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main.bundle.js
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/******/ (function(modules) { // webpackBootstrap
/******/ // The module cache
/******/ var installedModules = {};
/******/ // The require function
/******/ function __webpack_require__(moduleId) {
/******/ // Check if module is in cache
/******/ if(installedModules[moduleId])
/******/ return installedModules[moduleId].exports;
/******/ // Create a new module (and put it into the cache)
/******/ var module = installedModules[moduleId] = {
/******/ exports: {},
/******/ id: moduleId,
/******/ loaded: false
/******/ };
/******/ // Execute the module function
/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/ // Flag the module as loaded
/******/ module.loaded = true;
/******/ // Return the exports of the module
/******/ return module.exports;
/******/ }
/******/ // expose the modules object (__webpack_modules__)
/******/ __webpack_require__.m = modules;
/******/ // expose the module cache
/******/ __webpack_require__.c = installedModules;
/******/ // __webpack_public_path__
/******/ __webpack_require__.p = "";
/******/ // Load entry module and return exports
/******/ return __webpack_require__(0);
/******/ })
/************************************************************************/
/******/ ([
/* 0 */
/***/ function(module, exports, __webpack_require__) {
'use strict';
__webpack_require__(1);
__webpack_require__(6);
__webpack_require__(13);
__webpack_require__(3);
__webpack_require__(7);
__webpack_require__(8);
__webpack_require__(2);
/***/ },
/* 1 */
/***/ function(module, exports, __webpack_require__) {
'use strict';
var _ = __webpack_require__(4);
var jShape = __webpack_require__(7);
var oShape = __webpack_require__(8);
var iShape = __webpack_require__(9);
var lShape = __webpack_require__(2);
var tShape = __webpack_require__(10);
var sShape = __webpack_require__(11);
var zShape = __webpack_require__(12);
var shapes = [jShape, oShape, iShape, lShape, tShape, sShape, zShape];
// var shape = _.sample(shapes);
function Board(rows, columns) {
this.rows = rows || 20;
this.cols = columns || 10;
this.pieces = [];
this.score = 0;
this.gameOver = false;
this.nextShape = _.sample(shapes);
}
Board.prototype.generateShape = function () {
// Stop the game if there's no room for a new piece
if (this.isOccupied(5, 2) || this.isOccupied(4, 2) || this.isOccupied(6, 2)) {
this.gameOver = true;
}
var CurrentShape = this.nextShape;
this.nextShape = _.sample(shapes);
return new CurrentShape(this);
};
// Pieces that are part of a shape will be excluded from isOccupied
Board.prototype.isLocked = function (xPos, yPos) {
var piece = _.find(this.pieces, function (piece) {
return piece.xPos === xPos && piece.yPos === yPos;
});
return piece.locked;
};
Board.prototype.isOccupied = function (xPos, yPos) {
return _.any(this.pieces, function (piece) {
return piece.xPos === xPos && piece.yPos === yPos;
});
};
Board.prototype.isValidPosition = function (xPos, yPos) {
return xPos < this.cols && xPos >= 0 && yPos < this.rows && yPos >= 0;
};
// This has a function within a loop, but i'm not sure how else to do it
Board.prototype.checkRows = function () {
var newScore = 0;
var scoreModifier = 1;
for (var row = 0; row < this.rows; row++) {
// Find all pieces within a given row
var checkRow = _.filter(this.pieces, function (piece) {
return piece.yPos === row;
});
// Clear the row if it's full
if (checkRow.length >= this.cols) {
this.clearRow(row);
newScore += 1;
scoreModifier += 0.75;
}
}
this.score += newScore * Math.round(scoreModifier);
};
Board.prototype.clearRow = function (rowNumber) {
this.pieces = _.reject(this.pieces, function (piece) {
return piece.yPos === rowNumber;
});
var piecesToShiftDown = _.filter(this.pieces, function (piece) {
return piece.yPos < rowNumber;
});
// Shift piece above cleared row downward
_.each(piecesToShiftDown, function (piece) {
piece.yPos += 1;
});
};
Board.prototype.draw = function (context) {
_.each(this.pieces, function (piece) {
context.fillStyle = piece.color;
context.fillRect(piece.xPos * 30 - 1, piece.yPos * 30 + 1, 30, 30);
context.lineWidth = '0.5';
context.strokeStyle = 'black';
context.strokeRect(piece.xPos * 30 - 1, piece.yPos * 30 + 1, 30, 30);
});
};
module.exports = Board;
/***/ },
/* 2 */
/***/ function(module, exports, __webpack_require__) {
'use strict';
var Shape = __webpack_require__(3);
var Piece = __webpack_require__(6);
function lShape(board) {
this.name = 'lShape';
this.pieces = {
1: new Piece(board, 6, 0, '#16a80b'),
2: new Piece(board, 6, 1, '#16a80b'),
3: new Piece(board, 5, 1, '#16a80b'),
4: new Piece(board, 4, 1, '#16a80b')
};
// Defaults to the first set of offset rotations
this.offsetGroup = 1;
this.rotationOffsets = {
1: {
1: [-2, 0],
2: [-1, -1],
3: [0, 0],
4: [1, 1]
},
2: {
1: [0, 1],
2: [-1, 0],
3: [0, -1],
4: [1, -2]
},
3: {
1: [2, 1],
2: [1, 2],
3: [0, 1],
4: [-1, 0]
},
4: {
1: [0, -2],
2: [1, -1],
3: [0, 0],
4: [-1, 1]
}
};
}
lShape.prototype = Object.create(Shape.prototype);
module.exports = lShape;
/***/ },
/* 3 */
/***/ function(module, exports, __webpack_require__) {
'use strict';
var _ = __webpack_require__(4);
function Shape() {}
Shape.prototype.canMoveDown = function () {
return _.every(this.pieces, function (piece) {
return piece.canMoveDown();
});
};
// Move Down
Shape.prototype.moveDown = function () {
if (this.canMoveDown()) {
_.each(this.pieces, function (piece) {
// note: this and
piece.moveDown(); // this work without returns
});
} else {
this.lockPieces();
}
};
// Move Left
Shape.prototype.canMoveLeft = function () {
return _.every(this.pieces, function (piece) {
return piece.canMoveLeft();
});
};
Shape.prototype.moveLeft = function () {
if (this.canMoveLeft()) {
_.each(this.pieces, function (piece) {
piece.moveLeft();
});
}
};
// Move Right
Shape.prototype.canMoveRight = function () {
return _.every(this.pieces, function (piece) {
return piece.canMoveRight();
});
};
Shape.prototype.moveRight = function () {
if (this.canMoveRight()) {
_.each(this.pieces, function (piece) {
piece.moveRight();
});
}
};
// Lock position of a shape's pieces
Shape.prototype.lockPieces = function () {
_.each(this.pieces, function (piece) {
piece.locked = true;
});
};
// Rotate
Shape.prototype.canRotate = function () {
var offsetGroup = this.rotationOffsets[this.offsetGroup];
return _.every(this.pieces, function (piece, index) {
var newX = offsetGroup[index][0];
var newY = offsetGroup[index][1];
return piece.canRotateTo(newX, newY);
});
};
Shape.prototype.rotate = function () {
if (this.canRotate()) {
var offsetGroup = this.rotationOffsets[this.offsetGroup];
_.each(this.pieces, function (piece, index) {
// Index here represents the current piece it's
// modifying in the rotationOffsets group
piece.xPos += offsetGroup[index][0]; // Possible refactor?
piece.yPos += offsetGroup[index][1];
});
// Reset the offsetGroup
this.offsetGroup += 1;
if (this.offsetGroup > 4) {
this.offsetGroup = 1;
}
}
};
module.exports = Shape;
/***/ },
/* 4 */
/***/ function(module, exports, __webpack_require__) {
var __WEBPACK_AMD_DEFINE_RESULT__;/* WEBPACK VAR INJECTION */(function(module, global) {/**
* @license
* lodash 3.10.0 (Custom Build) <https://lodash.com/>
* Build: `lodash modern -d -o ./index.js`
* Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
* Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
* Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
* Available under MIT license <https://lodash.com/license>
*/'use strict';;(function(){ /** Used as a safe reference for `undefined` in pre-ES5 environments. */var undefined; /** Used as the semantic version number. */var VERSION='3.10.0'; /** Used to compose bitmasks for wrapper metadata. */var BIND_FLAG=1,BIND_KEY_FLAG=2,CURRY_BOUND_FLAG=4,CURRY_FLAG=8,CURRY_RIGHT_FLAG=16,PARTIAL_FLAG=32,PARTIAL_RIGHT_FLAG=64,ARY_FLAG=128,REARG_FLAG=256; /** Used as default options for `_.trunc`. */var DEFAULT_TRUNC_LENGTH=30,DEFAULT_TRUNC_OMISSION='...'; /** Used to detect when a function becomes hot. */var HOT_COUNT=150,HOT_SPAN=16; /** Used as the size to enable large array optimizations. */var LARGE_ARRAY_SIZE=200; /** Used to indicate the type of lazy iteratees. */var LAZY_FILTER_FLAG=1,LAZY_MAP_FLAG=2; /** Used as the `TypeError` message for "Functions" methods. */var FUNC_ERROR_TEXT='Expected a function'; /** Used as the internal argument placeholder. */var PLACEHOLDER='__lodash_placeholder__'; /** `Object#toString` result references. */var argsTag='[object Arguments]',arrayTag='[object Array]',boolTag='[object Boolean]',dateTag='[object Date]',errorTag='[object Error]',funcTag='[object Function]',mapTag='[object Map]',numberTag='[object Number]',objectTag='[object Object]',regexpTag='[object RegExp]',setTag='[object Set]',stringTag='[object String]',weakMapTag='[object WeakMap]';var arrayBufferTag='[object ArrayBuffer]',float32Tag='[object Float32Array]',float64Tag='[object Float64Array]',int8Tag='[object Int8Array]',int16Tag='[object Int16Array]',int32Tag='[object Int32Array]',uint8Tag='[object Uint8Array]',uint8ClampedTag='[object Uint8ClampedArray]',uint16Tag='[object Uint16Array]',uint32Tag='[object Uint32Array]'; /** Used to match empty string literals in compiled template source. */var reEmptyStringLeading=/\b__p \+= '';/g,reEmptyStringMiddle=/\b(__p \+=) '' \+/g,reEmptyStringTrailing=/(__e\(.*?\)|\b__t\)) \+\n'';/g; /** Used to match HTML entities and HTML characters. */var reEscapedHtml=/&(?:amp|lt|gt|quot|#39|#96);/g,reUnescapedHtml=/[&<>"'`]/g,reHasEscapedHtml=RegExp(reEscapedHtml.source),reHasUnescapedHtml=RegExp(reUnescapedHtml.source); /** Used to match template delimiters. */var reEscape=/<%-([\s\S]+?)%>/g,reEvaluate=/<%([\s\S]+?)%>/g,reInterpolate=/<%=([\s\S]+?)%>/g; /** Used to match property names within property paths. */var reIsDeepProp=/\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\n\\]|\\.)*?\1)\]/,reIsPlainProp=/^\w*$/,rePropName=/[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\n\\]|\\.)*?)\2)\]/g; /**
* Used to match `RegExp` [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns)
* and those outlined by [`EscapeRegExpPattern`](http://ecma-international.org/ecma-262/6.0/#sec-escaperegexppattern).
*/var reRegExpChars=/^[:!,]|[\\^$.*+?()[\]{}|\/]|(^[0-9a-fA-Fnrtuvx])|([\n\r\u2028\u2029])/g,reHasRegExpChars=RegExp(reRegExpChars.source); /** Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks). */var reComboMark=/[\u0300-\u036f\ufe20-\ufe23]/g; /** Used to match backslashes in property paths. */var reEscapeChar=/\\(\\)?/g; /** Used to match [ES template delimiters](http://ecma-international.org/ecma-262/6.0/#sec-template-literal-lexical-components). */var reEsTemplate=/\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g; /** Used to match `RegExp` flags from their coerced string values. */var reFlags=/\w*$/; /** Used to detect hexadecimal string values. */var reHasHexPrefix=/^0[xX]/; /** Used to detect host constructors (Safari > 5). */var reIsHostCtor=/^\[object .+?Constructor\]$/; /** Used to detect unsigned integer values. */var reIsUint=/^\d+$/; /** Used to match latin-1 supplementary letters (excluding mathematical operators). */var reLatin1=/[\xc0-\xd6\xd8-\xde\xdf-\xf6\xf8-\xff]/g; /** Used to ensure capturing order of template delimiters. */var reNoMatch=/($^)/; /** Used to match unescaped characters in compiled string literals. */var reUnescapedString=/['\n\r\u2028\u2029\\]/g; /** Used to match words to create compound words. */var reWords=(function(){var upper='[A-Z\\xc0-\\xd6\\xd8-\\xde]',lower='[a-z\\xdf-\\xf6\\xf8-\\xff]+';return RegExp(upper + '+(?=' + upper + lower + ')|' + upper + '?' + lower + '|' + upper + '+|[0-9]+','g');})(); /** Used to assign default `context` object properties. */var contextProps=['Array','ArrayBuffer','Date','Error','Float32Array','Float64Array','Function','Int8Array','Int16Array','Int32Array','Math','Number','Object','RegExp','Set','String','_','clearTimeout','isFinite','parseFloat','parseInt','setTimeout','TypeError','Uint8Array','Uint8ClampedArray','Uint16Array','Uint32Array','WeakMap']; /** Used to make template sourceURLs easier to identify. */var templateCounter=-1; /** Used to identify `toStringTag` values of typed arrays. */var typedArrayTags={};typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = typedArrayTags[uint32Tag] = true;typedArrayTags[argsTag] = typedArrayTags[arrayTag] = typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = typedArrayTags[dateTag] = typedArrayTags[errorTag] = typedArrayTags[funcTag] = typedArrayTags[mapTag] = typedArrayTags[numberTag] = typedArrayTags[objectTag] = typedArrayTags[regexpTag] = typedArrayTags[setTag] = typedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false; /** Used to identify `toStringTag` values supported by `_.clone`. */var cloneableTags={};cloneableTags[argsTag] = cloneableTags[arrayTag] = cloneableTags[arrayBufferTag] = cloneableTags[boolTag] = cloneableTags[dateTag] = cloneableTags[float32Tag] = cloneableTags[float64Tag] = cloneableTags[int8Tag] = cloneableTags[int16Tag] = cloneableTags[int32Tag] = cloneableTags[numberTag] = cloneableTags[objectTag] = cloneableTags[regexpTag] = cloneableTags[stringTag] = cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;cloneableTags[errorTag] = cloneableTags[funcTag] = cloneableTags[mapTag] = cloneableTags[setTag] = cloneableTags[weakMapTag] = false; /** Used to map latin-1 supplementary letters to basic latin letters. */var deburredLetters={'À':'A','Á':'A','Â':'A','Ã':'A','Ä':'A','Å':'A','à':'a','á':'a','â':'a','ã':'a','ä':'a','å':'a','Ç':'C','ç':'c','Ð':'D','ð':'d','È':'E','É':'E','Ê':'E','Ë':'E','è':'e','é':'e','ê':'e','ë':'e','Ì':'I','Í':'I','Î':'I','Ï':'I','ì':'i','í':'i','î':'i','ï':'i','Ñ':'N','ñ':'n','Ò':'O','Ó':'O','Ô':'O','Õ':'O','Ö':'O','Ø':'O','ò':'o','ó':'o','ô':'o','õ':'o','ö':'o','ø':'o','Ù':'U','Ú':'U','Û':'U','Ü':'U','ù':'u','ú':'u','û':'u','ü':'u','Ý':'Y','ý':'y','ÿ':'y','Æ':'Ae','æ':'ae','Þ':'Th','þ':'th','ß':'ss'}; /** Used to map characters to HTML entities. */var htmlEscapes={'&':'&','<':'<','>':'>','"':'"','\'':''','`':'`'}; /** Used to map HTML entities to characters. */var htmlUnescapes={'&':'&','<':'<','>':'>','"':'"',''':'\'','`':'`'}; /** Used to determine if values are of the language type `Object`. */var objectTypes={'function':true,'object':true}; /** Used to escape characters for inclusion in compiled regexes. */var regexpEscapes={'0':'x30','1':'x31','2':'x32','3':'x33','4':'x34','5':'x35','6':'x36','7':'x37','8':'x38','9':'x39','A':'x41','B':'x42','C':'x43','D':'x44','E':'x45','F':'x46','a':'x61','b':'x62','c':'x63','d':'x64','e':'x65','f':'x66','n':'x6e','r':'x72','t':'x74','u':'x75','v':'x76','x':'x78'}; /** Used to escape characters for inclusion in compiled string literals. */var stringEscapes={'\\':'\\','\'':'\'','\n':'n','\r':'r','\u2028':'u2028','\u2029':'u2029'}; /** Detect free variable `exports`. */var freeExports=objectTypes[typeof exports] && exports && !exports.nodeType && exports; /** Detect free variable `module`. */var freeModule=objectTypes[typeof module] && module && !module.nodeType && module; /** Detect free variable `global` from Node.js. */var freeGlobal=freeExports && freeModule && typeof global == 'object' && global && global.Object && global; /** Detect free variable `self`. */var freeSelf=objectTypes[typeof self] && self && self.Object && self; /** Detect free variable `window`. */var freeWindow=objectTypes[typeof window] && window && window.Object && window; /** Detect the popular CommonJS extension `module.exports`. */var moduleExports=freeModule && freeModule.exports === freeExports && freeExports; /**
* Used as a reference to the global object.
*
* The `this` value is used if it's the global object to avoid Greasemonkey's
* restricted `window` object, otherwise the `window` object is used.
*/var root=freeGlobal || freeWindow !== (this && this.window) && freeWindow || freeSelf || this; /*--------------------------------------------------------------------------*/ /**
* The base implementation of `compareAscending` which compares values and
* sorts them in ascending order without guaranteeing a stable sort.
*
* @private
* @param {*} value The value to compare.
* @param {*} other The other value to compare.
* @returns {number} Returns the sort order indicator for `value`.
*/function baseCompareAscending(value,other){if(value !== other){var valIsNull=value === null,valIsUndef=value === undefined,valIsReflexive=value === value;var othIsNull=other === null,othIsUndef=other === undefined,othIsReflexive=other === other;if(value > other && !othIsNull || !valIsReflexive || valIsNull && !othIsUndef && othIsReflexive || valIsUndef && othIsReflexive){return 1;}if(value < other && !valIsNull || !othIsReflexive || othIsNull && !valIsUndef && valIsReflexive || othIsUndef && valIsReflexive){return -1;}}return 0;} /**
* The base implementation of `_.findIndex` and `_.findLastIndex` without
* support for callback shorthands and `this` binding.
*
* @private
* @param {Array} array The array to search.
* @param {Function} predicate The function invoked per iteration.
* @param {boolean} [fromRight] Specify iterating from right to left.
* @returns {number} Returns the index of the matched value, else `-1`.
*/function baseFindIndex(array,predicate,fromRight){var length=array.length,index=fromRight?length:-1;while(fromRight?index--:++index < length) {if(predicate(array[index],index,array)){return index;}}return -1;} /**
* The base implementation of `_.indexOf` without support for binary searches.
*
* @private
* @param {Array} array The array to search.
* @param {*} value The value to search for.
* @param {number} fromIndex The index to search from.
* @returns {number} Returns the index of the matched value, else `-1`.
*/function baseIndexOf(array,value,fromIndex){if(value !== value){return indexOfNaN(array,fromIndex);}var index=fromIndex - 1,length=array.length;while(++index < length) {if(array[index] === value){return index;}}return -1;} /**
* The base implementation of `_.isFunction` without support for environments
* with incorrect `typeof` results.
*
* @private
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
*/function baseIsFunction(value){ // Avoid a Chakra JIT bug in compatibility modes of IE 11.
// See https://github.com/jashkenas/underscore/issues/1621 for more details.
return typeof value == 'function' || false;} /**
* Converts `value` to a string if it's not one. An empty string is returned
* for `null` or `undefined` values.
*
* @private
* @param {*} value The value to process.
* @returns {string} Returns the string.
*/function baseToString(value){return value == null?'':value + '';} /**
* Used by `_.trim` and `_.trimLeft` to get the index of the first character
* of `string` that is not found in `chars`.
*
* @private
* @param {string} string The string to inspect.
* @param {string} chars The characters to find.
* @returns {number} Returns the index of the first character not found in `chars`.
*/function charsLeftIndex(string,chars){var index=-1,length=string.length;while(++index < length && chars.indexOf(string.charAt(index)) > -1) {}return index;} /**
* Used by `_.trim` and `_.trimRight` to get the index of the last character
* of `string` that is not found in `chars`.
*
* @private
* @param {string} string The string to inspect.
* @param {string} chars The characters to find.
* @returns {number} Returns the index of the last character not found in `chars`.
*/function charsRightIndex(string,chars){var index=string.length;while(index-- && chars.indexOf(string.charAt(index)) > -1) {}return index;} /**
* Used by `_.sortBy` to compare transformed elements of a collection and stable
* sort them in ascending order.
*
* @private
* @param {Object} object The object to compare.
* @param {Object} other The other object to compare.
* @returns {number} Returns the sort order indicator for `object`.
*/function compareAscending(object,other){return baseCompareAscending(object.criteria,other.criteria) || object.index - other.index;} /**
* Used by `_.sortByOrder` to compare multiple properties of a value to another
* and stable sort them.
*
* If `orders` is unspecified, all valuess are sorted in ascending order. Otherwise,
* a value is sorted in ascending order if its corresponding order is "asc", and
* descending if "desc".
*
* @private
* @param {Object} object The object to compare.
* @param {Object} other The other object to compare.
* @param {boolean[]} orders The order to sort by for each property.
* @returns {number} Returns the sort order indicator for `object`.
*/function compareMultiple(object,other,orders){var index=-1,objCriteria=object.criteria,othCriteria=other.criteria,length=objCriteria.length,ordersLength=orders.length;while(++index < length) {var result=baseCompareAscending(objCriteria[index],othCriteria[index]);if(result){if(index >= ordersLength){return result;}var order=orders[index];return result * (order === 'asc' || order === true?1:-1);}} // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
// that causes it, under certain circumstances, to provide the same value for
// `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247
// for more details.
//
// This also ensures a stable sort in V8 and other engines.
// See https://code.google.com/p/v8/issues/detail?id=90 for more details.
return object.index - other.index;} /**
* Used by `_.deburr` to convert latin-1 supplementary letters to basic latin letters.
*
* @private
* @param {string} letter The matched letter to deburr.
* @returns {string} Returns the deburred letter.
*/function deburrLetter(letter){return deburredLetters[letter];} /**
* Used by `_.escape` to convert characters to HTML entities.
*
* @private
* @param {string} chr The matched character to escape.
* @returns {string} Returns the escaped character.
*/function escapeHtmlChar(chr){return htmlEscapes[chr];} /**
* Used by `_.escapeRegExp` to escape characters for inclusion in compiled regexes.
*
* @private
* @param {string} chr The matched character to escape.
* @param {string} leadingChar The capture group for a leading character.
* @param {string} whitespaceChar The capture group for a whitespace character.
* @returns {string} Returns the escaped character.
*/function escapeRegExpChar(chr,leadingChar,whitespaceChar){if(leadingChar){chr = regexpEscapes[chr];}else if(whitespaceChar){chr = stringEscapes[chr];}return '\\' + chr;} /**
* Used by `_.template` to escape characters for inclusion in compiled string literals.
*
* @private
* @param {string} chr The matched character to escape.
* @returns {string} Returns the escaped character.
*/function escapeStringChar(chr){return '\\' + stringEscapes[chr];} /**
* Gets the index at which the first occurrence of `NaN` is found in `array`.
*
* @private
* @param {Array} array The array to search.
* @param {number} fromIndex The index to search from.
* @param {boolean} [fromRight] Specify iterating from right to left.
* @returns {number} Returns the index of the matched `NaN`, else `-1`.
*/function indexOfNaN(array,fromIndex,fromRight){var length=array.length,index=fromIndex + (fromRight?0:-1);while(fromRight?index--:++index < length) {var other=array[index];if(other !== other){return index;}}return -1;} /**
* Checks if `value` is object-like.
*
* @private
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is object-like, else `false`.
*/function isObjectLike(value){return !!value && typeof value == 'object';} /**
* Used by `trimmedLeftIndex` and `trimmedRightIndex` to determine if a
* character code is whitespace.
*
* @private
* @param {number} charCode The character code to inspect.
* @returns {boolean} Returns `true` if `charCode` is whitespace, else `false`.
*/function isSpace(charCode){return charCode <= 160 && (charCode >= 9 && charCode <= 13) || charCode == 32 || charCode == 160 || charCode == 5760 || charCode == 6158 || charCode >= 8192 && (charCode <= 8202 || charCode == 8232 || charCode == 8233 || charCode == 8239 || charCode == 8287 || charCode == 12288 || charCode == 65279);} /**
* Replaces all `placeholder` elements in `array` with an internal placeholder
* and returns an array of their indexes.
*
* @private
* @param {Array} array The array to modify.
* @param {*} placeholder The placeholder to replace.
* @returns {Array} Returns the new array of placeholder indexes.
*/function replaceHolders(array,placeholder){var index=-1,length=array.length,resIndex=-1,result=[];while(++index < length) {if(array[index] === placeholder){array[index] = PLACEHOLDER;result[++resIndex] = index;}}return result;} /**
* An implementation of `_.uniq` optimized for sorted arrays without support
* for callback shorthands and `this` binding.
*
* @private
* @param {Array} array The array to inspect.
* @param {Function} [iteratee] The function invoked per iteration.
* @returns {Array} Returns the new duplicate-value-free array.
*/function sortedUniq(array,iteratee){var seen,index=-1,length=array.length,resIndex=-1,result=[];while(++index < length) {var value=array[index],computed=iteratee?iteratee(value,index,array):value;if(!index || seen !== computed){seen = computed;result[++resIndex] = value;}}return result;} /**
* Used by `_.trim` and `_.trimLeft` to get the index of the first non-whitespace
* character of `string`.
*
* @private
* @param {string} string The string to inspect.
* @returns {number} Returns the index of the first non-whitespace character.
*/function trimmedLeftIndex(string){var index=-1,length=string.length;while(++index < length && isSpace(string.charCodeAt(index))) {}return index;} /**
* Used by `_.trim` and `_.trimRight` to get the index of the last non-whitespace
* character of `string`.
*
* @private
* @param {string} string The string to inspect.
* @returns {number} Returns the index of the last non-whitespace character.
*/function trimmedRightIndex(string){var index=string.length;while(index-- && isSpace(string.charCodeAt(index))) {}return index;} /**
* Used by `_.unescape` to convert HTML entities to characters.
*
* @private
* @param {string} chr The matched character to unescape.
* @returns {string} Returns the unescaped character.
*/function unescapeHtmlChar(chr){return htmlUnescapes[chr];} /*--------------------------------------------------------------------------*/ /**
* Create a new pristine `lodash` function using the given `context` object.
*
* @static
* @memberOf _
* @category Utility
* @param {Object} [context=root] The context object.
* @returns {Function} Returns a new `lodash` function.
* @example
*
* _.mixin({ 'foo': _.constant('foo') });
*
* var lodash = _.runInContext();
* lodash.mixin({ 'bar': lodash.constant('bar') });
*
* _.isFunction(_.foo);
* // => true
* _.isFunction(_.bar);
* // => false
*
* lodash.isFunction(lodash.foo);
* // => false
* lodash.isFunction(lodash.bar);
* // => true
*
* // using `context` to mock `Date#getTime` use in `_.now`
* var mock = _.runInContext({
* 'Date': function() {
* return { 'getTime': getTimeMock };
* }
* });
*
* // or creating a suped-up `defer` in Node.js
* var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;
*/function runInContext(context){ // Avoid issues with some ES3 environments that attempt to use values, named
// after built-in constructors like `Object`, for the creation of literals.
// ES5 clears this up by stating that literals must use built-in constructors.
// See https://es5.github.io/#x11.1.5 for more details.
context = context?_.defaults(root.Object(),context,_.pick(root,contextProps)):root; /** Native constructor references. */var Array=context.Array,Date=context.Date,Error=context.Error,Function=context.Function,Math=context.Math,Number=context.Number,Object=context.Object,RegExp=context.RegExp,String=context.String,TypeError=context.TypeError; /** Used for native method references. */var arrayProto=Array.prototype,objectProto=Object.prototype,stringProto=String.prototype; /** Used to resolve the decompiled source of functions. */var fnToString=Function.prototype.toString; /** Used to check objects for own properties. */var hasOwnProperty=objectProto.hasOwnProperty; /** Used to generate unique IDs. */var idCounter=0; /**
* Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
* of values.
*/var objToString=objectProto.toString; /** Used to restore the original `_` reference in `_.noConflict`. */var oldDash=root._; /** Used to detect if a method is native. */var reIsNative=RegExp('^' + fnToString.call(hasOwnProperty).replace(/[\\^$.*+?()[\]{}|]/g,'\\$&').replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g,'$1.*?') + '$'); /** Native method references. */var ArrayBuffer=context.ArrayBuffer,clearTimeout=context.clearTimeout,parseFloat=context.parseFloat,pow=Math.pow,propertyIsEnumerable=objectProto.propertyIsEnumerable,Set=getNative(context,'Set'),setTimeout=context.setTimeout,splice=arrayProto.splice,Uint8Array=context.Uint8Array,WeakMap=getNative(context,'WeakMap'); /* Native method references for those with the same name as other `lodash` methods. */var nativeCeil=Math.ceil,nativeCreate=getNative(Object,'create'),nativeFloor=Math.floor,nativeIsArray=getNative(Array,'isArray'),nativeIsFinite=context.isFinite,nativeKeys=getNative(Object,'keys'),nativeMax=Math.max,nativeMin=Math.min,nativeNow=getNative(Date,'now'),nativeParseInt=context.parseInt,nativeRandom=Math.random; /** Used as references for `-Infinity` and `Infinity`. */var NEGATIVE_INFINITY=Number.NEGATIVE_INFINITY,POSITIVE_INFINITY=Number.POSITIVE_INFINITY; /** Used as references for the maximum length and index of an array. */var MAX_ARRAY_LENGTH=4294967295,MAX_ARRAY_INDEX=MAX_ARRAY_LENGTH - 1,HALF_MAX_ARRAY_LENGTH=MAX_ARRAY_LENGTH >>> 1; /**
* Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)
* of an array-like value.
*/var MAX_SAFE_INTEGER=9007199254740991; /** Used to store function metadata. */var metaMap=WeakMap && new WeakMap(); /** Used to lookup unminified function names. */var realNames={}; /*------------------------------------------------------------------------*/ /**
* Creates a `lodash` object which wraps `value` to enable implicit chaining.
* Methods that operate on and return arrays, collections, and functions can
* be chained together. Methods that retrieve a single value or may return a
* primitive value will automatically end the chain returning the unwrapped
* value. Explicit chaining may be enabled using `_.chain`. The execution of
* chained methods is lazy, that is, execution is deferred until `_#value`
* is implicitly or explicitly called.
*
* Lazy evaluation allows several methods to support shortcut fusion. Shortcut
* fusion is an optimization strategy which merge iteratee calls; this can help
* to avoid the creation of intermediate data structures and greatly reduce the
* number of iteratee executions.
*
* Chaining is supported in custom builds as long as the `_#value` method is
* directly or indirectly included in the build.
*
* In addition to lodash methods, wrappers have `Array` and `String` methods.
*
* The wrapper `Array` methods are:
* `concat`, `join`, `pop`, `push`, `reverse`, `shift`, `slice`, `sort`,
* `splice`, and `unshift`
*
* The wrapper `String` methods are:
* `replace` and `split`
*
* The wrapper methods that support shortcut fusion are:
* `compact`, `drop`, `dropRight`, `dropRightWhile`, `dropWhile`, `filter`,
* `first`, `initial`, `last`, `map`, `pluck`, `reject`, `rest`, `reverse`,
* `slice`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, `toArray`,
* and `where`
*
* The chainable wrapper methods are:
* `after`, `ary`, `assign`, `at`, `before`, `bind`, `bindAll`, `bindKey`,
* `callback`, `chain`, `chunk`, `commit`, `compact`, `concat`, `constant`,
* `countBy`, `create`, `curry`, `debounce`, `defaults`, `defaultsDeep`,
* `defer`, `delay`, `difference`, `drop`, `dropRight`, `dropRightWhile`,
* `dropWhile`, `fill`, `filter`, `flatten`, `flattenDeep`, `flow`, `flowRight`,
* `forEach`, `forEachRight`, `forIn`, `forInRight`, `forOwn`, `forOwnRight`,
* `functions`, `groupBy`, `indexBy`, `initial`, `intersection`, `invert`,
* `invoke`, `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`,
* `matchesProperty`, `memoize`, `merge`, `method`, `methodOf`, `mixin`,
* `modArgs`, `negate`, `omit`, `once`, `pairs`, `partial`, `partialRight`,
* `partition`, `pick`, `plant`, `pluck`, `property`, `propertyOf`, `pull`,
* `pullAt`, `push`, `range`, `rearg`, `reject`, `remove`, `rest`, `restParam`,
* `reverse`, `set`, `shuffle`, `slice`, `sort`, `sortBy`, `sortByAll`,
* `sortByOrder`, `splice`, `spread`, `take`, `takeRight`, `takeRightWhile`,
* `takeWhile`, `tap`, `throttle`, `thru`, `times`, `toArray`, `toPlainObject`,
* `transform`, `union`, `uniq`, `unshift`, `unzip`, `unzipWith`, `values`,
* `valuesIn`, `where`, `without`, `wrap`, `xor`, `zip`, `zipObject`, `zipWith`
*
* The wrapper methods that are **not** chainable by default are:
* `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clone`, `cloneDeep`,
* `deburr`, `endsWith`, `escape`, `escapeRegExp`, `every`, `find`, `findIndex`,
* `findKey`, `findLast`, `findLastIndex`, `findLastKey`, `findWhere`, `first`,
* `floor`, `get`, `gt`, `gte`, `has`, `identity`, `includes`, `indexOf`,
* `inRange`, `isArguments`, `isArray`, `isBoolean`, `isDate`, `isElement`,
* `isEmpty`, `isEqual`, `isError`, `isFinite` `isFunction`, `isMatch`,
* `isNative`, `isNaN`, `isNull`, `isNumber`, `isObject`, `isPlainObject`,
* `isRegExp`, `isString`, `isUndefined`, `isTypedArray`, `join`, `kebabCase`,
* `last`, `lastIndexOf`, `lt`, `lte`, `max`, `min`, `noConflict`, `noop`,
* `now`, `pad`, `padLeft`, `padRight`, `parseInt`, `pop`, `random`, `reduce`,
* `reduceRight`, `repeat`, `result`, `round`, `runInContext`, `shift`, `size`,
* `snakeCase`, `some`, `sortedIndex`, `sortedLastIndex`, `startCase`,
* `startsWith`, `sum`, `template`, `trim`, `trimLeft`, `trimRight`, `trunc`,
* `unescape`, `uniqueId`, `value`, and `words`
*
* The wrapper method `sample` will return a wrapped value when `n` is provided,
* otherwise an unwrapped value is returned.
*
* @name _
* @constructor
* @category Chain
* @param {*} value The value to wrap in a `lodash` instance.
* @returns {Object} Returns the new `lodash` wrapper instance.
* @example
*
* var wrapped = _([1, 2, 3]);
*
* // returns an unwrapped value
* wrapped.reduce(function(total, n) {
* return total + n;
* });
* // => 6
*
* // returns a wrapped value
* var squares = wrapped.map(function(n) {
* return n * n;
* });
*
* _.isArray(squares);
* // => false
*
* _.isArray(squares.value());
* // => true
*/function lodash(value){if(isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)){if(value instanceof LodashWrapper){return value;}if(hasOwnProperty.call(value,'__chain__') && hasOwnProperty.call(value,'__wrapped__')){return wrapperClone(value);}}return new LodashWrapper(value);} /**
* The function whose prototype all chaining wrappers inherit from.
*
* @private
*/function baseLodash(){} /**
* The base constructor for creating `lodash` wrapper objects.
*
* @private
* @param {*} value The value to wrap.
* @param {boolean} [chainAll] Enable chaining for all wrapper methods.
* @param {Array} [actions=[]] Actions to peform to resolve the unwrapped value.
*/function LodashWrapper(value,chainAll,actions){this.__wrapped__ = value;this.__actions__ = actions || [];this.__chain__ = !!chainAll;} /**
* An object environment feature flags.
*
* @static
* @memberOf _
* @type Object
*/var support=lodash.support = {}; /**
* By default, the template delimiters used by lodash are like those in
* embedded Ruby (ERB). Change the following template settings to use
* alternative delimiters.
*
* @static
* @memberOf _
* @type Object
*/lodash.templateSettings = { /**
* Used to detect `data` property values to be HTML-escaped.
*
* @memberOf _.templateSettings
* @type RegExp
*/'escape':reEscape, /**
* Used to detect code to be evaluated.
*
* @memberOf _.templateSettings
* @type RegExp
*/'evaluate':reEvaluate, /**
* Used to detect `data` property values to inject.
*
* @memberOf _.templateSettings
* @type RegExp
*/'interpolate':reInterpolate, /**
* Used to reference the data object in the template text.
*
* @memberOf _.templateSettings
* @type string
*/'variable':'', /**
* Used to import variables into the compiled template.
*
* @memberOf _.templateSettings
* @type Object
*/'imports':{ /**
* A reference to the `lodash` function.
*
* @memberOf _.templateSettings.imports
* @type Function
*/'_':lodash}}; /*------------------------------------------------------------------------*/ /**
* Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.
*
* @private
* @param {*} value The value to wrap.
*/function LazyWrapper(value){this.__wrapped__ = value;this.__actions__ = [];this.__dir__ = 1;this.__filtered__ = false;this.__iteratees__ = [];this.__takeCount__ = POSITIVE_INFINITY;this.__views__ = [];} /**
* Creates a clone of the lazy wrapper object.
*
* @private
* @name clone
* @memberOf LazyWrapper
* @returns {Object} Returns the cloned `LazyWrapper` object.
*/function lazyClone(){var result=new LazyWrapper(this.__wrapped__);result.__actions__ = arrayCopy(this.__actions__);result.__dir__ = this.__dir__;result.__filtered__ = this.__filtered__;result.__iteratees__ = arrayCopy(this.__iteratees__);result.__takeCount__ = this.__takeCount__;result.__views__ = arrayCopy(this.__views__);return result;} /**
* Reverses the direction of lazy iteration.
*
* @private
* @name reverse
* @memberOf LazyWrapper
* @returns {Object} Returns the new reversed `LazyWrapper` object.
*/function lazyReverse(){if(this.__filtered__){var result=new LazyWrapper(this);result.__dir__ = -1;result.__filtered__ = true;}else {result = this.clone();result.__dir__ *= -1;}return result;} /**
* Extracts the unwrapped value from its lazy wrapper.
*
* @private
* @name value
* @memberOf LazyWrapper
* @returns {*} Returns the unwrapped value.
*/function lazyValue(){var array=this.__wrapped__.value(),dir=this.__dir__,isArr=isArray(array),isRight=dir < 0,arrLength=isArr?array.length:0,view=getView(0,arrLength,this.__views__),start=view.start,end=view.end,length=end - start,index=isRight?end:start - 1,iteratees=this.__iteratees__,iterLength=iteratees.length,resIndex=0,takeCount=nativeMin(length,this.__takeCount__);if(!isArr || arrLength < LARGE_ARRAY_SIZE || arrLength == length && takeCount == length){return baseWrapperValue(isRight && isArr?array.reverse():array,this.__actions__);}var result=[];outer: while(length-- && resIndex < takeCount) {index += dir;var iterIndex=-1,value=array[index];while(++iterIndex < iterLength) {var data=iteratees[iterIndex],iteratee=data.iteratee,type=data.type,computed=iteratee(value);if(type == LAZY_MAP_FLAG){value = computed;}else if(!computed){if(type == LAZY_FILTER_FLAG){continue outer;}else {break outer;}}}result[resIndex++] = value;}return result;} /*------------------------------------------------------------------------*/ /**
* Creates a cache object to store key/value pairs.
*
* @private
* @static
* @name Cache
* @memberOf _.memoize
*/function MapCache(){this.__data__ = {};} /**
* Removes `key` and its value from the cache.
*
* @private
* @name delete
* @memberOf _.memoize.Cache
* @param {string} key The key of the value to remove.
* @returns {boolean} Returns `true` if the entry was removed successfully, else `false`.
*/function mapDelete(key){return this.has(key) && delete this.__data__[key];} /**
* Gets the cached value for `key`.
*
* @private
* @name get
* @memberOf _.memoize.Cache
* @param {string} key The key of the value to get.
* @returns {*} Returns the cached value.
*/function mapGet(key){return key == '__proto__'?undefined:this.__data__[key];} /**
* Checks if a cached value for `key` exists.
*
* @private
* @name has
* @memberOf _.memoize.Cache
* @param {string} key The key of the entry to check.
* @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
*/function mapHas(key){return key != '__proto__' && hasOwnProperty.call(this.__data__,key);} /**
* Sets `value` to `key` of the cache.
*
* @private
* @name set
* @memberOf _.memoize.Cache
* @param {string} key The key of the value to cache.
* @param {*} value The value to cache.
* @returns {Object} Returns the cache object.
*/function mapSet(key,value){if(key != '__proto__'){this.__data__[key] = value;}return this;} /*------------------------------------------------------------------------*/ /**
*
* Creates a cache object to store unique values.
*
* @private
* @param {Array} [values] The values to cache.
*/function SetCache(values){var length=values?values.length:0;this.data = {'hash':nativeCreate(null),'set':new Set()};while(length--) {this.push(values[length]);}} /**
* Checks if `value` is in `cache` mimicking the return signature of
* `_.indexOf` by returning `0` if the value is found, else `-1`.
*
* @private
* @param {Object} cache The cache to search.
* @param {*} value The value to search for.
* @returns {number} Returns `0` if `value` is found, else `-1`.
*/function cacheIndexOf(cache,value){var data=cache.data,result=typeof value == 'string' || isObject(value)?data.set.has(value):data.hash[value];return result?0:-1;} /**
* Adds `value` to the cache.
*
* @private
* @name push
* @memberOf SetCache
* @param {*} value The value to cache.
*/function cachePush(value){var data=this.data;if(typeof value == 'string' || isObject(value)){data.set.add(value);}else {data.hash[value] = true;}} /*------------------------------------------------------------------------*/ /**
* Creates a new array joining `array` with `other`.
*
* @private
* @param {Array} array The array to join.
* @param {Array} other The other array to join.
* @returns {Array} Returns the new concatenated array.
*/function arrayConcat(array,other){var index=-1,length=array.length,othIndex=-1,othLength=other.length,result=Array(length + othLength);while(++index < length) {result[index] = array[index];}while(++othIndex < othLength) {result[index++] = other[othIndex];}return result;} /**
* Copies the values of `source` to `array`.
*
* @private
* @param {Array} source The array to copy values from.
* @param {Array} [array=[]] The array to copy values to.
* @returns {Array} Returns `array`.
*/function arrayCopy(source,array){var index=-1,length=source.length;array || (array = Array(length));while(++index < length) {array[index] = source[index];}return array;} /**
* A specialized version of `_.forEach` for arrays without support for callback
* shorthands and `this` binding.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @returns {Array} Returns `array`.
*/function arrayEach(array,iteratee){var index=-1,length=array.length;while(++index < length) {if(iteratee(array[index],index,array) === false){break;}}return array;} /**
* A specialized version of `_.forEachRight` for arrays without support for
* callback shorthands and `this` binding.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @returns {Array} Returns `array`.
*/function arrayEachRight(array,iteratee){var length=array.length;while(length--) {if(iteratee(array[length],length,array) === false){break;}}return array;} /**
* A specialized version of `_.every` for arrays without support for callback
* shorthands and `this` binding.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Function} predicate The function invoked per iteration.
* @returns {boolean} Returns `true` if all elements pass the predicate check,
* else `false`.
*/function arrayEvery(array,predicate){var index=-1,length=array.length;while(++index < length) {if(!predicate(array[index],index,array)){return false;}}return true;} /**
* A specialized version of `baseExtremum` for arrays which invokes `iteratee`
* with one argument: (value).
*
* @private
* @param {Array} array The array to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @param {Function} comparator The function used to compare values.
* @param {*} exValue The initial extremum value.
* @returns {*} Returns the extremum value.
*/function arrayExtremum(array,iteratee,comparator,exValue){var index=-1,length=array.length,computed=exValue,result=computed;while(++index < length) {var value=array[index],current=+iteratee(value);if(comparator(current,computed)){computed = current;result = value;}}return result;} /**
* A specialized version of `_.filter` for arrays without support for callback
* shorthands and `this` binding.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Function} predicate The function invoked per iteration.
* @returns {Array} Returns the new filtered array.
*/function arrayFilter(array,predicate){var index=-1,length=array.length,resIndex=-1,result=[];while(++index < length) {var value=array[index];if(predicate(value,index,array)){result[++resIndex] = value;}}return result;} /**
* A specialized version of `_.map` for arrays without support for callback
* shorthands and `this` binding.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @returns {Array} Returns the new mapped array.
*/function arrayMap(array,iteratee){var index=-1,length=array.length,result=Array(length);while(++index < length) {result[index] = iteratee(array[index],index,array);}return result;} /**
* Appends the elements of `values` to `array`.
*
* @private
* @param {Array} array The array to modify.
* @param {Array} values The values to append.
* @returns {Array} Returns `array`.
*/function arrayPush(array,values){var index=-1,length=values.length,offset=array.length;while(++index < length) {array[offset + index] = values[index];}return array;} /**
* A specialized version of `_.reduce` for arrays without support for callback
* shorthands and `this` binding.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @param {*} [accumulator] The initial value.
* @param {boolean} [initFromArray] Specify using the first element of `array`
* as the initial value.
* @returns {*} Returns the accumulated value.
*/function arrayReduce(array,iteratee,accumulator,initFromArray){var index=-1,length=array.length;if(initFromArray && length){accumulator = array[++index];}while(++index < length) {accumulator = iteratee(accumulator,array[index],index,array);}return accumulator;} /**
* A specialized version of `_.reduceRight` for arrays without support for
* callback shorthands and `this` binding.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @param {*} [accumulator] The initial value.
* @param {boolean} [initFromArray] Specify using the last element of `array`
* as the initial value.
* @returns {*} Returns the accumulated value.
*/function arrayReduceRight(array,iteratee,accumulator,initFromArray){var length=array.length;if(initFromArray && length){accumulator = array[--length];}while(length--) {accumulator = iteratee(accumulator,array[length],length,array);}return accumulator;} /**
* A specialized version of `_.some` for arrays without support for callback
* shorthands and `this` binding.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Function} predicate The function invoked per iteration.
* @returns {boolean} Returns `true` if any element passes the predicate check,
* else `false`.
*/function arraySome(array,predicate){var index=-1,length=array.length;while(++index < length) {if(predicate(array[index],index,array)){return true;}}return false;} /**
* A specialized version of `_.sum` for arrays without support for callback
* shorthands and `this` binding..
*
* @private
* @param {Array} array The array to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @returns {number} Returns the sum.
*/function arraySum(array,iteratee){var length=array.length,result=0;while(length--) {result += +iteratee(array[length]) || 0;}return result;} /**
* Used by `_.defaults` to customize its `_.assign` use.
*
* @private
* @param {*} objectValue The destination object property value.
* @param {*} sourceValue The source object property value.
* @returns {*} Returns the value to assign to the destination object.
*/function assignDefaults(objectValue,sourceValue){return objectValue === undefined?sourceValue:objectValue;} /**
* Used by `_.template` to customize its `_.assign` use.
*
* **Note:** This function is like `assignDefaults` except that it ignores
* inherited property values when checking if a property is `undefined`.
*
* @private
* @param {*} objectValue The destination object property value.
* @param {*} sourceValue The source object property value.
* @param {string} key The key associated with the object and source values.
* @param {Object} object The destination object.
* @returns {*} Returns the value to assign to the destination object.
*/function assignOwnDefaults(objectValue,sourceValue,key,object){return objectValue === undefined || !hasOwnProperty.call(object,key)?sourceValue:objectValue;} /**
* A specialized version of `_.assign` for customizing assigned values without
* support for argument juggling, multiple sources, and `this` binding `customizer`
* functions.
*
* @private
* @param {Object} object The destination object.
* @param {Object} source The source object.
* @param {Function} customizer The function to customize assigned values.
* @returns {Object} Returns `object`.
*/function assignWith(object,source,customizer){var index=-1,props=keys(source),length=props.length;while(++index < length) {var key=props[index],value=object[key],result=customizer(value,source[key],key,object,source);if((result === result?result !== value:value === value) || value === undefined && !(key in object)){object[key] = result;}}return object;} /**
* The base implementation of `_.assign` without support for argument juggling,
* multiple sources, and `customizer` functions.
*
* @private
* @param {Object} object The destination object.
* @param {Object} source The source object.
* @returns {Object} Returns `object`.
*/function baseAssign(object,source){return source == null?object:baseCopy(source,keys(source),object);} /**
* The base implementation of `_.at` without support for string collections
* and individual key arguments.
*
* @private
* @param {Array|Object} collection The collection to iterate over.
* @param {number[]|string[]} props The property names or indexes of elements to pick.
* @returns {Array} Returns the new array of picked elements.
*/function baseAt(collection,props){var index=-1,isNil=collection == null,isArr=!isNil && isArrayLike(collection),length=isArr?collection.length:0,propsLength=props.length,result=Array(propsLength);while(++index < propsLength) {var key=props[index];if(isArr){result[index] = isIndex(key,length)?collection[key]:undefined;}else {result[index] = isNil?undefined:collection[key];}}return result;} /**
* Copies properties of `source` to `object`.
*
* @private
* @param {Object} source The object to copy properties from.
* @param {Array} props The property names to copy.
* @param {Object} [object={}] The object to copy properties to.
* @returns {Object} Returns `object`.
*/function baseCopy(source,props,object){object || (object = {});var index=-1,length=props.length;while(++index < length) {var key=props[index];object[key] = source[key];}return object;} /**
* The base implementation of `_.callback` which supports specifying the
* number of arguments to provide to `func`.
*
* @private
* @param {*} [func=_.identity] The value to convert to a callback.
* @param {*} [thisArg] The `this` binding of `func`.
* @param {number} [argCount] The number of arguments to provide to `func`.
* @returns {Function} Returns the callback.
*/function baseCallback(func,thisArg,argCount){var type=typeof func;if(type == 'function'){return thisArg === undefined?func:bindCallback(func,thisArg,argCount);}if(func == null){return identity;}if(type == 'object'){return baseMatches(func);}return thisArg === undefined?property(func):baseMatchesProperty(func,thisArg);} /**
* The base implementation of `_.clone` without support for argument juggling
* and `this` binding `customizer` functions.
*
* @private
* @param {*} value The value to clone.
* @param {boolean} [isDeep] Specify a deep clone.
* @param {Function} [customizer] The function to customize cloning values.
* @param {string} [key] The key of `value`.
* @param {Object} [object] The object `value` belongs to.
* @param {Array} [stackA=[]] Tracks traversed source objects.
* @param {Array} [stackB=[]] Associates clones with source counterparts.
* @returns {*} Returns the cloned value.
*/function baseClone(value,isDeep,customizer,key,object,stackA,stackB){var result;if(customizer){result = object?customizer(value,key,object):customizer(value);}if(result !== undefined){return result;}if(!isObject(value)){return value;}var isArr=isArray(value);if(isArr){result = initCloneArray(value);if(!isDeep){return arrayCopy(value,result);}}else {var tag=objToString.call(value),isFunc=tag == funcTag;if(tag == objectTag || tag == argsTag || isFunc && !object){result = initCloneObject(isFunc?{}:value);if(!isDeep){return baseAssign(result,value);}}else {return cloneableTags[tag]?initCloneByTag(value,tag,isDeep):object?value:{};}} // Check for circular references and return its corresponding clone.
stackA || (stackA = []);stackB || (stackB = []);var length=stackA.length;while(length--) {if(stackA[length] == value){return stackB[length];}} // Add the source value to the stack of traversed objects and associate it with its clone.
stackA.push(value);stackB.push(result); // Recursively populate clone (susceptible to call stack limits).
(isArr?arrayEach:baseForOwn)(value,function(subValue,key){result[key] = baseClone(subValue,isDeep,customizer,key,value,stackA,stackB);});return result;} /**
* The base implementation of `_.create` without support for assigning
* properties to the created object.
*
* @private
* @param {Object} prototype The object to inherit from.
* @returns {Object} Returns the new object.
*/var baseCreate=(function(){function object(){}return function(prototype){if(isObject(prototype)){object.prototype = prototype;var result=new object();object.prototype = undefined;}return result || {};};})(); /**
* The base implementation of `_.delay` and `_.defer` which accepts an index
* of where to slice the arguments to provide to `func`.
*
* @private
* @param {Function} func The function to delay.
* @param {number} wait The number of milliseconds to delay invocation.
* @param {Object} args The arguments provide to `func`.
* @returns {number} Returns the timer id.
*/function baseDelay(func,wait,args){if(typeof func != 'function'){throw new TypeError(FUNC_ERROR_TEXT);}return setTimeout(function(){func.apply(undefined,args);},wait);} /**
* The base implementation of `_.difference` which accepts a single array
* of values to exclude.
*
* @private
* @param {Array} array The array to inspect.
* @param {Array} values The values to exclude.
* @returns {Array} Returns the new array of filtered values.
*/function baseDifference(array,values){var length=array?array.length:0,result=[];if(!length){return result;}var index=-1,indexOf=getIndexOf(),isCommon=indexOf == baseIndexOf,cache=isCommon && values.length >= LARGE_ARRAY_SIZE?createCache(values):null,valuesLength=values.length;if(cache){indexOf = cacheIndexOf;isCommon = false;values = cache;}outer: while(++index < length) {var value=array[index];if(isCommon && value === value){var valuesIndex=valuesLength;while(valuesIndex--) {if(values[valuesIndex] === value){continue outer;}}result.push(value);}else if(indexOf(values,value,0) < 0){result.push(value);}}return result;} /**
* The base implementation of `_.forEach` without support for callback
* shorthands and `this` binding.
*