diff --git a/README-zh.md b/README-zh.md
index e198bb71..3d4970c0 100644
--- a/README-zh.md
+++ b/README-zh.md
@@ -188,6 +188,7 @@ hotkeys('ctrl-y, ctrl-a', {splitKey: '-'}, function(e){
 - `keydown<Boolean>`
 - `splitKey<string>` (默认值 `+`)
 - `capture<Boolean>`
+- `single<Boolean>`
 
 ```js
 hotkeys('o, enter', {
diff --git a/README.md b/README.md
index 6782d28c..9794b5a4 100644
--- a/README.md
+++ b/README.md
@@ -159,6 +159,7 @@ hotkeys('*','wcj', function(event){
 - `keydown<Boolean>`
 - `splitKey<string>` (default is `+`)
 - `capture<Boolean>`
+- `single<Boolean>`
 
 ```js
 hotkeys('o, enter', {
diff --git a/dist/hotkeys.common.js b/dist/hotkeys.common.js
index 64f0a34a..36a85267 100644
--- a/dist/hotkeys.common.js
+++ b/dist/hotkeys.common.js
@@ -1,22 +1,25 @@
 /**! 
- * hotkeys-js v3.12.2 
+ * hotkeys-js v3.13.0 
  * A simple micro-library for defining and dispatching keyboard shortcuts. It has no dependencies. 
  * 
  * Copyright (c) 2023 kenny wong <wowohoo@qq.com> 
- * https://jaywcjlove.github.io/hotkeys-js 
+ * https://github.com/jaywcjlove/hotkeys-js.git 
+ * 
+ * @website: https://jaywcjlove.github.io/hotkeys-js
+ 
  * Licensed under the MIT license 
  */
 
 'use strict';
 
-var isff = typeof navigator !== 'undefined' ? navigator.userAgent.toLowerCase().indexOf('firefox') > 0 : false;
+const isff = typeof navigator !== 'undefined' ? navigator.userAgent.toLowerCase().indexOf('firefox') > 0 : false;
 
 // 绑定事件
 function addEvent(object, event, method, useCapture) {
   if (object.addEventListener) {
     object.addEventListener(event, method, useCapture);
   } else if (object.attachEvent) {
-    object.attachEvent("on".concat(event), function () {
+    object.attachEvent("on".concat(event), () => {
       method(window.event);
     });
   }
@@ -24,8 +27,8 @@ function addEvent(object, event, method, useCapture) {
 
 // 修饰键转换成对应的键码
 function getMods(modifier, key) {
-  var mods = key.slice(0, key.length - 1);
-  for (var i = 0; i < mods.length; i++) mods[i] = modifier[mods[i].toLowerCase()];
+  const mods = key.slice(0, key.length - 1);
+  for (let i = 0; i < mods.length; i++) mods[i] = modifier[mods[i].toLowerCase()];
   return mods;
 }
 
@@ -33,8 +36,8 @@ function getMods(modifier, key) {
 function getKeys(key) {
   if (typeof key !== 'string') key = '';
   key = key.replace(/\s/g, ''); // 匹配任何空白字符,包括空格、制表符、换页符等等
-  var keys = key.split(','); // 同时设置多个快捷键，以','分割
-  var index = keys.lastIndexOf('');
+  const keys = key.split(','); // 同时设置多个快捷键，以','分割
+  let index = keys.lastIndexOf('');
 
   // 快捷键可能包含','，需特殊处理
   for (; index >= 0;) {
@@ -47,17 +50,17 @@ function getKeys(key) {
 
 // 比较修饰键的数组
 function compareArray(a1, a2) {
-  var arr1 = a1.length >= a2.length ? a1 : a2;
-  var arr2 = a1.length >= a2.length ? a2 : a1;
-  var isIndex = true;
-  for (var i = 0; i < arr1.length; i++) {
+  const arr1 = a1.length >= a2.length ? a1 : a2;
+  const arr2 = a1.length >= a2.length ? a2 : a1;
+  let isIndex = true;
+  for (let i = 0; i < arr1.length; i++) {
     if (arr2.indexOf(arr1[i]) === -1) isIndex = false;
   }
   return isIndex;
 }
 
 // Special Keys
-var _keyMap = {
+const _keyMap = {
   backspace: 8,
   '⌫': 8,
   tab: 9,
@@ -112,7 +115,7 @@ var _keyMap = {
 };
 
 // Modifier Keys
-var _modifier = {
+const _modifier = {
   // shiftKey
   '⇧': 16,
   shift: 16,
@@ -129,7 +132,7 @@ var _modifier = {
   cmd: 91,
   command: 91
 };
-var modifierMap = {
+const modifierMap = {
   16: 'shiftKey',
   18: 'altKey',
   17: 'ctrlKey',
@@ -139,38 +142,28 @@ var modifierMap = {
   altKey: 18,
   metaKey: 91
 };
-var _mods = {
+const _mods = {
   16: false,
   18: false,
   17: false,
   91: false
 };
-var _handlers = {};
+const _handlers = {};
 
 // F1~F12 special key
-for (var k = 1; k < 20; k++) {
+for (let k = 1; k < 20; k++) {
   _keyMap["f".concat(k)] = 111 + k;
 }
 
-var _downKeys = []; // 记录摁下的绑定键
-var winListendFocus = false; // window是否已经监听了focus事件
-var _scope = 'all'; // 默认热键范围
-var elementHasBindEvent = []; // 已绑定事件的节点记录
+let _downKeys = []; // 记录摁下的绑定键
+let winListendFocus = false; // window是否已经监听了focus事件
+let _scope = 'all'; // 默认热键范围
+const elementHasBindEvent = []; // 已绑定事件的节点记录
 
 // 返回键码
-var code = function code(x) {
-  return _keyMap[x.toLowerCase()] || _modifier[x.toLowerCase()] || x.toUpperCase().charCodeAt(0);
-};
-var getKey = function getKey(x) {
-  return Object.keys(_keyMap).find(function (k) {
-    return _keyMap[k] === x;
-  });
-};
-var getModifier = function getModifier(x) {
-  return Object.keys(_modifier).find(function (k) {
-    return _modifier[k] === x;
-  });
-};
+const code = x => _keyMap[x.toLowerCase()] || _modifier[x.toLowerCase()] || x.toUpperCase().charCodeAt(0);
+const getKey = x => Object.keys(_keyMap).find(k => _keyMap[k] === x);
+const getModifier = x => Object.keys(_modifier).find(k => _modifier[k] === x);
 
 // 设置获取当前范围（默认为'所有'）
 function setScope(scope) {
@@ -185,25 +178,23 @@ function getPressedKeyCodes() {
   return _downKeys.slice(0);
 }
 function getPressedKeyString() {
-  return _downKeys.map(function (c) {
-    return getKey(c) || getModifier(c) || String.fromCharCode(c);
-  });
+  return _downKeys.map(c => getKey(c) || getModifier(c) || String.fromCharCode(c));
 }
 function getAllKeyCodes() {
-  var result = [];
-  Object.keys(_handlers).forEach(function (k) {
-    _handlers[k].forEach(function (_ref) {
-      var key = _ref.key,
-        scope = _ref.scope,
-        mods = _ref.mods,
-        shortcut = _ref.shortcut;
+  const result = [];
+  Object.keys(_handlers).forEach(k => {
+    _handlers[k].forEach(_ref => {
+      let {
+        key,
+        scope,
+        mods,
+        shortcut
+      } = _ref;
       result.push({
-        scope: scope,
-        shortcut: shortcut,
-        mods: mods,
-        keys: key.split('+').map(function (v) {
-          return code(v);
-        })
+        scope,
+        shortcut,
+        mods,
+        keys: key.split('+').map(v => code(v))
       });
     });
   });
@@ -213,9 +204,11 @@ function getAllKeyCodes() {
 // 表单控件控件判断 返回 Boolean
 // hotkey is effective only when filter return true
 function filter(event) {
-  var target = event.target || event.srcElement;
-  var tagName = target.tagName;
-  var flag = true;
+  const target = event.target || event.srcElement;
+  const {
+    tagName
+  } = target;
+  let flag = true;
   // ignore: isContentEditable === 'true', <input> and <textarea> when readOnly state is false, <select>
   if (target.isContentEditable || (tagName === 'INPUT' || tagName === 'TEXTAREA' || tagName === 'SELECT') && !target.readOnly) {
     flag = false;
@@ -228,18 +221,17 @@ function isPressed(keyCode) {
   if (typeof keyCode === 'string') {
     keyCode = code(keyCode); // 转换成键码
   }
-
   return _downKeys.indexOf(keyCode) !== -1;
 }
 
 // 循环删除handlers中的所有 scope(范围)
 function deleteScope(scope, newScope) {
-  var handlers;
-  var i;
+  let handlers;
+  let i;
 
   // 没有指定scope，获取scope
   if (!scope) scope = getScope();
-  for (var key in _handlers) {
+  for (const key in _handlers) {
     if (Object.prototype.hasOwnProperty.call(_handlers, key)) {
       handlers = _handlers[key];
       for (i = 0; i < handlers.length;) {
@@ -254,8 +246,8 @@ function deleteScope(scope, newScope) {
 
 // 清除修饰键
 function clearModifier(event) {
-  var key = event.keyCode || event.which || event.charCode;
-  var i = _downKeys.indexOf(key);
+  let key = event.keyCode || event.which || event.charCode;
+  const i = _downKeys.indexOf(key);
 
   // 从列表中清除按压过的键
   if (i >= 0) {
@@ -272,18 +264,16 @@ function clearModifier(event) {
     _mods[key] = false;
 
     // 将修饰键重置为false
-    for (var k in _modifier) if (_modifier[k] === key) hotkeys[k] = false;
+    for (const k in _modifier) if (_modifier[k] === key) hotkeys[k] = false;
   }
 }
 function unbind(keysInfo) {
   // unbind(), unbind all keys
   if (typeof keysInfo === 'undefined') {
-    Object.keys(_handlers).forEach(function (key) {
-      return delete _handlers[key];
-    });
+    Object.keys(_handlers).forEach(key => delete _handlers[key]);
   } else if (Array.isArray(keysInfo)) {
     // support like : unbind([{key: 'ctrl+a', scope: 's1'}, {key: 'ctrl-a', scope: 's2', splitKey: '-'}])
-    keysInfo.forEach(function (info) {
+    keysInfo.forEach(info => {
       if (info.key) eachUnbind(info);
     });
   } else if (typeof keysInfo === 'object') {
@@ -295,41 +285,41 @@ function unbind(keysInfo) {
     }
     // support old method
     // eslint-disable-line
-    var scope = args[0],
-      method = args[1];
+    let [scope, method] = args;
     if (typeof scope === 'function') {
       method = scope;
       scope = '';
     }
     eachUnbind({
       key: keysInfo,
-      scope: scope,
-      method: method,
+      scope,
+      method,
       splitKey: '+'
     });
   }
 }
 
 // 解除绑定某个范围的快捷键
-var eachUnbind = function eachUnbind(_ref2) {
-  var key = _ref2.key,
-    scope = _ref2.scope,
-    method = _ref2.method,
-    _ref2$splitKey = _ref2.splitKey,
-    splitKey = _ref2$splitKey === void 0 ? '+' : _ref2$splitKey;
-  var multipleKeys = getKeys(key);
-  multipleKeys.forEach(function (originKey) {
-    var unbindKeys = originKey.split(splitKey);
-    var len = unbindKeys.length;
-    var lastKey = unbindKeys[len - 1];
-    var keyCode = lastKey === '*' ? '*' : code(lastKey);
+const eachUnbind = _ref2 => {
+  let {
+    key,
+    scope,
+    method,
+    splitKey = '+'
+  } = _ref2;
+  const multipleKeys = getKeys(key);
+  multipleKeys.forEach(originKey => {
+    const unbindKeys = originKey.split(splitKey);
+    const len = unbindKeys.length;
+    const lastKey = unbindKeys[len - 1];
+    const keyCode = lastKey === '*' ? '*' : code(lastKey);
     if (!_handlers[keyCode]) return;
     // 判断是否传入范围，没有就获取范围
     if (!scope) scope = getScope();
-    var mods = len > 1 ? getMods(_modifier, unbindKeys) : [];
-    _handlers[keyCode] = _handlers[keyCode].filter(function (record) {
+    const mods = len > 1 ? getMods(_modifier, unbindKeys) : [];
+    _handlers[keyCode] = _handlers[keyCode].filter(record => {
       // 通过函数判断，是否解除绑定，函数相等直接返回
-      var isMatchingMethod = method ? record.method === method : true;
+      const isMatchingMethod = method ? record.method === method : true;
       return !(isMatchingMethod && record.scope === scope && compareArray(record.mods, mods));
     });
   });
@@ -340,13 +330,13 @@ function eventHandler(event, handler, scope, element) {
   if (handler.element !== element) {
     return;
   }
-  var modifiersMatch;
+  let modifiersMatch;
 
   // 看它是否在当前范围
   if (handler.scope === scope || handler.scope === 'all') {
     // 检查是否匹配修饰符（如果有返回true）
     modifiersMatch = handler.mods.length > 0;
-    for (var y in _mods) {
+    for (const y in _mods) {
       if (Object.prototype.hasOwnProperty.call(_mods, y)) {
         if (!_mods[y] && handler.mods.indexOf(+y) > -1 || _mods[y] && handler.mods.indexOf(+y) === -1) {
           modifiersMatch = false;
@@ -369,8 +359,8 @@ function eventHandler(event, handler, scope, element) {
 
 // 处理keydown事件
 function dispatch(event, element) {
-  var asterisk = _handlers['*'];
-  var key = event.keyCode || event.which || event.charCode;
+  const asterisk = _handlers['*'];
+  let key = event.keyCode || event.which || event.charCode;
 
   // 表单控件过滤 默认表单控件不触发快捷键
   if (!hotkeys.filter.call(this, event)) return;
@@ -390,8 +380,8 @@ function dispatch(event, element) {
    * Jest test cases are required.
    * ===============================
    */
-  ['ctrlKey', 'altKey', 'shiftKey', 'metaKey'].forEach(function (keyName) {
-    var keyNum = modifierMap[keyName];
+  ['ctrlKey', 'altKey', 'shiftKey', 'metaKey'].forEach(keyName => {
+    const keyNum = modifierMap[keyName];
     if (event[keyName] && _downKeys.indexOf(keyNum) === -1) {
       _downKeys.push(keyNum);
     } else if (!event[keyName] && _downKeys.indexOf(keyNum) > -1) {
@@ -414,14 +404,14 @@ function dispatch(event, element) {
     _mods[key] = true;
 
     // 将特殊字符的key注册到 hotkeys 上
-    for (var k in _modifier) {
+    for (const k in _modifier) {
       if (_modifier[k] === key) hotkeys[k] = true;
     }
     if (!asterisk) return;
   }
 
   // 将 modifierMap 里面的修饰键绑定到 event 中
-  for (var e in _mods) {
+  for (const e in _mods) {
     if (Object.prototype.hasOwnProperty.call(_mods, e)) {
       _mods[e] = event[modifierMap[e]];
     }
@@ -444,10 +434,10 @@ function dispatch(event, element) {
   }
 
   // 获取范围 默认为 `all`
-  var scope = getScope();
+  const scope = getScope();
   // 对任何快捷键都需要做的处理
   if (asterisk) {
-    for (var i = 0; i < asterisk.length; i++) {
+    for (let i = 0; i < asterisk.length; i++) {
       if (asterisk[i].scope === scope && (event.type === 'keydown' && asterisk[i].keydown || event.type === 'keyup' && asterisk[i].keyup)) {
         eventHandler(event, asterisk[i], scope, element);
       }
@@ -455,14 +445,16 @@ function dispatch(event, element) {
   }
   // key 不在 _handlers 中返回
   if (!(key in _handlers)) return;
-  for (var _i = 0; _i < _handlers[key].length; _i++) {
-    if (event.type === 'keydown' && _handlers[key][_i].keydown || event.type === 'keyup' && _handlers[key][_i].keyup) {
-      if (_handlers[key][_i].key) {
-        var record = _handlers[key][_i];
-        var splitKey = record.splitKey;
-        var keyShortcut = record.key.split(splitKey);
-        var _downKeysCurrent = []; // 记录当前按键键值
-        for (var a = 0; a < keyShortcut.length; a++) {
+  for (let i = 0; i < _handlers[key].length; i++) {
+    if (event.type === 'keydown' && _handlers[key][i].keydown || event.type === 'keyup' && _handlers[key][i].keyup) {
+      if (_handlers[key][i].key) {
+        const record = _handlers[key][i];
+        const {
+          splitKey
+        } = record;
+        const keyShortcut = record.key.split(splitKey);
+        const _downKeysCurrent = []; // 记录当前按键键值
+        for (let a = 0; a < keyShortcut.length; a++) {
           _downKeysCurrent.push(code(keyShortcut[a]));
         }
         if (_downKeysCurrent.sort().join('') === _downKeys.sort().join('')) {
@@ -480,15 +472,16 @@ function isElementBind(element) {
 }
 function hotkeys(key, option, method) {
   _downKeys = [];
-  var keys = getKeys(key); // 需要处理的快捷键列表
-  var mods = [];
-  var scope = 'all'; // scope默认为all，所有范围都有效
-  var element = document; // 快捷键事件绑定节点
-  var i = 0;
-  var keyup = false;
-  var keydown = true;
-  var splitKey = '+';
-  var capture = false;
+  const keys = getKeys(key); // 需要处理的快捷键列表
+  let mods = [];
+  let scope = 'all'; // scope默认为all，所有范围都有效
+  let element = document; // 快捷键事件绑定节点
+  let i = 0;
+  let keyup = false;
+  let keydown = true;
+  let splitKey = '+';
+  let capture = false;
+  let single = false; // 单个callback
 
   // 对为设定范围的判断
   if (method === undefined && typeof option === 'function') {
@@ -501,9 +494,8 @@ function hotkeys(key, option, method) {
     if (option.keydown !== undefined) keydown = option.keydown; // eslint-disable-line
     if (option.capture !== undefined) capture = option.capture; // eslint-disable-line
     if (typeof option.splitKey === 'string') splitKey = option.splitKey; // eslint-disable-line
-    if (option.singleton === true) ; // eslint-disable-line
+    if (option.single === true) single = true; // eslint-disable-line
   }
-
   if (typeof option === 'string') scope = option;
 
   // 对于每个快捷键进行处理
@@ -520,72 +512,72 @@ function hotkeys(key, option, method) {
 
     // 判断key是否在_handlers中，不在就赋一个空数组
     if (!(key in _handlers)) _handlers[key] = [];
+    // 如果只允许单个callback，重新设置_handlers
+    if (single) _handlers[key] = [];
     _handlers[key].push({
-      keyup: keyup,
-      keydown: keydown,
-      scope: scope,
-      mods: mods,
+      keyup,
+      keydown,
+      scope,
+      mods,
       shortcut: keys[i],
-      method: method,
+      method,
       key: keys[i],
-      splitKey: splitKey,
-      element: element
+      splitKey,
+      element
     });
   }
   // 在全局document上设置快捷键
   if (typeof element !== 'undefined' && !isElementBind(element) && window) {
     elementHasBindEvent.push(element);
-    addEvent(element, 'keydown', function (e) {
+    addEvent(element, 'keydown', e => {
       dispatch(e, element);
     }, capture);
     if (!winListendFocus) {
       winListendFocus = true;
-      addEvent(window, 'focus', function () {
+      addEvent(window, 'focus', () => {
         _downKeys = [];
       }, capture);
     }
-    addEvent(element, 'keyup', function (e) {
+    addEvent(element, 'keyup', e => {
       dispatch(e, element);
       clearModifier(e);
     }, capture);
   }
 }
 function trigger(shortcut) {
-  var scope = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'all';
-  Object.keys(_handlers).forEach(function (key) {
-    var dataList = _handlers[key].filter(function (item) {
-      return item.scope === scope && item.shortcut === shortcut;
-    });
-    dataList.forEach(function (data) {
+  let scope = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'all';
+  Object.keys(_handlers).forEach(key => {
+    const dataList = _handlers[key].filter(item => item.scope === scope && item.shortcut === shortcut);
+    dataList.forEach(data => {
       if (data && data.method) {
         data.method();
       }
     });
   });
 }
-var _api = {
-  getPressedKeyString: getPressedKeyString,
-  setScope: setScope,
-  getScope: getScope,
-  deleteScope: deleteScope,
-  getPressedKeyCodes: getPressedKeyCodes,
-  getAllKeyCodes: getAllKeyCodes,
-  isPressed: isPressed,
-  filter: filter,
-  trigger: trigger,
-  unbind: unbind,
+const _api = {
+  getPressedKeyString,
+  setScope,
+  getScope,
+  deleteScope,
+  getPressedKeyCodes,
+  getAllKeyCodes,
+  isPressed,
+  filter,
+  trigger,
+  unbind,
   keyMap: _keyMap,
   modifier: _modifier,
-  modifierMap: modifierMap
+  modifierMap
 };
-for (var a in _api) {
+for (const a in _api) {
   if (Object.prototype.hasOwnProperty.call(_api, a)) {
     hotkeys[a] = _api[a];
   }
 }
 if (typeof window !== 'undefined') {
-  var _hotkeys = window.hotkeys;
-  hotkeys.noConflict = function (deep) {
+  const _hotkeys = window.hotkeys;
+  hotkeys.noConflict = deep => {
     if (deep && window.hotkeys === hotkeys) {
       window.hotkeys = _hotkeys;
     }
diff --git a/dist/hotkeys.common.min.js b/dist/hotkeys.common.min.js
index 7b878e7f..0092dd27 100644
--- a/dist/hotkeys.common.min.js
+++ b/dist/hotkeys.common.min.js
@@ -1,2 +1,2 @@
-/*! hotkeys-js v3.12.2 | MIT © 2023 kenny wong <wowohoo@qq.com> https://jaywcjlove.github.io/hotkeys-js */
-"use strict";var isff="undefined"!=typeof navigator&&0<navigator.userAgent.toLowerCase().indexOf("firefox");function addEvent(e,n,t,o){e.addEventListener?e.addEventListener(n,t,o):e.attachEvent&&e.attachEvent("on".concat(n),function(){t(window.event)})}function getMods(e,n){for(var t=n.slice(0,n.length-1),o=0;o<t.length;o++)t[o]=e[t[o].toLowerCase()];return t}function getKeys(e){for(var n=(e=(e="string"!=typeof e?"":e).replace(/\s/g,"")).split(","),t=n.lastIndexOf("");0<=t;)n[t-1]+=",",n.splice(t,1),t=n.lastIndexOf("");return n}function compareArray(e,n){for(var t=e.length<n.length?n:e,o=e.length<n.length?e:n,r=!0,s=0;s<t.length;s++)~o.indexOf(t[s])||(r=!1);return r}for(var _keyMap={backspace:8,"\u232b":8,tab:9,clear:12,enter:13,"\u21a9":13,return:13,esc:27,escape:27,space:32,left:37,up:38,right:39,down:40,del:46,delete:46,ins:45,insert:45,home:36,end:35,pageup:33,pagedown:34,capslock:20,num_0:96,num_1:97,num_2:98,num_3:99,num_4:100,num_5:101,num_6:102,num_7:103,num_8:104,num_9:105,num_multiply:106,num_add:107,num_enter:108,num_subtract:109,num_decimal:110,num_divide:111,"\u21ea":20,",":188,".":190,"/":191,"`":192,"-":isff?173:189,"=":isff?61:187,";":isff?59:186,"'":222,"[":219,"]":221,"\\":220},_modifier={"\u21e7":16,shift:16,"\u2325":18,alt:18,option:18,"\u2303":17,ctrl:17,control:17,"\u2318":91,cmd:91,command:91},modifierMap={16:"shiftKey",18:"altKey",17:"ctrlKey",91:"metaKey",shiftKey:16,ctrlKey:17,altKey:18,metaKey:91},_mods={16:!1,18:!1,17:!1,91:!1},_handlers={},k=1;k<20;k++)_keyMap["f".concat(k)]=111+k;var _downKeys=[],winListendFocus=!1,_scope="all",elementHasBindEvent=[],code=function(e){return _keyMap[e.toLowerCase()]||_modifier[e.toLowerCase()]||e.toUpperCase().charCodeAt(0)},getKey=function(n){return Object.keys(_keyMap).find(function(e){return _keyMap[e]===n})},getModifier=function(n){return Object.keys(_modifier).find(function(e){return _modifier[e]===n})};function setScope(e){_scope=e||"all"}function getScope(){return _scope||"all"}function getPressedKeyCodes(){return _downKeys.slice(0)}function getPressedKeyString(){return _downKeys.map(function(e){return getKey(e)||getModifier(e)||String.fromCharCode(e)})}function getAllKeyCodes(){var t=[];return Object.keys(_handlers).forEach(function(e){_handlers[e].forEach(function(e){var n=e.key;t.push({scope:e.scope,shortcut:e.shortcut,mods:e.mods,keys:n.split("+").map(function(e){return code(e)})})})}),t}function filter(e){var e=e.target||e.srcElement,n=e.tagName;return!e.isContentEditable&&("INPUT"!==n&&"TEXTAREA"!==n&&"SELECT"!==n||e.readOnly)?!0:!1}function isPressed(e){return"string"==typeof e&&(e=code(e)),!!~_downKeys.indexOf(e)}function deleteScope(e,n){var t,o,r;for(r in e=e||getScope(),_handlers)if(Object.prototype.hasOwnProperty.call(_handlers,r))for(t=_handlers[r],o=0;o<t.length;)t[o].scope===e?t.splice(o,1):o++;getScope()===e&&setScope(n||"all")}function clearModifier(e){var n=e.keyCode||e.which||e.charCode,t=_downKeys.indexOf(n);if(t<0||_downKeys.splice(t,1),e.key&&"meta"==e.key.toLowerCase()&&_downKeys.splice(0,_downKeys.length),(n=93!==n&&224!==n?n:91)in _mods)for(var o in _mods[n]=!1,_modifier)_modifier[o]===n&&(hotkeys[o]=!1)}function unbind(e){if(void 0===e)Object.keys(_handlers).forEach(function(e){return delete _handlers[e]});else if(Array.isArray(e))e.forEach(function(e){e.key&&eachUnbind(e)});else if("object"==typeof e)e.key&&eachUnbind(e);else if("string"==typeof e){for(var n=arguments.length,t=Array(1<n?n-1:0),o=1;o<n;o++)t[o-1]=arguments[o];var r=t[0],s=t[1];"function"==typeof r&&(s=r,r=""),eachUnbind({key:e,scope:r,method:s,splitKey:"+"})}}var eachUnbind=function(e){var r=e.scope,s=e.method,n=e.splitKey,i=void 0===n?"+":n;getKeys(e.key).forEach(function(e){var n,e=e.split(i),t=e.length,o=e[t-1],o="*"===o?"*":code(o);_handlers[o]&&(r=r||getScope(),n=1<t?getMods(_modifier,e):[],_handlers[o]=_handlers[o].filter(function(e){return!((!s||e.method===s)&&e.scope===r&&compareArray(e.mods,n))}))})};function eventHandler(e,n,t,o){var r;if(n.element===o&&(n.scope===t||"all"===n.scope)){for(var s in r=0<n.mods.length,_mods)Object.prototype.hasOwnProperty.call(_mods,s)&&(!_mods[s]&&~n.mods.indexOf(+s)||_mods[s]&&!~n.mods.indexOf(+s))&&(r=!1);(0!==n.mods.length||_mods[16]||_mods[18]||_mods[17]||_mods[91])&&!r&&"*"!==n.shortcut||(n.keys=[],n.keys=n.keys.concat(_downKeys),!1===n.method(e,n)&&(e.preventDefault?e.preventDefault():e.returnValue=!1,e.stopPropagation&&e.stopPropagation(),e.cancelBubble)&&(e.cancelBubble=!0))}}function dispatch(t,e){var n=_handlers["*"],o=t.keyCode||t.which||t.charCode;if(hotkeys.filter.call(this,t)){if(~_downKeys.indexOf(o=93!==o&&224!==o?o:91)||229===o||_downKeys.push(o),["ctrlKey","altKey","shiftKey","metaKey"].forEach(function(e){var n=modifierMap[e];t[e]&&!~_downKeys.indexOf(n)?_downKeys.push(n):!t[e]&&~_downKeys.indexOf(n)?_downKeys.splice(_downKeys.indexOf(n),1):"metaKey"!==e||!t[e]||3!==_downKeys.length||t.ctrlKey||t.shiftKey||t.altKey||(_downKeys=_downKeys.slice(_downKeys.indexOf(n)))}),o in _mods){for(var r in _mods[o]=!0,_modifier)_modifier[r]===o&&(hotkeys[r]=!0);if(!n)return}for(var s in _mods)Object.prototype.hasOwnProperty.call(_mods,s)&&(_mods[s]=t[modifierMap[s]]);t.getModifierState&&(!t.altKey||t.ctrlKey)&&t.getModifierState("AltGraph")&&(~_downKeys.indexOf(17)||_downKeys.push(17),~_downKeys.indexOf(18)||_downKeys.push(18),_mods[17]=!0,_mods[18]=!0);var i=getScope();if(n)for(var d=0;d<n.length;d++)n[d].scope===i&&("keydown"===t.type&&n[d].keydown||"keyup"===t.type&&n[d].keyup)&&eventHandler(t,n[d],i,e);if(o in _handlers)for(var a=0;a<_handlers[o].length;a++)if(("keydown"===t.type&&_handlers[o][a].keydown||"keyup"===t.type&&_handlers[o][a].keyup)&&_handlers[o][a].key){for(var c=_handlers[o][a],f=c.key.split(c.splitKey),l=[],y=0;y<f.length;y++)l.push(code(f[y]));l.sort().join("")===_downKeys.sort().join("")&&eventHandler(t,c,i,e)}}}function isElementBind(e){return!!~elementHasBindEvent.indexOf(e)}function hotkeys(e,n,t){_downKeys=[];var o=getKeys(e),r=[],s="all",i=document,d=0,a=!1,c=!0,f="+",l=!1;for(void 0===t&&"function"==typeof n&&(t=n),"[object Object]"===Object.prototype.toString.call(n)&&(n.scope&&(s=n.scope),n.element&&(i=n.element),n.keyup&&(a=n.keyup),void 0!==n.keydown&&(c=n.keydown),void 0!==n.capture&&(l=n.capture),"string"==typeof n.splitKey)&&(f=n.splitKey),"string"==typeof n&&(s=n);d<o.length;d++)r=[],1<(e=o[d].split(f)).length&&(r=getMods(_modifier,e)),(e="*"===(e=e[e.length-1])?"*":code(e))in _handlers||(_handlers[e]=[]),_handlers[e].push({keyup:a,keydown:c,scope:s,mods:r,shortcut:o[d],method:t,key:o[d],splitKey:f,element:i});void 0!==i&&!isElementBind(i)&&window&&(elementHasBindEvent.push(i),addEvent(i,"keydown",function(e){dispatch(e,i)},l),winListendFocus||(winListendFocus=!0,addEvent(window,"focus",function(){_downKeys=[]},l)),addEvent(i,"keyup",function(e){dispatch(e,i),clearModifier(e)},l))}function trigger(n){var t=1<arguments.length&&void 0!==arguments[1]?arguments[1]:"all";Object.keys(_handlers).forEach(function(e){_handlers[e].filter(function(e){return e.scope===t&&e.shortcut===n}).forEach(function(e){e&&e.method&&e.method()})})}var a,_hotkeys,_api={getPressedKeyString:getPressedKeyString,setScope:setScope,getScope:getScope,deleteScope:deleteScope,getPressedKeyCodes:getPressedKeyCodes,getAllKeyCodes:getAllKeyCodes,isPressed:isPressed,filter:filter,trigger:trigger,unbind:unbind,keyMap:_keyMap,modifier:_modifier,modifierMap:modifierMap};for(a in _api)Object.prototype.hasOwnProperty.call(_api,a)&&(hotkeys[a]=_api[a]);"undefined"!=typeof window&&(_hotkeys=window.hotkeys,hotkeys.noConflict=function(e){return e&&window.hotkeys===hotkeys&&(window.hotkeys=_hotkeys),hotkeys},window.hotkeys=hotkeys),module.exports=hotkeys;
\ No newline at end of file
+/*! hotkeys-js v3.13.0 | MIT © 2023 kenny wong <wowohoo@qq.com> https://jaywcjlove.github.io/hotkeys-js */
+"use strict";const isff="undefined"!=typeof navigator&&0<navigator.userAgent.toLowerCase().indexOf("firefox");function addEvent(e,t,o,n){e.addEventListener?e.addEventListener(t,o,n):e.attachEvent&&e.attachEvent("on".concat(t),()=>{o(window.event)})}function getMods(t,e){var o=e.slice(0,e.length-1);for(let e=0;e<o.length;e++)o[e]=t[o[e].toLowerCase()];return o}function getKeys(e){var t=(e=(e="string"!=typeof e?"":e).replace(/\s/g,"")).split(",");let o=t.lastIndexOf("");for(;0<=o;)t[o-1]+=",",t.splice(o,1),o=t.lastIndexOf("");return t}function compareArray(e,t){var o=e.length<t.length?t:e,n=e.length<t.length?e:t;let s=!0;for(let e=0;e<o.length;e++)~n.indexOf(o[e])||(s=!1);return s}const _keyMap={backspace:8,"\u232b":8,tab:9,clear:12,enter:13,"\u21a9":13,return:13,esc:27,escape:27,space:32,left:37,up:38,right:39,down:40,del:46,delete:46,ins:45,insert:45,home:36,end:35,pageup:33,pagedown:34,capslock:20,num_0:96,num_1:97,num_2:98,num_3:99,num_4:100,num_5:101,num_6:102,num_7:103,num_8:104,num_9:105,num_multiply:106,num_add:107,num_enter:108,num_subtract:109,num_decimal:110,num_divide:111,"\u21ea":20,",":188,".":190,"/":191,"`":192,"-":isff?173:189,"=":isff?61:187,";":isff?59:186,"'":222,"[":219,"]":221,"\\":220},_modifier={"\u21e7":16,shift:16,"\u2325":18,alt:18,option:18,"\u2303":17,ctrl:17,control:17,"\u2318":91,cmd:91,command:91},modifierMap={16:"shiftKey",18:"altKey",17:"ctrlKey",91:"metaKey",shiftKey:16,ctrlKey:17,altKey:18,metaKey:91},_mods={16:!1,18:!1,17:!1,91:!1},_handlers={};for(let e=1;e<20;e++)_keyMap["f".concat(e)]=111+e;let _downKeys=[],winListendFocus=!1,_scope="all";const elementHasBindEvent=[],code=e=>_keyMap[e.toLowerCase()]||_modifier[e.toLowerCase()]||e.toUpperCase().charCodeAt(0),getKey=t=>Object.keys(_keyMap).find(e=>_keyMap[e]===t),getModifier=t=>Object.keys(_modifier).find(e=>_modifier[e]===t);function setScope(e){_scope=e||"all"}function getScope(){return _scope||"all"}function getPressedKeyCodes(){return _downKeys.slice(0)}function getPressedKeyString(){return _downKeys.map(e=>getKey(e)||getModifier(e)||String.fromCharCode(e))}function getAllKeyCodes(){const s=[];return Object.keys(_handlers).forEach(e=>{_handlers[e].forEach(e=>{var{key:e,scope:t,mods:o,shortcut:n}=e;s.push({scope:t,shortcut:n,mods:o,keys:e.split("+").map(e=>code(e))})})}),s}function filter(e){var e=e.target||e.srcElement,t=e["tagName"];let o=!e.isContentEditable&&("INPUT"!==t&&"TEXTAREA"!==t&&"SELECT"!==t||e.readOnly)?!0:!1;return o}function isPressed(e){return"string"==typeof e&&(e=code(e)),!!~_downKeys.indexOf(e)}function deleteScope(e,t){var o;let n;e=e||getScope();for(const s in _handlers)if(Object.prototype.hasOwnProperty.call(_handlers,s))for(o=_handlers[s],n=0;n<o.length;)o[n].scope===e?o.splice(n,1):n++;getScope()===e&&setScope(t||"all")}function clearModifier(e){let t=e.keyCode||e.which||e.charCode;var o=_downKeys.indexOf(t);if(o<0||_downKeys.splice(o,1),e.key&&"meta"==e.key.toLowerCase()&&_downKeys.splice(0,_downKeys.length),(t=93!==t&&224!==t?t:91)in _mods){_mods[t]=!1;for(const n in _modifier)_modifier[n]===t&&(hotkeys[n]=!1)}}function unbind(o){if(void 0===o)Object.keys(_handlers).forEach(e=>delete _handlers[e]);else if(Array.isArray(o))o.forEach(e=>{e.key&&eachUnbind(e)});else if("object"==typeof o)o.key&&eachUnbind(o);else if("string"==typeof o){for(var n=arguments.length,s=Array(1<n?n-1:0),d=1;d<n;d++)s[d-1]=arguments[d];let[e,t]=s;"function"==typeof e&&(t=e,e=""),eachUnbind({key:o,scope:e,method:t,splitKey:"+"})}}const eachUnbind=e=>{let{key:t,scope:s,method:d,splitKey:i="+"}=e;getKeys(t).forEach(e=>{var e=e.split(i),t=e.length,o=e[t-1],o="*"===o?"*":code(o);if(_handlers[o]){s=s||getScope();const n=1<t?getMods(_modifier,e):[];_handlers[o]=_handlers[o].filter(e=>{return!((!d||e.method===d)&&e.scope===s&&compareArray(e.mods,n))})}})};function eventHandler(t,o,n,e){if(o.element===e){let e;if(o.scope===n||"all"===o.scope){e=0<o.mods.length;for(const s in _mods)Object.prototype.hasOwnProperty.call(_mods,s)&&(!_mods[s]&&~o.mods.indexOf(+s)||_mods[s]&&!~o.mods.indexOf(+s))&&(e=!1);(0!==o.mods.length||_mods[16]||_mods[18]||_mods[17]||_mods[91])&&!e&&"*"!==o.shortcut||(o.keys=[],o.keys=o.keys.concat(_downKeys),!1===o.method(t,o)&&(t.preventDefault?t.preventDefault():t.returnValue=!1,t.stopPropagation&&t.stopPropagation(),t.cancelBubble)&&(t.cancelBubble=!0))}}}function dispatch(o,t){var n=_handlers["*"];let s=o.keyCode||o.which||o.charCode;if(hotkeys.filter.call(this,o)){if(93!==s&&224!==s||(s=91),~_downKeys.indexOf(s)||229===s||_downKeys.push(s),["ctrlKey","altKey","shiftKey","metaKey"].forEach(e=>{var t=modifierMap[e];o[e]&&!~_downKeys.indexOf(t)?_downKeys.push(t):!o[e]&&~_downKeys.indexOf(t)?_downKeys.splice(_downKeys.indexOf(t),1):"metaKey"!==e||!o[e]||3!==_downKeys.length||o.ctrlKey||o.shiftKey||o.altKey||(_downKeys=_downKeys.slice(_downKeys.indexOf(t)))}),s in _mods){_mods[s]=!0;for(const e in _modifier)_modifier[e]===s&&(hotkeys[e]=!0);if(!n)return}for(const c in _mods)Object.prototype.hasOwnProperty.call(_mods,c)&&(_mods[c]=o[modifierMap[c]]);o.getModifierState&&(!o.altKey||o.ctrlKey)&&o.getModifierState("AltGraph")&&(~_downKeys.indexOf(17)||_downKeys.push(17),~_downKeys.indexOf(18)||_downKeys.push(18),_mods[17]=!0,_mods[18]=!0);var d=getScope();if(n)for(let e=0;e<n.length;e++)n[e].scope===d&&("keydown"===o.type&&n[e].keydown||"keyup"===o.type&&n[e].keyup)&&eventHandler(o,n[e],d,t);if(s in _handlers)for(let e=0;e<_handlers[s].length;e++)if(("keydown"===o.type&&_handlers[s][e].keydown||"keyup"===o.type&&_handlers[s][e].keyup)&&_handlers[s][e].key){var i=_handlers[s][e],r=i["splitKey"],l=i.key.split(r),a=[];for(let e=0;e<l.length;e++)a.push(code(l[e]));a.sort().join("")===_downKeys.sort().join("")&&eventHandler(o,i,d,t)}}}function isElementBind(e){return!!~elementHasBindEvent.indexOf(e)}function hotkeys(e,t,o){_downKeys=[];var n=getKeys(e);let s=[],d="all",i=document,r=0,l=!1,a=!0,c="+",y=!1,f=!1;for(void 0===o&&"function"==typeof t&&(o=t),"[object Object]"===Object.prototype.toString.call(t)&&(t.scope&&(d=t.scope),t.element&&(i=t.element),t.keyup&&(l=t.keyup),void 0!==t.keydown&&(a=t.keydown),void 0!==t.capture&&(y=t.capture),"string"==typeof t.splitKey&&(c=t.splitKey),!0===t.single)&&(f=!0),"string"==typeof t&&(d=t);r<n.length;r++)e=n[r].split(c),s=[],1<e.length&&(s=getMods(_modifier,e)),(e="*"===(e=e[e.length-1])?"*":code(e))in _handlers||(_handlers[e]=[]),f&&(_handlers[e]=[]),_handlers[e].push({keyup:l,keydown:a,scope:d,mods:s,shortcut:n[r],method:o,key:n[r],splitKey:c,element:i});void 0!==i&&!isElementBind(i)&&window&&(elementHasBindEvent.push(i),addEvent(i,"keydown",e=>{dispatch(e,i)},y),winListendFocus||(winListendFocus=!0,addEvent(window,"focus",()=>{_downKeys=[]},y)),addEvent(i,"keyup",e=>{dispatch(e,i),clearModifier(e)},y))}function trigger(t){let o=1<arguments.length&&void 0!==arguments[1]?arguments[1]:"all";Object.keys(_handlers).forEach(e=>{_handlers[e].filter(e=>e.scope===o&&e.shortcut===t).forEach(e=>{e&&e.method&&e.method()})})}const _api={getPressedKeyString:getPressedKeyString,setScope:setScope,getScope:getScope,deleteScope:deleteScope,getPressedKeyCodes:getPressedKeyCodes,getAllKeyCodes:getAllKeyCodes,isPressed:isPressed,filter:filter,trigger:trigger,unbind:unbind,keyMap:_keyMap,modifier:_modifier,modifierMap:modifierMap};for(const f0 in _api)Object.prototype.hasOwnProperty.call(_api,f0)&&(hotkeys[f0]=_api[f0]);if("undefined"!=typeof window){const g0=window.hotkeys;hotkeys.noConflict=e=>(e&&window.hotkeys===hotkeys&&(window.hotkeys=g0),hotkeys),window.hotkeys=hotkeys}module.exports=hotkeys;
\ No newline at end of file
diff --git a/dist/hotkeys.esm.js b/dist/hotkeys.esm.js
index 303c3059..f9aec667 100644
--- a/dist/hotkeys.esm.js
+++ b/dist/hotkeys.esm.js
@@ -1,20 +1,23 @@
 /**! 
- * hotkeys-js v3.12.2 
+ * hotkeys-js v3.13.0 
  * A simple micro-library for defining and dispatching keyboard shortcuts. It has no dependencies. 
  * 
  * Copyright (c) 2023 kenny wong <wowohoo@qq.com> 
- * https://jaywcjlove.github.io/hotkeys-js 
+ * https://github.com/jaywcjlove/hotkeys-js.git 
+ * 
+ * @website: https://jaywcjlove.github.io/hotkeys-js
+ 
  * Licensed under the MIT license 
  */
 
-var isff = typeof navigator !== 'undefined' ? navigator.userAgent.toLowerCase().indexOf('firefox') > 0 : false;
+const isff = typeof navigator !== 'undefined' ? navigator.userAgent.toLowerCase().indexOf('firefox') > 0 : false;
 
 // 绑定事件
 function addEvent(object, event, method, useCapture) {
   if (object.addEventListener) {
     object.addEventListener(event, method, useCapture);
   } else if (object.attachEvent) {
-    object.attachEvent("on".concat(event), function () {
+    object.attachEvent("on".concat(event), () => {
       method(window.event);
     });
   }
@@ -22,8 +25,8 @@ function addEvent(object, event, method, useCapture) {
 
 // 修饰键转换成对应的键码
 function getMods(modifier, key) {
-  var mods = key.slice(0, key.length - 1);
-  for (var i = 0; i < mods.length; i++) mods[i] = modifier[mods[i].toLowerCase()];
+  const mods = key.slice(0, key.length - 1);
+  for (let i = 0; i < mods.length; i++) mods[i] = modifier[mods[i].toLowerCase()];
   return mods;
 }
 
@@ -31,8 +34,8 @@ function getMods(modifier, key) {
 function getKeys(key) {
   if (typeof key !== 'string') key = '';
   key = key.replace(/\s/g, ''); // 匹配任何空白字符,包括空格、制表符、换页符等等
-  var keys = key.split(','); // 同时设置多个快捷键，以','分割
-  var index = keys.lastIndexOf('');
+  const keys = key.split(','); // 同时设置多个快捷键，以','分割
+  let index = keys.lastIndexOf('');
 
   // 快捷键可能包含','，需特殊处理
   for (; index >= 0;) {
@@ -45,17 +48,17 @@ function getKeys(key) {
 
 // 比较修饰键的数组
 function compareArray(a1, a2) {
-  var arr1 = a1.length >= a2.length ? a1 : a2;
-  var arr2 = a1.length >= a2.length ? a2 : a1;
-  var isIndex = true;
-  for (var i = 0; i < arr1.length; i++) {
+  const arr1 = a1.length >= a2.length ? a1 : a2;
+  const arr2 = a1.length >= a2.length ? a2 : a1;
+  let isIndex = true;
+  for (let i = 0; i < arr1.length; i++) {
     if (arr2.indexOf(arr1[i]) === -1) isIndex = false;
   }
   return isIndex;
 }
 
 // Special Keys
-var _keyMap = {
+const _keyMap = {
   backspace: 8,
   '⌫': 8,
   tab: 9,
@@ -110,7 +113,7 @@ var _keyMap = {
 };
 
 // Modifier Keys
-var _modifier = {
+const _modifier = {
   // shiftKey
   '⇧': 16,
   shift: 16,
@@ -127,7 +130,7 @@ var _modifier = {
   cmd: 91,
   command: 91
 };
-var modifierMap = {
+const modifierMap = {
   16: 'shiftKey',
   18: 'altKey',
   17: 'ctrlKey',
@@ -137,38 +140,28 @@ var modifierMap = {
   altKey: 18,
   metaKey: 91
 };
-var _mods = {
+const _mods = {
   16: false,
   18: false,
   17: false,
   91: false
 };
-var _handlers = {};
+const _handlers = {};
 
 // F1~F12 special key
-for (var k = 1; k < 20; k++) {
+for (let k = 1; k < 20; k++) {
   _keyMap["f".concat(k)] = 111 + k;
 }
 
-var _downKeys = []; // 记录摁下的绑定键
-var winListendFocus = false; // window是否已经监听了focus事件
-var _scope = 'all'; // 默认热键范围
-var elementHasBindEvent = []; // 已绑定事件的节点记录
+let _downKeys = []; // 记录摁下的绑定键
+let winListendFocus = false; // window是否已经监听了focus事件
+let _scope = 'all'; // 默认热键范围
+const elementHasBindEvent = []; // 已绑定事件的节点记录
 
 // 返回键码
-var code = function code(x) {
-  return _keyMap[x.toLowerCase()] || _modifier[x.toLowerCase()] || x.toUpperCase().charCodeAt(0);
-};
-var getKey = function getKey(x) {
-  return Object.keys(_keyMap).find(function (k) {
-    return _keyMap[k] === x;
-  });
-};
-var getModifier = function getModifier(x) {
-  return Object.keys(_modifier).find(function (k) {
-    return _modifier[k] === x;
-  });
-};
+const code = x => _keyMap[x.toLowerCase()] || _modifier[x.toLowerCase()] || x.toUpperCase().charCodeAt(0);
+const getKey = x => Object.keys(_keyMap).find(k => _keyMap[k] === x);
+const getModifier = x => Object.keys(_modifier).find(k => _modifier[k] === x);
 
 // 设置获取当前范围（默认为'所有'）
 function setScope(scope) {
@@ -183,25 +176,23 @@ function getPressedKeyCodes() {
   return _downKeys.slice(0);
 }
 function getPressedKeyString() {
-  return _downKeys.map(function (c) {
-    return getKey(c) || getModifier(c) || String.fromCharCode(c);
-  });
+  return _downKeys.map(c => getKey(c) || getModifier(c) || String.fromCharCode(c));
 }
 function getAllKeyCodes() {
-  var result = [];
-  Object.keys(_handlers).forEach(function (k) {
-    _handlers[k].forEach(function (_ref) {
-      var key = _ref.key,
-        scope = _ref.scope,
-        mods = _ref.mods,
-        shortcut = _ref.shortcut;
+  const result = [];
+  Object.keys(_handlers).forEach(k => {
+    _handlers[k].forEach(_ref => {
+      let {
+        key,
+        scope,
+        mods,
+        shortcut
+      } = _ref;
       result.push({
-        scope: scope,
-        shortcut: shortcut,
-        mods: mods,
-        keys: key.split('+').map(function (v) {
-          return code(v);
-        })
+        scope,
+        shortcut,
+        mods,
+        keys: key.split('+').map(v => code(v))
       });
     });
   });
@@ -211,9 +202,11 @@ function getAllKeyCodes() {
 // 表单控件控件判断 返回 Boolean
 // hotkey is effective only when filter return true
 function filter(event) {
-  var target = event.target || event.srcElement;
-  var tagName = target.tagName;
-  var flag = true;
+  const target = event.target || event.srcElement;
+  const {
+    tagName
+  } = target;
+  let flag = true;
   // ignore: isContentEditable === 'true', <input> and <textarea> when readOnly state is false, <select>
   if (target.isContentEditable || (tagName === 'INPUT' || tagName === 'TEXTAREA' || tagName === 'SELECT') && !target.readOnly) {
     flag = false;
@@ -226,18 +219,17 @@ function isPressed(keyCode) {
   if (typeof keyCode === 'string') {
     keyCode = code(keyCode); // 转换成键码
   }
-
   return _downKeys.indexOf(keyCode) !== -1;
 }
 
 // 循环删除handlers中的所有 scope(范围)
 function deleteScope(scope, newScope) {
-  var handlers;
-  var i;
+  let handlers;
+  let i;
 
   // 没有指定scope，获取scope
   if (!scope) scope = getScope();
-  for (var key in _handlers) {
+  for (const key in _handlers) {
     if (Object.prototype.hasOwnProperty.call(_handlers, key)) {
       handlers = _handlers[key];
       for (i = 0; i < handlers.length;) {
@@ -252,8 +244,8 @@ function deleteScope(scope, newScope) {
 
 // 清除修饰键
 function clearModifier(event) {
-  var key = event.keyCode || event.which || event.charCode;
-  var i = _downKeys.indexOf(key);
+  let key = event.keyCode || event.which || event.charCode;
+  const i = _downKeys.indexOf(key);
 
   // 从列表中清除按压过的键
   if (i >= 0) {
@@ -270,18 +262,16 @@ function clearModifier(event) {
     _mods[key] = false;
 
     // 将修饰键重置为false
-    for (var k in _modifier) if (_modifier[k] === key) hotkeys[k] = false;
+    for (const k in _modifier) if (_modifier[k] === key) hotkeys[k] = false;
   }
 }
 function unbind(keysInfo) {
   // unbind(), unbind all keys
   if (typeof keysInfo === 'undefined') {
-    Object.keys(_handlers).forEach(function (key) {
-      return delete _handlers[key];
-    });
+    Object.keys(_handlers).forEach(key => delete _handlers[key]);
   } else if (Array.isArray(keysInfo)) {
     // support like : unbind([{key: 'ctrl+a', scope: 's1'}, {key: 'ctrl-a', scope: 's2', splitKey: '-'}])
-    keysInfo.forEach(function (info) {
+    keysInfo.forEach(info => {
       if (info.key) eachUnbind(info);
     });
   } else if (typeof keysInfo === 'object') {
@@ -293,41 +283,41 @@ function unbind(keysInfo) {
     }
     // support old method
     // eslint-disable-line
-    var scope = args[0],
-      method = args[1];
+    let [scope, method] = args;
     if (typeof scope === 'function') {
       method = scope;
       scope = '';
     }
     eachUnbind({
       key: keysInfo,
-      scope: scope,
-      method: method,
+      scope,
+      method,
       splitKey: '+'
     });
   }
 }
 
 // 解除绑定某个范围的快捷键
-var eachUnbind = function eachUnbind(_ref2) {
-  var key = _ref2.key,
-    scope = _ref2.scope,
-    method = _ref2.method,
-    _ref2$splitKey = _ref2.splitKey,
-    splitKey = _ref2$splitKey === void 0 ? '+' : _ref2$splitKey;
-  var multipleKeys = getKeys(key);
-  multipleKeys.forEach(function (originKey) {
-    var unbindKeys = originKey.split(splitKey);
-    var len = unbindKeys.length;
-    var lastKey = unbindKeys[len - 1];
-    var keyCode = lastKey === '*' ? '*' : code(lastKey);
+const eachUnbind = _ref2 => {
+  let {
+    key,
+    scope,
+    method,
+    splitKey = '+'
+  } = _ref2;
+  const multipleKeys = getKeys(key);
+  multipleKeys.forEach(originKey => {
+    const unbindKeys = originKey.split(splitKey);
+    const len = unbindKeys.length;
+    const lastKey = unbindKeys[len - 1];
+    const keyCode = lastKey === '*' ? '*' : code(lastKey);
     if (!_handlers[keyCode]) return;
     // 判断是否传入范围，没有就获取范围
     if (!scope) scope = getScope();
-    var mods = len > 1 ? getMods(_modifier, unbindKeys) : [];
-    _handlers[keyCode] = _handlers[keyCode].filter(function (record) {
+    const mods = len > 1 ? getMods(_modifier, unbindKeys) : [];
+    _handlers[keyCode] = _handlers[keyCode].filter(record => {
       // 通过函数判断，是否解除绑定，函数相等直接返回
-      var isMatchingMethod = method ? record.method === method : true;
+      const isMatchingMethod = method ? record.method === method : true;
       return !(isMatchingMethod && record.scope === scope && compareArray(record.mods, mods));
     });
   });
@@ -338,13 +328,13 @@ function eventHandler(event, handler, scope, element) {
   if (handler.element !== element) {
     return;
   }
-  var modifiersMatch;
+  let modifiersMatch;
 
   // 看它是否在当前范围
   if (handler.scope === scope || handler.scope === 'all') {
     // 检查是否匹配修饰符（如果有返回true）
     modifiersMatch = handler.mods.length > 0;
-    for (var y in _mods) {
+    for (const y in _mods) {
       if (Object.prototype.hasOwnProperty.call(_mods, y)) {
         if (!_mods[y] && handler.mods.indexOf(+y) > -1 || _mods[y] && handler.mods.indexOf(+y) === -1) {
           modifiersMatch = false;
@@ -367,8 +357,8 @@ function eventHandler(event, handler, scope, element) {
 
 // 处理keydown事件
 function dispatch(event, element) {
-  var asterisk = _handlers['*'];
-  var key = event.keyCode || event.which || event.charCode;
+  const asterisk = _handlers['*'];
+  let key = event.keyCode || event.which || event.charCode;
 
   // 表单控件过滤 默认表单控件不触发快捷键
   if (!hotkeys.filter.call(this, event)) return;
@@ -388,8 +378,8 @@ function dispatch(event, element) {
    * Jest test cases are required.
    * ===============================
    */
-  ['ctrlKey', 'altKey', 'shiftKey', 'metaKey'].forEach(function (keyName) {
-    var keyNum = modifierMap[keyName];
+  ['ctrlKey', 'altKey', 'shiftKey', 'metaKey'].forEach(keyName => {
+    const keyNum = modifierMap[keyName];
     if (event[keyName] && _downKeys.indexOf(keyNum) === -1) {
       _downKeys.push(keyNum);
     } else if (!event[keyName] && _downKeys.indexOf(keyNum) > -1) {
@@ -412,14 +402,14 @@ function dispatch(event, element) {
     _mods[key] = true;
 
     // 将特殊字符的key注册到 hotkeys 上
-    for (var k in _modifier) {
+    for (const k in _modifier) {
       if (_modifier[k] === key) hotkeys[k] = true;
     }
     if (!asterisk) return;
   }
 
   // 将 modifierMap 里面的修饰键绑定到 event 中
-  for (var e in _mods) {
+  for (const e in _mods) {
     if (Object.prototype.hasOwnProperty.call(_mods, e)) {
       _mods[e] = event[modifierMap[e]];
     }
@@ -442,10 +432,10 @@ function dispatch(event, element) {
   }
 
   // 获取范围 默认为 `all`
-  var scope = getScope();
+  const scope = getScope();
   // 对任何快捷键都需要做的处理
   if (asterisk) {
-    for (var i = 0; i < asterisk.length; i++) {
+    for (let i = 0; i < asterisk.length; i++) {
       if (asterisk[i].scope === scope && (event.type === 'keydown' && asterisk[i].keydown || event.type === 'keyup' && asterisk[i].keyup)) {
         eventHandler(event, asterisk[i], scope, element);
       }
@@ -453,14 +443,16 @@ function dispatch(event, element) {
   }
   // key 不在 _handlers 中返回
   if (!(key in _handlers)) return;
-  for (var _i = 0; _i < _handlers[key].length; _i++) {
-    if (event.type === 'keydown' && _handlers[key][_i].keydown || event.type === 'keyup' && _handlers[key][_i].keyup) {
-      if (_handlers[key][_i].key) {
-        var record = _handlers[key][_i];
-        var splitKey = record.splitKey;
-        var keyShortcut = record.key.split(splitKey);
-        var _downKeysCurrent = []; // 记录当前按键键值
-        for (var a = 0; a < keyShortcut.length; a++) {
+  for (let i = 0; i < _handlers[key].length; i++) {
+    if (event.type === 'keydown' && _handlers[key][i].keydown || event.type === 'keyup' && _handlers[key][i].keyup) {
+      if (_handlers[key][i].key) {
+        const record = _handlers[key][i];
+        const {
+          splitKey
+        } = record;
+        const keyShortcut = record.key.split(splitKey);
+        const _downKeysCurrent = []; // 记录当前按键键值
+        for (let a = 0; a < keyShortcut.length; a++) {
           _downKeysCurrent.push(code(keyShortcut[a]));
         }
         if (_downKeysCurrent.sort().join('') === _downKeys.sort().join('')) {
@@ -478,15 +470,16 @@ function isElementBind(element) {
 }
 function hotkeys(key, option, method) {
   _downKeys = [];
-  var keys = getKeys(key); // 需要处理的快捷键列表
-  var mods = [];
-  var scope = 'all'; // scope默认为all，所有范围都有效
-  var element = document; // 快捷键事件绑定节点
-  var i = 0;
-  var keyup = false;
-  var keydown = true;
-  var splitKey = '+';
-  var capture = false;
+  const keys = getKeys(key); // 需要处理的快捷键列表
+  let mods = [];
+  let scope = 'all'; // scope默认为all，所有范围都有效
+  let element = document; // 快捷键事件绑定节点
+  let i = 0;
+  let keyup = false;
+  let keydown = true;
+  let splitKey = '+';
+  let capture = false;
+  let single = false; // 单个callback
 
   // 对为设定范围的判断
   if (method === undefined && typeof option === 'function') {
@@ -499,9 +492,8 @@ function hotkeys(key, option, method) {
     if (option.keydown !== undefined) keydown = option.keydown; // eslint-disable-line
     if (option.capture !== undefined) capture = option.capture; // eslint-disable-line
     if (typeof option.splitKey === 'string') splitKey = option.splitKey; // eslint-disable-line
-    if (option.singleton === true) ; // eslint-disable-line
+    if (option.single === true) single = true; // eslint-disable-line
   }
-
   if (typeof option === 'string') scope = option;
 
   // 对于每个快捷键进行处理
@@ -518,72 +510,72 @@ function hotkeys(key, option, method) {
 
     // 判断key是否在_handlers中，不在就赋一个空数组
     if (!(key in _handlers)) _handlers[key] = [];
+    // 如果只允许单个callback，重新设置_handlers
+    if (single) _handlers[key] = [];
     _handlers[key].push({
-      keyup: keyup,
-      keydown: keydown,
-      scope: scope,
-      mods: mods,
+      keyup,
+      keydown,
+      scope,
+      mods,
       shortcut: keys[i],
-      method: method,
+      method,
       key: keys[i],
-      splitKey: splitKey,
-      element: element
+      splitKey,
+      element
     });
   }
   // 在全局document上设置快捷键
   if (typeof element !== 'undefined' && !isElementBind(element) && window) {
     elementHasBindEvent.push(element);
-    addEvent(element, 'keydown', function (e) {
+    addEvent(element, 'keydown', e => {
       dispatch(e, element);
     }, capture);
     if (!winListendFocus) {
       winListendFocus = true;
-      addEvent(window, 'focus', function () {
+      addEvent(window, 'focus', () => {
         _downKeys = [];
       }, capture);
     }
-    addEvent(element, 'keyup', function (e) {
+    addEvent(element, 'keyup', e => {
       dispatch(e, element);
       clearModifier(e);
     }, capture);
   }
 }
 function trigger(shortcut) {
-  var scope = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'all';
-  Object.keys(_handlers).forEach(function (key) {
-    var dataList = _handlers[key].filter(function (item) {
-      return item.scope === scope && item.shortcut === shortcut;
-    });
-    dataList.forEach(function (data) {
+  let scope = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'all';
+  Object.keys(_handlers).forEach(key => {
+    const dataList = _handlers[key].filter(item => item.scope === scope && item.shortcut === shortcut);
+    dataList.forEach(data => {
       if (data && data.method) {
         data.method();
       }
     });
   });
 }
-var _api = {
-  getPressedKeyString: getPressedKeyString,
-  setScope: setScope,
-  getScope: getScope,
-  deleteScope: deleteScope,
-  getPressedKeyCodes: getPressedKeyCodes,
-  getAllKeyCodes: getAllKeyCodes,
-  isPressed: isPressed,
-  filter: filter,
-  trigger: trigger,
-  unbind: unbind,
+const _api = {
+  getPressedKeyString,
+  setScope,
+  getScope,
+  deleteScope,
+  getPressedKeyCodes,
+  getAllKeyCodes,
+  isPressed,
+  filter,
+  trigger,
+  unbind,
   keyMap: _keyMap,
   modifier: _modifier,
-  modifierMap: modifierMap
+  modifierMap
 };
-for (var a in _api) {
+for (const a in _api) {
   if (Object.prototype.hasOwnProperty.call(_api, a)) {
     hotkeys[a] = _api[a];
   }
 }
 if (typeof window !== 'undefined') {
-  var _hotkeys = window.hotkeys;
-  hotkeys.noConflict = function (deep) {
+  const _hotkeys = window.hotkeys;
+  hotkeys.noConflict = deep => {
     if (deep && window.hotkeys === hotkeys) {
       window.hotkeys = _hotkeys;
     }
diff --git a/dist/hotkeys.js b/dist/hotkeys.js
index 7c333a2a..da52f0ba 100644
--- a/dist/hotkeys.js
+++ b/dist/hotkeys.js
@@ -1,9 +1,12 @@
 /**! 
- * hotkeys-js v3.12.2 
+ * hotkeys-js v3.13.0 
  * A simple micro-library for defining and dispatching keyboard shortcuts. It has no dependencies. 
  * 
  * Copyright (c) 2023 kenny wong <wowohoo@qq.com> 
- * https://jaywcjlove.github.io/hotkeys-js 
+ * https://github.com/jaywcjlove/hotkeys-js.git 
+ * 
+ * @website: https://jaywcjlove.github.io/hotkeys-js
+ 
  * Licensed under the MIT license 
  */
 
@@ -13,14 +16,14 @@
   (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.hotkeys = factory());
 })(this, (function () { 'use strict';
 
-  var isff = typeof navigator !== 'undefined' ? navigator.userAgent.toLowerCase().indexOf('firefox') > 0 : false;
+  const isff = typeof navigator !== 'undefined' ? navigator.userAgent.toLowerCase().indexOf('firefox') > 0 : false;
 
   // 绑定事件
   function addEvent(object, event, method, useCapture) {
     if (object.addEventListener) {
       object.addEventListener(event, method, useCapture);
     } else if (object.attachEvent) {
-      object.attachEvent("on".concat(event), function () {
+      object.attachEvent("on".concat(event), () => {
         method(window.event);
       });
     }
@@ -28,8 +31,8 @@
 
   // 修饰键转换成对应的键码
   function getMods(modifier, key) {
-    var mods = key.slice(0, key.length - 1);
-    for (var i = 0; i < mods.length; i++) mods[i] = modifier[mods[i].toLowerCase()];
+    const mods = key.slice(0, key.length - 1);
+    for (let i = 0; i < mods.length; i++) mods[i] = modifier[mods[i].toLowerCase()];
     return mods;
   }
 
@@ -37,8 +40,8 @@
   function getKeys(key) {
     if (typeof key !== 'string') key = '';
     key = key.replace(/\s/g, ''); // 匹配任何空白字符,包括空格、制表符、换页符等等
-    var keys = key.split(','); // 同时设置多个快捷键，以','分割
-    var index = keys.lastIndexOf('');
+    const keys = key.split(','); // 同时设置多个快捷键，以','分割
+    let index = keys.lastIndexOf('');
 
     // 快捷键可能包含','，需特殊处理
     for (; index >= 0;) {
@@ -51,17 +54,17 @@
 
   // 比较修饰键的数组
   function compareArray(a1, a2) {
-    var arr1 = a1.length >= a2.length ? a1 : a2;
-    var arr2 = a1.length >= a2.length ? a2 : a1;
-    var isIndex = true;
-    for (var i = 0; i < arr1.length; i++) {
+    const arr1 = a1.length >= a2.length ? a1 : a2;
+    const arr2 = a1.length >= a2.length ? a2 : a1;
+    let isIndex = true;
+    for (let i = 0; i < arr1.length; i++) {
       if (arr2.indexOf(arr1[i]) === -1) isIndex = false;
     }
     return isIndex;
   }
 
   // Special Keys
-  var _keyMap = {
+  const _keyMap = {
     backspace: 8,
     '⌫': 8,
     tab: 9,
@@ -116,7 +119,7 @@
   };
 
   // Modifier Keys
-  var _modifier = {
+  const _modifier = {
     // shiftKey
     '⇧': 16,
     shift: 16,
@@ -133,7 +136,7 @@
     cmd: 91,
     command: 91
   };
-  var modifierMap = {
+  const modifierMap = {
     16: 'shiftKey',
     18: 'altKey',
     17: 'ctrlKey',
@@ -143,38 +146,28 @@
     altKey: 18,
     metaKey: 91
   };
-  var _mods = {
+  const _mods = {
     16: false,
     18: false,
     17: false,
     91: false
   };
-  var _handlers = {};
+  const _handlers = {};
 
   // F1~F12 special key
-  for (var k = 1; k < 20; k++) {
+  for (let k = 1; k < 20; k++) {
     _keyMap["f".concat(k)] = 111 + k;
   }
 
-  var _downKeys = []; // 记录摁下的绑定键
-  var winListendFocus = false; // window是否已经监听了focus事件
-  var _scope = 'all'; // 默认热键范围
-  var elementHasBindEvent = []; // 已绑定事件的节点记录
+  let _downKeys = []; // 记录摁下的绑定键
+  let winListendFocus = false; // window是否已经监听了focus事件
+  let _scope = 'all'; // 默认热键范围
+  const elementHasBindEvent = []; // 已绑定事件的节点记录
 
   // 返回键码
-  var code = function code(x) {
-    return _keyMap[x.toLowerCase()] || _modifier[x.toLowerCase()] || x.toUpperCase().charCodeAt(0);
-  };
-  var getKey = function getKey(x) {
-    return Object.keys(_keyMap).find(function (k) {
-      return _keyMap[k] === x;
-    });
-  };
-  var getModifier = function getModifier(x) {
-    return Object.keys(_modifier).find(function (k) {
-      return _modifier[k] === x;
-    });
-  };
+  const code = x => _keyMap[x.toLowerCase()] || _modifier[x.toLowerCase()] || x.toUpperCase().charCodeAt(0);
+  const getKey = x => Object.keys(_keyMap).find(k => _keyMap[k] === x);
+  const getModifier = x => Object.keys(_modifier).find(k => _modifier[k] === x);
 
   // 设置获取当前范围（默认为'所有'）
   function setScope(scope) {
@@ -189,25 +182,23 @@
     return _downKeys.slice(0);
   }
   function getPressedKeyString() {
-    return _downKeys.map(function (c) {
-      return getKey(c) || getModifier(c) || String.fromCharCode(c);
-    });
+    return _downKeys.map(c => getKey(c) || getModifier(c) || String.fromCharCode(c));
   }
   function getAllKeyCodes() {
-    var result = [];
-    Object.keys(_handlers).forEach(function (k) {
-      _handlers[k].forEach(function (_ref) {
-        var key = _ref.key,
-          scope = _ref.scope,
-          mods = _ref.mods,
-          shortcut = _ref.shortcut;
+    const result = [];
+    Object.keys(_handlers).forEach(k => {
+      _handlers[k].forEach(_ref => {
+        let {
+          key,
+          scope,
+          mods,
+          shortcut
+        } = _ref;
         result.push({
-          scope: scope,
-          shortcut: shortcut,
-          mods: mods,
-          keys: key.split('+').map(function (v) {
-            return code(v);
-          })
+          scope,
+          shortcut,
+          mods,
+          keys: key.split('+').map(v => code(v))
         });
       });
     });
@@ -217,9 +208,11 @@
   // 表单控件控件判断 返回 Boolean
   // hotkey is effective only when filter return true
   function filter(event) {
-    var target = event.target || event.srcElement;
-    var tagName = target.tagName;
-    var flag = true;
+    const target = event.target || event.srcElement;
+    const {
+      tagName
+    } = target;
+    let flag = true;
     // ignore: isContentEditable === 'true', <input> and <textarea> when readOnly state is false, <select>
     if (target.isContentEditable || (tagName === 'INPUT' || tagName === 'TEXTAREA' || tagName === 'SELECT') && !target.readOnly) {
       flag = false;
@@ -232,18 +225,17 @@
     if (typeof keyCode === 'string') {
       keyCode = code(keyCode); // 转换成键码
     }
-
     return _downKeys.indexOf(keyCode) !== -1;
   }
 
   // 循环删除handlers中的所有 scope(范围)
   function deleteScope(scope, newScope) {
-    var handlers;
-    var i;
+    let handlers;
+    let i;
 
     // 没有指定scope，获取scope
     if (!scope) scope = getScope();
-    for (var key in _handlers) {
+    for (const key in _handlers) {
       if (Object.prototype.hasOwnProperty.call(_handlers, key)) {
         handlers = _handlers[key];
         for (i = 0; i < handlers.length;) {
@@ -258,8 +250,8 @@
 
   // 清除修饰键
   function clearModifier(event) {
-    var key = event.keyCode || event.which || event.charCode;
-    var i = _downKeys.indexOf(key);
+    let key = event.keyCode || event.which || event.charCode;
+    const i = _downKeys.indexOf(key);
 
     // 从列表中清除按压过的键
     if (i >= 0) {
@@ -276,18 +268,16 @@
       _mods[key] = false;
 
       // 将修饰键重置为false
-      for (var k in _modifier) if (_modifier[k] === key) hotkeys[k] = false;
+      for (const k in _modifier) if (_modifier[k] === key) hotkeys[k] = false;
     }
   }
   function unbind(keysInfo) {
     // unbind(), unbind all keys
     if (typeof keysInfo === 'undefined') {
-      Object.keys(_handlers).forEach(function (key) {
-        return delete _handlers[key];
-      });
+      Object.keys(_handlers).forEach(key => delete _handlers[key]);
     } else if (Array.isArray(keysInfo)) {
       // support like : unbind([{key: 'ctrl+a', scope: 's1'}, {key: 'ctrl-a', scope: 's2', splitKey: '-'}])
-      keysInfo.forEach(function (info) {
+      keysInfo.forEach(info => {
         if (info.key) eachUnbind(info);
       });
     } else if (typeof keysInfo === 'object') {
@@ -299,41 +289,41 @@
       }
       // support old method
       // eslint-disable-line
-      var scope = args[0],
-        method = args[1];
+      let [scope, method] = args;
       if (typeof scope === 'function') {
         method = scope;
         scope = '';
       }
       eachUnbind({
         key: keysInfo,
-        scope: scope,
-        method: method,
+        scope,
+        method,
         splitKey: '+'
       });
     }
   }
 
   // 解除绑定某个范围的快捷键
-  var eachUnbind = function eachUnbind(_ref2) {
-    var key = _ref2.key,
-      scope = _ref2.scope,
-      method = _ref2.method,
-      _ref2$splitKey = _ref2.splitKey,
-      splitKey = _ref2$splitKey === void 0 ? '+' : _ref2$splitKey;
-    var multipleKeys = getKeys(key);
-    multipleKeys.forEach(function (originKey) {
-      var unbindKeys = originKey.split(splitKey);
-      var len = unbindKeys.length;
-      var lastKey = unbindKeys[len - 1];
-      var keyCode = lastKey === '*' ? '*' : code(lastKey);
+  const eachUnbind = _ref2 => {
+    let {
+      key,
+      scope,
+      method,
+      splitKey = '+'
+    } = _ref2;
+    const multipleKeys = getKeys(key);
+    multipleKeys.forEach(originKey => {
+      const unbindKeys = originKey.split(splitKey);
+      const len = unbindKeys.length;
+      const lastKey = unbindKeys[len - 1];
+      const keyCode = lastKey === '*' ? '*' : code(lastKey);
       if (!_handlers[keyCode]) return;
       // 判断是否传入范围，没有就获取范围
       if (!scope) scope = getScope();
-      var mods = len > 1 ? getMods(_modifier, unbindKeys) : [];
-      _handlers[keyCode] = _handlers[keyCode].filter(function (record) {
+      const mods = len > 1 ? getMods(_modifier, unbindKeys) : [];
+      _handlers[keyCode] = _handlers[keyCode].filter(record => {
         // 通过函数判断，是否解除绑定，函数相等直接返回
-        var isMatchingMethod = method ? record.method === method : true;
+        const isMatchingMethod = method ? record.method === method : true;
         return !(isMatchingMethod && record.scope === scope && compareArray(record.mods, mods));
       });
     });
@@ -344,13 +334,13 @@
     if (handler.element !== element) {
       return;
     }
-    var modifiersMatch;
+    let modifiersMatch;
 
     // 看它是否在当前范围
     if (handler.scope === scope || handler.scope === 'all') {
       // 检查是否匹配修饰符（如果有返回true）
       modifiersMatch = handler.mods.length > 0;
-      for (var y in _mods) {
+      for (const y in _mods) {
         if (Object.prototype.hasOwnProperty.call(_mods, y)) {
           if (!_mods[y] && handler.mods.indexOf(+y) > -1 || _mods[y] && handler.mods.indexOf(+y) === -1) {
             modifiersMatch = false;
@@ -373,8 +363,8 @@
 
   // 处理keydown事件
   function dispatch(event, element) {
-    var asterisk = _handlers['*'];
-    var key = event.keyCode || event.which || event.charCode;
+    const asterisk = _handlers['*'];
+    let key = event.keyCode || event.which || event.charCode;
 
     // 表单控件过滤 默认表单控件不触发快捷键
     if (!hotkeys.filter.call(this, event)) return;
@@ -394,8 +384,8 @@
      * Jest test cases are required.
      * ===============================
      */
-    ['ctrlKey', 'altKey', 'shiftKey', 'metaKey'].forEach(function (keyName) {
-      var keyNum = modifierMap[keyName];
+    ['ctrlKey', 'altKey', 'shiftKey', 'metaKey'].forEach(keyName => {
+      const keyNum = modifierMap[keyName];
       if (event[keyName] && _downKeys.indexOf(keyNum) === -1) {
         _downKeys.push(keyNum);
       } else if (!event[keyName] && _downKeys.indexOf(keyNum) > -1) {
@@ -418,14 +408,14 @@
       _mods[key] = true;
 
       // 将特殊字符的key注册到 hotkeys 上
-      for (var k in _modifier) {
+      for (const k in _modifier) {
         if (_modifier[k] === key) hotkeys[k] = true;
       }
       if (!asterisk) return;
     }
 
     // 将 modifierMap 里面的修饰键绑定到 event 中
-    for (var e in _mods) {
+    for (const e in _mods) {
       if (Object.prototype.hasOwnProperty.call(_mods, e)) {
         _mods[e] = event[modifierMap[e]];
       }
@@ -448,10 +438,10 @@
     }
 
     // 获取范围 默认为 `all`
-    var scope = getScope();
+    const scope = getScope();
     // 对任何快捷键都需要做的处理
     if (asterisk) {
-      for (var i = 0; i < asterisk.length; i++) {
+      for (let i = 0; i < asterisk.length; i++) {
         if (asterisk[i].scope === scope && (event.type === 'keydown' && asterisk[i].keydown || event.type === 'keyup' && asterisk[i].keyup)) {
           eventHandler(event, asterisk[i], scope, element);
         }
@@ -459,14 +449,16 @@
     }
     // key 不在 _handlers 中返回
     if (!(key in _handlers)) return;
-    for (var _i = 0; _i < _handlers[key].length; _i++) {
-      if (event.type === 'keydown' && _handlers[key][_i].keydown || event.type === 'keyup' && _handlers[key][_i].keyup) {
-        if (_handlers[key][_i].key) {
-          var record = _handlers[key][_i];
-          var splitKey = record.splitKey;
-          var keyShortcut = record.key.split(splitKey);
-          var _downKeysCurrent = []; // 记录当前按键键值
-          for (var a = 0; a < keyShortcut.length; a++) {
+    for (let i = 0; i < _handlers[key].length; i++) {
+      if (event.type === 'keydown' && _handlers[key][i].keydown || event.type === 'keyup' && _handlers[key][i].keyup) {
+        if (_handlers[key][i].key) {
+          const record = _handlers[key][i];
+          const {
+            splitKey
+          } = record;
+          const keyShortcut = record.key.split(splitKey);
+          const _downKeysCurrent = []; // 记录当前按键键值
+          for (let a = 0; a < keyShortcut.length; a++) {
             _downKeysCurrent.push(code(keyShortcut[a]));
           }
           if (_downKeysCurrent.sort().join('') === _downKeys.sort().join('')) {
@@ -484,15 +476,16 @@
   }
   function hotkeys(key, option, method) {
     _downKeys = [];
-    var keys = getKeys(key); // 需要处理的快捷键列表
-    var mods = [];
-    var scope = 'all'; // scope默认为all，所有范围都有效
-    var element = document; // 快捷键事件绑定节点
-    var i = 0;
-    var keyup = false;
-    var keydown = true;
-    var splitKey = '+';
-    var capture = false;
+    const keys = getKeys(key); // 需要处理的快捷键列表
+    let mods = [];
+    let scope = 'all'; // scope默认为all，所有范围都有效
+    let element = document; // 快捷键事件绑定节点
+    let i = 0;
+    let keyup = false;
+    let keydown = true;
+    let splitKey = '+';
+    let capture = false;
+    let single = false; // 单个callback
 
     // 对为设定范围的判断
     if (method === undefined && typeof option === 'function') {
@@ -505,9 +498,8 @@
       if (option.keydown !== undefined) keydown = option.keydown; // eslint-disable-line
       if (option.capture !== undefined) capture = option.capture; // eslint-disable-line
       if (typeof option.splitKey === 'string') splitKey = option.splitKey; // eslint-disable-line
-      if (option.singleton === true) ; // eslint-disable-line
+      if (option.single === true) single = true; // eslint-disable-line
     }
-
     if (typeof option === 'string') scope = option;
 
     // 对于每个快捷键进行处理
@@ -524,72 +516,72 @@
 
       // 判断key是否在_handlers中，不在就赋一个空数组
       if (!(key in _handlers)) _handlers[key] = [];
+      // 如果只允许单个callback，重新设置_handlers
+      if (single) _handlers[key] = [];
       _handlers[key].push({
-        keyup: keyup,
-        keydown: keydown,
-        scope: scope,
-        mods: mods,
+        keyup,
+        keydown,
+        scope,
+        mods,
         shortcut: keys[i],
-        method: method,
+        method,
         key: keys[i],
-        splitKey: splitKey,
-        element: element
+        splitKey,
+        element
       });
     }
     // 在全局document上设置快捷键
     if (typeof element !== 'undefined' && !isElementBind(element) && window) {
       elementHasBindEvent.push(element);
-      addEvent(element, 'keydown', function (e) {
+      addEvent(element, 'keydown', e => {
         dispatch(e, element);
       }, capture);
       if (!winListendFocus) {
         winListendFocus = true;
-        addEvent(window, 'focus', function () {
+        addEvent(window, 'focus', () => {
           _downKeys = [];
         }, capture);
       }
-      addEvent(element, 'keyup', function (e) {
+      addEvent(element, 'keyup', e => {
         dispatch(e, element);
         clearModifier(e);
       }, capture);
     }
   }
   function trigger(shortcut) {
-    var scope = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'all';
-    Object.keys(_handlers).forEach(function (key) {
-      var dataList = _handlers[key].filter(function (item) {
-        return item.scope === scope && item.shortcut === shortcut;
-      });
-      dataList.forEach(function (data) {
+    let scope = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'all';
+    Object.keys(_handlers).forEach(key => {
+      const dataList = _handlers[key].filter(item => item.scope === scope && item.shortcut === shortcut);
+      dataList.forEach(data => {
         if (data && data.method) {
           data.method();
         }
       });
     });
   }
-  var _api = {
-    getPressedKeyString: getPressedKeyString,
-    setScope: setScope,
-    getScope: getScope,
-    deleteScope: deleteScope,
-    getPressedKeyCodes: getPressedKeyCodes,
-    getAllKeyCodes: getAllKeyCodes,
-    isPressed: isPressed,
-    filter: filter,
-    trigger: trigger,
-    unbind: unbind,
+  const _api = {
+    getPressedKeyString,
+    setScope,
+    getScope,
+    deleteScope,
+    getPressedKeyCodes,
+    getAllKeyCodes,
+    isPressed,
+    filter,
+    trigger,
+    unbind,
     keyMap: _keyMap,
     modifier: _modifier,
-    modifierMap: modifierMap
+    modifierMap
   };
-  for (var a in _api) {
+  for (const a in _api) {
     if (Object.prototype.hasOwnProperty.call(_api, a)) {
       hotkeys[a] = _api[a];
     }
   }
   if (typeof window !== 'undefined') {
-    var _hotkeys = window.hotkeys;
-    hotkeys.noConflict = function (deep) {
+    const _hotkeys = window.hotkeys;
+    hotkeys.noConflict = deep => {
       if (deep && window.hotkeys === hotkeys) {
         window.hotkeys = _hotkeys;
       }
diff --git a/dist/hotkeys.min.js b/dist/hotkeys.min.js
index 68379a49..2cfd2e65 100644
--- a/dist/hotkeys.min.js
+++ b/dist/hotkeys.min.js
@@ -1,2 +1,2 @@
-/*! hotkeys-js v3.12.2 | MIT © 2023 kenny wong <wowohoo@qq.com> https://jaywcjlove.github.io/hotkeys-js */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e="undefined"!=typeof globalThis?globalThis:e||self).hotkeys=t()}(this,function(){"use strict";var e="undefined"!=typeof navigator&&0<navigator.userAgent.toLowerCase().indexOf("firefox");function p(e,t,n,o){e.addEventListener?e.addEventListener(t,n,o):e.attachEvent&&e.attachEvent("on".concat(t),function(){n(window.event)})}function d(e,t){for(var n=t.slice(0,t.length-1),o=0;o<n.length;o++)n[o]=e[n[o].toLowerCase()];return n}function y(e){for(var t=(e=(e="string"!=typeof e?"":e).replace(/\s/g,"")).split(","),n=t.lastIndexOf("");0<=n;)t[n-1]+=",",t.splice(n,1),n=t.lastIndexOf("");return t}for(var o={backspace:8,"\u232b":8,tab:9,clear:12,enter:13,"\u21a9":13,return:13,esc:27,escape:27,space:32,left:37,up:38,right:39,down:40,del:46,delete:46,ins:45,insert:45,home:36,end:35,pageup:33,pagedown:34,capslock:20,num_0:96,num_1:97,num_2:98,num_3:99,num_4:100,num_5:101,num_6:102,num_7:103,num_8:104,num_9:105,num_multiply:106,num_add:107,num_enter:108,num_subtract:109,num_decimal:110,num_divide:111,"\u21ea":20,",":188,".":190,"/":191,"`":192,"-":e?173:189,"=":e?61:187,";":e?59:186,"'":222,"[":219,"]":221,"\\":220},h={"\u21e7":16,shift:16,"\u2325":18,alt:18,option:18,"\u2303":17,ctrl:17,control:17,"\u2318":91,cmd:91,command:91},m={16:"shiftKey",18:"altKey",17:"ctrlKey",91:"metaKey",shiftKey:16,ctrlKey:17,altKey:18,metaKey:91},g={16:!1,18:!1,17:!1,91:!1},v={},t=1;t<20;t++)o["f".concat(t)]=111+t;var k=[],w=!1,n="all",O=[],K=function(e){return o[e.toLowerCase()]||h[e.toLowerCase()]||e.toUpperCase().charCodeAt(0)};function i(e){n=e||"all"}function b(){return n||"all"}function c(e){var r=e.scope,i=e.method,t=e.splitKey,c=void 0===t?"+":t;y(e.key).forEach(function(e){var t,e=e.split(c),n=e.length,o=e[n-1],o="*"===o?"*":K(o);v[o]&&(r=r||b(),t=1<n?d(h,e):[],v[o]=v[o].filter(function(e){return!((!i||e.method===i)&&e.scope===r&&function(e,t){for(var n=e.length<t.length?t:e,o=e.length<t.length?e:t,r=!0,i=0;i<n.length;i++)~o.indexOf(n[i])||(r=!1);return r}(e.mods,t))}))})}function x(e,t,n,o){var r;if(t.element===o&&(t.scope===n||"all"===t.scope)){for(var i in r=0<t.mods.length,g)Object.prototype.hasOwnProperty.call(g,i)&&(!g[i]&&~t.mods.indexOf(+i)||g[i]&&!~t.mods.indexOf(+i))&&(r=!1);(0!==t.mods.length||g[16]||g[18]||g[17]||g[91])&&!r&&"*"!==t.shortcut||(t.keys=[],t.keys=t.keys.concat(k),!1===t.method(e,t)&&(e.preventDefault?e.preventDefault():e.returnValue=!1,e.stopPropagation&&e.stopPropagation(),e.cancelBubble)&&(e.cancelBubble=!0))}}function C(n,e){var t=v["*"],o=n.keyCode||n.which||n.charCode;if(E.filter.call(this,n)){if(~k.indexOf(o=93!==o&&224!==o?o:91)||229===o||k.push(o),["ctrlKey","altKey","shiftKey","metaKey"].forEach(function(e){var t=m[e];n[e]&&!~k.indexOf(t)?k.push(t):!n[e]&&~k.indexOf(t)?k.splice(k.indexOf(t),1):"metaKey"!==e||!n[e]||3!==k.length||n.ctrlKey||n.shiftKey||n.altKey||(k=k.slice(k.indexOf(t)))}),o in g){for(var r in g[o]=!0,h)h[r]===o&&(E[r]=!0);if(!t)return}for(var i in g)Object.prototype.hasOwnProperty.call(g,i)&&(g[i]=n[m[i]]);n.getModifierState&&(!n.altKey||n.ctrlKey)&&n.getModifierState("AltGraph")&&(~k.indexOf(17)||k.push(17),~k.indexOf(18)||k.push(18),g[17]=!0,g[18]=!0);var c=b();if(t)for(var f=0;f<t.length;f++)t[f].scope===c&&("keydown"===n.type&&t[f].keydown||"keyup"===n.type&&t[f].keyup)&&x(n,t[f],c,e);if(o in v)for(var a=0;a<v[o].length;a++)if(("keydown"===n.type&&v[o][a].keydown||"keyup"===n.type&&v[o][a].keyup)&&v[o][a].key){for(var s=v[o][a],l=s.key.split(s.splitKey),u=[],p=0;p<l.length;p++)u.push(K(l[p]));u.sort().join("")===k.sort().join("")&&x(n,s,c,e)}}}function E(e,t,n){k=[];var o=y(e),r=[],i="all",c=document,f=0,a=!1,s=!0,l="+",u=!1;for(void 0===n&&"function"==typeof t&&(n=t),"[object Object]"===Object.prototype.toString.call(t)&&(t.scope&&(i=t.scope),t.element&&(c=t.element),t.keyup&&(a=t.keyup),void 0!==t.keydown&&(s=t.keydown),void 0!==t.capture&&(u=t.capture),"string"==typeof t.splitKey)&&(l=t.splitKey),"string"==typeof t&&(i=t);f<o.length;f++)r=[],1<(e=o[f].split(l)).length&&(r=d(h,e)),(e="*"===(e=e[e.length-1])?"*":K(e))in v||(v[e]=[]),v[e].push({keyup:a,keydown:s,scope:i,mods:r,shortcut:o[f],method:n,key:o[f],splitKey:l,element:c});void 0!==c&&(t=c,!~O.indexOf(t))&&window&&(O.push(c),p(c,"keydown",function(e){C(e,c)},u),w||(w=!0,p(window,"focus",function(){k=[]},u)),p(c,"keyup",function(e){C(e,c);var t=e.keyCode||e.which||e.charCode,n=k.indexOf(t);if(n<0||k.splice(n,1),e.key&&"meta"==e.key.toLowerCase()&&k.splice(0,k.length),(t=93!==t&&224!==t?t:91)in g)for(var o in g[t]=!1,h)h[o]===t&&(E[o]=!1)},u))}var r,f,a={getPressedKeyString:function(){return k.map(function(e){return n=e,Object.keys(o).find(function(e){return o[e]===n})||(t=e,Object.keys(h).find(function(e){return h[e]===t}))||String.fromCharCode(e);var t,n})},setScope:i,getScope:b,deleteScope:function(e,t){var n,o,r;for(r in e=e||b(),v)if(Object.prototype.hasOwnProperty.call(v,r))for(n=v[r],o=0;o<n.length;)n[o].scope===e?n.splice(o,1):o++;b()===e&&i(t||"all")},getPressedKeyCodes:function(){return k.slice(0)},getAllKeyCodes:function(){var n=[];return Object.keys(v).forEach(function(e){v[e].forEach(function(e){var t=e.key;n.push({scope:e.scope,shortcut:e.shortcut,mods:e.mods,keys:t.split("+").map(function(e){return K(e)})})})}),n},isPressed:function(e){return"string"==typeof e&&(e=K(e)),!!~k.indexOf(e)},filter:function(e){var t=(e=e.target||e.srcElement).tagName;return!e.isContentEditable&&("INPUT"!==t&&"TEXTAREA"!==t&&"SELECT"!==t||e.readOnly)?!0:!1},trigger:function(t){var n=1<arguments.length&&void 0!==arguments[1]?arguments[1]:"all";Object.keys(v).forEach(function(e){v[e].filter(function(e){return e.scope===n&&e.shortcut===t}).forEach(function(e){e&&e.method&&e.method()})})},unbind:function(e){if(void 0===e)Object.keys(v).forEach(function(e){return delete v[e]});else if(Array.isArray(e))e.forEach(function(e){e.key&&c(e)});else if("object"==typeof e)e.key&&c(e);else if("string"==typeof e){for(var t=arguments.length,n=Array(1<t?t-1:0),o=1;o<t;o++)n[o-1]=arguments[o];var r=n[0],i=n[1];"function"==typeof r&&(i=r,r=""),c({key:e,scope:r,method:i,splitKey:"+"})}},keyMap:o,modifier:h,modifierMap:m};for(r in a)Object.prototype.hasOwnProperty.call(a,r)&&(E[r]=a[r]);return"undefined"!=typeof window&&(f=window.hotkeys,E.noConflict=function(e){return e&&window.hotkeys===E&&(window.hotkeys=f),E},window.hotkeys=E),E});
\ No newline at end of file
+/*! hotkeys-js v3.13.0 | MIT © 2023 kenny wong <wowohoo@qq.com> https://jaywcjlove.github.io/hotkeys-js */
+!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e="undefined"!=typeof globalThis?globalThis:e||self).hotkeys=t()}(this,function(){"use strict";var e="undefined"!=typeof navigator&&0<navigator.userAgent.toLowerCase().indexOf("firefox");function y(e,t,n,o){e.addEventListener?e.addEventListener(t,n,o):e.attachEvent&&e.attachEvent("on".concat(t),()=>{n(window.event)})}function u(t,e){var n=e.slice(0,e.length-1);for(let e=0;e<n.length;e++)n[e]=t[n[e].toLowerCase()];return n}function h(e){var t=(e=(e="string"!=typeof e?"":e).replace(/\s/g,"")).split(",");let n=t.lastIndexOf("");for(;0<=n;)t[n-1]+=",",t.splice(n,1),n=t.lastIndexOf("");return t}const o={backspace:8,"\u232b":8,tab:9,clear:12,enter:13,"\u21a9":13,return:13,esc:27,escape:27,space:32,left:37,up:38,right:39,down:40,del:46,delete:46,ins:45,insert:45,home:36,end:35,pageup:33,pagedown:34,capslock:20,num_0:96,num_1:97,num_2:98,num_3:99,num_4:100,num_5:101,num_6:102,num_7:103,num_8:104,num_9:105,num_multiply:106,num_add:107,num_enter:108,num_subtract:109,num_decimal:110,num_divide:111,"\u21ea":20,",":188,".":190,"/":191,"`":192,"-":e?173:189,"=":e?61:187,";":e?59:186,"'":222,"[":219,"]":221,"\\":220},m={"\u21e7":16,shift:16,"\u2325":18,alt:18,option:18,"\u2303":17,ctrl:17,control:17,"\u2318":91,cmd:91,command:91},p={16:"shiftKey",18:"altKey",17:"ctrlKey",91:"metaKey",shiftKey:16,ctrlKey:17,altKey:18,metaKey:91},g={16:!1,18:!1,17:!1,91:!1},k={};for(let e=1;e<20;e++)o["f".concat(e)]=111+e;let w=[],v=!1,t="all";const O=[],K=e=>o[e.toLowerCase()]||m[e.toLowerCase()]||e.toUpperCase().charCodeAt(0);function i(e){t=e||"all"}function d(){return t||"all"}const s=e=>{let{key:t,scope:r,method:i,splitKey:s="+"}=e;h(t).forEach(e=>{var e=e.split(s),t=e.length,n=e[t-1],n="*"===n?"*":K(n);if(k[n]){r=r||d();const o=1<t?u(m,e):[];k[n]=k[n].filter(e=>{return!((!i||e.method===i)&&e.scope===r&&function(e,t){var n=e.length<t.length?t:e,o=e.length<t.length?e:t;let r=!0;for(let e=0;e<n.length;e++)~o.indexOf(n[e])||(r=!1);return r}(e.mods,o))})}})};function b(t,n,o,e){if(n.element===e){let e;if(n.scope===o||"all"===n.scope){e=0<n.mods.length;for(const r in g)Object.prototype.hasOwnProperty.call(g,r)&&(!g[r]&&~n.mods.indexOf(+r)||g[r]&&!~n.mods.indexOf(+r))&&(e=!1);(0!==n.mods.length||g[16]||g[18]||g[17]||g[91])&&!e&&"*"!==n.shortcut||(n.keys=[],n.keys=n.keys.concat(w),!1===n.method(t,n)&&(t.preventDefault?t.preventDefault():t.returnValue=!1,t.stopPropagation&&t.stopPropagation(),t.cancelBubble)&&(t.cancelBubble=!0))}}}function x(n,t){var o=k["*"];let r=n.keyCode||n.which||n.charCode;if(C.filter.call(this,n)){if(93!==r&&224!==r||(r=91),~w.indexOf(r)||229===r||w.push(r),["ctrlKey","altKey","shiftKey","metaKey"].forEach(e=>{var t=p[e];n[e]&&!~w.indexOf(t)?w.push(t):!n[e]&&~w.indexOf(t)?w.splice(w.indexOf(t),1):"metaKey"!==e||!n[e]||3!==w.length||n.ctrlKey||n.shiftKey||n.altKey||(w=w.slice(w.indexOf(t)))}),r in g){g[r]=!0;for(const e in m)m[e]===r&&(C[e]=!0);if(!o)return}for(const a in g)Object.prototype.hasOwnProperty.call(g,a)&&(g[a]=n[p[a]]);n.getModifierState&&(!n.altKey||n.ctrlKey)&&n.getModifierState("AltGraph")&&(~w.indexOf(17)||w.push(17),~w.indexOf(18)||w.push(18),g[17]=!0,g[18]=!0);var i=d();if(o)for(let e=0;e<o.length;e++)o[e].scope===i&&("keydown"===n.type&&o[e].keydown||"keyup"===n.type&&o[e].keyup)&&b(n,o[e],i,t);if(r in k)for(let e=0;e<k[r].length;e++)if(("keydown"===n.type&&k[r][e].keydown||"keyup"===n.type&&k[r][e].keyup)&&k[r][e].key){var s=k[r][e],l=s["splitKey"],c=s.key.split(l),f=[];for(let e=0;e<c.length;e++)f.push(K(c[e]));f.sort().join("")===w.sort().join("")&&b(n,s,i,t)}}}function C(e,t,n){w=[];var o=h(e);let r=[],i="all",s=document,l=0,c=!1,f=!0,a="+",p=!1,d=!1;for(void 0===n&&"function"==typeof t&&(n=t),"[object Object]"===Object.prototype.toString.call(t)&&(t.scope&&(i=t.scope),t.element&&(s=t.element),t.keyup&&(c=t.keyup),void 0!==t.keydown&&(f=t.keydown),void 0!==t.capture&&(p=t.capture),"string"==typeof t.splitKey&&(a=t.splitKey),!0===t.single)&&(d=!0),"string"==typeof t&&(i=t);l<o.length;l++)e=o[l].split(a),r=[],1<e.length&&(r=u(m,e)),(e="*"===(e=e[e.length-1])?"*":K(e))in k||(k[e]=[]),d&&(k[e]=[]),k[e].push({keyup:c,keydown:f,scope:i,mods:r,shortcut:o[l],method:n,key:o[l],splitKey:a,element:s});void 0!==s&&(t=s,!~O.indexOf(t))&&window&&(O.push(s),y(s,"keydown",e=>{x(e,s)},p),v||(v=!0,y(window,"focus",()=>{w=[]},p)),y(s,"keyup",t=>{x(t,s);{let e=t.keyCode||t.which||t.charCode;var n=w.indexOf(e);if(n<0||w.splice(n,1),t.key&&"meta"==t.key.toLowerCase()&&w.splice(0,w.length),(e=93!==e&&224!==e?e:91)in g){g[e]=!1;for(const o in m)m[o]===e&&(C[o]=!1)}}},p))}var n={getPressedKeyString:function(){return w.map(e=>{return n=e,Object.keys(o).find(e=>o[e]===n)||(t=e,Object.keys(m).find(e=>m[e]===t))||String.fromCharCode(e);var t,n})},setScope:i,getScope:d,deleteScope:function(e,t){var n;let o;e=e||d();for(const r in k)if(Object.prototype.hasOwnProperty.call(k,r))for(n=k[r],o=0;o<n.length;)n[o].scope===e?n.splice(o,1):o++;d()===e&&i(t||"all")},getPressedKeyCodes:function(){return w.slice(0)},getAllKeyCodes:function(){const r=[];return Object.keys(k).forEach(e=>{k[e].forEach(e=>{var{key:e,scope:t,mods:n,shortcut:o}=e;r.push({scope:t,shortcut:o,mods:n,keys:e.split("+").map(e=>K(e))})})}),r},isPressed:function(e){return"string"==typeof e&&(e=K(e)),!!~w.indexOf(e)},filter:function(e){var t=(e=e.target||e.srcElement)["tagName"];let n=!e.isContentEditable&&("INPUT"!==t&&"TEXTAREA"!==t&&"SELECT"!==t||e.readOnly)?!0:!1;return n},trigger:function(t){let n=1<arguments.length&&void 0!==arguments[1]?arguments[1]:"all";Object.keys(k).forEach(e=>{k[e].filter(e=>e.scope===n&&e.shortcut===t).forEach(e=>{e&&e.method&&e.method()})})},unbind:function(n){if(void 0===n)Object.keys(k).forEach(e=>delete k[e]);else if(Array.isArray(n))n.forEach(e=>{e.key&&s(e)});else if("object"==typeof n)n.key&&s(n);else if("string"==typeof n){for(var o=arguments.length,r=Array(1<o?o-1:0),i=1;i<o;i++)r[i-1]=arguments[i];let[e,t]=r;"function"==typeof e&&(t=e,e=""),s({key:n,scope:e,method:t,splitKey:"+"})}},keyMap:o,modifier:m,modifierMap:p};for(const r in n)Object.prototype.hasOwnProperty.call(n,r)&&(C[r]=n[r]);if("undefined"!=typeof window){const l=window.hotkeys;C.noConflict=e=>(e&&window.hotkeys===C&&(window.hotkeys=l),C),window.hotkeys=C}return C});
\ No newline at end of file
diff --git a/package.json b/package.json
index eb547be8..739d0f9e 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "hotkeys-js",
   "description": "A simple micro-library for defining and dispatching keyboard shortcuts. It has no dependencies.",
-  "version": "3.12.2",
+  "version": "3.13.0",
   "main": "index.js",
   "types": "index.d.ts",
   "module": "dist/hotkeys.esm.js",