n *\n * var initialize = _.once(createApplication);\n * initialize();\n * initialize();\n * // => `createApplication` is invoked once\n */\n function once(func) {\n return before(2, func);\n }\n\n /**\n * Creates a function that invokes `func` with its arguments transformed.\n *\n * @static\n * @since 4.0.0\n * @memberOf _\n * @category Function\n * @param {Function} func The function to wrap.\n * @param {...(Function|Function[])} [transforms=[_.identity]]\n * The argument transforms.\n * @returns {Function} Returns the new function.\n * @example\n *\n * function doubled(n) {\n * return n * 2;\n * }\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * var func = _.overArgs(function(x, y) {\n * return [x, y];\n * }, [square, doubled]);\n *\n * func(9, 3);\n * // => [81, 6]\n *\n * func(10, 5);\n * // => [100, 10]\n */\n var overArgs = castRest(function(func, transforms) {\n transforms = (transforms.length == 1 && isArray(transforms[0]))\n ? arrayMap(transforms[0], baseUnary(getIteratee()))\n : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee()));\n\n var funcsLength = transforms.length;\n return baseRest(function(args) {\n var index = -1,\n length = nativeMin(args.length, funcsLength);\n\n while (++index < length) {\n args[index] = transforms[index].call(this, args[index]);\n }\n return apply(func, this, args);\n });\n });\n\n /**\n * Creates a function that invokes `func` with `partials` prepended to the\n * arguments it receives. This method is like `_.bind` except it does **not**\n * alter the `this` binding.\n *\n * The `_.partial.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for partially applied arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of partially\n * applied functions.\n *\n * @static\n * @memberOf _\n * @since 0.2.0\n * @category Function\n * @param {Function} func The function to partially apply arguments to.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new partially applied function.\n * @example\n *\n * function greet(greeting, name) {\n * return greeting + ' ' + name;\n * }\n *\n * var sayHelloTo = _.partial(greet, 'hello');\n * sayHelloTo('fred');\n * // => 'hello fred'\n *\n * // Partially applied with placeholders.\n * var greetFred = _.partial(greet, _, 'fred');\n * greetFred('hi');\n * // => 'hi fred'\n */\n var partial = baseRest(function(func, partials) {\n var holders = replaceHolders(partials, getHolder(partial));\n return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders);\n });\n\n /**\n * This method is like `_.partial` except that partially applied arguments\n * are appended to the arguments it receives.\n *\n * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for partially applied arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of partially\n * applied functions.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Function\n * @param {Function} func The function to partially apply arguments to.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new partially applied function.\n * @example\n *\n * function greet(greeting, name) {\n * return greeting + ' ' + name;\n * }\n *\n * var greetFred = _.partialRight(greet, 'fred');\n * greetFred('hi');\n * // => 'hi fred'\n *\n * // Partially applied with placeholders.\n * var sayHelloTo = _.partialRight(greet, 'hello', _);\n * sayHelloTo('fred');\n * // => 'hello fred'\n */\n var partialRight = baseRest(function(func, partials) {\n var holders = replaceHolders(partials, getHolder(partialRight));\n return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders);\n });\n\n /**\n * Creates a function that invokes `func` with arguments arranged according\n * to the specified `indexes` where the argument value at the first index is\n * provided as the first argument, the argument value at the second index is\n * provided as the second argument, and so on.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} func The function to rearrange arguments for.\n * @param {...(number|number[])} indexes The arranged argument indexes.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var rearged = _.rearg(function(a, b, c) {\n * return [a, b, c];\n * }, [2, 0, 1]);\n *\n * rearged('b', 'c', 'a')\n * // => ['a', 'b', 'c']\n */\n var rearg = flatRest(function(func, indexes) {\n return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes);\n });\n\n /**\n * Creates a function that invokes `func` with the `this` binding of the\n * created function and arguments from `start` and beyond provided as\n * an array.\n *\n * **Note:** This method is based on the\n * [rest parameter](https://mdn.io/rest_parameters).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Function\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var say = _.rest(function(what, names) {\n * return what + ' ' + _.initial(names).join(', ') +\n * (_.size(names) > 1 ? ', & ' : '') + _.last(names);\n * });\n *\n * say('hello', 'fred', 'barney', 'pebbles');\n * // => 'hello fred, barney, & pebbles'\n */\n function rest(func, start) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n start = start === undefined ? start : toInteger(start);\n return baseRest(func, start);\n }\n\n /**\n * Creates a function that invokes `func` with the `this` binding of the\n * create function and an array of arguments much like\n * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).\n *\n * **Note:** This method is based on the\n * [spread operator](https://mdn.io/spread_operator).\n *\n * @static\n * @memberOf _\n * @since 3.2.0\n * @category Function\n * @param {Function} func The function to spread arguments over.\n * @param {number} [start=0] The start position of the spread.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var say = _.spread(function(who, what) {\n * return who + ' says ' + what;\n * });\n *\n * say(['fred', 'hello']);\n * // => 'fred says hello'\n *\n * var numbers = Promise.all([\n * Promise.resolve(40),\n * Promise.resolve(36)\n * ]);\n *\n * numbers.then(_.spread(function(x, y) {\n * return x + y;\n * }));\n * // => a Promise of 76\n */\n function spread(func, start) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n start = start == null ? 0 : nativeMax(toInteger(start), 0);\n return baseRest(function(args) {\n var array = args[start],\n otherArgs = castSlice(args, 0, start);\n\n if (array) {\n arrayPush(otherArgs, array);\n }\n return apply(func, this, otherArgs);\n });\n }\n\n /**\n * Creates a throttled function that only invokes `func` at most once per\n * every `wait` milliseconds. The throttled function comes with a `cancel`\n * method to cancel delayed `func` invocations and a `flush` method to\n * immediately invoke them. Provide `options` to indicate whether `func`\n * should be invoked on the leading and/or trailing edge of the `wait`\n * timeout. The `func` is invoked with the last arguments provided to the\n * throttled function. Subsequent calls to the throttled function return the\n * result of the last `func` invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the throttled function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.throttle` and `_.debounce`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to throttle.\n * @param {number} [wait=0] The number of milliseconds to throttle invocations to.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=true]\n * Specify invoking on the leading edge of the timeout.\n * @param {boolean} [options.trailing=true]\n * Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new throttled function.\n * @example\n *\n * // Avoid excessively updating the position while scrolling.\n * jQuery(window).on('scroll', _.throttle(updatePosition, 100));\n *\n * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.\n * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });\n * jQuery(element).on('click', throttled);\n *\n * // Cancel the trailing throttled invocation.\n * jQuery(window).on('popstate', throttled.cancel);\n */\n function throttle(func, wait, options) {\n var leading = true,\n trailing = true;\n\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n if (isObject(options)) {\n leading = 'leading' in options ? !!options.leading : leading;\n trailing = 'trailing' in options ? !!options.trailing : trailing;\n }\n return debounce(func, wait, {\n 'leading': leading,\n 'maxWait': wait,\n 'trailing': trailing\n });\n }\n\n /**\n * Creates a function that accepts up to one argument, ignoring any\n * additional arguments.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Function\n * @param {Function} func The function to cap arguments for.\n * @returns {Function} Returns the new capped function.\n * @example\n *\n * _.map(['6', '8', '10'], _.unary(parseInt));\n * // => [6, 8, 10]\n */\n function unary(func) {\n return ary(func, 1);\n }\n\n /**\n * Creates a function that provides `value` to `wrapper` as its first\n * argument. Any additional arguments provided to the function are appended\n * to those provided to the `wrapper`. The wrapper is invoked with the `this`\n * binding of the created function.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {*} value The value to wrap.\n * @param {Function} [wrapper=identity] The wrapper function.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var p = _.wrap(_.escape, function(func, text) {\n * return '' + func(text) + '
';\n * });\n *\n * p('fred, barney, & pebbles');\n * // => 'fred, barney, & pebbles
'\n */\n function wrap(value, wrapper) {\n return partial(castFunction(wrapper), value);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Casts `value` as an array if it's not one.\n *\n * @static\n * @memberOf _\n * @since 4.4.0\n * @category Lang\n * @param {*} value The value to inspect.\n * @returns {Array} Returns the cast array.\n * @example\n *\n * _.castArray(1);\n * // => [1]\n *\n * _.castArray({ 'a': 1 });\n * // => [{ 'a': 1 }]\n *\n * _.castArray('abc');\n * // => ['abc']\n *\n * _.castArray(null);\n * // => [null]\n *\n * _.castArray(undefined);\n * // => [undefined]\n *\n * _.castArray();\n * // => []\n *\n * var array = [1, 2, 3];\n * console.log(_.castArray(array) === array);\n * // => true\n */\n function castArray() {\n if (!arguments.length) {\n return [];\n }\n var value = arguments[0];\n return isArray(value) ? value : [value];\n }\n\n /**\n * Creates a shallow clone of `value`.\n *\n * **Note:** This method is loosely based on the\n * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)\n * and supports cloning arrays, array buffers, booleans, date objects, maps,\n * numbers, `Object` objects, regexes, sets, strings, symbols, and typed\n * arrays. The own enumerable properties of `arguments` objects are cloned\n * as plain objects. An empty object is returned for uncloneable values such\n * as error objects, functions, DOM nodes, and WeakMaps.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to clone.\n * @returns {*} Returns the cloned value.\n * @see _.cloneDeep\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var shallow = _.clone(objects);\n * console.log(shallow[0] === objects[0]);\n * // => true\n */\n function clone(value) {\n return baseClone(value, CLONE_SYMBOLS_FLAG);\n }\n\n /**\n * This method is like `_.clone` except that it accepts `customizer` which\n * is invoked to produce the cloned value. If `customizer` returns `undefined`,\n * cloning is handled by the method instead. The `customizer` is invoked with\n * up to four arguments; (value [, index|key, object, stack]).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to clone.\n * @param {Function} [customizer] The function to customize cloning.\n * @returns {*} Returns the cloned value.\n * @see _.cloneDeepWith\n * @example\n *\n * function customizer(value) {\n * if (_.isElement(value)) {\n * return value.cloneNode(false);\n * }\n * }\n *\n * var el = _.cloneWith(document.body, customizer);\n *\n * console.log(el === document.body);\n * // => false\n * console.log(el.nodeName);\n * // => 'BODY'\n * console.log(el.childNodes.length);\n * // => 0\n */\n function cloneWith(value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseClone(value, CLONE_SYMBOLS_FLAG, customizer);\n }\n\n /**\n * This method is like `_.clone` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @returns {*} Returns the deep cloned value.\n * @see _.clone\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var deep = _.cloneDeep(objects);\n * console.log(deep[0] === objects[0]);\n * // => false\n */\n function cloneDeep(value) {\n return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);\n }\n\n /**\n * This method is like `_.cloneWith` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @param {Function} [customizer] The function to customize cloning.\n * @returns {*} Returns the deep cloned value.\n * @see _.cloneWith\n * @example\n *\n * function customizer(value) {\n * if (_.isElement(value)) {\n * return value.cloneNode(true);\n * }\n * }\n *\n * var el = _.cloneDeepWith(document.body, customizer);\n *\n * console.log(el === document.body);\n * // => false\n * console.log(el.nodeName);\n * // => 'BODY'\n * console.log(el.childNodes.length);\n * // => 20\n */\n function cloneDeepWith(value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);\n }\n\n /**\n * Checks if `object` conforms to `source` by invoking the predicate\n * properties of `source` with the corresponding property values of `object`.\n *\n * **Note:** This method is equivalent to `_.conforms` when `source` is\n * partially applied.\n *\n * @static\n * @memberOf _\n * @since 4.14.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property predicates to conform to.\n * @returns {boolean} Returns `true` if `object` conforms, else `false`.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n *\n * _.conformsTo(object, { 'b': function(n) { return n > 1; } });\n * // => true\n *\n * _.conformsTo(object, { 'b': function(n) { return n > 2; } });\n * // => false\n */\n function conformsTo(object, source) {\n return source == null || baseConformsTo(object, source, keys(source));\n }\n\n /**\n * Performs a\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * comparison between two values to determine if they are equivalent.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.eq(object, object);\n * // => true\n *\n * _.eq(object, other);\n * // => false\n *\n * _.eq('a', 'a');\n * // => true\n *\n * _.eq('a', Object('a'));\n * // => false\n *\n * _.eq(NaN, NaN);\n * // => true\n */\n function eq(value, other) {\n return value === other || (value !== value && other !== other);\n }\n\n /**\n * Checks if `value` is greater than `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than `other`,\n * else `false`.\n * @see _.lt\n * @example\n *\n * _.gt(3, 1);\n * // => true\n *\n * _.gt(3, 3);\n * // => false\n *\n * _.gt(1, 3);\n * // => false\n */\n var gt = createRelationalOperation(baseGt);\n\n /**\n * Checks if `value` is greater than or equal to `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than or equal to\n * `other`, else `false`.\n * @see _.lte\n * @example\n *\n * _.gte(3, 1);\n * // => true\n *\n * _.gte(3, 3);\n * // => true\n *\n * _.gte(1, 3);\n * // => false\n */\n var gte = createRelationalOperation(function(value, other) {\n return value >= other;\n });\n\n /**\n * Checks if `value` is likely an `arguments` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n * else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\n var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {\n return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&\n !propertyIsEnumerable.call(value, 'callee');\n };\n\n /**\n * Checks if `value` is classified as an `Array` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array, else `false`.\n * @example\n *\n * _.isArray([1, 2, 3]);\n * // => true\n *\n * _.isArray(document.body.children);\n * // => false\n *\n * _.isArray('abc');\n * // => false\n *\n * _.isArray(_.noop);\n * // => false\n */\n var isArray = Array.isArray;\n\n /**\n * Checks if `value` is classified as an `ArrayBuffer` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.\n * @example\n *\n * _.isArrayBuffer(new ArrayBuffer(2));\n * // => true\n *\n * _.isArrayBuffer(new Array(2));\n * // => false\n */\n var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer;\n\n /**\n * Checks if `value` is array-like. A value is considered array-like if it's\n * not a function and has a `value.length` that's an integer greater than or\n * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n * @example\n *\n * _.isArrayLike([1, 2, 3]);\n * // => true\n *\n * _.isArrayLike(document.body.children);\n * // => true\n *\n * _.isArrayLike('abc');\n * // => true\n *\n * _.isArrayLike(_.noop);\n * // => false\n */\n function isArrayLike(value) {\n return value != null && isLength(value.length) && !isFunction(value);\n }\n\n /**\n * This method is like `_.isArrayLike` except that it also checks if `value`\n * is an object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array-like object,\n * else `false`.\n * @example\n *\n * _.isArrayLikeObject([1, 2, 3]);\n * // => true\n *\n * _.isArrayLikeObject(document.body.children);\n * // => true\n *\n * _.isArrayLikeObject('abc');\n * // => false\n *\n * _.isArrayLikeObject(_.noop);\n * // => false\n */\n function isArrayLikeObject(value) {\n return isObjectLike(value) && isArrayLike(value);\n }\n\n /**\n * Checks if `value` is classified as a boolean primitive or object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a boolean, else `false`.\n * @example\n *\n * _.isBoolean(false);\n * // => true\n *\n * _.isBoolean(null);\n * // => false\n */\n function isBoolean(value) {\n return value === true || value === false ||\n (isObjectLike(value) && baseGetTag(value) == boolTag);\n }\n\n /**\n * Checks if `value` is a buffer.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.\n * @example\n *\n * _.isBuffer(new Buffer(2));\n * // => true\n *\n * _.isBuffer(new Uint8Array(2));\n * // => false\n */\n var isBuffer = nativeIsBuffer || stubFalse;\n\n /**\n * Checks if `value` is classified as a `Date` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a date object, else `false`.\n * @example\n *\n * _.isDate(new Date);\n * // => true\n *\n * _.isDate('Mon April 23 2012');\n * // => false\n */\n var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate;\n\n /**\n * Checks if `value` is likely a DOM element.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.\n * @example\n *\n * _.isElement(document.body);\n * // => true\n *\n * _.isElement('');\n * // => false\n */\n function isElement(value) {\n return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);\n }\n\n /**\n * Checks if `value` is an empty object, collection, map, or set.\n *\n * Objects are considered empty if they have no own enumerable string keyed\n * properties.\n *\n * Array-like values such as `arguments` objects, arrays, buffers, strings, or\n * jQuery-like collections are considered empty if they have a `length` of `0`.\n * Similarly, maps and sets are considered empty if they have a `size` of `0`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is empty, else `false`.\n * @example\n *\n * _.isEmpty(null);\n * // => true\n *\n * _.isEmpty(true);\n * // => true\n *\n * _.isEmpty(1);\n * // => true\n *\n * _.isEmpty([1, 2, 3]);\n * // => false\n *\n * _.isEmpty({ 'a': 1 });\n * // => false\n */\n function isEmpty(value) {\n if (value == null) {\n return true;\n }\n if (isArrayLike(value) &&\n (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||\n isBuffer(value) || isTypedArray(value) || isArguments(value))) {\n return !value.length;\n }\n var tag = getTag(value);\n if (tag == mapTag || tag == setTag) {\n return !value.size;\n }\n if (isPrototype(value)) {\n return !baseKeys(value).length;\n }\n for (var key in value) {\n if (hasOwnProperty.call(value, key)) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * Performs a deep comparison between two values to determine if they are\n * equivalent.\n *\n * **Note:** This method supports comparing arrays, array buffers, booleans,\n * date objects, error objects, maps, numbers, `Object` objects, regexes,\n * sets, strings, symbols, and typed arrays. `Object` objects are compared\n * by their own, not inherited, enumerable properties. Functions and DOM\n * nodes are compared by strict equality, i.e. `===`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.isEqual(object, other);\n * // => true\n *\n * object === other;\n * // => false\n */\n function isEqual(value, other) {\n return baseIsEqual(value, other);\n }\n\n /**\n * This method is like `_.isEqual` except that it accepts `customizer` which\n * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n * are handled by the method instead. The `customizer` is invoked with up to\n * six arguments: (objValue, othValue [, index|key, object, other, stack]).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * function isGreeting(value) {\n * return /^h(?:i|ello)$/.test(value);\n * }\n *\n * function customizer(objValue, othValue) {\n * if (isGreeting(objValue) && isGreeting(othValue)) {\n * return true;\n * }\n * }\n *\n * var array = ['hello', 'goodbye'];\n * var other = ['hi', 'goodbye'];\n *\n * _.isEqualWith(array, other, customizer);\n * // => true\n */\n function isEqualWith(value, other, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n var result = customizer ? customizer(value, other) : undefined;\n return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result;\n }\n\n /**\n * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,\n * `SyntaxError`, `TypeError`, or `URIError` object.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an error object, else `false`.\n * @example\n *\n * _.isError(new Error);\n * // => true\n *\n * _.isError(Error);\n * // => false\n */\n function isError(value) {\n if (!isObjectLike(value)) {\n return false;\n }\n var tag = baseGetTag(value);\n return tag == errorTag || tag == domExcTag ||\n (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value));\n }\n\n /**\n * Checks if `value` is a finite primitive number.\n *\n * **Note:** This method is based on\n * [`Number.isFinite`](https://mdn.io/Number/isFinite).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.\n * @example\n *\n * _.isFinite(3);\n * // => true\n *\n * _.isFinite(Number.MIN_VALUE);\n * // => true\n *\n * _.isFinite(Infinity);\n * // => false\n *\n * _.isFinite('3');\n * // => false\n */\n function isFinite(value) {\n return typeof value == 'number' && nativeIsFinite(value);\n }\n\n /**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a function, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\n function isFunction(value) {\n if (!isObject(value)) {\n return false;\n }\n // The use of `Object#toString` avoids issues with the `typeof` operator\n // in Safari 9 which returns 'object' for typed arrays and other constructors.\n var tag = baseGetTag(value);\n return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;\n }\n\n /**\n * Checks if `value` is an integer.\n *\n * **Note:** This method is based on\n * [`Number.isInteger`](https://mdn.io/Number/isInteger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an integer, else `false`.\n * @example\n *\n * _.isInteger(3);\n * // => true\n *\n * _.isInteger(Number.MIN_VALUE);\n * // => false\n *\n * _.isInteger(Infinity);\n * // => false\n *\n * _.isInteger('3');\n * // => false\n */\n function isInteger(value) {\n return typeof value == 'number' && value == toInteger(value);\n }\n\n /**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This method is loosely based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n * @example\n *\n * _.isLength(3);\n * // => true\n *\n * _.isLength(Number.MIN_VALUE);\n * // => false\n *\n * _.isLength(Infinity);\n * // => false\n *\n * _.isLength('3');\n * // => false\n */\n function isLength(value) {\n return typeof value == 'number' &&\n value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n }\n\n /**\n * Checks if `value` is the\n * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\n function isObject(value) {\n var type = typeof value;\n return value != null && (type == 'object' || type == 'function');\n }\n\n /**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\n function isObjectLike(value) {\n return value != null && typeof value == 'object';\n }\n\n /**\n * Checks if `value` is classified as a `Map` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n * @example\n *\n * _.isMap(new Map);\n * // => true\n *\n * _.isMap(new WeakMap);\n * // => false\n */\n var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;\n\n /**\n * Performs a partial deep comparison between `object` and `source` to\n * determine if `object` contains equivalent property values.\n *\n * **Note:** This method is equivalent to `_.matches` when `source` is\n * partially applied.\n *\n * Partial comparisons will match empty array and empty object `source`\n * values against any array or object value, respectively. See `_.isEqual`\n * for a list of supported value comparisons.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n *\n * _.isMatch(object, { 'b': 2 });\n * // => true\n *\n * _.isMatch(object, { 'b': 1 });\n * // => false\n */\n function isMatch(object, source) {\n return object === source || baseIsMatch(object, source, getMatchData(source));\n }\n\n /**\n * This method is like `_.isMatch` except that it accepts `customizer` which\n * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n * are handled by the method instead. The `customizer` is invoked with five\n * arguments: (objValue, srcValue, index|key, object, source).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n * @example\n *\n * function isGreeting(value) {\n * return /^h(?:i|ello)$/.test(value);\n * }\n *\n * function customizer(objValue, srcValue) {\n * if (isGreeting(objValue) && isGreeting(srcValue)) {\n * return true;\n * }\n * }\n *\n * var object = { 'greeting': 'hello' };\n * var source = { 'greeting': 'hi' };\n *\n * _.isMatchWith(object, source, customizer);\n * // => true\n */\n function isMatchWith(object, source, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseIsMatch(object, source, getMatchData(source), customizer);\n }\n\n /**\n * Checks if `value` is `NaN`.\n *\n * **Note:** This method is based on\n * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as\n * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for\n * `undefined` and other non-number values.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n * @example\n *\n * _.isNaN(NaN);\n * // => true\n *\n * _.isNaN(new Number(NaN));\n * // => true\n *\n * isNaN(undefined);\n * // => true\n *\n * _.isNaN(undefined);\n * // => false\n */\n function isNaN(value) {\n // An `NaN` primitive is the only value that is not equal to itself.\n // Perform the `toStringTag` check first to avoid errors with some\n // ActiveX objects in IE.\n return isNumber(value) && value != +value;\n }\n\n /**\n * Checks if `value` is a pristine native function.\n *\n * **Note:** This method can't reliably detect native functions in the presence\n * of the core-js package because core-js circumvents this kind of detection.\n * Despite multiple requests, the core-js maintainer has made it clear: any\n * attempt to fix the detection will be obstructed. As a result, we're left\n * with little choice but to throw an error. Unfortunately, this also affects\n * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),\n * which rely on core-js.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n * @example\n *\n * _.isNative(Array.prototype.push);\n * // => true\n *\n * _.isNative(_);\n * // => false\n */\n function isNative(value) {\n if (isMaskable(value)) {\n throw new Error(CORE_ERROR_TEXT);\n }\n return baseIsNative(value);\n }\n\n /**\n * Checks if `value` is `null`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `null`, else `false`.\n * @example\n *\n * _.isNull(null);\n * // => true\n *\n * _.isNull(void 0);\n * // => false\n */\n function isNull(value) {\n return value === null;\n }\n\n /**\n * Checks if `value` is `null` or `undefined`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is nullish, else `false`.\n * @example\n *\n * _.isNil(null);\n * // => true\n *\n * _.isNil(void 0);\n * // => true\n *\n * _.isNil(NaN);\n * // => false\n */\n function isNil(value) {\n return value == null;\n }\n\n /**\n * Checks if `value` is classified as a `Number` primitive or object.\n *\n * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are\n * classified as numbers, use the `_.isFinite` method.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a number, else `false`.\n * @example\n *\n * _.isNumber(3);\n * // => true\n *\n * _.isNumber(Number.MIN_VALUE);\n * // => true\n *\n * _.isNumber(Infinity);\n * // => true\n *\n * _.isNumber('3');\n * // => false\n */\n function isNumber(value) {\n return typeof value == 'number' ||\n (isObjectLike(value) && baseGetTag(value) == numberTag);\n }\n\n /**\n * Checks if `value` is a plain object, that is, an object created by the\n * `Object` constructor or one with a `[[Prototype]]` of `null`.\n *\n * @static\n * @memberOf _\n * @since 0.8.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * _.isPlainObject(new Foo);\n * // => false\n *\n * _.isPlainObject([1, 2, 3]);\n * // => false\n *\n * _.isPlainObject({ 'x': 0, 'y': 0 });\n * // => true\n *\n * _.isPlainObject(Object.create(null));\n * // => true\n */\n function isPlainObject(value) {\n if (!isObjectLike(value) || baseGetTag(value) != objectTag) {\n return false;\n }\n var proto = getPrototype(value);\n if (proto === null) {\n return true;\n }\n var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;\n return typeof Ctor == 'function' && Ctor instanceof Ctor &&\n funcToString.call(Ctor) == objectCtorString;\n }\n\n /**\n * Checks if `value` is classified as a `RegExp` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.\n * @example\n *\n * _.isRegExp(/abc/);\n * // => true\n *\n * _.isRegExp('/abc/');\n * // => false\n */\n var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp;\n\n /**\n * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754\n * double precision number which isn't the result of a rounded unsafe integer.\n *\n * **Note:** This method is based on\n * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.\n * @example\n *\n * _.isSafeInteger(3);\n * // => true\n *\n * _.isSafeInteger(Number.MIN_VALUE);\n * // => false\n *\n * _.isSafeInteger(Infinity);\n * // => false\n *\n * _.isSafeInteger('3');\n * // => false\n */\n function isSafeInteger(value) {\n return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER;\n }\n\n /**\n * Checks if `value` is classified as a `Set` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n * @example\n *\n * _.isSet(new Set);\n * // => true\n *\n * _.isSet(new WeakSet);\n * // => false\n */\n var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;\n\n /**\n * Checks if `value` is classified as a `String` primitive or object.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a string, else `false`.\n * @example\n *\n * _.isString('abc');\n * // => true\n *\n * _.isString(1);\n * // => false\n */\n function isString(value) {\n return typeof value == 'string' ||\n (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);\n }\n\n /**\n * Checks if `value` is classified as a `Symbol` primitive or object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n * @example\n *\n * _.isSymbol(Symbol.iterator);\n * // => true\n *\n * _.isSymbol('abc');\n * // => false\n */\n function isSymbol(value) {\n return typeof value == 'symbol' ||\n (isObjectLike(value) && baseGetTag(value) == symbolTag);\n }\n\n /**\n * Checks if `value` is classified as a typed array.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n * @example\n *\n * _.isTypedArray(new Uint8Array);\n * // => true\n *\n * _.isTypedArray([]);\n * // => false\n */\n var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;\n\n /**\n * Checks if `value` is `undefined`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.\n * @example\n *\n * _.isUndefined(void 0);\n * // => true\n *\n * _.isUndefined(null);\n * // => false\n */\n function isUndefined(value) {\n return value === undefined;\n }\n\n /**\n * Checks if `value` is classified as a `WeakMap` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a weak map, else `false`.\n * @example\n *\n * _.isWeakMap(new WeakMap);\n * // => true\n *\n * _.isWeakMap(new Map);\n * // => false\n */\n function isWeakMap(value) {\n return isObjectLike(value) && getTag(value) == weakMapTag;\n }\n\n /**\n * Checks if `value` is classified as a `WeakSet` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a weak set, else `false`.\n * @example\n *\n * _.isWeakSet(new WeakSet);\n * // => true\n *\n * _.isWeakSet(new Set);\n * // => false\n */\n function isWeakSet(value) {\n return isObjectLike(value) && baseGetTag(value) == weakSetTag;\n }\n\n /**\n * Checks if `value` is less than `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than `other`,\n * else `false`.\n * @see _.gt\n * @example\n *\n * _.lt(1, 3);\n * // => true\n *\n * _.lt(3, 3);\n * // => false\n *\n * _.lt(3, 1);\n * // => false\n */\n var lt = createRelationalOperation(baseLt);\n\n /**\n * Checks if `value` is less than or equal to `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than or equal to\n * `other`, else `false`.\n * @see _.gte\n * @example\n *\n * _.lte(1, 3);\n * // => true\n *\n * _.lte(3, 3);\n * // => true\n *\n * _.lte(3, 1);\n * // => false\n */\n var lte = createRelationalOperation(function(value, other) {\n return value <= other;\n });\n\n /**\n * Converts `value` to an array.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Array} Returns the converted array.\n * @example\n *\n * _.toArray({ 'a': 1, 'b': 2 });\n * // => [1, 2]\n *\n * _.toArray('abc');\n * // => ['a', 'b', 'c']\n *\n * _.toArray(1);\n * // => []\n *\n * _.toArray(null);\n * // => []\n */\n function toArray(value) {\n if (!value) {\n return [];\n }\n if (isArrayLike(value)) {\n return isString(value) ? stringToArray(value) : copyArray(value);\n }\n if (symIterator && value[symIterator]) {\n return iteratorToArray(value[symIterator]());\n }\n var tag = getTag(value),\n func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values);\n\n return func(value);\n }\n\n /**\n * Converts `value` to a finite number.\n *\n * @static\n * @memberOf _\n * @since 4.12.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted number.\n * @example\n *\n * _.toFinite(3.2);\n * // => 3.2\n *\n * _.toFinite(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toFinite(Infinity);\n * // => 1.7976931348623157e+308\n *\n * _.toFinite('3.2');\n * // => 3.2\n */\n function toFinite(value) {\n if (!value) {\n return value === 0 ? value : 0;\n }\n value = toNumber(value);\n if (value === INFINITY || value === -INFINITY) {\n var sign = (value < 0 ? -1 : 1);\n return sign * MAX_INTEGER;\n }\n return value === value ? value : 0;\n }\n\n /**\n * Converts `value` to an integer.\n *\n * **Note:** This method is loosely based on\n * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toInteger(3.2);\n * // => 3\n *\n * _.toInteger(Number.MIN_VALUE);\n * // => 0\n *\n * _.toInteger(Infinity);\n * // => 1.7976931348623157e+308\n *\n * _.toInteger('3.2');\n * // => 3\n */\n function toInteger(value) {\n var result = toFinite(value),\n remainder = result % 1;\n\n return result === result ? (remainder ? result - remainder : result) : 0;\n }\n\n /**\n * Converts `value` to an integer suitable for use as the length of an\n * array-like object.\n *\n * **Note:** This method is based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toLength(3.2);\n * // => 3\n *\n * _.toLength(Number.MIN_VALUE);\n * // => 0\n *\n * _.toLength(Infinity);\n * // => 4294967295\n *\n * _.toLength('3.2');\n * // => 3\n */\n function toLength(value) {\n return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;\n }\n\n /**\n * Converts `value` to a number.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n * @example\n *\n * _.toNumber(3.2);\n * // => 3.2\n *\n * _.toNumber(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toNumber(Infinity);\n * // => Infinity\n *\n * _.toNumber('3.2');\n * // => 3.2\n */\n function toNumber(value) {\n if (typeof value == 'number') {\n return value;\n }\n if (isSymbol(value)) {\n return NAN;\n }\n if (isObject(value)) {\n var other = typeof value.valueOf == 'function' ? value.valueOf() : value;\n value = isObject(other) ? (other + '') : other;\n }\n if (typeof value != 'string') {\n return value === 0 ? value : +value;\n }\n value = baseTrim(value);\n var isBinary = reIsBinary.test(value);\n return (isBinary || reIsOctal.test(value))\n ? freeParseInt(value.slice(2), isBinary ? 2 : 8)\n : (reIsBadHex.test(value) ? NAN : +value);\n }\n\n /**\n * Converts `value` to a plain object flattening inherited enumerable string\n * keyed properties of `value` to own properties of the plain object.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Object} Returns the converted plain object.\n * @example\n *\n * function Foo() {\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.assign({ 'a': 1 }, new Foo);\n * // => { 'a': 1, 'b': 2 }\n *\n * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));\n * // => { 'a': 1, 'b': 2, 'c': 3 }\n */\n function toPlainObject(value) {\n return copyObject(value, keysIn(value));\n }\n\n /**\n * Converts `value` to a safe integer. A safe integer can be compared and\n * represented correctly.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toSafeInteger(3.2);\n * // => 3\n *\n * _.toSafeInteger(Number.MIN_VALUE);\n * // => 0\n *\n * _.toSafeInteger(Infinity);\n * // => 9007199254740991\n *\n * _.toSafeInteger('3.2');\n * // => 3\n */\n function toSafeInteger(value) {\n return value\n ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER)\n : (value === 0 ? value : 0);\n }\n\n /**\n * Converts `value` to a string. An empty string is returned for `null`\n * and `undefined` values. The sign of `-0` is preserved.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n * @example\n *\n * _.toString(null);\n * // => ''\n *\n * _.toString(-0);\n * // => '-0'\n *\n * _.toString([1, 2, 3]);\n * // => '1,2,3'\n */\n function toString(value) {\n return value == null ? '' : baseToString(value);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Assigns own enumerable string keyed properties of source objects to the\n * destination object. Source objects are applied from left to right.\n * Subsequent sources overwrite property assignments of previous sources.\n *\n * **Note:** This method mutates `object` and is loosely based on\n * [`Object.assign`](https://mdn.io/Object/assign).\n *\n * @static\n * @memberOf _\n * @since 0.10.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.assignIn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * function Bar() {\n * this.c = 3;\n * }\n *\n * Foo.prototype.b = 2;\n * Bar.prototype.d = 4;\n *\n * _.assign({ 'a': 0 }, new Foo, new Bar);\n * // => { 'a': 1, 'c': 3 }\n */\n var assign = createAssigner(function(object, source) {\n if (isPrototype(source) || isArrayLike(source)) {\n copyObject(source, keys(source), object);\n return;\n }\n for (var key in source) {\n if (hasOwnProperty.call(source, key)) {\n assignValue(object, key, source[key]);\n }\n }\n });\n\n /**\n * This method is like `_.assign` except that it iterates over own and\n * inherited source properties.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias extend\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.assign\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * function Bar() {\n * this.c = 3;\n * }\n *\n * Foo.prototype.b = 2;\n * Bar.prototype.d = 4;\n *\n * _.assignIn({ 'a': 0 }, new Foo, new Bar);\n * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }\n */\n var assignIn = createAssigner(function(object, source) {\n copyObject(source, keysIn(source), object);\n });\n\n /**\n * This method is like `_.assignIn` except that it accepts `customizer`\n * which is invoked to produce the assigned values. If `customizer` returns\n * `undefined`, assignment is handled by the method instead. The `customizer`\n * is invoked with five arguments: (objValue, srcValue, key, object, source).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias extendWith\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @see _.assignWith\n * @example\n *\n * function customizer(objValue, srcValue) {\n * return _.isUndefined(objValue) ? srcValue : objValue;\n * }\n *\n * var defaults = _.partialRight(_.assignInWith, customizer);\n *\n * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var assignInWith = createAssigner(function(object, source, srcIndex, customizer) {\n copyObject(source, keysIn(source), object, customizer);\n });\n\n /**\n * This method is like `_.assign` except that it accepts `customizer`\n * which is invoked to produce the assigned values. If `customizer` returns\n * `undefined`, assignment is handled by the method instead. The `customizer`\n * is invoked with five arguments: (objValue, srcValue, key, object, source).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @see _.assignInWith\n * @example\n *\n * function customizer(objValue, srcValue) {\n * return _.isUndefined(objValue) ? srcValue : objValue;\n * }\n *\n * var defaults = _.partialRight(_.assignWith, customizer);\n *\n * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var assignWith = createAssigner(function(object, source, srcIndex, customizer) {\n copyObject(source, keys(source), object, customizer);\n });\n\n /**\n * Creates an array of values corresponding to `paths` of `object`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Array} Returns the picked values.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n *\n * _.at(object, ['a[0].b.c', 'a[1]']);\n * // => [3, 4]\n */\n var at = flatRest(baseAt);\n\n /**\n * Creates an object that inherits from the `prototype` object. If a\n * `properties` object is given, its own enumerable string keyed properties\n * are assigned to the created object.\n *\n * @static\n * @memberOf _\n * @since 2.3.0\n * @category Object\n * @param {Object} prototype The object to inherit from.\n * @param {Object} [properties] The properties to assign to the object.\n * @returns {Object} Returns the new object.\n * @example\n *\n * function Shape() {\n * this.x = 0;\n * this.y = 0;\n * }\n *\n * function Circle() {\n * Shape.call(this);\n * }\n *\n * Circle.prototype = _.create(Shape.prototype, {\n * 'constructor': Circle\n * });\n *\n * var circle = new Circle;\n * circle instanceof Circle;\n * // => true\n *\n * circle instanceof Shape;\n * // => true\n */\n function create(prototype, properties) {\n var result = baseCreate(prototype);\n return properties == null ? result : baseAssign(result, properties);\n }\n\n /**\n * Assigns own and inherited enumerable string keyed properties of source\n * objects to the destination object for all destination properties that\n * resolve to `undefined`. Source objects are applied from left to right.\n * Once a property is set, additional values of the same property are ignored.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.defaultsDeep\n * @example\n *\n * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var defaults = baseRest(function(object, sources) {\n object = Object(object);\n\n var index = -1;\n var length = sources.length;\n var guard = length > 2 ? sources[2] : undefined;\n\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n length = 1;\n }\n\n while (++index < length) {\n var source = sources[index];\n var props = keysIn(source);\n var propsIndex = -1;\n var propsLength = props.length;\n\n while (++propsIndex < propsLength) {\n var key = props[propsIndex];\n var value = object[key];\n\n if (value === undefined ||\n (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) {\n object[key] = source[key];\n }\n }\n }\n\n return object;\n });\n\n /**\n * This method is like `_.defaults` except that it recursively assigns\n * default properties.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 3.10.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.defaults\n * @example\n *\n * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } });\n * // => { 'a': { 'b': 2, 'c': 3 } }\n */\n var defaultsDeep = baseRest(function(args) {\n args.push(undefined, customDefaultsMerge);\n return apply(mergeWith, undefined, args);\n });\n\n /**\n * This method is like `_.find` except that it returns the key of the first\n * element `predicate` returns truthy for instead of the element itself.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {string|undefined} Returns the key of the matched element,\n * else `undefined`.\n * @example\n *\n * var users = {\n * 'barney': { 'age': 36, 'active': true },\n * 'fred': { 'age': 40, 'active': false },\n * 'pebbles': { 'age': 1, 'active': true }\n * };\n *\n * _.findKey(users, function(o) { return o.age < 40; });\n * // => 'barney' (iteration order is not guaranteed)\n *\n * // The `_.matches` iteratee shorthand.\n * _.findKey(users, { 'age': 1, 'active': true });\n * // => 'pebbles'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findKey(users, ['active', false]);\n * // => 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.findKey(users, 'active');\n * // => 'barney'\n */\n function findKey(object, predicate) {\n return baseFindKey(object, getIteratee(predicate, 3), baseForOwn);\n }\n\n /**\n * This method is like `_.findKey` except that it iterates over elements of\n * a collection in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {string|undefined} Returns the key of the matched element,\n * else `undefined`.\n * @example\n *\n * var users = {\n * 'barney': { 'age': 36, 'active': true },\n * 'fred': { 'age': 40, 'active': false },\n * 'pebbles': { 'age': 1, 'active': true }\n * };\n *\n * _.findLastKey(users, function(o) { return o.age < 40; });\n * // => returns 'pebbles' assuming `_.findKey` returns 'barney'\n *\n * // The `_.matches` iteratee shorthand.\n * _.findLastKey(users, { 'age': 36, 'active': true });\n * // => 'barney'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findLastKey(users, ['active', false]);\n * // => 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.findLastKey(users, 'active');\n * // => 'pebbles'\n */\n function findLastKey(object, predicate) {\n return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight);\n }\n\n /**\n * Iterates over own and inherited enumerable string keyed properties of an\n * object and invokes `iteratee` for each property. The iteratee is invoked\n * with three arguments: (value, key, object). Iteratee functions may exit\n * iteration early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 0.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forInRight\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forIn(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).\n */\n function forIn(object, iteratee) {\n return object == null\n ? object\n : baseFor(object, getIteratee(iteratee, 3), keysIn);\n }\n\n /**\n * This method is like `_.forIn` except that it iterates over properties of\n * `object` in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forIn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forInRight(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'.\n */\n function forInRight(object, iteratee) {\n return object == null\n ? object\n : baseForRight(object, getIteratee(iteratee, 3), keysIn);\n }\n\n /**\n * Iterates over own enumerable string keyed properties of an object and\n * invokes `iteratee` for each property. The iteratee is invoked with three\n * arguments: (value, key, object). Iteratee functions may exit iteration\n * early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 0.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forOwnRight\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forOwn(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a' then 'b' (iteration order is not guaranteed).\n */\n function forOwn(object, iteratee) {\n return object && baseForOwn(object, getIteratee(iteratee, 3));\n }\n\n /**\n * This method is like `_.forOwn` except that it iterates over properties of\n * `object` in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forOwn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forOwnRight(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.\n */\n function forOwnRight(object, iteratee) {\n return object && baseForOwnRight(object, getIteratee(iteratee, 3));\n }\n\n /**\n * Creates an array of function property names from own enumerable properties\n * of `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to inspect.\n * @returns {Array} Returns the function names.\n * @see _.functionsIn\n * @example\n *\n * function Foo() {\n * this.a = _.constant('a');\n * this.b = _.constant('b');\n * }\n *\n * Foo.prototype.c = _.constant('c');\n *\n * _.functions(new Foo);\n * // => ['a', 'b']\n */\n function functions(object) {\n return object == null ? [] : baseFunctions(object, keys(object));\n }\n\n /**\n * Creates an array of function property names from own and inherited\n * enumerable properties of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @returns {Array} Returns the function names.\n * @see _.functions\n * @example\n *\n * function Foo() {\n * this.a = _.constant('a');\n * this.b = _.constant('b');\n * }\n *\n * Foo.prototype.c = _.constant('c');\n *\n * _.functionsIn(new Foo);\n * // => ['a', 'b', 'c']\n */\n function functionsIn(object) {\n return object == null ? [] : baseFunctions(object, keysIn(object));\n }\n\n /**\n * Gets the value at `path` of `object`. If the resolved value is\n * `undefined`, the `defaultValue` is returned in its place.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.get(object, 'a[0].b.c');\n * // => 3\n *\n * _.get(object, ['a', '0', 'b', 'c']);\n * // => 3\n *\n * _.get(object, 'a.b.c', 'default');\n * // => 'default'\n */\n function get(object, path, defaultValue) {\n var result = object == null ? undefined : baseGet(object, path);\n return result === undefined ? defaultValue : result;\n }\n\n /**\n * Checks if `path` is a direct property of `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n * @example\n *\n * var object = { 'a': { 'b': 2 } };\n * var other = _.create({ 'a': _.create({ 'b': 2 }) });\n *\n * _.has(object, 'a');\n * // => true\n *\n * _.has(object, 'a.b');\n * // => true\n *\n * _.has(object, ['a', 'b']);\n * // => true\n *\n * _.has(other, 'a');\n * // => false\n */\n function has(object, path) {\n return object != null && hasPath(object, path, baseHas);\n }\n\n /**\n * Checks if `path` is a direct or inherited property of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n * @example\n *\n * var object = _.create({ 'a': _.create({ 'b': 2 }) });\n *\n * _.hasIn(object, 'a');\n * // => true\n *\n * _.hasIn(object, 'a.b');\n * // => true\n *\n * _.hasIn(object, ['a', 'b']);\n * // => true\n *\n * _.hasIn(object, 'b');\n * // => false\n */\n function hasIn(object, path) {\n return object != null && hasPath(object, path, baseHasIn);\n }\n\n /**\n * Creates an object composed of the inverted keys and values of `object`.\n * If `object` contains duplicate values, subsequent values overwrite\n * property assignments of previous values.\n *\n * @static\n * @memberOf _\n * @since 0.7.0\n * @category Object\n * @param {Object} object The object to invert.\n * @returns {Object} Returns the new inverted object.\n * @example\n *\n * var object = { 'a': 1, 'b': 2, 'c': 1 };\n *\n * _.invert(object);\n * // => { '1': 'c', '2': 'b' }\n */\n var invert = createInverter(function(result, value, key) {\n if (value != null &&\n typeof value.toString != 'function') {\n value = nativeObjectToString.call(value);\n }\n\n result[value] = key;\n }, constant(identity));\n\n /**\n * This method is like `_.invert` except that the inverted object is generated\n * from the results of running each element of `object` thru `iteratee`. The\n * corresponding inverted value of each inverted key is an array of keys\n * responsible for generating the inverted value. The iteratee is invoked\n * with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.1.0\n * @category Object\n * @param {Object} object The object to invert.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Object} Returns the new inverted object.\n * @example\n *\n * var object = { 'a': 1, 'b': 2, 'c': 1 };\n *\n * _.invertBy(object);\n * // => { '1': ['a', 'c'], '2': ['b'] }\n *\n * _.invertBy(object, function(value) {\n * return 'group' + value;\n * });\n * // => { 'group1': ['a', 'c'], 'group2': ['b'] }\n */\n var invertBy = createInverter(function(result, value, key) {\n if (value != null &&\n typeof value.toString != 'function') {\n value = nativeObjectToString.call(value);\n }\n\n if (hasOwnProperty.call(result, value)) {\n result[value].push(key);\n } else {\n result[value] = [key];\n }\n }, getIteratee);\n\n /**\n * Invokes the method at `path` of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the method to invoke.\n * @param {...*} [args] The arguments to invoke the method with.\n * @returns {*} Returns the result of the invoked method.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };\n *\n * _.invoke(object, 'a[0].b.c.slice', 1, 3);\n * // => [2, 3]\n */\n var invoke = baseRest(baseInvoke);\n\n /**\n * Creates an array of the own enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects. See the\n * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * for more details.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keys(new Foo);\n * // => ['a', 'b'] (iteration order is not guaranteed)\n *\n * _.keys('hi');\n * // => ['0', '1']\n */\n function keys(object) {\n return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);\n }\n\n /**\n * Creates an array of the own and inherited enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keysIn(new Foo);\n * // => ['a', 'b', 'c'] (iteration order is not guaranteed)\n */\n function keysIn(object) {\n return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);\n }\n\n /**\n * The opposite of `_.mapValues`; this method creates an object with the\n * same values as `object` and keys generated by running each own enumerable\n * string keyed property of `object` thru `iteratee`. The iteratee is invoked\n * with three arguments: (value, key, object).\n *\n * @static\n * @memberOf _\n * @since 3.8.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns the new mapped object.\n * @see _.mapValues\n * @example\n *\n * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {\n * return key + value;\n * });\n * // => { 'a1': 1, 'b2': 2 }\n */\n function mapKeys(object, iteratee) {\n var result = {};\n iteratee = getIteratee(iteratee, 3);\n\n baseForOwn(object, function(value, key, object) {\n baseAssignValue(result, iteratee(value, key, object), value);\n });\n return result;\n }\n\n /**\n * Creates an object with the same keys as `object` and values generated\n * by running each own enumerable string keyed property of `object` thru\n * `iteratee`. The iteratee is invoked with three arguments:\n * (value, key, object).\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns the new mapped object.\n * @see _.mapKeys\n * @example\n *\n * var users = {\n * 'fred': { 'user': 'fred', 'age': 40 },\n * 'pebbles': { 'user': 'pebbles', 'age': 1 }\n * };\n *\n * _.mapValues(users, function(o) { return o.age; });\n * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n *\n * // The `_.property` iteratee shorthand.\n * _.mapValues(users, 'age');\n * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n */\n function mapValues(object, iteratee) {\n var result = {};\n iteratee = getIteratee(iteratee, 3);\n\n baseForOwn(object, function(value, key, object) {\n baseAssignValue(result, key, iteratee(value, key, object));\n });\n return result;\n }\n\n /**\n * This method is like `_.assign` except that it recursively merges own and\n * inherited enumerable string keyed properties of source objects into the\n * destination object. Source properties that resolve to `undefined` are\n * skipped if a destination value exists. Array and plain object properties\n * are merged recursively. Other objects and value types are overridden by\n * assignment. Source objects are applied from left to right. Subsequent\n * sources overwrite property assignments of previous sources.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {\n * 'a': [{ 'b': 2 }, { 'd': 4 }]\n * };\n *\n * var other = {\n * 'a': [{ 'c': 3 }, { 'e': 5 }]\n * };\n *\n * _.merge(object, other);\n * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }\n */\n var merge = createAssigner(function(object, source, srcIndex) {\n baseMerge(object, source, srcIndex);\n });\n\n /**\n * This method is like `_.merge` except that it accepts `customizer` which\n * is invoked to produce the merged values of the destination and source\n * properties. If `customizer` returns `undefined`, merging is handled by the\n * method instead. The `customizer` is invoked with six arguments:\n * (objValue, srcValue, key, object, source, stack).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} customizer The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * function customizer(objValue, srcValue) {\n * if (_.isArray(objValue)) {\n * return objValue.concat(srcValue);\n * }\n * }\n *\n * var object = { 'a': [1], 'b': [2] };\n * var other = { 'a': [3], 'b': [4] };\n *\n * _.mergeWith(object, other, customizer);\n * // => { 'a': [1, 3], 'b': [2, 4] }\n */\n var mergeWith = createAssigner(function(object, source, srcIndex, customizer) {\n baseMerge(object, source, srcIndex, customizer);\n });\n\n /**\n * The opposite of `_.pick`; this method creates an object composed of the\n * own and inherited enumerable property paths of `object` that are not omitted.\n *\n * **Note:** This method is considerably slower than `_.pick`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The source object.\n * @param {...(string|string[])} [paths] The property paths to omit.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.omit(object, ['a', 'c']);\n * // => { 'b': '2' }\n */\n var omit = flatRest(function(object, paths) {\n var result = {};\n if (object == null) {\n return result;\n }\n var isDeep = false;\n paths = arrayMap(paths, function(path) {\n path = castPath(path, object);\n isDeep || (isDeep = path.length > 1);\n return path;\n });\n copyObject(object, getAllKeysIn(object), result);\n if (isDeep) {\n result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone);\n }\n var length = paths.length;\n while (length--) {\n baseUnset(result, paths[length]);\n }\n return result;\n });\n\n /**\n * The opposite of `_.pickBy`; this method creates an object composed of\n * the own and inherited enumerable string keyed properties of `object` that\n * `predicate` doesn't return truthy for. The predicate is invoked with two\n * arguments: (value, key).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The source object.\n * @param {Function} [predicate=_.identity] The function invoked per property.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.omitBy(object, _.isNumber);\n * // => { 'b': '2' }\n */\n function omitBy(object, predicate) {\n return pickBy(object, negate(getIteratee(predicate)));\n }\n\n /**\n * Creates an object composed of the picked `object` properties.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The source object.\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.pick(object, ['a', 'c']);\n * // => { 'a': 1, 'c': 3 }\n */\n var pick = flatRest(function(object, paths) {\n return object == null ? {} : basePick(object, paths);\n });\n\n /**\n * Creates an object composed of the `object` properties `predicate` returns\n * truthy for. The predicate is invoked with two arguments: (value, key).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The source object.\n * @param {Function} [predicate=_.identity] The function invoked per property.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.pickBy(object, _.isNumber);\n * // => { 'a': 1, 'c': 3 }\n */\n function pickBy(object, predicate) {\n if (object == null) {\n return {};\n }\n var props = arrayMap(getAllKeysIn(object), function(prop) {\n return [prop];\n });\n predicate = getIteratee(predicate);\n return basePickBy(object, props, function(value, path) {\n return predicate(value, path[0]);\n });\n }\n\n /**\n * This method is like `_.get` except that if the resolved value is a\n * function it's invoked with the `this` binding of its parent object and\n * its result is returned.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to resolve.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };\n *\n * _.result(object, 'a[0].b.c1');\n * // => 3\n *\n * _.result(object, 'a[0].b.c2');\n * // => 4\n *\n * _.result(object, 'a[0].b.c3', 'default');\n * // => 'default'\n *\n * _.result(object, 'a[0].b.c3', _.constant('default'));\n * // => 'default'\n */\n function result(object, path, defaultValue) {\n path = castPath(path, object);\n\n var index = -1,\n length = path.length;\n\n // Ensure the loop is entered when path is empty.\n if (!length) {\n length = 1;\n object = undefined;\n }\n while (++index < length) {\n var value = object == null ? undefined : object[toKey(path[index])];\n if (value === undefined) {\n index = length;\n value = defaultValue;\n }\n object = isFunction(value) ? value.call(object) : value;\n }\n return object;\n }\n\n /**\n * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,\n * it's created. Arrays are created for missing index properties while objects\n * are created for all other missing properties. Use `_.setWith` to customize\n * `path` creation.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.set(object, 'a[0].b.c', 4);\n * console.log(object.a[0].b.c);\n * // => 4\n *\n * _.set(object, ['x', '0', 'y', 'z'], 5);\n * console.log(object.x[0].y.z);\n * // => 5\n */\n function set(object, path, value) {\n return object == null ? object : baseSet(object, path, value);\n }\n\n /**\n * This method is like `_.set` except that it accepts `customizer` which is\n * invoked to produce the objects of `path`. If `customizer` returns `undefined`\n * path creation is handled by the method instead. The `customizer` is invoked\n * with three arguments: (nsValue, key, nsObject).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {};\n *\n * _.setWith(object, '[0][1]', 'a', Object);\n * // => { '0': { '1': 'a' } }\n */\n function setWith(object, path, value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return object == null ? object : baseSet(object, path, value, customizer);\n }\n\n /**\n * Creates an array of own enumerable string keyed-value pairs for `object`\n * which can be consumed by `_.fromPairs`. If `object` is a map or set, its\n * entries are returned.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias entries\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the key-value pairs.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.toPairs(new Foo);\n * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)\n */\n var toPairs = createToPairs(keys);\n\n /**\n * Creates an array of own and inherited enumerable string keyed-value pairs\n * for `object` which can be consumed by `_.fromPairs`. If `object` is a map\n * or set, its entries are returned.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias entriesIn\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the key-value pairs.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.toPairsIn(new Foo);\n * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)\n */\n var toPairsIn = createToPairs(keysIn);\n\n /**\n * An alternative to `_.reduce`; this method transforms `object` to a new\n * `accumulator` object which is the result of running each of its own\n * enumerable string keyed properties thru `iteratee`, with each invocation\n * potentially mutating the `accumulator` object. If `accumulator` is not\n * provided, a new object with the same `[[Prototype]]` will be used. The\n * iteratee is invoked with four arguments: (accumulator, value, key, object).\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 1.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The custom accumulator value.\n * @returns {*} Returns the accumulated value.\n * @example\n *\n * _.transform([2, 3, 4], function(result, n) {\n * result.push(n *= n);\n * return n % 2 == 0;\n * }, []);\n * // => [4, 9]\n *\n * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {\n * (result[value] || (result[value] = [])).push(key);\n * }, {});\n * // => { '1': ['a', 'c'], '2': ['b'] }\n */\n function transform(object, iteratee, accumulator) {\n var isArr = isArray(object),\n isArrLike = isArr || isBuffer(object) || isTypedArray(object);\n\n iteratee = getIteratee(iteratee, 4);\n if (accumulator == null) {\n var Ctor = object && object.constructor;\n if (isArrLike) {\n accumulator = isArr ? new Ctor : [];\n }\n else if (isObject(object)) {\n accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};\n }\n else {\n accumulator = {};\n }\n }\n (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) {\n return iteratee(accumulator, value, index, object);\n });\n return accumulator;\n }\n\n /**\n * Removes the property at `path` of `object`.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to unset.\n * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 7 } }] };\n * _.unset(object, 'a[0].b.c');\n * // => true\n *\n * console.log(object);\n * // => { 'a': [{ 'b': {} }] };\n *\n * _.unset(object, ['a', '0', 'b', 'c']);\n * // => true\n *\n * console.log(object);\n * // => { 'a': [{ 'b': {} }] };\n */\n function unset(object, path) {\n return object == null ? true : baseUnset(object, path);\n }\n\n /**\n * This method is like `_.set` except that accepts `updater` to produce the\n * value to set. Use `_.updateWith` to customize `path` creation. The `updater`\n * is invoked with one argument: (value).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {Function} updater The function to produce the updated value.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.update(object, 'a[0].b.c', function(n) { return n * n; });\n * console.log(object.a[0].b.c);\n * // => 9\n *\n * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });\n * console.log(object.x[0].y.z);\n * // => 0\n */\n function update(object, path, updater) {\n return object == null ? object : baseUpdate(object, path, castFunction(updater));\n }\n\n /**\n * This method is like `_.update` except that it accepts `customizer` which is\n * invoked to produce the objects of `path`. If `customizer` returns `undefined`\n * path creation is handled by the method instead. The `customizer` is invoked\n * with three arguments: (nsValue, key, nsObject).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {Function} updater The function to produce the updated value.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {};\n *\n * _.updateWith(object, '[0][1]', _.constant('a'), Object);\n * // => { '0': { '1': 'a' } }\n */\n function updateWith(object, path, updater, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);\n }\n\n /**\n * Creates an array of the own enumerable string keyed property values of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property values.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.values(new Foo);\n * // => [1, 2] (iteration order is not guaranteed)\n *\n * _.values('hi');\n * // => ['h', 'i']\n */\n function values(object) {\n return object == null ? [] : baseValues(object, keys(object));\n }\n\n /**\n * Creates an array of the own and inherited enumerable string keyed property\n * values of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property values.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.valuesIn(new Foo);\n * // => [1, 2, 3] (iteration order is not guaranteed)\n */\n function valuesIn(object) {\n return object == null ? [] : baseValues(object, keysIn(object));\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Clamps `number` within the inclusive `lower` and `upper` bounds.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Number\n * @param {number} number The number to clamp.\n * @param {number} [lower] The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the clamped number.\n * @example\n *\n * _.clamp(-10, -5, 5);\n * // => -5\n *\n * _.clamp(10, -5, 5);\n * // => 5\n */\n function clamp(number, lower, upper) {\n if (upper === undefined) {\n upper = lower;\n lower = undefined;\n }\n if (upper !== undefined) {\n upper = toNumber(upper);\n upper = upper === upper ? upper : 0;\n }\n if (lower !== undefined) {\n lower = toNumber(lower);\n lower = lower === lower ? lower : 0;\n }\n return baseClamp(toNumber(number), lower, upper);\n }\n\n /**\n * Checks if `n` is between `start` and up to, but not including, `end`. If\n * `end` is not specified, it's set to `start` with `start` then set to `0`.\n * If `start` is greater than `end` the params are swapped to support\n * negative ranges.\n *\n * @static\n * @memberOf _\n * @since 3.3.0\n * @category Number\n * @param {number} number The number to check.\n * @param {number} [start=0] The start of the range.\n * @param {number} end The end of the range.\n * @returns {boolean} Returns `true` if `number` is in the range, else `false`.\n * @see _.range, _.rangeRight\n * @example\n *\n * _.inRange(3, 2, 4);\n * // => true\n *\n * _.inRange(4, 8);\n * // => true\n *\n * _.inRange(4, 2);\n * // => false\n *\n * _.inRange(2, 2);\n * // => false\n *\n * _.inRange(1.2, 2);\n * // => true\n *\n * _.inRange(5.2, 4);\n * // => false\n *\n * _.inRange(-3, -2, -6);\n * // => true\n */\n function inRange(number, start, end) {\n start = toFinite(start);\n if (end === undefined) {\n end = start;\n start = 0;\n } else {\n end = toFinite(end);\n }\n number = toNumber(number);\n return baseInRange(number, start, end);\n }\n\n /**\n * Produces a random number between the inclusive `lower` and `upper` bounds.\n * If only one argument is provided a number between `0` and the given number\n * is returned. If `floating` is `true`, or either `lower` or `upper` are\n * floats, a floating-point number is returned instead of an integer.\n *\n * **Note:** JavaScript follows the IEEE-754 standard for resolving\n * floating-point values which can produce unexpected results.\n *\n * @static\n * @memberOf _\n * @since 0.7.0\n * @category Number\n * @param {number} [lower=0] The lower bound.\n * @param {number} [upper=1] The upper bound.\n * @param {boolean} [floating] Specify returning a floating-point number.\n * @returns {number} Returns the random number.\n * @example\n *\n * _.random(0, 5);\n * // => an integer between 0 and 5\n *\n * _.random(5);\n * // => also an integer between 0 and 5\n *\n * _.random(5, true);\n * // => a floating-point number between 0 and 5\n *\n * _.random(1.2, 5.2);\n * // => a floating-point number between 1.2 and 5.2\n */\n function random(lower, upper, floating) {\n if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) {\n upper = floating = undefined;\n }\n if (floating === undefined) {\n if (typeof upper == 'boolean') {\n floating = upper;\n upper = undefined;\n }\n else if (typeof lower == 'boolean') {\n floating = lower;\n lower = undefined;\n }\n }\n if (lower === undefined && upper === undefined) {\n lower = 0;\n upper = 1;\n }\n else {\n lower = toFinite(lower);\n if (upper === undefined) {\n upper = lower;\n lower = 0;\n } else {\n upper = toFinite(upper);\n }\n }\n if (lower > upper) {\n var temp = lower;\n lower = upper;\n upper = temp;\n }\n if (floating || lower % 1 || upper % 1) {\n var rand = nativeRandom();\n return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper);\n }\n return baseRandom(lower, upper);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the camel cased string.\n * @example\n *\n * _.camelCase('Foo Bar');\n * // => 'fooBar'\n *\n * _.camelCase('--foo-bar--');\n * // => 'fooBar'\n *\n * _.camelCase('__FOO_BAR__');\n * // => 'fooBar'\n */\n var camelCase = createCompounder(function(result, word, index) {\n word = word.toLowerCase();\n return result + (index ? capitalize(word) : word);\n });\n\n /**\n * Converts the first character of `string` to upper case and the remaining\n * to lower case.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to capitalize.\n * @returns {string} Returns the capitalized string.\n * @example\n *\n * _.capitalize('FRED');\n * // => 'Fred'\n */\n function capitalize(string) {\n return upperFirst(toString(string).toLowerCase());\n }\n\n /**\n * Deburrs `string` by converting\n * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)\n * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)\n * letters to basic Latin letters and removing\n * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to deburr.\n * @returns {string} Returns the deburred string.\n * @example\n *\n * _.deburr('déjà vu');\n * // => 'deja vu'\n */\n function deburr(string) {\n string = toString(string);\n return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');\n }\n\n /**\n * Checks if `string` ends with the given target string.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to inspect.\n * @param {string} [target] The string to search for.\n * @param {number} [position=string.length] The position to search up to.\n * @returns {boolean} Returns `true` if `string` ends with `target`,\n * else `false`.\n * @example\n *\n * _.endsWith('abc', 'c');\n * // => true\n *\n * _.endsWith('abc', 'b');\n * // => false\n *\n * _.endsWith('abc', 'b', 2);\n * // => true\n */\n function endsWith(string, target, position) {\n string = toString(string);\n target = baseToString(target);\n\n var length = string.length;\n position = position === undefined\n ? length\n : baseClamp(toInteger(position), 0, length);\n\n var end = position;\n position -= target.length;\n return position >= 0 && string.slice(position, end) == target;\n }\n\n /**\n * Converts the characters \"&\", \"<\", \">\", '\"', and \"'\" in `string` to their\n * corresponding HTML entities.\n *\n * **Note:** No other characters are escaped. To escape additional\n * characters use a third-party library like [_he_](https://mths.be/he).\n *\n * Though the \">\" character is escaped for symmetry, characters like\n * \">\" and \"/\" don't need escaping in HTML and have no special meaning\n * unless they're part of a tag or unquoted attribute value. See\n * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)\n * (under \"semi-related fun fact\") for more details.\n *\n * When working with HTML you should always\n * [quote attribute values](http://wonko.com/post/html-escaping) to reduce\n * XSS vectors.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category String\n * @param {string} [string=''] The string to escape.\n * @returns {string} Returns the escaped string.\n * @example\n *\n * _.escape('fred, barney, & pebbles');\n * // => 'fred, barney, & pebbles'\n */\n function escape(string) {\n string = toString(string);\n return (string && reHasUnescapedHtml.test(string))\n ? string.replace(reUnescapedHtml, escapeHtmlChar)\n : string;\n }\n\n /**\n * Escapes the `RegExp` special characters \"^\", \"$\", \"\\\", \".\", \"*\", \"+\",\n * \"?\", \"(\", \")\", \"[\", \"]\", \"{\", \"}\", and \"|\" in `string`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to escape.\n * @returns {string} Returns the escaped string.\n * @example\n *\n * _.escapeRegExp('[lodash](https://lodash.com/)');\n * // => '\\[lodash\\]\\(https://lodash\\.com/\\)'\n */\n function escapeRegExp(string) {\n string = toString(string);\n return (string && reHasRegExpChar.test(string))\n ? string.replace(reRegExpChar, '\\\\$&')\n : string;\n }\n\n /**\n * Converts `string` to\n * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the kebab cased string.\n * @example\n *\n * _.kebabCase('Foo Bar');\n * // => 'foo-bar'\n *\n * _.kebabCase('fooBar');\n * // => 'foo-bar'\n *\n * _.kebabCase('__FOO_BAR__');\n * // => 'foo-bar'\n */\n var kebabCase = createCompounder(function(result, word, index) {\n return result + (index ? '-' : '') + word.toLowerCase();\n });\n\n /**\n * Converts `string`, as space separated words, to lower case.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the lower cased string.\n * @example\n *\n * _.lowerCase('--Foo-Bar--');\n * // => 'foo bar'\n *\n * _.lowerCase('fooBar');\n * // => 'foo bar'\n *\n * _.lowerCase('__FOO_BAR__');\n * // => 'foo bar'\n */\n var lowerCase = createCompounder(function(result, word, index) {\n return result + (index ? ' ' : '') + word.toLowerCase();\n });\n\n /**\n * Converts the first character of `string` to lower case.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the converted string.\n * @example\n *\n * _.lowerFirst('Fred');\n * // => 'fred'\n *\n * _.lowerFirst('FRED');\n * // => 'fRED'\n */\n var lowerFirst = createCaseFirst('toLowerCase');\n\n /**\n * Pads `string` on the left and right sides if it's shorter than `length`.\n * Padding characters are truncated if they can't be evenly divided by `length`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.pad('abc', 8);\n * // => ' abc '\n *\n * _.pad('abc', 8, '_-');\n * // => '_-abc_-_'\n *\n * _.pad('abc', 3);\n * // => 'abc'\n */\n function pad(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n if (!length || strLength >= length) {\n return string;\n }\n var mid = (length - strLength) / 2;\n return (\n createPadding(nativeFloor(mid), chars) +\n string +\n createPadding(nativeCeil(mid), chars)\n );\n }\n\n /**\n * Pads `string` on the right side if it's shorter than `length`. Padding\n * characters are truncated if they exceed `length`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.padEnd('abc', 6);\n * // => 'abc '\n *\n * _.padEnd('abc', 6, '_-');\n * // => 'abc_-_'\n *\n * _.padEnd('abc', 3);\n * // => 'abc'\n */\n function padEnd(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n return (length && strLength < length)\n ? (string + createPadding(length - strLength, chars))\n : string;\n }\n\n /**\n * Pads `string` on the left side if it's shorter than `length`. Padding\n * characters are truncated if they exceed `length`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.padStart('abc', 6);\n * // => ' abc'\n *\n * _.padStart('abc', 6, '_-');\n * // => '_-_abc'\n *\n * _.padStart('abc', 3);\n * // => 'abc'\n */\n function padStart(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n return (length && strLength < length)\n ? (createPadding(length - strLength, chars) + string)\n : string;\n }\n\n /**\n * Converts `string` to an integer of the specified radix. If `radix` is\n * `undefined` or `0`, a `radix` of `10` is used unless `value` is a\n * hexadecimal, in which case a `radix` of `16` is used.\n *\n * **Note:** This method aligns with the\n * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category String\n * @param {string} string The string to convert.\n * @param {number} [radix=10] The radix to interpret `value` by.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.parseInt('08');\n * // => 8\n *\n * _.map(['6', '08', '10'], _.parseInt);\n * // => [6, 8, 10]\n */\n function parseInt(string, radix, guard) {\n if (guard || radix == null) {\n radix = 0;\n } else if (radix) {\n radix = +radix;\n }\n return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0);\n }\n\n /**\n * Repeats the given string `n` times.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to repeat.\n * @param {number} [n=1] The number of times to repeat the string.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {string} Returns the repeated string.\n * @example\n *\n * _.repeat('*', 3);\n * // => '***'\n *\n * _.repeat('abc', 2);\n * // => 'abcabc'\n *\n * _.repeat('abc', 0);\n * // => ''\n */\n function repeat(string, n, guard) {\n if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) {\n n = 1;\n } else {\n n = toInteger(n);\n }\n return baseRepeat(toString(string), n);\n }\n\n /**\n * Replaces matches for `pattern` in `string` with `replacement`.\n *\n * **Note:** This method is based on\n * [`String#replace`](https://mdn.io/String/replace).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to modify.\n * @param {RegExp|string} pattern The pattern to replace.\n * @param {Function|string} replacement The match replacement.\n * @returns {string} Returns the modified string.\n * @example\n *\n * _.replace('Hi Fred', 'Fred', 'Barney');\n * // => 'Hi Barney'\n */\n function replace() {\n var args = arguments,\n string = toString(args[0]);\n\n return args.length < 3 ? string : string.replace(args[1], args[2]);\n }\n\n /**\n * Converts `string` to\n * [snake case](https://en.wikipedia.org/wiki/Snake_case).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the snake cased string.\n * @example\n *\n * _.snakeCase('Foo Bar');\n * // => 'foo_bar'\n *\n * _.snakeCase('fooBar');\n * // => 'foo_bar'\n *\n * _.snakeCase('--FOO-BAR--');\n * // => 'foo_bar'\n */\n var snakeCase = createCompounder(function(result, word, index) {\n return result + (index ? '_' : '') + word.toLowerCase();\n });\n\n /**\n * Splits `string` by `separator`.\n *\n * **Note:** This method is based on\n * [`String#split`](https://mdn.io/String/split).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to split.\n * @param {RegExp|string} separator The separator pattern to split by.\n * @param {number} [limit] The length to truncate results to.\n * @returns {Array} Returns the string segments.\n * @example\n *\n * _.split('a-b-c', '-', 2);\n * // => ['a', 'b']\n */\n function split(string, separator, limit) {\n if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {\n separator = limit = undefined;\n }\n limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;\n if (!limit) {\n return [];\n }\n string = toString(string);\n if (string && (\n typeof separator == 'string' ||\n (separator != null && !isRegExp(separator))\n )) {\n separator = baseToString(separator);\n if (!separator && hasUnicode(string)) {\n return castSlice(stringToArray(string), 0, limit);\n }\n }\n return string.split(separator, limit);\n }\n\n /**\n * Converts `string` to\n * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).\n *\n * @static\n * @memberOf _\n * @since 3.1.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the start cased string.\n * @example\n *\n * _.startCase('--foo-bar--');\n * // => 'Foo Bar'\n *\n * _.startCase('fooBar');\n * // => 'Foo Bar'\n *\n * _.startCase('__FOO_BAR__');\n * // => 'FOO BAR'\n */\n var startCase = createCompounder(function(result, word, index) {\n return result + (index ? ' ' : '') + upperFirst(word);\n });\n\n /**\n * Checks if `string` starts with the given target string.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to inspect.\n * @param {string} [target] The string to search for.\n * @param {number} [position=0] The position to search from.\n * @returns {boolean} Returns `true` if `string` starts with `target`,\n * else `false`.\n * @example\n *\n * _.startsWith('abc', 'a');\n * // => true\n *\n * _.startsWith('abc', 'b');\n * // => false\n *\n * _.startsWith('abc', 'b', 1);\n * // => true\n */\n function startsWith(string, target, position) {\n string = toString(string);\n position = position == null\n ? 0\n : baseClamp(toInteger(position), 0, string.length);\n\n target = baseToString(target);\n return string.slice(position, position + target.length) == target;\n }\n\n /**\n * Creates a compiled template function that can interpolate data properties\n * in \"interpolate\" delimiters, HTML-escape interpolated data properties in\n * \"escape\" delimiters, and execute JavaScript in \"evaluate\" delimiters. Data\n * properties may be accessed as free variables in the template. If a setting\n * object is given, it takes precedence over `_.templateSettings` values.\n *\n * **Note:** In the development build `_.template` utilizes\n * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)\n * for easier debugging.\n *\n * For more information on precompiling templates see\n * [lodash's custom builds documentation](https://lodash.com/custom-builds).\n *\n * For more information on Chrome extension sandboxes see\n * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category String\n * @param {string} [string=''] The template string.\n * @param {Object} [options={}] The options object.\n * @param {RegExp} [options.escape=_.templateSettings.escape]\n * The HTML \"escape\" delimiter.\n * @param {RegExp} [options.evaluate=_.templateSettings.evaluate]\n * The \"evaluate\" delimiter.\n * @param {Object} [options.imports=_.templateSettings.imports]\n * An object to import into the template as free variables.\n * @param {RegExp} [options.interpolate=_.templateSettings.interpolate]\n * The \"interpolate\" delimiter.\n * @param {string} [options.sourceURL='lodash.templateSources[n]']\n * The sourceURL of the compiled template.\n * @param {string} [options.variable='obj']\n * The data object variable name.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the compiled template function.\n * @example\n *\n * // Use the \"interpolate\" delimiter to create a compiled template.\n * var compiled = _.template('hello <%= user %>!');\n * compiled({ 'user': 'fred' });\n * // => 'hello fred!'\n *\n * // Use the HTML \"escape\" delimiter to escape data property values.\n * var compiled = _.template('<%- value %> ');\n * compiled({ 'value': '`;\n}\n\nfunction v1_result_adapter(callback) {\n if (callback == null) {\n return undefined;\n }\n return function (result) {\n if (result.error != null) {\n return callback(result.error);\n }\n return callback(void 0, result);\n };\n}\n\nfunction v1_adapter(name, num_pass_args, v1) {\n return function (...args) {\n let pass_args = take(args, num_pass_args);\n let options = args[num_pass_args];\n let callback = args[num_pass_args + 1];\n if ((callback == null) && isFunction(options)) {\n callback = options;\n options = {};\n }\n callback = v1_result_adapter(callback);\n args = pass_args.concat([callback, options]);\n return v1[name].apply(this, args);\n };\n}\n\nfunction v1_adapters(exports, v1, mapping) {\n return Object.keys(mapping).map((name) => {\n let num_pass_args = mapping[name];\n exports[name] = v1_adapter(name, num_pass_args, v1);\n return exports[name];\n });\n}\n\nfunction as_safe_bool(value) {\n if (value == null) {\n return void 0;\n }\n if (value === true || value === 'true' || value === '1') {\n value = 1;\n }\n if (value === false || value === 'false' || value === '0') {\n value = 0;\n }\n return value;\n}\n\nconst NUMBER_PATTERN = \"([0-9]*)\\\\.([0-9]+)|([0-9]+)\";\n\nconst OFFSET_ANY_PATTERN = `(${NUMBER_PATTERN})([%pP])?`;\nconst RANGE_VALUE_RE = RegExp(`^${OFFSET_ANY_PATTERN}$`);\nconst OFFSET_ANY_PATTERN_RE = RegExp(`(${OFFSET_ANY_PATTERN})\\\\.\\\\.(${OFFSET_ANY_PATTERN})`);\n\n// Split a range into the start and end values\nfunction split_range(range) { // :nodoc:\n switch (range.constructor) {\n case String:\n if (!OFFSET_ANY_PATTERN_RE.test(range)) {\n return range;\n }\n return range.split(\"..\");\n case Array:\n return [first(range), last(range)];\n default:\n return [null, null];\n }\n}\n\nfunction norm_range_value(value) { // :nodoc:\n let offset = String(value).match(RANGE_VALUE_RE);\n if (offset) {\n let modifier = offset[5] ? 'p' : '';\n value = `${offset[1] || offset[4]}${modifier}`;\n }\n return value;\n}\n\n/**\n * A video codec parameter can be either a String or a Hash.\n * @param {Object} param vc_[ : : []] \n * or { codec: 'h264', profile: 'basic', level: '3.1' }\n * @return {String} : : []] `;\n};\n\nfunction build_explicit_api_params(public_id, options = {}) {\n return [exports.build_upload_params(extend({}, {public_id}, options))];\n}\n\nfunction generate_responsive_breakpoints_string(breakpoints) {\n if (breakpoints == null) {\n return null;\n }\n breakpoints = clone(breakpoints);\n if (!isArray(breakpoints)) {\n breakpoints = [breakpoints];\n }\n for (let j = 0; j < breakpoints.length; j++) {\n let breakpoint_settings = breakpoints[j];\n if (breakpoint_settings != null) {\n if (breakpoint_settings.transformation) {\n breakpoint_settings.transformation = utils.generate_transformation_string(\n clone(breakpoint_settings.transformation)\n );\n }\n }\n }\n return JSON.stringify(breakpoints);\n}\n\nfunction build_streaming_profiles_param(options = {}) {\n let params = pickOnlyExistingValues(options, \"display_name\", \"representations\");\n if (isArray(params.representations)) {\n params.representations = JSON.stringify(params.representations.map(\n r => ({\n transformation: utils.generate_transformation_string(r.transformation)\n })\n ));\n }\n return params;\n}\n\nfunction hashToParameters(hash) {\n return entries(hash).reduce((parameters, [key, value]) => {\n if (isArray(value)) {\n key = key.endsWith('[]') ? key : key + '[]';\n const items = value.map(v => [key, v]);\n parameters = parameters.concat(items);\n } else {\n parameters.push([key, value]);\n }\n return parameters;\n }, []);\n}\n\n/**\n * Convert a hash of values to a URI query string.\n * Array values are spread as individual parameters.\n * @param {object} hash Key-value parameters\n * @return {string} A URI query string.\n */\nfunction hashToQuery(hash) {\n return hashToParameters(hash).map(\n ([key, value]) => `${querystring.escape(key)}=${querystring.escape(value)}`\n ).join('&');\n}\n\n/**\n * Verify that the parameter `value` is defined and it's string value is not zero.\n * } data\n * @param {function(*):*} [modifier] called with the array before the array is stringified\n * @return {String|null} a JSON array string or `null` if data is `null`\n */\n\nfunction jsonArrayParam(data, modifier) {\n if (!data) {\n return null;\n }\n if (isString(data)) {\n data = JSON.parse(data);\n }\n if (!isArray(data)) {\n data = [data];\n }\n if (isFunction(modifier)) {\n data = modifier(data);\n }\n return JSON.stringify(data);\n}\n\n/**\n * Empty function - do nothing\n *\n */\nexports.NOP = function () {\n};\nexports.generate_auth_token = generate_auth_token;\nexports.getUserAgent = getUserAgent;\nexports.build_upload_params = build_upload_params;\nexports.build_multi_and_sprite_params = build_multi_and_sprite_params;\nexports.api_download_url = api_download_url;\nexports.timestamp = () => Math.floor(new Date().getTime() / 1000);\nexports.option_consume = consumeOption; // for backwards compatibility\nexports.build_array = toArray; // for backwards compatibility\nexports.encode_double_array = encodeDoubleArray;\nexports.encode_key_value = encode_key_value;\nexports.encode_context = encode_context;\nexports.build_eager = build_eager;\nexports.build_custom_headers = build_custom_headers;\nexports.generate_transformation_string = generate_transformation_string;\nexports.updateable_resource_params = updateable_resource_params;\nexports.extractUrlParams = extractUrlParams;\nexports.extractTransformationParams = extractTransformationParams;\nexports.patchFetchFormat = patchFetchFormat;\nexports.url = url;\nexports.video_url = video_url;\nexports.video_thumbnail_url = video_thumbnail_url;\nexports.api_url = api_url;\nexports.random_public_id = random_public_id;\nexports.signed_preloaded_image = signed_preloaded_image;\nexports.api_sign_request = api_sign_request;\nexports.clear_blank = clear_blank;\nexports.merge = merge;\nexports.sign_request = sign_request;\nexports.webhook_signature = webhook_signature;\nexports.verifyNotificationSignature = verifyNotificationSignature;\nexports.process_request_params = process_request_params;\nexports.private_download_url = private_download_url;\nexports.zip_download_url = zip_download_url;\nexports.download_archive_url = download_archive_url;\nexports.download_zip_url = download_zip_url;\nexports.cloudinary_js_config = cloudinary_js_config;\nexports.v1_adapters = v1_adapters;\nexports.as_safe_bool = as_safe_bool;\nexports.archive_params = archive_params;\nexports.build_explicit_api_params = build_explicit_api_params;\nexports.generate_responsive_breakpoints_string = generate_responsive_breakpoints_string;\nexports.build_streaming_profiles_param = build_streaming_profiles_param;\nexports.hashToParameters = hashToParameters;\nexports.present = present;\nexports.only = pickOnlyExistingValues; // for backwards compatibility\nexports.pickOnlyExistingValues = pickOnlyExistingValues;\nexports.jsonArrayParam = jsonArrayParam;\nexports.download_folder = download_folder;\nexports.base_api_url_v1 = base_api_url_v1_1;\nexports.base_api_url_v2 = base_api_url_v2;\nexports.download_backedup_asset = download_backedup_asset;\nexports.compute_hash = compute_hash;\nexports.build_distribution_domain = build_distribution_domain;\nexports.sort_object_by_key = sort_object_by_key;\n\n// was exported before, so kept for backwards compatibility\nexports.DEFAULT_POSTER_OPTIONS = DEFAULT_POSTER_OPTIONS;\nexports.DEFAULT_VIDEO_SOURCE_TYPES = DEFAULT_VIDEO_SOURCE_TYPES;\n\nObject.assign(module.exports, {\n normalize_expression,\n at,\n clone,\n extend,\n filter,\n includes,\n isArray,\n isEmpty,\n isNumber,\n isObject,\n isRemoteUrl,\n isString,\n isUndefined,\n keys: source => Object.keys(source),\n ensurePresenceOf\n});\n","const isString = require('lodash/isString');\n\n/**\n * Checks whether a given url or path is a local file\n * @param {string} url the url or path to the file\n * @returns {boolean} true if the given url is a remote location or data\n */\nfunction isRemoteUrl(url) {\n const SUBSTRING_LENGTH = 120;\n const urlSubstring = isString(url) && url.substring(0, SUBSTRING_LENGTH);\n return isString(url) && /^ftp:|^https?:|^gs:|^s3:|^data:([\\w-.]+\\/[\\w-.]+(\\+[\\w-.]+)?)?(;[\\w-.]+=[\\w-.]+)*;base64,([a-zA-Z0-9\\/+\\n=]+)$/.test(urlSubstring);\n}\n\nmodule.exports = isRemoteUrl;\n","/**\n * Deletes `option_name` from `options` and return the value if present.\n * If `options` doesn't contain `option_name` the default value is returned.\n * @param {Object} options a collection\n * @param {String} option_name the name (key) of the desired value\n * @param {*} [default_value] the value to return is option_name is missing\n */\n\nfunction consumeOption(options, option_name, default_value) {\n let result = options[option_name];\n delete options[option_name];\n return result != null ? result : default_value;\n}\n\nmodule.exports = consumeOption;\n","const isArray = require('lodash/isArray');\n\n/**\n * @desc Turns arguments that aren't arrays into arrays\n * @param arg\n * @returns { any | any[] }\n */\nfunction toArray(arg) {\n switch (true) {\n case arg == null:\n return [];\n case isArray(arg):\n return arg;\n default:\n return [arg];\n }\n}\n\nmodule.exports = toArray;\n","\nconst utils = require('./index');\nconst generateBreakpoints = require('./generateBreakpoints');\nconst Cache = require('../cache');\n\nconst isEmpty = utils.isEmpty;\n\n/**\n * Options used to generate the srcset attribute.\n * @typedef {object} srcset\n * @property {(number[]|string[])} [breakpoints] An array of breakpoints.\n * @property {number} [min_width] Minimal width of the srcset images.\n * @property {number} [max_width] Maximal width of the srcset images.\n * @property {number} [max_images] Number of srcset images to generate.\n * @property {object|string} [transformation] The transformation to use in the srcset urls.\n * @property {boolean} [sizes] Whether to calculate and add the sizes attribute.\n */\n\n/**\n * Helper function. Generates a single srcset item url\n *\n * @private\n * @param {string} public_id Public ID of the resource.\n * @param {number} width Width in pixels of the srcset item.\n * @param {object|string} transformation\n * @param {object} options Additional options.\n *\n * @return {string} Resulting URL of the item\n */\nfunction scaledUrl(public_id, width, transformation, options = {}) {\n let configParams = utils.extractUrlParams(options);\n transformation = transformation || options;\n configParams.raw_transformation = utils.generate_transformation_string([utils.extend({}, transformation), { crop: 'scale', width: width }]);\n\n return utils.url(public_id, configParams);\n}\n\n/**\n * If cache is enabled, get the breakpoints from the cache. If the values were not found in the cache,\n * or cache is not enabled, generate the values.\n * @param {srcset} srcset The srcset configuration parameters\n * @param {string} public_id\n * @param {object} options\n * @return {*|Array}\n */\nfunction getOrGenerateBreakpoints(public_id, srcset = {}, options = {}) {\n let breakpoints = [];\n if (srcset.useCache) {\n breakpoints = Cache.get(public_id, options);\n if (!breakpoints) {\n breakpoints = [];\n }\n } else {\n breakpoints = generateBreakpoints(srcset);\n }\n return breakpoints;\n}\n\n/**\n * Helper function. Generates srcset attribute value of the HTML img tag\n * @private\n *\n * @param {string} public_id Public ID of the resource\n * @param {number[]} breakpoints An array of breakpoints (in pixels)\n * @param {object} transformation The transformation\n * @param {object} options Includes html tag options, transformation options\n * @return {string} Resulting srcset attribute value\n */\nfunction generateSrcsetAttribute(public_id, breakpoints, transformation, options) {\n options = utils.clone(options);\n utils.patchFetchFormat(options);\n return breakpoints.map(width => `${scaledUrl(public_id, width, transformation, options)} ${width}w`).join(', ');\n}\n\n/**\n * Helper function. Generates sizes attribute value of the HTML img tag\n * @private\n * @param {number[]} breakpoints An array of breakpoints.\n * @return {string} Resulting sizes attribute value\n */\nfunction generateSizesAttribute(breakpoints = []) {\n return breakpoints.map(width => `(max-width: ${width}px) ${width}px`).join(', ');\n}\n\n/**\n * Helper function. Generates srcset and sizes attributes of the image tag\n *\n * Generated attributes are added to attributes argument\n *\n * @private\n * @param {string} publicId The public ID of the resource\n * @param {object} attributes Existing HTML attributes.\n * @param {srcset} srcsetData\n * @param {object} options Additional options.\n *\n * @return array The responsive attributes\n */\nfunction generateImageResponsiveAttributes(publicId, attributes = {}, srcsetData = {}, options = {}) {\n // Create both srcset and sizes here to avoid fetching breakpoints twice\n\n let responsiveAttributes = {};\n if (isEmpty(srcsetData)) {\n return responsiveAttributes;\n }\n\n const generateSizes = (!attributes.sizes && srcsetData.sizes === true);\n\n const generateSrcset = !attributes.srcset;\n if (generateSrcset || generateSizes) {\n let breakpoints = getOrGenerateBreakpoints(publicId, srcsetData, options);\n\n if (generateSrcset) {\n let transformation = srcsetData.transformation;\n let srcsetAttr = generateSrcsetAttribute(publicId, breakpoints, transformation, options);\n if (!isEmpty(srcsetAttr)) {\n responsiveAttributes.srcset = srcsetAttr;\n }\n }\n\n if (generateSizes) {\n let sizesAttr = generateSizesAttribute(breakpoints);\n if (!isEmpty(sizesAttr)) {\n responsiveAttributes.sizes = sizesAttr;\n }\n }\n }\n return responsiveAttributes;\n}\n\n/**\n * Generate a media query\n *\n * @private\n * @param {object} options configuration options\n * @param {number|string} options.min_width\n * @param {number|string} options.max_width\n * @return {string} a media query string\n */\nfunction generateMediaAttr(options = {}) {\n let mediaQuery = [];\n if (options.min_width != null) {\n mediaQuery.push(`(min-width: ${options.min_width}px)`);\n }\n if (options.max_width != null) {\n mediaQuery.push(`(max-width: ${options.max_width}px)`);\n }\n return mediaQuery.join(' and ');\n}\n\nmodule.exports = {\n srcsetUrl: scaledUrl,\n generateSrcsetAttribute,\n generateSizesAttribute,\n generateMediaAttr,\n generateImageResponsiveAttributes\n};\n","/* eslint-disable no-bitwise */\n// http://kevin.vanzonneveld.net\n// + original by: Webtoolkit.info (http://www.webtoolkit.info/)\n// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)\n// + improved by: sowberry\n// + tweaked by: Jack\n// + bugfixed by: Onno Marsman\n// + improved by: Yves Sucaet\n// + bugfixed by: Onno Marsman\n// + bugfixed by: Ulrich\n// + bugfixed by: Rafal Kukawski\n// + improved by: kirilloid\n// * example 1: utf8_encode('Kevin van Zonneveld')\n// * returns 1: 'Kevin van Zonneveld'\n\n/**\n * Encode the given string\n * @private\n * @param {string} argString the string to encode\n * @return {string}\n */\nmodule.exports = function utf8_encode(argString) {\n let c1, enc, n;\n if (argString == null) {\n return \"\";\n }\n let string = argString + \"\";\n let utftext = \"\";\n let start = 0;\n let end = 0;\n let stringl = string.length;\n n = 0;\n while (n < stringl) {\n c1 = string.charCodeAt(n);\n enc = null;\n if (c1 < 128) {\n end++;\n } else if (c1 > 127 && c1 < 2048) {\n enc = String.fromCharCode((c1 >> 6) | 192, (c1 & 63) | 128);\n } else {\n enc = String.fromCharCode((c1 >> 12) | 224, ((c1 >> 6) & 63) | 128, (c1 & 63) | 128);\n }\n if (enc !== null) {\n if (end > start) {\n utftext += string.slice(start, end);\n }\n utftext += enc;\n start = n + 1;\n end = start;\n }\n n++;\n }\n if (end > start) {\n utftext += string.slice(start, stringl);\n }\n return utftext;\n};\n","const api = require('../api');\nconst v1_adapters = require('../utils').v1_adapters;\n\nv1_adapters(exports, api, {\n ping: 0,\n usage: 0,\n resource_types: 0,\n resources: 0,\n resources_by_tag: 1,\n resources_by_context: 2,\n resources_by_moderation: 2,\n resource_by_asset_id: 1,\n resources_by_asset_ids: 1,\n resources_by_ids: 1,\n resources_by_asset_folder: 1,\n resource: 1,\n restore: 1,\n update: 1,\n delete_resources: 1,\n delete_resources_by_prefix: 1,\n delete_resources_by_tag: 1,\n delete_all_resources: 0,\n delete_derived_resources: 1,\n tags: 0,\n transformations: 0,\n transformation: 1,\n delete_transformation: 1,\n update_transformation: 2,\n create_transformation: 2,\n upload_presets: 0,\n upload_preset: 1,\n delete_upload_preset: 1,\n update_upload_preset: 1,\n create_upload_preset: 0,\n root_folders: 0,\n sub_folders: 1,\n delete_folder: 1,\n rename_folder: 2,\n create_folder: 1,\n upload_mappings: 0,\n upload_mapping: 1,\n delete_upload_mapping: 1,\n update_upload_mapping: 1,\n create_upload_mapping: 1,\n list_streaming_profiles: 0,\n get_streaming_profile: 1,\n delete_streaming_profile: 1,\n update_streaming_profile: 1,\n create_streaming_profile: 1,\n publish_by_ids: 1,\n publish_by_tag: 1,\n publish_by_prefix: 1,\n update_resources_access_mode_by_prefix: 2,\n update_resources_access_mode_by_tag: 2,\n update_resources_access_mode_by_ids: 2,\n search: 1,\n search_folders: 1,\n visual_search: 1,\n delete_derived_by_transformation: 2,\n add_metadata_field: 1,\n list_metadata_fields: 1,\n delete_metadata_field: 1,\n metadata_field_by_field_id: 1,\n update_metadata_field: 2,\n update_metadata_field_datasource: 2,\n delete_datasource_entries: 2,\n restore_metadata_field_datasource: 2,\n order_metadata_field_datasource: 3,\n reorder_metadata_fields: 2,\n list_metadata_rules: 1,\n add_metadata_rule: 1,\n delete_metadata_rule: 1,\n update_metadata_rule: 2,\n add_related_assets: 2,\n add_related_assets_by_asset_id: 2,\n delete_related_assets: 2,\n delete_related_assets_by_asset_id: 2,\n config: 0\n});\n","const v1 = require('../cloudinary');\nconst api = require('./api');\nconst uploader = require('./uploader');\nconst search = require('./search');\nconst search_folders = require('./search_folders');\n\nconst v2 = {\n ...v1,\n api,\n uploader,\n search,\n search_folders\n};\nmodule.exports = v2;\n","const api = require('./api');\nconst config = require('../config');\nconst {\n isEmpty,\n isNumber,\n compute_hash,\n build_distribution_domain,\n clear_blank,\n sort_object_by_key\n} = require('../utils');\nconst {base64Encode} = require('../utils/encoding/base64Encode');\n\nconst Search = class Search {\n constructor() {\n this.query_hash = {\n sort_by: [],\n aggregate: [],\n with_field: [],\n fields: []\n };\n this._ttl = 300;\n }\n\n static instance() {\n return new Search();\n }\n\n static expression(value) {\n return this.instance().expression(value);\n }\n\n static max_results(value) {\n return this.instance().max_results(value);\n }\n\n static next_cursor(value) {\n return this.instance().next_cursor(value);\n }\n\n static aggregate(value) {\n return this.instance().aggregate(value);\n }\n\n static with_field(value) {\n return this.instance().with_field(value);\n }\n\n static fields(value) {\n return this.instance().fields(value);\n }\n\n static sort_by(field_name, dir = 'asc') {\n return this.instance().sort_by(field_name, dir);\n }\n\n static ttl(newTtl) {\n return this.instance().ttl(newTtl);\n }\n\n static execute(options, callback) {\n return this.instance().execute(options, callback);\n }\n\n expression(value) {\n this.query_hash.expression = value;\n return this;\n }\n\n max_results(value) {\n this.query_hash.max_results = value;\n return this;\n }\n\n next_cursor(value) {\n this.query_hash.next_cursor = value;\n return this;\n }\n\n aggregate(value) {\n const found = this.query_hash.aggregate.find(v => v === value);\n\n if (!found) {\n this.query_hash.aggregate.push(value);\n }\n\n return this;\n }\n\n with_field(value) {\n if (Array.isArray(value)) {\n this.query_hash.with_field = this.query_hash.with_field.concat(value);\n } else {\n this.query_hash.with_field.push(value);\n }\n\n this.query_hash.with_field = Array.from(new Set(this.query_hash.with_field));\n return this;\n }\n\n fields(value) {\n if (Array.isArray(value)) {\n this.query_hash.fields = this.query_hash.fields.concat(value);\n } else {\n this.query_hash.fields.push(value);\n }\n\n this.query_hash.fields = Array.from(new Set(this.query_hash.fields));\n return this;\n }\n\n sort_by(field_name, dir = \"desc\") {\n let sort_bucket;\n sort_bucket = {};\n sort_bucket[field_name] = dir;\n\n // Check if this field name is already stored in the hash\n const previously_sorted_obj = this.query_hash.sort_by.find((sort_by) => sort_by[field_name]);\n\n // Since objects are references in Javascript, we can update the reference we found\n // For example,\n if (previously_sorted_obj) {\n previously_sorted_obj[field_name] = dir;\n } else {\n this.query_hash.sort_by.push(sort_bucket);\n }\n\n return this;\n }\n\n ttl(newTtl) {\n if (isNumber(newTtl)) {\n this._ttl = newTtl;\n return this;\n }\n\n throw new Error('New TTL value has to be a Number.');\n }\n\n to_query() {\n Object.keys(this.query_hash).forEach((k) => {\n let v = this.query_hash[k];\n if (!isNumber(v) && isEmpty(v)) {\n delete this.query_hash[k];\n }\n });\n return this.query_hash;\n }\n\n execute(options, callback) {\n if (callback === null) {\n callback = options;\n }\n options = options || {};\n return api.search(this.to_query(), options, callback);\n }\n\n to_url(ttl, next_cursor, options = {}) {\n const apiSecret = 'api_secret' in options ? options.api_secret : config().api_secret;\n if (!apiSecret) {\n throw new Error('Must supply api_secret');\n }\n\n const urlTtl = ttl || this._ttl;\n\n const query = this.to_query();\n\n let urlCursor = next_cursor;\n if (query.next_cursor && !next_cursor) {\n urlCursor = query.next_cursor;\n }\n delete query.next_cursor;\n\n const dataOrderedByKey = sort_object_by_key(clear_blank(query));\n const encodedQuery = base64Encode(JSON.stringify(dataOrderedByKey));\n\n const urlPrefix = build_distribution_domain(options.source, options);\n\n const signature = compute_hash(`${urlTtl}${encodedQuery}${apiSecret}`, 'sha256', 'hex');\n\n const urlWithoutCursor = `${urlPrefix}/search/${signature}/${urlTtl}/${encodedQuery}`;\n return urlCursor ? `${urlWithoutCursor}/${urlCursor}` : urlWithoutCursor;\n }\n};\n\nmodule.exports = Search;\n","const Search = require('./search');\nconst api = require('./api');\n\nconst SearchFolders = class SearchFolders extends Search {\n constructor() {\n super();\n }\n\n static instance() {\n return new SearchFolders();\n }\n\n execute(options, callback) {\n if (callback === null) {\n callback = options;\n }\n options = options || {};\n return api.search_folders(this.to_query(), options, callback);\n }\n};\n\nmodule.exports = SearchFolders;\n","const uploader = require('../uploader');\nconst v1_adapters = require('../utils').v1_adapters;\n\nv1_adapters(exports, uploader, {\n unsigned_upload_stream: 1,\n upload_stream: 0,\n unsigned_upload: 2,\n upload: 1,\n upload_large_part: 0,\n upload_large: 1,\n upload_chunked: 1,\n upload_chunked_stream: 0,\n explicit: 1,\n destroy: 1,\n rename: 2,\n text: 1,\n generate_sprite: 1,\n multi: 1,\n explode: 1,\n add_tag: 2,\n remove_tag: 2,\n remove_all_tags: 1,\n add_context: 2,\n remove_all_context: 1,\n replace_tag: 2,\n create_archive: 0,\n create_zip: 0,\n update_metadata: 2\n});\n\nexports.direct_upload = uploader.direct_upload;\nexports.upload_tag_params = uploader.upload_tag_params;\nexports.upload_url = uploader.upload_url;\nexports.image_upload_tag = uploader.image_upload_tag;\nexports.unsigned_image_upload_tag = uploader.unsigned_image_upload_tag;\nexports.create_slideshow = uploader.create_slideshow;\nexports.download_generated_sprite = uploader.download_generated_sprite;\nexports.download_multi = uploader.download_multi;\n","var balanced = require('balanced-match');\n\nmodule.exports = expandTop;\n\nvar escSlash = '\\0SLASH'+Math.random()+'\\0';\nvar escOpen = '\\0OPEN'+Math.random()+'\\0';\nvar escClose = '\\0CLOSE'+Math.random()+'\\0';\nvar escComma = '\\0COMMA'+Math.random()+'\\0';\nvar escPeriod = '\\0PERIOD'+Math.random()+'\\0';\n\nfunction numeric(str) {\n return parseInt(str, 10) == str\n ? parseInt(str, 10)\n : str.charCodeAt(0);\n}\n\nfunction escapeBraces(str) {\n return str.split('\\\\\\\\').join(escSlash)\n .split('\\\\{').join(escOpen)\n .split('\\\\}').join(escClose)\n .split('\\\\,').join(escComma)\n .split('\\\\.').join(escPeriod);\n}\n\nfunction unescapeBraces(str) {\n return str.split(escSlash).join('\\\\')\n .split(escOpen).join('{')\n .split(escClose).join('}')\n .split(escComma).join(',')\n .split(escPeriod).join('.');\n}\n\n\n// Basically just str.split(\",\"), but handling cases\n// where we have nested braced sections, which should be\n// treated as individual members, like {a,{b,c},d}\nfunction parseCommaParts(str) {\n if (!str)\n return [''];\n\n var parts = [];\n var m = balanced('{', '}', str);\n\n if (!m)\n return str.split(',');\n\n var pre = m.pre;\n var body = m.body;\n var post = m.post;\n var p = pre.split(',');\n\n p[p.length-1] += '{' + body + '}';\n var postParts = parseCommaParts(post);\n if (post.length) {\n p[p.length-1] += postParts.shift();\n p.push.apply(p, postParts);\n }\n\n parts.push.apply(parts, p);\n\n return parts;\n}\n\nfunction expandTop(str) {\n if (!str)\n return [];\n\n // I don't know why Bash 4.3 does this, but it does.\n // Anything starting with {} will have the first two bytes preserved\n // but *only* at the top level, so {},a}b will not expand to anything,\n // but a{},b}c will be expanded to [a}c,abc].\n // One could argue that this is a bug in Bash, but since the goal of\n // this module is to match Bash's rules, we escape a leading {}\n if (str.substr(0, 2) === '{}') {\n str = '\\\\{\\\\}' + str.substr(2);\n }\n\n return expand(escapeBraces(str), true).map(unescapeBraces);\n}\n\nfunction embrace(str) {\n return '{' + str + '}';\n}\nfunction isPadded(el) {\n return /^-?0\\d/.test(el);\n}\n\nfunction lte(i, y) {\n return i <= y;\n}\nfunction gte(i, y) {\n return i >= y;\n}\n\nfunction expand(str, isTop) {\n var expansions = [];\n\n var m = balanced('{', '}', str);\n if (!m) return [str];\n\n // no need to expand pre, since it is guaranteed to be free of brace-sets\n var pre = m.pre;\n var post = m.post.length\n ? expand(m.post, false)\n : [''];\n\n if (/\\$$/.test(m.pre)) { \n for (var k = 0; k < post.length; k++) {\n var expansion = pre+ '{' + m.body + '}' + post[k];\n expansions.push(expansion);\n }\n } else {\n var isNumericSequence = /^-?\\d+\\.\\.-?\\d+(?:\\.\\.-?\\d+)?$/.test(m.body);\n var isAlphaSequence = /^[a-zA-Z]\\.\\.[a-zA-Z](?:\\.\\.-?\\d+)?$/.test(m.body);\n var isSequence = isNumericSequence || isAlphaSequence;\n var isOptions = m.body.indexOf(',') >= 0;\n if (!isSequence && !isOptions) {\n // {a},b}\n if (m.post.match(/,.*\\}/)) {\n str = m.pre + '{' + m.body + escClose + m.post;\n return expand(str);\n }\n return [str];\n }\n\n var n;\n if (isSequence) {\n n = m.body.split(/\\.\\./);\n } else {\n n = parseCommaParts(m.body);\n if (n.length === 1) {\n // x{{a,b}}y ==> x{a}y x{b}y\n n = expand(n[0], false).map(embrace);\n if (n.length === 1) {\n return post.map(function(p) {\n return m.pre + n[0] + p;\n });\n }\n }\n }\n\n // at this point, n is the parts, and we know it's not a comma set\n // with a single entry.\n var N;\n\n if (isSequence) {\n var x = numeric(n[0]);\n var y = numeric(n[1]);\n var width = Math.max(n[0].length, n[1].length)\n var incr = n.length == 3\n ? Math.abs(numeric(n[2]))\n : 1;\n var test = lte;\n var reverse = y < x;\n if (reverse) {\n incr *= -1;\n test = gte;\n }\n var pad = n.some(isPadded);\n\n N = [];\n\n for (var i = x; test(i, y); i += incr) {\n var c;\n if (isAlphaSequence) {\n c = String.fromCharCode(i);\n if (c === '\\\\')\n c = '';\n } else {\n c = String(i);\n if (pad) {\n var need = width - c.length;\n if (need > 0) {\n var z = new Array(need + 1).join('0');\n if (i < 0)\n c = '-' + z + c.slice(1);\n else\n c = z + c;\n }\n }\n }\n N.push(c);\n }\n } else {\n N = [];\n\n for (var j = 0; j < n.length; j++) {\n N.push.apply(N, expand(n[j], false));\n }\n }\n\n for (var j = 0; j < N.length; j++) {\n for (var k = 0; k < post.length; k++) {\n var expansion = pre + N[j] + post[k];\n if (!isTop || isSequence || expansion)\n expansions.push(expansion);\n }\n }\n }\n\n return expansions;\n}\n\n","/*!\n * is-extglob \n *\n * Copyright (c) 2014-2016, Jon Schlinkert.\n * Licensed under the MIT License.\n */\n\nmodule.exports = function isExtglob(str) {\n if (typeof str !== 'string' || str === '') {\n return false;\n }\n\n var match;\n while ((match = /(\\\\).|([@?!+*]\\(.*\\))/g.exec(str))) {\n if (match[2]) return true;\n str = str.slice(match.index + match[0].length);\n }\n\n return false;\n};\n","/*!\n * is-glob \n *\n * Copyright (c) 2014-2017, Jon Schlinkert.\n * Released under the MIT License.\n */\n\nvar isExtglob = require('is-extglob');\nvar chars = { '{': '}', '(': ')', '[': ']'};\nvar strictCheck = function(str) {\n if (str[0] === '!') {\n return true;\n }\n var index = 0;\n var pipeIndex = -2;\n var closeSquareIndex = -2;\n var closeCurlyIndex = -2;\n var closeParenIndex = -2;\n var backSlashIndex = -2;\n while (index < str.length) {\n if (str[index] === '*') {\n return true;\n }\n\n if (str[index + 1] === '?' && /[\\].+)]/.test(str[index])) {\n return true;\n }\n\n if (closeSquareIndex !== -1 && str[index] === '[' && str[index + 1] !== ']') {\n if (closeSquareIndex < index) {\n closeSquareIndex = str.indexOf(']', index);\n }\n if (closeSquareIndex > index) {\n if (backSlashIndex === -1 || backSlashIndex > closeSquareIndex) {\n return true;\n }\n backSlashIndex = str.indexOf('\\\\', index);\n if (backSlashIndex === -1 || backSlashIndex > closeSquareIndex) {\n return true;\n }\n }\n }\n\n if (closeCurlyIndex !== -1 && str[index] === '{' && str[index + 1] !== '}') {\n closeCurlyIndex = str.indexOf('}', index);\n if (closeCurlyIndex > index) {\n backSlashIndex = str.indexOf('\\\\', index);\n if (backSlashIndex === -1 || backSlashIndex > closeCurlyIndex) {\n return true;\n }\n }\n }\n\n if (closeParenIndex !== -1 && str[index] === '(' && str[index + 1] === '?' && /[:!=]/.test(str[index + 2]) && str[index + 3] !== ')') {\n closeParenIndex = str.indexOf(')', index);\n if (closeParenIndex > index) {\n backSlashIndex = str.indexOf('\\\\', index);\n if (backSlashIndex === -1 || backSlashIndex > closeParenIndex) {\n return true;\n }\n }\n }\n\n if (pipeIndex !== -1 && str[index] === '(' && str[index + 1] !== '|') {\n if (pipeIndex < index) {\n pipeIndex = str.indexOf('|', index);\n }\n if (pipeIndex !== -1 && str[pipeIndex + 1] !== ')') {\n closeParenIndex = str.indexOf(')', pipeIndex);\n if (closeParenIndex > pipeIndex) {\n backSlashIndex = str.indexOf('\\\\', pipeIndex);\n if (backSlashIndex === -1 || backSlashIndex > closeParenIndex) {\n return true;\n }\n }\n }\n }\n\n if (str[index] === '\\\\') {\n var open = str[index + 1];\n index += 2;\n var close = chars[open];\n\n if (close) {\n var n = str.indexOf(close, index);\n if (n !== -1) {\n index = n + 1;\n }\n }\n\n if (str[index] === '!') {\n return true;\n }\n } else {\n index++;\n }\n }\n return false;\n};\n\nvar relaxedCheck = function(str) {\n if (str[0] === '!') {\n return true;\n }\n var index = 0;\n while (index < str.length) {\n if (/[*?{}()[\\]]/.test(str[index])) {\n return true;\n }\n\n if (str[index] === '\\\\') {\n var open = str[index + 1];\n index += 2;\n var close = chars[open];\n\n if (close) {\n var n = str.indexOf(close, index);\n if (n !== -1) {\n index = n + 1;\n }\n }\n\n if (str[index] === '!') {\n return true;\n }\n } else {\n index++;\n }\n }\n return false;\n};\n\nmodule.exports = function isGlob(str, options) {\n if (typeof str !== 'string' || str === '') {\n return false;\n }\n\n if (isExtglob(str)) {\n return true;\n }\n\n var check = strictCheck;\n\n // optionally relax check\n if (options && options.strict === false) {\n check = relaxedCheck;\n }\n\n return check(str);\n};\n","var getNative = require('./_getNative'),\n root = require('./_root');\n\n/* Built-in method references that are verified to be native. */\nvar DataView = getNative(root, 'DataView');\n\nmodule.exports = DataView;\n","var hashClear = require('./_hashClear'),\n hashDelete = require('./_hashDelete'),\n hashGet = require('./_hashGet'),\n hashHas = require('./_hashHas'),\n hashSet = require('./_hashSet');\n\n/**\n * Creates a hash object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction Hash(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n}\n\n// Add methods to `Hash`.\nHash.prototype.clear = hashClear;\nHash.prototype['delete'] = hashDelete;\nHash.prototype.get = hashGet;\nHash.prototype.has = hashHas;\nHash.prototype.set = hashSet;\n\nmodule.exports = Hash;\n","var listCacheClear = require('./_listCacheClear'),\n listCacheDelete = require('./_listCacheDelete'),\n listCacheGet = require('./_listCacheGet'),\n listCacheHas = require('./_listCacheHas'),\n listCacheSet = require('./_listCacheSet');\n\n/**\n * Creates an list cache object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction ListCache(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n}\n\n// Add methods to `ListCache`.\nListCache.prototype.clear = listCacheClear;\nListCache.prototype['delete'] = listCacheDelete;\nListCache.prototype.get = listCacheGet;\nListCache.prototype.has = listCacheHas;\nListCache.prototype.set = listCacheSet;\n\nmodule.exports = ListCache;\n","var getNative = require('./_getNative'),\n root = require('./_root');\n\n/* Built-in method references that are verified to be native. */\nvar Map = getNative(root, 'Map');\n\nmodule.exports = Map;\n","var mapCacheClear = require('./_mapCacheClear'),\n mapCacheDelete = require('./_mapCacheDelete'),\n mapCacheGet = require('./_mapCacheGet'),\n mapCacheHas = require('./_mapCacheHas'),\n mapCacheSet = require('./_mapCacheSet');\n\n/**\n * Creates a map cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction MapCache(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n}\n\n// Add methods to `MapCache`.\nMapCache.prototype.clear = mapCacheClear;\nMapCache.prototype['delete'] = mapCacheDelete;\nMapCache.prototype.get = mapCacheGet;\nMapCache.prototype.has = mapCacheHas;\nMapCache.prototype.set = mapCacheSet;\n\nmodule.exports = MapCache;\n","var getNative = require('./_getNative'),\n root = require('./_root');\n\n/* Built-in method references that are verified to be native. */\nvar Promise = getNative(root, 'Promise');\n\nmodule.exports = Promise;\n","var getNative = require('./_getNative'),\n root = require('./_root');\n\n/* Built-in method references that are verified to be native. */\nvar Set = getNative(root, 'Set');\n\nmodule.exports = Set;\n","var MapCache = require('./_MapCache'),\n setCacheAdd = require('./_setCacheAdd'),\n setCacheHas = require('./_setCacheHas');\n\n/**\n *\n * Creates an array cache object to store unique values.\n *\n * @private\n * @constructor\n * @param {Array} [values] The values to cache.\n */\nfunction SetCache(values) {\n var index = -1,\n length = values == null ? 0 : values.length;\n\n this.__data__ = new MapCache;\n while (++index < length) {\n this.add(values[index]);\n }\n}\n\n// Add methods to `SetCache`.\nSetCache.prototype.add = SetCache.prototype.push = setCacheAdd;\nSetCache.prototype.has = setCacheHas;\n\nmodule.exports = SetCache;\n","var ListCache = require('./_ListCache'),\n stackClear = require('./_stackClear'),\n stackDelete = require('./_stackDelete'),\n stackGet = require('./_stackGet'),\n stackHas = require('./_stackHas'),\n stackSet = require('./_stackSet');\n\n/**\n * Creates a stack cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction Stack(entries) {\n var data = this.__data__ = new ListCache(entries);\n this.size = data.size;\n}\n\n// Add methods to `Stack`.\nStack.prototype.clear = stackClear;\nStack.prototype['delete'] = stackDelete;\nStack.prototype.get = stackGet;\nStack.prototype.has = stackHas;\nStack.prototype.set = stackSet;\n\nmodule.exports = Stack;\n","var root = require('./_root');\n\n/** Built-in value references. */\nvar Symbol = root.Symbol;\n\nmodule.exports = Symbol;\n","var root = require('./_root');\n\n/** Built-in value references. */\nvar Uint8Array = root.Uint8Array;\n\nmodule.exports = Uint8Array;\n","var getNative = require('./_getNative'),\n root = require('./_root');\n\n/* Built-in method references that are verified to be native. */\nvar WeakMap = getNative(root, 'WeakMap');\n\nmodule.exports = WeakMap;\n","/**\n * A faster alternative to `Function#apply`, this function invokes `func`\n * with the `this` binding of `thisArg` and the arguments of `args`.\n *\n * @private\n * @param {Function} func The function to invoke.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {Array} args The arguments to invoke `func` with.\n * @returns {*} Returns the result of `func`.\n */\nfunction apply(func, thisArg, args) {\n switch (args.length) {\n case 0: return func.call(thisArg);\n case 1: return func.call(thisArg, args[0]);\n case 2: return func.call(thisArg, args[0], args[1]);\n case 3: return func.call(thisArg, args[0], args[1], args[2]);\n }\n return func.apply(thisArg, args);\n}\n\nmodule.exports = apply;\n","/**\n * A specialized version of `_.forEach` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\nfunction arrayEach(array, iteratee) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (iteratee(array[index], index, array) === false) {\n break;\n }\n }\n return array;\n}\n\nmodule.exports = arrayEach;\n","/**\n * A specialized version of `_.filter` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n */\nfunction arrayFilter(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (predicate(value, index, array)) {\n result[resIndex++] = value;\n }\n }\n return result;\n}\n\nmodule.exports = arrayFilter;\n","var baseTimes = require('./_baseTimes'),\n isArguments = require('./isArguments'),\n isArray = require('./isArray'),\n isBuffer = require('./isBuffer'),\n isIndex = require('./_isIndex'),\n isTypedArray = require('./isTypedArray');\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Creates an array of the enumerable property names of the array-like `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @param {boolean} inherited Specify returning inherited property names.\n * @returns {Array} Returns the array of property names.\n */\nfunction arrayLikeKeys(value, inherited) {\n var isArr = isArray(value),\n isArg = !isArr && isArguments(value),\n isBuff = !isArr && !isArg && isBuffer(value),\n isType = !isArr && !isArg && !isBuff && isTypedArray(value),\n skipIndexes = isArr || isArg || isBuff || isType,\n result = skipIndexes ? baseTimes(value.length, String) : [],\n length = result.length;\n\n for (var key in value) {\n if ((inherited || hasOwnProperty.call(value, key)) &&\n !(skipIndexes && (\n // Safari 9 has enumerable `arguments.length` in strict mode.\n key == 'length' ||\n // Node.js 0.10 has enumerable non-index properties on buffers.\n (isBuff && (key == 'offset' || key == 'parent')) ||\n // PhantomJS 2 has enumerable non-index properties on typed arrays.\n (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||\n // Skip index properties.\n isIndex(key, length)\n ))) {\n result.push(key);\n }\n }\n return result;\n}\n\nmodule.exports = arrayLikeKeys;\n","/**\n * A specialized version of `_.map` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n */\nfunction arrayMap(array, iteratee) {\n var index = -1,\n length = array == null ? 0 : array.length,\n result = Array(length);\n\n while (++index < length) {\n result[index] = iteratee(array[index], index, array);\n }\n return result;\n}\n\nmodule.exports = arrayMap;\n","/**\n * Appends the elements of `values` to `array`.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {Array} values The values to append.\n * @returns {Array} Returns `array`.\n */\nfunction arrayPush(array, values) {\n var index = -1,\n length = values.length,\n offset = array.length;\n\n while (++index < length) {\n array[offset + index] = values[index];\n }\n return array;\n}\n\nmodule.exports = arrayPush;\n","/**\n * A specialized version of `_.some` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n */\nfunction arraySome(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (predicate(array[index], index, array)) {\n return true;\n }\n }\n return false;\n}\n\nmodule.exports = arraySome;\n","var baseAssignValue = require('./_baseAssignValue'),\n eq = require('./eq');\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Assigns `value` to `key` of `object` if the existing value is not equivalent\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\nfunction assignValue(object, key, value) {\n var objValue = object[key];\n if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||\n (value === undefined && !(key in object))) {\n baseAssignValue(object, key, value);\n }\n}\n\nmodule.exports = assignValue;\n","var eq = require('./eq');\n\n/**\n * Gets the index at which the `key` is found in `array` of key-value pairs.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} key The key to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\nfunction assocIndexOf(array, key) {\n var length = array.length;\n while (length--) {\n if (eq(array[length][0], key)) {\n return length;\n }\n }\n return -1;\n}\n\nmodule.exports = assocIndexOf;\n","var copyObject = require('./_copyObject'),\n keys = require('./keys');\n\n/**\n * The base implementation of `_.assign` without support for multiple sources\n * or `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @returns {Object} Returns `object`.\n */\nfunction baseAssign(object, source) {\n return object && copyObject(source, keys(source), object);\n}\n\nmodule.exports = baseAssign;\n","var copyObject = require('./_copyObject'),\n keysIn = require('./keysIn');\n\n/**\n * The base implementation of `_.assignIn` without support for multiple sources\n * or `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @returns {Object} Returns `object`.\n */\nfunction baseAssignIn(object, source) {\n return object && copyObject(source, keysIn(source), object);\n}\n\nmodule.exports = baseAssignIn;\n","var defineProperty = require('./_defineProperty');\n\n/**\n * The base implementation of `assignValue` and `assignMergeValue` without\n * value checks.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\nfunction baseAssignValue(object, key, value) {\n if (key == '__proto__' && defineProperty) {\n defineProperty(object, key, {\n 'configurable': true,\n 'enumerable': true,\n 'value': value,\n 'writable': true\n });\n } else {\n object[key] = value;\n }\n}\n\nmodule.exports = baseAssignValue;\n","var get = require('./get');\n\n/**\n * The base implementation of `_.at` without support for individual paths.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {string[]} paths The property paths to pick.\n * @returns {Array} Returns the picked elements.\n */\nfunction baseAt(object, paths) {\n var index = -1,\n length = paths.length,\n result = Array(length),\n skip = object == null;\n\n while (++index < length) {\n result[index] = skip ? undefined : get(object, paths[index]);\n }\n return result;\n}\n\nmodule.exports = baseAt;\n","var Stack = require('./_Stack'),\n arrayEach = require('./_arrayEach'),\n assignValue = require('./_assignValue'),\n baseAssign = require('./_baseAssign'),\n baseAssignIn = require('./_baseAssignIn'),\n cloneBuffer = require('./_cloneBuffer'),\n copyArray = require('./_copyArray'),\n copySymbols = require('./_copySymbols'),\n copySymbolsIn = require('./_copySymbolsIn'),\n getAllKeys = require('./_getAllKeys'),\n getAllKeysIn = require('./_getAllKeysIn'),\n getTag = require('./_getTag'),\n initCloneArray = require('./_initCloneArray'),\n initCloneByTag = require('./_initCloneByTag'),\n initCloneObject = require('./_initCloneObject'),\n isArray = require('./isArray'),\n isBuffer = require('./isBuffer'),\n isMap = require('./isMap'),\n isObject = require('./isObject'),\n isSet = require('./isSet'),\n keys = require('./keys'),\n keysIn = require('./keysIn');\n\n/** Used to compose bitmasks for cloning. */\nvar CLONE_DEEP_FLAG = 1,\n CLONE_FLAT_FLAG = 2,\n CLONE_SYMBOLS_FLAG = 4;\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]',\n arrayTag = '[object Array]',\n boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n errorTag = '[object Error]',\n funcTag = '[object Function]',\n genTag = '[object GeneratorFunction]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n objectTag = '[object Object]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n symbolTag = '[object Symbol]',\n weakMapTag = '[object WeakMap]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n dataViewTag = '[object DataView]',\n float32Tag = '[object Float32Array]',\n float64Tag = '[object Float64Array]',\n int8Tag = '[object Int8Array]',\n int16Tag = '[object Int16Array]',\n int32Tag = '[object Int32Array]',\n uint8Tag = '[object Uint8Array]',\n uint8ClampedTag = '[object Uint8ClampedArray]',\n uint16Tag = '[object Uint16Array]',\n uint32Tag = '[object Uint32Array]';\n\n/** Used to identify `toStringTag` values supported by `_.clone`. */\nvar cloneableTags = {};\ncloneableTags[argsTag] = cloneableTags[arrayTag] =\ncloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =\ncloneableTags[boolTag] = cloneableTags[dateTag] =\ncloneableTags[float32Tag] = cloneableTags[float64Tag] =\ncloneableTags[int8Tag] = cloneableTags[int16Tag] =\ncloneableTags[int32Tag] = cloneableTags[mapTag] =\ncloneableTags[numberTag] = cloneableTags[objectTag] =\ncloneableTags[regexpTag] = cloneableTags[setTag] =\ncloneableTags[stringTag] = cloneableTags[symbolTag] =\ncloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =\ncloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;\ncloneableTags[errorTag] = cloneableTags[funcTag] =\ncloneableTags[weakMapTag] = false;\n\n/**\n * The base implementation of `_.clone` and `_.cloneDeep` which tracks\n * traversed objects.\n *\n * @private\n * @param {*} value The value to clone.\n * @param {boolean} bitmask The bitmask flags.\n * 1 - Deep clone\n * 2 - Flatten inherited properties\n * 4 - Clone symbols\n * @param {Function} [customizer] The function to customize cloning.\n * @param {string} [key] The key of `value`.\n * @param {Object} [object] The parent object of `value`.\n * @param {Object} [stack] Tracks traversed objects and their clone counterparts.\n * @returns {*} Returns the cloned value.\n */\nfunction baseClone(value, bitmask, customizer, key, object, stack) {\n var result,\n isDeep = bitmask & CLONE_DEEP_FLAG,\n isFlat = bitmask & CLONE_FLAT_FLAG,\n isFull = bitmask & CLONE_SYMBOLS_FLAG;\n\n if (customizer) {\n result = object ? customizer(value, key, object, stack) : customizer(value);\n }\n if (result !== undefined) {\n return result;\n }\n if (!isObject(value)) {\n return value;\n }\n var isArr = isArray(value);\n if (isArr) {\n result = initCloneArray(value);\n if (!isDeep) {\n return copyArray(value, result);\n }\n } else {\n var tag = getTag(value),\n isFunc = tag == funcTag || tag == genTag;\n\n if (isBuffer(value)) {\n return cloneBuffer(value, isDeep);\n }\n if (tag == objectTag || tag == argsTag || (isFunc && !object)) {\n result = (isFlat || isFunc) ? {} : initCloneObject(value);\n if (!isDeep) {\n return isFlat\n ? copySymbolsIn(value, baseAssignIn(result, value))\n : copySymbols(value, baseAssign(result, value));\n }\n } else {\n if (!cloneableTags[tag]) {\n return object ? value : {};\n }\n result = initCloneByTag(value, tag, isDeep);\n }\n }\n // Check for circular references and return its corresponding clone.\n stack || (stack = new Stack);\n var stacked = stack.get(value);\n if (stacked) {\n return stacked;\n }\n stack.set(value, result);\n\n if (isSet(value)) {\n value.forEach(function(subValue) {\n result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack));\n });\n } else if (isMap(value)) {\n value.forEach(function(subValue, key) {\n result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack));\n });\n }\n\n var keysFunc = isFull\n ? (isFlat ? getAllKeysIn : getAllKeys)\n : (isFlat ? keysIn : keys);\n\n var props = isArr ? undefined : keysFunc(value);\n arrayEach(props || value, function(subValue, key) {\n if (props) {\n key = subValue;\n subValue = value[key];\n }\n // Recursively populate clone (susceptible to call stack limits).\n assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));\n });\n return result;\n}\n\nmodule.exports = baseClone;\n","var isObject = require('./isObject');\n\n/** Built-in value references. */\nvar objectCreate = Object.create;\n\n/**\n * The base implementation of `_.create` without support for assigning\n * properties to the created object.\n *\n * @private\n * @param {Object} proto The object to inherit from.\n * @returns {Object} Returns the new object.\n */\nvar baseCreate = (function() {\n function object() {}\n return function(proto) {\n if (!isObject(proto)) {\n return {};\n }\n if (objectCreate) {\n return objectCreate(proto);\n }\n object.prototype = proto;\n var result = new object;\n object.prototype = undefined;\n return result;\n };\n}());\n\nmodule.exports = baseCreate;\n","var baseForOwn = require('./_baseForOwn'),\n createBaseEach = require('./_createBaseEach');\n\n/**\n * The base implementation of `_.forEach` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n */\nvar baseEach = createBaseEach(baseForOwn);\n\nmodule.exports = baseEach;\n","var baseEach = require('./_baseEach');\n\n/**\n * The base implementation of `_.filter` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n */\nfunction baseFilter(collection, predicate) {\n var result = [];\n baseEach(collection, function(value, index, collection) {\n if (predicate(value, index, collection)) {\n result.push(value);\n }\n });\n return result;\n}\n\nmodule.exports = baseFilter;\n","/**\n * The base implementation of `_.findIndex` and `_.findLastIndex` without\n * support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} predicate The function invoked per iteration.\n * @param {number} fromIndex The index to search from.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\nfunction baseFindIndex(array, predicate, fromIndex, fromRight) {\n var length = array.length,\n index = fromIndex + (fromRight ? 1 : -1);\n\n while ((fromRight ? index-- : ++index < length)) {\n if (predicate(array[index], index, array)) {\n return index;\n }\n }\n return -1;\n}\n\nmodule.exports = baseFindIndex;\n","var arrayPush = require('./_arrayPush'),\n isFlattenable = require('./_isFlattenable');\n\n/**\n * The base implementation of `_.flatten` with support for restricting flattening.\n *\n * @private\n * @param {Array} array The array to flatten.\n * @param {number} depth The maximum recursion depth.\n * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.\n * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.\n * @param {Array} [result=[]] The initial result value.\n * @returns {Array} Returns the new flattened array.\n */\nfunction baseFlatten(array, depth, predicate, isStrict, result) {\n var index = -1,\n length = array.length;\n\n predicate || (predicate = isFlattenable);\n result || (result = []);\n\n while (++index < length) {\n var value = array[index];\n if (depth > 0 && predicate(value)) {\n if (depth > 1) {\n // Recursively flatten arrays (susceptible to call stack limits).\n baseFlatten(value, depth - 1, predicate, isStrict, result);\n } else {\n arrayPush(result, value);\n }\n } else if (!isStrict) {\n result[result.length] = value;\n }\n }\n return result;\n}\n\nmodule.exports = baseFlatten;\n","var createBaseFor = require('./_createBaseFor');\n\n/**\n * The base implementation of `baseForOwn` which iterates over `object`\n * properties returned by `keysFunc` and invokes `iteratee` for each property.\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\nvar baseFor = createBaseFor();\n\nmodule.exports = baseFor;\n","var baseFor = require('./_baseFor'),\n keys = require('./keys');\n\n/**\n * The base implementation of `_.forOwn` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Object} Returns `object`.\n */\nfunction baseForOwn(object, iteratee) {\n return object && baseFor(object, iteratee, keys);\n}\n\nmodule.exports = baseForOwn;\n","var castPath = require('./_castPath'),\n toKey = require('./_toKey');\n\n/**\n * The base implementation of `_.get` without support for default values.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @returns {*} Returns the resolved value.\n */\nfunction baseGet(object, path) {\n path = castPath(path, object);\n\n var index = 0,\n length = path.length;\n\n while (object != null && index < length) {\n object = object[toKey(path[index++])];\n }\n return (index && index == length) ? object : undefined;\n}\n\nmodule.exports = baseGet;\n","var arrayPush = require('./_arrayPush'),\n isArray = require('./isArray');\n\n/**\n * The base implementation of `getAllKeys` and `getAllKeysIn` which uses\n * `keysFunc` and `symbolsFunc` to get the enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @param {Function} symbolsFunc The function to get the symbols of `object`.\n * @returns {Array} Returns the array of property names and symbols.\n */\nfunction baseGetAllKeys(object, keysFunc, symbolsFunc) {\n var result = keysFunc(object);\n return isArray(object) ? result : arrayPush(result, symbolsFunc(object));\n}\n\nmodule.exports = baseGetAllKeys;\n","var Symbol = require('./_Symbol'),\n getRawTag = require('./_getRawTag'),\n objectToString = require('./_objectToString');\n\n/** `Object#toString` result references. */\nvar nullTag = '[object Null]',\n undefinedTag = '[object Undefined]';\n\n/** Built-in value references. */\nvar symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n/**\n * The base implementation of `getTag` without fallbacks for buggy environments.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\nfunction baseGetTag(value) {\n if (value == null) {\n return value === undefined ? undefinedTag : nullTag;\n }\n return (symToStringTag && symToStringTag in Object(value))\n ? getRawTag(value)\n : objectToString(value);\n}\n\nmodule.exports = baseGetTag;\n","/**\n * The base implementation of `_.hasIn` without support for deep paths.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {Array|string} key The key to check.\n * @returns {boolean} Returns `true` if `key` exists, else `false`.\n */\nfunction baseHasIn(object, key) {\n return object != null && key in Object(object);\n}\n\nmodule.exports = baseHasIn;\n","var baseFindIndex = require('./_baseFindIndex'),\n baseIsNaN = require('./_baseIsNaN'),\n strictIndexOf = require('./_strictIndexOf');\n\n/**\n * The base implementation of `_.indexOf` without `fromIndex` bounds checks.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\nfunction baseIndexOf(array, value, fromIndex) {\n return value === value\n ? strictIndexOf(array, value, fromIndex)\n : baseFindIndex(array, baseIsNaN, fromIndex);\n}\n\nmodule.exports = baseIndexOf;\n","var baseGetTag = require('./_baseGetTag'),\n isObjectLike = require('./isObjectLike');\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]';\n\n/**\n * The base implementation of `_.isArguments`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n */\nfunction baseIsArguments(value) {\n return isObjectLike(value) && baseGetTag(value) == argsTag;\n}\n\nmodule.exports = baseIsArguments;\n","var baseIsEqualDeep = require('./_baseIsEqualDeep'),\n isObjectLike = require('./isObjectLike');\n\n/**\n * The base implementation of `_.isEqual` which supports partial comparisons\n * and tracks traversed objects.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {boolean} bitmask The bitmask flags.\n * 1 - Unordered comparison\n * 2 - Partial comparison\n * @param {Function} [customizer] The function to customize comparisons.\n * @param {Object} [stack] Tracks traversed `value` and `other` objects.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n */\nfunction baseIsEqual(value, other, bitmask, customizer, stack) {\n if (value === other) {\n return true;\n }\n if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {\n return value !== value && other !== other;\n }\n return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);\n}\n\nmodule.exports = baseIsEqual;\n","var Stack = require('./_Stack'),\n equalArrays = require('./_equalArrays'),\n equalByTag = require('./_equalByTag'),\n equalObjects = require('./_equalObjects'),\n getTag = require('./_getTag'),\n isArray = require('./isArray'),\n isBuffer = require('./isBuffer'),\n isTypedArray = require('./isTypedArray');\n\n/** Used to compose bitmasks for value comparisons. */\nvar COMPARE_PARTIAL_FLAG = 1;\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]',\n arrayTag = '[object Array]',\n objectTag = '[object Object]';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * A specialized version of `baseIsEqual` for arrays and objects which performs\n * deep comparisons and tracks traversed objects enabling objects with circular\n * references to be compared.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} [stack] Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {\n var objIsArr = isArray(object),\n othIsArr = isArray(other),\n objTag = objIsArr ? arrayTag : getTag(object),\n othTag = othIsArr ? arrayTag : getTag(other);\n\n objTag = objTag == argsTag ? objectTag : objTag;\n othTag = othTag == argsTag ? objectTag : othTag;\n\n var objIsObj = objTag == objectTag,\n othIsObj = othTag == objectTag,\n isSameTag = objTag == othTag;\n\n if (isSameTag && isBuffer(object)) {\n if (!isBuffer(other)) {\n return false;\n }\n objIsArr = true;\n objIsObj = false;\n }\n if (isSameTag && !objIsObj) {\n stack || (stack = new Stack);\n return (objIsArr || isTypedArray(object))\n ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)\n : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);\n }\n if (!(bitmask & COMPARE_PARTIAL_FLAG)) {\n var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),\n othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');\n\n if (objIsWrapped || othIsWrapped) {\n var objUnwrapped = objIsWrapped ? object.value() : object,\n othUnwrapped = othIsWrapped ? other.value() : other;\n\n stack || (stack = new Stack);\n return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);\n }\n }\n if (!isSameTag) {\n return false;\n }\n stack || (stack = new Stack);\n return equalObjects(object, other, bitmask, customizer, equalFunc, stack);\n}\n\nmodule.exports = baseIsEqualDeep;\n","var getTag = require('./_getTag'),\n isObjectLike = require('./isObjectLike');\n\n/** `Object#toString` result references. */\nvar mapTag = '[object Map]';\n\n/**\n * The base implementation of `_.isMap` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n */\nfunction baseIsMap(value) {\n return isObjectLike(value) && getTag(value) == mapTag;\n}\n\nmodule.exports = baseIsMap;\n","var Stack = require('./_Stack'),\n baseIsEqual = require('./_baseIsEqual');\n\n/** Used to compose bitmasks for value comparisons. */\nvar COMPARE_PARTIAL_FLAG = 1,\n COMPARE_UNORDERED_FLAG = 2;\n\n/**\n * The base implementation of `_.isMatch` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @param {Array} matchData The property names, values, and compare flags to match.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n */\nfunction baseIsMatch(object, source, matchData, customizer) {\n var index = matchData.length,\n length = index,\n noCustomizer = !customizer;\n\n if (object == null) {\n return !length;\n }\n object = Object(object);\n while (index--) {\n var data = matchData[index];\n if ((noCustomizer && data[2])\n ? data[1] !== object[data[0]]\n : !(data[0] in object)\n ) {\n return false;\n }\n }\n while (++index < length) {\n data = matchData[index];\n var key = data[0],\n objValue = object[key],\n srcValue = data[1];\n\n if (noCustomizer && data[2]) {\n if (objValue === undefined && !(key in object)) {\n return false;\n }\n } else {\n var stack = new Stack;\n if (customizer) {\n var result = customizer(objValue, srcValue, key, object, source, stack);\n }\n if (!(result === undefined\n ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack)\n : result\n )) {\n return false;\n }\n }\n }\n return true;\n}\n\nmodule.exports = baseIsMatch;\n","/**\n * The base implementation of `_.isNaN` without support for number objects.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n */\nfunction baseIsNaN(value) {\n return value !== value;\n}\n\nmodule.exports = baseIsNaN;\n","var isFunction = require('./isFunction'),\n isMasked = require('./_isMasked'),\n isObject = require('./isObject'),\n toSource = require('./_toSource');\n\n/**\n * Used to match `RegExp`\n * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).\n */\nvar reRegExpChar = /[\\\\^$.*+?()[\\]{}|]/g;\n\n/** Used to detect host constructors (Safari). */\nvar reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\n/** Used for built-in method references. */\nvar funcProto = Function.prototype,\n objectProto = Object.prototype;\n\n/** Used to resolve the decompiled source of functions. */\nvar funcToString = funcProto.toString;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/** Used to detect if a method is native. */\nvar reIsNative = RegExp('^' +\n funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\\\$&')\n .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n);\n\n/**\n * The base implementation of `_.isNative` without bad shim checks.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n */\nfunction baseIsNative(value) {\n if (!isObject(value) || isMasked(value)) {\n return false;\n }\n var pattern = isFunction(value) ? reIsNative : reIsHostCtor;\n return pattern.test(toSource(value));\n}\n\nmodule.exports = baseIsNative;\n","var getTag = require('./_getTag'),\n isObjectLike = require('./isObjectLike');\n\n/** `Object#toString` result references. */\nvar setTag = '[object Set]';\n\n/**\n * The base implementation of `_.isSet` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n */\nfunction baseIsSet(value) {\n return isObjectLike(value) && getTag(value) == setTag;\n}\n\nmodule.exports = baseIsSet;\n","var baseGetTag = require('./_baseGetTag'),\n isLength = require('./isLength'),\n isObjectLike = require('./isObjectLike');\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]',\n arrayTag = '[object Array]',\n boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n errorTag = '[object Error]',\n funcTag = '[object Function]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n objectTag = '[object Object]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n weakMapTag = '[object WeakMap]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n dataViewTag = '[object DataView]',\n float32Tag = '[object Float32Array]',\n float64Tag = '[object Float64Array]',\n int8Tag = '[object Int8Array]',\n int16Tag = '[object Int16Array]',\n int32Tag = '[object Int32Array]',\n uint8Tag = '[object Uint8Array]',\n uint8ClampedTag = '[object Uint8ClampedArray]',\n uint16Tag = '[object Uint16Array]',\n uint32Tag = '[object Uint32Array]';\n\n/** Used to identify `toStringTag` values of typed arrays. */\nvar typedArrayTags = {};\ntypedArrayTags[float32Tag] = typedArrayTags[float64Tag] =\ntypedArrayTags[int8Tag] = typedArrayTags[int16Tag] =\ntypedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =\ntypedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =\ntypedArrayTags[uint32Tag] = true;\ntypedArrayTags[argsTag] = typedArrayTags[arrayTag] =\ntypedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =\ntypedArrayTags[dataViewTag] = typedArrayTags[dateTag] =\ntypedArrayTags[errorTag] = typedArrayTags[funcTag] =\ntypedArrayTags[mapTag] = typedArrayTags[numberTag] =\ntypedArrayTags[objectTag] = typedArrayTags[regexpTag] =\ntypedArrayTags[setTag] = typedArrayTags[stringTag] =\ntypedArrayTags[weakMapTag] = false;\n\n/**\n * The base implementation of `_.isTypedArray` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n */\nfunction baseIsTypedArray(value) {\n return isObjectLike(value) &&\n isLength(value.length) && !!typedArrayTags[baseGetTag(value)];\n}\n\nmodule.exports = baseIsTypedArray;\n","var baseMatches = require('./_baseMatches'),\n baseMatchesProperty = require('./_baseMatchesProperty'),\n identity = require('./identity'),\n isArray = require('./isArray'),\n property = require('./property');\n\n/**\n * The base implementation of `_.iteratee`.\n *\n * @private\n * @param {*} [value=_.identity] The value to convert to an iteratee.\n * @returns {Function} Returns the iteratee.\n */\nfunction baseIteratee(value) {\n // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.\n // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.\n if (typeof value == 'function') {\n return value;\n }\n if (value == null) {\n return identity;\n }\n if (typeof value == 'object') {\n return isArray(value)\n ? baseMatchesProperty(value[0], value[1])\n : baseMatches(value);\n }\n return property(value);\n}\n\nmodule.exports = baseIteratee;\n","var isPrototype = require('./_isPrototype'),\n nativeKeys = require('./_nativeKeys');\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\nfunction baseKeys(object) {\n if (!isPrototype(object)) {\n return nativeKeys(object);\n }\n var result = [];\n for (var key in Object(object)) {\n if (hasOwnProperty.call(object, key) && key != 'constructor') {\n result.push(key);\n }\n }\n return result;\n}\n\nmodule.exports = baseKeys;\n","var isObject = require('./isObject'),\n isPrototype = require('./_isPrototype'),\n nativeKeysIn = require('./_nativeKeysIn');\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\nfunction baseKeysIn(object) {\n if (!isObject(object)) {\n return nativeKeysIn(object);\n }\n var isProto = isPrototype(object),\n result = [];\n\n for (var key in object) {\n if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {\n result.push(key);\n }\n }\n return result;\n}\n\nmodule.exports = baseKeysIn;\n","var baseEach = require('./_baseEach'),\n isArrayLike = require('./isArrayLike');\n\n/**\n * The base implementation of `_.map` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n */\nfunction baseMap(collection, iteratee) {\n var index = -1,\n result = isArrayLike(collection) ? Array(collection.length) : [];\n\n baseEach(collection, function(value, key, collection) {\n result[++index] = iteratee(value, key, collection);\n });\n return result;\n}\n\nmodule.exports = baseMap;\n","var baseIsMatch = require('./_baseIsMatch'),\n getMatchData = require('./_getMatchData'),\n matchesStrictComparable = require('./_matchesStrictComparable');\n\n/**\n * The base implementation of `_.matches` which doesn't clone `source`.\n *\n * @private\n * @param {Object} source The object of property values to match.\n * @returns {Function} Returns the new spec function.\n */\nfunction baseMatches(source) {\n var matchData = getMatchData(source);\n if (matchData.length == 1 && matchData[0][2]) {\n return matchesStrictComparable(matchData[0][0], matchData[0][1]);\n }\n return function(object) {\n return object === source || baseIsMatch(object, source, matchData);\n };\n}\n\nmodule.exports = baseMatches;\n","var baseIsEqual = require('./_baseIsEqual'),\n get = require('./get'),\n hasIn = require('./hasIn'),\n isKey = require('./_isKey'),\n isStrictComparable = require('./_isStrictComparable'),\n matchesStrictComparable = require('./_matchesStrictComparable'),\n toKey = require('./_toKey');\n\n/** Used to compose bitmasks for value comparisons. */\nvar COMPARE_PARTIAL_FLAG = 1,\n COMPARE_UNORDERED_FLAG = 2;\n\n/**\n * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.\n *\n * @private\n * @param {string} path The path of the property to get.\n * @param {*} srcValue The value to match.\n * @returns {Function} Returns the new spec function.\n */\nfunction baseMatchesProperty(path, srcValue) {\n if (isKey(path) && isStrictComparable(srcValue)) {\n return matchesStrictComparable(toKey(path), srcValue);\n }\n return function(object) {\n var objValue = get(object, path);\n return (objValue === undefined && objValue === srcValue)\n ? hasIn(object, path)\n : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG);\n };\n}\n\nmodule.exports = baseMatchesProperty;\n","/**\n * The base implementation of `_.property` without support for deep paths.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @returns {Function} Returns the new accessor function.\n */\nfunction baseProperty(key) {\n return function(object) {\n return object == null ? undefined : object[key];\n };\n}\n\nmodule.exports = baseProperty;\n","var baseGet = require('./_baseGet');\n\n/**\n * A specialized version of `baseProperty` which supports deep paths.\n *\n * @private\n * @param {Array|string} path The path of the property to get.\n * @returns {Function} Returns the new accessor function.\n */\nfunction basePropertyDeep(path) {\n return function(object) {\n return baseGet(object, path);\n };\n}\n\nmodule.exports = basePropertyDeep;\n","var identity = require('./identity'),\n overRest = require('./_overRest'),\n setToString = require('./_setToString');\n\n/**\n * The base implementation of `_.rest` which doesn't validate or coerce arguments.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n */\nfunction baseRest(func, start) {\n return setToString(overRest(func, start, identity), func + '');\n}\n\nmodule.exports = baseRest;\n","var constant = require('./constant'),\n defineProperty = require('./_defineProperty'),\n identity = require('./identity');\n\n/**\n * The base implementation of `setToString` without support for hot loop shorting.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\nvar baseSetToString = !defineProperty ? identity : function(func, string) {\n return defineProperty(func, 'toString', {\n 'configurable': true,\n 'enumerable': false,\n 'value': constant(string),\n 'writable': true\n });\n};\n\nmodule.exports = baseSetToString;\n","/**\n * The base implementation of `_.slice` without an iteratee call guard.\n *\n * @private\n * @param {Array} array The array to slice.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the slice of `array`.\n */\nfunction baseSlice(array, start, end) {\n var index = -1,\n length = array.length;\n\n if (start < 0) {\n start = -start > length ? 0 : (length + start);\n }\n end = end > length ? length : end;\n if (end < 0) {\n end += length;\n }\n length = start > end ? 0 : ((end - start) >>> 0);\n start >>>= 0;\n\n var result = Array(length);\n while (++index < length) {\n result[index] = array[index + start];\n }\n return result;\n}\n\nmodule.exports = baseSlice;\n","/**\n * The base implementation of `_.times` without support for iteratee shorthands\n * or max array length checks.\n *\n * @private\n * @param {number} n The number of times to invoke `iteratee`.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the array of results.\n */\nfunction baseTimes(n, iteratee) {\n var index = -1,\n result = Array(n);\n\n while (++index < n) {\n result[index] = iteratee(index);\n }\n return result;\n}\n\nmodule.exports = baseTimes;\n","var Symbol = require('./_Symbol'),\n arrayMap = require('./_arrayMap'),\n isArray = require('./isArray'),\n isSymbol = require('./isSymbol');\n\n/** Used as references for various `Number` constants. */\nvar INFINITY = 1 / 0;\n\n/** Used to convert symbols to primitives and strings. */\nvar symbolProto = Symbol ? Symbol.prototype : undefined,\n symbolToString = symbolProto ? symbolProto.toString : undefined;\n\n/**\n * The base implementation of `_.toString` which doesn't convert nullish\n * values to empty strings.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {string} Returns the string.\n */\nfunction baseToString(value) {\n // Exit early for strings to avoid a performance hit in some environments.\n if (typeof value == 'string') {\n return value;\n }\n if (isArray(value)) {\n // Recursively convert values (susceptible to call stack limits).\n return arrayMap(value, baseToString) + '';\n }\n if (isSymbol(value)) {\n return symbolToString ? symbolToString.call(value) : '';\n }\n var result = (value + '');\n return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n}\n\nmodule.exports = baseToString;\n","var trimmedEndIndex = require('./_trimmedEndIndex');\n\n/** Used to match leading whitespace. */\nvar reTrimStart = /^\\s+/;\n\n/**\n * The base implementation of `_.trim`.\n *\n * @private\n * @param {string} string The string to trim.\n * @returns {string} Returns the trimmed string.\n */\nfunction baseTrim(string) {\n return string\n ? string.slice(0, trimmedEndIndex(string) + 1).replace(reTrimStart, '')\n : string;\n}\n\nmodule.exports = baseTrim;\n","/**\n * The base implementation of `_.unary` without support for storing metadata.\n *\n * @private\n * @param {Function} func The function to cap arguments for.\n * @returns {Function} Returns the new capped function.\n */\nfunction baseUnary(func) {\n return function(value) {\n return func(value);\n };\n}\n\nmodule.exports = baseUnary;\n","var arrayMap = require('./_arrayMap');\n\n/**\n * The base implementation of `_.values` and `_.valuesIn` which creates an\n * array of `object` property values corresponding to the property names\n * of `props`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} props The property names to get values for.\n * @returns {Object} Returns the array of property values.\n */\nfunction baseValues(object, props) {\n return arrayMap(props, function(key) {\n return object[key];\n });\n}\n\nmodule.exports = baseValues;\n","/**\n * Checks if a `cache` value for `key` exists.\n *\n * @private\n * @param {Object} cache The cache to query.\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction cacheHas(cache, key) {\n return cache.has(key);\n}\n\nmodule.exports = cacheHas;\n","var isArray = require('./isArray'),\n isKey = require('./_isKey'),\n stringToPath = require('./_stringToPath'),\n toString = require('./toString');\n\n/**\n * Casts `value` to a path array if it's not one.\n *\n * @private\n * @param {*} value The value to inspect.\n * @param {Object} [object] The object to query keys on.\n * @returns {Array} Returns the cast property path array.\n */\nfunction castPath(value, object) {\n if (isArray(value)) {\n return value;\n }\n return isKey(value, object) ? [value] : stringToPath(toString(value));\n}\n\nmodule.exports = castPath;\n","var Uint8Array = require('./_Uint8Array');\n\n/**\n * Creates a clone of `arrayBuffer`.\n *\n * @private\n * @param {ArrayBuffer} arrayBuffer The array buffer to clone.\n * @returns {ArrayBuffer} Returns the cloned array buffer.\n */\nfunction cloneArrayBuffer(arrayBuffer) {\n var result = new arrayBuffer.constructor(arrayBuffer.byteLength);\n new Uint8Array(result).set(new Uint8Array(arrayBuffer));\n return result;\n}\n\nmodule.exports = cloneArrayBuffer;\n","var root = require('./_root');\n\n/** Detect free variable `exports`. */\nvar freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n/** Detect free variable `module`. */\nvar freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n/** Detect the popular CommonJS extension `module.exports`. */\nvar moduleExports = freeModule && freeModule.exports === freeExports;\n\n/** Built-in value references. */\nvar Buffer = moduleExports ? root.Buffer : undefined,\n allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined;\n\n/**\n * Creates a clone of `buffer`.\n *\n * @private\n * @param {Buffer} buffer The buffer to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Buffer} Returns the cloned buffer.\n */\nfunction cloneBuffer(buffer, isDeep) {\n if (isDeep) {\n return buffer.slice();\n }\n var length = buffer.length,\n result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);\n\n buffer.copy(result);\n return result;\n}\n\nmodule.exports = cloneBuffer;\n","var cloneArrayBuffer = require('./_cloneArrayBuffer');\n\n/**\n * Creates a clone of `dataView`.\n *\n * @private\n * @param {Object} dataView The data view to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned data view.\n */\nfunction cloneDataView(dataView, isDeep) {\n var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;\n return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);\n}\n\nmodule.exports = cloneDataView;\n","/** Used to match `RegExp` flags from their coerced string values. */\nvar reFlags = /\\w*$/;\n\n/**\n * Creates a clone of `regexp`.\n *\n * @private\n * @param {Object} regexp The regexp to clone.\n * @returns {Object} Returns the cloned regexp.\n */\nfunction cloneRegExp(regexp) {\n var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));\n result.lastIndex = regexp.lastIndex;\n return result;\n}\n\nmodule.exports = cloneRegExp;\n","var Symbol = require('./_Symbol');\n\n/** Used to convert symbols to primitives and strings. */\nvar symbolProto = Symbol ? Symbol.prototype : undefined,\n symbolValueOf = symbolProto ? symbolProto.valueOf : undefined;\n\n/**\n * Creates a clone of the `symbol` object.\n *\n * @private\n * @param {Object} symbol The symbol object to clone.\n * @returns {Object} Returns the cloned symbol object.\n */\nfunction cloneSymbol(symbol) {\n return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};\n}\n\nmodule.exports = cloneSymbol;\n","var cloneArrayBuffer = require('./_cloneArrayBuffer');\n\n/**\n * Creates a clone of `typedArray`.\n *\n * @private\n * @param {Object} typedArray The typed array to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned typed array.\n */\nfunction cloneTypedArray(typedArray, isDeep) {\n var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;\n return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);\n}\n\nmodule.exports = cloneTypedArray;\n","/**\n * Copies the values of `source` to `array`.\n *\n * @private\n * @param {Array} source The array to copy values from.\n * @param {Array} [array=[]] The array to copy values to.\n * @returns {Array} Returns `array`.\n */\nfunction copyArray(source, array) {\n var index = -1,\n length = source.length;\n\n array || (array = Array(length));\n while (++index < length) {\n array[index] = source[index];\n }\n return array;\n}\n\nmodule.exports = copyArray;\n","var assignValue = require('./_assignValue'),\n baseAssignValue = require('./_baseAssignValue');\n\n/**\n * Copies properties of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy properties from.\n * @param {Array} props The property identifiers to copy.\n * @param {Object} [object={}] The object to copy properties to.\n * @param {Function} [customizer] The function to customize copied values.\n * @returns {Object} Returns `object`.\n */\nfunction copyObject(source, props, object, customizer) {\n var isNew = !object;\n object || (object = {});\n\n var index = -1,\n length = props.length;\n\n while (++index < length) {\n var key = props[index];\n\n var newValue = customizer\n ? customizer(object[key], source[key], key, object, source)\n : undefined;\n\n if (newValue === undefined) {\n newValue = source[key];\n }\n if (isNew) {\n baseAssignValue(object, key, newValue);\n } else {\n assignValue(object, key, newValue);\n }\n }\n return object;\n}\n\nmodule.exports = copyObject;\n","var copyObject = require('./_copyObject'),\n getSymbols = require('./_getSymbols');\n\n/**\n * Copies own symbols of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy symbols from.\n * @param {Object} [object={}] The object to copy symbols to.\n * @returns {Object} Returns `object`.\n */\nfunction copySymbols(source, object) {\n return copyObject(source, getSymbols(source), object);\n}\n\nmodule.exports = copySymbols;\n","var copyObject = require('./_copyObject'),\n getSymbolsIn = require('./_getSymbolsIn');\n\n/**\n * Copies own and inherited symbols of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy symbols from.\n * @param {Object} [object={}] The object to copy symbols to.\n * @returns {Object} Returns `object`.\n */\nfunction copySymbolsIn(source, object) {\n return copyObject(source, getSymbolsIn(source), object);\n}\n\nmodule.exports = copySymbolsIn;\n","var root = require('./_root');\n\n/** Used to detect overreaching core-js shims. */\nvar coreJsData = root['__core-js_shared__'];\n\nmodule.exports = coreJsData;\n","var baseRest = require('./_baseRest'),\n isIterateeCall = require('./_isIterateeCall');\n\n/**\n * Creates a function like `_.assign`.\n *\n * @private\n * @param {Function} assigner The function to assign values.\n * @returns {Function} Returns the new assigner function.\n */\nfunction createAssigner(assigner) {\n return baseRest(function(object, sources) {\n var index = -1,\n length = sources.length,\n customizer = length > 1 ? sources[length - 1] : undefined,\n guard = length > 2 ? sources[2] : undefined;\n\n customizer = (assigner.length > 3 && typeof customizer == 'function')\n ? (length--, customizer)\n : undefined;\n\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n customizer = length < 3 ? undefined : customizer;\n length = 1;\n }\n object = Object(object);\n while (++index < length) {\n var source = sources[index];\n if (source) {\n assigner(object, source, index, customizer);\n }\n }\n return object;\n });\n}\n\nmodule.exports = createAssigner;\n","var isArrayLike = require('./isArrayLike');\n\n/**\n * Creates a `baseEach` or `baseEachRight` function.\n *\n * @private\n * @param {Function} eachFunc The function to iterate over a collection.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\nfunction createBaseEach(eachFunc, fromRight) {\n return function(collection, iteratee) {\n if (collection == null) {\n return collection;\n }\n if (!isArrayLike(collection)) {\n return eachFunc(collection, iteratee);\n }\n var length = collection.length,\n index = fromRight ? length : -1,\n iterable = Object(collection);\n\n while ((fromRight ? index-- : ++index < length)) {\n if (iteratee(iterable[index], index, iterable) === false) {\n break;\n }\n }\n return collection;\n };\n}\n\nmodule.exports = createBaseEach;\n","/**\n * Creates a base function for methods like `_.forIn` and `_.forOwn`.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\nfunction createBaseFor(fromRight) {\n return function(object, iteratee, keysFunc) {\n var index = -1,\n iterable = Object(object),\n props = keysFunc(object),\n length = props.length;\n\n while (length--) {\n var key = props[fromRight ? length : ++index];\n if (iteratee(iterable[key], key, iterable) === false) {\n break;\n }\n }\n return object;\n };\n}\n\nmodule.exports = createBaseFor;\n","var getNative = require('./_getNative');\n\nvar defineProperty = (function() {\n try {\n var func = getNative(Object, 'defineProperty');\n func({}, '', {});\n return func;\n } catch (e) {}\n}());\n\nmodule.exports = defineProperty;\n","var SetCache = require('./_SetCache'),\n arraySome = require('./_arraySome'),\n cacheHas = require('./_cacheHas');\n\n/** Used to compose bitmasks for value comparisons. */\nvar COMPARE_PARTIAL_FLAG = 1,\n COMPARE_UNORDERED_FLAG = 2;\n\n/**\n * A specialized version of `baseIsEqualDeep` for arrays with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Array} array The array to compare.\n * @param {Array} other The other array to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `array` and `other` objects.\n * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.\n */\nfunction equalArrays(array, other, bitmask, customizer, equalFunc, stack) {\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n arrLength = array.length,\n othLength = other.length;\n\n if (arrLength != othLength && !(isPartial && othLength > arrLength)) {\n return false;\n }\n // Check that cyclic values are equal.\n var arrStacked = stack.get(array);\n var othStacked = stack.get(other);\n if (arrStacked && othStacked) {\n return arrStacked == other && othStacked == array;\n }\n var index = -1,\n result = true,\n seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined;\n\n stack.set(array, other);\n stack.set(other, array);\n\n // Ignore non-index properties.\n while (++index < arrLength) {\n var arrValue = array[index],\n othValue = other[index];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, arrValue, index, other, array, stack)\n : customizer(arrValue, othValue, index, array, other, stack);\n }\n if (compared !== undefined) {\n if (compared) {\n continue;\n }\n result = false;\n break;\n }\n // Recursively compare arrays (susceptible to call stack limits).\n if (seen) {\n if (!arraySome(other, function(othValue, othIndex) {\n if (!cacheHas(seen, othIndex) &&\n (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {\n return seen.push(othIndex);\n }\n })) {\n result = false;\n break;\n }\n } else if (!(\n arrValue === othValue ||\n equalFunc(arrValue, othValue, bitmask, customizer, stack)\n )) {\n result = false;\n break;\n }\n }\n stack['delete'](array);\n stack['delete'](other);\n return result;\n}\n\nmodule.exports = equalArrays;\n","var Symbol = require('./_Symbol'),\n Uint8Array = require('./_Uint8Array'),\n eq = require('./eq'),\n equalArrays = require('./_equalArrays'),\n mapToArray = require('./_mapToArray'),\n setToArray = require('./_setToArray');\n\n/** Used to compose bitmasks for value comparisons. */\nvar COMPARE_PARTIAL_FLAG = 1,\n COMPARE_UNORDERED_FLAG = 2;\n\n/** `Object#toString` result references. */\nvar boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n errorTag = '[object Error]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n symbolTag = '[object Symbol]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n dataViewTag = '[object DataView]';\n\n/** Used to convert symbols to primitives and strings. */\nvar symbolProto = Symbol ? Symbol.prototype : undefined,\n symbolValueOf = symbolProto ? symbolProto.valueOf : undefined;\n\n/**\n * A specialized version of `baseIsEqualDeep` for comparing objects of\n * the same `toStringTag`.\n *\n * **Note:** This function only supports comparing values with tags of\n * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {string} tag The `toStringTag` of the objects to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {\n switch (tag) {\n case dataViewTag:\n if ((object.byteLength != other.byteLength) ||\n (object.byteOffset != other.byteOffset)) {\n return false;\n }\n object = object.buffer;\n other = other.buffer;\n\n case arrayBufferTag:\n if ((object.byteLength != other.byteLength) ||\n !equalFunc(new Uint8Array(object), new Uint8Array(other))) {\n return false;\n }\n return true;\n\n case boolTag:\n case dateTag:\n case numberTag:\n // Coerce booleans to `1` or `0` and dates to milliseconds.\n // Invalid dates are coerced to `NaN`.\n return eq(+object, +other);\n\n case errorTag:\n return object.name == other.name && object.message == other.message;\n\n case regexpTag:\n case stringTag:\n // Coerce regexes to strings and treat strings, primitives and objects,\n // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring\n // for more details.\n return object == (other + '');\n\n case mapTag:\n var convert = mapToArray;\n\n case setTag:\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG;\n convert || (convert = setToArray);\n\n if (object.size != other.size && !isPartial) {\n return false;\n }\n // Assume cyclic values are equal.\n var stacked = stack.get(object);\n if (stacked) {\n return stacked == other;\n }\n bitmask |= COMPARE_UNORDERED_FLAG;\n\n // Recursively compare objects (susceptible to call stack limits).\n stack.set(object, other);\n var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);\n stack['delete'](object);\n return result;\n\n case symbolTag:\n if (symbolValueOf) {\n return symbolValueOf.call(object) == symbolValueOf.call(other);\n }\n }\n return false;\n}\n\nmodule.exports = equalByTag;\n","var getAllKeys = require('./_getAllKeys');\n\n/** Used to compose bitmasks for value comparisons. */\nvar COMPARE_PARTIAL_FLAG = 1;\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * A specialized version of `baseIsEqualDeep` for objects with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction equalObjects(object, other, bitmask, customizer, equalFunc, stack) {\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n objProps = getAllKeys(object),\n objLength = objProps.length,\n othProps = getAllKeys(other),\n othLength = othProps.length;\n\n if (objLength != othLength && !isPartial) {\n return false;\n }\n var index = objLength;\n while (index--) {\n var key = objProps[index];\n if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {\n return false;\n }\n }\n // Check that cyclic values are equal.\n var objStacked = stack.get(object);\n var othStacked = stack.get(other);\n if (objStacked && othStacked) {\n return objStacked == other && othStacked == object;\n }\n var result = true;\n stack.set(object, other);\n stack.set(other, object);\n\n var skipCtor = isPartial;\n while (++index < objLength) {\n key = objProps[index];\n var objValue = object[key],\n othValue = other[key];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, objValue, key, other, object, stack)\n : customizer(objValue, othValue, key, object, other, stack);\n }\n // Recursively compare objects (susceptible to call stack limits).\n if (!(compared === undefined\n ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))\n : compared\n )) {\n result = false;\n break;\n }\n skipCtor || (skipCtor = key == 'constructor');\n }\n if (result && !skipCtor) {\n var objCtor = object.constructor,\n othCtor = other.constructor;\n\n // Non `Object` object instances with different constructors are not equal.\n if (objCtor != othCtor &&\n ('constructor' in object && 'constructor' in other) &&\n !(typeof objCtor == 'function' && objCtor instanceof objCtor &&\n typeof othCtor == 'function' && othCtor instanceof othCtor)) {\n result = false;\n }\n }\n stack['delete'](object);\n stack['delete'](other);\n return result;\n}\n\nmodule.exports = equalObjects;\n","var flatten = require('./flatten'),\n overRest = require('./_overRest'),\n setToString = require('./_setToString');\n\n/**\n * A specialized version of `baseRest` which flattens the rest array.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @returns {Function} Returns the new function.\n */\nfunction flatRest(func) {\n return setToString(overRest(func, undefined, flatten), func + '');\n}\n\nmodule.exports = flatRest;\n","/** Detect free variable `global` from Node.js. */\nvar freeGlobal = typeof global == 'object' && global && global.Object === Object && global;\n\nmodule.exports = freeGlobal;\n","var baseGetAllKeys = require('./_baseGetAllKeys'),\n getSymbols = require('./_getSymbols'),\n keys = require('./keys');\n\n/**\n * Creates an array of own enumerable property names and symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\nfunction getAllKeys(object) {\n return baseGetAllKeys(object, keys, getSymbols);\n}\n\nmodule.exports = getAllKeys;\n","var baseGetAllKeys = require('./_baseGetAllKeys'),\n getSymbolsIn = require('./_getSymbolsIn'),\n keysIn = require('./keysIn');\n\n/**\n * Creates an array of own and inherited enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\nfunction getAllKeysIn(object) {\n return baseGetAllKeys(object, keysIn, getSymbolsIn);\n}\n\nmodule.exports = getAllKeysIn;\n","var isKeyable = require('./_isKeyable');\n\n/**\n * Gets the data for `map`.\n *\n * @private\n * @param {Object} map The map to query.\n * @param {string} key The reference key.\n * @returns {*} Returns the map data.\n */\nfunction getMapData(map, key) {\n var data = map.__data__;\n return isKeyable(key)\n ? data[typeof key == 'string' ? 'string' : 'hash']\n : data.map;\n}\n\nmodule.exports = getMapData;\n","var isStrictComparable = require('./_isStrictComparable'),\n keys = require('./keys');\n\n/**\n * Gets the property names, values, and compare flags of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the match data of `object`.\n */\nfunction getMatchData(object) {\n var result = keys(object),\n length = result.length;\n\n while (length--) {\n var key = result[length],\n value = object[key];\n\n result[length] = [key, value, isStrictComparable(value)];\n }\n return result;\n}\n\nmodule.exports = getMatchData;\n","var baseIsNative = require('./_baseIsNative'),\n getValue = require('./_getValue');\n\n/**\n * Gets the native function at `key` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the method to get.\n * @returns {*} Returns the function if it's native, else `undefined`.\n */\nfunction getNative(object, key) {\n var value = getValue(object, key);\n return baseIsNative(value) ? value : undefined;\n}\n\nmodule.exports = getNative;\n","var overArg = require('./_overArg');\n\n/** Built-in value references. */\nvar getPrototype = overArg(Object.getPrototypeOf, Object);\n\nmodule.exports = getPrototype;\n","var Symbol = require('./_Symbol');\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar nativeObjectToString = objectProto.toString;\n\n/** Built-in value references. */\nvar symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n/**\n * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the raw `toStringTag`.\n */\nfunction getRawTag(value) {\n var isOwn = hasOwnProperty.call(value, symToStringTag),\n tag = value[symToStringTag];\n\n try {\n value[symToStringTag] = undefined;\n var unmasked = true;\n } catch (e) {}\n\n var result = nativeObjectToString.call(value);\n if (unmasked) {\n if (isOwn) {\n value[symToStringTag] = tag;\n } else {\n delete value[symToStringTag];\n }\n }\n return result;\n}\n\nmodule.exports = getRawTag;\n","var arrayFilter = require('./_arrayFilter'),\n stubArray = require('./stubArray');\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Built-in value references. */\nvar propertyIsEnumerable = objectProto.propertyIsEnumerable;\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeGetSymbols = Object.getOwnPropertySymbols;\n\n/**\n * Creates an array of the own enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\nvar getSymbols = !nativeGetSymbols ? stubArray : function(object) {\n if (object == null) {\n return [];\n }\n object = Object(object);\n return arrayFilter(nativeGetSymbols(object), function(symbol) {\n return propertyIsEnumerable.call(object, symbol);\n });\n};\n\nmodule.exports = getSymbols;\n","var arrayPush = require('./_arrayPush'),\n getPrototype = require('./_getPrototype'),\n getSymbols = require('./_getSymbols'),\n stubArray = require('./stubArray');\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeGetSymbols = Object.getOwnPropertySymbols;\n\n/**\n * Creates an array of the own and inherited enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\nvar getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) {\n var result = [];\n while (object) {\n arrayPush(result, getSymbols(object));\n object = getPrototype(object);\n }\n return result;\n};\n\nmodule.exports = getSymbolsIn;\n","var DataView = require('./_DataView'),\n Map = require('./_Map'),\n Promise = require('./_Promise'),\n Set = require('./_Set'),\n WeakMap = require('./_WeakMap'),\n baseGetTag = require('./_baseGetTag'),\n toSource = require('./_toSource');\n\n/** `Object#toString` result references. */\nvar mapTag = '[object Map]',\n objectTag = '[object Object]',\n promiseTag = '[object Promise]',\n setTag = '[object Set]',\n weakMapTag = '[object WeakMap]';\n\nvar dataViewTag = '[object DataView]';\n\n/** Used to detect maps, sets, and weakmaps. */\nvar dataViewCtorString = toSource(DataView),\n mapCtorString = toSource(Map),\n promiseCtorString = toSource(Promise),\n setCtorString = toSource(Set),\n weakMapCtorString = toSource(WeakMap);\n\n/**\n * Gets the `toStringTag` of `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\nvar getTag = baseGetTag;\n\n// Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.\nif ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||\n (Map && getTag(new Map) != mapTag) ||\n (Promise && getTag(Promise.resolve()) != promiseTag) ||\n (Set && getTag(new Set) != setTag) ||\n (WeakMap && getTag(new WeakMap) != weakMapTag)) {\n getTag = function(value) {\n var result = baseGetTag(value),\n Ctor = result == objectTag ? value.constructor : undefined,\n ctorString = Ctor ? toSource(Ctor) : '';\n\n if (ctorString) {\n switch (ctorString) {\n case dataViewCtorString: return dataViewTag;\n case mapCtorString: return mapTag;\n case promiseCtorString: return promiseTag;\n case setCtorString: return setTag;\n case weakMapCtorString: return weakMapTag;\n }\n }\n return result;\n };\n}\n\nmodule.exports = getTag;\n","/**\n * Gets the value at `key` of `object`.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\nfunction getValue(object, key) {\n return object == null ? undefined : object[key];\n}\n\nmodule.exports = getValue;\n","var castPath = require('./_castPath'),\n isArguments = require('./isArguments'),\n isArray = require('./isArray'),\n isIndex = require('./_isIndex'),\n isLength = require('./isLength'),\n toKey = require('./_toKey');\n\n/**\n * Checks if `path` exists on `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @param {Function} hasFunc The function to check properties.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n */\nfunction hasPath(object, path, hasFunc) {\n path = castPath(path, object);\n\n var index = -1,\n length = path.length,\n result = false;\n\n while (++index < length) {\n var key = toKey(path[index]);\n if (!(result = object != null && hasFunc(object, key))) {\n break;\n }\n object = object[key];\n }\n if (result || ++index != length) {\n return result;\n }\n length = object == null ? 0 : object.length;\n return !!length && isLength(length) && isIndex(key, length) &&\n (isArray(object) || isArguments(object));\n}\n\nmodule.exports = hasPath;\n","var nativeCreate = require('./_nativeCreate');\n\n/**\n * Removes all key-value entries from the hash.\n *\n * @private\n * @name clear\n * @memberOf Hash\n */\nfunction hashClear() {\n this.__data__ = nativeCreate ? nativeCreate(null) : {};\n this.size = 0;\n}\n\nmodule.exports = hashClear;\n","/**\n * Removes `key` and its value from the hash.\n *\n * @private\n * @name delete\n * @memberOf Hash\n * @param {Object} hash The hash to modify.\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction hashDelete(key) {\n var result = this.has(key) && delete this.__data__[key];\n this.size -= result ? 1 : 0;\n return result;\n}\n\nmodule.exports = hashDelete;\n","var nativeCreate = require('./_nativeCreate');\n\n/** Used to stand-in for `undefined` hash values. */\nvar HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Gets the hash value for `key`.\n *\n * @private\n * @name get\n * @memberOf Hash\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction hashGet(key) {\n var data = this.__data__;\n if (nativeCreate) {\n var result = data[key];\n return result === HASH_UNDEFINED ? undefined : result;\n }\n return hasOwnProperty.call(data, key) ? data[key] : undefined;\n}\n\nmodule.exports = hashGet;\n","var nativeCreate = require('./_nativeCreate');\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Checks if a hash value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Hash\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction hashHas(key) {\n var data = this.__data__;\n return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);\n}\n\nmodule.exports = hashHas;\n","var nativeCreate = require('./_nativeCreate');\n\n/** Used to stand-in for `undefined` hash values. */\nvar HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n/**\n * Sets the hash `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Hash\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the hash instance.\n */\nfunction hashSet(key, value) {\n var data = this.__data__;\n this.size += this.has(key) ? 0 : 1;\n data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;\n return this;\n}\n\nmodule.exports = hashSet;\n","/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Initializes an array clone.\n *\n * @private\n * @param {Array} array The array to clone.\n * @returns {Array} Returns the initialized clone.\n */\nfunction initCloneArray(array) {\n var length = array.length,\n result = new array.constructor(length);\n\n // Add properties assigned by `RegExp#exec`.\n if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {\n result.index = array.index;\n result.input = array.input;\n }\n return result;\n}\n\nmodule.exports = initCloneArray;\n","var cloneArrayBuffer = require('./_cloneArrayBuffer'),\n cloneDataView = require('./_cloneDataView'),\n cloneRegExp = require('./_cloneRegExp'),\n cloneSymbol = require('./_cloneSymbol'),\n cloneTypedArray = require('./_cloneTypedArray');\n\n/** `Object#toString` result references. */\nvar boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n symbolTag = '[object Symbol]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n dataViewTag = '[object DataView]',\n float32Tag = '[object Float32Array]',\n float64Tag = '[object Float64Array]',\n int8Tag = '[object Int8Array]',\n int16Tag = '[object Int16Array]',\n int32Tag = '[object Int32Array]',\n uint8Tag = '[object Uint8Array]',\n uint8ClampedTag = '[object Uint8ClampedArray]',\n uint16Tag = '[object Uint16Array]',\n uint32Tag = '[object Uint32Array]';\n\n/**\n * Initializes an object clone based on its `toStringTag`.\n *\n * **Note:** This function only supports cloning values with tags of\n * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.\n *\n * @private\n * @param {Object} object The object to clone.\n * @param {string} tag The `toStringTag` of the object to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the initialized clone.\n */\nfunction initCloneByTag(object, tag, isDeep) {\n var Ctor = object.constructor;\n switch (tag) {\n case arrayBufferTag:\n return cloneArrayBuffer(object);\n\n case boolTag:\n case dateTag:\n return new Ctor(+object);\n\n case dataViewTag:\n return cloneDataView(object, isDeep);\n\n case float32Tag: case float64Tag:\n case int8Tag: case int16Tag: case int32Tag:\n case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:\n return cloneTypedArray(object, isDeep);\n\n case mapTag:\n return new Ctor;\n\n case numberTag:\n case stringTag:\n return new Ctor(object);\n\n case regexpTag:\n return cloneRegExp(object);\n\n case setTag:\n return new Ctor;\n\n case symbolTag:\n return cloneSymbol(object);\n }\n}\n\nmodule.exports = initCloneByTag;\n","var baseCreate = require('./_baseCreate'),\n getPrototype = require('./_getPrototype'),\n isPrototype = require('./_isPrototype');\n\n/**\n * Initializes an object clone.\n *\n * @private\n * @param {Object} object The object to clone.\n * @returns {Object} Returns the initialized clone.\n */\nfunction initCloneObject(object) {\n return (typeof object.constructor == 'function' && !isPrototype(object))\n ? baseCreate(getPrototype(object))\n : {};\n}\n\nmodule.exports = initCloneObject;\n","var Symbol = require('./_Symbol'),\n isArguments = require('./isArguments'),\n isArray = require('./isArray');\n\n/** Built-in value references. */\nvar spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined;\n\n/**\n * Checks if `value` is a flattenable `arguments` object or array.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.\n */\nfunction isFlattenable(value) {\n return isArray(value) || isArguments(value) ||\n !!(spreadableSymbol && value && value[spreadableSymbol]);\n}\n\nmodule.exports = isFlattenable;\n","/** Used as references for various `Number` constants. */\nvar MAX_SAFE_INTEGER = 9007199254740991;\n\n/** Used to detect unsigned integer values. */\nvar reIsUint = /^(?:0|[1-9]\\d*)$/;\n\n/**\n * Checks if `value` is a valid array-like index.\n *\n * @private\n * @param {*} value The value to check.\n * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n */\nfunction isIndex(value, length) {\n var type = typeof value;\n length = length == null ? MAX_SAFE_INTEGER : length;\n\n return !!length &&\n (type == 'number' ||\n (type != 'symbol' && reIsUint.test(value))) &&\n (value > -1 && value % 1 == 0 && value < length);\n}\n\nmodule.exports = isIndex;\n","var eq = require('./eq'),\n isArrayLike = require('./isArrayLike'),\n isIndex = require('./_isIndex'),\n isObject = require('./isObject');\n\n/**\n * Checks if the given arguments are from an iteratee call.\n *\n * @private\n * @param {*} value The potential iteratee value argument.\n * @param {*} index The potential iteratee index or key argument.\n * @param {*} object The potential iteratee object argument.\n * @returns {boolean} Returns `true` if the arguments are from an iteratee call,\n * else `false`.\n */\nfunction isIterateeCall(value, index, object) {\n if (!isObject(object)) {\n return false;\n }\n var type = typeof index;\n if (type == 'number'\n ? (isArrayLike(object) && isIndex(index, object.length))\n : (type == 'string' && index in object)\n ) {\n return eq(object[index], value);\n }\n return false;\n}\n\nmodule.exports = isIterateeCall;\n","var isArray = require('./isArray'),\n isSymbol = require('./isSymbol');\n\n/** Used to match property names within property paths. */\nvar reIsDeepProp = /\\.|\\[(?:[^[\\]]*|([\"'])(?:(?!\\1)[^\\\\]|\\\\.)*?\\1)\\]/,\n reIsPlainProp = /^\\w*$/;\n\n/**\n * Checks if `value` is a property name and not a property path.\n *\n * @private\n * @param {*} value The value to check.\n * @param {Object} [object] The object to query keys on.\n * @returns {boolean} Returns `true` if `value` is a property name, else `false`.\n */\nfunction isKey(value, object) {\n if (isArray(value)) {\n return false;\n }\n var type = typeof value;\n if (type == 'number' || type == 'symbol' || type == 'boolean' ||\n value == null || isSymbol(value)) {\n return true;\n }\n return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||\n (object != null && value in Object(object));\n}\n\nmodule.exports = isKey;\n","/**\n * Checks if `value` is suitable for use as unique object key.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is suitable, else `false`.\n */\nfunction isKeyable(value) {\n var type = typeof value;\n return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')\n ? (value !== '__proto__')\n : (value === null);\n}\n\nmodule.exports = isKeyable;\n","var coreJsData = require('./_coreJsData');\n\n/** Used to detect methods masquerading as native. */\nvar maskSrcKey = (function() {\n var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');\n return uid ? ('Symbol(src)_1.' + uid) : '';\n}());\n\n/**\n * Checks if `func` has its source masked.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` is masked, else `false`.\n */\nfunction isMasked(func) {\n return !!maskSrcKey && (maskSrcKey in func);\n}\n\nmodule.exports = isMasked;\n","/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Checks if `value` is likely a prototype object.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.\n */\nfunction isPrototype(value) {\n var Ctor = value && value.constructor,\n proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;\n\n return value === proto;\n}\n\nmodule.exports = isPrototype;\n","var isObject = require('./isObject');\n\n/**\n * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` if suitable for strict\n * equality comparisons, else `false`.\n */\nfunction isStrictComparable(value) {\n return value === value && !isObject(value);\n}\n\nmodule.exports = isStrictComparable;\n","/**\n * Removes all key-value entries from the list cache.\n *\n * @private\n * @name clear\n * @memberOf ListCache\n */\nfunction listCacheClear() {\n this.__data__ = [];\n this.size = 0;\n}\n\nmodule.exports = listCacheClear;\n","var assocIndexOf = require('./_assocIndexOf');\n\n/** Used for built-in method references. */\nvar arrayProto = Array.prototype;\n\n/** Built-in value references. */\nvar splice = arrayProto.splice;\n\n/**\n * Removes `key` and its value from the list cache.\n *\n * @private\n * @name delete\n * @memberOf ListCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction listCacheDelete(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n return false;\n }\n var lastIndex = data.length - 1;\n if (index == lastIndex) {\n data.pop();\n } else {\n splice.call(data, index, 1);\n }\n --this.size;\n return true;\n}\n\nmodule.exports = listCacheDelete;\n","var assocIndexOf = require('./_assocIndexOf');\n\n/**\n * Gets the list cache value for `key`.\n *\n * @private\n * @name get\n * @memberOf ListCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction listCacheGet(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n return index < 0 ? undefined : data[index][1];\n}\n\nmodule.exports = listCacheGet;\n","var assocIndexOf = require('./_assocIndexOf');\n\n/**\n * Checks if a list cache value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf ListCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction listCacheHas(key) {\n return assocIndexOf(this.__data__, key) > -1;\n}\n\nmodule.exports = listCacheHas;\n","var assocIndexOf = require('./_assocIndexOf');\n\n/**\n * Sets the list cache `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf ListCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the list cache instance.\n */\nfunction listCacheSet(key, value) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n ++this.size;\n data.push([key, value]);\n } else {\n data[index][1] = value;\n }\n return this;\n}\n\nmodule.exports = listCacheSet;\n","var Hash = require('./_Hash'),\n ListCache = require('./_ListCache'),\n Map = require('./_Map');\n\n/**\n * Removes all key-value entries from the map.\n *\n * @private\n * @name clear\n * @memberOf MapCache\n */\nfunction mapCacheClear() {\n this.size = 0;\n this.__data__ = {\n 'hash': new Hash,\n 'map': new (Map || ListCache),\n 'string': new Hash\n };\n}\n\nmodule.exports = mapCacheClear;\n","var getMapData = require('./_getMapData');\n\n/**\n * Removes `key` and its value from the map.\n *\n * @private\n * @name delete\n * @memberOf MapCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction mapCacheDelete(key) {\n var result = getMapData(this, key)['delete'](key);\n this.size -= result ? 1 : 0;\n return result;\n}\n\nmodule.exports = mapCacheDelete;\n","var getMapData = require('./_getMapData');\n\n/**\n * Gets the map value for `key`.\n *\n * @private\n * @name get\n * @memberOf MapCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction mapCacheGet(key) {\n return getMapData(this, key).get(key);\n}\n\nmodule.exports = mapCacheGet;\n","var getMapData = require('./_getMapData');\n\n/**\n * Checks if a map value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf MapCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction mapCacheHas(key) {\n return getMapData(this, key).has(key);\n}\n\nmodule.exports = mapCacheHas;\n","var getMapData = require('./_getMapData');\n\n/**\n * Sets the map `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf MapCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the map cache instance.\n */\nfunction mapCacheSet(key, value) {\n var data = getMapData(this, key),\n size = data.size;\n\n data.set(key, value);\n this.size += data.size == size ? 0 : 1;\n return this;\n}\n\nmodule.exports = mapCacheSet;\n","/**\n * Converts `map` to its key-value pairs.\n *\n * @private\n * @param {Object} map The map to convert.\n * @returns {Array} Returns the key-value pairs.\n */\nfunction mapToArray(map) {\n var index = -1,\n result = Array(map.size);\n\n map.forEach(function(value, key) {\n result[++index] = [key, value];\n });\n return result;\n}\n\nmodule.exports = mapToArray;\n","/**\n * A specialized version of `matchesProperty` for source values suitable\n * for strict equality comparisons, i.e. `===`.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @param {*} srcValue The value to match.\n * @returns {Function} Returns the new spec function.\n */\nfunction matchesStrictComparable(key, srcValue) {\n return function(object) {\n if (object == null) {\n return false;\n }\n return object[key] === srcValue &&\n (srcValue !== undefined || (key in Object(object)));\n };\n}\n\nmodule.exports = matchesStrictComparable;\n","var memoize = require('./memoize');\n\n/** Used as the maximum memoize cache size. */\nvar MAX_MEMOIZE_SIZE = 500;\n\n/**\n * A specialized version of `_.memoize` which clears the memoized function's\n * cache when it exceeds `MAX_MEMOIZE_SIZE`.\n *\n * @private\n * @param {Function} func The function to have its output memoized.\n * @returns {Function} Returns the new memoized function.\n */\nfunction memoizeCapped(func) {\n var result = memoize(func, function(key) {\n if (cache.size === MAX_MEMOIZE_SIZE) {\n cache.clear();\n }\n return key;\n });\n\n var cache = result.cache;\n return result;\n}\n\nmodule.exports = memoizeCapped;\n","var getNative = require('./_getNative');\n\n/* Built-in method references that are verified to be native. */\nvar nativeCreate = getNative(Object, 'create');\n\nmodule.exports = nativeCreate;\n","var overArg = require('./_overArg');\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeKeys = overArg(Object.keys, Object);\n\nmodule.exports = nativeKeys;\n","/**\n * This function is like\n * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * except that it includes inherited enumerable properties.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\nfunction nativeKeysIn(object) {\n var result = [];\n if (object != null) {\n for (var key in Object(object)) {\n result.push(key);\n }\n }\n return result;\n}\n\nmodule.exports = nativeKeysIn;\n","var freeGlobal = require('./_freeGlobal');\n\n/** Detect free variable `exports`. */\nvar freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n/** Detect free variable `module`. */\nvar freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n/** Detect the popular CommonJS extension `module.exports`. */\nvar moduleExports = freeModule && freeModule.exports === freeExports;\n\n/** Detect free variable `process` from Node.js. */\nvar freeProcess = moduleExports && freeGlobal.process;\n\n/** Used to access faster Node.js helpers. */\nvar nodeUtil = (function() {\n try {\n // Use `util.types` for Node.js 10+.\n var types = freeModule && freeModule.require && freeModule.require('util').types;\n\n if (types) {\n return types;\n }\n\n // Legacy `process.binding('util')` for Node.js < 10.\n return freeProcess && freeProcess.binding && freeProcess.binding('util');\n } catch (e) {}\n}());\n\nmodule.exports = nodeUtil;\n","/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar nativeObjectToString = objectProto.toString;\n\n/**\n * Converts `value` to a string using `Object.prototype.toString`.\n *\n * @private\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n */\nfunction objectToString(value) {\n return nativeObjectToString.call(value);\n}\n\nmodule.exports = objectToString;\n","/**\n * Creates a unary function that invokes `func` with its argument transformed.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {Function} transform The argument transform.\n * @returns {Function} Returns the new function.\n */\nfunction overArg(func, transform) {\n return function(arg) {\n return func(transform(arg));\n };\n}\n\nmodule.exports = overArg;\n","var apply = require('./_apply');\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeMax = Math.max;\n\n/**\n * A specialized version of `baseRest` which transforms the rest array.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @param {Function} transform The rest array transform.\n * @returns {Function} Returns the new function.\n */\nfunction overRest(func, start, transform) {\n start = nativeMax(start === undefined ? (func.length - 1) : start, 0);\n return function() {\n var args = arguments,\n index = -1,\n length = nativeMax(args.length - start, 0),\n array = Array(length);\n\n while (++index < length) {\n array[index] = args[start + index];\n }\n index = -1;\n var otherArgs = Array(start + 1);\n while (++index < start) {\n otherArgs[index] = args[index];\n }\n otherArgs[start] = transform(array);\n return apply(func, this, otherArgs);\n };\n}\n\nmodule.exports = overRest;\n","var freeGlobal = require('./_freeGlobal');\n\n/** Detect free variable `self`. */\nvar freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n/** Used as a reference to the global object. */\nvar root = freeGlobal || freeSelf || Function('return this')();\n\nmodule.exports = root;\n","/** Used to stand-in for `undefined` hash values. */\nvar HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n/**\n * Adds `value` to the array cache.\n *\n * @private\n * @name add\n * @memberOf SetCache\n * @alias push\n * @param {*} value The value to cache.\n * @returns {Object} Returns the cache instance.\n */\nfunction setCacheAdd(value) {\n this.__data__.set(value, HASH_UNDEFINED);\n return this;\n}\n\nmodule.exports = setCacheAdd;\n","/**\n * Checks if `value` is in the array cache.\n *\n * @private\n * @name has\n * @memberOf SetCache\n * @param {*} value The value to search for.\n * @returns {number} Returns `true` if `value` is found, else `false`.\n */\nfunction setCacheHas(value) {\n return this.__data__.has(value);\n}\n\nmodule.exports = setCacheHas;\n","/**\n * Converts `set` to an array of its values.\n *\n * @private\n * @param {Object} set The set to convert.\n * @returns {Array} Returns the values.\n */\nfunction setToArray(set) {\n var index = -1,\n result = Array(set.size);\n\n set.forEach(function(value) {\n result[++index] = value;\n });\n return result;\n}\n\nmodule.exports = setToArray;\n","var baseSetToString = require('./_baseSetToString'),\n shortOut = require('./_shortOut');\n\n/**\n * Sets the `toString` method of `func` to return `string`.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\nvar setToString = shortOut(baseSetToString);\n\nmodule.exports = setToString;\n","/** Used to detect hot functions by number of calls within a span of milliseconds. */\nvar HOT_COUNT = 800,\n HOT_SPAN = 16;\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeNow = Date.now;\n\n/**\n * Creates a function that'll short out and invoke `identity` instead\n * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`\n * milliseconds.\n *\n * @private\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new shortable function.\n */\nfunction shortOut(func) {\n var count = 0,\n lastCalled = 0;\n\n return function() {\n var stamp = nativeNow(),\n remaining = HOT_SPAN - (stamp - lastCalled);\n\n lastCalled = stamp;\n if (remaining > 0) {\n if (++count >= HOT_COUNT) {\n return arguments[0];\n }\n } else {\n count = 0;\n }\n return func.apply(undefined, arguments);\n };\n}\n\nmodule.exports = shortOut;\n","var ListCache = require('./_ListCache');\n\n/**\n * Removes all key-value entries from the stack.\n *\n * @private\n * @name clear\n * @memberOf Stack\n */\nfunction stackClear() {\n this.__data__ = new ListCache;\n this.size = 0;\n}\n\nmodule.exports = stackClear;\n","/**\n * Removes `key` and its value from the stack.\n *\n * @private\n * @name delete\n * @memberOf Stack\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction stackDelete(key) {\n var data = this.__data__,\n result = data['delete'](key);\n\n this.size = data.size;\n return result;\n}\n\nmodule.exports = stackDelete;\n","/**\n * Gets the stack value for `key`.\n *\n * @private\n * @name get\n * @memberOf Stack\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction stackGet(key) {\n return this.__data__.get(key);\n}\n\nmodule.exports = stackGet;\n","/**\n * Checks if a stack value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Stack\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction stackHas(key) {\n return this.__data__.has(key);\n}\n\nmodule.exports = stackHas;\n","var ListCache = require('./_ListCache'),\n Map = require('./_Map'),\n MapCache = require('./_MapCache');\n\n/** Used as the size to enable large array optimizations. */\nvar LARGE_ARRAY_SIZE = 200;\n\n/**\n * Sets the stack `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Stack\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the stack cache instance.\n */\nfunction stackSet(key, value) {\n var data = this.__data__;\n if (data instanceof ListCache) {\n var pairs = data.__data__;\n if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {\n pairs.push([key, value]);\n this.size = ++data.size;\n return this;\n }\n data = this.__data__ = new MapCache(pairs);\n }\n data.set(key, value);\n this.size = data.size;\n return this;\n}\n\nmodule.exports = stackSet;\n","/**\n * A specialized version of `_.indexOf` which performs strict equality\n * comparisons of values, i.e. `===`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\nfunction strictIndexOf(array, value, fromIndex) {\n var index = fromIndex - 1,\n length = array.length;\n\n while (++index < length) {\n if (array[index] === value) {\n return index;\n }\n }\n return -1;\n}\n\nmodule.exports = strictIndexOf;\n","var memoizeCapped = require('./_memoizeCapped');\n\n/** Used to match property names within property paths. */\nvar rePropName = /[^.[\\]]+|\\[(?:(-?\\d+(?:\\.\\d+)?)|([\"'])((?:(?!\\2)[^\\\\]|\\\\.)*?)\\2)\\]|(?=(?:\\.|\\[\\])(?:\\.|\\[\\]|$))/g;\n\n/** Used to match backslashes in property paths. */\nvar reEscapeChar = /\\\\(\\\\)?/g;\n\n/**\n * Converts `string` to a property path array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the property path array.\n */\nvar stringToPath = memoizeCapped(function(string) {\n var result = [];\n if (string.charCodeAt(0) === 46 /* . */) {\n result.push('');\n }\n string.replace(rePropName, function(match, number, quote, subString) {\n result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match));\n });\n return result;\n});\n\nmodule.exports = stringToPath;\n","var isSymbol = require('./isSymbol');\n\n/** Used as references for various `Number` constants. */\nvar INFINITY = 1 / 0;\n\n/**\n * Converts `value` to a string key if it's not a string or symbol.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {string|symbol} Returns the key.\n */\nfunction toKey(value) {\n if (typeof value == 'string' || isSymbol(value)) {\n return value;\n }\n var result = (value + '');\n return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n}\n\nmodule.exports = toKey;\n","/** Used for built-in method references. */\nvar funcProto = Function.prototype;\n\n/** Used to resolve the decompiled source of functions. */\nvar funcToString = funcProto.toString;\n\n/**\n * Converts `func` to its source code.\n *\n * @private\n * @param {Function} func The function to convert.\n * @returns {string} Returns the source code.\n */\nfunction toSource(func) {\n if (func != null) {\n try {\n return funcToString.call(func);\n } catch (e) {}\n try {\n return (func + '');\n } catch (e) {}\n }\n return '';\n}\n\nmodule.exports = toSource;\n","/** Used to match a single whitespace character. */\nvar reWhitespace = /\\s/;\n\n/**\n * Used by `_.trim` and `_.trimEnd` to get the index of the last non-whitespace\n * character of `string`.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {number} Returns the index of the last non-whitespace character.\n */\nfunction trimmedEndIndex(string) {\n var index = string.length;\n\n while (index-- && reWhitespace.test(string.charAt(index))) {}\n return index;\n}\n\nmodule.exports = trimmedEndIndex;\n","var copyObject = require('./_copyObject'),\n createAssigner = require('./_createAssigner'),\n keysIn = require('./keysIn');\n\n/**\n * This method is like `_.assign` except that it iterates over own and\n * inherited source properties.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias extend\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.assign\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * function Bar() {\n * this.c = 3;\n * }\n *\n * Foo.prototype.b = 2;\n * Bar.prototype.d = 4;\n *\n * _.assignIn({ 'a': 0 }, new Foo, new Bar);\n * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }\n */\nvar assignIn = createAssigner(function(object, source) {\n copyObject(source, keysIn(source), object);\n});\n\nmodule.exports = assignIn;\n","var baseAt = require('./_baseAt'),\n flatRest = require('./_flatRest');\n\n/**\n * Creates an array of values corresponding to `paths` of `object`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Array} Returns the picked values.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n *\n * _.at(object, ['a[0].b.c', 'a[1]']);\n * // => [3, 4]\n */\nvar at = flatRest(baseAt);\n\nmodule.exports = at;\n","var baseClone = require('./_baseClone');\n\n/** Used to compose bitmasks for cloning. */\nvar CLONE_SYMBOLS_FLAG = 4;\n\n/**\n * Creates a shallow clone of `value`.\n *\n * **Note:** This method is loosely based on the\n * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)\n * and supports cloning arrays, array buffers, booleans, date objects, maps,\n * numbers, `Object` objects, regexes, sets, strings, symbols, and typed\n * arrays. The own enumerable properties of `arguments` objects are cloned\n * as plain objects. An empty object is returned for uncloneable values such\n * as error objects, functions, DOM nodes, and WeakMaps.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to clone.\n * @returns {*} Returns the cloned value.\n * @see _.cloneDeep\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var shallow = _.clone(objects);\n * console.log(shallow[0] === objects[0]);\n * // => true\n */\nfunction clone(value) {\n return baseClone(value, CLONE_SYMBOLS_FLAG);\n}\n\nmodule.exports = clone;\n","/**\n * Creates an array with all falsey values removed. The values `false`, `null`,\n * `0`, `\"\"`, `undefined`, and `NaN` are falsey.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to compact.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * _.compact([0, 1, false, 2, '', 3]);\n * // => [1, 2, 3]\n */\nfunction compact(array) {\n var index = -1,\n length = array == null ? 0 : array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (value) {\n result[resIndex++] = value;\n }\n }\n return result;\n}\n\nmodule.exports = compact;\n","/**\n * Creates a function that returns `value`.\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Util\n * @param {*} value The value to return from the new function.\n * @returns {Function} Returns the new constant function.\n * @example\n *\n * var objects = _.times(2, _.constant({ 'a': 1 }));\n *\n * console.log(objects);\n * // => [{ 'a': 1 }, { 'a': 1 }]\n *\n * console.log(objects[0] === objects[1]);\n * // => true\n */\nfunction constant(value) {\n return function() {\n return value;\n };\n}\n\nmodule.exports = constant;\n","/**\n * Performs a\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * comparison between two values to determine if they are equivalent.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.eq(object, object);\n * // => true\n *\n * _.eq(object, other);\n * // => false\n *\n * _.eq('a', 'a');\n * // => true\n *\n * _.eq('a', Object('a'));\n * // => false\n *\n * _.eq(NaN, NaN);\n * // => true\n */\nfunction eq(value, other) {\n return value === other || (value !== value && other !== other);\n}\n\nmodule.exports = eq;\n","module.exports = require('./assignIn');\n","var arrayFilter = require('./_arrayFilter'),\n baseFilter = require('./_baseFilter'),\n baseIteratee = require('./_baseIteratee'),\n isArray = require('./isArray');\n\n/**\n * Iterates over elements of `collection`, returning an array of all elements\n * `predicate` returns truthy for. The predicate is invoked with three\n * arguments: (value, index|key, collection).\n *\n * **Note:** Unlike `_.remove`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n * @see _.reject\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': true },\n * { 'user': 'fred', 'age': 40, 'active': false }\n * ];\n *\n * _.filter(users, function(o) { return !o.active; });\n * // => objects for ['fred']\n *\n * // The `_.matches` iteratee shorthand.\n * _.filter(users, { 'age': 36, 'active': true });\n * // => objects for ['barney']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.filter(users, ['active', false]);\n * // => objects for ['fred']\n *\n * // The `_.property` iteratee shorthand.\n * _.filter(users, 'active');\n * // => objects for ['barney']\n *\n * // Combining several predicates using `_.overEvery` or `_.overSome`.\n * _.filter(users, _.overSome([{ 'age': 36 }, ['age', 40]]));\n * // => objects for ['fred', 'barney']\n */\nfunction filter(collection, predicate) {\n var func = isArray(collection) ? arrayFilter : baseFilter;\n return func(collection, baseIteratee(predicate, 3));\n}\n\nmodule.exports = filter;\n","module.exports = require('./head');\n","var baseFlatten = require('./_baseFlatten');\n\n/**\n * Flattens `array` a single level deep.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to flatten.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * _.flatten([1, [2, [3, [4]], 5]]);\n * // => [1, 2, [3, [4]], 5]\n */\nfunction flatten(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseFlatten(array, 1) : [];\n}\n\nmodule.exports = flatten;\n","var baseGet = require('./_baseGet');\n\n/**\n * Gets the value at `path` of `object`. If the resolved value is\n * `undefined`, the `defaultValue` is returned in its place.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.get(object, 'a[0].b.c');\n * // => 3\n *\n * _.get(object, ['a', '0', 'b', 'c']);\n * // => 3\n *\n * _.get(object, 'a.b.c', 'default');\n * // => 'default'\n */\nfunction get(object, path, defaultValue) {\n var result = object == null ? undefined : baseGet(object, path);\n return result === undefined ? defaultValue : result;\n}\n\nmodule.exports = get;\n","var baseHasIn = require('./_baseHasIn'),\n hasPath = require('./_hasPath');\n\n/**\n * Checks if `path` is a direct or inherited property of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n * @example\n *\n * var object = _.create({ 'a': _.create({ 'b': 2 }) });\n *\n * _.hasIn(object, 'a');\n * // => true\n *\n * _.hasIn(object, 'a.b');\n * // => true\n *\n * _.hasIn(object, ['a', 'b']);\n * // => true\n *\n * _.hasIn(object, 'b');\n * // => false\n */\nfunction hasIn(object, path) {\n return object != null && hasPath(object, path, baseHasIn);\n}\n\nmodule.exports = hasIn;\n","/**\n * Gets the first element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @alias first\n * @category Array\n * @param {Array} array The array to query.\n * @returns {*} Returns the first element of `array`.\n * @example\n *\n * _.head([1, 2, 3]);\n * // => 1\n *\n * _.head([]);\n * // => undefined\n */\nfunction head(array) {\n return (array && array.length) ? array[0] : undefined;\n}\n\nmodule.exports = head;\n","/**\n * This method returns the first argument it receives.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Util\n * @param {*} value Any value.\n * @returns {*} Returns `value`.\n * @example\n *\n * var object = { 'a': 1 };\n *\n * console.log(_.identity(object) === object);\n * // => true\n */\nfunction identity(value) {\n return value;\n}\n\nmodule.exports = identity;\n","var baseIndexOf = require('./_baseIndexOf'),\n isArrayLike = require('./isArrayLike'),\n isString = require('./isString'),\n toInteger = require('./toInteger'),\n values = require('./values');\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeMax = Math.max;\n\n/**\n * Checks if `value` is in `collection`. If `collection` is a string, it's\n * checked for a substring of `value`, otherwise\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * is used for equality comparisons. If `fromIndex` is negative, it's used as\n * the offset from the end of `collection`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object|string} collection The collection to inspect.\n * @param {*} value The value to search for.\n * @param {number} [fromIndex=0] The index to search from.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.\n * @returns {boolean} Returns `true` if `value` is found, else `false`.\n * @example\n *\n * _.includes([1, 2, 3], 1);\n * // => true\n *\n * _.includes([1, 2, 3], 1, 2);\n * // => false\n *\n * _.includes({ 'a': 1, 'b': 2 }, 1);\n * // => true\n *\n * _.includes('abcd', 'bc');\n * // => true\n */\nfunction includes(collection, value, fromIndex, guard) {\n collection = isArrayLike(collection) ? collection : values(collection);\n fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0;\n\n var length = collection.length;\n if (fromIndex < 0) {\n fromIndex = nativeMax(length + fromIndex, 0);\n }\n return isString(collection)\n ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1)\n : (!!length && baseIndexOf(collection, value, fromIndex) > -1);\n}\n\nmodule.exports = includes;\n","var baseIsArguments = require('./_baseIsArguments'),\n isObjectLike = require('./isObjectLike');\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/** Built-in value references. */\nvar propertyIsEnumerable = objectProto.propertyIsEnumerable;\n\n/**\n * Checks if `value` is likely an `arguments` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n * else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\nvar isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {\n return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&\n !propertyIsEnumerable.call(value, 'callee');\n};\n\nmodule.exports = isArguments;\n","/**\n * Checks if `value` is classified as an `Array` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array, else `false`.\n * @example\n *\n * _.isArray([1, 2, 3]);\n * // => true\n *\n * _.isArray(document.body.children);\n * // => false\n *\n * _.isArray('abc');\n * // => false\n *\n * _.isArray(_.noop);\n * // => false\n */\nvar isArray = Array.isArray;\n\nmodule.exports = isArray;\n","var isFunction = require('./isFunction'),\n isLength = require('./isLength');\n\n/**\n * Checks if `value` is array-like. A value is considered array-like if it's\n * not a function and has a `value.length` that's an integer greater than or\n * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n * @example\n *\n * _.isArrayLike([1, 2, 3]);\n * // => true\n *\n * _.isArrayLike(document.body.children);\n * // => true\n *\n * _.isArrayLike('abc');\n * // => true\n *\n * _.isArrayLike(_.noop);\n * // => false\n */\nfunction isArrayLike(value) {\n return value != null && isLength(value.length) && !isFunction(value);\n}\n\nmodule.exports = isArrayLike;\n","var root = require('./_root'),\n stubFalse = require('./stubFalse');\n\n/** Detect free variable `exports`. */\nvar freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n/** Detect free variable `module`. */\nvar freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n/** Detect the popular CommonJS extension `module.exports`. */\nvar moduleExports = freeModule && freeModule.exports === freeExports;\n\n/** Built-in value references. */\nvar Buffer = moduleExports ? root.Buffer : undefined;\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined;\n\n/**\n * Checks if `value` is a buffer.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.\n * @example\n *\n * _.isBuffer(new Buffer(2));\n * // => true\n *\n * _.isBuffer(new Uint8Array(2));\n * // => false\n */\nvar isBuffer = nativeIsBuffer || stubFalse;\n\nmodule.exports = isBuffer;\n","var baseKeys = require('./_baseKeys'),\n getTag = require('./_getTag'),\n isArguments = require('./isArguments'),\n isArray = require('./isArray'),\n isArrayLike = require('./isArrayLike'),\n isBuffer = require('./isBuffer'),\n isPrototype = require('./_isPrototype'),\n isTypedArray = require('./isTypedArray');\n\n/** `Object#toString` result references. */\nvar mapTag = '[object Map]',\n setTag = '[object Set]';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Checks if `value` is an empty object, collection, map, or set.\n *\n * Objects are considered empty if they have no own enumerable string keyed\n * properties.\n *\n * Array-like values such as `arguments` objects, arrays, buffers, strings, or\n * jQuery-like collections are considered empty if they have a `length` of `0`.\n * Similarly, maps and sets are considered empty if they have a `size` of `0`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is empty, else `false`.\n * @example\n *\n * _.isEmpty(null);\n * // => true\n *\n * _.isEmpty(true);\n * // => true\n *\n * _.isEmpty(1);\n * // => true\n *\n * _.isEmpty([1, 2, 3]);\n * // => false\n *\n * _.isEmpty({ 'a': 1 });\n * // => false\n */\nfunction isEmpty(value) {\n if (value == null) {\n return true;\n }\n if (isArrayLike(value) &&\n (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||\n isBuffer(value) || isTypedArray(value) || isArguments(value))) {\n return !value.length;\n }\n var tag = getTag(value);\n if (tag == mapTag || tag == setTag) {\n return !value.size;\n }\n if (isPrototype(value)) {\n return !baseKeys(value).length;\n }\n for (var key in value) {\n if (hasOwnProperty.call(value, key)) {\n return false;\n }\n }\n return true;\n}\n\nmodule.exports = isEmpty;\n","var baseGetTag = require('./_baseGetTag'),\n isObject = require('./isObject');\n\n/** `Object#toString` result references. */\nvar asyncTag = '[object AsyncFunction]',\n funcTag = '[object Function]',\n genTag = '[object GeneratorFunction]',\n proxyTag = '[object Proxy]';\n\n/**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a function, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\nfunction isFunction(value) {\n if (!isObject(value)) {\n return false;\n }\n // The use of `Object#toString` avoids issues with the `typeof` operator\n // in Safari 9 which returns 'object' for typed arrays and other constructors.\n var tag = baseGetTag(value);\n return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;\n}\n\nmodule.exports = isFunction;\n","/** Used as references for various `Number` constants. */\nvar MAX_SAFE_INTEGER = 9007199254740991;\n\n/**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This method is loosely based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n * @example\n *\n * _.isLength(3);\n * // => true\n *\n * _.isLength(Number.MIN_VALUE);\n * // => false\n *\n * _.isLength(Infinity);\n * // => false\n *\n * _.isLength('3');\n * // => false\n */\nfunction isLength(value) {\n return typeof value == 'number' &&\n value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n}\n\nmodule.exports = isLength;\n","var baseIsMap = require('./_baseIsMap'),\n baseUnary = require('./_baseUnary'),\n nodeUtil = require('./_nodeUtil');\n\n/* Node.js helper references. */\nvar nodeIsMap = nodeUtil && nodeUtil.isMap;\n\n/**\n * Checks if `value` is classified as a `Map` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n * @example\n *\n * _.isMap(new Map);\n * // => true\n *\n * _.isMap(new WeakMap);\n * // => false\n */\nvar isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;\n\nmodule.exports = isMap;\n","var baseGetTag = require('./_baseGetTag'),\n isObjectLike = require('./isObjectLike');\n\n/** `Object#toString` result references. */\nvar numberTag = '[object Number]';\n\n/**\n * Checks if `value` is classified as a `Number` primitive or object.\n *\n * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are\n * classified as numbers, use the `_.isFinite` method.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a number, else `false`.\n * @example\n *\n * _.isNumber(3);\n * // => true\n *\n * _.isNumber(Number.MIN_VALUE);\n * // => true\n *\n * _.isNumber(Infinity);\n * // => true\n *\n * _.isNumber('3');\n * // => false\n */\nfunction isNumber(value) {\n return typeof value == 'number' ||\n (isObjectLike(value) && baseGetTag(value) == numberTag);\n}\n\nmodule.exports = isNumber;\n","/**\n * Checks if `value` is the\n * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\nfunction isObject(value) {\n var type = typeof value;\n return value != null && (type == 'object' || type == 'function');\n}\n\nmodule.exports = isObject;\n","/**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\nfunction isObjectLike(value) {\n return value != null && typeof value == 'object';\n}\n\nmodule.exports = isObjectLike;\n","var baseGetTag = require('./_baseGetTag'),\n getPrototype = require('./_getPrototype'),\n isObjectLike = require('./isObjectLike');\n\n/** `Object#toString` result references. */\nvar objectTag = '[object Object]';\n\n/** Used for built-in method references. */\nvar funcProto = Function.prototype,\n objectProto = Object.prototype;\n\n/** Used to resolve the decompiled source of functions. */\nvar funcToString = funcProto.toString;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/** Used to infer the `Object` constructor. */\nvar objectCtorString = funcToString.call(Object);\n\n/**\n * Checks if `value` is a plain object, that is, an object created by the\n * `Object` constructor or one with a `[[Prototype]]` of `null`.\n *\n * @static\n * @memberOf _\n * @since 0.8.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * _.isPlainObject(new Foo);\n * // => false\n *\n * _.isPlainObject([1, 2, 3]);\n * // => false\n *\n * _.isPlainObject({ 'x': 0, 'y': 0 });\n * // => true\n *\n * _.isPlainObject(Object.create(null));\n * // => true\n */\nfunction isPlainObject(value) {\n if (!isObjectLike(value) || baseGetTag(value) != objectTag) {\n return false;\n }\n var proto = getPrototype(value);\n if (proto === null) {\n return true;\n }\n var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;\n return typeof Ctor == 'function' && Ctor instanceof Ctor &&\n funcToString.call(Ctor) == objectCtorString;\n}\n\nmodule.exports = isPlainObject;\n","var baseIsSet = require('./_baseIsSet'),\n baseUnary = require('./_baseUnary'),\n nodeUtil = require('./_nodeUtil');\n\n/* Node.js helper references. */\nvar nodeIsSet = nodeUtil && nodeUtil.isSet;\n\n/**\n * Checks if `value` is classified as a `Set` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n * @example\n *\n * _.isSet(new Set);\n * // => true\n *\n * _.isSet(new WeakSet);\n * // => false\n */\nvar isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;\n\nmodule.exports = isSet;\n","var baseGetTag = require('./_baseGetTag'),\n isArray = require('./isArray'),\n isObjectLike = require('./isObjectLike');\n\n/** `Object#toString` result references. */\nvar stringTag = '[object String]';\n\n/**\n * Checks if `value` is classified as a `String` primitive or object.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a string, else `false`.\n * @example\n *\n * _.isString('abc');\n * // => true\n *\n * _.isString(1);\n * // => false\n */\nfunction isString(value) {\n return typeof value == 'string' ||\n (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);\n}\n\nmodule.exports = isString;\n","var baseGetTag = require('./_baseGetTag'),\n isObjectLike = require('./isObjectLike');\n\n/** `Object#toString` result references. */\nvar symbolTag = '[object Symbol]';\n\n/**\n * Checks if `value` is classified as a `Symbol` primitive or object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n * @example\n *\n * _.isSymbol(Symbol.iterator);\n * // => true\n *\n * _.isSymbol('abc');\n * // => false\n */\nfunction isSymbol(value) {\n return typeof value == 'symbol' ||\n (isObjectLike(value) && baseGetTag(value) == symbolTag);\n}\n\nmodule.exports = isSymbol;\n","var baseIsTypedArray = require('./_baseIsTypedArray'),\n baseUnary = require('./_baseUnary'),\n nodeUtil = require('./_nodeUtil');\n\n/* Node.js helper references. */\nvar nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;\n\n/**\n * Checks if `value` is classified as a typed array.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n * @example\n *\n * _.isTypedArray(new Uint8Array);\n * // => true\n *\n * _.isTypedArray([]);\n * // => false\n */\nvar isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;\n\nmodule.exports = isTypedArray;\n","/**\n * Checks if `value` is `undefined`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.\n * @example\n *\n * _.isUndefined(void 0);\n * // => true\n *\n * _.isUndefined(null);\n * // => false\n */\nfunction isUndefined(value) {\n return value === undefined;\n}\n\nmodule.exports = isUndefined;\n","var arrayLikeKeys = require('./_arrayLikeKeys'),\n baseKeys = require('./_baseKeys'),\n isArrayLike = require('./isArrayLike');\n\n/**\n * Creates an array of the own enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects. See the\n * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * for more details.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keys(new Foo);\n * // => ['a', 'b'] (iteration order is not guaranteed)\n *\n * _.keys('hi');\n * // => ['0', '1']\n */\nfunction keys(object) {\n return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);\n}\n\nmodule.exports = keys;\n","var arrayLikeKeys = require('./_arrayLikeKeys'),\n baseKeysIn = require('./_baseKeysIn'),\n isArrayLike = require('./isArrayLike');\n\n/**\n * Creates an array of the own and inherited enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keysIn(new Foo);\n * // => ['a', 'b', 'c'] (iteration order is not guaranteed)\n */\nfunction keysIn(object) {\n return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);\n}\n\nmodule.exports = keysIn;\n","/**\n * Gets the last element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {*} Returns the last element of `array`.\n * @example\n *\n * _.last([1, 2, 3]);\n * // => 3\n */\nfunction last(array) {\n var length = array == null ? 0 : array.length;\n return length ? array[length - 1] : undefined;\n}\n\nmodule.exports = last;\n","/**\n * @license\n * Lodash \n * Based on Underscore.js 1.8.3 \n * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors\n */\n;(function() {\n\n /** Used as a safe reference for `undefined` in pre-ES5 environments. */\n var undefined;\n\n /** Used as the semantic version number. */\n var VERSION = '4.17.21';\n\n /** Used as the size to enable large array optimizations. */\n var LARGE_ARRAY_SIZE = 200;\n\n /** Error message constants. */\n var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.',\n FUNC_ERROR_TEXT = 'Expected a function',\n INVALID_TEMPL_VAR_ERROR_TEXT = 'Invalid `variable` option passed into `_.template`';\n\n /** Used to stand-in for `undefined` hash values. */\n var HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n /** Used as the maximum memoize cache size. */\n var MAX_MEMOIZE_SIZE = 500;\n\n /** Used as the internal argument placeholder. */\n var PLACEHOLDER = '__lodash_placeholder__';\n\n /** Used to compose bitmasks for cloning. */\n var CLONE_DEEP_FLAG = 1,\n CLONE_FLAT_FLAG = 2,\n CLONE_SYMBOLS_FLAG = 4;\n\n /** Used to compose bitmasks for value comparisons. */\n var COMPARE_PARTIAL_FLAG = 1,\n COMPARE_UNORDERED_FLAG = 2;\n\n /** Used to compose bitmasks for function metadata. */\n var WRAP_BIND_FLAG = 1,\n WRAP_BIND_KEY_FLAG = 2,\n WRAP_CURRY_BOUND_FLAG = 4,\n WRAP_CURRY_FLAG = 8,\n WRAP_CURRY_RIGHT_FLAG = 16,\n WRAP_PARTIAL_FLAG = 32,\n WRAP_PARTIAL_RIGHT_FLAG = 64,\n WRAP_ARY_FLAG = 128,\n WRAP_REARG_FLAG = 256,\n WRAP_FLIP_FLAG = 512;\n\n /** Used as default options for `_.truncate`. */\n var DEFAULT_TRUNC_LENGTH = 30,\n DEFAULT_TRUNC_OMISSION = '...';\n\n /** Used to detect hot functions by number of calls within a span of milliseconds. */\n var HOT_COUNT = 800,\n HOT_SPAN = 16;\n\n /** Used to indicate the type of lazy iteratees. */\n var LAZY_FILTER_FLAG = 1,\n LAZY_MAP_FLAG = 2,\n LAZY_WHILE_FLAG = 3;\n\n /** Used as references for various `Number` constants. */\n var INFINITY = 1 / 0,\n MAX_SAFE_INTEGER = 9007199254740991,\n MAX_INTEGER = 1.7976931348623157e+308,\n NAN = 0 / 0;\n\n /** Used as references for the maximum length and index of an array. */\n var MAX_ARRAY_LENGTH = 4294967295,\n MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,\n HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;\n\n /** Used to associate wrap methods with their bit flags. */\n var wrapFlags = [\n ['ary', WRAP_ARY_FLAG],\n ['bind', WRAP_BIND_FLAG],\n ['bindKey', WRAP_BIND_KEY_FLAG],\n ['curry', WRAP_CURRY_FLAG],\n ['curryRight', WRAP_CURRY_RIGHT_FLAG],\n ['flip', WRAP_FLIP_FLAG],\n ['partial', WRAP_PARTIAL_FLAG],\n ['partialRight', WRAP_PARTIAL_RIGHT_FLAG],\n ['rearg', WRAP_REARG_FLAG]\n ];\n\n /** `Object#toString` result references. */\n var argsTag = '[object Arguments]',\n arrayTag = '[object Array]',\n asyncTag = '[object AsyncFunction]',\n boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n domExcTag = '[object DOMException]',\n errorTag = '[object Error]',\n funcTag = '[object Function]',\n genTag = '[object GeneratorFunction]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n nullTag = '[object Null]',\n objectTag = '[object Object]',\n promiseTag = '[object Promise]',\n proxyTag = '[object Proxy]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n symbolTag = '[object Symbol]',\n undefinedTag = '[object Undefined]',\n weakMapTag = '[object WeakMap]',\n weakSetTag = '[object WeakSet]';\n\n var arrayBufferTag = '[object ArrayBuffer]',\n dataViewTag = '[object DataView]',\n float32Tag = '[object Float32Array]',\n float64Tag = '[object Float64Array]',\n int8Tag = '[object Int8Array]',\n int16Tag = '[object Int16Array]',\n int32Tag = '[object Int32Array]',\n uint8Tag = '[object Uint8Array]',\n uint8ClampedTag = '[object Uint8ClampedArray]',\n uint16Tag = '[object Uint16Array]',\n uint32Tag = '[object Uint32Array]';\n\n /** Used to match empty string literals in compiled template source. */\n var reEmptyStringLeading = /\\b__p \\+= '';/g,\n reEmptyStringMiddle = /\\b(__p \\+=) '' \\+/g,\n reEmptyStringTrailing = /(__e\\(.*?\\)|\\b__t\\)) \\+\\n'';/g;\n\n /** Used to match HTML entities and HTML characters. */\n var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,\n reUnescapedHtml = /[&<>\"']/g,\n reHasEscapedHtml = RegExp(reEscapedHtml.source),\n reHasUnescapedHtml = RegExp(reUnescapedHtml.source);\n\n /** Used to match template delimiters. */\n var reEscape = /<%-([\\s\\S]+?)%>/g,\n reEvaluate = /<%([\\s\\S]+?)%>/g,\n reInterpolate = /<%=([\\s\\S]+?)%>/g;\n\n /** Used to match property names within property paths. */\n var reIsDeepProp = /\\.|\\[(?:[^[\\]]*|([\"'])(?:(?!\\1)[^\\\\]|\\\\.)*?\\1)\\]/,\n reIsPlainProp = /^\\w*$/,\n rePropName = /[^.[\\]]+|\\[(?:(-?\\d+(?:\\.\\d+)?)|([\"'])((?:(?!\\2)[^\\\\]|\\\\.)*?)\\2)\\]|(?=(?:\\.|\\[\\])(?:\\.|\\[\\]|$))/g;\n\n /**\n * Used to match `RegExp`\n * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).\n */\n var reRegExpChar = /[\\\\^$.*+?()[\\]{}|]/g,\n reHasRegExpChar = RegExp(reRegExpChar.source);\n\n /** Used to match leading whitespace. */\n var reTrimStart = /^\\s+/;\n\n /** Used to match a single whitespace character. */\n var reWhitespace = /\\s/;\n\n /** Used to match wrap detail comments. */\n var reWrapComment = /\\{(?:\\n\\/\\* \\[wrapped with .+\\] \\*\\/)?\\n?/,\n reWrapDetails = /\\{\\n\\/\\* \\[wrapped with (.+)\\] \\*/,\n reSplitDetails = /,? & /;\n\n /** Used to match words composed of alphanumeric characters. */\n var reAsciiWord = /[^\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\x7f]+/g;\n\n /**\n * Used to validate the `validate` option in `_.template` variable.\n *\n * Forbids characters which could potentially change the meaning of the function argument definition:\n * - \"(),\" (modification of function parameters)\n * - \"=\" (default value)\n * - \"[]{}\" (destructuring of function parameters)\n * - \"/\" (beginning of a comment)\n * - whitespace\n */\n var reForbiddenIdentifierChars = /[()=,{}\\[\\]\\/\\s]/;\n\n /** Used to match backslashes in property paths. */\n var reEscapeChar = /\\\\(\\\\)?/g;\n\n /**\n * Used to match\n * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).\n */\n var reEsTemplate = /\\$\\{([^\\\\}]*(?:\\\\.[^\\\\}]*)*)\\}/g;\n\n /** Used to match `RegExp` flags from their coerced string values. */\n var reFlags = /\\w*$/;\n\n /** Used to detect bad signed hexadecimal string values. */\n var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;\n\n /** Used to detect binary string values. */\n var reIsBinary = /^0b[01]+$/i;\n\n /** Used to detect host constructors (Safari). */\n var reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\n /** Used to detect octal string values. */\n var reIsOctal = /^0o[0-7]+$/i;\n\n /** Used to detect unsigned integer values. */\n var reIsUint = /^(?:0|[1-9]\\d*)$/;\n\n /** Used to match Latin Unicode letters (excluding mathematical operators). */\n var reLatin = /[\\xc0-\\xd6\\xd8-\\xf6\\xf8-\\xff\\u0100-\\u017f]/g;\n\n /** Used to ensure capturing order of template delimiters. */\n var reNoMatch = /($^)/;\n\n /** Used to match unescaped characters in compiled string literals. */\n var reUnescapedString = /['\\n\\r\\u2028\\u2029\\\\]/g;\n\n /** Used to compose unicode character classes. */\n var rsAstralRange = '\\\\ud800-\\\\udfff',\n rsComboMarksRange = '\\\\u0300-\\\\u036f',\n reComboHalfMarksRange = '\\\\ufe20-\\\\ufe2f',\n rsComboSymbolsRange = '\\\\u20d0-\\\\u20ff',\n rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,\n rsDingbatRange = '\\\\u2700-\\\\u27bf',\n rsLowerRange = 'a-z\\\\xdf-\\\\xf6\\\\xf8-\\\\xff',\n rsMathOpRange = '\\\\xac\\\\xb1\\\\xd7\\\\xf7',\n rsNonCharRange = '\\\\x00-\\\\x2f\\\\x3a-\\\\x40\\\\x5b-\\\\x60\\\\x7b-\\\\xbf',\n rsPunctuationRange = '\\\\u2000-\\\\u206f',\n rsSpaceRange = ' \\\\t\\\\x0b\\\\f\\\\xa0\\\\ufeff\\\\n\\\\r\\\\u2028\\\\u2029\\\\u1680\\\\u180e\\\\u2000\\\\u2001\\\\u2002\\\\u2003\\\\u2004\\\\u2005\\\\u2006\\\\u2007\\\\u2008\\\\u2009\\\\u200a\\\\u202f\\\\u205f\\\\u3000',\n rsUpperRange = 'A-Z\\\\xc0-\\\\xd6\\\\xd8-\\\\xde',\n rsVarRange = '\\\\ufe0e\\\\ufe0f',\n rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;\n\n /** Used to compose unicode capture groups. */\n var rsApos = \"['\\u2019]\",\n rsAstral = '[' + rsAstralRange + ']',\n rsBreak = '[' + rsBreakRange + ']',\n rsCombo = '[' + rsComboRange + ']',\n rsDigits = '\\\\d+',\n rsDingbat = '[' + rsDingbatRange + ']',\n rsLower = '[' + rsLowerRange + ']',\n rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']',\n rsFitz = '\\\\ud83c[\\\\udffb-\\\\udfff]',\n rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',\n rsNonAstral = '[^' + rsAstralRange + ']',\n rsRegional = '(?:\\\\ud83c[\\\\udde6-\\\\uddff]){2}',\n rsSurrPair = '[\\\\ud800-\\\\udbff][\\\\udc00-\\\\udfff]',\n rsUpper = '[' + rsUpperRange + ']',\n rsZWJ = '\\\\u200d';\n\n /** Used to compose unicode regexes. */\n var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')',\n rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')',\n rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',\n rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',\n reOptMod = rsModifier + '?',\n rsOptVar = '[' + rsVarRange + ']?',\n rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',\n rsOrdLower = '\\\\d*(?:1st|2nd|3rd|(?![123])\\\\dth)(?=\\\\b|[A-Z_])',\n rsOrdUpper = '\\\\d*(?:1ST|2ND|3RD|(?![123])\\\\dTH)(?=\\\\b|[a-z_])',\n rsSeq = rsOptVar + reOptMod + rsOptJoin,\n rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq,\n rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';\n\n /** Used to match apostrophes. */\n var reApos = RegExp(rsApos, 'g');\n\n /**\n * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and\n * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).\n */\n var reComboMark = RegExp(rsCombo, 'g');\n\n /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */\n var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');\n\n /** Used to match complex or compound words. */\n var reUnicodeWord = RegExp([\n rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',\n rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')',\n rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower,\n rsUpper + '+' + rsOptContrUpper,\n rsOrdUpper,\n rsOrdLower,\n rsDigits,\n rsEmoji\n ].join('|'), 'g');\n\n /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */\n var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']');\n\n /** Used to detect strings that need a more robust regexp to match words. */\n var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/;\n\n /** Used to assign default `context` object properties. */\n var contextProps = [\n 'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array',\n 'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object',\n 'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array',\n 'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap',\n '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout'\n ];\n\n /** Used to make template sourceURLs easier to identify. */\n var templateCounter = -1;\n\n /** Used to identify `toStringTag` values of typed arrays. */\n var typedArrayTags = {};\n typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =\n typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =\n typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =\n typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =\n typedArrayTags[uint32Tag] = true;\n typedArrayTags[argsTag] = typedArrayTags[arrayTag] =\n typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =\n typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =\n typedArrayTags[errorTag] = typedArrayTags[funcTag] =\n typedArrayTags[mapTag] = typedArrayTags[numberTag] =\n typedArrayTags[objectTag] = typedArrayTags[regexpTag] =\n typedArrayTags[setTag] = typedArrayTags[stringTag] =\n typedArrayTags[weakMapTag] = false;\n\n /** Used to identify `toStringTag` values supported by `_.clone`. */\n var cloneableTags = {};\n cloneableTags[argsTag] = cloneableTags[arrayTag] =\n cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =\n cloneableTags[boolTag] = cloneableTags[dateTag] =\n cloneableTags[float32Tag] = cloneableTags[float64Tag] =\n cloneableTags[int8Tag] = cloneableTags[int16Tag] =\n cloneableTags[int32Tag] = cloneableTags[mapTag] =\n cloneableTags[numberTag] = cloneableTags[objectTag] =\n cloneableTags[regexpTag] = cloneableTags[setTag] =\n cloneableTags[stringTag] = cloneableTags[symbolTag] =\n cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =\n cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;\n cloneableTags[errorTag] = cloneableTags[funcTag] =\n cloneableTags[weakMapTag] = false;\n\n /** Used to map Latin Unicode letters to basic Latin letters. */\n var deburredLetters = {\n // Latin-1 Supplement block.\n '\\xc0': 'A', '\\xc1': 'A', '\\xc2': 'A', '\\xc3': 'A', '\\xc4': 'A', '\\xc5': 'A',\n '\\xe0': 'a', '\\xe1': 'a', '\\xe2': 'a', '\\xe3': 'a', '\\xe4': 'a', '\\xe5': 'a',\n '\\xc7': 'C', '\\xe7': 'c',\n '\\xd0': 'D', '\\xf0': 'd',\n '\\xc8': 'E', '\\xc9': 'E', '\\xca': 'E', '\\xcb': 'E',\n '\\xe8': 'e', '\\xe9': 'e', '\\xea': 'e', '\\xeb': 'e',\n '\\xcc': 'I', '\\xcd': 'I', '\\xce': 'I', '\\xcf': 'I',\n '\\xec': 'i', '\\xed': 'i', '\\xee': 'i', '\\xef': 'i',\n '\\xd1': 'N', '\\xf1': 'n',\n '\\xd2': 'O', '\\xd3': 'O', '\\xd4': 'O', '\\xd5': 'O', '\\xd6': 'O', '\\xd8': 'O',\n '\\xf2': 'o', '\\xf3': 'o', '\\xf4': 'o', '\\xf5': 'o', '\\xf6': 'o', '\\xf8': 'o',\n '\\xd9': 'U', '\\xda': 'U', '\\xdb': 'U', '\\xdc': 'U',\n '\\xf9': 'u', '\\xfa': 'u', '\\xfb': 'u', '\\xfc': 'u',\n '\\xdd': 'Y', '\\xfd': 'y', '\\xff': 'y',\n '\\xc6': 'Ae', '\\xe6': 'ae',\n '\\xde': 'Th', '\\xfe': 'th',\n '\\xdf': 'ss',\n // Latin Extended-A block.\n '\\u0100': 'A', '\\u0102': 'A', '\\u0104': 'A',\n '\\u0101': 'a', '\\u0103': 'a', '\\u0105': 'a',\n '\\u0106': 'C', '\\u0108': 'C', '\\u010a': 'C', '\\u010c': 'C',\n '\\u0107': 'c', '\\u0109': 'c', '\\u010b': 'c', '\\u010d': 'c',\n '\\u010e': 'D', '\\u0110': 'D', '\\u010f': 'd', '\\u0111': 'd',\n '\\u0112': 'E', '\\u0114': 'E', '\\u0116': 'E', '\\u0118': 'E', '\\u011a': 'E',\n '\\u0113': 'e', '\\u0115': 'e', '\\u0117': 'e', '\\u0119': 'e', '\\u011b': 'e',\n '\\u011c': 'G', '\\u011e': 'G', '\\u0120': 'G', '\\u0122': 'G',\n '\\u011d': 'g', '\\u011f': 'g', '\\u0121': 'g', '\\u0123': 'g',\n '\\u0124': 'H', '\\u0126': 'H', '\\u0125': 'h', '\\u0127': 'h',\n '\\u0128': 'I', '\\u012a': 'I', '\\u012c': 'I', '\\u012e': 'I', '\\u0130': 'I',\n '\\u0129': 'i', '\\u012b': 'i', '\\u012d': 'i', '\\u012f': 'i', '\\u0131': 'i',\n '\\u0134': 'J', '\\u0135': 'j',\n '\\u0136': 'K', '\\u0137': 'k', '\\u0138': 'k',\n '\\u0139': 'L', '\\u013b': 'L', '\\u013d': 'L', '\\u013f': 'L', '\\u0141': 'L',\n '\\u013a': 'l', '\\u013c': 'l', '\\u013e': 'l', '\\u0140': 'l', '\\u0142': 'l',\n '\\u0143': 'N', '\\u0145': 'N', '\\u0147': 'N', '\\u014a': 'N',\n '\\u0144': 'n', '\\u0146': 'n', '\\u0148': 'n', '\\u014b': 'n',\n '\\u014c': 'O', '\\u014e': 'O', '\\u0150': 'O',\n '\\u014d': 'o', '\\u014f': 'o', '\\u0151': 'o',\n '\\u0154': 'R', '\\u0156': 'R', '\\u0158': 'R',\n '\\u0155': 'r', '\\u0157': 'r', '\\u0159': 'r',\n '\\u015a': 'S', '\\u015c': 'S', '\\u015e': 'S', '\\u0160': 'S',\n '\\u015b': 's', '\\u015d': 's', '\\u015f': 's', '\\u0161': 's',\n '\\u0162': 'T', '\\u0164': 'T', '\\u0166': 'T',\n '\\u0163': 't', '\\u0165': 't', '\\u0167': 't',\n '\\u0168': 'U', '\\u016a': 'U', '\\u016c': 'U', '\\u016e': 'U', '\\u0170': 'U', '\\u0172': 'U',\n '\\u0169': 'u', '\\u016b': 'u', '\\u016d': 'u', '\\u016f': 'u', '\\u0171': 'u', '\\u0173': 'u',\n '\\u0174': 'W', '\\u0175': 'w',\n '\\u0176': 'Y', '\\u0177': 'y', '\\u0178': 'Y',\n '\\u0179': 'Z', '\\u017b': 'Z', '\\u017d': 'Z',\n '\\u017a': 'z', '\\u017c': 'z', '\\u017e': 'z',\n '\\u0132': 'IJ', '\\u0133': 'ij',\n '\\u0152': 'Oe', '\\u0153': 'oe',\n '\\u0149': \"'n\", '\\u017f': 's'\n };\n\n /** Used to map characters to HTML entities. */\n var htmlEscapes = {\n '&': '&',\n '<': '<',\n '>': '>',\n '\"': '"',\n \"'\": '''\n };\n\n /** Used to map HTML entities to characters. */\n var htmlUnescapes = {\n '&': '&',\n '<': '<',\n '>': '>',\n '"': '\"',\n ''': \"'\"\n };\n\n /** Used to escape characters for inclusion in compiled string literals. */\n var stringEscapes = {\n '\\\\': '\\\\',\n \"'\": \"'\",\n '\\n': 'n',\n '\\r': 'r',\n '\\u2028': 'u2028',\n '\\u2029': 'u2029'\n };\n\n /** Built-in method references without a dependency on `root`. */\n var freeParseFloat = parseFloat,\n freeParseInt = parseInt;\n\n /** Detect free variable `global` from Node.js. */\n var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;\n\n /** Detect free variable `self`. */\n var freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n /** Used as a reference to the global object. */\n var root = freeGlobal || freeSelf || Function('return this')();\n\n /** Detect free variable `exports`. */\n var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n /** Detect free variable `module`. */\n var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n /** Detect the popular CommonJS extension `module.exports`. */\n var moduleExports = freeModule && freeModule.exports === freeExports;\n\n /** Detect free variable `process` from Node.js. */\n var freeProcess = moduleExports && freeGlobal.process;\n\n /** Used to access faster Node.js helpers. */\n var nodeUtil = (function() {\n try {\n // Use `util.types` for Node.js 10+.\n var types = freeModule && freeModule.require && freeModule.require('util').types;\n\n if (types) {\n return types;\n }\n\n // Legacy `process.binding('util')` for Node.js < 10.\n return freeProcess && freeProcess.binding && freeProcess.binding('util');\n } catch (e) {}\n }());\n\n /* Node.js helper references. */\n var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer,\n nodeIsDate = nodeUtil && nodeUtil.isDate,\n nodeIsMap = nodeUtil && nodeUtil.isMap,\n nodeIsRegExp = nodeUtil && nodeUtil.isRegExp,\n nodeIsSet = nodeUtil && nodeUtil.isSet,\n nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;\n\n /*--------------------------------------------------------------------------*/\n\n /**\n * A faster alternative to `Function#apply`, this function invokes `func`\n * with the `this` binding of `thisArg` and the arguments of `args`.\n *\n * @private\n * @param {Function} func The function to invoke.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {Array} args The arguments to invoke `func` with.\n * @returns {*} Returns the result of `func`.\n */\n function apply(func, thisArg, args) {\n switch (args.length) {\n case 0: return func.call(thisArg);\n case 1: return func.call(thisArg, args[0]);\n case 2: return func.call(thisArg, args[0], args[1]);\n case 3: return func.call(thisArg, args[0], args[1], args[2]);\n }\n return func.apply(thisArg, args);\n }\n\n /**\n * A specialized version of `baseAggregator` for arrays.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} setter The function to set `accumulator` values.\n * @param {Function} iteratee The iteratee to transform keys.\n * @param {Object} accumulator The initial aggregated object.\n * @returns {Function} Returns `accumulator`.\n */\n function arrayAggregator(array, setter, iteratee, accumulator) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n var value = array[index];\n setter(accumulator, value, iteratee(value), array);\n }\n return accumulator;\n }\n\n /**\n * A specialized version of `_.forEach` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\n function arrayEach(array, iteratee) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (iteratee(array[index], index, array) === false) {\n break;\n }\n }\n return array;\n }\n\n /**\n * A specialized version of `_.forEachRight` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\n function arrayEachRight(array, iteratee) {\n var length = array == null ? 0 : array.length;\n\n while (length--) {\n if (iteratee(array[length], length, array) === false) {\n break;\n }\n }\n return array;\n }\n\n /**\n * A specialized version of `_.every` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if all elements pass the predicate check,\n * else `false`.\n */\n function arrayEvery(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (!predicate(array[index], index, array)) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * A specialized version of `_.filter` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n */\n function arrayFilter(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (predicate(value, index, array)) {\n result[resIndex++] = value;\n }\n }\n return result;\n }\n\n /**\n * A specialized version of `_.includes` for arrays without support for\n * specifying an index to search from.\n *\n * @private\n * @param {Array} [array] The array to inspect.\n * @param {*} target The value to search for.\n * @returns {boolean} Returns `true` if `target` is found, else `false`.\n */\n function arrayIncludes(array, value) {\n var length = array == null ? 0 : array.length;\n return !!length && baseIndexOf(array, value, 0) > -1;\n }\n\n /**\n * This function is like `arrayIncludes` except that it accepts a comparator.\n *\n * @private\n * @param {Array} [array] The array to inspect.\n * @param {*} target The value to search for.\n * @param {Function} comparator The comparator invoked per element.\n * @returns {boolean} Returns `true` if `target` is found, else `false`.\n */\n function arrayIncludesWith(array, value, comparator) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (comparator(value, array[index])) {\n return true;\n }\n }\n return false;\n }\n\n /**\n * A specialized version of `_.map` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n */\n function arrayMap(array, iteratee) {\n var index = -1,\n length = array == null ? 0 : array.length,\n result = Array(length);\n\n while (++index < length) {\n result[index] = iteratee(array[index], index, array);\n }\n return result;\n }\n\n /**\n * Appends the elements of `values` to `array`.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {Array} values The values to append.\n * @returns {Array} Returns `array`.\n */\n function arrayPush(array, values) {\n var index = -1,\n length = values.length,\n offset = array.length;\n\n while (++index < length) {\n array[offset + index] = values[index];\n }\n return array;\n }\n\n /**\n * A specialized version of `_.reduce` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @param {boolean} [initAccum] Specify using the first element of `array` as\n * the initial value.\n * @returns {*} Returns the accumulated value.\n */\n function arrayReduce(array, iteratee, accumulator, initAccum) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n if (initAccum && length) {\n accumulator = array[++index];\n }\n while (++index < length) {\n accumulator = iteratee(accumulator, array[index], index, array);\n }\n return accumulator;\n }\n\n /**\n * A specialized version of `_.reduceRight` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @param {boolean} [initAccum] Specify using the last element of `array` as\n * the initial value.\n * @returns {*} Returns the accumulated value.\n */\n function arrayReduceRight(array, iteratee, accumulator, initAccum) {\n var length = array == null ? 0 : array.length;\n if (initAccum && length) {\n accumulator = array[--length];\n }\n while (length--) {\n accumulator = iteratee(accumulator, array[length], length, array);\n }\n return accumulator;\n }\n\n /**\n * A specialized version of `_.some` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n */\n function arraySome(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (predicate(array[index], index, array)) {\n return true;\n }\n }\n return false;\n }\n\n /**\n * Gets the size of an ASCII `string`.\n *\n * @private\n * @param {string} string The string inspect.\n * @returns {number} Returns the string size.\n */\n var asciiSize = baseProperty('length');\n\n /**\n * Converts an ASCII `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\n function asciiToArray(string) {\n return string.split('');\n }\n\n /**\n * Splits an ASCII `string` into an array of its words.\n *\n * @private\n * @param {string} The string to inspect.\n * @returns {Array} Returns the words of `string`.\n */\n function asciiWords(string) {\n return string.match(reAsciiWord) || [];\n }\n\n /**\n * The base implementation of methods like `_.findKey` and `_.findLastKey`,\n * without support for iteratee shorthands, which iterates over `collection`\n * using `eachFunc`.\n *\n * @private\n * @param {Array|Object} collection The collection to inspect.\n * @param {Function} predicate The function invoked per iteration.\n * @param {Function} eachFunc The function to iterate over `collection`.\n * @returns {*} Returns the found element or its key, else `undefined`.\n */\n function baseFindKey(collection, predicate, eachFunc) {\n var result;\n eachFunc(collection, function(value, key, collection) {\n if (predicate(value, key, collection)) {\n result = key;\n return false;\n }\n });\n return result;\n }\n\n /**\n * The base implementation of `_.findIndex` and `_.findLastIndex` without\n * support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} predicate The function invoked per iteration.\n * @param {number} fromIndex The index to search from.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function baseFindIndex(array, predicate, fromIndex, fromRight) {\n var length = array.length,\n index = fromIndex + (fromRight ? 1 : -1);\n\n while ((fromRight ? index-- : ++index < length)) {\n if (predicate(array[index], index, array)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * The base implementation of `_.indexOf` without `fromIndex` bounds checks.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function baseIndexOf(array, value, fromIndex) {\n return value === value\n ? strictIndexOf(array, value, fromIndex)\n : baseFindIndex(array, baseIsNaN, fromIndex);\n }\n\n /**\n * This function is like `baseIndexOf` except that it accepts a comparator.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @param {Function} comparator The comparator invoked per element.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function baseIndexOfWith(array, value, fromIndex, comparator) {\n var index = fromIndex - 1,\n length = array.length;\n\n while (++index < length) {\n if (comparator(array[index], value)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * The base implementation of `_.isNaN` without support for number objects.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n */\n function baseIsNaN(value) {\n return value !== value;\n }\n\n /**\n * The base implementation of `_.mean` and `_.meanBy` without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {number} Returns the mean.\n */\n function baseMean(array, iteratee) {\n var length = array == null ? 0 : array.length;\n return length ? (baseSum(array, iteratee) / length) : NAN;\n }\n\n /**\n * The base implementation of `_.property` without support for deep paths.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @returns {Function} Returns the new accessor function.\n */\n function baseProperty(key) {\n return function(object) {\n return object == null ? undefined : object[key];\n };\n }\n\n /**\n * The base implementation of `_.propertyOf` without support for deep paths.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Function} Returns the new accessor function.\n */\n function basePropertyOf(object) {\n return function(key) {\n return object == null ? undefined : object[key];\n };\n }\n\n /**\n * The base implementation of `_.reduce` and `_.reduceRight`, without support\n * for iteratee shorthands, which iterates over `collection` using `eachFunc`.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} accumulator The initial value.\n * @param {boolean} initAccum Specify using the first or last element of\n * `collection` as the initial value.\n * @param {Function} eachFunc The function to iterate over `collection`.\n * @returns {*} Returns the accumulated value.\n */\n function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) {\n eachFunc(collection, function(value, index, collection) {\n accumulator = initAccum\n ? (initAccum = false, value)\n : iteratee(accumulator, value, index, collection);\n });\n return accumulator;\n }\n\n /**\n * The base implementation of `_.sortBy` which uses `comparer` to define the\n * sort order of `array` and replaces criteria objects with their corresponding\n * values.\n *\n * @private\n * @param {Array} array The array to sort.\n * @param {Function} comparer The function to define sort order.\n * @returns {Array} Returns `array`.\n */\n function baseSortBy(array, comparer) {\n var length = array.length;\n\n array.sort(comparer);\n while (length--) {\n array[length] = array[length].value;\n }\n return array;\n }\n\n /**\n * The base implementation of `_.sum` and `_.sumBy` without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {number} Returns the sum.\n */\n function baseSum(array, iteratee) {\n var result,\n index = -1,\n length = array.length;\n\n while (++index < length) {\n var current = iteratee(array[index]);\n if (current !== undefined) {\n result = result === undefined ? current : (result + current);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.times` without support for iteratee shorthands\n * or max array length checks.\n *\n * @private\n * @param {number} n The number of times to invoke `iteratee`.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the array of results.\n */\n function baseTimes(n, iteratee) {\n var index = -1,\n result = Array(n);\n\n while (++index < n) {\n result[index] = iteratee(index);\n }\n return result;\n }\n\n /**\n * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array\n * of key-value pairs for `object` corresponding to the property names of `props`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} props The property names to get values for.\n * @returns {Object} Returns the key-value pairs.\n */\n function baseToPairs(object, props) {\n return arrayMap(props, function(key) {\n return [key, object[key]];\n });\n }\n\n /**\n * The base implementation of `_.trim`.\n *\n * @private\n * @param {string} string The string to trim.\n * @returns {string} Returns the trimmed string.\n */\n function baseTrim(string) {\n return string\n ? string.slice(0, trimmedEndIndex(string) + 1).replace(reTrimStart, '')\n : string;\n }\n\n /**\n * The base implementation of `_.unary` without support for storing metadata.\n *\n * @private\n * @param {Function} func The function to cap arguments for.\n * @returns {Function} Returns the new capped function.\n */\n function baseUnary(func) {\n return function(value) {\n return func(value);\n };\n }\n\n /**\n * The base implementation of `_.values` and `_.valuesIn` which creates an\n * array of `object` property values corresponding to the property names\n * of `props`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} props The property names to get values for.\n * @returns {Object} Returns the array of property values.\n */\n function baseValues(object, props) {\n return arrayMap(props, function(key) {\n return object[key];\n });\n }\n\n /**\n * Checks if a `cache` value for `key` exists.\n *\n * @private\n * @param {Object} cache The cache to query.\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function cacheHas(cache, key) {\n return cache.has(key);\n }\n\n /**\n * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol\n * that is not found in the character symbols.\n *\n * @private\n * @param {Array} strSymbols The string symbols to inspect.\n * @param {Array} chrSymbols The character symbols to find.\n * @returns {number} Returns the index of the first unmatched string symbol.\n */\n function charsStartIndex(strSymbols, chrSymbols) {\n var index = -1,\n length = strSymbols.length;\n\n while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}\n return index;\n }\n\n /**\n * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol\n * that is not found in the character symbols.\n *\n * @private\n * @param {Array} strSymbols The string symbols to inspect.\n * @param {Array} chrSymbols The character symbols to find.\n * @returns {number} Returns the index of the last unmatched string symbol.\n */\n function charsEndIndex(strSymbols, chrSymbols) {\n var index = strSymbols.length;\n\n while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}\n return index;\n }\n\n /**\n * Gets the number of `placeholder` occurrences in `array`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} placeholder The placeholder to search for.\n * @returns {number} Returns the placeholder count.\n */\n function countHolders(array, placeholder) {\n var length = array.length,\n result = 0;\n\n while (length--) {\n if (array[length] === placeholder) {\n ++result;\n }\n }\n return result;\n }\n\n /**\n * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A\n * letters to basic Latin letters.\n *\n * @private\n * @param {string} letter The matched letter to deburr.\n * @returns {string} Returns the deburred letter.\n */\n var deburrLetter = basePropertyOf(deburredLetters);\n\n /**\n * Used by `_.escape` to convert characters to HTML entities.\n *\n * @private\n * @param {string} chr The matched character to escape.\n * @returns {string} Returns the escaped character.\n */\n var escapeHtmlChar = basePropertyOf(htmlEscapes);\n\n /**\n * Used by `_.template` to escape characters for inclusion in compiled string literals.\n *\n * @private\n * @param {string} chr The matched character to escape.\n * @returns {string} Returns the escaped character.\n */\n function escapeStringChar(chr) {\n return '\\\\' + stringEscapes[chr];\n }\n\n /**\n * Gets the value at `key` of `object`.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\n function getValue(object, key) {\n return object == null ? undefined : object[key];\n }\n\n /**\n * Checks if `string` contains Unicode symbols.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {boolean} Returns `true` if a symbol is found, else `false`.\n */\n function hasUnicode(string) {\n return reHasUnicode.test(string);\n }\n\n /**\n * Checks if `string` contains a word composed of Unicode symbols.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {boolean} Returns `true` if a word is found, else `false`.\n */\n function hasUnicodeWord(string) {\n return reHasUnicodeWord.test(string);\n }\n\n /**\n * Converts `iterator` to an array.\n *\n * @private\n * @param {Object} iterator The iterator to convert.\n * @returns {Array} Returns the converted array.\n */\n function iteratorToArray(iterator) {\n var data,\n result = [];\n\n while (!(data = iterator.next()).done) {\n result.push(data.value);\n }\n return result;\n }\n\n /**\n * Converts `map` to its key-value pairs.\n *\n * @private\n * @param {Object} map The map to convert.\n * @returns {Array} Returns the key-value pairs.\n */\n function mapToArray(map) {\n var index = -1,\n result = Array(map.size);\n\n map.forEach(function(value, key) {\n result[++index] = [key, value];\n });\n return result;\n }\n\n /**\n * Creates a unary function that invokes `func` with its argument transformed.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {Function} transform The argument transform.\n * @returns {Function} Returns the new function.\n */\n function overArg(func, transform) {\n return function(arg) {\n return func(transform(arg));\n };\n }\n\n /**\n * Replaces all `placeholder` elements in `array` with an internal placeholder\n * and returns an array of their indexes.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {*} placeholder The placeholder to replace.\n * @returns {Array} Returns the new array of placeholder indexes.\n */\n function replaceHolders(array, placeholder) {\n var index = -1,\n length = array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (value === placeholder || value === PLACEHOLDER) {\n array[index] = PLACEHOLDER;\n result[resIndex++] = index;\n }\n }\n return result;\n }\n\n /**\n * Converts `set` to an array of its values.\n *\n * @private\n * @param {Object} set The set to convert.\n * @returns {Array} Returns the values.\n */\n function setToArray(set) {\n var index = -1,\n result = Array(set.size);\n\n set.forEach(function(value) {\n result[++index] = value;\n });\n return result;\n }\n\n /**\n * Converts `set` to its value-value pairs.\n *\n * @private\n * @param {Object} set The set to convert.\n * @returns {Array} Returns the value-value pairs.\n */\n function setToPairs(set) {\n var index = -1,\n result = Array(set.size);\n\n set.forEach(function(value) {\n result[++index] = [value, value];\n });\n return result;\n }\n\n /**\n * A specialized version of `_.indexOf` which performs strict equality\n * comparisons of values, i.e. `===`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function strictIndexOf(array, value, fromIndex) {\n var index = fromIndex - 1,\n length = array.length;\n\n while (++index < length) {\n if (array[index] === value) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * A specialized version of `_.lastIndexOf` which performs strict equality\n * comparisons of values, i.e. `===`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function strictLastIndexOf(array, value, fromIndex) {\n var index = fromIndex + 1;\n while (index--) {\n if (array[index] === value) {\n return index;\n }\n }\n return index;\n }\n\n /**\n * Gets the number of symbols in `string`.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {number} Returns the string size.\n */\n function stringSize(string) {\n return hasUnicode(string)\n ? unicodeSize(string)\n : asciiSize(string);\n }\n\n /**\n * Converts `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\n function stringToArray(string) {\n return hasUnicode(string)\n ? unicodeToArray(string)\n : asciiToArray(string);\n }\n\n /**\n * Used by `_.trim` and `_.trimEnd` to get the index of the last non-whitespace\n * character of `string`.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {number} Returns the index of the last non-whitespace character.\n */\n function trimmedEndIndex(string) {\n var index = string.length;\n\n while (index-- && reWhitespace.test(string.charAt(index))) {}\n return index;\n }\n\n /**\n * Used by `_.unescape` to convert HTML entities to characters.\n *\n * @private\n * @param {string} chr The matched character to unescape.\n * @returns {string} Returns the unescaped character.\n */\n var unescapeHtmlChar = basePropertyOf(htmlUnescapes);\n\n /**\n * Gets the size of a Unicode `string`.\n *\n * @private\n * @param {string} string The string inspect.\n * @returns {number} Returns the string size.\n */\n function unicodeSize(string) {\n var result = reUnicode.lastIndex = 0;\n while (reUnicode.test(string)) {\n ++result;\n }\n return result;\n }\n\n /**\n * Converts a Unicode `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\n function unicodeToArray(string) {\n return string.match(reUnicode) || [];\n }\n\n /**\n * Splits a Unicode `string` into an array of its words.\n *\n * @private\n * @param {string} The string to inspect.\n * @returns {Array} Returns the words of `string`.\n */\n function unicodeWords(string) {\n return string.match(reUnicodeWord) || [];\n }\n\n /*--------------------------------------------------------------------------*/\n\n /**\n * Create a new pristine `lodash` function using the `context` object.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Util\n * @param {Object} [context=root] The context object.\n * @returns {Function} Returns a new `lodash` function.\n * @example\n *\n * _.mixin({ 'foo': _.constant('foo') });\n *\n * var lodash = _.runInContext();\n * lodash.mixin({ 'bar': lodash.constant('bar') });\n *\n * _.isFunction(_.foo);\n * // => true\n * _.isFunction(_.bar);\n * // => false\n *\n * lodash.isFunction(lodash.foo);\n * // => false\n * lodash.isFunction(lodash.bar);\n * // => true\n *\n * // Create a suped-up `defer` in Node.js.\n * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;\n */\n var runInContext = (function runInContext(context) {\n context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps));\n\n /** Built-in constructor references. */\n var Array = context.Array,\n Date = context.Date,\n Error = context.Error,\n Function = context.Function,\n Math = context.Math,\n Object = context.Object,\n RegExp = context.RegExp,\n String = context.String,\n TypeError = context.TypeError;\n\n /** Used for built-in method references. */\n var arrayProto = Array.prototype,\n funcProto = Function.prototype,\n objectProto = Object.prototype;\n\n /** Used to detect overreaching core-js shims. */\n var coreJsData = context['__core-js_shared__'];\n\n /** Used to resolve the decompiled source of functions. */\n var funcToString = funcProto.toString;\n\n /** Used to check objects for own properties. */\n var hasOwnProperty = objectProto.hasOwnProperty;\n\n /** Used to generate unique IDs. */\n var idCounter = 0;\n\n /** Used to detect methods masquerading as native. */\n var maskSrcKey = (function() {\n var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');\n return uid ? ('Symbol(src)_1.' + uid) : '';\n }());\n\n /**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\n var nativeObjectToString = objectProto.toString;\n\n /** Used to infer the `Object` constructor. */\n var objectCtorString = funcToString.call(Object);\n\n /** Used to restore the original `_` reference in `_.noConflict`. */\n var oldDash = root._;\n\n /** Used to detect if a method is native. */\n var reIsNative = RegExp('^' +\n funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\\\$&')\n .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n );\n\n /** Built-in value references. */\n var Buffer = moduleExports ? context.Buffer : undefined,\n Symbol = context.Symbol,\n Uint8Array = context.Uint8Array,\n allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined,\n getPrototype = overArg(Object.getPrototypeOf, Object),\n objectCreate = Object.create,\n propertyIsEnumerable = objectProto.propertyIsEnumerable,\n splice = arrayProto.splice,\n spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined,\n symIterator = Symbol ? Symbol.iterator : undefined,\n symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n var defineProperty = (function() {\n try {\n var func = getNative(Object, 'defineProperty');\n func({}, '', {});\n return func;\n } catch (e) {}\n }());\n\n /** Mocked built-ins. */\n var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout,\n ctxNow = Date && Date.now !== root.Date.now && Date.now,\n ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout;\n\n /* Built-in method references for those with the same name as other `lodash` methods. */\n var nativeCeil = Math.ceil,\n nativeFloor = Math.floor,\n nativeGetSymbols = Object.getOwnPropertySymbols,\n nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,\n nativeIsFinite = context.isFinite,\n nativeJoin = arrayProto.join,\n nativeKeys = overArg(Object.keys, Object),\n nativeMax = Math.max,\n nativeMin = Math.min,\n nativeNow = Date.now,\n nativeParseInt = context.parseInt,\n nativeRandom = Math.random,\n nativeReverse = arrayProto.reverse;\n\n /* Built-in method references that are verified to be native. */\n var DataView = getNative(context, 'DataView'),\n Map = getNative(context, 'Map'),\n Promise = getNative(context, 'Promise'),\n Set = getNative(context, 'Set'),\n WeakMap = getNative(context, 'WeakMap'),\n nativeCreate = getNative(Object, 'create');\n\n /** Used to store function metadata. */\n var metaMap = WeakMap && new WeakMap;\n\n /** Used to lookup unminified function names. */\n var realNames = {};\n\n /** Used to detect maps, sets, and weakmaps. */\n var dataViewCtorString = toSource(DataView),\n mapCtorString = toSource(Map),\n promiseCtorString = toSource(Promise),\n setCtorString = toSource(Set),\n weakMapCtorString = toSource(WeakMap);\n\n /** Used to convert symbols to primitives and strings. */\n var symbolProto = Symbol ? Symbol.prototype : undefined,\n symbolValueOf = symbolProto ? symbolProto.valueOf : undefined,\n symbolToString = symbolProto ? symbolProto.toString : undefined;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a `lodash` object which wraps `value` to enable implicit method\n * chain sequences. Methods that operate on and return arrays, collections,\n * and functions can be chained together. Methods that retrieve a single value\n * or may return a primitive value will automatically end the chain sequence\n * and return the unwrapped value. Otherwise, the value must be unwrapped\n * with `_#value`.\n *\n * Explicit chain sequences, which must be unwrapped with `_#value`, may be\n * enabled using `_.chain`.\n *\n * The execution of chained methods is lazy, that is, it's deferred until\n * `_#value` is implicitly or explicitly called.\n *\n * Lazy evaluation allows several methods to support shortcut fusion.\n * Shortcut fusion is an optimization to merge iteratee calls; this avoids\n * the creation of intermediate arrays and can greatly reduce the number of\n * iteratee executions. Sections of a chain sequence qualify for shortcut\n * fusion if the section is applied to an array and iteratees accept only\n * one argument. The heuristic for whether a section qualifies for shortcut\n * fusion is subject to change.\n *\n * Chaining is supported in custom builds as long as the `_#value` method is\n * directly or indirectly included in the build.\n *\n * In addition to lodash methods, wrappers have `Array` and `String` methods.\n *\n * The wrapper `Array` methods are:\n * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift`\n *\n * The wrapper `String` methods are:\n * `replace` and `split`\n *\n * The wrapper methods that support shortcut fusion are:\n * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`,\n * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`,\n * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray`\n *\n * The chainable wrapper methods are:\n * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`,\n * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`,\n * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`,\n * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`,\n * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`,\n * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`,\n * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`,\n * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`,\n * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`,\n * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`,\n * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`,\n * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`,\n * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`,\n * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`,\n * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`,\n * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`,\n * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`,\n * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`,\n * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`,\n * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`,\n * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`,\n * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`,\n * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`,\n * `zipObject`, `zipObjectDeep`, and `zipWith`\n *\n * The wrapper methods that are **not** chainable by default are:\n * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`,\n * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`,\n * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`,\n * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`,\n * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`,\n * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`,\n * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`,\n * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`,\n * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`,\n * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`,\n * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,\n * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,\n * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,\n * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,\n * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,\n * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,\n * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,\n * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,\n * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,\n * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,\n * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,\n * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,\n * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,\n * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,\n * `upperFirst`, `value`, and `words`\n *\n * @name _\n * @constructor\n * @category Seq\n * @param {*} value The value to wrap in a `lodash` instance.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * var wrapped = _([1, 2, 3]);\n *\n * // Returns an unwrapped value.\n * wrapped.reduce(_.add);\n * // => 6\n *\n * // Returns a wrapped value.\n * var squares = wrapped.map(square);\n *\n * _.isArray(squares);\n * // => false\n *\n * _.isArray(squares.value());\n * // => true\n */\n function lodash(value) {\n if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {\n if (value instanceof LodashWrapper) {\n return value;\n }\n if (hasOwnProperty.call(value, '__wrapped__')) {\n return wrapperClone(value);\n }\n }\n return new LodashWrapper(value);\n }\n\n /**\n * The base implementation of `_.create` without support for assigning\n * properties to the created object.\n *\n * @private\n * @param {Object} proto The object to inherit from.\n * @returns {Object} Returns the new object.\n */\n var baseCreate = (function() {\n function object() {}\n return function(proto) {\n if (!isObject(proto)) {\n return {};\n }\n if (objectCreate) {\n return objectCreate(proto);\n }\n object.prototype = proto;\n var result = new object;\n object.prototype = undefined;\n return result;\n };\n }());\n\n /**\n * The function whose prototype chain sequence wrappers inherit from.\n *\n * @private\n */\n function baseLodash() {\n // No operation performed.\n }\n\n /**\n * The base constructor for creating `lodash` wrapper objects.\n *\n * @private\n * @param {*} value The value to wrap.\n * @param {boolean} [chainAll] Enable explicit method chain sequences.\n */\n function LodashWrapper(value, chainAll) {\n this.__wrapped__ = value;\n this.__actions__ = [];\n this.__chain__ = !!chainAll;\n this.__index__ = 0;\n this.__values__ = undefined;\n }\n\n /**\n * By default, the template delimiters used by lodash are like those in\n * embedded Ruby (ERB) as well as ES2015 template strings. Change the\n * following template settings to use alternative delimiters.\n *\n * @static\n * @memberOf _\n * @type {Object}\n */\n lodash.templateSettings = {\n\n /**\n * Used to detect `data` property values to be HTML-escaped.\n *\n * @memberOf _.templateSettings\n * @type {RegExp}\n */\n 'escape': reEscape,\n\n /**\n * Used to detect code to be evaluated.\n *\n * @memberOf _.templateSettings\n * @type {RegExp}\n */\n 'evaluate': reEvaluate,\n\n /**\n * Used to detect `data` property values to inject.\n *\n * @memberOf _.templateSettings\n * @type {RegExp}\n */\n 'interpolate': reInterpolate,\n\n /**\n * Used to reference the data object in the template text.\n *\n * @memberOf _.templateSettings\n * @type {string}\n */\n 'variable': '',\n\n /**\n * Used to import variables into the compiled template.\n *\n * @memberOf _.templateSettings\n * @type {Object}\n */\n 'imports': {\n\n /**\n * A reference to the `lodash` function.\n *\n * @memberOf _.templateSettings.imports\n * @type {Function}\n */\n '_': lodash\n }\n };\n\n // Ensure wrappers are instances of `baseLodash`.\n lodash.prototype = baseLodash.prototype;\n lodash.prototype.constructor = lodash;\n\n LodashWrapper.prototype = baseCreate(baseLodash.prototype);\n LodashWrapper.prototype.constructor = LodashWrapper;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.\n *\n * @private\n * @constructor\n * @param {*} value The value to wrap.\n */\n function LazyWrapper(value) {\n this.__wrapped__ = value;\n this.__actions__ = [];\n this.__dir__ = 1;\n this.__filtered__ = false;\n this.__iteratees__ = [];\n this.__takeCount__ = MAX_ARRAY_LENGTH;\n this.__views__ = [];\n }\n\n /**\n * Creates a clone of the lazy wrapper object.\n *\n * @private\n * @name clone\n * @memberOf LazyWrapper\n * @returns {Object} Returns the cloned `LazyWrapper` object.\n */\n function lazyClone() {\n var result = new LazyWrapper(this.__wrapped__);\n result.__actions__ = copyArray(this.__actions__);\n result.__dir__ = this.__dir__;\n result.__filtered__ = this.__filtered__;\n result.__iteratees__ = copyArray(this.__iteratees__);\n result.__takeCount__ = this.__takeCount__;\n result.__views__ = copyArray(this.__views__);\n return result;\n }\n\n /**\n * Reverses the direction of lazy iteration.\n *\n * @private\n * @name reverse\n * @memberOf LazyWrapper\n * @returns {Object} Returns the new reversed `LazyWrapper` object.\n */\n function lazyReverse() {\n if (this.__filtered__) {\n var result = new LazyWrapper(this);\n result.__dir__ = -1;\n result.__filtered__ = true;\n } else {\n result = this.clone();\n result.__dir__ *= -1;\n }\n return result;\n }\n\n /**\n * Extracts the unwrapped value from its lazy wrapper.\n *\n * @private\n * @name value\n * @memberOf LazyWrapper\n * @returns {*} Returns the unwrapped value.\n */\n function lazyValue() {\n var array = this.__wrapped__.value(),\n dir = this.__dir__,\n isArr = isArray(array),\n isRight = dir < 0,\n arrLength = isArr ? array.length : 0,\n view = getView(0, arrLength, this.__views__),\n start = view.start,\n end = view.end,\n length = end - start,\n index = isRight ? end : (start - 1),\n iteratees = this.__iteratees__,\n iterLength = iteratees.length,\n resIndex = 0,\n takeCount = nativeMin(length, this.__takeCount__);\n\n if (!isArr || (!isRight && arrLength == length && takeCount == length)) {\n return baseWrapperValue(array, this.__actions__);\n }\n var result = [];\n\n outer:\n while (length-- && resIndex < takeCount) {\n index += dir;\n\n var iterIndex = -1,\n value = array[index];\n\n while (++iterIndex < iterLength) {\n var data = iteratees[iterIndex],\n iteratee = data.iteratee,\n type = data.type,\n computed = iteratee(value);\n\n if (type == LAZY_MAP_FLAG) {\n value = computed;\n } else if (!computed) {\n if (type == LAZY_FILTER_FLAG) {\n continue outer;\n } else {\n break outer;\n }\n }\n }\n result[resIndex++] = value;\n }\n return result;\n }\n\n // Ensure `LazyWrapper` is an instance of `baseLodash`.\n LazyWrapper.prototype = baseCreate(baseLodash.prototype);\n LazyWrapper.prototype.constructor = LazyWrapper;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a hash object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function Hash(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n }\n\n /**\n * Removes all key-value entries from the hash.\n *\n * @private\n * @name clear\n * @memberOf Hash\n */\n function hashClear() {\n this.__data__ = nativeCreate ? nativeCreate(null) : {};\n this.size = 0;\n }\n\n /**\n * Removes `key` and its value from the hash.\n *\n * @private\n * @name delete\n * @memberOf Hash\n * @param {Object} hash The hash to modify.\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function hashDelete(key) {\n var result = this.has(key) && delete this.__data__[key];\n this.size -= result ? 1 : 0;\n return result;\n }\n\n /**\n * Gets the hash value for `key`.\n *\n * @private\n * @name get\n * @memberOf Hash\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function hashGet(key) {\n var data = this.__data__;\n if (nativeCreate) {\n var result = data[key];\n return result === HASH_UNDEFINED ? undefined : result;\n }\n return hasOwnProperty.call(data, key) ? data[key] : undefined;\n }\n\n /**\n * Checks if a hash value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Hash\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function hashHas(key) {\n var data = this.__data__;\n return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);\n }\n\n /**\n * Sets the hash `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Hash\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the hash instance.\n */\n function hashSet(key, value) {\n var data = this.__data__;\n this.size += this.has(key) ? 0 : 1;\n data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;\n return this;\n }\n\n // Add methods to `Hash`.\n Hash.prototype.clear = hashClear;\n Hash.prototype['delete'] = hashDelete;\n Hash.prototype.get = hashGet;\n Hash.prototype.has = hashHas;\n Hash.prototype.set = hashSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an list cache object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function ListCache(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n }\n\n /**\n * Removes all key-value entries from the list cache.\n *\n * @private\n * @name clear\n * @memberOf ListCache\n */\n function listCacheClear() {\n this.__data__ = [];\n this.size = 0;\n }\n\n /**\n * Removes `key` and its value from the list cache.\n *\n * @private\n * @name delete\n * @memberOf ListCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function listCacheDelete(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n return false;\n }\n var lastIndex = data.length - 1;\n if (index == lastIndex) {\n data.pop();\n } else {\n splice.call(data, index, 1);\n }\n --this.size;\n return true;\n }\n\n /**\n * Gets the list cache value for `key`.\n *\n * @private\n * @name get\n * @memberOf ListCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function listCacheGet(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n return index < 0 ? undefined : data[index][1];\n }\n\n /**\n * Checks if a list cache value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf ListCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function listCacheHas(key) {\n return assocIndexOf(this.__data__, key) > -1;\n }\n\n /**\n * Sets the list cache `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf ListCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the list cache instance.\n */\n function listCacheSet(key, value) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n ++this.size;\n data.push([key, value]);\n } else {\n data[index][1] = value;\n }\n return this;\n }\n\n // Add methods to `ListCache`.\n ListCache.prototype.clear = listCacheClear;\n ListCache.prototype['delete'] = listCacheDelete;\n ListCache.prototype.get = listCacheGet;\n ListCache.prototype.has = listCacheHas;\n ListCache.prototype.set = listCacheSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a map cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function MapCache(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n }\n\n /**\n * Removes all key-value entries from the map.\n *\n * @private\n * @name clear\n * @memberOf MapCache\n */\n function mapCacheClear() {\n this.size = 0;\n this.__data__ = {\n 'hash': new Hash,\n 'map': new (Map || ListCache),\n 'string': new Hash\n };\n }\n\n /**\n * Removes `key` and its value from the map.\n *\n * @private\n * @name delete\n * @memberOf MapCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function mapCacheDelete(key) {\n var result = getMapData(this, key)['delete'](key);\n this.size -= result ? 1 : 0;\n return result;\n }\n\n /**\n * Gets the map value for `key`.\n *\n * @private\n * @name get\n * @memberOf MapCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function mapCacheGet(key) {\n return getMapData(this, key).get(key);\n }\n\n /**\n * Checks if a map value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf MapCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function mapCacheHas(key) {\n return getMapData(this, key).has(key);\n }\n\n /**\n * Sets the map `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf MapCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the map cache instance.\n */\n function mapCacheSet(key, value) {\n var data = getMapData(this, key),\n size = data.size;\n\n data.set(key, value);\n this.size += data.size == size ? 0 : 1;\n return this;\n }\n\n // Add methods to `MapCache`.\n MapCache.prototype.clear = mapCacheClear;\n MapCache.prototype['delete'] = mapCacheDelete;\n MapCache.prototype.get = mapCacheGet;\n MapCache.prototype.has = mapCacheHas;\n MapCache.prototype.set = mapCacheSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n *\n * Creates an array cache object to store unique values.\n *\n * @private\n * @constructor\n * @param {Array} [values] The values to cache.\n */\n function SetCache(values) {\n var index = -1,\n length = values == null ? 0 : values.length;\n\n this.__data__ = new MapCache;\n while (++index < length) {\n this.add(values[index]);\n }\n }\n\n /**\n * Adds `value` to the array cache.\n *\n * @private\n * @name add\n * @memberOf SetCache\n * @alias push\n * @param {*} value The value to cache.\n * @returns {Object} Returns the cache instance.\n */\n function setCacheAdd(value) {\n this.__data__.set(value, HASH_UNDEFINED);\n return this;\n }\n\n /**\n * Checks if `value` is in the array cache.\n *\n * @private\n * @name has\n * @memberOf SetCache\n * @param {*} value The value to search for.\n * @returns {number} Returns `true` if `value` is found, else `false`.\n */\n function setCacheHas(value) {\n return this.__data__.has(value);\n }\n\n // Add methods to `SetCache`.\n SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;\n SetCache.prototype.has = setCacheHas;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a stack cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function Stack(entries) {\n var data = this.__data__ = new ListCache(entries);\n this.size = data.size;\n }\n\n /**\n * Removes all key-value entries from the stack.\n *\n * @private\n * @name clear\n * @memberOf Stack\n */\n function stackClear() {\n this.__data__ = new ListCache;\n this.size = 0;\n }\n\n /**\n * Removes `key` and its value from the stack.\n *\n * @private\n * @name delete\n * @memberOf Stack\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function stackDelete(key) {\n var data = this.__data__,\n result = data['delete'](key);\n\n this.size = data.size;\n return result;\n }\n\n /**\n * Gets the stack value for `key`.\n *\n * @private\n * @name get\n * @memberOf Stack\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function stackGet(key) {\n return this.__data__.get(key);\n }\n\n /**\n * Checks if a stack value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Stack\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function stackHas(key) {\n return this.__data__.has(key);\n }\n\n /**\n * Sets the stack `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Stack\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the stack cache instance.\n */\n function stackSet(key, value) {\n var data = this.__data__;\n if (data instanceof ListCache) {\n var pairs = data.__data__;\n if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {\n pairs.push([key, value]);\n this.size = ++data.size;\n return this;\n }\n data = this.__data__ = new MapCache(pairs);\n }\n data.set(key, value);\n this.size = data.size;\n return this;\n }\n\n // Add methods to `Stack`.\n Stack.prototype.clear = stackClear;\n Stack.prototype['delete'] = stackDelete;\n Stack.prototype.get = stackGet;\n Stack.prototype.has = stackHas;\n Stack.prototype.set = stackSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an array of the enumerable property names of the array-like `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @param {boolean} inherited Specify returning inherited property names.\n * @returns {Array} Returns the array of property names.\n */\n function arrayLikeKeys(value, inherited) {\n var isArr = isArray(value),\n isArg = !isArr && isArguments(value),\n isBuff = !isArr && !isArg && isBuffer(value),\n isType = !isArr && !isArg && !isBuff && isTypedArray(value),\n skipIndexes = isArr || isArg || isBuff || isType,\n result = skipIndexes ? baseTimes(value.length, String) : [],\n length = result.length;\n\n for (var key in value) {\n if ((inherited || hasOwnProperty.call(value, key)) &&\n !(skipIndexes && (\n // Safari 9 has enumerable `arguments.length` in strict mode.\n key == 'length' ||\n // Node.js 0.10 has enumerable non-index properties on buffers.\n (isBuff && (key == 'offset' || key == 'parent')) ||\n // PhantomJS 2 has enumerable non-index properties on typed arrays.\n (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||\n // Skip index properties.\n isIndex(key, length)\n ))) {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * A specialized version of `_.sample` for arrays.\n *\n * @private\n * @param {Array} array The array to sample.\n * @returns {*} Returns the random element.\n */\n function arraySample(array) {\n var length = array.length;\n return length ? array[baseRandom(0, length - 1)] : undefined;\n }\n\n /**\n * A specialized version of `_.sampleSize` for arrays.\n *\n * @private\n * @param {Array} array The array to sample.\n * @param {number} n The number of elements to sample.\n * @returns {Array} Returns the random elements.\n */\n function arraySampleSize(array, n) {\n return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length));\n }\n\n /**\n * A specialized version of `_.shuffle` for arrays.\n *\n * @private\n * @param {Array} array The array to shuffle.\n * @returns {Array} Returns the new shuffled array.\n */\n function arrayShuffle(array) {\n return shuffleSelf(copyArray(array));\n }\n\n /**\n * This function is like `assignValue` except that it doesn't assign\n * `undefined` values.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\n function assignMergeValue(object, key, value) {\n if ((value !== undefined && !eq(object[key], value)) ||\n (value === undefined && !(key in object))) {\n baseAssignValue(object, key, value);\n }\n }\n\n /**\n * Assigns `value` to `key` of `object` if the existing value is not equivalent\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\n function assignValue(object, key, value) {\n var objValue = object[key];\n if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||\n (value === undefined && !(key in object))) {\n baseAssignValue(object, key, value);\n }\n }\n\n /**\n * Gets the index at which the `key` is found in `array` of key-value pairs.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} key The key to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function assocIndexOf(array, key) {\n var length = array.length;\n while (length--) {\n if (eq(array[length][0], key)) {\n return length;\n }\n }\n return -1;\n }\n\n /**\n * Aggregates elements of `collection` on `accumulator` with keys transformed\n * by `iteratee` and values set by `setter`.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} setter The function to set `accumulator` values.\n * @param {Function} iteratee The iteratee to transform keys.\n * @param {Object} accumulator The initial aggregated object.\n * @returns {Function} Returns `accumulator`.\n */\n function baseAggregator(collection, setter, iteratee, accumulator) {\n baseEach(collection, function(value, key, collection) {\n setter(accumulator, value, iteratee(value), collection);\n });\n return accumulator;\n }\n\n /**\n * The base implementation of `_.assign` without support for multiple sources\n * or `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @returns {Object} Returns `object`.\n */\n function baseAssign(object, source) {\n return object && copyObject(source, keys(source), object);\n }\n\n /**\n * The base implementation of `_.assignIn` without support for multiple sources\n * or `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @returns {Object} Returns `object`.\n */\n function baseAssignIn(object, source) {\n return object && copyObject(source, keysIn(source), object);\n }\n\n /**\n * The base implementation of `assignValue` and `assignMergeValue` without\n * value checks.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\n function baseAssignValue(object, key, value) {\n if (key == '__proto__' && defineProperty) {\n defineProperty(object, key, {\n 'configurable': true,\n 'enumerable': true,\n 'value': value,\n 'writable': true\n });\n } else {\n object[key] = value;\n }\n }\n\n /**\n * The base implementation of `_.at` without support for individual paths.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {string[]} paths The property paths to pick.\n * @returns {Array} Returns the picked elements.\n */\n function baseAt(object, paths) {\n var index = -1,\n length = paths.length,\n result = Array(length),\n skip = object == null;\n\n while (++index < length) {\n result[index] = skip ? undefined : get(object, paths[index]);\n }\n return result;\n }\n\n /**\n * The base implementation of `_.clamp` which doesn't coerce arguments.\n *\n * @private\n * @param {number} number The number to clamp.\n * @param {number} [lower] The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the clamped number.\n */\n function baseClamp(number, lower, upper) {\n if (number === number) {\n if (upper !== undefined) {\n number = number <= upper ? number : upper;\n }\n if (lower !== undefined) {\n number = number >= lower ? number : lower;\n }\n }\n return number;\n }\n\n /**\n * The base implementation of `_.clone` and `_.cloneDeep` which tracks\n * traversed objects.\n *\n * @private\n * @param {*} value The value to clone.\n * @param {boolean} bitmask The bitmask flags.\n * 1 - Deep clone\n * 2 - Flatten inherited properties\n * 4 - Clone symbols\n * @param {Function} [customizer] The function to customize cloning.\n * @param {string} [key] The key of `value`.\n * @param {Object} [object] The parent object of `value`.\n * @param {Object} [stack] Tracks traversed objects and their clone counterparts.\n * @returns {*} Returns the cloned value.\n */\n function baseClone(value, bitmask, customizer, key, object, stack) {\n var result,\n isDeep = bitmask & CLONE_DEEP_FLAG,\n isFlat = bitmask & CLONE_FLAT_FLAG,\n isFull = bitmask & CLONE_SYMBOLS_FLAG;\n\n if (customizer) {\n result = object ? customizer(value, key, object, stack) : customizer(value);\n }\n if (result !== undefined) {\n return result;\n }\n if (!isObject(value)) {\n return value;\n }\n var isArr = isArray(value);\n if (isArr) {\n result = initCloneArray(value);\n if (!isDeep) {\n return copyArray(value, result);\n }\n } else {\n var tag = getTag(value),\n isFunc = tag == funcTag || tag == genTag;\n\n if (isBuffer(value)) {\n return cloneBuffer(value, isDeep);\n }\n if (tag == objectTag || tag == argsTag || (isFunc && !object)) {\n result = (isFlat || isFunc) ? {} : initCloneObject(value);\n if (!isDeep) {\n return isFlat\n ? copySymbolsIn(value, baseAssignIn(result, value))\n : copySymbols(value, baseAssign(result, value));\n }\n } else {\n if (!cloneableTags[tag]) {\n return object ? value : {};\n }\n result = initCloneByTag(value, tag, isDeep);\n }\n }\n // Check for circular references and return its corresponding clone.\n stack || (stack = new Stack);\n var stacked = stack.get(value);\n if (stacked) {\n return stacked;\n }\n stack.set(value, result);\n\n if (isSet(value)) {\n value.forEach(function(subValue) {\n result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack));\n });\n } else if (isMap(value)) {\n value.forEach(function(subValue, key) {\n result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack));\n });\n }\n\n var keysFunc = isFull\n ? (isFlat ? getAllKeysIn : getAllKeys)\n : (isFlat ? keysIn : keys);\n\n var props = isArr ? undefined : keysFunc(value);\n arrayEach(props || value, function(subValue, key) {\n if (props) {\n key = subValue;\n subValue = value[key];\n }\n // Recursively populate clone (susceptible to call stack limits).\n assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));\n });\n return result;\n }\n\n /**\n * The base implementation of `_.conforms` which doesn't clone `source`.\n *\n * @private\n * @param {Object} source The object of property predicates to conform to.\n * @returns {Function} Returns the new spec function.\n */\n function baseConforms(source) {\n var props = keys(source);\n return function(object) {\n return baseConformsTo(object, source, props);\n };\n }\n\n /**\n * The base implementation of `_.conformsTo` which accepts `props` to check.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property predicates to conform to.\n * @returns {boolean} Returns `true` if `object` conforms, else `false`.\n */\n function baseConformsTo(object, source, props) {\n var length = props.length;\n if (object == null) {\n return !length;\n }\n object = Object(object);\n while (length--) {\n var key = props[length],\n predicate = source[key],\n value = object[key];\n\n if ((value === undefined && !(key in object)) || !predicate(value)) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * The base implementation of `_.delay` and `_.defer` which accepts `args`\n * to provide to `func`.\n *\n * @private\n * @param {Function} func The function to delay.\n * @param {number} wait The number of milliseconds to delay invocation.\n * @param {Array} args The arguments to provide to `func`.\n * @returns {number|Object} Returns the timer id or timeout object.\n */\n function baseDelay(func, wait, args) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n return setTimeout(function() { func.apply(undefined, args); }, wait);\n }\n\n /**\n * The base implementation of methods like `_.difference` without support\n * for excluding multiple arrays or iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Array} values The values to exclude.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n */\n function baseDifference(array, values, iteratee, comparator) {\n var index = -1,\n includes = arrayIncludes,\n isCommon = true,\n length = array.length,\n result = [],\n valuesLength = values.length;\n\n if (!length) {\n return result;\n }\n if (iteratee) {\n values = arrayMap(values, baseUnary(iteratee));\n }\n if (comparator) {\n includes = arrayIncludesWith;\n isCommon = false;\n }\n else if (values.length >= LARGE_ARRAY_SIZE) {\n includes = cacheHas;\n isCommon = false;\n values = new SetCache(values);\n }\n outer:\n while (++index < length) {\n var value = array[index],\n computed = iteratee == null ? value : iteratee(value);\n\n value = (comparator || value !== 0) ? value : 0;\n if (isCommon && computed === computed) {\n var valuesIndex = valuesLength;\n while (valuesIndex--) {\n if (values[valuesIndex] === computed) {\n continue outer;\n }\n }\n result.push(value);\n }\n else if (!includes(values, computed, comparator)) {\n result.push(value);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.forEach` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n */\n var baseEach = createBaseEach(baseForOwn);\n\n /**\n * The base implementation of `_.forEachRight` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n */\n var baseEachRight = createBaseEach(baseForOwnRight, true);\n\n /**\n * The base implementation of `_.every` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if all elements pass the predicate check,\n * else `false`\n */\n function baseEvery(collection, predicate) {\n var result = true;\n baseEach(collection, function(value, index, collection) {\n result = !!predicate(value, index, collection);\n return result;\n });\n return result;\n }\n\n /**\n * The base implementation of methods like `_.max` and `_.min` which accepts a\n * `comparator` to determine the extremum value.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The iteratee invoked per iteration.\n * @param {Function} comparator The comparator used to compare values.\n * @returns {*} Returns the extremum value.\n */\n function baseExtremum(array, iteratee, comparator) {\n var index = -1,\n length = array.length;\n\n while (++index < length) {\n var value = array[index],\n current = iteratee(value);\n\n if (current != null && (computed === undefined\n ? (current === current && !isSymbol(current))\n : comparator(current, computed)\n )) {\n var computed = current,\n result = value;\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.fill` without an iteratee call guard.\n *\n * @private\n * @param {Array} array The array to fill.\n * @param {*} value The value to fill `array` with.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns `array`.\n */\n function baseFill(array, value, start, end) {\n var length = array.length;\n\n start = toInteger(start);\n if (start < 0) {\n start = -start > length ? 0 : (length + start);\n }\n end = (end === undefined || end > length) ? length : toInteger(end);\n if (end < 0) {\n end += length;\n }\n end = start > end ? 0 : toLength(end);\n while (start < end) {\n array[start++] = value;\n }\n return array;\n }\n\n /**\n * The base implementation of `_.filter` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n */\n function baseFilter(collection, predicate) {\n var result = [];\n baseEach(collection, function(value, index, collection) {\n if (predicate(value, index, collection)) {\n result.push(value);\n }\n });\n return result;\n }\n\n /**\n * The base implementation of `_.flatten` with support for restricting flattening.\n *\n * @private\n * @param {Array} array The array to flatten.\n * @param {number} depth The maximum recursion depth.\n * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.\n * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.\n * @param {Array} [result=[]] The initial result value.\n * @returns {Array} Returns the new flattened array.\n */\n function baseFlatten(array, depth, predicate, isStrict, result) {\n var index = -1,\n length = array.length;\n\n predicate || (predicate = isFlattenable);\n result || (result = []);\n\n while (++index < length) {\n var value = array[index];\n if (depth > 0 && predicate(value)) {\n if (depth > 1) {\n // Recursively flatten arrays (susceptible to call stack limits).\n baseFlatten(value, depth - 1, predicate, isStrict, result);\n } else {\n arrayPush(result, value);\n }\n } else if (!isStrict) {\n result[result.length] = value;\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `baseForOwn` which iterates over `object`\n * properties returned by `keysFunc` and invokes `iteratee` for each property.\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\n var baseFor = createBaseFor();\n\n /**\n * This function is like `baseFor` except that it iterates over properties\n * in the opposite order.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\n var baseForRight = createBaseFor(true);\n\n /**\n * The base implementation of `_.forOwn` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Object} Returns `object`.\n */\n function baseForOwn(object, iteratee) {\n return object && baseFor(object, iteratee, keys);\n }\n\n /**\n * The base implementation of `_.forOwnRight` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Object} Returns `object`.\n */\n function baseForOwnRight(object, iteratee) {\n return object && baseForRight(object, iteratee, keys);\n }\n\n /**\n * The base implementation of `_.functions` which creates an array of\n * `object` function property names filtered from `props`.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Array} props The property names to filter.\n * @returns {Array} Returns the function names.\n */\n function baseFunctions(object, props) {\n return arrayFilter(props, function(key) {\n return isFunction(object[key]);\n });\n }\n\n /**\n * The base implementation of `_.get` without support for default values.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @returns {*} Returns the resolved value.\n */\n function baseGet(object, path) {\n path = castPath(path, object);\n\n var index = 0,\n length = path.length;\n\n while (object != null && index < length) {\n object = object[toKey(path[index++])];\n }\n return (index && index == length) ? object : undefined;\n }\n\n /**\n * The base implementation of `getAllKeys` and `getAllKeysIn` which uses\n * `keysFunc` and `symbolsFunc` to get the enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @param {Function} symbolsFunc The function to get the symbols of `object`.\n * @returns {Array} Returns the array of property names and symbols.\n */\n function baseGetAllKeys(object, keysFunc, symbolsFunc) {\n var result = keysFunc(object);\n return isArray(object) ? result : arrayPush(result, symbolsFunc(object));\n }\n\n /**\n * The base implementation of `getTag` without fallbacks for buggy environments.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\n function baseGetTag(value) {\n if (value == null) {\n return value === undefined ? undefinedTag : nullTag;\n }\n return (symToStringTag && symToStringTag in Object(value))\n ? getRawTag(value)\n : objectToString(value);\n }\n\n /**\n * The base implementation of `_.gt` which doesn't coerce arguments.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than `other`,\n * else `false`.\n */\n function baseGt(value, other) {\n return value > other;\n }\n\n /**\n * The base implementation of `_.has` without support for deep paths.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {Array|string} key The key to check.\n * @returns {boolean} Returns `true` if `key` exists, else `false`.\n */\n function baseHas(object, key) {\n return object != null && hasOwnProperty.call(object, key);\n }\n\n /**\n * The base implementation of `_.hasIn` without support for deep paths.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {Array|string} key The key to check.\n * @returns {boolean} Returns `true` if `key` exists, else `false`.\n */\n function baseHasIn(object, key) {\n return object != null && key in Object(object);\n }\n\n /**\n * The base implementation of `_.inRange` which doesn't coerce arguments.\n *\n * @private\n * @param {number} number The number to check.\n * @param {number} start The start of the range.\n * @param {number} end The end of the range.\n * @returns {boolean} Returns `true` if `number` is in the range, else `false`.\n */\n function baseInRange(number, start, end) {\n return number >= nativeMin(start, end) && number < nativeMax(start, end);\n }\n\n /**\n * The base implementation of methods like `_.intersection`, without support\n * for iteratee shorthands, that accepts an array of arrays to inspect.\n *\n * @private\n * @param {Array} arrays The arrays to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of shared values.\n */\n function baseIntersection(arrays, iteratee, comparator) {\n var includes = comparator ? arrayIncludesWith : arrayIncludes,\n length = arrays[0].length,\n othLength = arrays.length,\n othIndex = othLength,\n caches = Array(othLength),\n maxLength = Infinity,\n result = [];\n\n while (othIndex--) {\n var array = arrays[othIndex];\n if (othIndex && iteratee) {\n array = arrayMap(array, baseUnary(iteratee));\n }\n maxLength = nativeMin(array.length, maxLength);\n caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120))\n ? new SetCache(othIndex && array)\n : undefined;\n }\n array = arrays[0];\n\n var index = -1,\n seen = caches[0];\n\n outer:\n while (++index < length && result.length < maxLength) {\n var value = array[index],\n computed = iteratee ? iteratee(value) : value;\n\n value = (comparator || value !== 0) ? value : 0;\n if (!(seen\n ? cacheHas(seen, computed)\n : includes(result, computed, comparator)\n )) {\n othIndex = othLength;\n while (--othIndex) {\n var cache = caches[othIndex];\n if (!(cache\n ? cacheHas(cache, computed)\n : includes(arrays[othIndex], computed, comparator))\n ) {\n continue outer;\n }\n }\n if (seen) {\n seen.push(computed);\n }\n result.push(value);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.invert` and `_.invertBy` which inverts\n * `object` with values transformed by `iteratee` and set by `setter`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} setter The function to set `accumulator` values.\n * @param {Function} iteratee The iteratee to transform values.\n * @param {Object} accumulator The initial inverted object.\n * @returns {Function} Returns `accumulator`.\n */\n function baseInverter(object, setter, iteratee, accumulator) {\n baseForOwn(object, function(value, key, object) {\n setter(accumulator, iteratee(value), key, object);\n });\n return accumulator;\n }\n\n /**\n * The base implementation of `_.invoke` without support for individual\n * method arguments.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the method to invoke.\n * @param {Array} args The arguments to invoke the method with.\n * @returns {*} Returns the result of the invoked method.\n */\n function baseInvoke(object, path, args) {\n path = castPath(path, object);\n object = parent(object, path);\n var func = object == null ? object : object[toKey(last(path))];\n return func == null ? undefined : apply(func, object, args);\n }\n\n /**\n * The base implementation of `_.isArguments`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n */\n function baseIsArguments(value) {\n return isObjectLike(value) && baseGetTag(value) == argsTag;\n }\n\n /**\n * The base implementation of `_.isArrayBuffer` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.\n */\n function baseIsArrayBuffer(value) {\n return isObjectLike(value) && baseGetTag(value) == arrayBufferTag;\n }\n\n /**\n * The base implementation of `_.isDate` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a date object, else `false`.\n */\n function baseIsDate(value) {\n return isObjectLike(value) && baseGetTag(value) == dateTag;\n }\n\n /**\n * The base implementation of `_.isEqual` which supports partial comparisons\n * and tracks traversed objects.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {boolean} bitmask The bitmask flags.\n * 1 - Unordered comparison\n * 2 - Partial comparison\n * @param {Function} [customizer] The function to customize comparisons.\n * @param {Object} [stack] Tracks traversed `value` and `other` objects.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n */\n function baseIsEqual(value, other, bitmask, customizer, stack) {\n if (value === other) {\n return true;\n }\n if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {\n return value !== value && other !== other;\n }\n return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);\n }\n\n /**\n * A specialized version of `baseIsEqual` for arrays and objects which performs\n * deep comparisons and tracks traversed objects enabling objects with circular\n * references to be compared.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} [stack] Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\n function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {\n var objIsArr = isArray(object),\n othIsArr = isArray(other),\n objTag = objIsArr ? arrayTag : getTag(object),\n othTag = othIsArr ? arrayTag : getTag(other);\n\n objTag = objTag == argsTag ? objectTag : objTag;\n othTag = othTag == argsTag ? objectTag : othTag;\n\n var objIsObj = objTag == objectTag,\n othIsObj = othTag == objectTag,\n isSameTag = objTag == othTag;\n\n if (isSameTag && isBuffer(object)) {\n if (!isBuffer(other)) {\n return false;\n }\n objIsArr = true;\n objIsObj = false;\n }\n if (isSameTag && !objIsObj) {\n stack || (stack = new Stack);\n return (objIsArr || isTypedArray(object))\n ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)\n : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);\n }\n if (!(bitmask & COMPARE_PARTIAL_FLAG)) {\n var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),\n othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');\n\n if (objIsWrapped || othIsWrapped) {\n var objUnwrapped = objIsWrapped ? object.value() : object,\n othUnwrapped = othIsWrapped ? other.value() : other;\n\n stack || (stack = new Stack);\n return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);\n }\n }\n if (!isSameTag) {\n return false;\n }\n stack || (stack = new Stack);\n return equalObjects(object, other, bitmask, customizer, equalFunc, stack);\n }\n\n /**\n * The base implementation of `_.isMap` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n */\n function baseIsMap(value) {\n return isObjectLike(value) && getTag(value) == mapTag;\n }\n\n /**\n * The base implementation of `_.isMatch` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @param {Array} matchData The property names, values, and compare flags to match.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n */\n function baseIsMatch(object, source, matchData, customizer) {\n var index = matchData.length,\n length = index,\n noCustomizer = !customizer;\n\n if (object == null) {\n return !length;\n }\n object = Object(object);\n while (index--) {\n var data = matchData[index];\n if ((noCustomizer && data[2])\n ? data[1] !== object[data[0]]\n : !(data[0] in object)\n ) {\n return false;\n }\n }\n while (++index < length) {\n data = matchData[index];\n var key = data[0],\n objValue = object[key],\n srcValue = data[1];\n\n if (noCustomizer && data[2]) {\n if (objValue === undefined && !(key in object)) {\n return false;\n }\n } else {\n var stack = new Stack;\n if (customizer) {\n var result = customizer(objValue, srcValue, key, object, source, stack);\n }\n if (!(result === undefined\n ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack)\n : result\n )) {\n return false;\n }\n }\n }\n return true;\n }\n\n /**\n * The base implementation of `_.isNative` without bad shim checks.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n */\n function baseIsNative(value) {\n if (!isObject(value) || isMasked(value)) {\n return false;\n }\n var pattern = isFunction(value) ? reIsNative : reIsHostCtor;\n return pattern.test(toSource(value));\n }\n\n /**\n * The base implementation of `_.isRegExp` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.\n */\n function baseIsRegExp(value) {\n return isObjectLike(value) && baseGetTag(value) == regexpTag;\n }\n\n /**\n * The base implementation of `_.isSet` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n */\n function baseIsSet(value) {\n return isObjectLike(value) && getTag(value) == setTag;\n }\n\n /**\n * The base implementation of `_.isTypedArray` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n */\n function baseIsTypedArray(value) {\n return isObjectLike(value) &&\n isLength(value.length) && !!typedArrayTags[baseGetTag(value)];\n }\n\n /**\n * The base implementation of `_.iteratee`.\n *\n * @private\n * @param {*} [value=_.identity] The value to convert to an iteratee.\n * @returns {Function} Returns the iteratee.\n */\n function baseIteratee(value) {\n // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.\n // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.\n if (typeof value == 'function') {\n return value;\n }\n if (value == null) {\n return identity;\n }\n if (typeof value == 'object') {\n return isArray(value)\n ? baseMatchesProperty(value[0], value[1])\n : baseMatches(value);\n }\n return property(value);\n }\n\n /**\n * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\n function baseKeys(object) {\n if (!isPrototype(object)) {\n return nativeKeys(object);\n }\n var result = [];\n for (var key in Object(object)) {\n if (hasOwnProperty.call(object, key) && key != 'constructor') {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\n function baseKeysIn(object) {\n if (!isObject(object)) {\n return nativeKeysIn(object);\n }\n var isProto = isPrototype(object),\n result = [];\n\n for (var key in object) {\n if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.lt` which doesn't coerce arguments.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than `other`,\n * else `false`.\n */\n function baseLt(value, other) {\n return value < other;\n }\n\n /**\n * The base implementation of `_.map` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n */\n function baseMap(collection, iteratee) {\n var index = -1,\n result = isArrayLike(collection) ? Array(collection.length) : [];\n\n baseEach(collection, function(value, key, collection) {\n result[++index] = iteratee(value, key, collection);\n });\n return result;\n }\n\n /**\n * The base implementation of `_.matches` which doesn't clone `source`.\n *\n * @private\n * @param {Object} source The object of property values to match.\n * @returns {Function} Returns the new spec function.\n */\n function baseMatches(source) {\n var matchData = getMatchData(source);\n if (matchData.length == 1 && matchData[0][2]) {\n return matchesStrictComparable(matchData[0][0], matchData[0][1]);\n }\n return function(object) {\n return object === source || baseIsMatch(object, source, matchData);\n };\n }\n\n /**\n * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.\n *\n * @private\n * @param {string} path The path of the property to get.\n * @param {*} srcValue The value to match.\n * @returns {Function} Returns the new spec function.\n */\n function baseMatchesProperty(path, srcValue) {\n if (isKey(path) && isStrictComparable(srcValue)) {\n return matchesStrictComparable(toKey(path), srcValue);\n }\n return function(object) {\n var objValue = get(object, path);\n return (objValue === undefined && objValue === srcValue)\n ? hasIn(object, path)\n : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG);\n };\n }\n\n /**\n * The base implementation of `_.merge` without support for multiple sources.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {number} srcIndex The index of `source`.\n * @param {Function} [customizer] The function to customize merged values.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n */\n function baseMerge(object, source, srcIndex, customizer, stack) {\n if (object === source) {\n return;\n }\n baseFor(source, function(srcValue, key) {\n stack || (stack = new Stack);\n if (isObject(srcValue)) {\n baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);\n }\n else {\n var newValue = customizer\n ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack)\n : undefined;\n\n if (newValue === undefined) {\n newValue = srcValue;\n }\n assignMergeValue(object, key, newValue);\n }\n }, keysIn);\n }\n\n /**\n * A specialized version of `baseMerge` for arrays and objects which performs\n * deep merges and tracks traversed objects enabling objects with circular\n * references to be merged.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {string} key The key of the value to merge.\n * @param {number} srcIndex The index of `source`.\n * @param {Function} mergeFunc The function to merge values.\n * @param {Function} [customizer] The function to customize assigned values.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n */\n function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {\n var objValue = safeGet(object, key),\n srcValue = safeGet(source, key),\n stacked = stack.get(srcValue);\n\n if (stacked) {\n assignMergeValue(object, key, stacked);\n return;\n }\n var newValue = customizer\n ? customizer(objValue, srcValue, (key + ''), object, source, stack)\n : undefined;\n\n var isCommon = newValue === undefined;\n\n if (isCommon) {\n var isArr = isArray(srcValue),\n isBuff = !isArr && isBuffer(srcValue),\n isTyped = !isArr && !isBuff && isTypedArray(srcValue);\n\n newValue = srcValue;\n if (isArr || isBuff || isTyped) {\n if (isArray(objValue)) {\n newValue = objValue;\n }\n else if (isArrayLikeObject(objValue)) {\n newValue = copyArray(objValue);\n }\n else if (isBuff) {\n isCommon = false;\n newValue = cloneBuffer(srcValue, true);\n }\n else if (isTyped) {\n isCommon = false;\n newValue = cloneTypedArray(srcValue, true);\n }\n else {\n newValue = [];\n }\n }\n else if (isPlainObject(srcValue) || isArguments(srcValue)) {\n newValue = objValue;\n if (isArguments(objValue)) {\n newValue = toPlainObject(objValue);\n }\n else if (!isObject(objValue) || isFunction(objValue)) {\n newValue = initCloneObject(srcValue);\n }\n }\n else {\n isCommon = false;\n }\n }\n if (isCommon) {\n // Recursively merge objects and arrays (susceptible to call stack limits).\n stack.set(srcValue, newValue);\n mergeFunc(newValue, srcValue, srcIndex, customizer, stack);\n stack['delete'](srcValue);\n }\n assignMergeValue(object, key, newValue);\n }\n\n /**\n * The base implementation of `_.nth` which doesn't coerce arguments.\n *\n * @private\n * @param {Array} array The array to query.\n * @param {number} n The index of the element to return.\n * @returns {*} Returns the nth element of `array`.\n */\n function baseNth(array, n) {\n var length = array.length;\n if (!length) {\n return;\n }\n n += n < 0 ? length : 0;\n return isIndex(n, length) ? array[n] : undefined;\n }\n\n /**\n * The base implementation of `_.orderBy` without param guards.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.\n * @param {string[]} orders The sort orders of `iteratees`.\n * @returns {Array} Returns the new sorted array.\n */\n function baseOrderBy(collection, iteratees, orders) {\n if (iteratees.length) {\n iteratees = arrayMap(iteratees, function(iteratee) {\n if (isArray(iteratee)) {\n return function(value) {\n return baseGet(value, iteratee.length === 1 ? iteratee[0] : iteratee);\n }\n }\n return iteratee;\n });\n } else {\n iteratees = [identity];\n }\n\n var index = -1;\n iteratees = arrayMap(iteratees, baseUnary(getIteratee()));\n\n var result = baseMap(collection, function(value, key, collection) {\n var criteria = arrayMap(iteratees, function(iteratee) {\n return iteratee(value);\n });\n return { 'criteria': criteria, 'index': ++index, 'value': value };\n });\n\n return baseSortBy(result, function(object, other) {\n return compareMultiple(object, other, orders);\n });\n }\n\n /**\n * The base implementation of `_.pick` without support for individual\n * property identifiers.\n *\n * @private\n * @param {Object} object The source object.\n * @param {string[]} paths The property paths to pick.\n * @returns {Object} Returns the new object.\n */\n function basePick(object, paths) {\n return basePickBy(object, paths, function(value, path) {\n return hasIn(object, path);\n });\n }\n\n /**\n * The base implementation of `_.pickBy` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The source object.\n * @param {string[]} paths The property paths to pick.\n * @param {Function} predicate The function invoked per property.\n * @returns {Object} Returns the new object.\n */\n function basePickBy(object, paths, predicate) {\n var index = -1,\n length = paths.length,\n result = {};\n\n while (++index < length) {\n var path = paths[index],\n value = baseGet(object, path);\n\n if (predicate(value, path)) {\n baseSet(result, castPath(path, object), value);\n }\n }\n return result;\n }\n\n /**\n * A specialized version of `baseProperty` which supports deep paths.\n *\n * @private\n * @param {Array|string} path The path of the property to get.\n * @returns {Function} Returns the new accessor function.\n */\n function basePropertyDeep(path) {\n return function(object) {\n return baseGet(object, path);\n };\n }\n\n /**\n * The base implementation of `_.pullAllBy` without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns `array`.\n */\n function basePullAll(array, values, iteratee, comparator) {\n var indexOf = comparator ? baseIndexOfWith : baseIndexOf,\n index = -1,\n length = values.length,\n seen = array;\n\n if (array === values) {\n values = copyArray(values);\n }\n if (iteratee) {\n seen = arrayMap(array, baseUnary(iteratee));\n }\n while (++index < length) {\n var fromIndex = 0,\n value = values[index],\n computed = iteratee ? iteratee(value) : value;\n\n while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) {\n if (seen !== array) {\n splice.call(seen, fromIndex, 1);\n }\n splice.call(array, fromIndex, 1);\n }\n }\n return array;\n }\n\n /**\n * The base implementation of `_.pullAt` without support for individual\n * indexes or capturing the removed elements.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {number[]} indexes The indexes of elements to remove.\n * @returns {Array} Returns `array`.\n */\n function basePullAt(array, indexes) {\n var length = array ? indexes.length : 0,\n lastIndex = length - 1;\n\n while (length--) {\n var index = indexes[length];\n if (length == lastIndex || index !== previous) {\n var previous = index;\n if (isIndex(index)) {\n splice.call(array, index, 1);\n } else {\n baseUnset(array, index);\n }\n }\n }\n return array;\n }\n\n /**\n * The base implementation of `_.random` without support for returning\n * floating-point numbers.\n *\n * @private\n * @param {number} lower The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the random number.\n */\n function baseRandom(lower, upper) {\n return lower + nativeFloor(nativeRandom() * (upper - lower + 1));\n }\n\n /**\n * The base implementation of `_.range` and `_.rangeRight` which doesn't\n * coerce arguments.\n *\n * @private\n * @param {number} start The start of the range.\n * @param {number} end The end of the range.\n * @param {number} step The value to increment or decrement by.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Array} Returns the range of numbers.\n */\n function baseRange(start, end, step, fromRight) {\n var index = -1,\n length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),\n result = Array(length);\n\n while (length--) {\n result[fromRight ? length : ++index] = start;\n start += step;\n }\n return result;\n }\n\n /**\n * The base implementation of `_.repeat` which doesn't coerce arguments.\n *\n * @private\n * @param {string} string The string to repeat.\n * @param {number} n The number of times to repeat the string.\n * @returns {string} Returns the repeated string.\n */\n function baseRepeat(string, n) {\n var result = '';\n if (!string || n < 1 || n > MAX_SAFE_INTEGER) {\n return result;\n }\n // Leverage the exponentiation by squaring algorithm for a faster repeat.\n // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.\n do {\n if (n % 2) {\n result += string;\n }\n n = nativeFloor(n / 2);\n if (n) {\n string += string;\n }\n } while (n);\n\n return result;\n }\n\n /**\n * The base implementation of `_.rest` which doesn't validate or coerce arguments.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n */\n function baseRest(func, start) {\n return setToString(overRest(func, start, identity), func + '');\n }\n\n /**\n * The base implementation of `_.sample`.\n *\n * @private\n * @param {Array|Object} collection The collection to sample.\n * @returns {*} Returns the random element.\n */\n function baseSample(collection) {\n return arraySample(values(collection));\n }\n\n /**\n * The base implementation of `_.sampleSize` without param guards.\n *\n * @private\n * @param {Array|Object} collection The collection to sample.\n * @param {number} n The number of elements to sample.\n * @returns {Array} Returns the random elements.\n */\n function baseSampleSize(collection, n) {\n var array = values(collection);\n return shuffleSelf(array, baseClamp(n, 0, array.length));\n }\n\n /**\n * The base implementation of `_.set`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @param {Function} [customizer] The function to customize path creation.\n * @returns {Object} Returns `object`.\n */\n function baseSet(object, path, value, customizer) {\n if (!isObject(object)) {\n return object;\n }\n path = castPath(path, object);\n\n var index = -1,\n length = path.length,\n lastIndex = length - 1,\n nested = object;\n\n while (nested != null && ++index < length) {\n var key = toKey(path[index]),\n newValue = value;\n\n if (key === '__proto__' || key === 'constructor' || key === 'prototype') {\n return object;\n }\n\n if (index != lastIndex) {\n var objValue = nested[key];\n newValue = customizer ? customizer(objValue, key, nested) : undefined;\n if (newValue === undefined) {\n newValue = isObject(objValue)\n ? objValue\n : (isIndex(path[index + 1]) ? [] : {});\n }\n }\n assignValue(nested, key, newValue);\n nested = nested[key];\n }\n return object;\n }\n\n /**\n * The base implementation of `setData` without support for hot loop shorting.\n *\n * @private\n * @param {Function} func The function to associate metadata with.\n * @param {*} data The metadata.\n * @returns {Function} Returns `func`.\n */\n var baseSetData = !metaMap ? identity : function(func, data) {\n metaMap.set(func, data);\n return func;\n };\n\n /**\n * The base implementation of `setToString` without support for hot loop shorting.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\n var baseSetToString = !defineProperty ? identity : function(func, string) {\n return defineProperty(func, 'toString', {\n 'configurable': true,\n 'enumerable': false,\n 'value': constant(string),\n 'writable': true\n });\n };\n\n /**\n * The base implementation of `_.shuffle`.\n *\n * @private\n * @param {Array|Object} collection The collection to shuffle.\n * @returns {Array} Returns the new shuffled array.\n */\n function baseShuffle(collection) {\n return shuffleSelf(values(collection));\n }\n\n /**\n * The base implementation of `_.slice` without an iteratee call guard.\n *\n * @private\n * @param {Array} array The array to slice.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the slice of `array`.\n */\n function baseSlice(array, start, end) {\n var index = -1,\n length = array.length;\n\n if (start < 0) {\n start = -start > length ? 0 : (length + start);\n }\n end = end > length ? length : end;\n if (end < 0) {\n end += length;\n }\n length = start > end ? 0 : ((end - start) >>> 0);\n start >>>= 0;\n\n var result = Array(length);\n while (++index < length) {\n result[index] = array[index + start];\n }\n return result;\n }\n\n /**\n * The base implementation of `_.some` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n */\n function baseSome(collection, predicate) {\n var result;\n\n baseEach(collection, function(value, index, collection) {\n result = predicate(value, index, collection);\n return !result;\n });\n return !!result;\n }\n\n /**\n * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which\n * performs a binary search of `array` to determine the index at which `value`\n * should be inserted into `array` in order to maintain its sort order.\n *\n * @private\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {boolean} [retHighest] Specify returning the highest qualified index.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n */\n function baseSortedIndex(array, value, retHighest) {\n var low = 0,\n high = array == null ? low : array.length;\n\n if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {\n while (low < high) {\n var mid = (low + high) >>> 1,\n computed = array[mid];\n\n if (computed !== null && !isSymbol(computed) &&\n (retHighest ? (computed <= value) : (computed < value))) {\n low = mid + 1;\n } else {\n high = mid;\n }\n }\n return high;\n }\n return baseSortedIndexBy(array, value, identity, retHighest);\n }\n\n /**\n * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy`\n * which invokes `iteratee` for `value` and each element of `array` to compute\n * their sort ranking. The iteratee is invoked with one argument; (value).\n *\n * @private\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {Function} iteratee The iteratee invoked per element.\n * @param {boolean} [retHighest] Specify returning the highest qualified index.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n */\n function baseSortedIndexBy(array, value, iteratee, retHighest) {\n var low = 0,\n high = array == null ? 0 : array.length;\n if (high === 0) {\n return 0;\n }\n\n value = iteratee(value);\n var valIsNaN = value !== value,\n valIsNull = value === null,\n valIsSymbol = isSymbol(value),\n valIsUndefined = value === undefined;\n\n while (low < high) {\n var mid = nativeFloor((low + high) / 2),\n computed = iteratee(array[mid]),\n othIsDefined = computed !== undefined,\n othIsNull = computed === null,\n othIsReflexive = computed === computed,\n othIsSymbol = isSymbol(computed);\n\n if (valIsNaN) {\n var setLow = retHighest || othIsReflexive;\n } else if (valIsUndefined) {\n setLow = othIsReflexive && (retHighest || othIsDefined);\n } else if (valIsNull) {\n setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull);\n } else if (valIsSymbol) {\n setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol);\n } else if (othIsNull || othIsSymbol) {\n setLow = false;\n } else {\n setLow = retHighest ? (computed <= value) : (computed < value);\n }\n if (setLow) {\n low = mid + 1;\n } else {\n high = mid;\n }\n }\n return nativeMin(high, MAX_ARRAY_INDEX);\n }\n\n /**\n * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without\n * support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n */\n function baseSortedUniq(array, iteratee) {\n var index = -1,\n length = array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index],\n computed = iteratee ? iteratee(value) : value;\n\n if (!index || !eq(computed, seen)) {\n var seen = computed;\n result[resIndex++] = value === 0 ? 0 : value;\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.toNumber` which doesn't ensure correct\n * conversions of binary, hexadecimal, or octal string values.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n */\n function baseToNumber(value) {\n if (typeof value == 'number') {\n return value;\n }\n if (isSymbol(value)) {\n return NAN;\n }\n return +value;\n }\n\n /**\n * The base implementation of `_.toString` which doesn't convert nullish\n * values to empty strings.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {string} Returns the string.\n */\n function baseToString(value) {\n // Exit early for strings to avoid a performance hit in some environments.\n if (typeof value == 'string') {\n return value;\n }\n if (isArray(value)) {\n // Recursively convert values (susceptible to call stack limits).\n return arrayMap(value, baseToString) + '';\n }\n if (isSymbol(value)) {\n return symbolToString ? symbolToString.call(value) : '';\n }\n var result = (value + '');\n return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n }\n\n /**\n * The base implementation of `_.uniqBy` without support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n */\n function baseUniq(array, iteratee, comparator) {\n var index = -1,\n includes = arrayIncludes,\n length = array.length,\n isCommon = true,\n result = [],\n seen = result;\n\n if (comparator) {\n isCommon = false;\n includes = arrayIncludesWith;\n }\n else if (length >= LARGE_ARRAY_SIZE) {\n var set = iteratee ? null : createSet(array);\n if (set) {\n return setToArray(set);\n }\n isCommon = false;\n includes = cacheHas;\n seen = new SetCache;\n }\n else {\n seen = iteratee ? [] : result;\n }\n outer:\n while (++index < length) {\n var value = array[index],\n computed = iteratee ? iteratee(value) : value;\n\n value = (comparator || value !== 0) ? value : 0;\n if (isCommon && computed === computed) {\n var seenIndex = seen.length;\n while (seenIndex--) {\n if (seen[seenIndex] === computed) {\n continue outer;\n }\n }\n if (iteratee) {\n seen.push(computed);\n }\n result.push(value);\n }\n else if (!includes(seen, computed, comparator)) {\n if (seen !== result) {\n seen.push(computed);\n }\n result.push(value);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.unset`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The property path to unset.\n * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n */\n function baseUnset(object, path) {\n path = castPath(path, object);\n object = parent(object, path);\n return object == null || delete object[toKey(last(path))];\n }\n\n /**\n * The base implementation of `_.update`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to update.\n * @param {Function} updater The function to produce the updated value.\n * @param {Function} [customizer] The function to customize path creation.\n * @returns {Object} Returns `object`.\n */\n function baseUpdate(object, path, updater, customizer) {\n return baseSet(object, path, updater(baseGet(object, path)), customizer);\n }\n\n /**\n * The base implementation of methods like `_.dropWhile` and `_.takeWhile`\n * without support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to query.\n * @param {Function} predicate The function invoked per iteration.\n * @param {boolean} [isDrop] Specify dropping elements instead of taking them.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Array} Returns the slice of `array`.\n */\n function baseWhile(array, predicate, isDrop, fromRight) {\n var length = array.length,\n index = fromRight ? length : -1;\n\n while ((fromRight ? index-- : ++index < length) &&\n predicate(array[index], index, array)) {}\n\n return isDrop\n ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length))\n : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index));\n }\n\n /**\n * The base implementation of `wrapperValue` which returns the result of\n * performing a sequence of actions on the unwrapped `value`, where each\n * successive action is supplied the return value of the previous.\n *\n * @private\n * @param {*} value The unwrapped value.\n * @param {Array} actions Actions to perform to resolve the unwrapped value.\n * @returns {*} Returns the resolved value.\n */\n function baseWrapperValue(value, actions) {\n var result = value;\n if (result instanceof LazyWrapper) {\n result = result.value();\n }\n return arrayReduce(actions, function(result, action) {\n return action.func.apply(action.thisArg, arrayPush([result], action.args));\n }, result);\n }\n\n /**\n * The base implementation of methods like `_.xor`, without support for\n * iteratee shorthands, that accepts an array of arrays to inspect.\n *\n * @private\n * @param {Array} arrays The arrays to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of values.\n */\n function baseXor(arrays, iteratee, comparator) {\n var length = arrays.length;\n if (length < 2) {\n return length ? baseUniq(arrays[0]) : [];\n }\n var index = -1,\n result = Array(length);\n\n while (++index < length) {\n var array = arrays[index],\n othIndex = -1;\n\n while (++othIndex < length) {\n if (othIndex != index) {\n result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator);\n }\n }\n }\n return baseUniq(baseFlatten(result, 1), iteratee, comparator);\n }\n\n /**\n * This base implementation of `_.zipObject` which assigns values using `assignFunc`.\n *\n * @private\n * @param {Array} props The property identifiers.\n * @param {Array} values The property values.\n * @param {Function} assignFunc The function to assign values.\n * @returns {Object} Returns the new object.\n */\n function baseZipObject(props, values, assignFunc) {\n var index = -1,\n length = props.length,\n valsLength = values.length,\n result = {};\n\n while (++index < length) {\n var value = index < valsLength ? values[index] : undefined;\n assignFunc(result, props[index], value);\n }\n return result;\n }\n\n /**\n * Casts `value` to an empty array if it's not an array like object.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {Array|Object} Returns the cast array-like object.\n */\n function castArrayLikeObject(value) {\n return isArrayLikeObject(value) ? value : [];\n }\n\n /**\n * Casts `value` to `identity` if it's not a function.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {Function} Returns cast function.\n */\n function castFunction(value) {\n return typeof value == 'function' ? value : identity;\n }\n\n /**\n * Casts `value` to a path array if it's not one.\n *\n * @private\n * @param {*} value The value to inspect.\n * @param {Object} [object] The object to query keys on.\n * @returns {Array} Returns the cast property path array.\n */\n function castPath(value, object) {\n if (isArray(value)) {\n return value;\n }\n return isKey(value, object) ? [value] : stringToPath(toString(value));\n }\n\n /**\n * A `baseRest` alias which can be replaced with `identity` by module\n * replacement plugins.\n *\n * @private\n * @type {Function}\n * @param {Function} func The function to apply a rest parameter to.\n * @returns {Function} Returns the new function.\n */\n var castRest = baseRest;\n\n /**\n * Casts `array` to a slice if it's needed.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {number} start The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the cast slice.\n */\n function castSlice(array, start, end) {\n var length = array.length;\n end = end === undefined ? length : end;\n return (!start && end >= length) ? array : baseSlice(array, start, end);\n }\n\n /**\n * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout).\n *\n * @private\n * @param {number|Object} id The timer id or timeout object of the timer to clear.\n */\n var clearTimeout = ctxClearTimeout || function(id) {\n return root.clearTimeout(id);\n };\n\n /**\n * Creates a clone of `buffer`.\n *\n * @private\n * @param {Buffer} buffer The buffer to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Buffer} Returns the cloned buffer.\n */\n function cloneBuffer(buffer, isDeep) {\n if (isDeep) {\n return buffer.slice();\n }\n var length = buffer.length,\n result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);\n\n buffer.copy(result);\n return result;\n }\n\n /**\n * Creates a clone of `arrayBuffer`.\n *\n * @private\n * @param {ArrayBuffer} arrayBuffer The array buffer to clone.\n * @returns {ArrayBuffer} Returns the cloned array buffer.\n */\n function cloneArrayBuffer(arrayBuffer) {\n var result = new arrayBuffer.constructor(arrayBuffer.byteLength);\n new Uint8Array(result).set(new Uint8Array(arrayBuffer));\n return result;\n }\n\n /**\n * Creates a clone of `dataView`.\n *\n * @private\n * @param {Object} dataView The data view to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned data view.\n */\n function cloneDataView(dataView, isDeep) {\n var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;\n return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);\n }\n\n /**\n * Creates a clone of `regexp`.\n *\n * @private\n * @param {Object} regexp The regexp to clone.\n * @returns {Object} Returns the cloned regexp.\n */\n function cloneRegExp(regexp) {\n var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));\n result.lastIndex = regexp.lastIndex;\n return result;\n }\n\n /**\n * Creates a clone of the `symbol` object.\n *\n * @private\n * @param {Object} symbol The symbol object to clone.\n * @returns {Object} Returns the cloned symbol object.\n */\n function cloneSymbol(symbol) {\n return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};\n }\n\n /**\n * Creates a clone of `typedArray`.\n *\n * @private\n * @param {Object} typedArray The typed array to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned typed array.\n */\n function cloneTypedArray(typedArray, isDeep) {\n var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;\n return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);\n }\n\n /**\n * Compares values to sort them in ascending order.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {number} Returns the sort order indicator for `value`.\n */\n function compareAscending(value, other) {\n if (value !== other) {\n var valIsDefined = value !== undefined,\n valIsNull = value === null,\n valIsReflexive = value === value,\n valIsSymbol = isSymbol(value);\n\n var othIsDefined = other !== undefined,\n othIsNull = other === null,\n othIsReflexive = other === other,\n othIsSymbol = isSymbol(other);\n\n if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||\n (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) ||\n (valIsNull && othIsDefined && othIsReflexive) ||\n (!valIsDefined && othIsReflexive) ||\n !valIsReflexive) {\n return 1;\n }\n if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||\n (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) ||\n (othIsNull && valIsDefined && valIsReflexive) ||\n (!othIsDefined && valIsReflexive) ||\n !othIsReflexive) {\n return -1;\n }\n }\n return 0;\n }\n\n /**\n * Used by `_.orderBy` to compare multiple properties of a value to another\n * and stable sort them.\n *\n * If `orders` is unspecified, all values are sorted in ascending order. Otherwise,\n * specify an order of \"desc\" for descending or \"asc\" for ascending sort order\n * of corresponding values.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {boolean[]|string[]} orders The order to sort by for each property.\n * @returns {number} Returns the sort order indicator for `object`.\n */\n function compareMultiple(object, other, orders) {\n var index = -1,\n objCriteria = object.criteria,\n othCriteria = other.criteria,\n length = objCriteria.length,\n ordersLength = orders.length;\n\n while (++index < length) {\n var result = compareAscending(objCriteria[index], othCriteria[index]);\n if (result) {\n if (index >= ordersLength) {\n return result;\n }\n var order = orders[index];\n return result * (order == 'desc' ? -1 : 1);\n }\n }\n // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications\n // that causes it, under certain circumstances, to provide the same value for\n // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247\n // for more details.\n //\n // This also ensures a stable sort in V8 and other engines.\n // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.\n return object.index - other.index;\n }\n\n /**\n * Creates an array that is the composition of partially applied arguments,\n * placeholders, and provided arguments into a single array of arguments.\n *\n * @private\n * @param {Array} args The provided arguments.\n * @param {Array} partials The arguments to prepend to those provided.\n * @param {Array} holders The `partials` placeholder indexes.\n * @params {boolean} [isCurried] Specify composing for a curried function.\n * @returns {Array} Returns the new array of composed arguments.\n */\n function composeArgs(args, partials, holders, isCurried) {\n var argsIndex = -1,\n argsLength = args.length,\n holdersLength = holders.length,\n leftIndex = -1,\n leftLength = partials.length,\n rangeLength = nativeMax(argsLength - holdersLength, 0),\n result = Array(leftLength + rangeLength),\n isUncurried = !isCurried;\n\n while (++leftIndex < leftLength) {\n result[leftIndex] = partials[leftIndex];\n }\n while (++argsIndex < holdersLength) {\n if (isUncurried || argsIndex < argsLength) {\n result[holders[argsIndex]] = args[argsIndex];\n }\n }\n while (rangeLength--) {\n result[leftIndex++] = args[argsIndex++];\n }\n return result;\n }\n\n /**\n * This function is like `composeArgs` except that the arguments composition\n * is tailored for `_.partialRight`.\n *\n * @private\n * @param {Array} args The provided arguments.\n * @param {Array} partials The arguments to append to those provided.\n * @param {Array} holders The `partials` placeholder indexes.\n * @params {boolean} [isCurried] Specify composing for a curried function.\n * @returns {Array} Returns the new array of composed arguments.\n */\n function composeArgsRight(args, partials, holders, isCurried) {\n var argsIndex = -1,\n argsLength = args.length,\n holdersIndex = -1,\n holdersLength = holders.length,\n rightIndex = -1,\n rightLength = partials.length,\n rangeLength = nativeMax(argsLength - holdersLength, 0),\n result = Array(rangeLength + rightLength),\n isUncurried = !isCurried;\n\n while (++argsIndex < rangeLength) {\n result[argsIndex] = args[argsIndex];\n }\n var offset = argsIndex;\n while (++rightIndex < rightLength) {\n result[offset + rightIndex] = partials[rightIndex];\n }\n while (++holdersIndex < holdersLength) {\n if (isUncurried || argsIndex < argsLength) {\n result[offset + holders[holdersIndex]] = args[argsIndex++];\n }\n }\n return result;\n }\n\n /**\n * Copies the values of `source` to `array`.\n *\n * @private\n * @param {Array} source The array to copy values from.\n * @param {Array} [array=[]] The array to copy values to.\n * @returns {Array} Returns `array`.\n */\n function copyArray(source, array) {\n var index = -1,\n length = source.length;\n\n array || (array = Array(length));\n while (++index < length) {\n array[index] = source[index];\n }\n return array;\n }\n\n /**\n * Copies properties of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy properties from.\n * @param {Array} props The property identifiers to copy.\n * @param {Object} [object={}] The object to copy properties to.\n * @param {Function} [customizer] The function to customize copied values.\n * @returns {Object} Returns `object`.\n */\n function copyObject(source, props, object, customizer) {\n var isNew = !object;\n object || (object = {});\n\n var index = -1,\n length = props.length;\n\n while (++index < length) {\n var key = props[index];\n\n var newValue = customizer\n ? customizer(object[key], source[key], key, object, source)\n : undefined;\n\n if (newValue === undefined) {\n newValue = source[key];\n }\n if (isNew) {\n baseAssignValue(object, key, newValue);\n } else {\n assignValue(object, key, newValue);\n }\n }\n return object;\n }\n\n /**\n * Copies own symbols of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy symbols from.\n * @param {Object} [object={}] The object to copy symbols to.\n * @returns {Object} Returns `object`.\n */\n function copySymbols(source, object) {\n return copyObject(source, getSymbols(source), object);\n }\n\n /**\n * Copies own and inherited symbols of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy symbols from.\n * @param {Object} [object={}] The object to copy symbols to.\n * @returns {Object} Returns `object`.\n */\n function copySymbolsIn(source, object) {\n return copyObject(source, getSymbolsIn(source), object);\n }\n\n /**\n * Creates a function like `_.groupBy`.\n *\n * @private\n * @param {Function} setter The function to set accumulator values.\n * @param {Function} [initializer] The accumulator object initializer.\n * @returns {Function} Returns the new aggregator function.\n */\n function createAggregator(setter, initializer) {\n return function(collection, iteratee) {\n var func = isArray(collection) ? arrayAggregator : baseAggregator,\n accumulator = initializer ? initializer() : {};\n\n return func(collection, setter, getIteratee(iteratee, 2), accumulator);\n };\n }\n\n /**\n * Creates a function like `_.assign`.\n *\n * @private\n * @param {Function} assigner The function to assign values.\n * @returns {Function} Returns the new assigner function.\n */\n function createAssigner(assigner) {\n return baseRest(function(object, sources) {\n var index = -1,\n length = sources.length,\n customizer = length > 1 ? sources[length - 1] : undefined,\n guard = length > 2 ? sources[2] : undefined;\n\n customizer = (assigner.length > 3 && typeof customizer == 'function')\n ? (length--, customizer)\n : undefined;\n\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n customizer = length < 3 ? undefined : customizer;\n length = 1;\n }\n object = Object(object);\n while (++index < length) {\n var source = sources[index];\n if (source) {\n assigner(object, source, index, customizer);\n }\n }\n return object;\n });\n }\n\n /**\n * Creates a `baseEach` or `baseEachRight` function.\n *\n * @private\n * @param {Function} eachFunc The function to iterate over a collection.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\n function createBaseEach(eachFunc, fromRight) {\n return function(collection, iteratee) {\n if (collection == null) {\n return collection;\n }\n if (!isArrayLike(collection)) {\n return eachFunc(collection, iteratee);\n }\n var length = collection.length,\n index = fromRight ? length : -1,\n iterable = Object(collection);\n\n while ((fromRight ? index-- : ++index < length)) {\n if (iteratee(iterable[index], index, iterable) === false) {\n break;\n }\n }\n return collection;\n };\n }\n\n /**\n * Creates a base function for methods like `_.forIn` and `_.forOwn`.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\n function createBaseFor(fromRight) {\n return function(object, iteratee, keysFunc) {\n var index = -1,\n iterable = Object(object),\n props = keysFunc(object),\n length = props.length;\n\n while (length--) {\n var key = props[fromRight ? length : ++index];\n if (iteratee(iterable[key], key, iterable) === false) {\n break;\n }\n }\n return object;\n };\n }\n\n /**\n * Creates a function that wraps `func` to invoke it with the optional `this`\n * binding of `thisArg`.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createBind(func, bitmask, thisArg) {\n var isBind = bitmask & WRAP_BIND_FLAG,\n Ctor = createCtor(func);\n\n function wrapper() {\n var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n return fn.apply(isBind ? thisArg : this, arguments);\n }\n return wrapper;\n }\n\n /**\n * Creates a function like `_.lowerFirst`.\n *\n * @private\n * @param {string} methodName The name of the `String` case method to use.\n * @returns {Function} Returns the new case function.\n */\n function createCaseFirst(methodName) {\n return function(string) {\n string = toString(string);\n\n var strSymbols = hasUnicode(string)\n ? stringToArray(string)\n : undefined;\n\n var chr = strSymbols\n ? strSymbols[0]\n : string.charAt(0);\n\n var trailing = strSymbols\n ? castSlice(strSymbols, 1).join('')\n : string.slice(1);\n\n return chr[methodName]() + trailing;\n };\n }\n\n /**\n * Creates a function like `_.camelCase`.\n *\n * @private\n * @param {Function} callback The function to combine each word.\n * @returns {Function} Returns the new compounder function.\n */\n function createCompounder(callback) {\n return function(string) {\n return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');\n };\n }\n\n /**\n * Creates a function that produces an instance of `Ctor` regardless of\n * whether it was invoked as part of a `new` expression or by `call` or `apply`.\n *\n * @private\n * @param {Function} Ctor The constructor to wrap.\n * @returns {Function} Returns the new wrapped function.\n */\n function createCtor(Ctor) {\n return function() {\n // Use a `switch` statement to work with class constructors. See\n // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist\n // for more details.\n var args = arguments;\n switch (args.length) {\n case 0: return new Ctor;\n case 1: return new Ctor(args[0]);\n case 2: return new Ctor(args[0], args[1]);\n case 3: return new Ctor(args[0], args[1], args[2]);\n case 4: return new Ctor(args[0], args[1], args[2], args[3]);\n case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);\n case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);\n case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);\n }\n var thisBinding = baseCreate(Ctor.prototype),\n result = Ctor.apply(thisBinding, args);\n\n // Mimic the constructor's `return` behavior.\n // See https://es5.github.io/#x13.2.2 for more details.\n return isObject(result) ? result : thisBinding;\n };\n }\n\n /**\n * Creates a function that wraps `func` to enable currying.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {number} arity The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createCurry(func, bitmask, arity) {\n var Ctor = createCtor(func);\n\n function wrapper() {\n var length = arguments.length,\n args = Array(length),\n index = length,\n placeholder = getHolder(wrapper);\n\n while (index--) {\n args[index] = arguments[index];\n }\n var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder)\n ? []\n : replaceHolders(args, placeholder);\n\n length -= holders.length;\n if (length < arity) {\n return createRecurry(\n func, bitmask, createHybrid, wrapper.placeholder, undefined,\n args, holders, undefined, undefined, arity - length);\n }\n var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n return apply(fn, this, args);\n }\n return wrapper;\n }\n\n /**\n * Creates a `_.find` or `_.findLast` function.\n *\n * @private\n * @param {Function} findIndexFunc The function to find the collection index.\n * @returns {Function} Returns the new find function.\n */\n function createFind(findIndexFunc) {\n return function(collection, predicate, fromIndex) {\n var iterable = Object(collection);\n if (!isArrayLike(collection)) {\n var iteratee = getIteratee(predicate, 3);\n collection = keys(collection);\n predicate = function(key) { return iteratee(iterable[key], key, iterable); };\n }\n var index = findIndexFunc(collection, predicate, fromIndex);\n return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined;\n };\n }\n\n /**\n * Creates a `_.flow` or `_.flowRight` function.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new flow function.\n */\n function createFlow(fromRight) {\n return flatRest(function(funcs) {\n var length = funcs.length,\n index = length,\n prereq = LodashWrapper.prototype.thru;\n\n if (fromRight) {\n funcs.reverse();\n }\n while (index--) {\n var func = funcs[index];\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n if (prereq && !wrapper && getFuncName(func) == 'wrapper') {\n var wrapper = new LodashWrapper([], true);\n }\n }\n index = wrapper ? index : length;\n while (++index < length) {\n func = funcs[index];\n\n var funcName = getFuncName(func),\n data = funcName == 'wrapper' ? getData(func) : undefined;\n\n if (data && isLaziable(data[0]) &&\n data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) &&\n !data[4].length && data[9] == 1\n ) {\n wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);\n } else {\n wrapper = (func.length == 1 && isLaziable(func))\n ? wrapper[funcName]()\n : wrapper.thru(func);\n }\n }\n return function() {\n var args = arguments,\n value = args[0];\n\n if (wrapper && args.length == 1 && isArray(value)) {\n return wrapper.plant(value).value();\n }\n var index = 0,\n result = length ? funcs[index].apply(this, args) : value;\n\n while (++index < length) {\n result = funcs[index].call(this, result);\n }\n return result;\n };\n });\n }\n\n /**\n * Creates a function that wraps `func` to invoke it with optional `this`\n * binding of `thisArg`, partial application, and currying.\n *\n * @private\n * @param {Function|string} func The function or method name to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to prepend to those provided to\n * the new function.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [partialsRight] The arguments to append to those provided\n * to the new function.\n * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {\n var isAry = bitmask & WRAP_ARY_FLAG,\n isBind = bitmask & WRAP_BIND_FLAG,\n isBindKey = bitmask & WRAP_BIND_KEY_FLAG,\n isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG),\n isFlip = bitmask & WRAP_FLIP_FLAG,\n Ctor = isBindKey ? undefined : createCtor(func);\n\n function wrapper() {\n var length = arguments.length,\n args = Array(length),\n index = length;\n\n while (index--) {\n args[index] = arguments[index];\n }\n if (isCurried) {\n var placeholder = getHolder(wrapper),\n holdersCount = countHolders(args, placeholder);\n }\n if (partials) {\n args = composeArgs(args, partials, holders, isCurried);\n }\n if (partialsRight) {\n args = composeArgsRight(args, partialsRight, holdersRight, isCurried);\n }\n length -= holdersCount;\n if (isCurried && length < arity) {\n var newHolders = replaceHolders(args, placeholder);\n return createRecurry(\n func, bitmask, createHybrid, wrapper.placeholder, thisArg,\n args, newHolders, argPos, ary, arity - length\n );\n }\n var thisBinding = isBind ? thisArg : this,\n fn = isBindKey ? thisBinding[func] : func;\n\n length = args.length;\n if (argPos) {\n args = reorder(args, argPos);\n } else if (isFlip && length > 1) {\n args.reverse();\n }\n if (isAry && ary < length) {\n args.length = ary;\n }\n if (this && this !== root && this instanceof wrapper) {\n fn = Ctor || createCtor(fn);\n }\n return fn.apply(thisBinding, args);\n }\n return wrapper;\n }\n\n /**\n * Creates a function like `_.invertBy`.\n *\n * @private\n * @param {Function} setter The function to set accumulator values.\n * @param {Function} toIteratee The function to resolve iteratees.\n * @returns {Function} Returns the new inverter function.\n */\n function createInverter(setter, toIteratee) {\n return function(object, iteratee) {\n return baseInverter(object, setter, toIteratee(iteratee), {});\n };\n }\n\n /**\n * Creates a function that performs a mathematical operation on two values.\n *\n * @private\n * @param {Function} operator The function to perform the operation.\n * @param {number} [defaultValue] The value used for `undefined` arguments.\n * @returns {Function} Returns the new mathematical operation function.\n */\n function createMathOperation(operator, defaultValue) {\n return function(value, other) {\n var result;\n if (value === undefined && other === undefined) {\n return defaultValue;\n }\n if (value !== undefined) {\n result = value;\n }\n if (other !== undefined) {\n if (result === undefined) {\n return other;\n }\n if (typeof value == 'string' || typeof other == 'string') {\n value = baseToString(value);\n other = baseToString(other);\n } else {\n value = baseToNumber(value);\n other = baseToNumber(other);\n }\n result = operator(value, other);\n }\n return result;\n };\n }\n\n /**\n * Creates a function like `_.over`.\n *\n * @private\n * @param {Function} arrayFunc The function to iterate over iteratees.\n * @returns {Function} Returns the new over function.\n */\n function createOver(arrayFunc) {\n return flatRest(function(iteratees) {\n iteratees = arrayMap(iteratees, baseUnary(getIteratee()));\n return baseRest(function(args) {\n var thisArg = this;\n return arrayFunc(iteratees, function(iteratee) {\n return apply(iteratee, thisArg, args);\n });\n });\n });\n }\n\n /**\n * Creates the padding for `string` based on `length`. The `chars` string\n * is truncated if the number of characters exceeds `length`.\n *\n * @private\n * @param {number} length The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padding for `string`.\n */\n function createPadding(length, chars) {\n chars = chars === undefined ? ' ' : baseToString(chars);\n\n var charsLength = chars.length;\n if (charsLength < 2) {\n return charsLength ? baseRepeat(chars, length) : chars;\n }\n var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));\n return hasUnicode(chars)\n ? castSlice(stringToArray(result), 0, length).join('')\n : result.slice(0, length);\n }\n\n /**\n * Creates a function that wraps `func` to invoke it with the `this` binding\n * of `thisArg` and `partials` prepended to the arguments it receives.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {Array} partials The arguments to prepend to those provided to\n * the new function.\n * @returns {Function} Returns the new wrapped function.\n */\n function createPartial(func, bitmask, thisArg, partials) {\n var isBind = bitmask & WRAP_BIND_FLAG,\n Ctor = createCtor(func);\n\n function wrapper() {\n var argsIndex = -1,\n argsLength = arguments.length,\n leftIndex = -1,\n leftLength = partials.length,\n args = Array(leftLength + argsLength),\n fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n\n while (++leftIndex < leftLength) {\n args[leftIndex] = partials[leftIndex];\n }\n while (argsLength--) {\n args[leftIndex++] = arguments[++argsIndex];\n }\n return apply(fn, isBind ? thisArg : this, args);\n }\n return wrapper;\n }\n\n /**\n * Creates a `_.range` or `_.rangeRight` function.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new range function.\n */\n function createRange(fromRight) {\n return function(start, end, step) {\n if (step && typeof step != 'number' && isIterateeCall(start, end, step)) {\n end = step = undefined;\n }\n // Ensure the sign of `-0` is preserved.\n start = toFinite(start);\n if (end === undefined) {\n end = start;\n start = 0;\n } else {\n end = toFinite(end);\n }\n step = step === undefined ? (start < end ? 1 : -1) : toFinite(step);\n return baseRange(start, end, step, fromRight);\n };\n }\n\n /**\n * Creates a function that performs a relational operation on two values.\n *\n * @private\n * @param {Function} operator The function to perform the operation.\n * @returns {Function} Returns the new relational operation function.\n */\n function createRelationalOperation(operator) {\n return function(value, other) {\n if (!(typeof value == 'string' && typeof other == 'string')) {\n value = toNumber(value);\n other = toNumber(other);\n }\n return operator(value, other);\n };\n }\n\n /**\n * Creates a function that wraps `func` to continue currying.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {Function} wrapFunc The function to create the `func` wrapper.\n * @param {*} placeholder The placeholder value.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to prepend to those provided to\n * the new function.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {\n var isCurry = bitmask & WRAP_CURRY_FLAG,\n newHolders = isCurry ? holders : undefined,\n newHoldersRight = isCurry ? undefined : holders,\n newPartials = isCurry ? partials : undefined,\n newPartialsRight = isCurry ? undefined : partials;\n\n bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG);\n bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG);\n\n if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) {\n bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG);\n }\n var newData = [\n func, bitmask, thisArg, newPartials, newHolders, newPartialsRight,\n newHoldersRight, argPos, ary, arity\n ];\n\n var result = wrapFunc.apply(undefined, newData);\n if (isLaziable(func)) {\n setData(result, newData);\n }\n result.placeholder = placeholder;\n return setWrapToString(result, func, bitmask);\n }\n\n /**\n * Creates a function like `_.round`.\n *\n * @private\n * @param {string} methodName The name of the `Math` method to use when rounding.\n * @returns {Function} Returns the new round function.\n */\n function createRound(methodName) {\n var func = Math[methodName];\n return function(number, precision) {\n number = toNumber(number);\n precision = precision == null ? 0 : nativeMin(toInteger(precision), 292);\n if (precision && nativeIsFinite(number)) {\n // Shift with exponential notation to avoid floating-point issues.\n // See [MDN](https://mdn.io/round#Examples) for more details.\n var pair = (toString(number) + 'e').split('e'),\n value = func(pair[0] + 'e' + (+pair[1] + precision));\n\n pair = (toString(value) + 'e').split('e');\n return +(pair[0] + 'e' + (+pair[1] - precision));\n }\n return func(number);\n };\n }\n\n /**\n * Creates a set object of `values`.\n *\n * @private\n * @param {Array} values The values to add to the set.\n * @returns {Object} Returns the new set.\n */\n var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) {\n return new Set(values);\n };\n\n /**\n * Creates a `_.toPairs` or `_.toPairsIn` function.\n *\n * @private\n * @param {Function} keysFunc The function to get the keys of a given object.\n * @returns {Function} Returns the new pairs function.\n */\n function createToPairs(keysFunc) {\n return function(object) {\n var tag = getTag(object);\n if (tag == mapTag) {\n return mapToArray(object);\n }\n if (tag == setTag) {\n return setToPairs(object);\n }\n return baseToPairs(object, keysFunc(object));\n };\n }\n\n /**\n * Creates a function that either curries or invokes `func` with optional\n * `this` binding and partially applied arguments.\n *\n * @private\n * @param {Function|string} func The function or method name to wrap.\n * @param {number} bitmask The bitmask flags.\n * 1 - `_.bind`\n * 2 - `_.bindKey`\n * 4 - `_.curry` or `_.curryRight` of a bound function\n * 8 - `_.curry`\n * 16 - `_.curryRight`\n * 32 - `_.partial`\n * 64 - `_.partialRight`\n * 128 - `_.rearg`\n * 256 - `_.ary`\n * 512 - `_.flip`\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to be partially applied.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {\n var isBindKey = bitmask & WRAP_BIND_KEY_FLAG;\n if (!isBindKey && typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n var length = partials ? partials.length : 0;\n if (!length) {\n bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG);\n partials = holders = undefined;\n }\n ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0);\n arity = arity === undefined ? arity : toInteger(arity);\n length -= holders ? holders.length : 0;\n\n if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) {\n var partialsRight = partials,\n holdersRight = holders;\n\n partials = holders = undefined;\n }\n var data = isBindKey ? undefined : getData(func);\n\n var newData = [\n func, bitmask, thisArg, partials, holders, partialsRight, holdersRight,\n argPos, ary, arity\n ];\n\n if (data) {\n mergeData(newData, data);\n }\n func = newData[0];\n bitmask = newData[1];\n thisArg = newData[2];\n partials = newData[3];\n holders = newData[4];\n arity = newData[9] = newData[9] === undefined\n ? (isBindKey ? 0 : func.length)\n : nativeMax(newData[9] - length, 0);\n\n if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) {\n bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG);\n }\n if (!bitmask || bitmask == WRAP_BIND_FLAG) {\n var result = createBind(func, bitmask, thisArg);\n } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) {\n result = createCurry(func, bitmask, arity);\n } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) {\n result = createPartial(func, bitmask, thisArg, partials);\n } else {\n result = createHybrid.apply(undefined, newData);\n }\n var setter = data ? baseSetData : setData;\n return setWrapToString(setter(result, newData), func, bitmask);\n }\n\n /**\n * Used by `_.defaults` to customize its `_.assignIn` use to assign properties\n * of source objects to the destination object for all destination properties\n * that resolve to `undefined`.\n *\n * @private\n * @param {*} objValue The destination value.\n * @param {*} srcValue The source value.\n * @param {string} key The key of the property to assign.\n * @param {Object} object The parent object of `objValue`.\n * @returns {*} Returns the value to assign.\n */\n function customDefaultsAssignIn(objValue, srcValue, key, object) {\n if (objValue === undefined ||\n (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) {\n return srcValue;\n }\n return objValue;\n }\n\n /**\n * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source\n * objects into destination objects that are passed thru.\n *\n * @private\n * @param {*} objValue The destination value.\n * @param {*} srcValue The source value.\n * @param {string} key The key of the property to merge.\n * @param {Object} object The parent object of `objValue`.\n * @param {Object} source The parent object of `srcValue`.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n * @returns {*} Returns the value to assign.\n */\n function customDefaultsMerge(objValue, srcValue, key, object, source, stack) {\n if (isObject(objValue) && isObject(srcValue)) {\n // Recursively merge objects and arrays (susceptible to call stack limits).\n stack.set(srcValue, objValue);\n baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack);\n stack['delete'](srcValue);\n }\n return objValue;\n }\n\n /**\n * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain\n * objects.\n *\n * @private\n * @param {*} value The value to inspect.\n * @param {string} key The key of the property to inspect.\n * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`.\n */\n function customOmitClone(value) {\n return isPlainObject(value) ? undefined : value;\n }\n\n /**\n * A specialized version of `baseIsEqualDeep` for arrays with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Array} array The array to compare.\n * @param {Array} other The other array to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `array` and `other` objects.\n * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.\n */\n function equalArrays(array, other, bitmask, customizer, equalFunc, stack) {\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n arrLength = array.length,\n othLength = other.length;\n\n if (arrLength != othLength && !(isPartial && othLength > arrLength)) {\n return false;\n }\n // Check that cyclic values are equal.\n var arrStacked = stack.get(array);\n var othStacked = stack.get(other);\n if (arrStacked && othStacked) {\n return arrStacked == other && othStacked == array;\n }\n var index = -1,\n result = true,\n seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined;\n\n stack.set(array, other);\n stack.set(other, array);\n\n // Ignore non-index properties.\n while (++index < arrLength) {\n var arrValue = array[index],\n othValue = other[index];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, arrValue, index, other, array, stack)\n : customizer(arrValue, othValue, index, array, other, stack);\n }\n if (compared !== undefined) {\n if (compared) {\n continue;\n }\n result = false;\n break;\n }\n // Recursively compare arrays (susceptible to call stack limits).\n if (seen) {\n if (!arraySome(other, function(othValue, othIndex) {\n if (!cacheHas(seen, othIndex) &&\n (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {\n return seen.push(othIndex);\n }\n })) {\n result = false;\n break;\n }\n } else if (!(\n arrValue === othValue ||\n equalFunc(arrValue, othValue, bitmask, customizer, stack)\n )) {\n result = false;\n break;\n }\n }\n stack['delete'](array);\n stack['delete'](other);\n return result;\n }\n\n /**\n * A specialized version of `baseIsEqualDeep` for comparing objects of\n * the same `toStringTag`.\n *\n * **Note:** This function only supports comparing values with tags of\n * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {string} tag The `toStringTag` of the objects to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\n function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {\n switch (tag) {\n case dataViewTag:\n if ((object.byteLength != other.byteLength) ||\n (object.byteOffset != other.byteOffset)) {\n return false;\n }\n object = object.buffer;\n other = other.buffer;\n\n case arrayBufferTag:\n if ((object.byteLength != other.byteLength) ||\n !equalFunc(new Uint8Array(object), new Uint8Array(other))) {\n return false;\n }\n return true;\n\n case boolTag:\n case dateTag:\n case numberTag:\n // Coerce booleans to `1` or `0` and dates to milliseconds.\n // Invalid dates are coerced to `NaN`.\n return eq(+object, +other);\n\n case errorTag:\n return object.name == other.name && object.message == other.message;\n\n case regexpTag:\n case stringTag:\n // Coerce regexes to strings and treat strings, primitives and objects,\n // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring\n // for more details.\n return object == (other + '');\n\n case mapTag:\n var convert = mapToArray;\n\n case setTag:\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG;\n convert || (convert = setToArray);\n\n if (object.size != other.size && !isPartial) {\n return false;\n }\n // Assume cyclic values are equal.\n var stacked = stack.get(object);\n if (stacked) {\n return stacked == other;\n }\n bitmask |= COMPARE_UNORDERED_FLAG;\n\n // Recursively compare objects (susceptible to call stack limits).\n stack.set(object, other);\n var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);\n stack['delete'](object);\n return result;\n\n case symbolTag:\n if (symbolValueOf) {\n return symbolValueOf.call(object) == symbolValueOf.call(other);\n }\n }\n return false;\n }\n\n /**\n * A specialized version of `baseIsEqualDeep` for objects with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\n function equalObjects(object, other, bitmask, customizer, equalFunc, stack) {\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n objProps = getAllKeys(object),\n objLength = objProps.length,\n othProps = getAllKeys(other),\n othLength = othProps.length;\n\n if (objLength != othLength && !isPartial) {\n return false;\n }\n var index = objLength;\n while (index--) {\n var key = objProps[index];\n if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {\n return false;\n }\n }\n // Check that cyclic values are equal.\n var objStacked = stack.get(object);\n var othStacked = stack.get(other);\n if (objStacked && othStacked) {\n return objStacked == other && othStacked == object;\n }\n var result = true;\n stack.set(object, other);\n stack.set(other, object);\n\n var skipCtor = isPartial;\n while (++index < objLength) {\n key = objProps[index];\n var objValue = object[key],\n othValue = other[key];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, objValue, key, other, object, stack)\n : customizer(objValue, othValue, key, object, other, stack);\n }\n // Recursively compare objects (susceptible to call stack limits).\n if (!(compared === undefined\n ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))\n : compared\n )) {\n result = false;\n break;\n }\n skipCtor || (skipCtor = key == 'constructor');\n }\n if (result && !skipCtor) {\n var objCtor = object.constructor,\n othCtor = other.constructor;\n\n // Non `Object` object instances with different constructors are not equal.\n if (objCtor != othCtor &&\n ('constructor' in object && 'constructor' in other) &&\n !(typeof objCtor == 'function' && objCtor instanceof objCtor &&\n typeof othCtor == 'function' && othCtor instanceof othCtor)) {\n result = false;\n }\n }\n stack['delete'](object);\n stack['delete'](other);\n return result;\n }\n\n /**\n * A specialized version of `baseRest` which flattens the rest array.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @returns {Function} Returns the new function.\n */\n function flatRest(func) {\n return setToString(overRest(func, undefined, flatten), func + '');\n }\n\n /**\n * Creates an array of own enumerable property names and symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\n function getAllKeys(object) {\n return baseGetAllKeys(object, keys, getSymbols);\n }\n\n /**\n * Creates an array of own and inherited enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\n function getAllKeysIn(object) {\n return baseGetAllKeys(object, keysIn, getSymbolsIn);\n }\n\n /**\n * Gets metadata for `func`.\n *\n * @private\n * @param {Function} func The function to query.\n * @returns {*} Returns the metadata for `func`.\n */\n var getData = !metaMap ? noop : function(func) {\n return metaMap.get(func);\n };\n\n /**\n * Gets the name of `func`.\n *\n * @private\n * @param {Function} func The function to query.\n * @returns {string} Returns the function name.\n */\n function getFuncName(func) {\n var result = (func.name + ''),\n array = realNames[result],\n length = hasOwnProperty.call(realNames, result) ? array.length : 0;\n\n while (length--) {\n var data = array[length],\n otherFunc = data.func;\n if (otherFunc == null || otherFunc == func) {\n return data.name;\n }\n }\n return result;\n }\n\n /**\n * Gets the argument placeholder value for `func`.\n *\n * @private\n * @param {Function} func The function to inspect.\n * @returns {*} Returns the placeholder value.\n */\n function getHolder(func) {\n var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func;\n return object.placeholder;\n }\n\n /**\n * Gets the appropriate \"iteratee\" function. If `_.iteratee` is customized,\n * this function returns the custom method, otherwise it returns `baseIteratee`.\n * If arguments are provided, the chosen function is invoked with them and\n * its result is returned.\n *\n * @private\n * @param {*} [value] The value to convert to an iteratee.\n * @param {number} [arity] The arity of the created iteratee.\n * @returns {Function} Returns the chosen function or its result.\n */\n function getIteratee() {\n var result = lodash.iteratee || iteratee;\n result = result === iteratee ? baseIteratee : result;\n return arguments.length ? result(arguments[0], arguments[1]) : result;\n }\n\n /**\n * Gets the data for `map`.\n *\n * @private\n * @param {Object} map The map to query.\n * @param {string} key The reference key.\n * @returns {*} Returns the map data.\n */\n function getMapData(map, key) {\n var data = map.__data__;\n return isKeyable(key)\n ? data[typeof key == 'string' ? 'string' : 'hash']\n : data.map;\n }\n\n /**\n * Gets the property names, values, and compare flags of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the match data of `object`.\n */\n function getMatchData(object) {\n var result = keys(object),\n length = result.length;\n\n while (length--) {\n var key = result[length],\n value = object[key];\n\n result[length] = [key, value, isStrictComparable(value)];\n }\n return result;\n }\n\n /**\n * Gets the native function at `key` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the method to get.\n * @returns {*} Returns the function if it's native, else `undefined`.\n */\n function getNative(object, key) {\n var value = getValue(object, key);\n return baseIsNative(value) ? value : undefined;\n }\n\n /**\n * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the raw `toStringTag`.\n */\n function getRawTag(value) {\n var isOwn = hasOwnProperty.call(value, symToStringTag),\n tag = value[symToStringTag];\n\n try {\n value[symToStringTag] = undefined;\n var unmasked = true;\n } catch (e) {}\n\n var result = nativeObjectToString.call(value);\n if (unmasked) {\n if (isOwn) {\n value[symToStringTag] = tag;\n } else {\n delete value[symToStringTag];\n }\n }\n return result;\n }\n\n /**\n * Creates an array of the own enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\n var getSymbols = !nativeGetSymbols ? stubArray : function(object) {\n if (object == null) {\n return [];\n }\n object = Object(object);\n return arrayFilter(nativeGetSymbols(object), function(symbol) {\n return propertyIsEnumerable.call(object, symbol);\n });\n };\n\n /**\n * Creates an array of the own and inherited enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\n var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) {\n var result = [];\n while (object) {\n arrayPush(result, getSymbols(object));\n object = getPrototype(object);\n }\n return result;\n };\n\n /**\n * Gets the `toStringTag` of `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\n var getTag = baseGetTag;\n\n // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.\n if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||\n (Map && getTag(new Map) != mapTag) ||\n (Promise && getTag(Promise.resolve()) != promiseTag) ||\n (Set && getTag(new Set) != setTag) ||\n (WeakMap && getTag(new WeakMap) != weakMapTag)) {\n getTag = function(value) {\n var result = baseGetTag(value),\n Ctor = result == objectTag ? value.constructor : undefined,\n ctorString = Ctor ? toSource(Ctor) : '';\n\n if (ctorString) {\n switch (ctorString) {\n case dataViewCtorString: return dataViewTag;\n case mapCtorString: return mapTag;\n case promiseCtorString: return promiseTag;\n case setCtorString: return setTag;\n case weakMapCtorString: return weakMapTag;\n }\n }\n return result;\n };\n }\n\n /**\n * Gets the view, applying any `transforms` to the `start` and `end` positions.\n *\n * @private\n * @param {number} start The start of the view.\n * @param {number} end The end of the view.\n * @param {Array} transforms The transformations to apply to the view.\n * @returns {Object} Returns an object containing the `start` and `end`\n * positions of the view.\n */\n function getView(start, end, transforms) {\n var index = -1,\n length = transforms.length;\n\n while (++index < length) {\n var data = transforms[index],\n size = data.size;\n\n switch (data.type) {\n case 'drop': start += size; break;\n case 'dropRight': end -= size; break;\n case 'take': end = nativeMin(end, start + size); break;\n case 'takeRight': start = nativeMax(start, end - size); break;\n }\n }\n return { 'start': start, 'end': end };\n }\n\n /**\n * Extracts wrapper details from the `source` body comment.\n *\n * @private\n * @param {string} source The source to inspect.\n * @returns {Array} Returns the wrapper details.\n */\n function getWrapDetails(source) {\n var match = source.match(reWrapDetails);\n return match ? match[1].split(reSplitDetails) : [];\n }\n\n /**\n * Checks if `path` exists on `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @param {Function} hasFunc The function to check properties.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n */\n function hasPath(object, path, hasFunc) {\n path = castPath(path, object);\n\n var index = -1,\n length = path.length,\n result = false;\n\n while (++index < length) {\n var key = toKey(path[index]);\n if (!(result = object != null && hasFunc(object, key))) {\n break;\n }\n object = object[key];\n }\n if (result || ++index != length) {\n return result;\n }\n length = object == null ? 0 : object.length;\n return !!length && isLength(length) && isIndex(key, length) &&\n (isArray(object) || isArguments(object));\n }\n\n /**\n * Initializes an array clone.\n *\n * @private\n * @param {Array} array The array to clone.\n * @returns {Array} Returns the initialized clone.\n */\n function initCloneArray(array) {\n var length = array.length,\n result = new array.constructor(length);\n\n // Add properties assigned by `RegExp#exec`.\n if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {\n result.index = array.index;\n result.input = array.input;\n }\n return result;\n }\n\n /**\n * Initializes an object clone.\n *\n * @private\n * @param {Object} object The object to clone.\n * @returns {Object} Returns the initialized clone.\n */\n function initCloneObject(object) {\n return (typeof object.constructor == 'function' && !isPrototype(object))\n ? baseCreate(getPrototype(object))\n : {};\n }\n\n /**\n * Initializes an object clone based on its `toStringTag`.\n *\n * **Note:** This function only supports cloning values with tags of\n * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.\n *\n * @private\n * @param {Object} object The object to clone.\n * @param {string} tag The `toStringTag` of the object to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the initialized clone.\n */\n function initCloneByTag(object, tag, isDeep) {\n var Ctor = object.constructor;\n switch (tag) {\n case arrayBufferTag:\n return cloneArrayBuffer(object);\n\n case boolTag:\n case dateTag:\n return new Ctor(+object);\n\n case dataViewTag:\n return cloneDataView(object, isDeep);\n\n case float32Tag: case float64Tag:\n case int8Tag: case int16Tag: case int32Tag:\n case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:\n return cloneTypedArray(object, isDeep);\n\n case mapTag:\n return new Ctor;\n\n case numberTag:\n case stringTag:\n return new Ctor(object);\n\n case regexpTag:\n return cloneRegExp(object);\n\n case setTag:\n return new Ctor;\n\n case symbolTag:\n return cloneSymbol(object);\n }\n }\n\n /**\n * Inserts wrapper `details` in a comment at the top of the `source` body.\n *\n * @private\n * @param {string} source The source to modify.\n * @returns {Array} details The details to insert.\n * @returns {string} Returns the modified source.\n */\n function insertWrapDetails(source, details) {\n var length = details.length;\n if (!length) {\n return source;\n }\n var lastIndex = length - 1;\n details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex];\n details = details.join(length > 2 ? ', ' : ' ');\n return source.replace(reWrapComment, '{\\n/* [wrapped with ' + details + '] */\\n');\n }\n\n /**\n * Checks if `value` is a flattenable `arguments` object or array.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.\n */\n function isFlattenable(value) {\n return isArray(value) || isArguments(value) ||\n !!(spreadableSymbol && value && value[spreadableSymbol]);\n }\n\n /**\n * Checks if `value` is a valid array-like index.\n *\n * @private\n * @param {*} value The value to check.\n * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n */\n function isIndex(value, length) {\n var type = typeof value;\n length = length == null ? MAX_SAFE_INTEGER : length;\n\n return !!length &&\n (type == 'number' ||\n (type != 'symbol' && reIsUint.test(value))) &&\n (value > -1 && value % 1 == 0 && value < length);\n }\n\n /**\n * Checks if the given arguments are from an iteratee call.\n *\n * @private\n * @param {*} value The potential iteratee value argument.\n * @param {*} index The potential iteratee index or key argument.\n * @param {*} object The potential iteratee object argument.\n * @returns {boolean} Returns `true` if the arguments are from an iteratee call,\n * else `false`.\n */\n function isIterateeCall(value, index, object) {\n if (!isObject(object)) {\n return false;\n }\n var type = typeof index;\n if (type == 'number'\n ? (isArrayLike(object) && isIndex(index, object.length))\n : (type == 'string' && index in object)\n ) {\n return eq(object[index], value);\n }\n return false;\n }\n\n /**\n * Checks if `value` is a property name and not a property path.\n *\n * @private\n * @param {*} value The value to check.\n * @param {Object} [object] The object to query keys on.\n * @returns {boolean} Returns `true` if `value` is a property name, else `false`.\n */\n function isKey(value, object) {\n if (isArray(value)) {\n return false;\n }\n var type = typeof value;\n if (type == 'number' || type == 'symbol' || type == 'boolean' ||\n value == null || isSymbol(value)) {\n return true;\n }\n return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||\n (object != null && value in Object(object));\n }\n\n /**\n * Checks if `value` is suitable for use as unique object key.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is suitable, else `false`.\n */\n function isKeyable(value) {\n var type = typeof value;\n return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')\n ? (value !== '__proto__')\n : (value === null);\n }\n\n /**\n * Checks if `func` has a lazy counterpart.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` has a lazy counterpart,\n * else `false`.\n */\n function isLaziable(func) {\n var funcName = getFuncName(func),\n other = lodash[funcName];\n\n if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) {\n return false;\n }\n if (func === other) {\n return true;\n }\n var data = getData(other);\n return !!data && func === data[0];\n }\n\n /**\n * Checks if `func` has its source masked.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` is masked, else `false`.\n */\n function isMasked(func) {\n return !!maskSrcKey && (maskSrcKey in func);\n }\n\n /**\n * Checks if `func` is capable of being masked.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `func` is maskable, else `false`.\n */\n var isMaskable = coreJsData ? isFunction : stubFalse;\n\n /**\n * Checks if `value` is likely a prototype object.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.\n */\n function isPrototype(value) {\n var Ctor = value && value.constructor,\n proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;\n\n return value === proto;\n }\n\n /**\n * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` if suitable for strict\n * equality comparisons, else `false`.\n */\n function isStrictComparable(value) {\n return value === value && !isObject(value);\n }\n\n /**\n * A specialized version of `matchesProperty` for source values suitable\n * for strict equality comparisons, i.e. `===`.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @param {*} srcValue The value to match.\n * @returns {Function} Returns the new spec function.\n */\n function matchesStrictComparable(key, srcValue) {\n return function(object) {\n if (object == null) {\n return false;\n }\n return object[key] === srcValue &&\n (srcValue !== undefined || (key in Object(object)));\n };\n }\n\n /**\n * A specialized version of `_.memoize` which clears the memoized function's\n * cache when it exceeds `MAX_MEMOIZE_SIZE`.\n *\n * @private\n * @param {Function} func The function to have its output memoized.\n * @returns {Function} Returns the new memoized function.\n */\n function memoizeCapped(func) {\n var result = memoize(func, function(key) {\n if (cache.size === MAX_MEMOIZE_SIZE) {\n cache.clear();\n }\n return key;\n });\n\n var cache = result.cache;\n return result;\n }\n\n /**\n * Merges the function metadata of `source` into `data`.\n *\n * Merging metadata reduces the number of wrappers used to invoke a function.\n * This is possible because methods like `_.bind`, `_.curry`, and `_.partial`\n * may be applied regardless of execution order. Methods like `_.ary` and\n * `_.rearg` modify function arguments, making the order in which they are\n * executed important, preventing the merging of metadata. However, we make\n * an exception for a safe combined case where curried functions have `_.ary`\n * and or `_.rearg` applied.\n *\n * @private\n * @param {Array} data The destination metadata.\n * @param {Array} source The source metadata.\n * @returns {Array} Returns `data`.\n */\n function mergeData(data, source) {\n var bitmask = data[1],\n srcBitmask = source[1],\n newBitmask = bitmask | srcBitmask,\n isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG);\n\n var isCombo =\n ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) ||\n ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) ||\n ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG));\n\n // Exit early if metadata can't be merged.\n if (!(isCommon || isCombo)) {\n return data;\n }\n // Use source `thisArg` if available.\n if (srcBitmask & WRAP_BIND_FLAG) {\n data[2] = source[2];\n // Set when currying a bound function.\n newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG;\n }\n // Compose partial arguments.\n var value = source[3];\n if (value) {\n var partials = data[3];\n data[3] = partials ? composeArgs(partials, value, source[4]) : value;\n data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4];\n }\n // Compose partial right arguments.\n value = source[5];\n if (value) {\n partials = data[5];\n data[5] = partials ? composeArgsRight(partials, value, source[6]) : value;\n data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6];\n }\n // Use source `argPos` if available.\n value = source[7];\n if (value) {\n data[7] = value;\n }\n // Use source `ary` if it's smaller.\n if (srcBitmask & WRAP_ARY_FLAG) {\n data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);\n }\n // Use source `arity` if one is not provided.\n if (data[9] == null) {\n data[9] = source[9];\n }\n // Use source `func` and merge bitmasks.\n data[0] = source[0];\n data[1] = newBitmask;\n\n return data;\n }\n\n /**\n * This function is like\n * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * except that it includes inherited enumerable properties.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\n function nativeKeysIn(object) {\n var result = [];\n if (object != null) {\n for (var key in Object(object)) {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * Converts `value` to a string using `Object.prototype.toString`.\n *\n * @private\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n */\n function objectToString(value) {\n return nativeObjectToString.call(value);\n }\n\n /**\n * A specialized version of `baseRest` which transforms the rest array.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @param {Function} transform The rest array transform.\n * @returns {Function} Returns the new function.\n */\n function overRest(func, start, transform) {\n start = nativeMax(start === undefined ? (func.length - 1) : start, 0);\n return function() {\n var args = arguments,\n index = -1,\n length = nativeMax(args.length - start, 0),\n array = Array(length);\n\n while (++index < length) {\n array[index] = args[start + index];\n }\n index = -1;\n var otherArgs = Array(start + 1);\n while (++index < start) {\n otherArgs[index] = args[index];\n }\n otherArgs[start] = transform(array);\n return apply(func, this, otherArgs);\n };\n }\n\n /**\n * Gets the parent value at `path` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} path The path to get the parent value of.\n * @returns {*} Returns the parent value.\n */\n function parent(object, path) {\n return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1));\n }\n\n /**\n * Reorder `array` according to the specified indexes where the element at\n * the first index is assigned as the first element, the element at\n * the second index is assigned as the second element, and so on.\n *\n * @private\n * @param {Array} array The array to reorder.\n * @param {Array} indexes The arranged array indexes.\n * @returns {Array} Returns `array`.\n */\n function reorder(array, indexes) {\n var arrLength = array.length,\n length = nativeMin(indexes.length, arrLength),\n oldArray = copyArray(array);\n\n while (length--) {\n var index = indexes[length];\n array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;\n }\n return array;\n }\n\n /**\n * Gets the value at `key`, unless `key` is \"__proto__\" or \"constructor\".\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\n function safeGet(object, key) {\n if (key === 'constructor' && typeof object[key] === 'function') {\n return;\n }\n\n if (key == '__proto__') {\n return;\n }\n\n return object[key];\n }\n\n /**\n * Sets metadata for `func`.\n *\n * **Note:** If this function becomes hot, i.e. is invoked a lot in a short\n * period of time, it will trip its breaker and transition to an identity\n * function to avoid garbage collection pauses in V8. See\n * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070)\n * for more details.\n *\n * @private\n * @param {Function} func The function to associate metadata with.\n * @param {*} data The metadata.\n * @returns {Function} Returns `func`.\n */\n var setData = shortOut(baseSetData);\n\n /**\n * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout).\n *\n * @private\n * @param {Function} func The function to delay.\n * @param {number} wait The number of milliseconds to delay invocation.\n * @returns {number|Object} Returns the timer id or timeout object.\n */\n var setTimeout = ctxSetTimeout || function(func, wait) {\n return root.setTimeout(func, wait);\n };\n\n /**\n * Sets the `toString` method of `func` to return `string`.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\n var setToString = shortOut(baseSetToString);\n\n /**\n * Sets the `toString` method of `wrapper` to mimic the source of `reference`\n * with wrapper details in a comment at the top of the source body.\n *\n * @private\n * @param {Function} wrapper The function to modify.\n * @param {Function} reference The reference function.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @returns {Function} Returns `wrapper`.\n */\n function setWrapToString(wrapper, reference, bitmask) {\n var source = (reference + '');\n return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask)));\n }\n\n /**\n * Creates a function that'll short out and invoke `identity` instead\n * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`\n * milliseconds.\n *\n * @private\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new shortable function.\n */\n function shortOut(func) {\n var count = 0,\n lastCalled = 0;\n\n return function() {\n var stamp = nativeNow(),\n remaining = HOT_SPAN - (stamp - lastCalled);\n\n lastCalled = stamp;\n if (remaining > 0) {\n if (++count >= HOT_COUNT) {\n return arguments[0];\n }\n } else {\n count = 0;\n }\n return func.apply(undefined, arguments);\n };\n }\n\n /**\n * A specialized version of `_.shuffle` which mutates and sets the size of `array`.\n *\n * @private\n * @param {Array} array The array to shuffle.\n * @param {number} [size=array.length] The size of `array`.\n * @returns {Array} Returns `array`.\n */\n function shuffleSelf(array, size) {\n var index = -1,\n length = array.length,\n lastIndex = length - 1;\n\n size = size === undefined ? length : size;\n while (++index < size) {\n var rand = baseRandom(index, lastIndex),\n value = array[rand];\n\n array[rand] = array[index];\n array[index] = value;\n }\n array.length = size;\n return array;\n }\n\n /**\n * Converts `string` to a property path array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the property path array.\n */\n var stringToPath = memoizeCapped(function(string) {\n var result = [];\n if (string.charCodeAt(0) === 46 /* . */) {\n result.push('');\n }\n string.replace(rePropName, function(match, number, quote, subString) {\n result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match));\n });\n return result;\n });\n\n /**\n * Converts `value` to a string key if it's not a string or symbol.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {string|symbol} Returns the key.\n */\n function toKey(value) {\n if (typeof value == 'string' || isSymbol(value)) {\n return value;\n }\n var result = (value + '');\n return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n }\n\n /**\n * Converts `func` to its source code.\n *\n * @private\n * @param {Function} func The function to convert.\n * @returns {string} Returns the source code.\n */\n function toSource(func) {\n if (func != null) {\n try {\n return funcToString.call(func);\n } catch (e) {}\n try {\n return (func + '');\n } catch (e) {}\n }\n return '';\n }\n\n /**\n * Updates wrapper `details` based on `bitmask` flags.\n *\n * @private\n * @returns {Array} details The details to modify.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @returns {Array} Returns `details`.\n */\n function updateWrapDetails(details, bitmask) {\n arrayEach(wrapFlags, function(pair) {\n var value = '_.' + pair[0];\n if ((bitmask & pair[1]) && !arrayIncludes(details, value)) {\n details.push(value);\n }\n });\n return details.sort();\n }\n\n /**\n * Creates a clone of `wrapper`.\n *\n * @private\n * @param {Object} wrapper The wrapper to clone.\n * @returns {Object} Returns the cloned wrapper.\n */\n function wrapperClone(wrapper) {\n if (wrapper instanceof LazyWrapper) {\n return wrapper.clone();\n }\n var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__);\n result.__actions__ = copyArray(wrapper.__actions__);\n result.__index__ = wrapper.__index__;\n result.__values__ = wrapper.__values__;\n return result;\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an array of elements split into groups the length of `size`.\n * If `array` can't be split evenly, the final chunk will be the remaining\n * elements.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to process.\n * @param {number} [size=1] The length of each chunk\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the new array of chunks.\n * @example\n *\n * _.chunk(['a', 'b', 'c', 'd'], 2);\n * // => [['a', 'b'], ['c', 'd']]\n *\n * _.chunk(['a', 'b', 'c', 'd'], 3);\n * // => [['a', 'b', 'c'], ['d']]\n */\n function chunk(array, size, guard) {\n if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) {\n size = 1;\n } else {\n size = nativeMax(toInteger(size), 0);\n }\n var length = array == null ? 0 : array.length;\n if (!length || size < 1) {\n return [];\n }\n var index = 0,\n resIndex = 0,\n result = Array(nativeCeil(length / size));\n\n while (index < length) {\n result[resIndex++] = baseSlice(array, index, (index += size));\n }\n return result;\n }\n\n /**\n * Creates an array with all falsey values removed. The values `false`, `null`,\n * `0`, `\"\"`, `undefined`, and `NaN` are falsey.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to compact.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * _.compact([0, 1, false, 2, '', 3]);\n * // => [1, 2, 3]\n */\n function compact(array) {\n var index = -1,\n length = array == null ? 0 : array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (value) {\n result[resIndex++] = value;\n }\n }\n return result;\n }\n\n /**\n * Creates a new array concatenating `array` with any additional arrays\n * and/or values.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to concatenate.\n * @param {...*} [values] The values to concatenate.\n * @returns {Array} Returns the new concatenated array.\n * @example\n *\n * var array = [1];\n * var other = _.concat(array, 2, [3], [[4]]);\n *\n * console.log(other);\n * // => [1, 2, 3, [4]]\n *\n * console.log(array);\n * // => [1]\n */\n function concat() {\n var length = arguments.length;\n if (!length) {\n return [];\n }\n var args = Array(length - 1),\n array = arguments[0],\n index = length;\n\n while (index--) {\n args[index - 1] = arguments[index];\n }\n return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1));\n }\n\n /**\n * Creates an array of `array` values not included in the other given arrays\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons. The order and references of result values are\n * determined by the first array.\n *\n * **Note:** Unlike `_.pullAll`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...Array} [values] The values to exclude.\n * @returns {Array} Returns the new array of filtered values.\n * @see _.without, _.xor\n * @example\n *\n * _.difference([2, 1], [2, 3]);\n * // => [1]\n */\n var difference = baseRest(function(array, values) {\n return isArrayLikeObject(array)\n ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true))\n : [];\n });\n\n /**\n * This method is like `_.difference` except that it accepts `iteratee` which\n * is invoked for each element of `array` and `values` to generate the criterion\n * by which they're compared. The order and references of result values are\n * determined by the first array. The iteratee is invoked with one argument:\n * (value).\n *\n * **Note:** Unlike `_.pullAllBy`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...Array} [values] The values to exclude.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n * // => [1.2]\n *\n * // The `_.property` iteratee shorthand.\n * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');\n * // => [{ 'x': 2 }]\n */\n var differenceBy = baseRest(function(array, values) {\n var iteratee = last(values);\n if (isArrayLikeObject(iteratee)) {\n iteratee = undefined;\n }\n return isArrayLikeObject(array)\n ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2))\n : [];\n });\n\n /**\n * This method is like `_.difference` except that it accepts `comparator`\n * which is invoked to compare elements of `array` to `values`. The order and\n * references of result values are determined by the first array. The comparator\n * is invoked with two arguments: (arrVal, othVal).\n *\n * **Note:** Unlike `_.pullAllWith`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...Array} [values] The values to exclude.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n *\n * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);\n * // => [{ 'x': 2, 'y': 1 }]\n */\n var differenceWith = baseRest(function(array, values) {\n var comparator = last(values);\n if (isArrayLikeObject(comparator)) {\n comparator = undefined;\n }\n return isArrayLikeObject(array)\n ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator)\n : [];\n });\n\n /**\n * Creates a slice of `array` with `n` elements dropped from the beginning.\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to drop.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.drop([1, 2, 3]);\n * // => [2, 3]\n *\n * _.drop([1, 2, 3], 2);\n * // => [3]\n *\n * _.drop([1, 2, 3], 5);\n * // => []\n *\n * _.drop([1, 2, 3], 0);\n * // => [1, 2, 3]\n */\n function drop(array, n, guard) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n return baseSlice(array, n < 0 ? 0 : n, length);\n }\n\n /**\n * Creates a slice of `array` with `n` elements dropped from the end.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to drop.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.dropRight([1, 2, 3]);\n * // => [1, 2]\n *\n * _.dropRight([1, 2, 3], 2);\n * // => [1]\n *\n * _.dropRight([1, 2, 3], 5);\n * // => []\n *\n * _.dropRight([1, 2, 3], 0);\n * // => [1, 2, 3]\n */\n function dropRight(array, n, guard) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n n = length - n;\n return baseSlice(array, 0, n < 0 ? 0 : n);\n }\n\n /**\n * Creates a slice of `array` excluding elements dropped from the end.\n * Elements are dropped until `predicate` returns falsey. The predicate is\n * invoked with three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': false }\n * ];\n *\n * _.dropRightWhile(users, function(o) { return !o.active; });\n * // => objects for ['barney']\n *\n * // The `_.matches` iteratee shorthand.\n * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false });\n * // => objects for ['barney', 'fred']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.dropRightWhile(users, ['active', false]);\n * // => objects for ['barney']\n *\n * // The `_.property` iteratee shorthand.\n * _.dropRightWhile(users, 'active');\n * // => objects for ['barney', 'fred', 'pebbles']\n */\n function dropRightWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3), true, true)\n : [];\n }\n\n /**\n * Creates a slice of `array` excluding elements dropped from the beginning.\n * Elements are dropped until `predicate` returns falsey. The predicate is\n * invoked with three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': false },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': true }\n * ];\n *\n * _.dropWhile(users, function(o) { return !o.active; });\n * // => objects for ['pebbles']\n *\n * // The `_.matches` iteratee shorthand.\n * _.dropWhile(users, { 'user': 'barney', 'active': false });\n * // => objects for ['fred', 'pebbles']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.dropWhile(users, ['active', false]);\n * // => objects for ['pebbles']\n *\n * // The `_.property` iteratee shorthand.\n * _.dropWhile(users, 'active');\n * // => objects for ['barney', 'fred', 'pebbles']\n */\n function dropWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3), true)\n : [];\n }\n\n /**\n * Fills elements of `array` with `value` from `start` up to, but not\n * including, `end`.\n *\n * **Note:** This method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 3.2.0\n * @category Array\n * @param {Array} array The array to fill.\n * @param {*} value The value to fill `array` with.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [1, 2, 3];\n *\n * _.fill(array, 'a');\n * console.log(array);\n * // => ['a', 'a', 'a']\n *\n * _.fill(Array(3), 2);\n * // => [2, 2, 2]\n *\n * _.fill([4, 6, 8, 10], '*', 1, 3);\n * // => [4, '*', '*', 10]\n */\n function fill(array, value, start, end) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {\n start = 0;\n end = length;\n }\n return baseFill(array, value, start, end);\n }\n\n /**\n * This method is like `_.find` except that it returns the index of the first\n * element `predicate` returns truthy for instead of the element itself.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=0] The index to search from.\n * @returns {number} Returns the index of the found element, else `-1`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': false },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': true }\n * ];\n *\n * _.findIndex(users, function(o) { return o.user == 'barney'; });\n * // => 0\n *\n * // The `_.matches` iteratee shorthand.\n * _.findIndex(users, { 'user': 'fred', 'active': false });\n * // => 1\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findIndex(users, ['active', false]);\n * // => 0\n *\n * // The `_.property` iteratee shorthand.\n * _.findIndex(users, 'active');\n * // => 2\n */\n function findIndex(array, predicate, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = fromIndex == null ? 0 : toInteger(fromIndex);\n if (index < 0) {\n index = nativeMax(length + index, 0);\n }\n return baseFindIndex(array, getIteratee(predicate, 3), index);\n }\n\n /**\n * This method is like `_.findIndex` except that it iterates over elements\n * of `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=array.length-1] The index to search from.\n * @returns {number} Returns the index of the found element, else `-1`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': false }\n * ];\n *\n * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; });\n * // => 2\n *\n * // The `_.matches` iteratee shorthand.\n * _.findLastIndex(users, { 'user': 'barney', 'active': true });\n * // => 0\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findLastIndex(users, ['active', false]);\n * // => 2\n *\n * // The `_.property` iteratee shorthand.\n * _.findLastIndex(users, 'active');\n * // => 0\n */\n function findLastIndex(array, predicate, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = length - 1;\n if (fromIndex !== undefined) {\n index = toInteger(fromIndex);\n index = fromIndex < 0\n ? nativeMax(length + index, 0)\n : nativeMin(index, length - 1);\n }\n return baseFindIndex(array, getIteratee(predicate, 3), index, true);\n }\n\n /**\n * Flattens `array` a single level deep.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to flatten.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * _.flatten([1, [2, [3, [4]], 5]]);\n * // => [1, 2, [3, [4]], 5]\n */\n function flatten(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseFlatten(array, 1) : [];\n }\n\n /**\n * Recursively flattens `array`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to flatten.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * _.flattenDeep([1, [2, [3, [4]], 5]]);\n * // => [1, 2, 3, 4, 5]\n */\n function flattenDeep(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseFlatten(array, INFINITY) : [];\n }\n\n /**\n * Recursively flatten `array` up to `depth` times.\n *\n * @static\n * @memberOf _\n * @since 4.4.0\n * @category Array\n * @param {Array} array The array to flatten.\n * @param {number} [depth=1] The maximum recursion depth.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * var array = [1, [2, [3, [4]], 5]];\n *\n * _.flattenDepth(array, 1);\n * // => [1, 2, [3, [4]], 5]\n *\n * _.flattenDepth(array, 2);\n * // => [1, 2, 3, [4], 5]\n */\n function flattenDepth(array, depth) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n depth = depth === undefined ? 1 : toInteger(depth);\n return baseFlatten(array, depth);\n }\n\n /**\n * The inverse of `_.toPairs`; this method returns an object composed\n * from key-value `pairs`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} pairs The key-value pairs.\n * @returns {Object} Returns the new object.\n * @example\n *\n * _.fromPairs([['a', 1], ['b', 2]]);\n * // => { 'a': 1, 'b': 2 }\n */\n function fromPairs(pairs) {\n var index = -1,\n length = pairs == null ? 0 : pairs.length,\n result = {};\n\n while (++index < length) {\n var pair = pairs[index];\n result[pair[0]] = pair[1];\n }\n return result;\n }\n\n /**\n * Gets the first element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @alias first\n * @category Array\n * @param {Array} array The array to query.\n * @returns {*} Returns the first element of `array`.\n * @example\n *\n * _.head([1, 2, 3]);\n * // => 1\n *\n * _.head([]);\n * // => undefined\n */\n function head(array) {\n return (array && array.length) ? array[0] : undefined;\n }\n\n /**\n * Gets the index at which the first occurrence of `value` is found in `array`\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons. If `fromIndex` is negative, it's used as the\n * offset from the end of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} [fromIndex=0] The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.indexOf([1, 2, 1, 2], 2);\n * // => 1\n *\n * // Search from the `fromIndex`.\n * _.indexOf([1, 2, 1, 2], 2, 2);\n * // => 3\n */\n function indexOf(array, value, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = fromIndex == null ? 0 : toInteger(fromIndex);\n if (index < 0) {\n index = nativeMax(length + index, 0);\n }\n return baseIndexOf(array, value, index);\n }\n\n /**\n * Gets all but the last element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.initial([1, 2, 3]);\n * // => [1, 2]\n */\n function initial(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseSlice(array, 0, -1) : [];\n }\n\n /**\n * Creates an array of unique values that are included in all given arrays\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons. The order and references of result values are\n * determined by the first array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @returns {Array} Returns the new array of intersecting values.\n * @example\n *\n * _.intersection([2, 1], [2, 3]);\n * // => [2]\n */\n var intersection = baseRest(function(arrays) {\n var mapped = arrayMap(arrays, castArrayLikeObject);\n return (mapped.length && mapped[0] === arrays[0])\n ? baseIntersection(mapped)\n : [];\n });\n\n /**\n * This method is like `_.intersection` except that it accepts `iteratee`\n * which is invoked for each element of each `arrays` to generate the criterion\n * by which they're compared. The order and references of result values are\n * determined by the first array. The iteratee is invoked with one argument:\n * (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of intersecting values.\n * @example\n *\n * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n * // => [2.1]\n *\n * // The `_.property` iteratee shorthand.\n * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 1 }]\n */\n var intersectionBy = baseRest(function(arrays) {\n var iteratee = last(arrays),\n mapped = arrayMap(arrays, castArrayLikeObject);\n\n if (iteratee === last(mapped)) {\n iteratee = undefined;\n } else {\n mapped.pop();\n }\n return (mapped.length && mapped[0] === arrays[0])\n ? baseIntersection(mapped, getIteratee(iteratee, 2))\n : [];\n });\n\n /**\n * This method is like `_.intersection` except that it accepts `comparator`\n * which is invoked to compare elements of `arrays`. The order and references\n * of result values are determined by the first array. The comparator is\n * invoked with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of intersecting values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.intersectionWith(objects, others, _.isEqual);\n * // => [{ 'x': 1, 'y': 2 }]\n */\n var intersectionWith = baseRest(function(arrays) {\n var comparator = last(arrays),\n mapped = arrayMap(arrays, castArrayLikeObject);\n\n comparator = typeof comparator == 'function' ? comparator : undefined;\n if (comparator) {\n mapped.pop();\n }\n return (mapped.length && mapped[0] === arrays[0])\n ? baseIntersection(mapped, undefined, comparator)\n : [];\n });\n\n /**\n * Converts all elements in `array` into a string separated by `separator`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to convert.\n * @param {string} [separator=','] The element separator.\n * @returns {string} Returns the joined string.\n * @example\n *\n * _.join(['a', 'b', 'c'], '~');\n * // => 'a~b~c'\n */\n function join(array, separator) {\n return array == null ? '' : nativeJoin.call(array, separator);\n }\n\n /**\n * Gets the last element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {*} Returns the last element of `array`.\n * @example\n *\n * _.last([1, 2, 3]);\n * // => 3\n */\n function last(array) {\n var length = array == null ? 0 : array.length;\n return length ? array[length - 1] : undefined;\n }\n\n /**\n * This method is like `_.indexOf` except that it iterates over elements of\n * `array` from right to left.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} [fromIndex=array.length-1] The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.lastIndexOf([1, 2, 1, 2], 2);\n * // => 3\n *\n * // Search from the `fromIndex`.\n * _.lastIndexOf([1, 2, 1, 2], 2, 2);\n * // => 1\n */\n function lastIndexOf(array, value, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = length;\n if (fromIndex !== undefined) {\n index = toInteger(fromIndex);\n index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1);\n }\n return value === value\n ? strictLastIndexOf(array, value, index)\n : baseFindIndex(array, baseIsNaN, index, true);\n }\n\n /**\n * Gets the element at index `n` of `array`. If `n` is negative, the nth\n * element from the end is returned.\n *\n * @static\n * @memberOf _\n * @since 4.11.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=0] The index of the element to return.\n * @returns {*} Returns the nth element of `array`.\n * @example\n *\n * var array = ['a', 'b', 'c', 'd'];\n *\n * _.nth(array, 1);\n * // => 'b'\n *\n * _.nth(array, -2);\n * // => 'c';\n */\n function nth(array, n) {\n return (array && array.length) ? baseNth(array, toInteger(n)) : undefined;\n }\n\n /**\n * Removes all given values from `array` using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`\n * to remove elements from an array by predicate.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {...*} [values] The values to remove.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = ['a', 'b', 'c', 'a', 'b', 'c'];\n *\n * _.pull(array, 'a', 'c');\n * console.log(array);\n * // => ['b', 'b']\n */\n var pull = baseRest(pullAll);\n\n /**\n * This method is like `_.pull` except that it accepts an array of values to remove.\n *\n * **Note:** Unlike `_.difference`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = ['a', 'b', 'c', 'a', 'b', 'c'];\n *\n * _.pullAll(array, ['a', 'c']);\n * console.log(array);\n * // => ['b', 'b']\n */\n function pullAll(array, values) {\n return (array && array.length && values && values.length)\n ? basePullAll(array, values)\n : array;\n }\n\n /**\n * This method is like `_.pullAll` except that it accepts `iteratee` which is\n * invoked for each element of `array` and `values` to generate the criterion\n * by which they're compared. The iteratee is invoked with one argument: (value).\n *\n * **Note:** Unlike `_.differenceBy`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }];\n *\n * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x');\n * console.log(array);\n * // => [{ 'x': 2 }]\n */\n function pullAllBy(array, values, iteratee) {\n return (array && array.length && values && values.length)\n ? basePullAll(array, values, getIteratee(iteratee, 2))\n : array;\n }\n\n /**\n * This method is like `_.pullAll` except that it accepts `comparator` which\n * is invoked to compare elements of `array` to `values`. The comparator is\n * invoked with two arguments: (arrVal, othVal).\n *\n * **Note:** Unlike `_.differenceWith`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }];\n *\n * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual);\n * console.log(array);\n * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }]\n */\n function pullAllWith(array, values, comparator) {\n return (array && array.length && values && values.length)\n ? basePullAll(array, values, undefined, comparator)\n : array;\n }\n\n /**\n * Removes elements from `array` corresponding to `indexes` and returns an\n * array of removed elements.\n *\n * **Note:** Unlike `_.at`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {...(number|number[])} [indexes] The indexes of elements to remove.\n * @returns {Array} Returns the new array of removed elements.\n * @example\n *\n * var array = ['a', 'b', 'c', 'd'];\n * var pulled = _.pullAt(array, [1, 3]);\n *\n * console.log(array);\n * // => ['a', 'c']\n *\n * console.log(pulled);\n * // => ['b', 'd']\n */\n var pullAt = flatRest(function(array, indexes) {\n var length = array == null ? 0 : array.length,\n result = baseAt(array, indexes);\n\n basePullAt(array, arrayMap(indexes, function(index) {\n return isIndex(index, length) ? +index : index;\n }).sort(compareAscending));\n\n return result;\n });\n\n /**\n * Removes all elements from `array` that `predicate` returns truthy for\n * and returns an array of the removed elements. The predicate is invoked\n * with three arguments: (value, index, array).\n *\n * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull`\n * to pull elements from an array by value.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new array of removed elements.\n * @example\n *\n * var array = [1, 2, 3, 4];\n * var evens = _.remove(array, function(n) {\n * return n % 2 == 0;\n * });\n *\n * console.log(array);\n * // => [1, 3]\n *\n * console.log(evens);\n * // => [2, 4]\n */\n function remove(array, predicate) {\n var result = [];\n if (!(array && array.length)) {\n return result;\n }\n var index = -1,\n indexes = [],\n length = array.length;\n\n predicate = getIteratee(predicate, 3);\n while (++index < length) {\n var value = array[index];\n if (predicate(value, index, array)) {\n result.push(value);\n indexes.push(index);\n }\n }\n basePullAt(array, indexes);\n return result;\n }\n\n /**\n * Reverses `array` so that the first element becomes the last, the second\n * element becomes the second to last, and so on.\n *\n * **Note:** This method mutates `array` and is based on\n * [`Array#reverse`](https://mdn.io/Array/reverse).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [1, 2, 3];\n *\n * _.reverse(array);\n * // => [3, 2, 1]\n *\n * console.log(array);\n * // => [3, 2, 1]\n */\n function reverse(array) {\n return array == null ? array : nativeReverse.call(array);\n }\n\n /**\n * Creates a slice of `array` from `start` up to, but not including, `end`.\n *\n * **Note:** This method is used instead of\n * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are\n * returned.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to slice.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the slice of `array`.\n */\n function slice(array, start, end) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {\n start = 0;\n end = length;\n }\n else {\n start = start == null ? 0 : toInteger(start);\n end = end === undefined ? length : toInteger(end);\n }\n return baseSlice(array, start, end);\n }\n\n /**\n * Uses a binary search to determine the lowest index at which `value`\n * should be inserted into `array` in order to maintain its sort order.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * _.sortedIndex([30, 50], 40);\n * // => 1\n */\n function sortedIndex(array, value) {\n return baseSortedIndex(array, value);\n }\n\n /**\n * This method is like `_.sortedIndex` except that it accepts `iteratee`\n * which is invoked for `value` and each element of `array` to compute their\n * sort ranking. The iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * var objects = [{ 'x': 4 }, { 'x': 5 }];\n *\n * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });\n * // => 0\n *\n * // The `_.property` iteratee shorthand.\n * _.sortedIndexBy(objects, { 'x': 4 }, 'x');\n * // => 0\n */\n function sortedIndexBy(array, value, iteratee) {\n return baseSortedIndexBy(array, value, getIteratee(iteratee, 2));\n }\n\n /**\n * This method is like `_.indexOf` except that it performs a binary\n * search on a sorted `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.sortedIndexOf([4, 5, 5, 5, 6], 5);\n * // => 1\n */\n function sortedIndexOf(array, value) {\n var length = array == null ? 0 : array.length;\n if (length) {\n var index = baseSortedIndex(array, value);\n if (index < length && eq(array[index], value)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * This method is like `_.sortedIndex` except that it returns the highest\n * index at which `value` should be inserted into `array` in order to\n * maintain its sort order.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * _.sortedLastIndex([4, 5, 5, 5, 6], 5);\n * // => 4\n */\n function sortedLastIndex(array, value) {\n return baseSortedIndex(array, value, true);\n }\n\n /**\n * This method is like `_.sortedLastIndex` except that it accepts `iteratee`\n * which is invoked for `value` and each element of `array` to compute their\n * sort ranking. The iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * var objects = [{ 'x': 4 }, { 'x': 5 }];\n *\n * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });\n * // => 1\n *\n * // The `_.property` iteratee shorthand.\n * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');\n * // => 1\n */\n function sortedLastIndexBy(array, value, iteratee) {\n return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true);\n }\n\n /**\n * This method is like `_.lastIndexOf` except that it performs a binary\n * search on a sorted `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);\n * // => 3\n */\n function sortedLastIndexOf(array, value) {\n var length = array == null ? 0 : array.length;\n if (length) {\n var index = baseSortedIndex(array, value, true) - 1;\n if (eq(array[index], value)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * This method is like `_.uniq` except that it's designed and optimized\n * for sorted arrays.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.sortedUniq([1, 1, 2]);\n * // => [1, 2]\n */\n function sortedUniq(array) {\n return (array && array.length)\n ? baseSortedUniq(array)\n : [];\n }\n\n /**\n * This method is like `_.uniqBy` except that it's designed and optimized\n * for sorted arrays.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);\n * // => [1.1, 2.3]\n */\n function sortedUniqBy(array, iteratee) {\n return (array && array.length)\n ? baseSortedUniq(array, getIteratee(iteratee, 2))\n : [];\n }\n\n /**\n * Gets all but the first element of `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.tail([1, 2, 3]);\n * // => [2, 3]\n */\n function tail(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseSlice(array, 1, length) : [];\n }\n\n /**\n * Creates a slice of `array` with `n` elements taken from the beginning.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to take.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.take([1, 2, 3]);\n * // => [1]\n *\n * _.take([1, 2, 3], 2);\n * // => [1, 2]\n *\n * _.take([1, 2, 3], 5);\n * // => [1, 2, 3]\n *\n * _.take([1, 2, 3], 0);\n * // => []\n */\n function take(array, n, guard) {\n if (!(array && array.length)) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n return baseSlice(array, 0, n < 0 ? 0 : n);\n }\n\n /**\n * Creates a slice of `array` with `n` elements taken from the end.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to take.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.takeRight([1, 2, 3]);\n * // => [3]\n *\n * _.takeRight([1, 2, 3], 2);\n * // => [2, 3]\n *\n * _.takeRight([1, 2, 3], 5);\n * // => [1, 2, 3]\n *\n * _.takeRight([1, 2, 3], 0);\n * // => []\n */\n function takeRight(array, n, guard) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n n = length - n;\n return baseSlice(array, n < 0 ? 0 : n, length);\n }\n\n /**\n * Creates a slice of `array` with elements taken from the end. Elements are\n * taken until `predicate` returns falsey. The predicate is invoked with\n * three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': false }\n * ];\n *\n * _.takeRightWhile(users, function(o) { return !o.active; });\n * // => objects for ['fred', 'pebbles']\n *\n * // The `_.matches` iteratee shorthand.\n * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false });\n * // => objects for ['pebbles']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.takeRightWhile(users, ['active', false]);\n * // => objects for ['fred', 'pebbles']\n *\n * // The `_.property` iteratee shorthand.\n * _.takeRightWhile(users, 'active');\n * // => []\n */\n function takeRightWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3), false, true)\n : [];\n }\n\n /**\n * Creates a slice of `array` with elements taken from the beginning. Elements\n * are taken until `predicate` returns falsey. The predicate is invoked with\n * three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': false },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': true }\n * ];\n *\n * _.takeWhile(users, function(o) { return !o.active; });\n * // => objects for ['barney', 'fred']\n *\n * // The `_.matches` iteratee shorthand.\n * _.takeWhile(users, { 'user': 'barney', 'active': false });\n * // => objects for ['barney']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.takeWhile(users, ['active', false]);\n * // => objects for ['barney', 'fred']\n *\n * // The `_.property` iteratee shorthand.\n * _.takeWhile(users, 'active');\n * // => []\n */\n function takeWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3))\n : [];\n }\n\n /**\n * Creates an array of unique values, in order, from all given arrays using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @returns {Array} Returns the new array of combined values.\n * @example\n *\n * _.union([2], [1, 2]);\n * // => [2, 1]\n */\n var union = baseRest(function(arrays) {\n return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true));\n });\n\n /**\n * This method is like `_.union` except that it accepts `iteratee` which is\n * invoked for each element of each `arrays` to generate the criterion by\n * which uniqueness is computed. Result values are chosen from the first\n * array in which the value occurs. The iteratee is invoked with one argument:\n * (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of combined values.\n * @example\n *\n * _.unionBy([2.1], [1.2, 2.3], Math.floor);\n * // => [2.1, 1.2]\n *\n * // The `_.property` iteratee shorthand.\n * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 1 }, { 'x': 2 }]\n */\n var unionBy = baseRest(function(arrays) {\n var iteratee = last(arrays);\n if (isArrayLikeObject(iteratee)) {\n iteratee = undefined;\n }\n return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2));\n });\n\n /**\n * This method is like `_.union` except that it accepts `comparator` which\n * is invoked to compare elements of `arrays`. Result values are chosen from\n * the first array in which the value occurs. The comparator is invoked\n * with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of combined values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.unionWith(objects, others, _.isEqual);\n * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]\n */\n var unionWith = baseRest(function(arrays) {\n var comparator = last(arrays);\n comparator = typeof comparator == 'function' ? comparator : undefined;\n return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator);\n });\n\n /**\n * Creates a duplicate-free version of an array, using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons, in which only the first occurrence of each element\n * is kept. The order of result values is determined by the order they occur\n * in the array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.uniq([2, 1, 2]);\n * // => [2, 1]\n */\n function uniq(array) {\n return (array && array.length) ? baseUniq(array) : [];\n }\n\n /**\n * This method is like `_.uniq` except that it accepts `iteratee` which is\n * invoked for each element in `array` to generate the criterion by which\n * uniqueness is computed. The order of result values is determined by the\n * order they occur in the array. The iteratee is invoked with one argument:\n * (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.uniqBy([2.1, 1.2, 2.3], Math.floor);\n * // => [2.1, 1.2]\n *\n * // The `_.property` iteratee shorthand.\n * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 1 }, { 'x': 2 }]\n */\n function uniqBy(array, iteratee) {\n return (array && array.length) ? baseUniq(array, getIteratee(iteratee, 2)) : [];\n }\n\n /**\n * This method is like `_.uniq` except that it accepts `comparator` which\n * is invoked to compare elements of `array`. The order of result values is\n * determined by the order they occur in the array.The comparator is invoked\n * with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.uniqWith(objects, _.isEqual);\n * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]\n */\n function uniqWith(array, comparator) {\n comparator = typeof comparator == 'function' ? comparator : undefined;\n return (array && array.length) ? baseUniq(array, undefined, comparator) : [];\n }\n\n /**\n * This method is like `_.zip` except that it accepts an array of grouped\n * elements and creates an array regrouping the elements to their pre-zip\n * configuration.\n *\n * @static\n * @memberOf _\n * @since 1.2.0\n * @category Array\n * @param {Array} array The array of grouped elements to process.\n * @returns {Array} Returns the new array of regrouped elements.\n * @example\n *\n * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]);\n * // => [['a', 1, true], ['b', 2, false]]\n *\n * _.unzip(zipped);\n * // => [['a', 'b'], [1, 2], [true, false]]\n */\n function unzip(array) {\n if (!(array && array.length)) {\n return [];\n }\n var length = 0;\n array = arrayFilter(array, function(group) {\n if (isArrayLikeObject(group)) {\n length = nativeMax(group.length, length);\n return true;\n }\n });\n return baseTimes(length, function(index) {\n return arrayMap(array, baseProperty(index));\n });\n }\n\n /**\n * This method is like `_.unzip` except that it accepts `iteratee` to specify\n * how regrouped values should be combined. The iteratee is invoked with the\n * elements of each group: (...group).\n *\n * @static\n * @memberOf _\n * @since 3.8.0\n * @category Array\n * @param {Array} array The array of grouped elements to process.\n * @param {Function} [iteratee=_.identity] The function to combine\n * regrouped values.\n * @returns {Array} Returns the new array of regrouped elements.\n * @example\n *\n * var zipped = _.zip([1, 2], [10, 20], [100, 200]);\n * // => [[1, 10, 100], [2, 20, 200]]\n *\n * _.unzipWith(zipped, _.add);\n * // => [3, 30, 300]\n */\n function unzipWith(array, iteratee) {\n if (!(array && array.length)) {\n return [];\n }\n var result = unzip(array);\n if (iteratee == null) {\n return result;\n }\n return arrayMap(result, function(group) {\n return apply(iteratee, undefined, group);\n });\n }\n\n /**\n * Creates an array excluding all given values using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * **Note:** Unlike `_.pull`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...*} [values] The values to exclude.\n * @returns {Array} Returns the new array of filtered values.\n * @see _.difference, _.xor\n * @example\n *\n * _.without([2, 1, 2, 3], 1, 2);\n * // => [3]\n */\n var without = baseRest(function(array, values) {\n return isArrayLikeObject(array)\n ? baseDifference(array, values)\n : [];\n });\n\n /**\n * Creates an array of unique values that is the\n * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)\n * of the given arrays. The order of result values is determined by the order\n * they occur in the arrays.\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @returns {Array} Returns the new array of filtered values.\n * @see _.difference, _.without\n * @example\n *\n * _.xor([2, 1], [2, 3]);\n * // => [1, 3]\n */\n var xor = baseRest(function(arrays) {\n return baseXor(arrayFilter(arrays, isArrayLikeObject));\n });\n\n /**\n * This method is like `_.xor` except that it accepts `iteratee` which is\n * invoked for each element of each `arrays` to generate the criterion by\n * which by which they're compared. The order of result values is determined\n * by the order they occur in the arrays. The iteratee is invoked with one\n * argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n * // => [1.2, 3.4]\n *\n * // The `_.property` iteratee shorthand.\n * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 2 }]\n */\n var xorBy = baseRest(function(arrays) {\n var iteratee = last(arrays);\n if (isArrayLikeObject(iteratee)) {\n iteratee = undefined;\n }\n return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2));\n });\n\n /**\n * This method is like `_.xor` except that it accepts `comparator` which is\n * invoked to compare elements of `arrays`. The order of result values is\n * determined by the order they occur in the arrays. The comparator is invoked\n * with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.xorWith(objects, others, _.isEqual);\n * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]\n */\n var xorWith = baseRest(function(arrays) {\n var comparator = last(arrays);\n comparator = typeof comparator == 'function' ? comparator : undefined;\n return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator);\n });\n\n /**\n * Creates an array of grouped elements, the first of which contains the\n * first elements of the given arrays, the second of which contains the\n * second elements of the given arrays, and so on.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {...Array} [arrays] The arrays to process.\n * @returns {Array} Returns the new array of grouped elements.\n * @example\n *\n * _.zip(['a', 'b'], [1, 2], [true, false]);\n * // => [['a', 1, true], ['b', 2, false]]\n */\n var zip = baseRest(unzip);\n\n /**\n * This method is like `_.fromPairs` except that it accepts two arrays,\n * one of property identifiers and one of corresponding values.\n *\n * @static\n * @memberOf _\n * @since 0.4.0\n * @category Array\n * @param {Array} [props=[]] The property identifiers.\n * @param {Array} [values=[]] The property values.\n * @returns {Object} Returns the new object.\n * @example\n *\n * _.zipObject(['a', 'b'], [1, 2]);\n * // => { 'a': 1, 'b': 2 }\n */\n function zipObject(props, values) {\n return baseZipObject(props || [], values || [], assignValue);\n }\n\n /**\n * This method is like `_.zipObject` except that it supports property paths.\n *\n * @static\n * @memberOf _\n * @since 4.1.0\n * @category Array\n * @param {Array} [props=[]] The property identifiers.\n * @param {Array} [values=[]] The property values.\n * @returns {Object} Returns the new object.\n * @example\n *\n * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]);\n * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } }\n */\n function zipObjectDeep(props, values) {\n return baseZipObject(props || [], values || [], baseSet);\n }\n\n /**\n * This method is like `_.zip` except that it accepts `iteratee` to specify\n * how grouped values should be combined. The iteratee is invoked with the\n * elements of each group: (...group).\n *\n * @static\n * @memberOf _\n * @since 3.8.0\n * @category Array\n * @param {...Array} [arrays] The arrays to process.\n * @param {Function} [iteratee=_.identity] The function to combine\n * grouped values.\n * @returns {Array} Returns the new array of grouped elements.\n * @example\n *\n * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) {\n * return a + b + c;\n * });\n * // => [111, 222]\n */\n var zipWith = baseRest(function(arrays) {\n var length = arrays.length,\n iteratee = length > 1 ? arrays[length - 1] : undefined;\n\n iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined;\n return unzipWith(arrays, iteratee);\n });\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a `lodash` wrapper instance that wraps `value` with explicit method\n * chain sequences enabled. The result of such sequences must be unwrapped\n * with `_#value`.\n *\n * @static\n * @memberOf _\n * @since 1.3.0\n * @category Seq\n * @param {*} value The value to wrap.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36 },\n * { 'user': 'fred', 'age': 40 },\n * { 'user': 'pebbles', 'age': 1 }\n * ];\n *\n * var youngest = _\n * .chain(users)\n * .sortBy('age')\n * .map(function(o) {\n * return o.user + ' is ' + o.age;\n * })\n * .head()\n * .value();\n * // => 'pebbles is 1'\n */\n function chain(value) {\n var result = lodash(value);\n result.__chain__ = true;\n return result;\n }\n\n /**\n * This method invokes `interceptor` and returns `value`. The interceptor\n * is invoked with one argument; (value). The purpose of this method is to\n * \"tap into\" a method chain sequence in order to modify intermediate results.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Seq\n * @param {*} value The value to provide to `interceptor`.\n * @param {Function} interceptor The function to invoke.\n * @returns {*} Returns `value`.\n * @example\n *\n * _([1, 2, 3])\n * .tap(function(array) {\n * // Mutate input array.\n * array.pop();\n * })\n * .reverse()\n * .value();\n * // => [2, 1]\n */\n function tap(value, interceptor) {\n interceptor(value);\n return value;\n }\n\n /**\n * This method is like `_.tap` except that it returns the result of `interceptor`.\n * The purpose of this method is to \"pass thru\" values replacing intermediate\n * results in a method chain sequence.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Seq\n * @param {*} value The value to provide to `interceptor`.\n * @param {Function} interceptor The function to invoke.\n * @returns {*} Returns the result of `interceptor`.\n * @example\n *\n * _(' abc ')\n * .chain()\n * .trim()\n * .thru(function(value) {\n * return [value];\n * })\n * .value();\n * // => ['abc']\n */\n function thru(value, interceptor) {\n return interceptor(value);\n }\n\n /**\n * This method is the wrapper version of `_.at`.\n *\n * @name at\n * @memberOf _\n * @since 1.0.0\n * @category Seq\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n *\n * _(object).at(['a[0].b.c', 'a[1]']).value();\n * // => [3, 4]\n */\n var wrapperAt = flatRest(function(paths) {\n var length = paths.length,\n start = length ? paths[0] : 0,\n value = this.__wrapped__,\n interceptor = function(object) { return baseAt(object, paths); };\n\n if (length > 1 || this.__actions__.length ||\n !(value instanceof LazyWrapper) || !isIndex(start)) {\n return this.thru(interceptor);\n }\n value = value.slice(start, +start + (length ? 1 : 0));\n value.__actions__.push({\n 'func': thru,\n 'args': [interceptor],\n 'thisArg': undefined\n });\n return new LodashWrapper(value, this.__chain__).thru(function(array) {\n if (length && !array.length) {\n array.push(undefined);\n }\n return array;\n });\n });\n\n /**\n * Creates a `lodash` wrapper instance with explicit method chain sequences enabled.\n *\n * @name chain\n * @memberOf _\n * @since 0.1.0\n * @category Seq\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36 },\n * { 'user': 'fred', 'age': 40 }\n * ];\n *\n * // A sequence without explicit chaining.\n * _(users).head();\n * // => { 'user': 'barney', 'age': 36 }\n *\n * // A sequence with explicit chaining.\n * _(users)\n * .chain()\n * .head()\n * .pick('user')\n * .value();\n * // => { 'user': 'barney' }\n */\n function wrapperChain() {\n return chain(this);\n }\n\n /**\n * Executes the chain sequence and returns the wrapped result.\n *\n * @name commit\n * @memberOf _\n * @since 3.2.0\n * @category Seq\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var array = [1, 2];\n * var wrapped = _(array).push(3);\n *\n * console.log(array);\n * // => [1, 2]\n *\n * wrapped = wrapped.commit();\n * console.log(array);\n * // => [1, 2, 3]\n *\n * wrapped.last();\n * // => 3\n *\n * console.log(array);\n * // => [1, 2, 3]\n */\n function wrapperCommit() {\n return new LodashWrapper(this.value(), this.__chain__);\n }\n\n /**\n * Gets the next value on a wrapped object following the\n * [iterator protocol](https://mdn.io/iteration_protocols#iterator).\n *\n * @name next\n * @memberOf _\n * @since 4.0.0\n * @category Seq\n * @returns {Object} Returns the next iterator value.\n * @example\n *\n * var wrapped = _([1, 2]);\n *\n * wrapped.next();\n * // => { 'done': false, 'value': 1 }\n *\n * wrapped.next();\n * // => { 'done': false, 'value': 2 }\n *\n * wrapped.next();\n * // => { 'done': true, 'value': undefined }\n */\n function wrapperNext() {\n if (this.__values__ === undefined) {\n this.__values__ = toArray(this.value());\n }\n var done = this.__index__ >= this.__values__.length,\n value = done ? undefined : this.__values__[this.__index__++];\n\n return { 'done': done, 'value': value };\n }\n\n /**\n * Enables the wrapper to be iterable.\n *\n * @name Symbol.iterator\n * @memberOf _\n * @since 4.0.0\n * @category Seq\n * @returns {Object} Returns the wrapper object.\n * @example\n *\n * var wrapped = _([1, 2]);\n *\n * wrapped[Symbol.iterator]() === wrapped;\n * // => true\n *\n * Array.from(wrapped);\n * // => [1, 2]\n */\n function wrapperToIterator() {\n return this;\n }\n\n /**\n * Creates a clone of the chain sequence planting `value` as the wrapped value.\n *\n * @name plant\n * @memberOf _\n * @since 3.2.0\n * @category Seq\n * @param {*} value The value to plant.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * var wrapped = _([1, 2]).map(square);\n * var other = wrapped.plant([3, 4]);\n *\n * other.value();\n * // => [9, 16]\n *\n * wrapped.value();\n * // => [1, 4]\n */\n function wrapperPlant(value) {\n var result,\n parent = this;\n\n while (parent instanceof baseLodash) {\n var clone = wrapperClone(parent);\n clone.__index__ = 0;\n clone.__values__ = undefined;\n if (result) {\n previous.__wrapped__ = clone;\n } else {\n result = clone;\n }\n var previous = clone;\n parent = parent.__wrapped__;\n }\n previous.__wrapped__ = value;\n return result;\n }\n\n /**\n * This method is the wrapper version of `_.reverse`.\n *\n * **Note:** This method mutates the wrapped array.\n *\n * @name reverse\n * @memberOf _\n * @since 0.1.0\n * @category Seq\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var array = [1, 2, 3];\n *\n * _(array).reverse().value()\n * // => [3, 2, 1]\n *\n * console.log(array);\n * // => [3, 2, 1]\n */\n function wrapperReverse() {\n var value = this.__wrapped__;\n if (value instanceof LazyWrapper) {\n var wrapped = value;\n if (this.__actions__.length) {\n wrapped = new LazyWrapper(this);\n }\n wrapped = wrapped.reverse();\n wrapped.__actions__.push({\n 'func': thru,\n 'args': [reverse],\n 'thisArg': undefined\n });\n return new LodashWrapper(wrapped, this.__chain__);\n }\n return this.thru(reverse);\n }\n\n /**\n * Executes the chain sequence to resolve the unwrapped value.\n *\n * @name value\n * @memberOf _\n * @since 0.1.0\n * @alias toJSON, valueOf\n * @category Seq\n * @returns {*} Returns the resolved unwrapped value.\n * @example\n *\n * _([1, 2, 3]).value();\n * // => [1, 2, 3]\n */\n function wrapperValue() {\n return baseWrapperValue(this.__wrapped__, this.__actions__);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an object composed of keys generated from the results of running\n * each element of `collection` thru `iteratee`. The corresponding value of\n * each key is the number of times the key was returned by `iteratee`. The\n * iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n * @returns {Object} Returns the composed aggregate object.\n * @example\n *\n * _.countBy([6.1, 4.2, 6.3], Math.floor);\n * // => { '4': 1, '6': 2 }\n *\n * // The `_.property` iteratee shorthand.\n * _.countBy(['one', 'two', 'three'], 'length');\n * // => { '3': 2, '5': 1 }\n */\n var countBy = createAggregator(function(result, value, key) {\n if (hasOwnProperty.call(result, key)) {\n ++result[key];\n } else {\n baseAssignValue(result, key, 1);\n }\n });\n\n /**\n * Checks if `predicate` returns truthy for **all** elements of `collection`.\n * Iteration is stopped once `predicate` returns falsey. The predicate is\n * invoked with three arguments: (value, index|key, collection).\n *\n * **Note:** This method returns `true` for\n * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because\n * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of\n * elements of empty collections.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {boolean} Returns `true` if all elements pass the predicate check,\n * else `false`.\n * @example\n *\n * _.every([true, 1, null, 'yes'], Boolean);\n * // => false\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': false },\n * { 'user': 'fred', 'age': 40, 'active': false }\n * ];\n *\n * // The `_.matches` iteratee shorthand.\n * _.every(users, { 'user': 'barney', 'active': false });\n * // => false\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.every(users, ['active', false]);\n * // => true\n *\n * // The `_.property` iteratee shorthand.\n * _.every(users, 'active');\n * // => false\n */\n function every(collection, predicate, guard) {\n var func = isArray(collection) ? arrayEvery : baseEvery;\n if (guard && isIterateeCall(collection, predicate, guard)) {\n predicate = undefined;\n }\n return func(collection, getIteratee(predicate, 3));\n }\n\n /**\n * Iterates over elements of `collection`, returning an array of all elements\n * `predicate` returns truthy for. The predicate is invoked with three\n * arguments: (value, index|key, collection).\n *\n * **Note:** Unlike `_.remove`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n * @see _.reject\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': true },\n * { 'user': 'fred', 'age': 40, 'active': false }\n * ];\n *\n * _.filter(users, function(o) { return !o.active; });\n * // => objects for ['fred']\n *\n * // The `_.matches` iteratee shorthand.\n * _.filter(users, { 'age': 36, 'active': true });\n * // => objects for ['barney']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.filter(users, ['active', false]);\n * // => objects for ['fred']\n *\n * // The `_.property` iteratee shorthand.\n * _.filter(users, 'active');\n * // => objects for ['barney']\n *\n * // Combining several predicates using `_.overEvery` or `_.overSome`.\n * _.filter(users, _.overSome([{ 'age': 36 }, ['age', 40]]));\n * // => objects for ['fred', 'barney']\n */\n function filter(collection, predicate) {\n var func = isArray(collection) ? arrayFilter : baseFilter;\n return func(collection, getIteratee(predicate, 3));\n }\n\n /**\n * Iterates over elements of `collection`, returning the first element\n * `predicate` returns truthy for. The predicate is invoked with three\n * arguments: (value, index|key, collection).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=0] The index to search from.\n * @returns {*} Returns the matched element, else `undefined`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': true },\n * { 'user': 'fred', 'age': 40, 'active': false },\n * { 'user': 'pebbles', 'age': 1, 'active': true }\n * ];\n *\n * _.find(users, function(o) { return o.age < 40; });\n * // => object for 'barney'\n *\n * // The `_.matches` iteratee shorthand.\n * _.find(users, { 'age': 1, 'active': true });\n * // => object for 'pebbles'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.find(users, ['active', false]);\n * // => object for 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.find(users, 'active');\n * // => object for 'barney'\n */\n var find = createFind(findIndex);\n\n /**\n * This method is like `_.find` except that it iterates over elements of\n * `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=collection.length-1] The index to search from.\n * @returns {*} Returns the matched element, else `undefined`.\n * @example\n *\n * _.findLast([1, 2, 3, 4], function(n) {\n * return n % 2 == 1;\n * });\n * // => 3\n */\n var findLast = createFind(findLastIndex);\n\n /**\n * Creates a flattened array of values by running each element in `collection`\n * thru `iteratee` and flattening the mapped results. The iteratee is invoked\n * with three arguments: (value, index|key, collection).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * function duplicate(n) {\n * return [n, n];\n * }\n *\n * _.flatMap([1, 2], duplicate);\n * // => [1, 1, 2, 2]\n */\n function flatMap(collection, iteratee) {\n return baseFlatten(map(collection, iteratee), 1);\n }\n\n /**\n * This method is like `_.flatMap` except that it recursively flattens the\n * mapped results.\n *\n * @static\n * @memberOf _\n * @since 4.7.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * function duplicate(n) {\n * return [[[n, n]]];\n * }\n *\n * _.flatMapDeep([1, 2], duplicate);\n * // => [1, 1, 2, 2]\n */\n function flatMapDeep(collection, iteratee) {\n return baseFlatten(map(collection, iteratee), INFINITY);\n }\n\n /**\n * This method is like `_.flatMap` except that it recursively flattens the\n * mapped results up to `depth` times.\n *\n * @static\n * @memberOf _\n * @since 4.7.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {number} [depth=1] The maximum recursion depth.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * function duplicate(n) {\n * return [[[n, n]]];\n * }\n *\n * _.flatMapDepth([1, 2], duplicate, 2);\n * // => [[1, 1], [2, 2]]\n */\n function flatMapDepth(collection, iteratee, depth) {\n depth = depth === undefined ? 1 : toInteger(depth);\n return baseFlatten(map(collection, iteratee), depth);\n }\n\n /**\n * Iterates over elements of `collection` and invokes `iteratee` for each element.\n * The iteratee is invoked with three arguments: (value, index|key, collection).\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * **Note:** As with other \"Collections\" methods, objects with a \"length\"\n * property are iterated like arrays. To avoid this behavior use `_.forIn`\n * or `_.forOwn` for object iteration.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @alias each\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n * @see _.forEachRight\n * @example\n *\n * _.forEach([1, 2], function(value) {\n * console.log(value);\n * });\n * // => Logs `1` then `2`.\n *\n * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a' then 'b' (iteration order is not guaranteed).\n */\n function forEach(collection, iteratee) {\n var func = isArray(collection) ? arrayEach : baseEach;\n return func(collection, getIteratee(iteratee, 3));\n }\n\n /**\n * This method is like `_.forEach` except that it iterates over elements of\n * `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @alias eachRight\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n * @see _.forEach\n * @example\n *\n * _.forEachRight([1, 2], function(value) {\n * console.log(value);\n * });\n * // => Logs `2` then `1`.\n */\n function forEachRight(collection, iteratee) {\n var func = isArray(collection) ? arrayEachRight : baseEachRight;\n return func(collection, getIteratee(iteratee, 3));\n }\n\n /**\n * Creates an object composed of keys generated from the results of running\n * each element of `collection` thru `iteratee`. The order of grouped values\n * is determined by the order they occur in `collection`. The corresponding\n * value of each key is an array of elements responsible for generating the\n * key. The iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n * @returns {Object} Returns the composed aggregate object.\n * @example\n *\n * _.groupBy([6.1, 4.2, 6.3], Math.floor);\n * // => { '4': [4.2], '6': [6.1, 6.3] }\n *\n * // The `_.property` iteratee shorthand.\n * _.groupBy(['one', 'two', 'three'], 'length');\n * // => { '3': ['one', 'two'], '5': ['three'] }\n */\n var groupBy = createAggregator(function(result, value, key) {\n if (hasOwnProperty.call(result, key)) {\n result[key].push(value);\n } else {\n baseAssignValue(result, key, [value]);\n }\n });\n\n /**\n * Checks if `value` is in `collection`. If `collection` is a string, it's\n * checked for a substring of `value`, otherwise\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * is used for equality comparisons. If `fromIndex` is negative, it's used as\n * the offset from the end of `collection`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object|string} collection The collection to inspect.\n * @param {*} value The value to search for.\n * @param {number} [fromIndex=0] The index to search from.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.\n * @returns {boolean} Returns `true` if `value` is found, else `false`.\n * @example\n *\n * _.includes([1, 2, 3], 1);\n * // => true\n *\n * _.includes([1, 2, 3], 1, 2);\n * // => false\n *\n * _.includes({ 'a': 1, 'b': 2 }, 1);\n * // => true\n *\n * _.includes('abcd', 'bc');\n * // => true\n */\n function includes(collection, value, fromIndex, guard) {\n collection = isArrayLike(collection) ? collection : values(collection);\n fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0;\n\n var length = collection.length;\n if (fromIndex < 0) {\n fromIndex = nativeMax(length + fromIndex, 0);\n }\n return isString(collection)\n ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1)\n : (!!length && baseIndexOf(collection, value, fromIndex) > -1);\n }\n\n /**\n * Invokes the method at `path` of each element in `collection`, returning\n * an array of the results of each invoked method. Any additional arguments\n * are provided to each invoked method. If `path` is a function, it's invoked\n * for, and `this` bound to, each element in `collection`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Array|Function|string} path The path of the method to invoke or\n * the function invoked per iteration.\n * @param {...*} [args] The arguments to invoke each method with.\n * @returns {Array} Returns the array of results.\n * @example\n *\n * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort');\n * // => [[1, 5, 7], [1, 2, 3]]\n *\n * _.invokeMap([123, 456], String.prototype.split, '');\n * // => [['1', '2', '3'], ['4', '5', '6']]\n */\n var invokeMap = baseRest(function(collection, path, args) {\n var index = -1,\n isFunc = typeof path == 'function',\n result = isArrayLike(collection) ? Array(collection.length) : [];\n\n baseEach(collection, function(value) {\n result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args);\n });\n return result;\n });\n\n /**\n * Creates an object composed of keys generated from the results of running\n * each element of `collection` thru `iteratee`. The corresponding value of\n * each key is the last element responsible for generating the key. The\n * iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n * @returns {Object} Returns the composed aggregate object.\n * @example\n *\n * var array = [\n * { 'dir': 'left', 'code': 97 },\n * { 'dir': 'right', 'code': 100 }\n * ];\n *\n * _.keyBy(array, function(o) {\n * return String.fromCharCode(o.code);\n * });\n * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }\n *\n * _.keyBy(array, 'dir');\n * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }\n */\n var keyBy = createAggregator(function(result, value, key) {\n baseAssignValue(result, key, value);\n });\n\n /**\n * Creates an array of values by running each element in `collection` thru\n * `iteratee`. The iteratee is invoked with three arguments:\n * (value, index|key, collection).\n *\n * Many lodash methods are guarded to work as iteratees for methods like\n * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.\n *\n * The guarded methods are:\n * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,\n * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,\n * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,\n * `template`, `trim`, `trimEnd`, `trimStart`, and `words`\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n * @example\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * _.map([4, 8], square);\n * // => [16, 64]\n *\n * _.map({ 'a': 4, 'b': 8 }, square);\n * // => [16, 64] (iteration order is not guaranteed)\n *\n * var users = [\n * { 'user': 'barney' },\n * { 'user': 'fred' }\n * ];\n *\n * // The `_.property` iteratee shorthand.\n * _.map(users, 'user');\n * // => ['barney', 'fred']\n */\n function map(collection, iteratee) {\n var func = isArray(collection) ? arrayMap : baseMap;\n return func(collection, getIteratee(iteratee, 3));\n }\n\n /**\n * This method is like `_.sortBy` except that it allows specifying the sort\n * orders of the iteratees to sort by. If `orders` is unspecified, all values\n * are sorted in ascending order. Otherwise, specify an order of \"desc\" for\n * descending or \"asc\" for ascending sort order of corresponding values.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]]\n * The iteratees to sort by.\n * @param {string[]} [orders] The sort orders of `iteratees`.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.\n * @returns {Array} Returns the new sorted array.\n * @example\n *\n * var users = [\n * { 'user': 'fred', 'age': 48 },\n * { 'user': 'barney', 'age': 34 },\n * { 'user': 'fred', 'age': 40 },\n * { 'user': 'barney', 'age': 36 }\n * ];\n *\n * // Sort by `user` in ascending order and by `age` in descending order.\n * _.orderBy(users, ['user', 'age'], ['asc', 'desc']);\n * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]\n */\n function orderBy(collection, iteratees, orders, guard) {\n if (collection == null) {\n return [];\n }\n if (!isArray(iteratees)) {\n iteratees = iteratees == null ? [] : [iteratees];\n }\n orders = guard ? undefined : orders;\n if (!isArray(orders)) {\n orders = orders == null ? [] : [orders];\n }\n return baseOrderBy(collection, iteratees, orders);\n }\n\n /**\n * Creates an array of elements split into two groups, the first of which\n * contains elements `predicate` returns truthy for, the second of which\n * contains elements `predicate` returns falsey for. The predicate is\n * invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the array of grouped elements.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': false },\n * { 'user': 'fred', 'age': 40, 'active': true },\n * { 'user': 'pebbles', 'age': 1, 'active': false }\n * ];\n *\n * _.partition(users, function(o) { return o.active; });\n * // => objects for [['fred'], ['barney', 'pebbles']]\n *\n * // The `_.matches` iteratee shorthand.\n * _.partition(users, { 'age': 1, 'active': false });\n * // => objects for [['pebbles'], ['barney', 'fred']]\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.partition(users, ['active', false]);\n * // => objects for [['barney', 'pebbles'], ['fred']]\n *\n * // The `_.property` iteratee shorthand.\n * _.partition(users, 'active');\n * // => objects for [['fred'], ['barney', 'pebbles']]\n */\n var partition = createAggregator(function(result, value, key) {\n result[key ? 0 : 1].push(value);\n }, function() { return [[], []]; });\n\n /**\n * Reduces `collection` to a value which is the accumulated result of running\n * each element in `collection` thru `iteratee`, where each successive\n * invocation is supplied the return value of the previous. If `accumulator`\n * is not given, the first element of `collection` is used as the initial\n * value. The iteratee is invoked with four arguments:\n * (accumulator, value, index|key, collection).\n *\n * Many lodash methods are guarded to work as iteratees for methods like\n * `_.reduce`, `_.reduceRight`, and `_.transform`.\n *\n * The guarded methods are:\n * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,\n * and `sortBy`\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @returns {*} Returns the accumulated value.\n * @see _.reduceRight\n * @example\n *\n * _.reduce([1, 2], function(sum, n) {\n * return sum + n;\n * }, 0);\n * // => 3\n *\n * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {\n * (result[value] || (result[value] = [])).push(key);\n * return result;\n * }, {});\n * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)\n */\n function reduce(collection, iteratee, accumulator) {\n var func = isArray(collection) ? arrayReduce : baseReduce,\n initAccum = arguments.length < 3;\n\n return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach);\n }\n\n /**\n * This method is like `_.reduce` except that it iterates over elements of\n * `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @returns {*} Returns the accumulated value.\n * @see _.reduce\n * @example\n *\n * var array = [[0, 1], [2, 3], [4, 5]];\n *\n * _.reduceRight(array, function(flattened, other) {\n * return flattened.concat(other);\n * }, []);\n * // => [4, 5, 2, 3, 0, 1]\n */\n function reduceRight(collection, iteratee, accumulator) {\n var func = isArray(collection) ? arrayReduceRight : baseReduce,\n initAccum = arguments.length < 3;\n\n return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight);\n }\n\n /**\n * The opposite of `_.filter`; this method returns the elements of `collection`\n * that `predicate` does **not** return truthy for.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n * @see _.filter\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': false },\n * { 'user': 'fred', 'age': 40, 'active': true }\n * ];\n *\n * _.reject(users, function(o) { return !o.active; });\n * // => objects for ['fred']\n *\n * // The `_.matches` iteratee shorthand.\n * _.reject(users, { 'age': 40, 'active': true });\n * // => objects for ['barney']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.reject(users, ['active', false]);\n * // => objects for ['fred']\n *\n * // The `_.property` iteratee shorthand.\n * _.reject(users, 'active');\n * // => objects for ['barney']\n */\n function reject(collection, predicate) {\n var func = isArray(collection) ? arrayFilter : baseFilter;\n return func(collection, negate(getIteratee(predicate, 3)));\n }\n\n /**\n * Gets a random element from `collection`.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to sample.\n * @returns {*} Returns the random element.\n * @example\n *\n * _.sample([1, 2, 3, 4]);\n * // => 2\n */\n function sample(collection) {\n var func = isArray(collection) ? arraySample : baseSample;\n return func(collection);\n }\n\n /**\n * Gets `n` random elements at unique keys from `collection` up to the\n * size of `collection`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to sample.\n * @param {number} [n=1] The number of elements to sample.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the random elements.\n * @example\n *\n * _.sampleSize([1, 2, 3], 2);\n * // => [3, 1]\n *\n * _.sampleSize([1, 2, 3], 4);\n * // => [2, 3, 1]\n */\n function sampleSize(collection, n, guard) {\n if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) {\n n = 1;\n } else {\n n = toInteger(n);\n }\n var func = isArray(collection) ? arraySampleSize : baseSampleSize;\n return func(collection, n);\n }\n\n /**\n * Creates an array of shuffled values, using a version of the\n * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to shuffle.\n * @returns {Array} Returns the new shuffled array.\n * @example\n *\n * _.shuffle([1, 2, 3, 4]);\n * // => [4, 1, 3, 2]\n */\n function shuffle(collection) {\n var func = isArray(collection) ? arrayShuffle : baseShuffle;\n return func(collection);\n }\n\n /**\n * Gets the size of `collection` by returning its length for array-like\n * values or the number of own enumerable string keyed properties for objects.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object|string} collection The collection to inspect.\n * @returns {number} Returns the collection size.\n * @example\n *\n * _.size([1, 2, 3]);\n * // => 3\n *\n * _.size({ 'a': 1, 'b': 2 });\n * // => 2\n *\n * _.size('pebbles');\n * // => 7\n */\n function size(collection) {\n if (collection == null) {\n return 0;\n }\n if (isArrayLike(collection)) {\n return isString(collection) ? stringSize(collection) : collection.length;\n }\n var tag = getTag(collection);\n if (tag == mapTag || tag == setTag) {\n return collection.size;\n }\n return baseKeys(collection).length;\n }\n\n /**\n * Checks if `predicate` returns truthy for **any** element of `collection`.\n * Iteration is stopped once `predicate` returns truthy. The predicate is\n * invoked with three arguments: (value, index|key, collection).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n * @example\n *\n * _.some([null, 0, 'yes', false], Boolean);\n * // => true\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false }\n * ];\n *\n * // The `_.matches` iteratee shorthand.\n * _.some(users, { 'user': 'barney', 'active': false });\n * // => false\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.some(users, ['active', false]);\n * // => true\n *\n * // The `_.property` iteratee shorthand.\n * _.some(users, 'active');\n * // => true\n */\n function some(collection, predicate, guard) {\n var func = isArray(collection) ? arraySome : baseSome;\n if (guard && isIterateeCall(collection, predicate, guard)) {\n predicate = undefined;\n }\n return func(collection, getIteratee(predicate, 3));\n }\n\n /**\n * Creates an array of elements, sorted in ascending order by the results of\n * running each element in a collection thru each iteratee. This method\n * performs a stable sort, that is, it preserves the original sort order of\n * equal elements. The iteratees are invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {...(Function|Function[])} [iteratees=[_.identity]]\n * The iteratees to sort by.\n * @returns {Array} Returns the new sorted array.\n * @example\n *\n * var users = [\n * { 'user': 'fred', 'age': 48 },\n * { 'user': 'barney', 'age': 36 },\n * { 'user': 'fred', 'age': 30 },\n * { 'user': 'barney', 'age': 34 }\n * ];\n *\n * _.sortBy(users, [function(o) { return o.user; }]);\n * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 30]]\n *\n * _.sortBy(users, ['user', 'age']);\n * // => objects for [['barney', 34], ['barney', 36], ['fred', 30], ['fred', 48]]\n */\n var sortBy = baseRest(function(collection, iteratees) {\n if (collection == null) {\n return [];\n }\n var length = iteratees.length;\n if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) {\n iteratees = [];\n } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {\n iteratees = [iteratees[0]];\n }\n return baseOrderBy(collection, baseFlatten(iteratees, 1), []);\n });\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Gets the timestamp of the number of milliseconds that have elapsed since\n * the Unix epoch (1 January 1970 00:00:00 UTC).\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Date\n * @returns {number} Returns the timestamp.\n * @example\n *\n * _.defer(function(stamp) {\n * console.log(_.now() - stamp);\n * }, _.now());\n * // => Logs the number of milliseconds it took for the deferred invocation.\n */\n var now = ctxNow || function() {\n return root.Date.now();\n };\n\n /*------------------------------------------------------------------------*/\n\n /**\n * The opposite of `_.before`; this method creates a function that invokes\n * `func` once it's called `n` or more times.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {number} n The number of calls before `func` is invoked.\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new restricted function.\n * @example\n *\n * var saves = ['profile', 'settings'];\n *\n * var done = _.after(saves.length, function() {\n * console.log('done saving!');\n * });\n *\n * _.forEach(saves, function(type) {\n * asyncSave({ 'type': type, 'complete': done });\n * });\n * // => Logs 'done saving!' after the two async saves have completed.\n */\n function after(n, func) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n n = toInteger(n);\n return function() {\n if (--n < 1) {\n return func.apply(this, arguments);\n }\n };\n }\n\n /**\n * Creates a function that invokes `func`, with up to `n` arguments,\n * ignoring any additional arguments.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} func The function to cap arguments for.\n * @param {number} [n=func.length] The arity cap.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the new capped function.\n * @example\n *\n * _.map(['6', '8', '10'], _.ary(parseInt, 1));\n * // => [6, 8, 10]\n */\n function ary(func, n, guard) {\n n = guard ? undefined : n;\n n = (func && n == null) ? func.length : n;\n return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n);\n }\n\n /**\n * Creates a function that invokes `func`, with the `this` binding and arguments\n * of the created function, while it's called less than `n` times. Subsequent\n * calls to the created function return the result of the last `func` invocation.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {number} n The number of calls at which `func` is no longer invoked.\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new restricted function.\n * @example\n *\n * jQuery(element).on('click', _.before(5, addContactToList));\n * // => Allows adding up to 4 contacts to the list.\n */\n function before(n, func) {\n var result;\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n n = toInteger(n);\n return function() {\n if (--n > 0) {\n result = func.apply(this, arguments);\n }\n if (n <= 1) {\n func = undefined;\n }\n return result;\n };\n }\n\n /**\n * Creates a function that invokes `func` with the `this` binding of `thisArg`\n * and `partials` prepended to the arguments it receives.\n *\n * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,\n * may be used as a placeholder for partially applied arguments.\n *\n * **Note:** Unlike native `Function#bind`, this method doesn't set the \"length\"\n * property of bound functions.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to bind.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new bound function.\n * @example\n *\n * function greet(greeting, punctuation) {\n * return greeting + ' ' + this.user + punctuation;\n * }\n *\n * var object = { 'user': 'fred' };\n *\n * var bound = _.bind(greet, object, 'hi');\n * bound('!');\n * // => 'hi fred!'\n *\n * // Bound with placeholders.\n * var bound = _.bind(greet, object, _, '!');\n * bound('hi');\n * // => 'hi fred!'\n */\n var bind = baseRest(function(func, thisArg, partials) {\n var bitmask = WRAP_BIND_FLAG;\n if (partials.length) {\n var holders = replaceHolders(partials, getHolder(bind));\n bitmask |= WRAP_PARTIAL_FLAG;\n }\n return createWrap(func, bitmask, thisArg, partials, holders);\n });\n\n /**\n * Creates a function that invokes the method at `object[key]` with `partials`\n * prepended to the arguments it receives.\n *\n * This method differs from `_.bind` by allowing bound functions to reference\n * methods that may be redefined or don't yet exist. See\n * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)\n * for more details.\n *\n * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for partially applied arguments.\n *\n * @static\n * @memberOf _\n * @since 0.10.0\n * @category Function\n * @param {Object} object The object to invoke the method on.\n * @param {string} key The key of the method.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new bound function.\n * @example\n *\n * var object = {\n * 'user': 'fred',\n * 'greet': function(greeting, punctuation) {\n * return greeting + ' ' + this.user + punctuation;\n * }\n * };\n *\n * var bound = _.bindKey(object, 'greet', 'hi');\n * bound('!');\n * // => 'hi fred!'\n *\n * object.greet = function(greeting, punctuation) {\n * return greeting + 'ya ' + this.user + punctuation;\n * };\n *\n * bound('!');\n * // => 'hiya fred!'\n *\n * // Bound with placeholders.\n * var bound = _.bindKey(object, 'greet', _, '!');\n * bound('hi');\n * // => 'hiya fred!'\n */\n var bindKey = baseRest(function(object, key, partials) {\n var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG;\n if (partials.length) {\n var holders = replaceHolders(partials, getHolder(bindKey));\n bitmask |= WRAP_PARTIAL_FLAG;\n }\n return createWrap(key, bitmask, object, partials, holders);\n });\n\n /**\n * Creates a function that accepts arguments of `func` and either invokes\n * `func` returning its result, if at least `arity` number of arguments have\n * been provided, or returns a function that accepts the remaining `func`\n * arguments, and so on. The arity of `func` may be specified if `func.length`\n * is not sufficient.\n *\n * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,\n * may be used as a placeholder for provided arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of curried functions.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Function\n * @param {Function} func The function to curry.\n * @param {number} [arity=func.length] The arity of `func`.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the new curried function.\n * @example\n *\n * var abc = function(a, b, c) {\n * return [a, b, c];\n * };\n *\n * var curried = _.curry(abc);\n *\n * curried(1)(2)(3);\n * // => [1, 2, 3]\n *\n * curried(1, 2)(3);\n * // => [1, 2, 3]\n *\n * curried(1, 2, 3);\n * // => [1, 2, 3]\n *\n * // Curried with placeholders.\n * curried(1)(_, 3)(2);\n * // => [1, 2, 3]\n */\n function curry(func, arity, guard) {\n arity = guard ? undefined : arity;\n var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity);\n result.placeholder = curry.placeholder;\n return result;\n }\n\n /**\n * This method is like `_.curry` except that arguments are applied to `func`\n * in the manner of `_.partialRight` instead of `_.partial`.\n *\n * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for provided arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of curried functions.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} func The function to curry.\n * @param {number} [arity=func.length] The arity of `func`.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the new curried function.\n * @example\n *\n * var abc = function(a, b, c) {\n * return [a, b, c];\n * };\n *\n * var curried = _.curryRight(abc);\n *\n * curried(3)(2)(1);\n * // => [1, 2, 3]\n *\n * curried(2, 3)(1);\n * // => [1, 2, 3]\n *\n * curried(1, 2, 3);\n * // => [1, 2, 3]\n *\n * // Curried with placeholders.\n * curried(3)(1, _)(2);\n * // => [1, 2, 3]\n */\n function curryRight(func, arity, guard) {\n arity = guard ? undefined : arity;\n var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity);\n result.placeholder = curryRight.placeholder;\n return result;\n }\n\n /**\n * Creates a debounced function that delays invoking `func` until after `wait`\n * milliseconds have elapsed since the last time the debounced function was\n * invoked. The debounced function comes with a `cancel` method to cancel\n * delayed `func` invocations and a `flush` method to immediately invoke them.\n * Provide `options` to indicate whether `func` should be invoked on the\n * leading and/or trailing edge of the `wait` timeout. The `func` is invoked\n * with the last arguments provided to the debounced function. Subsequent\n * calls to the debounced function return the result of the last `func`\n * invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the debounced function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.debounce` and `_.throttle`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to debounce.\n * @param {number} [wait=0] The number of milliseconds to delay.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=false]\n * Specify invoking on the leading edge of the timeout.\n * @param {number} [options.maxWait]\n * The maximum time `func` is allowed to be delayed before it's invoked.\n * @param {boolean} [options.trailing=true]\n * Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new debounced function.\n * @example\n *\n * // Avoid costly calculations while the window size is in flux.\n * jQuery(window).on('resize', _.debounce(calculateLayout, 150));\n *\n * // Invoke `sendMail` when clicked, debouncing subsequent calls.\n * jQuery(element).on('click', _.debounce(sendMail, 300, {\n * 'leading': true,\n * 'trailing': false\n * }));\n *\n * // Ensure `batchLog` is invoked once after 1 second of debounced calls.\n * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });\n * var source = new EventSource('/stream');\n * jQuery(source).on('message', debounced);\n *\n * // Cancel the trailing debounced invocation.\n * jQuery(window).on('popstate', debounced.cancel);\n */\n function debounce(func, wait, options) {\n var lastArgs,\n lastThis,\n maxWait,\n result,\n timerId,\n lastCallTime,\n lastInvokeTime = 0,\n leading = false,\n maxing = false,\n trailing = true;\n\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n wait = toNumber(wait) || 0;\n if (isObject(options)) {\n leading = !!options.leading;\n maxing = 'maxWait' in options;\n maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;\n trailing = 'trailing' in options ? !!options.trailing : trailing;\n }\n\n function invokeFunc(time) {\n var args = lastArgs,\n thisArg = lastThis;\n\n lastArgs = lastThis = undefined;\n lastInvokeTime = time;\n result = func.apply(thisArg, args);\n return result;\n }\n\n function leadingEdge(time) {\n // Reset any `maxWait` timer.\n lastInvokeTime = time;\n // Start the timer for the trailing edge.\n timerId = setTimeout(timerExpired, wait);\n // Invoke the leading edge.\n return leading ? invokeFunc(time) : result;\n }\n\n function remainingWait(time) {\n var timeSinceLastCall = time - lastCallTime,\n timeSinceLastInvoke = time - lastInvokeTime,\n timeWaiting = wait - timeSinceLastCall;\n\n return maxing\n ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke)\n : timeWaiting;\n }\n\n function shouldInvoke(time) {\n var timeSinceLastCall = time - lastCallTime,\n timeSinceLastInvoke = time - lastInvokeTime;\n\n // Either this is the first call, activity has stopped and we're at the\n // trailing edge, the system time has gone backwards and we're treating\n // it as the trailing edge, or we've hit the `maxWait` limit.\n return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||\n (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));\n }\n\n function timerExpired() {\n var time = now();\n if (shouldInvoke(time)) {\n return trailingEdge(time);\n }\n // Restart the timer.\n timerId = setTimeout(timerExpired, remainingWait(time));\n }\n\n function trailingEdge(time) {\n timerId = undefined;\n\n // Only invoke if we have `lastArgs` which means `func` has been\n // debounced at least once.\n if (trailing && lastArgs) {\n return invokeFunc(time);\n }\n lastArgs = lastThis = undefined;\n return result;\n }\n\n function cancel() {\n if (timerId !== undefined) {\n clearTimeout(timerId);\n }\n lastInvokeTime = 0;\n lastArgs = lastCallTime = lastThis = timerId = undefined;\n }\n\n function flush() {\n return timerId === undefined ? result : trailingEdge(now());\n }\n\n function debounced() {\n var time = now(),\n isInvoking = shouldInvoke(time);\n\n lastArgs = arguments;\n lastThis = this;\n lastCallTime = time;\n\n if (isInvoking) {\n if (timerId === undefined) {\n return leadingEdge(lastCallTime);\n }\n if (maxing) {\n // Handle invocations in a tight loop.\n clearTimeout(timerId);\n timerId = setTimeout(timerExpired, wait);\n return invokeFunc(lastCallTime);\n }\n }\n if (timerId === undefined) {\n timerId = setTimeout(timerExpired, wait);\n }\n return result;\n }\n debounced.cancel = cancel;\n debounced.flush = flush;\n return debounced;\n }\n\n /**\n * Defers invoking the `func` until the current call stack has cleared. Any\n * additional arguments are provided to `func` when it's invoked.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to defer.\n * @param {...*} [args] The arguments to invoke `func` with.\n * @returns {number} Returns the timer id.\n * @example\n *\n * _.defer(function(text) {\n * console.log(text);\n * }, 'deferred');\n * // => Logs 'deferred' after one millisecond.\n */\n var defer = baseRest(function(func, args) {\n return baseDelay(func, 1, args);\n });\n\n /**\n * Invokes `func` after `wait` milliseconds. Any additional arguments are\n * provided to `func` when it's invoked.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to delay.\n * @param {number} wait The number of milliseconds to delay invocation.\n * @param {...*} [args] The arguments to invoke `func` with.\n * @returns {number} Returns the timer id.\n * @example\n *\n * _.delay(function(text) {\n * console.log(text);\n * }, 1000, 'later');\n * // => Logs 'later' after one second.\n */\n var delay = baseRest(function(func, wait, args) {\n return baseDelay(func, toNumber(wait) || 0, args);\n });\n\n /**\n * Creates a function that invokes `func` with arguments reversed.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Function\n * @param {Function} func The function to flip arguments for.\n * @returns {Function} Returns the new flipped function.\n * @example\n *\n * var flipped = _.flip(function() {\n * return _.toArray(arguments);\n * });\n *\n * flipped('a', 'b', 'c', 'd');\n * // => ['d', 'c', 'b', 'a']\n */\n function flip(func) {\n return createWrap(func, WRAP_FLIP_FLAG);\n }\n\n /**\n * Creates a function that memoizes the result of `func`. If `resolver` is\n * provided, it determines the cache key for storing the result based on the\n * arguments provided to the memoized function. By default, the first argument\n * provided to the memoized function is used as the map cache key. The `func`\n * is invoked with the `this` binding of the memoized function.\n *\n * **Note:** The cache is exposed as the `cache` property on the memoized\n * function. Its creation may be customized by replacing the `_.memoize.Cache`\n * constructor with one whose instances implement the\n * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)\n * method interface of `clear`, `delete`, `get`, `has`, and `set`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to have its output memoized.\n * @param {Function} [resolver] The function to resolve the cache key.\n * @returns {Function} Returns the new memoized function.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n * var other = { 'c': 3, 'd': 4 };\n *\n * var values = _.memoize(_.values);\n * values(object);\n * // => [1, 2]\n *\n * values(other);\n * // => [3, 4]\n *\n * object.a = 2;\n * values(object);\n * // => [1, 2]\n *\n * // Modify the result cache.\n * values.cache.set(object, ['a', 'b']);\n * values(object);\n * // => ['a', 'b']\n *\n * // Replace `_.memoize.Cache`.\n * _.memoize.Cache = WeakMap;\n */\n function memoize(func, resolver) {\n if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n var memoized = function() {\n var args = arguments,\n key = resolver ? resolver.apply(this, args) : args[0],\n cache = memoized.cache;\n\n if (cache.has(key)) {\n return cache.get(key);\n }\n var result = func.apply(this, args);\n memoized.cache = cache.set(key, result) || cache;\n return result;\n };\n memoized.cache = new (memoize.Cache || MapCache);\n return memoized;\n }\n\n // Expose `MapCache`.\n memoize.Cache = MapCache;\n\n /**\n * Creates a function that negates the result of the predicate `func`. The\n * `func` predicate is invoked with the `this` binding and arguments of the\n * created function.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} predicate The predicate to negate.\n * @returns {Function} Returns the new negated function.\n * @example\n *\n * function isEven(n) {\n * return n % 2 == 0;\n * }\n *\n * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));\n * // => [1, 3, 5]\n */\n function negate(predicate) {\n if (typeof predicate != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n return function() {\n var args = arguments;\n switch (args.length) {\n case 0: return !predicate.call(this);\n case 1: return !predicate.call(this, args[0]);\n case 2: return !predicate.call(this, args[0], args[1]);\n case 3: return !predicate.call(this, args[0], args[1], args[2]);\n }\n return !predicate.apply(this, args);\n };\n }\n\n /**\n * Creates a function that is restricted to invoking `func` once. Repeat calls\n * to the function return the value of the first invocation. The `func` is\n * invoked with the `this` binding and arguments of the created function.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new restricted function.\n * @example\n *\n * var initialize = _.once(createApplication);\n * initialize();\n * initialize();\n * // => `createApplication` is invoked once\n */\n function once(func) {\n return before(2, func);\n }\n\n /**\n * Creates a function that invokes `func` with its arguments transformed.\n *\n * @static\n * @since 4.0.0\n * @memberOf _\n * @category Function\n * @param {Function} func The function to wrap.\n * @param {...(Function|Function[])} [transforms=[_.identity]]\n * The argument transforms.\n * @returns {Function} Returns the new function.\n * @example\n *\n * function doubled(n) {\n * return n * 2;\n * }\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * var func = _.overArgs(function(x, y) {\n * return [x, y];\n * }, [square, doubled]);\n *\n * func(9, 3);\n * // => [81, 6]\n *\n * func(10, 5);\n * // => [100, 10]\n */\n var overArgs = castRest(function(func, transforms) {\n transforms = (transforms.length == 1 && isArray(transforms[0]))\n ? arrayMap(transforms[0], baseUnary(getIteratee()))\n : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee()));\n\n var funcsLength = transforms.length;\n return baseRest(function(args) {\n var index = -1,\n length = nativeMin(args.length, funcsLength);\n\n while (++index < length) {\n args[index] = transforms[index].call(this, args[index]);\n }\n return apply(func, this, args);\n });\n });\n\n /**\n * Creates a function that invokes `func` with `partials` prepended to the\n * arguments it receives. This method is like `_.bind` except it does **not**\n * alter the `this` binding.\n *\n * The `_.partial.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for partially applied arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of partially\n * applied functions.\n *\n * @static\n * @memberOf _\n * @since 0.2.0\n * @category Function\n * @param {Function} func The function to partially apply arguments to.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new partially applied function.\n * @example\n *\n * function greet(greeting, name) {\n * return greeting + ' ' + name;\n * }\n *\n * var sayHelloTo = _.partial(greet, 'hello');\n * sayHelloTo('fred');\n * // => 'hello fred'\n *\n * // Partially applied with placeholders.\n * var greetFred = _.partial(greet, _, 'fred');\n * greetFred('hi');\n * // => 'hi fred'\n */\n var partial = baseRest(function(func, partials) {\n var holders = replaceHolders(partials, getHolder(partial));\n return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders);\n });\n\n /**\n * This method is like `_.partial` except that partially applied arguments\n * are appended to the arguments it receives.\n *\n * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for partially applied arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of partially\n * applied functions.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Function\n * @param {Function} func The function to partially apply arguments to.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new partially applied function.\n * @example\n *\n * function greet(greeting, name) {\n * return greeting + ' ' + name;\n * }\n *\n * var greetFred = _.partialRight(greet, 'fred');\n * greetFred('hi');\n * // => 'hi fred'\n *\n * // Partially applied with placeholders.\n * var sayHelloTo = _.partialRight(greet, 'hello', _);\n * sayHelloTo('fred');\n * // => 'hello fred'\n */\n var partialRight = baseRest(function(func, partials) {\n var holders = replaceHolders(partials, getHolder(partialRight));\n return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders);\n });\n\n /**\n * Creates a function that invokes `func` with arguments arranged according\n * to the specified `indexes` where the argument value at the first index is\n * provided as the first argument, the argument value at the second index is\n * provided as the second argument, and so on.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} func The function to rearrange arguments for.\n * @param {...(number|number[])} indexes The arranged argument indexes.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var rearged = _.rearg(function(a, b, c) {\n * return [a, b, c];\n * }, [2, 0, 1]);\n *\n * rearged('b', 'c', 'a')\n * // => ['a', 'b', 'c']\n */\n var rearg = flatRest(function(func, indexes) {\n return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes);\n });\n\n /**\n * Creates a function that invokes `func` with the `this` binding of the\n * created function and arguments from `start` and beyond provided as\n * an array.\n *\n * **Note:** This method is based on the\n * [rest parameter](https://mdn.io/rest_parameters).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Function\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var say = _.rest(function(what, names) {\n * return what + ' ' + _.initial(names).join(', ') +\n * (_.size(names) > 1 ? ', & ' : '') + _.last(names);\n * });\n *\n * say('hello', 'fred', 'barney', 'pebbles');\n * // => 'hello fred, barney, & pebbles'\n */\n function rest(func, start) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n start = start === undefined ? start : toInteger(start);\n return baseRest(func, start);\n }\n\n /**\n * Creates a function that invokes `func` with the `this` binding of the\n * create function and an array of arguments much like\n * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).\n *\n * **Note:** This method is based on the\n * [spread operator](https://mdn.io/spread_operator).\n *\n * @static\n * @memberOf _\n * @since 3.2.0\n * @category Function\n * @param {Function} func The function to spread arguments over.\n * @param {number} [start=0] The start position of the spread.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var say = _.spread(function(who, what) {\n * return who + ' says ' + what;\n * });\n *\n * say(['fred', 'hello']);\n * // => 'fred says hello'\n *\n * var numbers = Promise.all([\n * Promise.resolve(40),\n * Promise.resolve(36)\n * ]);\n *\n * numbers.then(_.spread(function(x, y) {\n * return x + y;\n * }));\n * // => a Promise of 76\n */\n function spread(func, start) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n start = start == null ? 0 : nativeMax(toInteger(start), 0);\n return baseRest(function(args) {\n var array = args[start],\n otherArgs = castSlice(args, 0, start);\n\n if (array) {\n arrayPush(otherArgs, array);\n }\n return apply(func, this, otherArgs);\n });\n }\n\n /**\n * Creates a throttled function that only invokes `func` at most once per\n * every `wait` milliseconds. The throttled function comes with a `cancel`\n * method to cancel delayed `func` invocations and a `flush` method to\n * immediately invoke them. Provide `options` to indicate whether `func`\n * should be invoked on the leading and/or trailing edge of the `wait`\n * timeout. The `func` is invoked with the last arguments provided to the\n * throttled function. Subsequent calls to the throttled function return the\n * result of the last `func` invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the throttled function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.throttle` and `_.debounce`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to throttle.\n * @param {number} [wait=0] The number of milliseconds to throttle invocations to.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=true]\n * Specify invoking on the leading edge of the timeout.\n * @param {boolean} [options.trailing=true]\n * Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new throttled function.\n * @example\n *\n * // Avoid excessively updating the position while scrolling.\n * jQuery(window).on('scroll', _.throttle(updatePosition, 100));\n *\n * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.\n * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });\n * jQuery(element).on('click', throttled);\n *\n * // Cancel the trailing throttled invocation.\n * jQuery(window).on('popstate', throttled.cancel);\n */\n function throttle(func, wait, options) {\n var leading = true,\n trailing = true;\n\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n if (isObject(options)) {\n leading = 'leading' in options ? !!options.leading : leading;\n trailing = 'trailing' in options ? !!options.trailing : trailing;\n }\n return debounce(func, wait, {\n 'leading': leading,\n 'maxWait': wait,\n 'trailing': trailing\n });\n }\n\n /**\n * Creates a function that accepts up to one argument, ignoring any\n * additional arguments.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Function\n * @param {Function} func The function to cap arguments for.\n * @returns {Function} Returns the new capped function.\n * @example\n *\n * _.map(['6', '8', '10'], _.unary(parseInt));\n * // => [6, 8, 10]\n */\n function unary(func) {\n return ary(func, 1);\n }\n\n /**\n * Creates a function that provides `value` to `wrapper` as its first\n * argument. Any additional arguments provided to the function are appended\n * to those provided to the `wrapper`. The wrapper is invoked with the `this`\n * binding of the created function.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {*} value The value to wrap.\n * @param {Function} [wrapper=identity] The wrapper function.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var p = _.wrap(_.escape, function(func, text) {\n * return '' + func(text) + '
';\n * });\n *\n * p('fred, barney, & pebbles');\n * // => 'fred, barney, & pebbles
'\n */\n function wrap(value, wrapper) {\n return partial(castFunction(wrapper), value);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Casts `value` as an array if it's not one.\n *\n * @static\n * @memberOf _\n * @since 4.4.0\n * @category Lang\n * @param {*} value The value to inspect.\n * @returns {Array} Returns the cast array.\n * @example\n *\n * _.castArray(1);\n * // => [1]\n *\n * _.castArray({ 'a': 1 });\n * // => [{ 'a': 1 }]\n *\n * _.castArray('abc');\n * // => ['abc']\n *\n * _.castArray(null);\n * // => [null]\n *\n * _.castArray(undefined);\n * // => [undefined]\n *\n * _.castArray();\n * // => []\n *\n * var array = [1, 2, 3];\n * console.log(_.castArray(array) === array);\n * // => true\n */\n function castArray() {\n if (!arguments.length) {\n return [];\n }\n var value = arguments[0];\n return isArray(value) ? value : [value];\n }\n\n /**\n * Creates a shallow clone of `value`.\n *\n * **Note:** This method is loosely based on the\n * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)\n * and supports cloning arrays, array buffers, booleans, date objects, maps,\n * numbers, `Object` objects, regexes, sets, strings, symbols, and typed\n * arrays. The own enumerable properties of `arguments` objects are cloned\n * as plain objects. An empty object is returned for uncloneable values such\n * as error objects, functions, DOM nodes, and WeakMaps.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to clone.\n * @returns {*} Returns the cloned value.\n * @see _.cloneDeep\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var shallow = _.clone(objects);\n * console.log(shallow[0] === objects[0]);\n * // => true\n */\n function clone(value) {\n return baseClone(value, CLONE_SYMBOLS_FLAG);\n }\n\n /**\n * This method is like `_.clone` except that it accepts `customizer` which\n * is invoked to produce the cloned value. If `customizer` returns `undefined`,\n * cloning is handled by the method instead. The `customizer` is invoked with\n * up to four arguments; (value [, index|key, object, stack]).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to clone.\n * @param {Function} [customizer] The function to customize cloning.\n * @returns {*} Returns the cloned value.\n * @see _.cloneDeepWith\n * @example\n *\n * function customizer(value) {\n * if (_.isElement(value)) {\n * return value.cloneNode(false);\n * }\n * }\n *\n * var el = _.cloneWith(document.body, customizer);\n *\n * console.log(el === document.body);\n * // => false\n * console.log(el.nodeName);\n * // => 'BODY'\n * console.log(el.childNodes.length);\n * // => 0\n */\n function cloneWith(value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseClone(value, CLONE_SYMBOLS_FLAG, customizer);\n }\n\n /**\n * This method is like `_.clone` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @returns {*} Returns the deep cloned value.\n * @see _.clone\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var deep = _.cloneDeep(objects);\n * console.log(deep[0] === objects[0]);\n * // => false\n */\n function cloneDeep(value) {\n return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);\n }\n\n /**\n * This method is like `_.cloneWith` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @param {Function} [customizer] The function to customize cloning.\n * @returns {*} Returns the deep cloned value.\n * @see _.cloneWith\n * @example\n *\n * function customizer(value) {\n * if (_.isElement(value)) {\n * return value.cloneNode(true);\n * }\n * }\n *\n * var el = _.cloneDeepWith(document.body, customizer);\n *\n * console.log(el === document.body);\n * // => false\n * console.log(el.nodeName);\n * // => 'BODY'\n * console.log(el.childNodes.length);\n * // => 20\n */\n function cloneDeepWith(value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);\n }\n\n /**\n * Checks if `object` conforms to `source` by invoking the predicate\n * properties of `source` with the corresponding property values of `object`.\n *\n * **Note:** This method is equivalent to `_.conforms` when `source` is\n * partially applied.\n *\n * @static\n * @memberOf _\n * @since 4.14.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property predicates to conform to.\n * @returns {boolean} Returns `true` if `object` conforms, else `false`.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n *\n * _.conformsTo(object, { 'b': function(n) { return n > 1; } });\n * // => true\n *\n * _.conformsTo(object, { 'b': function(n) { return n > 2; } });\n * // => false\n */\n function conformsTo(object, source) {\n return source == null || baseConformsTo(object, source, keys(source));\n }\n\n /**\n * Performs a\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * comparison between two values to determine if they are equivalent.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.eq(object, object);\n * // => true\n *\n * _.eq(object, other);\n * // => false\n *\n * _.eq('a', 'a');\n * // => true\n *\n * _.eq('a', Object('a'));\n * // => false\n *\n * _.eq(NaN, NaN);\n * // => true\n */\n function eq(value, other) {\n return value === other || (value !== value && other !== other);\n }\n\n /**\n * Checks if `value` is greater than `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than `other`,\n * else `false`.\n * @see _.lt\n * @example\n *\n * _.gt(3, 1);\n * // => true\n *\n * _.gt(3, 3);\n * // => false\n *\n * _.gt(1, 3);\n * // => false\n */\n var gt = createRelationalOperation(baseGt);\n\n /**\n * Checks if `value` is greater than or equal to `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than or equal to\n * `other`, else `false`.\n * @see _.lte\n * @example\n *\n * _.gte(3, 1);\n * // => true\n *\n * _.gte(3, 3);\n * // => true\n *\n * _.gte(1, 3);\n * // => false\n */\n var gte = createRelationalOperation(function(value, other) {\n return value >= other;\n });\n\n /**\n * Checks if `value` is likely an `arguments` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n * else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\n var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {\n return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&\n !propertyIsEnumerable.call(value, 'callee');\n };\n\n /**\n * Checks if `value` is classified as an `Array` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array, else `false`.\n * @example\n *\n * _.isArray([1, 2, 3]);\n * // => true\n *\n * _.isArray(document.body.children);\n * // => false\n *\n * _.isArray('abc');\n * // => false\n *\n * _.isArray(_.noop);\n * // => false\n */\n var isArray = Array.isArray;\n\n /**\n * Checks if `value` is classified as an `ArrayBuffer` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.\n * @example\n *\n * _.isArrayBuffer(new ArrayBuffer(2));\n * // => true\n *\n * _.isArrayBuffer(new Array(2));\n * // => false\n */\n var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer;\n\n /**\n * Checks if `value` is array-like. A value is considered array-like if it's\n * not a function and has a `value.length` that's an integer greater than or\n * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n * @example\n *\n * _.isArrayLike([1, 2, 3]);\n * // => true\n *\n * _.isArrayLike(document.body.children);\n * // => true\n *\n * _.isArrayLike('abc');\n * // => true\n *\n * _.isArrayLike(_.noop);\n * // => false\n */\n function isArrayLike(value) {\n return value != null && isLength(value.length) && !isFunction(value);\n }\n\n /**\n * This method is like `_.isArrayLike` except that it also checks if `value`\n * is an object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array-like object,\n * else `false`.\n * @example\n *\n * _.isArrayLikeObject([1, 2, 3]);\n * // => true\n *\n * _.isArrayLikeObject(document.body.children);\n * // => true\n *\n * _.isArrayLikeObject('abc');\n * // => false\n *\n * _.isArrayLikeObject(_.noop);\n * // => false\n */\n function isArrayLikeObject(value) {\n return isObjectLike(value) && isArrayLike(value);\n }\n\n /**\n * Checks if `value` is classified as a boolean primitive or object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a boolean, else `false`.\n * @example\n *\n * _.isBoolean(false);\n * // => true\n *\n * _.isBoolean(null);\n * // => false\n */\n function isBoolean(value) {\n return value === true || value === false ||\n (isObjectLike(value) && baseGetTag(value) == boolTag);\n }\n\n /**\n * Checks if `value` is a buffer.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.\n * @example\n *\n * _.isBuffer(new Buffer(2));\n * // => true\n *\n * _.isBuffer(new Uint8Array(2));\n * // => false\n */\n var isBuffer = nativeIsBuffer || stubFalse;\n\n /**\n * Checks if `value` is classified as a `Date` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a date object, else `false`.\n * @example\n *\n * _.isDate(new Date);\n * // => true\n *\n * _.isDate('Mon April 23 2012');\n * // => false\n */\n var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate;\n\n /**\n * Checks if `value` is likely a DOM element.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.\n * @example\n *\n * _.isElement(document.body);\n * // => true\n *\n * _.isElement('');\n * // => false\n */\n function isElement(value) {\n return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);\n }\n\n /**\n * Checks if `value` is an empty object, collection, map, or set.\n *\n * Objects are considered empty if they have no own enumerable string keyed\n * properties.\n *\n * Array-like values such as `arguments` objects, arrays, buffers, strings, or\n * jQuery-like collections are considered empty if they have a `length` of `0`.\n * Similarly, maps and sets are considered empty if they have a `size` of `0`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is empty, else `false`.\n * @example\n *\n * _.isEmpty(null);\n * // => true\n *\n * _.isEmpty(true);\n * // => true\n *\n * _.isEmpty(1);\n * // => true\n *\n * _.isEmpty([1, 2, 3]);\n * // => false\n *\n * _.isEmpty({ 'a': 1 });\n * // => false\n */\n function isEmpty(value) {\n if (value == null) {\n return true;\n }\n if (isArrayLike(value) &&\n (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||\n isBuffer(value) || isTypedArray(value) || isArguments(value))) {\n return !value.length;\n }\n var tag = getTag(value);\n if (tag == mapTag || tag == setTag) {\n return !value.size;\n }\n if (isPrototype(value)) {\n return !baseKeys(value).length;\n }\n for (var key in value) {\n if (hasOwnProperty.call(value, key)) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * Performs a deep comparison between two values to determine if they are\n * equivalent.\n *\n * **Note:** This method supports comparing arrays, array buffers, booleans,\n * date objects, error objects, maps, numbers, `Object` objects, regexes,\n * sets, strings, symbols, and typed arrays. `Object` objects are compared\n * by their own, not inherited, enumerable properties. Functions and DOM\n * nodes are compared by strict equality, i.e. `===`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.isEqual(object, other);\n * // => true\n *\n * object === other;\n * // => false\n */\n function isEqual(value, other) {\n return baseIsEqual(value, other);\n }\n\n /**\n * This method is like `_.isEqual` except that it accepts `customizer` which\n * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n * are handled by the method instead. The `customizer` is invoked with up to\n * six arguments: (objValue, othValue [, index|key, object, other, stack]).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * function isGreeting(value) {\n * return /^h(?:i|ello)$/.test(value);\n * }\n *\n * function customizer(objValue, othValue) {\n * if (isGreeting(objValue) && isGreeting(othValue)) {\n * return true;\n * }\n * }\n *\n * var array = ['hello', 'goodbye'];\n * var other = ['hi', 'goodbye'];\n *\n * _.isEqualWith(array, other, customizer);\n * // => true\n */\n function isEqualWith(value, other, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n var result = customizer ? customizer(value, other) : undefined;\n return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result;\n }\n\n /**\n * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,\n * `SyntaxError`, `TypeError`, or `URIError` object.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an error object, else `false`.\n * @example\n *\n * _.isError(new Error);\n * // => true\n *\n * _.isError(Error);\n * // => false\n */\n function isError(value) {\n if (!isObjectLike(value)) {\n return false;\n }\n var tag = baseGetTag(value);\n return tag == errorTag || tag == domExcTag ||\n (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value));\n }\n\n /**\n * Checks if `value` is a finite primitive number.\n *\n * **Note:** This method is based on\n * [`Number.isFinite`](https://mdn.io/Number/isFinite).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.\n * @example\n *\n * _.isFinite(3);\n * // => true\n *\n * _.isFinite(Number.MIN_VALUE);\n * // => true\n *\n * _.isFinite(Infinity);\n * // => false\n *\n * _.isFinite('3');\n * // => false\n */\n function isFinite(value) {\n return typeof value == 'number' && nativeIsFinite(value);\n }\n\n /**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a function, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\n function isFunction(value) {\n if (!isObject(value)) {\n return false;\n }\n // The use of `Object#toString` avoids issues with the `typeof` operator\n // in Safari 9 which returns 'object' for typed arrays and other constructors.\n var tag = baseGetTag(value);\n return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;\n }\n\n /**\n * Checks if `value` is an integer.\n *\n * **Note:** This method is based on\n * [`Number.isInteger`](https://mdn.io/Number/isInteger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an integer, else `false`.\n * @example\n *\n * _.isInteger(3);\n * // => true\n *\n * _.isInteger(Number.MIN_VALUE);\n * // => false\n *\n * _.isInteger(Infinity);\n * // => false\n *\n * _.isInteger('3');\n * // => false\n */\n function isInteger(value) {\n return typeof value == 'number' && value == toInteger(value);\n }\n\n /**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This method is loosely based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n * @example\n *\n * _.isLength(3);\n * // => true\n *\n * _.isLength(Number.MIN_VALUE);\n * // => false\n *\n * _.isLength(Infinity);\n * // => false\n *\n * _.isLength('3');\n * // => false\n */\n function isLength(value) {\n return typeof value == 'number' &&\n value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n }\n\n /**\n * Checks if `value` is the\n * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\n function isObject(value) {\n var type = typeof value;\n return value != null && (type == 'object' || type == 'function');\n }\n\n /**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\n function isObjectLike(value) {\n return value != null && typeof value == 'object';\n }\n\n /**\n * Checks if `value` is classified as a `Map` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n * @example\n *\n * _.isMap(new Map);\n * // => true\n *\n * _.isMap(new WeakMap);\n * // => false\n */\n var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;\n\n /**\n * Performs a partial deep comparison between `object` and `source` to\n * determine if `object` contains equivalent property values.\n *\n * **Note:** This method is equivalent to `_.matches` when `source` is\n * partially applied.\n *\n * Partial comparisons will match empty array and empty object `source`\n * values against any array or object value, respectively. See `_.isEqual`\n * for a list of supported value comparisons.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n *\n * _.isMatch(object, { 'b': 2 });\n * // => true\n *\n * _.isMatch(object, { 'b': 1 });\n * // => false\n */\n function isMatch(object, source) {\n return object === source || baseIsMatch(object, source, getMatchData(source));\n }\n\n /**\n * This method is like `_.isMatch` except that it accepts `customizer` which\n * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n * are handled by the method instead. The `customizer` is invoked with five\n * arguments: (objValue, srcValue, index|key, object, source).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n * @example\n *\n * function isGreeting(value) {\n * return /^h(?:i|ello)$/.test(value);\n * }\n *\n * function customizer(objValue, srcValue) {\n * if (isGreeting(objValue) && isGreeting(srcValue)) {\n * return true;\n * }\n * }\n *\n * var object = { 'greeting': 'hello' };\n * var source = { 'greeting': 'hi' };\n *\n * _.isMatchWith(object, source, customizer);\n * // => true\n */\n function isMatchWith(object, source, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseIsMatch(object, source, getMatchData(source), customizer);\n }\n\n /**\n * Checks if `value` is `NaN`.\n *\n * **Note:** This method is based on\n * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as\n * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for\n * `undefined` and other non-number values.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n * @example\n *\n * _.isNaN(NaN);\n * // => true\n *\n * _.isNaN(new Number(NaN));\n * // => true\n *\n * isNaN(undefined);\n * // => true\n *\n * _.isNaN(undefined);\n * // => false\n */\n function isNaN(value) {\n // An `NaN` primitive is the only value that is not equal to itself.\n // Perform the `toStringTag` check first to avoid errors with some\n // ActiveX objects in IE.\n return isNumber(value) && value != +value;\n }\n\n /**\n * Checks if `value` is a pristine native function.\n *\n * **Note:** This method can't reliably detect native functions in the presence\n * of the core-js package because core-js circumvents this kind of detection.\n * Despite multiple requests, the core-js maintainer has made it clear: any\n * attempt to fix the detection will be obstructed. As a result, we're left\n * with little choice but to throw an error. Unfortunately, this also affects\n * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),\n * which rely on core-js.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n * @example\n *\n * _.isNative(Array.prototype.push);\n * // => true\n *\n * _.isNative(_);\n * // => false\n */\n function isNative(value) {\n if (isMaskable(value)) {\n throw new Error(CORE_ERROR_TEXT);\n }\n return baseIsNative(value);\n }\n\n /**\n * Checks if `value` is `null`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `null`, else `false`.\n * @example\n *\n * _.isNull(null);\n * // => true\n *\n * _.isNull(void 0);\n * // => false\n */\n function isNull(value) {\n return value === null;\n }\n\n /**\n * Checks if `value` is `null` or `undefined`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is nullish, else `false`.\n * @example\n *\n * _.isNil(null);\n * // => true\n *\n * _.isNil(void 0);\n * // => true\n *\n * _.isNil(NaN);\n * // => false\n */\n function isNil(value) {\n return value == null;\n }\n\n /**\n * Checks if `value` is classified as a `Number` primitive or object.\n *\n * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are\n * classified as numbers, use the `_.isFinite` method.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a number, else `false`.\n * @example\n *\n * _.isNumber(3);\n * // => true\n *\n * _.isNumber(Number.MIN_VALUE);\n * // => true\n *\n * _.isNumber(Infinity);\n * // => true\n *\n * _.isNumber('3');\n * // => false\n */\n function isNumber(value) {\n return typeof value == 'number' ||\n (isObjectLike(value) && baseGetTag(value) == numberTag);\n }\n\n /**\n * Checks if `value` is a plain object, that is, an object created by the\n * `Object` constructor or one with a `[[Prototype]]` of `null`.\n *\n * @static\n * @memberOf _\n * @since 0.8.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * _.isPlainObject(new Foo);\n * // => false\n *\n * _.isPlainObject([1, 2, 3]);\n * // => false\n *\n * _.isPlainObject({ 'x': 0, 'y': 0 });\n * // => true\n *\n * _.isPlainObject(Object.create(null));\n * // => true\n */\n function isPlainObject(value) {\n if (!isObjectLike(value) || baseGetTag(value) != objectTag) {\n return false;\n }\n var proto = getPrototype(value);\n if (proto === null) {\n return true;\n }\n var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;\n return typeof Ctor == 'function' && Ctor instanceof Ctor &&\n funcToString.call(Ctor) == objectCtorString;\n }\n\n /**\n * Checks if `value` is classified as a `RegExp` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.\n * @example\n *\n * _.isRegExp(/abc/);\n * // => true\n *\n * _.isRegExp('/abc/');\n * // => false\n */\n var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp;\n\n /**\n * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754\n * double precision number which isn't the result of a rounded unsafe integer.\n *\n * **Note:** This method is based on\n * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.\n * @example\n *\n * _.isSafeInteger(3);\n * // => true\n *\n * _.isSafeInteger(Number.MIN_VALUE);\n * // => false\n *\n * _.isSafeInteger(Infinity);\n * // => false\n *\n * _.isSafeInteger('3');\n * // => false\n */\n function isSafeInteger(value) {\n return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER;\n }\n\n /**\n * Checks if `value` is classified as a `Set` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n * @example\n *\n * _.isSet(new Set);\n * // => true\n *\n * _.isSet(new WeakSet);\n * // => false\n */\n var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;\n\n /**\n * Checks if `value` is classified as a `String` primitive or object.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a string, else `false`.\n * @example\n *\n * _.isString('abc');\n * // => true\n *\n * _.isString(1);\n * // => false\n */\n function isString(value) {\n return typeof value == 'string' ||\n (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);\n }\n\n /**\n * Checks if `value` is classified as a `Symbol` primitive or object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n * @example\n *\n * _.isSymbol(Symbol.iterator);\n * // => true\n *\n * _.isSymbol('abc');\n * // => false\n */\n function isSymbol(value) {\n return typeof value == 'symbol' ||\n (isObjectLike(value) && baseGetTag(value) == symbolTag);\n }\n\n /**\n * Checks if `value` is classified as a typed array.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n * @example\n *\n * _.isTypedArray(new Uint8Array);\n * // => true\n *\n * _.isTypedArray([]);\n * // => false\n */\n var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;\n\n /**\n * Checks if `value` is `undefined`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.\n * @example\n *\n * _.isUndefined(void 0);\n * // => true\n *\n * _.isUndefined(null);\n * // => false\n */\n function isUndefined(value) {\n return value === undefined;\n }\n\n /**\n * Checks if `value` is classified as a `WeakMap` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a weak map, else `false`.\n * @example\n *\n * _.isWeakMap(new WeakMap);\n * // => true\n *\n * _.isWeakMap(new Map);\n * // => false\n */\n function isWeakMap(value) {\n return isObjectLike(value) && getTag(value) == weakMapTag;\n }\n\n /**\n * Checks if `value` is classified as a `WeakSet` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a weak set, else `false`.\n * @example\n *\n * _.isWeakSet(new WeakSet);\n * // => true\n *\n * _.isWeakSet(new Set);\n * // => false\n */\n function isWeakSet(value) {\n return isObjectLike(value) && baseGetTag(value) == weakSetTag;\n }\n\n /**\n * Checks if `value` is less than `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than `other`,\n * else `false`.\n * @see _.gt\n * @example\n *\n * _.lt(1, 3);\n * // => true\n *\n * _.lt(3, 3);\n * // => false\n *\n * _.lt(3, 1);\n * // => false\n */\n var lt = createRelationalOperation(baseLt);\n\n /**\n * Checks if `value` is less than or equal to `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than or equal to\n * `other`, else `false`.\n * @see _.gte\n * @example\n *\n * _.lte(1, 3);\n * // => true\n *\n * _.lte(3, 3);\n * // => true\n *\n * _.lte(3, 1);\n * // => false\n */\n var lte = createRelationalOperation(function(value, other) {\n return value <= other;\n });\n\n /**\n * Converts `value` to an array.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Array} Returns the converted array.\n * @example\n *\n * _.toArray({ 'a': 1, 'b': 2 });\n * // => [1, 2]\n *\n * _.toArray('abc');\n * // => ['a', 'b', 'c']\n *\n * _.toArray(1);\n * // => []\n *\n * _.toArray(null);\n * // => []\n */\n function toArray(value) {\n if (!value) {\n return [];\n }\n if (isArrayLike(value)) {\n return isString(value) ? stringToArray(value) : copyArray(value);\n }\n if (symIterator && value[symIterator]) {\n return iteratorToArray(value[symIterator]());\n }\n var tag = getTag(value),\n func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values);\n\n return func(value);\n }\n\n /**\n * Converts `value` to a finite number.\n *\n * @static\n * @memberOf _\n * @since 4.12.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted number.\n * @example\n *\n * _.toFinite(3.2);\n * // => 3.2\n *\n * _.toFinite(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toFinite(Infinity);\n * // => 1.7976931348623157e+308\n *\n * _.toFinite('3.2');\n * // => 3.2\n */\n function toFinite(value) {\n if (!value) {\n return value === 0 ? value : 0;\n }\n value = toNumber(value);\n if (value === INFINITY || value === -INFINITY) {\n var sign = (value < 0 ? -1 : 1);\n return sign * MAX_INTEGER;\n }\n return value === value ? value : 0;\n }\n\n /**\n * Converts `value` to an integer.\n *\n * **Note:** This method is loosely based on\n * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toInteger(3.2);\n * // => 3\n *\n * _.toInteger(Number.MIN_VALUE);\n * // => 0\n *\n * _.toInteger(Infinity);\n * // => 1.7976931348623157e+308\n *\n * _.toInteger('3.2');\n * // => 3\n */\n function toInteger(value) {\n var result = toFinite(value),\n remainder = result % 1;\n\n return result === result ? (remainder ? result - remainder : result) : 0;\n }\n\n /**\n * Converts `value` to an integer suitable for use as the length of an\n * array-like object.\n *\n * **Note:** This method is based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toLength(3.2);\n * // => 3\n *\n * _.toLength(Number.MIN_VALUE);\n * // => 0\n *\n * _.toLength(Infinity);\n * // => 4294967295\n *\n * _.toLength('3.2');\n * // => 3\n */\n function toLength(value) {\n return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;\n }\n\n /**\n * Converts `value` to a number.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n * @example\n *\n * _.toNumber(3.2);\n * // => 3.2\n *\n * _.toNumber(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toNumber(Infinity);\n * // => Infinity\n *\n * _.toNumber('3.2');\n * // => 3.2\n */\n function toNumber(value) {\n if (typeof value == 'number') {\n return value;\n }\n if (isSymbol(value)) {\n return NAN;\n }\n if (isObject(value)) {\n var other = typeof value.valueOf == 'function' ? value.valueOf() : value;\n value = isObject(other) ? (other + '') : other;\n }\n if (typeof value != 'string') {\n return value === 0 ? value : +value;\n }\n value = baseTrim(value);\n var isBinary = reIsBinary.test(value);\n return (isBinary || reIsOctal.test(value))\n ? freeParseInt(value.slice(2), isBinary ? 2 : 8)\n : (reIsBadHex.test(value) ? NAN : +value);\n }\n\n /**\n * Converts `value` to a plain object flattening inherited enumerable string\n * keyed properties of `value` to own properties of the plain object.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Object} Returns the converted plain object.\n * @example\n *\n * function Foo() {\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.assign({ 'a': 1 }, new Foo);\n * // => { 'a': 1, 'b': 2 }\n *\n * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));\n * // => { 'a': 1, 'b': 2, 'c': 3 }\n */\n function toPlainObject(value) {\n return copyObject(value, keysIn(value));\n }\n\n /**\n * Converts `value` to a safe integer. A safe integer can be compared and\n * represented correctly.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toSafeInteger(3.2);\n * // => 3\n *\n * _.toSafeInteger(Number.MIN_VALUE);\n * // => 0\n *\n * _.toSafeInteger(Infinity);\n * // => 9007199254740991\n *\n * _.toSafeInteger('3.2');\n * // => 3\n */\n function toSafeInteger(value) {\n return value\n ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER)\n : (value === 0 ? value : 0);\n }\n\n /**\n * Converts `value` to a string. An empty string is returned for `null`\n * and `undefined` values. The sign of `-0` is preserved.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n * @example\n *\n * _.toString(null);\n * // => ''\n *\n * _.toString(-0);\n * // => '-0'\n *\n * _.toString([1, 2, 3]);\n * // => '1,2,3'\n */\n function toString(value) {\n return value == null ? '' : baseToString(value);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Assigns own enumerable string keyed properties of source objects to the\n * destination object. Source objects are applied from left to right.\n * Subsequent sources overwrite property assignments of previous sources.\n *\n * **Note:** This method mutates `object` and is loosely based on\n * [`Object.assign`](https://mdn.io/Object/assign).\n *\n * @static\n * @memberOf _\n * @since 0.10.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.assignIn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * function Bar() {\n * this.c = 3;\n * }\n *\n * Foo.prototype.b = 2;\n * Bar.prototype.d = 4;\n *\n * _.assign({ 'a': 0 }, new Foo, new Bar);\n * // => { 'a': 1, 'c': 3 }\n */\n var assign = createAssigner(function(object, source) {\n if (isPrototype(source) || isArrayLike(source)) {\n copyObject(source, keys(source), object);\n return;\n }\n for (var key in source) {\n if (hasOwnProperty.call(source, key)) {\n assignValue(object, key, source[key]);\n }\n }\n });\n\n /**\n * This method is like `_.assign` except that it iterates over own and\n * inherited source properties.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias extend\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.assign\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * function Bar() {\n * this.c = 3;\n * }\n *\n * Foo.prototype.b = 2;\n * Bar.prototype.d = 4;\n *\n * _.assignIn({ 'a': 0 }, new Foo, new Bar);\n * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }\n */\n var assignIn = createAssigner(function(object, source) {\n copyObject(source, keysIn(source), object);\n });\n\n /**\n * This method is like `_.assignIn` except that it accepts `customizer`\n * which is invoked to produce the assigned values. If `customizer` returns\n * `undefined`, assignment is handled by the method instead. The `customizer`\n * is invoked with five arguments: (objValue, srcValue, key, object, source).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias extendWith\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @see _.assignWith\n * @example\n *\n * function customizer(objValue, srcValue) {\n * return _.isUndefined(objValue) ? srcValue : objValue;\n * }\n *\n * var defaults = _.partialRight(_.assignInWith, customizer);\n *\n * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var assignInWith = createAssigner(function(object, source, srcIndex, customizer) {\n copyObject(source, keysIn(source), object, customizer);\n });\n\n /**\n * This method is like `_.assign` except that it accepts `customizer`\n * which is invoked to produce the assigned values. If `customizer` returns\n * `undefined`, assignment is handled by the method instead. The `customizer`\n * is invoked with five arguments: (objValue, srcValue, key, object, source).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @see _.assignInWith\n * @example\n *\n * function customizer(objValue, srcValue) {\n * return _.isUndefined(objValue) ? srcValue : objValue;\n * }\n *\n * var defaults = _.partialRight(_.assignWith, customizer);\n *\n * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var assignWith = createAssigner(function(object, source, srcIndex, customizer) {\n copyObject(source, keys(source), object, customizer);\n });\n\n /**\n * Creates an array of values corresponding to `paths` of `object`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Array} Returns the picked values.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n *\n * _.at(object, ['a[0].b.c', 'a[1]']);\n * // => [3, 4]\n */\n var at = flatRest(baseAt);\n\n /**\n * Creates an object that inherits from the `prototype` object. If a\n * `properties` object is given, its own enumerable string keyed properties\n * are assigned to the created object.\n *\n * @static\n * @memberOf _\n * @since 2.3.0\n * @category Object\n * @param {Object} prototype The object to inherit from.\n * @param {Object} [properties] The properties to assign to the object.\n * @returns {Object} Returns the new object.\n * @example\n *\n * function Shape() {\n * this.x = 0;\n * this.y = 0;\n * }\n *\n * function Circle() {\n * Shape.call(this);\n * }\n *\n * Circle.prototype = _.create(Shape.prototype, {\n * 'constructor': Circle\n * });\n *\n * var circle = new Circle;\n * circle instanceof Circle;\n * // => true\n *\n * circle instanceof Shape;\n * // => true\n */\n function create(prototype, properties) {\n var result = baseCreate(prototype);\n return properties == null ? result : baseAssign(result, properties);\n }\n\n /**\n * Assigns own and inherited enumerable string keyed properties of source\n * objects to the destination object for all destination properties that\n * resolve to `undefined`. Source objects are applied from left to right.\n * Once a property is set, additional values of the same property are ignored.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.defaultsDeep\n * @example\n *\n * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var defaults = baseRest(function(object, sources) {\n object = Object(object);\n\n var index = -1;\n var length = sources.length;\n var guard = length > 2 ? sources[2] : undefined;\n\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n length = 1;\n }\n\n while (++index < length) {\n var source = sources[index];\n var props = keysIn(source);\n var propsIndex = -1;\n var propsLength = props.length;\n\n while (++propsIndex < propsLength) {\n var key = props[propsIndex];\n var value = object[key];\n\n if (value === undefined ||\n (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) {\n object[key] = source[key];\n }\n }\n }\n\n return object;\n });\n\n /**\n * This method is like `_.defaults` except that it recursively assigns\n * default properties.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 3.10.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.defaults\n * @example\n *\n * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } });\n * // => { 'a': { 'b': 2, 'c': 3 } }\n */\n var defaultsDeep = baseRest(function(args) {\n args.push(undefined, customDefaultsMerge);\n return apply(mergeWith, undefined, args);\n });\n\n /**\n * This method is like `_.find` except that it returns the key of the first\n * element `predicate` returns truthy for instead of the element itself.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {string|undefined} Returns the key of the matched element,\n * else `undefined`.\n * @example\n *\n * var users = {\n * 'barney': { 'age': 36, 'active': true },\n * 'fred': { 'age': 40, 'active': false },\n * 'pebbles': { 'age': 1, 'active': true }\n * };\n *\n * _.findKey(users, function(o) { return o.age < 40; });\n * // => 'barney' (iteration order is not guaranteed)\n *\n * // The `_.matches` iteratee shorthand.\n * _.findKey(users, { 'age': 1, 'active': true });\n * // => 'pebbles'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findKey(users, ['active', false]);\n * // => 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.findKey(users, 'active');\n * // => 'barney'\n */\n function findKey(object, predicate) {\n return baseFindKey(object, getIteratee(predicate, 3), baseForOwn);\n }\n\n /**\n * This method is like `_.findKey` except that it iterates over elements of\n * a collection in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {string|undefined} Returns the key of the matched element,\n * else `undefined`.\n * @example\n *\n * var users = {\n * 'barney': { 'age': 36, 'active': true },\n * 'fred': { 'age': 40, 'active': false },\n * 'pebbles': { 'age': 1, 'active': true }\n * };\n *\n * _.findLastKey(users, function(o) { return o.age < 40; });\n * // => returns 'pebbles' assuming `_.findKey` returns 'barney'\n *\n * // The `_.matches` iteratee shorthand.\n * _.findLastKey(users, { 'age': 36, 'active': true });\n * // => 'barney'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findLastKey(users, ['active', false]);\n * // => 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.findLastKey(users, 'active');\n * // => 'pebbles'\n */\n function findLastKey(object, predicate) {\n return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight);\n }\n\n /**\n * Iterates over own and inherited enumerable string keyed properties of an\n * object and invokes `iteratee` for each property. The iteratee is invoked\n * with three arguments: (value, key, object). Iteratee functions may exit\n * iteration early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 0.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forInRight\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forIn(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).\n */\n function forIn(object, iteratee) {\n return object == null\n ? object\n : baseFor(object, getIteratee(iteratee, 3), keysIn);\n }\n\n /**\n * This method is like `_.forIn` except that it iterates over properties of\n * `object` in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forIn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forInRight(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'.\n */\n function forInRight(object, iteratee) {\n return object == null\n ? object\n : baseForRight(object, getIteratee(iteratee, 3), keysIn);\n }\n\n /**\n * Iterates over own enumerable string keyed properties of an object and\n * invokes `iteratee` for each property. The iteratee is invoked with three\n * arguments: (value, key, object). Iteratee functions may exit iteration\n * early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 0.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forOwnRight\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forOwn(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a' then 'b' (iteration order is not guaranteed).\n */\n function forOwn(object, iteratee) {\n return object && baseForOwn(object, getIteratee(iteratee, 3));\n }\n\n /**\n * This method is like `_.forOwn` except that it iterates over properties of\n * `object` in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forOwn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forOwnRight(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.\n */\n function forOwnRight(object, iteratee) {\n return object && baseForOwnRight(object, getIteratee(iteratee, 3));\n }\n\n /**\n * Creates an array of function property names from own enumerable properties\n * of `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to inspect.\n * @returns {Array} Returns the function names.\n * @see _.functionsIn\n * @example\n *\n * function Foo() {\n * this.a = _.constant('a');\n * this.b = _.constant('b');\n * }\n *\n * Foo.prototype.c = _.constant('c');\n *\n * _.functions(new Foo);\n * // => ['a', 'b']\n */\n function functions(object) {\n return object == null ? [] : baseFunctions(object, keys(object));\n }\n\n /**\n * Creates an array of function property names from own and inherited\n * enumerable properties of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @returns {Array} Returns the function names.\n * @see _.functions\n * @example\n *\n * function Foo() {\n * this.a = _.constant('a');\n * this.b = _.constant('b');\n * }\n *\n * Foo.prototype.c = _.constant('c');\n *\n * _.functionsIn(new Foo);\n * // => ['a', 'b', 'c']\n */\n function functionsIn(object) {\n return object == null ? [] : baseFunctions(object, keysIn(object));\n }\n\n /**\n * Gets the value at `path` of `object`. If the resolved value is\n * `undefined`, the `defaultValue` is returned in its place.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.get(object, 'a[0].b.c');\n * // => 3\n *\n * _.get(object, ['a', '0', 'b', 'c']);\n * // => 3\n *\n * _.get(object, 'a.b.c', 'default');\n * // => 'default'\n */\n function get(object, path, defaultValue) {\n var result = object == null ? undefined : baseGet(object, path);\n return result === undefined ? defaultValue : result;\n }\n\n /**\n * Checks if `path` is a direct property of `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n * @example\n *\n * var object = { 'a': { 'b': 2 } };\n * var other = _.create({ 'a': _.create({ 'b': 2 }) });\n *\n * _.has(object, 'a');\n * // => true\n *\n * _.has(object, 'a.b');\n * // => true\n *\n * _.has(object, ['a', 'b']);\n * // => true\n *\n * _.has(other, 'a');\n * // => false\n */\n function has(object, path) {\n return object != null && hasPath(object, path, baseHas);\n }\n\n /**\n * Checks if `path` is a direct or inherited property of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n * @example\n *\n * var object = _.create({ 'a': _.create({ 'b': 2 }) });\n *\n * _.hasIn(object, 'a');\n * // => true\n *\n * _.hasIn(object, 'a.b');\n * // => true\n *\n * _.hasIn(object, ['a', 'b']);\n * // => true\n *\n * _.hasIn(object, 'b');\n * // => false\n */\n function hasIn(object, path) {\n return object != null && hasPath(object, path, baseHasIn);\n }\n\n /**\n * Creates an object composed of the inverted keys and values of `object`.\n * If `object` contains duplicate values, subsequent values overwrite\n * property assignments of previous values.\n *\n * @static\n * @memberOf _\n * @since 0.7.0\n * @category Object\n * @param {Object} object The object to invert.\n * @returns {Object} Returns the new inverted object.\n * @example\n *\n * var object = { 'a': 1, 'b': 2, 'c': 1 };\n *\n * _.invert(object);\n * // => { '1': 'c', '2': 'b' }\n */\n var invert = createInverter(function(result, value, key) {\n if (value != null &&\n typeof value.toString != 'function') {\n value = nativeObjectToString.call(value);\n }\n\n result[value] = key;\n }, constant(identity));\n\n /**\n * This method is like `_.invert` except that the inverted object is generated\n * from the results of running each element of `object` thru `iteratee`. The\n * corresponding inverted value of each inverted key is an array of keys\n * responsible for generating the inverted value. The iteratee is invoked\n * with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.1.0\n * @category Object\n * @param {Object} object The object to invert.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Object} Returns the new inverted object.\n * @example\n *\n * var object = { 'a': 1, 'b': 2, 'c': 1 };\n *\n * _.invertBy(object);\n * // => { '1': ['a', 'c'], '2': ['b'] }\n *\n * _.invertBy(object, function(value) {\n * return 'group' + value;\n * });\n * // => { 'group1': ['a', 'c'], 'group2': ['b'] }\n */\n var invertBy = createInverter(function(result, value, key) {\n if (value != null &&\n typeof value.toString != 'function') {\n value = nativeObjectToString.call(value);\n }\n\n if (hasOwnProperty.call(result, value)) {\n result[value].push(key);\n } else {\n result[value] = [key];\n }\n }, getIteratee);\n\n /**\n * Invokes the method at `path` of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the method to invoke.\n * @param {...*} [args] The arguments to invoke the method with.\n * @returns {*} Returns the result of the invoked method.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };\n *\n * _.invoke(object, 'a[0].b.c.slice', 1, 3);\n * // => [2, 3]\n */\n var invoke = baseRest(baseInvoke);\n\n /**\n * Creates an array of the own enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects. See the\n * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * for more details.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keys(new Foo);\n * // => ['a', 'b'] (iteration order is not guaranteed)\n *\n * _.keys('hi');\n * // => ['0', '1']\n */\n function keys(object) {\n return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);\n }\n\n /**\n * Creates an array of the own and inherited enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keysIn(new Foo);\n * // => ['a', 'b', 'c'] (iteration order is not guaranteed)\n */\n function keysIn(object) {\n return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);\n }\n\n /**\n * The opposite of `_.mapValues`; this method creates an object with the\n * same values as `object` and keys generated by running each own enumerable\n * string keyed property of `object` thru `iteratee`. The iteratee is invoked\n * with three arguments: (value, key, object).\n *\n * @static\n * @memberOf _\n * @since 3.8.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns the new mapped object.\n * @see _.mapValues\n * @example\n *\n * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {\n * return key + value;\n * });\n * // => { 'a1': 1, 'b2': 2 }\n */\n function mapKeys(object, iteratee) {\n var result = {};\n iteratee = getIteratee(iteratee, 3);\n\n baseForOwn(object, function(value, key, object) {\n baseAssignValue(result, iteratee(value, key, object), value);\n });\n return result;\n }\n\n /**\n * Creates an object with the same keys as `object` and values generated\n * by running each own enumerable string keyed property of `object` thru\n * `iteratee`. The iteratee is invoked with three arguments:\n * (value, key, object).\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns the new mapped object.\n * @see _.mapKeys\n * @example\n *\n * var users = {\n * 'fred': { 'user': 'fred', 'age': 40 },\n * 'pebbles': { 'user': 'pebbles', 'age': 1 }\n * };\n *\n * _.mapValues(users, function(o) { return o.age; });\n * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n *\n * // The `_.property` iteratee shorthand.\n * _.mapValues(users, 'age');\n * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n */\n function mapValues(object, iteratee) {\n var result = {};\n iteratee = getIteratee(iteratee, 3);\n\n baseForOwn(object, function(value, key, object) {\n baseAssignValue(result, key, iteratee(value, key, object));\n });\n return result;\n }\n\n /**\n * This method is like `_.assign` except that it recursively merges own and\n * inherited enumerable string keyed properties of source objects into the\n * destination object. Source properties that resolve to `undefined` are\n * skipped if a destination value exists. Array and plain object properties\n * are merged recursively. Other objects and value types are overridden by\n * assignment. Source objects are applied from left to right. Subsequent\n * sources overwrite property assignments of previous sources.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {\n * 'a': [{ 'b': 2 }, { 'd': 4 }]\n * };\n *\n * var other = {\n * 'a': [{ 'c': 3 }, { 'e': 5 }]\n * };\n *\n * _.merge(object, other);\n * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }\n */\n var merge = createAssigner(function(object, source, srcIndex) {\n baseMerge(object, source, srcIndex);\n });\n\n /**\n * This method is like `_.merge` except that it accepts `customizer` which\n * is invoked to produce the merged values of the destination and source\n * properties. If `customizer` returns `undefined`, merging is handled by the\n * method instead. The `customizer` is invoked with six arguments:\n * (objValue, srcValue, key, object, source, stack).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} customizer The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * function customizer(objValue, srcValue) {\n * if (_.isArray(objValue)) {\n * return objValue.concat(srcValue);\n * }\n * }\n *\n * var object = { 'a': [1], 'b': [2] };\n * var other = { 'a': [3], 'b': [4] };\n *\n * _.mergeWith(object, other, customizer);\n * // => { 'a': [1, 3], 'b': [2, 4] }\n */\n var mergeWith = createAssigner(function(object, source, srcIndex, customizer) {\n baseMerge(object, source, srcIndex, customizer);\n });\n\n /**\n * The opposite of `_.pick`; this method creates an object composed of the\n * own and inherited enumerable property paths of `object` that are not omitted.\n *\n * **Note:** This method is considerably slower than `_.pick`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The source object.\n * @param {...(string|string[])} [paths] The property paths to omit.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.omit(object, ['a', 'c']);\n * // => { 'b': '2' }\n */\n var omit = flatRest(function(object, paths) {\n var result = {};\n if (object == null) {\n return result;\n }\n var isDeep = false;\n paths = arrayMap(paths, function(path) {\n path = castPath(path, object);\n isDeep || (isDeep = path.length > 1);\n return path;\n });\n copyObject(object, getAllKeysIn(object), result);\n if (isDeep) {\n result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone);\n }\n var length = paths.length;\n while (length--) {\n baseUnset(result, paths[length]);\n }\n return result;\n });\n\n /**\n * The opposite of `_.pickBy`; this method creates an object composed of\n * the own and inherited enumerable string keyed properties of `object` that\n * `predicate` doesn't return truthy for. The predicate is invoked with two\n * arguments: (value, key).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The source object.\n * @param {Function} [predicate=_.identity] The function invoked per property.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.omitBy(object, _.isNumber);\n * // => { 'b': '2' }\n */\n function omitBy(object, predicate) {\n return pickBy(object, negate(getIteratee(predicate)));\n }\n\n /**\n * Creates an object composed of the picked `object` properties.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The source object.\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.pick(object, ['a', 'c']);\n * // => { 'a': 1, 'c': 3 }\n */\n var pick = flatRest(function(object, paths) {\n return object == null ? {} : basePick(object, paths);\n });\n\n /**\n * Creates an object composed of the `object` properties `predicate` returns\n * truthy for. The predicate is invoked with two arguments: (value, key).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The source object.\n * @param {Function} [predicate=_.identity] The function invoked per property.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.pickBy(object, _.isNumber);\n * // => { 'a': 1, 'c': 3 }\n */\n function pickBy(object, predicate) {\n if (object == null) {\n return {};\n }\n var props = arrayMap(getAllKeysIn(object), function(prop) {\n return [prop];\n });\n predicate = getIteratee(predicate);\n return basePickBy(object, props, function(value, path) {\n return predicate(value, path[0]);\n });\n }\n\n /**\n * This method is like `_.get` except that if the resolved value is a\n * function it's invoked with the `this` binding of its parent object and\n * its result is returned.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to resolve.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };\n *\n * _.result(object, 'a[0].b.c1');\n * // => 3\n *\n * _.result(object, 'a[0].b.c2');\n * // => 4\n *\n * _.result(object, 'a[0].b.c3', 'default');\n * // => 'default'\n *\n * _.result(object, 'a[0].b.c3', _.constant('default'));\n * // => 'default'\n */\n function result(object, path, defaultValue) {\n path = castPath(path, object);\n\n var index = -1,\n length = path.length;\n\n // Ensure the loop is entered when path is empty.\n if (!length) {\n length = 1;\n object = undefined;\n }\n while (++index < length) {\n var value = object == null ? undefined : object[toKey(path[index])];\n if (value === undefined) {\n index = length;\n value = defaultValue;\n }\n object = isFunction(value) ? value.call(object) : value;\n }\n return object;\n }\n\n /**\n * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,\n * it's created. Arrays are created for missing index properties while objects\n * are created for all other missing properties. Use `_.setWith` to customize\n * `path` creation.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.set(object, 'a[0].b.c', 4);\n * console.log(object.a[0].b.c);\n * // => 4\n *\n * _.set(object, ['x', '0', 'y', 'z'], 5);\n * console.log(object.x[0].y.z);\n * // => 5\n */\n function set(object, path, value) {\n return object == null ? object : baseSet(object, path, value);\n }\n\n /**\n * This method is like `_.set` except that it accepts `customizer` which is\n * invoked to produce the objects of `path`. If `customizer` returns `undefined`\n * path creation is handled by the method instead. The `customizer` is invoked\n * with three arguments: (nsValue, key, nsObject).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {};\n *\n * _.setWith(object, '[0][1]', 'a', Object);\n * // => { '0': { '1': 'a' } }\n */\n function setWith(object, path, value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return object == null ? object : baseSet(object, path, value, customizer);\n }\n\n /**\n * Creates an array of own enumerable string keyed-value pairs for `object`\n * which can be consumed by `_.fromPairs`. If `object` is a map or set, its\n * entries are returned.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias entries\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the key-value pairs.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.toPairs(new Foo);\n * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)\n */\n var toPairs = createToPairs(keys);\n\n /**\n * Creates an array of own and inherited enumerable string keyed-value pairs\n * for `object` which can be consumed by `_.fromPairs`. If `object` is a map\n * or set, its entries are returned.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias entriesIn\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the key-value pairs.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.toPairsIn(new Foo);\n * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)\n */\n var toPairsIn = createToPairs(keysIn);\n\n /**\n * An alternative to `_.reduce`; this method transforms `object` to a new\n * `accumulator` object which is the result of running each of its own\n * enumerable string keyed properties thru `iteratee`, with each invocation\n * potentially mutating the `accumulator` object. If `accumulator` is not\n * provided, a new object with the same `[[Prototype]]` will be used. The\n * iteratee is invoked with four arguments: (accumulator, value, key, object).\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 1.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The custom accumulator value.\n * @returns {*} Returns the accumulated value.\n * @example\n *\n * _.transform([2, 3, 4], function(result, n) {\n * result.push(n *= n);\n * return n % 2 == 0;\n * }, []);\n * // => [4, 9]\n *\n * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {\n * (result[value] || (result[value] = [])).push(key);\n * }, {});\n * // => { '1': ['a', 'c'], '2': ['b'] }\n */\n function transform(object, iteratee, accumulator) {\n var isArr = isArray(object),\n isArrLike = isArr || isBuffer(object) || isTypedArray(object);\n\n iteratee = getIteratee(iteratee, 4);\n if (accumulator == null) {\n var Ctor = object && object.constructor;\n if (isArrLike) {\n accumulator = isArr ? new Ctor : [];\n }\n else if (isObject(object)) {\n accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};\n }\n else {\n accumulator = {};\n }\n }\n (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) {\n return iteratee(accumulator, value, index, object);\n });\n return accumulator;\n }\n\n /**\n * Removes the property at `path` of `object`.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to unset.\n * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 7 } }] };\n * _.unset(object, 'a[0].b.c');\n * // => true\n *\n * console.log(object);\n * // => { 'a': [{ 'b': {} }] };\n *\n * _.unset(object, ['a', '0', 'b', 'c']);\n * // => true\n *\n * console.log(object);\n * // => { 'a': [{ 'b': {} }] };\n */\n function unset(object, path) {\n return object == null ? true : baseUnset(object, path);\n }\n\n /**\n * This method is like `_.set` except that accepts `updater` to produce the\n * value to set. Use `_.updateWith` to customize `path` creation. The `updater`\n * is invoked with one argument: (value).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {Function} updater The function to produce the updated value.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.update(object, 'a[0].b.c', function(n) { return n * n; });\n * console.log(object.a[0].b.c);\n * // => 9\n *\n * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });\n * console.log(object.x[0].y.z);\n * // => 0\n */\n function update(object, path, updater) {\n return object == null ? object : baseUpdate(object, path, castFunction(updater));\n }\n\n /**\n * This method is like `_.update` except that it accepts `customizer` which is\n * invoked to produce the objects of `path`. If `customizer` returns `undefined`\n * path creation is handled by the method instead. The `customizer` is invoked\n * with three arguments: (nsValue, key, nsObject).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {Function} updater The function to produce the updated value.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {};\n *\n * _.updateWith(object, '[0][1]', _.constant('a'), Object);\n * // => { '0': { '1': 'a' } }\n */\n function updateWith(object, path, updater, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);\n }\n\n /**\n * Creates an array of the own enumerable string keyed property values of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property values.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.values(new Foo);\n * // => [1, 2] (iteration order is not guaranteed)\n *\n * _.values('hi');\n * // => ['h', 'i']\n */\n function values(object) {\n return object == null ? [] : baseValues(object, keys(object));\n }\n\n /**\n * Creates an array of the own and inherited enumerable string keyed property\n * values of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property values.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.valuesIn(new Foo);\n * // => [1, 2, 3] (iteration order is not guaranteed)\n */\n function valuesIn(object) {\n return object == null ? [] : baseValues(object, keysIn(object));\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Clamps `number` within the inclusive `lower` and `upper` bounds.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Number\n * @param {number} number The number to clamp.\n * @param {number} [lower] The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the clamped number.\n * @example\n *\n * _.clamp(-10, -5, 5);\n * // => -5\n *\n * _.clamp(10, -5, 5);\n * // => 5\n */\n function clamp(number, lower, upper) {\n if (upper === undefined) {\n upper = lower;\n lower = undefined;\n }\n if (upper !== undefined) {\n upper = toNumber(upper);\n upper = upper === upper ? upper : 0;\n }\n if (lower !== undefined) {\n lower = toNumber(lower);\n lower = lower === lower ? lower : 0;\n }\n return baseClamp(toNumber(number), lower, upper);\n }\n\n /**\n * Checks if `n` is between `start` and up to, but not including, `end`. If\n * `end` is not specified, it's set to `start` with `start` then set to `0`.\n * If `start` is greater than `end` the params are swapped to support\n * negative ranges.\n *\n * @static\n * @memberOf _\n * @since 3.3.0\n * @category Number\n * @param {number} number The number to check.\n * @param {number} [start=0] The start of the range.\n * @param {number} end The end of the range.\n * @returns {boolean} Returns `true` if `number` is in the range, else `false`.\n * @see _.range, _.rangeRight\n * @example\n *\n * _.inRange(3, 2, 4);\n * // => true\n *\n * _.inRange(4, 8);\n * // => true\n *\n * _.inRange(4, 2);\n * // => false\n *\n * _.inRange(2, 2);\n * // => false\n *\n * _.inRange(1.2, 2);\n * // => true\n *\n * _.inRange(5.2, 4);\n * // => false\n *\n * _.inRange(-3, -2, -6);\n * // => true\n */\n function inRange(number, start, end) {\n start = toFinite(start);\n if (end === undefined) {\n end = start;\n start = 0;\n } else {\n end = toFinite(end);\n }\n number = toNumber(number);\n return baseInRange(number, start, end);\n }\n\n /**\n * Produces a random number between the inclusive `lower` and `upper` bounds.\n * If only one argument is provided a number between `0` and the given number\n * is returned. If `floating` is `true`, or either `lower` or `upper` are\n * floats, a floating-point number is returned instead of an integer.\n *\n * **Note:** JavaScript follows the IEEE-754 standard for resolving\n * floating-point values which can produce unexpected results.\n *\n * @static\n * @memberOf _\n * @since 0.7.0\n * @category Number\n * @param {number} [lower=0] The lower bound.\n * @param {number} [upper=1] The upper bound.\n * @param {boolean} [floating] Specify returning a floating-point number.\n * @returns {number} Returns the random number.\n * @example\n *\n * _.random(0, 5);\n * // => an integer between 0 and 5\n *\n * _.random(5);\n * // => also an integer between 0 and 5\n *\n * _.random(5, true);\n * // => a floating-point number between 0 and 5\n *\n * _.random(1.2, 5.2);\n * // => a floating-point number between 1.2 and 5.2\n */\n function random(lower, upper, floating) {\n if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) {\n upper = floating = undefined;\n }\n if (floating === undefined) {\n if (typeof upper == 'boolean') {\n floating = upper;\n upper = undefined;\n }\n else if (typeof lower == 'boolean') {\n floating = lower;\n lower = undefined;\n }\n }\n if (lower === undefined && upper === undefined) {\n lower = 0;\n upper = 1;\n }\n else {\n lower = toFinite(lower);\n if (upper === undefined) {\n upper = lower;\n lower = 0;\n } else {\n upper = toFinite(upper);\n }\n }\n if (lower > upper) {\n var temp = lower;\n lower = upper;\n upper = temp;\n }\n if (floating || lower % 1 || upper % 1) {\n var rand = nativeRandom();\n return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper);\n }\n return baseRandom(lower, upper);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the camel cased string.\n * @example\n *\n * _.camelCase('Foo Bar');\n * // => 'fooBar'\n *\n * _.camelCase('--foo-bar--');\n * // => 'fooBar'\n *\n * _.camelCase('__FOO_BAR__');\n * // => 'fooBar'\n */\n var camelCase = createCompounder(function(result, word, index) {\n word = word.toLowerCase();\n return result + (index ? capitalize(word) : word);\n });\n\n /**\n * Converts the first character of `string` to upper case and the remaining\n * to lower case.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to capitalize.\n * @returns {string} Returns the capitalized string.\n * @example\n *\n * _.capitalize('FRED');\n * // => 'Fred'\n */\n function capitalize(string) {\n return upperFirst(toString(string).toLowerCase());\n }\n\n /**\n * Deburrs `string` by converting\n * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)\n * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)\n * letters to basic Latin letters and removing\n * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to deburr.\n * @returns {string} Returns the deburred string.\n * @example\n *\n * _.deburr('déjà vu');\n * // => 'deja vu'\n */\n function deburr(string) {\n string = toString(string);\n return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');\n }\n\n /**\n * Checks if `string` ends with the given target string.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to inspect.\n * @param {string} [target] The string to search for.\n * @param {number} [position=string.length] The position to search up to.\n * @returns {boolean} Returns `true` if `string` ends with `target`,\n * else `false`.\n * @example\n *\n * _.endsWith('abc', 'c');\n * // => true\n *\n * _.endsWith('abc', 'b');\n * // => false\n *\n * _.endsWith('abc', 'b', 2);\n * // => true\n */\n function endsWith(string, target, position) {\n string = toString(string);\n target = baseToString(target);\n\n var length = string.length;\n position = position === undefined\n ? length\n : baseClamp(toInteger(position), 0, length);\n\n var end = position;\n position -= target.length;\n return position >= 0 && string.slice(position, end) == target;\n }\n\n /**\n * Converts the characters \"&\", \"<\", \">\", '\"', and \"'\" in `string` to their\n * corresponding HTML entities.\n *\n * **Note:** No other characters are escaped. To escape additional\n * characters use a third-party library like [_he_](https://mths.be/he).\n *\n * Though the \">\" character is escaped for symmetry, characters like\n * \">\" and \"/\" don't need escaping in HTML and have no special meaning\n * unless they're part of a tag or unquoted attribute value. See\n * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)\n * (under \"semi-related fun fact\") for more details.\n *\n * When working with HTML you should always\n * [quote attribute values](http://wonko.com/post/html-escaping) to reduce\n * XSS vectors.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category String\n * @param {string} [string=''] The string to escape.\n * @returns {string} Returns the escaped string.\n * @example\n *\n * _.escape('fred, barney, & pebbles');\n * // => 'fred, barney, & pebbles'\n */\n function escape(string) {\n string = toString(string);\n return (string && reHasUnescapedHtml.test(string))\n ? string.replace(reUnescapedHtml, escapeHtmlChar)\n : string;\n }\n\n /**\n * Escapes the `RegExp` special characters \"^\", \"$\", \"\\\", \".\", \"*\", \"+\",\n * \"?\", \"(\", \")\", \"[\", \"]\", \"{\", \"}\", and \"|\" in `string`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to escape.\n * @returns {string} Returns the escaped string.\n * @example\n *\n * _.escapeRegExp('[lodash](https://lodash.com/)');\n * // => '\\[lodash\\]\\(https://lodash\\.com/\\)'\n */\n function escapeRegExp(string) {\n string = toString(string);\n return (string && reHasRegExpChar.test(string))\n ? string.replace(reRegExpChar, '\\\\$&')\n : string;\n }\n\n /**\n * Converts `string` to\n * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the kebab cased string.\n * @example\n *\n * _.kebabCase('Foo Bar');\n * // => 'foo-bar'\n *\n * _.kebabCase('fooBar');\n * // => 'foo-bar'\n *\n * _.kebabCase('__FOO_BAR__');\n * // => 'foo-bar'\n */\n var kebabCase = createCompounder(function(result, word, index) {\n return result + (index ? '-' : '') + word.toLowerCase();\n });\n\n /**\n * Converts `string`, as space separated words, to lower case.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the lower cased string.\n * @example\n *\n * _.lowerCase('--Foo-Bar--');\n * // => 'foo bar'\n *\n * _.lowerCase('fooBar');\n * // => 'foo bar'\n *\n * _.lowerCase('__FOO_BAR__');\n * // => 'foo bar'\n */\n var lowerCase = createCompounder(function(result, word, index) {\n return result + (index ? ' ' : '') + word.toLowerCase();\n });\n\n /**\n * Converts the first character of `string` to lower case.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the converted string.\n * @example\n *\n * _.lowerFirst('Fred');\n * // => 'fred'\n *\n * _.lowerFirst('FRED');\n * // => 'fRED'\n */\n var lowerFirst = createCaseFirst('toLowerCase');\n\n /**\n * Pads `string` on the left and right sides if it's shorter than `length`.\n * Padding characters are truncated if they can't be evenly divided by `length`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.pad('abc', 8);\n * // => ' abc '\n *\n * _.pad('abc', 8, '_-');\n * // => '_-abc_-_'\n *\n * _.pad('abc', 3);\n * // => 'abc'\n */\n function pad(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n if (!length || strLength >= length) {\n return string;\n }\n var mid = (length - strLength) / 2;\n return (\n createPadding(nativeFloor(mid), chars) +\n string +\n createPadding(nativeCeil(mid), chars)\n );\n }\n\n /**\n * Pads `string` on the right side if it's shorter than `length`. Padding\n * characters are truncated if they exceed `length`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.padEnd('abc', 6);\n * // => 'abc '\n *\n * _.padEnd('abc', 6, '_-');\n * // => 'abc_-_'\n *\n * _.padEnd('abc', 3);\n * // => 'abc'\n */\n function padEnd(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n return (length && strLength < length)\n ? (string + createPadding(length - strLength, chars))\n : string;\n }\n\n /**\n * Pads `string` on the left side if it's shorter than `length`. Padding\n * characters are truncated if they exceed `length`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.padStart('abc', 6);\n * // => ' abc'\n *\n * _.padStart('abc', 6, '_-');\n * // => '_-_abc'\n *\n * _.padStart('abc', 3);\n * // => 'abc'\n */\n function padStart(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n return (length && strLength < length)\n ? (createPadding(length - strLength, chars) + string)\n : string;\n }\n\n /**\n * Converts `string` to an integer of the specified radix. If `radix` is\n * `undefined` or `0`, a `radix` of `10` is used unless `value` is a\n * hexadecimal, in which case a `radix` of `16` is used.\n *\n * **Note:** This method aligns with the\n * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category String\n * @param {string} string The string to convert.\n * @param {number} [radix=10] The radix to interpret `value` by.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.parseInt('08');\n * // => 8\n *\n * _.map(['6', '08', '10'], _.parseInt);\n * // => [6, 8, 10]\n */\n function parseInt(string, radix, guard) {\n if (guard || radix == null) {\n radix = 0;\n } else if (radix) {\n radix = +radix;\n }\n return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0);\n }\n\n /**\n * Repeats the given string `n` times.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to repeat.\n * @param {number} [n=1] The number of times to repeat the string.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {string} Returns the repeated string.\n * @example\n *\n * _.repeat('*', 3);\n * // => '***'\n *\n * _.repeat('abc', 2);\n * // => 'abcabc'\n *\n * _.repeat('abc', 0);\n * // => ''\n */\n function repeat(string, n, guard) {\n if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) {\n n = 1;\n } else {\n n = toInteger(n);\n }\n return baseRepeat(toString(string), n);\n }\n\n /**\n * Replaces matches for `pattern` in `string` with `replacement`.\n *\n * **Note:** This method is based on\n * [`String#replace`](https://mdn.io/String/replace).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to modify.\n * @param {RegExp|string} pattern The pattern to replace.\n * @param {Function|string} replacement The match replacement.\n * @returns {string} Returns the modified string.\n * @example\n *\n * _.replace('Hi Fred', 'Fred', 'Barney');\n * // => 'Hi Barney'\n */\n function replace() {\n var args = arguments,\n string = toString(args[0]);\n\n return args.length < 3 ? string : string.replace(args[1], args[2]);\n }\n\n /**\n * Converts `string` to\n * [snake case](https://en.wikipedia.org/wiki/Snake_case).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the snake cased string.\n * @example\n *\n * _.snakeCase('Foo Bar');\n * // => 'foo_bar'\n *\n * _.snakeCase('fooBar');\n * // => 'foo_bar'\n *\n * _.snakeCase('--FOO-BAR--');\n * // => 'foo_bar'\n */\n var snakeCase = createCompounder(function(result, word, index) {\n return result + (index ? '_' : '') + word.toLowerCase();\n });\n\n /**\n * Splits `string` by `separator`.\n *\n * **Note:** This method is based on\n * [`String#split`](https://mdn.io/String/split).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to split.\n * @param {RegExp|string} separator The separator pattern to split by.\n * @param {number} [limit] The length to truncate results to.\n * @returns {Array} Returns the string segments.\n * @example\n *\n * _.split('a-b-c', '-', 2);\n * // => ['a', 'b']\n */\n function split(string, separator, limit) {\n if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {\n separator = limit = undefined;\n }\n limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;\n if (!limit) {\n return [];\n }\n string = toString(string);\n if (string && (\n typeof separator == 'string' ||\n (separator != null && !isRegExp(separator))\n )) {\n separator = baseToString(separator);\n if (!separator && hasUnicode(string)) {\n return castSlice(stringToArray(string), 0, limit);\n }\n }\n return string.split(separator, limit);\n }\n\n /**\n * Converts `string` to\n * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).\n *\n * @static\n * @memberOf _\n * @since 3.1.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the start cased string.\n * @example\n *\n * _.startCase('--foo-bar--');\n * // => 'Foo Bar'\n *\n * _.startCase('fooBar');\n * // => 'Foo Bar'\n *\n * _.startCase('__FOO_BAR__');\n * // => 'FOO BAR'\n */\n var startCase = createCompounder(function(result, word, index) {\n return result + (index ? ' ' : '') + upperFirst(word);\n });\n\n /**\n * Checks if `string` starts with the given target string.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to inspect.\n * @param {string} [target] The string to search for.\n * @param {number} [position=0] The position to search from.\n * @returns {boolean} Returns `true` if `string` starts with `target`,\n * else `false`.\n * @example\n *\n * _.startsWith('abc', 'a');\n * // => true\n *\n * _.startsWith('abc', 'b');\n * // => false\n *\n * _.startsWith('abc', 'b', 1);\n * // => true\n */\n function startsWith(string, target, position) {\n string = toString(string);\n position = position == null\n ? 0\n : baseClamp(toInteger(position), 0, string.length);\n\n target = baseToString(target);\n return string.slice(position, position + target.length) == target;\n }\n\n /**\n * Creates a compiled template function that can interpolate data properties\n * in \"interpolate\" delimiters, HTML-escape interpolated data properties in\n * \"escape\" delimiters, and execute JavaScript in \"evaluate\" delimiters. Data\n * properties may be accessed as free variables in the template. If a setting\n * object is given, it takes precedence over `_.templateSettings` values.\n *\n * **Note:** In the development build `_.template` utilizes\n * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)\n * for easier debugging.\n *\n * For more information on precompiling templates see\n * [lodash's custom builds documentation](https://lodash.com/custom-builds).\n *\n * For more information on Chrome extension sandboxes see\n * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category String\n * @param {string} [string=''] The template string.\n * @param {Object} [options={}] The options object.\n * @param {RegExp} [options.escape=_.templateSettings.escape]\n * The HTML \"escape\" delimiter.\n * @param {RegExp} [options.evaluate=_.templateSettings.evaluate]\n * The \"evaluate\" delimiter.\n * @param {Object} [options.imports=_.templateSettings.imports]\n * An object to import into the template as free variables.\n * @param {RegExp} [options.interpolate=_.templateSettings.interpolate]\n * The \"interpolate\" delimiter.\n * @param {string} [options.sourceURL='lodash.templateSources[n]']\n * The sourceURL of the compiled template.\n * @param {string} [options.variable='obj']\n * The data object variable name.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the compiled template function.\n * @example\n *\n * // Use the \"interpolate\" delimiter to create a compiled template.\n * var compiled = _.template('hello <%= user %>!');\n * compiled({ 'user': 'fred' });\n * // => 'hello fred!'\n *\n * // Use the HTML \"escape\" delimiter to escape data property values.\n * var compiled = _.template('<%- value %> ');\n * compiled({ 'value': '
- * tag.transformation().crop("fit").width(300).toHtml()
- * // 
- */
- function toHtml() {
- var ref;
- return (ref = this.getParent()) != null ? typeof ref.toHtml === "function" ? ref.toHtml() : void 0 : void 0;
- }
- }, {
- key: "toString",
- value: function toString() {
- return this.serialize();
- }
- }, {
- key: "clone",
- value: function clone() {
- return new this.constructor(this.toOptions(true));
- }
- }], [{
- key: "listNames",
- value: function listNames() {
- return transformation_Transformation.methods;
- }
- }, {
- key: "isValidParamName",
- value: function isValidParamName(name) {
- return transformation_Transformation.methods.indexOf(camelCase(name)) >= 0;
- }
- }]);
-
- return TransformationBase;
-}();
-
-var VAR_NAME_RE = /^\$[a-zA-Z0-9]+$/;
-transformation_TransformationBase.prototype.trans_separator = '/';
-transformation_TransformationBase.prototype.param_separator = ',';
-
-function lastArgCallback(args) {
- var callback;
- callback = args != null ? args[args.length - 1] : void 0;
-
- if (isFunction_root_isFunction_default()(callback)) {
- return callback;
- } else {
- return void 0;
- }
-}
-
-function processVar(varArray) {
- var j, len, name, results, v;
+/***/ 6510:
+/***/ ((module) => {
- if (isArray_root_isArray_default()(varArray)) {
- results = [];
+// Based on CGI::unescape. In addition does not escape / :
+// smart_escape = (string) => encodeURIComponent(string).replace(/%3A/g, ":").replace(/%2F/g, "/")
+function smart_escape(string, unsafe = /([^a-zA-Z0-9_.\-\/:]+)/g) {
+ return string.replace(unsafe, function (match) {
+ return match.split("").map(function (c) {
+ return "%" + c.charCodeAt(0).toString(16).toUpperCase();
+ }).join("");
+ });
+}
- for (j = 0, len = varArray.length; j < len; j++) {
- var _varArray$j = transformation_slicedToArray(varArray[j], 2);
+module.exports = smart_escape;
- name = _varArray$j[0];
- v = _varArray$j[1];
- results.push("".concat(name, "_").concat(expression.normalize(v)));
- }
- return results;
- } else {
- return varArray;
- }
-}
+/***/ }),
-function processCustomFunction(_ref) {
- var function_type = _ref.function_type,
- source = _ref.source;
+/***/ 6547:
+/***/ ((module) => {
- if (function_type === 'remote') {
- return [function_type, btoa(source)].join(":");
- } else if (function_type === 'wasm') {
- return [function_type, source].join(":");
- }
-}
/**
- * Transformation Class methods.
- * This is a list of the parameters defined in Transformation.
- * Values are camelCased.
- * @const Transformation.methods
+ * Returns an ensureOption function that relies on the provided `defaultOptions` argument
+ * for default values.
* @private
- * @ignore
- * @type {Array