\n * ```\n */\nexports.default = {\n bind: function bind(el, binding, vnode) {\n nodeList.push(el);\n var id = seed++;\n el[ctx] = {\n id: id,\n documentHandler: createDocumentHandler(el, binding, vnode),\n methodName: binding.expression,\n bindingFn: binding.value\n };\n },\n update: function update(el, binding, vnode) {\n el[ctx].documentHandler = createDocumentHandler(el, binding, vnode);\n el[ctx].methodName = binding.expression;\n el[ctx].bindingFn = binding.value;\n },\n unbind: function unbind(el) {\n var len = nodeList.length;\n\n for (var i = 0; i < len; i++) {\n if (nodeList[i][ctx].id === el[ctx].id) {\n nodeList.splice(i, 1);\n break;\n }\n }\n delete el[ctx];\n }\n};","\"use strict\";\n\nexports.__esModule = true;\n\nvar _assign = require(\"../core-js/object/assign\");\n\nvar _assign2 = _interopRequireDefault(_assign);\n\nfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }\n\nexports.default = _assign2.default || function (target) {\n for (var i = 1; i < arguments.length; i++) {\n var source = arguments[i];\n\n for (var key in source) {\n if (Object.prototype.hasOwnProperty.call(source, key)) {\n target[key] = source[key];\n }\n }\n }\n\n return target;\n};","'use strict';\n\nexports.__esModule = true;\n\nvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nexports.isVNode = isVNode;\n\nvar _util = require('element-ui/lib/utils/util');\n\nfunction isVNode(node) {\n return node !== null && (typeof node === 'undefined' ? 'undefined' : _typeof(node)) === 'object' && (0, _util.hasOwn)(node, 'componentOptions');\n};","var global = require('../internals/global');\n\nmodule.exports = global;\n","exports.nextTick = function nextTick(fn) {\n var args = Array.prototype.slice.call(arguments);\n args.shift();\n setTimeout(function () {\n fn.apply(null, args);\n }, 0);\n};\n\nexports.platform = exports.arch = \nexports.execPath = exports.title = 'browser';\nexports.pid = 1;\nexports.browser = true;\nexports.env = {};\nexports.argv = [];\n\nexports.binding = function (name) {\n\tthrow new Error('No such module. (Possibly not yet loaded)')\n};\n\n(function () {\n var cwd = '/';\n var path;\n exports.cwd = function () { return cwd };\n exports.chdir = function (dir) {\n if (!path) path = require('path');\n cwd = path.resolve(dir, cwd);\n };\n})();\n\nexports.exit = exports.kill = \nexports.umask = exports.dlopen = \nexports.uptime = exports.memoryUsage = \nexports.uvCounters = function() {};\nexports.features = {};\n","var parse = require(\"./parse.js\"),\n compile = require(\"./compile.js\");\n\nmodule.exports = function nthCheck(formula){\n\treturn compile(parse(formula));\n};\n\nmodule.exports.parse = parse;\nmodule.exports.compile = compile;","var fails = require('../internals/fails');\nvar classof = require('../internals/classof-raw');\n\nvar split = ''.split;\n\n// fallback for non-array-like ES3 and non-enumerable old V8 strings\nmodule.exports = fails(function () {\n // throws an error in rhino, see https://github.com/mozilla/rhino/issues/346\n // eslint-disable-next-line no-prototype-builtins\n return !Object('z').propertyIsEnumerable(0);\n}) ? function (it) {\n return classof(it) == 'String' ? split.call(it, '') : Object(it);\n} : Object;\n","'use strict';\n\n/**\n * Module dependencies.\n */\n\nvar mensch = require('mensch');\nvar own = {}.hasOwnProperty;\nvar Selector = require('./selector');\nvar Property = require('./property');\n\nexports.Selector = Selector;\nexports.Property = Property;\n\n/**\n * Returns an array of the selectors.\n *\n * @license Sizzle CSS Selector Engine - MIT\n * @param {String} selectorText from mensch\n * @api public\n */\n\nexports.extract = function extract(selectorText) {\n var attr = 0;\n var sels = [];\n var sel = '';\n\n for (var i = 0, l = selectorText.length; i < l; i++) {\n var c = selectorText.charAt(i);\n\n if (attr) {\n if (']' === c || ')' === c) { attr--; }\n sel += c;\n } else {\n if (',' === c) {\n sels.push(sel);\n sel = '';\n } else {\n if ('[' === c || '(' === c) { attr++; }\n if (sel.length || (c !== ',' && c !== '\\n' && c !== ' ')) { sel += c; }\n }\n }\n }\n\n if (sel.length) {\n sels.push(sel);\n }\n\n return sels;\n};\n\n/**\n * Returns a parse tree for a CSS source.\n * If it encounters multiple selectors separated by a comma, it splits the\n * tree.\n *\n * @param {String} css source\n * @api public\n */\n\nexports.parseCSS = function(css) {\n var parsed = mensch.parse(css, {position: true, comments: true});\n var rules = typeof parsed.stylesheet != 'undefined' && parsed.stylesheet.rules ? parsed.stylesheet.rules : [];\n var ret = [];\n\n for (var i = 0, l = rules.length; i < l; i++) {\n if (rules[i].type == 'rule') {\n var rule = rules[i];\n var selectors = rule.selectors;\n\n for (var ii = 0, ll = selectors.length; ii < ll; ii++) {\n ret.push([selectors[ii], rule.declarations]);\n }\n }\n }\n\n return ret;\n};\n\n/**\n * Returns preserved text for a CSS source.\n *\n * @param {String} css source\n * @param {Object} options\n * @api public\n */\n\nexports.getPreservedText = function(css, options, ignoredPseudos) {\n var parsed = mensch.parse(css, {position: true, comments: true});\n var rules = typeof parsed.stylesheet != 'undefined' && parsed.stylesheet.rules ? parsed.stylesheet.rules : [];\n var preserved = [];\n var lastStart = null;\n\n for (var i = rules.length - 1; i >= 0; i--) {\n if ((options.fontFaces && rules[i].type === 'font-face') ||\n (options.mediaQueries && rules[i].type === 'media') ||\n (options.keyFrames && rules[i].type === 'keyframes') ||\n (options.pseudos && rules[i].selectors && this.matchesPseudo(rules[i].selectors[0], ignoredPseudos))) {\n preserved.unshift(\n mensch.stringify(\n { stylesheet: { rules: [ rules[i] ] }},\n { comments: false, indentation: ' ' }\n )\n );\n }\n lastStart = rules[i].position.start;\n }\n\n if (preserved.length === 0) {\n return false;\n }\n return '\\n' + preserved.join('\\n') + '\\n';\n};\n\nexports.normalizeLineEndings = function(text) {\n return text.replace(/\\r\\n/g, '\\n').replace(/\\n/g, '\\r\\n');\n};\n\nexports.matchesPseudo = function(needle, haystack) {\n return haystack.find(function (element) {\n return needle.indexOf(element) > -1;\n })\n}\n\n/**\n * Compares two specificity vectors, returning the winning one.\n *\n * @param {Array} vector a\n * @param {Array} vector b\n * @return {Array}\n * @api public\n */\n\nexports.compareFunc = function(a, b) {\n var min = Math.min(a.length, b.length);\n for (var i = 0; i < min; i++) {\n if (a[i] === b[i]) { continue; }\n if (a[i] > b[i]) { return 1; }\n return -1;\n }\n\n return a.length - b.length;\n};\n\nexports.compare = function(a, b) {\n return exports.compareFunc(a, b) == 1 ? a : b;\n};\n\nexports.extend = function(obj, src) {\n for (var key in src) {\n if (own.call(src, key)) {\n obj[key] = src[key];\n }\n }\n return obj;\n};\n\nexports.getDefaultOptions = function(options) {\n var result = exports.extend({\n extraCss: '',\n insertPreservedExtraCss: true,\n applyStyleTags: true,\n removeStyleTags: true,\n preserveMediaQueries: true,\n preserveFontFaces: true,\n preserveKeyFrames: true,\n preservePseudos: true,\n applyWidthAttributes: true,\n applyHeightAttributes: true,\n applyAttributesTableElements: true,\n url: ''\n }, options);\n\n result.webResources = result.webResources || {};\n\n return result;\n};\n","var wellKnownSymbol = require('../internals/well-known-symbol');\nvar create = require('../internals/object-create');\nvar definePropertyModule = require('../internals/object-define-property');\n\nvar UNSCOPABLES = wellKnownSymbol('unscopables');\nvar ArrayPrototype = Array.prototype;\n\n// Array.prototype[@@unscopables]\n// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables\nif (ArrayPrototype[UNSCOPABLES] == undefined) {\n definePropertyModule.f(ArrayPrototype, UNSCOPABLES, {\n configurable: true,\n value: create(null)\n });\n}\n\n// add a key to Array.prototype[@@unscopables]\nmodule.exports = function (key) {\n ArrayPrototype[UNSCOPABLES][key] = true;\n};\n","var global = require('../internals/global');\n\nmodule.exports = function (a, b) {\n var console = global.console;\n if (console && console.error) {\n arguments.length === 1 ? console.error(a) : console.error(a, b);\n }\n};\n","var isObject = require('../internals/is-object');\nvar classof = require('../internals/classof-raw');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar MATCH = wellKnownSymbol('match');\n\n// `IsRegExp` abstract operation\n// https://tc39.github.io/ecma262/#sec-isregexp\nmodule.exports = function (it) {\n var isRegExp;\n return isObject(it) && ((isRegExp = it[MATCH]) !== undefined ? !!isRegExp : classof(it) == 'RegExp');\n};\n","'use strict';\n\nvar cheerio = require('./lib/cheerio');\nvar makeJuiceClient = require('./lib/inline');\n\n/**\n * Note that makeJuiceClient will take a base object (in this case a function) and enhance it\n * with a lot of useful properties and functions.\n *\n * This client adopts cheerio as a DOM parser and adds an \"inlineContent\" function that let\n * users to specify the CSS to be inlined instead of extracting it from the html.\n * \n * The weird \"makeJuiceClient\" behaviour is there in order to keep backward API compatibility.\n */\nvar juiceClient = makeJuiceClient(function(html,options) {\n return cheerio(html, { xmlMode: options && options.xmlMode}, juiceDocument, [options]);\n});\n\nvar juiceDocument = function(html, options) {\n return juiceClient.juiceDocument(html, options);\n}\n\njuiceClient.inlineContent = function(html, css, options) {\n return cheerio(html, { xmlMode: options && options.xmlMode}, juiceClient.inlineDocument, [css, options]);\n};\n\nmodule.exports = juiceClient;\n","'use strict';\nvar fixRegExpWellKnownSymbolLogic = require('../internals/fix-regexp-well-known-symbol-logic');\nvar anObject = require('../internals/an-object');\nvar toLength = require('../internals/to-length');\nvar requireObjectCoercible = require('../internals/require-object-coercible');\nvar advanceStringIndex = require('../internals/advance-string-index');\nvar regExpExec = require('../internals/regexp-exec-abstract');\n\n// @@match logic\nfixRegExpWellKnownSymbolLogic('match', 1, function (MATCH, nativeMatch, maybeCallNative) {\n return [\n // `String.prototype.match` method\n // https://tc39.github.io/ecma262/#sec-string.prototype.match\n function match(regexp) {\n var O = requireObjectCoercible(this);\n var matcher = regexp == undefined ? undefined : regexp[MATCH];\n return matcher !== undefined ? matcher.call(regexp, O) : new RegExp(regexp)[MATCH](String(O));\n },\n // `RegExp.prototype[@@match]` method\n // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@match\n function (regexp) {\n var res = maybeCallNative(nativeMatch, regexp, this);\n if (res.done) return res.value;\n\n var rx = anObject(regexp);\n var S = String(this);\n\n if (!rx.global) return regExpExec(rx, S);\n\n var fullUnicode = rx.unicode;\n rx.lastIndex = 0;\n var A = [];\n var n = 0;\n var result;\n while ((result = regExpExec(rx, S)) !== null) {\n var matchStr = String(result[0]);\n A[n] = matchStr;\n if (matchStr === '') rx.lastIndex = advanceStringIndex(S, toLength(rx.lastIndex), fullUnicode);\n n++;\n }\n return n === 0 ? null : A;\n }\n ];\n});\n","'use strict';\n\nvar createError = require('./createError');\n\n/**\n * Resolve or reject a Promise based on response status.\n *\n * @param {Function} resolve A function that resolves the promise.\n * @param {Function} reject A function that rejects the promise.\n * @param {object} response The response.\n */\nmodule.exports = function settle(resolve, reject, response) {\n var validateStatus = response.config.validateStatus;\n if (!validateStatus || validateStatus(response.status)) {\n resolve(response);\n } else {\n reject(createError(\n 'Request failed with status code ' + response.status,\n response.config,\n null,\n response.request,\n response\n ));\n }\n};\n","module.exports =\n/******/ (function(modules) { // webpackBootstrap\n/******/ \t// The module cache\n/******/ \tvar installedModules = {};\n/******/\n/******/ \t// The require function\n/******/ \tfunction __webpack_require__(moduleId) {\n/******/\n/******/ \t\t// Check if module is in cache\n/******/ \t\tif(installedModules[moduleId]) {\n/******/ \t\t\treturn installedModules[moduleId].exports;\n/******/ \t\t}\n/******/ \t\t// Create a new module (and put it into the cache)\n/******/ \t\tvar module = installedModules[moduleId] = {\n/******/ \t\t\ti: moduleId,\n/******/ \t\t\tl: false,\n/******/ \t\t\texports: {}\n/******/ \t\t};\n/******/\n/******/ \t\t// Execute the module function\n/******/ \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n/******/\n/******/ \t\t// Flag the module as loaded\n/******/ \t\tmodule.l = true;\n/******/\n/******/ \t\t// Return the exports of the module\n/******/ \t\treturn module.exports;\n/******/ \t}\n/******/\n/******/\n/******/ \t// expose the modules object (__webpack_modules__)\n/******/ \t__webpack_require__.m = modules;\n/******/\n/******/ \t// expose the module cache\n/******/ \t__webpack_require__.c = installedModules;\n/******/\n/******/ \t// define getter function for harmony exports\n/******/ \t__webpack_require__.d = function(exports, name, getter) {\n/******/ \t\tif(!__webpack_require__.o(exports, name)) {\n/******/ \t\t\tObject.defineProperty(exports, name, { enumerable: true, get: getter });\n/******/ \t\t}\n/******/ \t};\n/******/\n/******/ \t// define __esModule on exports\n/******/ \t__webpack_require__.r = function(exports) {\n/******/ \t\tif(typeof Symbol !== 'undefined' && Symbol.toStringTag) {\n/******/ \t\t\tObject.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });\n/******/ \t\t}\n/******/ \t\tObject.defineProperty(exports, '__esModule', { value: true });\n/******/ \t};\n/******/\n/******/ \t// create a fake namespace object\n/******/ \t// mode & 1: value is a module id, require it\n/******/ \t// mode & 2: merge all properties of value into the ns\n/******/ \t// mode & 4: return value when already ns object\n/******/ \t// mode & 8|1: behave like require\n/******/ \t__webpack_require__.t = function(value, mode) {\n/******/ \t\tif(mode & 1) value = __webpack_require__(value);\n/******/ \t\tif(mode & 8) return value;\n/******/ \t\tif((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;\n/******/ \t\tvar ns = Object.create(null);\n/******/ \t\t__webpack_require__.r(ns);\n/******/ \t\tObject.defineProperty(ns, 'default', { enumerable: true, value: value });\n/******/ \t\tif(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));\n/******/ \t\treturn ns;\n/******/ \t};\n/******/\n/******/ \t// getDefaultExport function for compatibility with non-harmony modules\n/******/ \t__webpack_require__.n = function(module) {\n/******/ \t\tvar getter = module && module.__esModule ?\n/******/ \t\t\tfunction getDefault() { return module['default']; } :\n/******/ \t\t\tfunction getModuleExports() { return module; };\n/******/ \t\t__webpack_require__.d(getter, 'a', getter);\n/******/ \t\treturn getter;\n/******/ \t};\n/******/\n/******/ \t// Object.prototype.hasOwnProperty.call\n/******/ \t__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n/******/\n/******/ \t// __webpack_public_path__\n/******/ \t__webpack_require__.p = \"/dist/\";\n/******/\n/******/\n/******/ \t// Load entry module and return exports\n/******/ \treturn __webpack_require__(__webpack_require__.s = 59);\n/******/ })\n/************************************************************************/\n/******/ ({\n\n/***/ 0:\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, \"a\", function() { return normalizeComponent; });\n/* globals __VUE_SSR_CONTEXT__ */\n\n// IMPORTANT: Do NOT use ES2015 features in this file (except for modules).\n// This module is a runtime utility for cleaner component module output and will\n// be included in the final webpack user bundle.\n\nfunction normalizeComponent (\n scriptExports,\n render,\n staticRenderFns,\n functionalTemplate,\n injectStyles,\n scopeId,\n moduleIdentifier, /* server only */\n shadowMode /* vue-cli only */\n) {\n // Vue.extend constructor export interop\n var options = typeof scriptExports === 'function'\n ? scriptExports.options\n : scriptExports\n\n // render functions\n if (render) {\n options.render = render\n options.staticRenderFns = staticRenderFns\n options._compiled = true\n }\n\n // functional template\n if (functionalTemplate) {\n options.functional = true\n }\n\n // scopedId\n if (scopeId) {\n options._scopeId = 'data-v-' + scopeId\n }\n\n var hook\n if (moduleIdentifier) { // server build\n hook = function (context) {\n // 2.3 injection\n context =\n context || // cached call\n (this.$vnode && this.$vnode.ssrContext) || // stateful\n (this.parent && this.parent.$vnode && this.parent.$vnode.ssrContext) // functional\n // 2.2 with runInNewContext: true\n if (!context && typeof __VUE_SSR_CONTEXT__ !== 'undefined') {\n context = __VUE_SSR_CONTEXT__\n }\n // inject component styles\n if (injectStyles) {\n injectStyles.call(this, context)\n }\n // register component module identifier for async chunk inferrence\n if (context && context._registeredComponents) {\n context._registeredComponents.add(moduleIdentifier)\n }\n }\n // used by ssr in case component is cached and beforeCreate\n // never gets called\n options._ssrRegister = hook\n } else if (injectStyles) {\n hook = shadowMode\n ? function () { injectStyles.call(this, this.$root.$options.shadowRoot) }\n : injectStyles\n }\n\n if (hook) {\n if (options.functional) {\n // for template-only hot-reload because in that case the render fn doesn't\n // go through the normalizer\n options._injectStyles = hook\n // register for functioal component in vue file\n var originalRender = options.render\n options.render = function renderWithStyleInjection (h, context) {\n hook.call(context)\n return originalRender(h, context)\n }\n } else {\n // inject component registration as beforeCreate hook\n var existing = options.beforeCreate\n options.beforeCreate = existing\n ? [].concat(existing, hook)\n : [hook]\n }\n }\n\n return {\n exports: scriptExports,\n options: options\n }\n}\n\n\n/***/ }),\n\n/***/ 14:\n/***/ (function(module, exports) {\n\nmodule.exports = require(\"element-ui/lib/scrollbar\");\n\n/***/ }),\n\n/***/ 18:\n/***/ (function(module, exports) {\n\nmodule.exports = require(\"element-ui/lib/checkbox\");\n\n/***/ }),\n\n/***/ 21:\n/***/ (function(module, exports) {\n\nmodule.exports = require(\"element-ui/lib/utils/shared\");\n\n/***/ }),\n\n/***/ 26:\n/***/ (function(module, exports) {\n\nmodule.exports = require(\"babel-helper-vue-jsx-merge-props\");\n\n/***/ }),\n\n/***/ 3:\n/***/ (function(module, exports) {\n\nmodule.exports = require(\"element-ui/lib/utils/util\");\n\n/***/ }),\n\n/***/ 31:\n/***/ (function(module, exports) {\n\nmodule.exports = require(\"element-ui/lib/utils/scroll-into-view\");\n\n/***/ }),\n\n/***/ 32:\n/***/ (function(module, exports) {\n\nmodule.exports = require(\"element-ui/lib/utils/aria-utils\");\n\n/***/ }),\n\n/***/ 51:\n/***/ (function(module, exports) {\n\nmodule.exports = require(\"element-ui/lib/radio\");\n\n/***/ }),\n\n/***/ 59:\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n__webpack_require__.r(__webpack_exports__);\n\n// CONCATENATED MODULE: ./node_modules/vue-loader/lib/loaders/templateLoader.js??vue-loader-options!./node_modules/vue-loader/lib??vue-loader-options!./packages/cascader-panel/src/cascader-panel.vue?vue&type=template&id=34932346&\nvar cascader_panelvue_type_template_id_34932346_render = function() {\n var _vm = this\n var _h = _vm.$createElement\n var _c = _vm._self._c || _h\n return _c(\n \"div\",\n {\n class: [\"el-cascader-panel\", _vm.border && \"is-bordered\"],\n on: { keydown: _vm.handleKeyDown }\n },\n _vm._l(_vm.menus, function(menu, index) {\n return _c(\"cascader-menu\", {\n key: index,\n ref: \"menu\",\n refInFor: true,\n attrs: { index: index, nodes: menu }\n })\n }),\n 1\n )\n}\nvar staticRenderFns = []\ncascader_panelvue_type_template_id_34932346_render._withStripped = true\n\n\n// CONCATENATED MODULE: ./packages/cascader-panel/src/cascader-panel.vue?vue&type=template&id=34932346&\n\n// EXTERNAL MODULE: external \"babel-helper-vue-jsx-merge-props\"\nvar external_babel_helper_vue_jsx_merge_props_ = __webpack_require__(26);\nvar external_babel_helper_vue_jsx_merge_props_default = /*#__PURE__*/__webpack_require__.n(external_babel_helper_vue_jsx_merge_props_);\n\n// EXTERNAL MODULE: external \"element-ui/lib/scrollbar\"\nvar scrollbar_ = __webpack_require__(14);\nvar scrollbar_default = /*#__PURE__*/__webpack_require__.n(scrollbar_);\n\n// EXTERNAL MODULE: external \"element-ui/lib/checkbox\"\nvar checkbox_ = __webpack_require__(18);\nvar checkbox_default = /*#__PURE__*/__webpack_require__.n(checkbox_);\n\n// EXTERNAL MODULE: external \"element-ui/lib/radio\"\nvar radio_ = __webpack_require__(51);\nvar radio_default = /*#__PURE__*/__webpack_require__.n(radio_);\n\n// EXTERNAL MODULE: external \"element-ui/lib/utils/util\"\nvar util_ = __webpack_require__(3);\n\n// CONCATENATED MODULE: ./node_modules/babel-loader/lib!./node_modules/vue-loader/lib??vue-loader-options!./packages/cascader-panel/src/cascader-node.vue?vue&type=script&lang=js&\n\n\n\n\n\n\nvar stopPropagation = function stopPropagation(e) {\n return e.stopPropagation();\n};\n\n/* harmony default export */ var cascader_nodevue_type_script_lang_js_ = ({\n inject: ['panel'],\n\n components: {\n ElCheckbox: checkbox_default.a,\n ElRadio: radio_default.a\n },\n\n props: {\n node: {\n required: true\n },\n nodeId: String\n },\n\n computed: {\n config: function config() {\n return this.panel.config;\n },\n isLeaf: function isLeaf() {\n return this.node.isLeaf;\n },\n isDisabled: function isDisabled() {\n return this.node.isDisabled;\n },\n checkedValue: function checkedValue() {\n return this.panel.checkedValue;\n },\n isChecked: function isChecked() {\n return this.node.isSameNode(this.checkedValue);\n },\n inActivePath: function inActivePath() {\n return this.isInPath(this.panel.activePath);\n },\n inCheckedPath: function inCheckedPath() {\n var _this = this;\n\n if (!this.config.checkStrictly) return false;\n\n return this.panel.checkedNodePaths.some(function (checkedPath) {\n return _this.isInPath(checkedPath);\n });\n },\n value: function value() {\n return this.node.getValueByOption();\n }\n },\n\n methods: {\n handleExpand: function handleExpand() {\n var _this2 = this;\n\n var panel = this.panel,\n node = this.node,\n isDisabled = this.isDisabled,\n config = this.config;\n var multiple = config.multiple,\n checkStrictly = config.checkStrictly;\n\n\n if (!checkStrictly && isDisabled || node.loading) return;\n\n if (config.lazy && !node.loaded) {\n panel.lazyLoad(node, function () {\n // do not use cached leaf value here, invoke this.isLeaf to get new value.\n var isLeaf = _this2.isLeaf;\n\n\n if (!isLeaf) _this2.handleExpand();\n if (multiple) {\n // if leaf sync checked state, else clear checked state\n var checked = isLeaf ? node.checked : false;\n _this2.handleMultiCheckChange(checked);\n }\n });\n } else {\n panel.handleExpand(node);\n }\n },\n handleCheckChange: function handleCheckChange() {\n var panel = this.panel,\n value = this.value,\n node = this.node;\n\n panel.handleCheckChange(value);\n panel.handleExpand(node);\n },\n handleMultiCheckChange: function handleMultiCheckChange(checked) {\n this.node.doCheck(checked);\n this.panel.calculateMultiCheckedValue();\n },\n isInPath: function isInPath(pathNodes) {\n var node = this.node;\n\n var selectedPathNode = pathNodes[node.level - 1] || {};\n return selectedPathNode.uid === node.uid;\n },\n renderPrefix: function renderPrefix(h) {\n var isLeaf = this.isLeaf,\n isChecked = this.isChecked,\n config = this.config;\n var checkStrictly = config.checkStrictly,\n multiple = config.multiple;\n\n\n if (multiple) {\n return this.renderCheckbox(h);\n } else if (checkStrictly) {\n return this.renderRadio(h);\n } else if (isLeaf && isChecked) {\n return this.renderCheckIcon(h);\n }\n\n return null;\n },\n renderPostfix: function renderPostfix(h) {\n var node = this.node,\n isLeaf = this.isLeaf;\n\n\n if (node.loading) {\n return this.renderLoadingIcon(h);\n } else if (!isLeaf) {\n return this.renderExpandIcon(h);\n }\n\n return null;\n },\n renderCheckbox: function renderCheckbox(h) {\n var node = this.node,\n config = this.config,\n isDisabled = this.isDisabled;\n\n var events = {\n on: { change: this.handleMultiCheckChange },\n nativeOn: {}\n };\n\n if (config.checkStrictly) {\n // when every node is selectable, click event should not trigger expand event.\n events.nativeOn.click = stopPropagation;\n }\n\n return h('el-checkbox', external_babel_helper_vue_jsx_merge_props_default()([{\n attrs: {\n value: node.checked,\n indeterminate: node.indeterminate,\n disabled: isDisabled\n }\n }, events]));\n },\n renderRadio: function renderRadio(h) {\n var checkedValue = this.checkedValue,\n value = this.value,\n isDisabled = this.isDisabled;\n\n // to keep same reference if value cause radio's checked state is calculated by reference comparision;\n\n if (Object(util_[\"isEqual\"])(value, checkedValue)) {\n value = checkedValue;\n }\n\n return h(\n 'el-radio',\n {\n attrs: {\n value: checkedValue,\n label: value,\n disabled: isDisabled\n },\n on: {\n 'change': this.handleCheckChange\n },\n nativeOn: {\n 'click': stopPropagation\n }\n },\n [h('span')]\n );\n },\n renderCheckIcon: function renderCheckIcon(h) {\n return h('i', { 'class': 'el-icon-check el-cascader-node__prefix' });\n },\n renderLoadingIcon: function renderLoadingIcon(h) {\n return h('i', { 'class': 'el-icon-loading el-cascader-node__postfix' });\n },\n renderExpandIcon: function renderExpandIcon(h) {\n return h('i', { 'class': 'el-icon-arrow-right el-cascader-node__postfix' });\n },\n renderContent: function renderContent(h) {\n var panel = this.panel,\n node = this.node;\n\n var render = panel.renderLabelFn;\n var vnode = render ? render({ node: node, data: node.data }) : null;\n\n return h(\n 'span',\n { 'class': 'el-cascader-node__label' },\n [vnode || node.label]\n );\n }\n },\n\n render: function render(h) {\n var _this3 = this;\n\n var inActivePath = this.inActivePath,\n inCheckedPath = this.inCheckedPath,\n isChecked = this.isChecked,\n isLeaf = this.isLeaf,\n isDisabled = this.isDisabled,\n config = this.config,\n nodeId = this.nodeId;\n var expandTrigger = config.expandTrigger,\n checkStrictly = config.checkStrictly,\n multiple = config.multiple;\n\n var disabled = !checkStrictly && isDisabled;\n var events = { on: {} };\n\n if (expandTrigger === 'click') {\n events.on.click = this.handleExpand;\n } else {\n events.on.mouseenter = function (e) {\n _this3.handleExpand();\n _this3.$emit('expand', e);\n };\n events.on.focus = function (e) {\n _this3.handleExpand();\n _this3.$emit('expand', e);\n };\n }\n if (isLeaf && !isDisabled && !checkStrictly && !multiple) {\n events.on.click = this.handleCheckChange;\n }\n\n return h(\n 'li',\n external_babel_helper_vue_jsx_merge_props_default()([{\n attrs: {\n role: 'menuitem',\n id: nodeId,\n 'aria-expanded': inActivePath,\n tabindex: disabled ? null : -1\n },\n 'class': {\n 'el-cascader-node': true,\n 'is-selectable': checkStrictly,\n 'in-active-path': inActivePath,\n 'in-checked-path': inCheckedPath,\n 'is-active': isChecked,\n 'is-disabled': disabled\n }\n }, events]),\n [this.renderPrefix(h), this.renderContent(h), this.renderPostfix(h)]\n );\n }\n});\n// CONCATENATED MODULE: ./packages/cascader-panel/src/cascader-node.vue?vue&type=script&lang=js&\n /* harmony default export */ var src_cascader_nodevue_type_script_lang_js_ = (cascader_nodevue_type_script_lang_js_); \n// EXTERNAL MODULE: ./node_modules/vue-loader/lib/runtime/componentNormalizer.js\nvar componentNormalizer = __webpack_require__(0);\n\n// CONCATENATED MODULE: ./packages/cascader-panel/src/cascader-node.vue\nvar cascader_node_render, cascader_node_staticRenderFns\n\n\n\n\n/* normalize component */\n\nvar component = Object(componentNormalizer[\"a\" /* default */])(\n src_cascader_nodevue_type_script_lang_js_,\n cascader_node_render,\n cascader_node_staticRenderFns,\n false,\n null,\n null,\n null\n \n)\n\n/* hot reload */\nif (false) { var api; }\ncomponent.options.__file = \"packages/cascader-panel/src/cascader-node.vue\"\n/* harmony default export */ var cascader_node = (component.exports);\n// EXTERNAL MODULE: external \"element-ui/lib/mixins/locale\"\nvar locale_ = __webpack_require__(6);\nvar locale_default = /*#__PURE__*/__webpack_require__.n(locale_);\n\n// CONCATENATED MODULE: ./node_modules/babel-loader/lib!./node_modules/vue-loader/lib??vue-loader-options!./packages/cascader-panel/src/cascader-menu.vue?vue&type=script&lang=js&\n\n\n\n\n\n\n\n/* harmony default export */ var cascader_menuvue_type_script_lang_js_ = ({\n name: 'ElCascaderMenu',\n\n mixins: [locale_default.a],\n\n inject: ['panel'],\n\n components: {\n ElScrollbar: scrollbar_default.a,\n CascaderNode: cascader_node\n },\n\n props: {\n nodes: {\n type: Array,\n required: true\n },\n index: Number\n },\n\n data: function data() {\n return {\n activeNode: null,\n hoverTimer: null,\n id: Object(util_[\"generateId\"])()\n };\n },\n\n\n computed: {\n isEmpty: function isEmpty() {\n return !this.nodes.length;\n },\n menuId: function menuId() {\n return 'cascader-menu-' + this.id + '-' + this.index;\n }\n },\n\n methods: {\n handleExpand: function handleExpand(e) {\n this.activeNode = e.target;\n },\n handleMouseMove: function handleMouseMove(e) {\n var activeNode = this.activeNode,\n hoverTimer = this.hoverTimer;\n var hoverZone = this.$refs.hoverZone;\n\n\n if (!activeNode || !hoverZone) return;\n\n if (activeNode.contains(e.target)) {\n clearTimeout(hoverTimer);\n\n var _$el$getBoundingClien = this.$el.getBoundingClientRect(),\n left = _$el$getBoundingClien.left;\n\n var startX = e.clientX - left;\n var _$el = this.$el,\n offsetWidth = _$el.offsetWidth,\n offsetHeight = _$el.offsetHeight;\n\n var top = activeNode.offsetTop;\n var bottom = top + activeNode.offsetHeight;\n\n hoverZone.innerHTML = '\\n
\\n
\\n ';\n } else if (!hoverTimer) {\n this.hoverTimer = setTimeout(this.clearHoverZone, this.panel.config.hoverThreshold);\n }\n },\n clearHoverZone: function clearHoverZone() {\n var hoverZone = this.$refs.hoverZone;\n\n if (!hoverZone) return;\n hoverZone.innerHTML = '';\n },\n renderEmptyText: function renderEmptyText(h) {\n return h(\n 'div',\n { 'class': 'el-cascader-menu__empty-text' },\n [this.t('el.cascader.noData')]\n );\n },\n renderNodeList: function renderNodeList(h) {\n var menuId = this.menuId;\n var isHoverMenu = this.panel.isHoverMenu;\n\n var events = { on: {} };\n\n if (isHoverMenu) {\n events.on.expand = this.handleExpand;\n }\n\n var nodes = this.nodes.map(function (node, index) {\n var hasChildren = node.hasChildren;\n\n return h('cascader-node', external_babel_helper_vue_jsx_merge_props_default()([{\n key: node.uid,\n attrs: { node: node,\n 'node-id': menuId + '-' + index,\n 'aria-haspopup': hasChildren,\n 'aria-owns': hasChildren ? menuId : null\n }\n }, events]));\n });\n\n return [].concat(nodes, [isHoverMenu ? h('svg', { ref: 'hoverZone', 'class': 'el-cascader-menu__hover-zone' }) : null]);\n }\n },\n\n render: function render(h) {\n var isEmpty = this.isEmpty,\n menuId = this.menuId;\n\n var events = { nativeOn: {} };\n\n // optimize hover to expand experience (#8010)\n if (this.panel.isHoverMenu) {\n events.nativeOn.mousemove = this.handleMouseMove;\n // events.nativeOn.mouseleave = this.clearHoverZone;\n }\n\n return h(\n 'el-scrollbar',\n external_babel_helper_vue_jsx_merge_props_default()([{\n attrs: {\n tag: 'ul',\n role: 'menu',\n id: menuId,\n\n 'wrap-class': 'el-cascader-menu__wrap',\n 'view-class': {\n 'el-cascader-menu__list': true,\n 'is-empty': isEmpty\n }\n },\n 'class': 'el-cascader-menu' }, events]),\n [isEmpty ? this.renderEmptyText(h) : this.renderNodeList(h)]\n );\n }\n});\n// CONCATENATED MODULE: ./packages/cascader-panel/src/cascader-menu.vue?vue&type=script&lang=js&\n /* harmony default export */ var src_cascader_menuvue_type_script_lang_js_ = (cascader_menuvue_type_script_lang_js_); \n// CONCATENATED MODULE: ./packages/cascader-panel/src/cascader-menu.vue\nvar cascader_menu_render, cascader_menu_staticRenderFns\n\n\n\n\n/* normalize component */\n\nvar cascader_menu_component = Object(componentNormalizer[\"a\" /* default */])(\n src_cascader_menuvue_type_script_lang_js_,\n cascader_menu_render,\n cascader_menu_staticRenderFns,\n false,\n null,\n null,\n null\n \n)\n\n/* hot reload */\nif (false) { var cascader_menu_api; }\ncascader_menu_component.options.__file = \"packages/cascader-panel/src/cascader-menu.vue\"\n/* harmony default export */ var cascader_menu = (cascader_menu_component.exports);\n// EXTERNAL MODULE: external \"element-ui/lib/utils/shared\"\nvar shared_ = __webpack_require__(21);\n\n// CONCATENATED MODULE: ./packages/cascader-panel/src/node.js\nvar _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\n\n\n\nvar uid = 0;\n\nvar node_Node = function () {\n function Node(data, config, parentNode) {\n _classCallCheck(this, Node);\n\n this.data = data;\n this.config = config;\n this.parent = parentNode || null;\n this.level = !this.parent ? 1 : this.parent.level + 1;\n this.uid = uid++;\n\n this.initState();\n this.initChildren();\n }\n\n Node.prototype.initState = function initState() {\n var _config = this.config,\n valueKey = _config.value,\n labelKey = _config.label;\n\n\n this.value = this.data[valueKey];\n this.label = this.data[labelKey];\n this.pathNodes = this.calculatePathNodes();\n this.path = this.pathNodes.map(function (node) {\n return node.value;\n });\n this.pathLabels = this.pathNodes.map(function (node) {\n return node.label;\n });\n\n // lazy load\n this.loading = false;\n this.loaded = false;\n };\n\n Node.prototype.initChildren = function initChildren() {\n var _this = this;\n\n var config = this.config;\n\n var childrenKey = config.children;\n var childrenData = this.data[childrenKey];\n this.hasChildren = Array.isArray(childrenData);\n this.children = (childrenData || []).map(function (child) {\n return new Node(child, config, _this);\n });\n };\n\n Node.prototype.calculatePathNodes = function calculatePathNodes() {\n var nodes = [this];\n var parent = this.parent;\n\n while (parent) {\n nodes.unshift(parent);\n parent = parent.parent;\n }\n\n return nodes;\n };\n\n Node.prototype.getPath = function getPath() {\n return this.path;\n };\n\n Node.prototype.getValue = function getValue() {\n return this.value;\n };\n\n Node.prototype.getValueByOption = function getValueByOption() {\n return this.config.emitPath ? this.getPath() : this.getValue();\n };\n\n Node.prototype.getText = function getText(allLevels, separator) {\n return allLevels ? this.pathLabels.join(separator) : this.label;\n };\n\n Node.prototype.isSameNode = function isSameNode(checkedValue) {\n var value = this.getValueByOption();\n return this.config.multiple && Array.isArray(checkedValue) ? checkedValue.some(function (val) {\n return Object(util_[\"isEqual\"])(val, value);\n }) : Object(util_[\"isEqual\"])(checkedValue, value);\n };\n\n Node.prototype.broadcast = function broadcast(event) {\n for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {\n args[_key - 1] = arguments[_key];\n }\n\n var handlerName = 'onParent' + Object(util_[\"capitalize\"])(event);\n\n this.children.forEach(function (child) {\n if (child) {\n // bottom up\n child.broadcast.apply(child, [event].concat(args));\n child[handlerName] && child[handlerName].apply(child, args);\n }\n });\n };\n\n Node.prototype.emit = function emit(event) {\n var parent = this.parent;\n\n var handlerName = 'onChild' + Object(util_[\"capitalize\"])(event);\n if (parent) {\n for (var _len2 = arguments.length, args = Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {\n args[_key2 - 1] = arguments[_key2];\n }\n\n parent[handlerName] && parent[handlerName].apply(parent, args);\n parent.emit.apply(parent, [event].concat(args));\n }\n };\n\n Node.prototype.onParentCheck = function onParentCheck(checked) {\n if (!this.isDisabled) {\n this.setCheckState(checked);\n }\n };\n\n Node.prototype.onChildCheck = function onChildCheck() {\n var children = this.children;\n\n var validChildren = children.filter(function (child) {\n return !child.isDisabled;\n });\n var checked = validChildren.length ? validChildren.every(function (child) {\n return child.checked;\n }) : false;\n\n this.setCheckState(checked);\n };\n\n Node.prototype.setCheckState = function setCheckState(checked) {\n var totalNum = this.children.length;\n var checkedNum = this.children.reduce(function (c, p) {\n var num = p.checked ? 1 : p.indeterminate ? 0.5 : 0;\n return c + num;\n }, 0);\n\n this.checked = checked;\n this.indeterminate = checkedNum !== totalNum && checkedNum > 0;\n };\n\n Node.prototype.syncCheckState = function syncCheckState(checkedValue) {\n var value = this.getValueByOption();\n var checked = this.isSameNode(checkedValue, value);\n\n this.doCheck(checked);\n };\n\n Node.prototype.doCheck = function doCheck(checked) {\n if (this.checked !== checked) {\n if (this.config.checkStrictly) {\n this.checked = checked;\n } else {\n // bottom up to unify the calculation of the indeterminate state\n this.broadcast('check', checked);\n this.setCheckState(checked);\n this.emit('check');\n }\n }\n };\n\n _createClass(Node, [{\n key: 'isDisabled',\n get: function get() {\n var data = this.data,\n parent = this.parent,\n config = this.config;\n\n var disabledKey = config.disabled;\n var checkStrictly = config.checkStrictly;\n\n return data[disabledKey] || !checkStrictly && parent && parent.isDisabled;\n }\n }, {\n key: 'isLeaf',\n get: function get() {\n var data = this.data,\n loaded = this.loaded,\n hasChildren = this.hasChildren,\n children = this.children;\n var _config2 = this.config,\n lazy = _config2.lazy,\n leafKey = _config2.leaf;\n\n if (lazy) {\n var isLeaf = Object(shared_[\"isDef\"])(data[leafKey]) ? data[leafKey] : loaded ? !children.length : false;\n this.hasChildren = !isLeaf;\n return isLeaf;\n }\n return !hasChildren;\n }\n }]);\n\n return Node;\n}();\n\n/* harmony default export */ var src_node = (node_Node);\n// CONCATENATED MODULE: ./packages/cascader-panel/src/store.js\nfunction store_classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\n\n\n\nvar flatNodes = function flatNodes(data, leafOnly) {\n return data.reduce(function (res, node) {\n if (node.isLeaf) {\n res.push(node);\n } else {\n !leafOnly && res.push(node);\n res = res.concat(flatNodes(node.children, leafOnly));\n }\n return res;\n }, []);\n};\n\nvar store_Store = function () {\n function Store(data, config) {\n store_classCallCheck(this, Store);\n\n this.config = config;\n this.initNodes(data);\n }\n\n Store.prototype.initNodes = function initNodes(data) {\n var _this = this;\n\n data = Object(util_[\"coerceTruthyValueToArray\"])(data);\n this.nodes = data.map(function (nodeData) {\n return new src_node(nodeData, _this.config);\n });\n this.flattedNodes = this.getFlattedNodes(false, false);\n this.leafNodes = this.getFlattedNodes(true, false);\n };\n\n Store.prototype.appendNode = function appendNode(nodeData, parentNode) {\n var node = new src_node(nodeData, this.config, parentNode);\n var children = parentNode ? parentNode.children : this.nodes;\n\n children.push(node);\n };\n\n Store.prototype.appendNodes = function appendNodes(nodeDataList, parentNode) {\n var _this2 = this;\n\n nodeDataList = Object(util_[\"coerceTruthyValueToArray\"])(nodeDataList);\n nodeDataList.forEach(function (nodeData) {\n return _this2.appendNode(nodeData, parentNode);\n });\n };\n\n Store.prototype.getNodes = function getNodes() {\n return this.nodes;\n };\n\n Store.prototype.getFlattedNodes = function getFlattedNodes(leafOnly) {\n var cached = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;\n\n var cachedNodes = leafOnly ? this.leafNodes : this.flattedNodes;\n return cached ? cachedNodes : flatNodes(this.nodes, leafOnly);\n };\n\n Store.prototype.getNodeByValue = function getNodeByValue(value) {\n if (value) {\n var nodes = this.getFlattedNodes(false, !this.config.lazy).filter(function (node) {\n return Object(util_[\"valueEquals\"])(node.path, value) || node.value === value;\n });\n return nodes && nodes.length ? nodes[0] : null;\n }\n return null;\n };\n\n return Store;\n}();\n\n/* harmony default export */ var src_store = (store_Store);\n// EXTERNAL MODULE: external \"element-ui/lib/utils/merge\"\nvar merge_ = __webpack_require__(9);\nvar merge_default = /*#__PURE__*/__webpack_require__.n(merge_);\n\n// EXTERNAL MODULE: external \"element-ui/lib/utils/aria-utils\"\nvar aria_utils_ = __webpack_require__(32);\nvar aria_utils_default = /*#__PURE__*/__webpack_require__.n(aria_utils_);\n\n// EXTERNAL MODULE: external \"element-ui/lib/utils/scroll-into-view\"\nvar scroll_into_view_ = __webpack_require__(31);\nvar scroll_into_view_default = /*#__PURE__*/__webpack_require__.n(scroll_into_view_);\n\n// CONCATENATED MODULE: ./node_modules/babel-loader/lib!./node_modules/vue-loader/lib??vue-loader-options!./packages/cascader-panel/src/cascader-panel.vue?vue&type=script&lang=js&\nvar _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };\n\n//\n//\n//\n//\n//\n//\n//\n//\n//\n//\n//\n//\n//\n//\n//\n//\n\n\n\n\n\n\n\n\nvar KeyCode = aria_utils_default.a.keys;\n\nvar DefaultProps = {\n expandTrigger: 'click', // or hover\n multiple: false,\n checkStrictly: false, // whether all nodes can be selected\n emitPath: true, // wether to emit an array of all levels value in which node is located\n lazy: false,\n lazyLoad: util_[\"noop\"],\n value: 'value',\n label: 'label',\n children: 'children',\n leaf: 'leaf',\n disabled: 'disabled',\n hoverThreshold: 500\n};\n\nvar cascader_panelvue_type_script_lang_js_isLeaf = function isLeaf(el) {\n return !el.getAttribute('aria-owns');\n};\n\nvar getSibling = function getSibling(el, distance) {\n var parentNode = el.parentNode;\n\n if (parentNode) {\n var siblings = parentNode.querySelectorAll('.el-cascader-node[tabindex=\"-1\"]');\n var index = Array.prototype.indexOf.call(siblings, el);\n return siblings[index + distance] || null;\n }\n return null;\n};\n\nvar getMenuIndex = function getMenuIndex(el, distance) {\n if (!el) return;\n var pieces = el.id.split('-');\n return Number(pieces[pieces.length - 2]);\n};\n\nvar focusNode = function focusNode(el) {\n if (!el) return;\n el.focus();\n !cascader_panelvue_type_script_lang_js_isLeaf(el) && el.click();\n};\n\nvar checkNode = function checkNode(el) {\n if (!el) return;\n\n var input = el.querySelector('input');\n if (input) {\n input.click();\n } else if (cascader_panelvue_type_script_lang_js_isLeaf(el)) {\n el.click();\n }\n};\n\n/* harmony default export */ var cascader_panelvue_type_script_lang_js_ = ({\n name: 'ElCascaderPanel',\n\n components: {\n CascaderMenu: cascader_menu\n },\n\n props: {\n value: {},\n options: Array,\n props: Object,\n border: {\n type: Boolean,\n default: true\n },\n renderLabel: Function\n },\n\n provide: function provide() {\n return {\n panel: this\n };\n },\n data: function data() {\n return {\n checkedValue: null,\n checkedNodePaths: [],\n store: [],\n menus: [],\n activePath: [],\n loadCount: 0\n };\n },\n\n\n computed: {\n config: function config() {\n return merge_default()(_extends({}, DefaultProps), this.props || {});\n },\n multiple: function multiple() {\n return this.config.multiple;\n },\n checkStrictly: function checkStrictly() {\n return this.config.checkStrictly;\n },\n leafOnly: function leafOnly() {\n return !this.checkStrictly;\n },\n isHoverMenu: function isHoverMenu() {\n return this.config.expandTrigger === 'hover';\n },\n renderLabelFn: function renderLabelFn() {\n return this.renderLabel || this.$scopedSlots.default;\n }\n },\n\n watch: {\n options: {\n handler: function handler() {\n this.initStore();\n },\n immediate: true,\n deep: true\n },\n value: function value() {\n this.syncCheckedValue();\n this.checkStrictly && this.calculateCheckedNodePaths();\n },\n checkedValue: function checkedValue(val) {\n if (!Object(util_[\"isEqual\"])(val, this.value)) {\n this.checkStrictly && this.calculateCheckedNodePaths();\n this.$emit('input', val);\n this.$emit('change', val);\n }\n }\n },\n\n mounted: function mounted() {\n if (!Object(util_[\"isEmpty\"])(this.value)) {\n this.syncCheckedValue();\n }\n },\n\n\n methods: {\n initStore: function initStore() {\n var config = this.config,\n options = this.options;\n\n if (config.lazy && Object(util_[\"isEmpty\"])(options)) {\n this.lazyLoad();\n } else {\n this.store = new src_store(options, config);\n this.menus = [this.store.getNodes()];\n this.syncMenuState();\n }\n },\n syncCheckedValue: function syncCheckedValue() {\n var value = this.value,\n checkedValue = this.checkedValue;\n\n if (!Object(util_[\"isEqual\"])(value, checkedValue)) {\n this.checkedValue = value;\n this.syncMenuState();\n }\n },\n syncMenuState: function syncMenuState() {\n var multiple = this.multiple,\n checkStrictly = this.checkStrictly;\n\n this.syncActivePath();\n multiple && this.syncMultiCheckState();\n checkStrictly && this.calculateCheckedNodePaths();\n this.$nextTick(this.scrollIntoView);\n },\n syncMultiCheckState: function syncMultiCheckState() {\n var _this = this;\n\n var nodes = this.getFlattedNodes(this.leafOnly);\n\n nodes.forEach(function (node) {\n node.syncCheckState(_this.checkedValue);\n });\n },\n syncActivePath: function syncActivePath() {\n var _this2 = this;\n\n var store = this.store,\n multiple = this.multiple,\n activePath = this.activePath,\n checkedValue = this.checkedValue;\n\n\n if (!Object(util_[\"isEmpty\"])(activePath)) {\n var nodes = activePath.map(function (node) {\n return _this2.getNodeByValue(node.getValue());\n });\n this.expandNodes(nodes);\n } else if (!Object(util_[\"isEmpty\"])(checkedValue)) {\n var value = multiple ? checkedValue[0] : checkedValue;\n var checkedNode = this.getNodeByValue(value) || {};\n var _nodes = (checkedNode.pathNodes || []).slice(0, -1);\n this.expandNodes(_nodes);\n } else {\n this.activePath = [];\n this.menus = [store.getNodes()];\n }\n },\n expandNodes: function expandNodes(nodes) {\n var _this3 = this;\n\n nodes.forEach(function (node) {\n return _this3.handleExpand(node, true /* silent */);\n });\n },\n calculateCheckedNodePaths: function calculateCheckedNodePaths() {\n var _this4 = this;\n\n var checkedValue = this.checkedValue,\n multiple = this.multiple;\n\n var checkedValues = multiple ? Object(util_[\"coerceTruthyValueToArray\"])(checkedValue) : [checkedValue];\n this.checkedNodePaths = checkedValues.map(function (v) {\n var checkedNode = _this4.getNodeByValue(v);\n return checkedNode ? checkedNode.pathNodes : [];\n });\n },\n handleKeyDown: function handleKeyDown(e) {\n var target = e.target,\n keyCode = e.keyCode;\n\n\n switch (keyCode) {\n case KeyCode.up:\n var prev = getSibling(target, -1);\n focusNode(prev);\n break;\n case KeyCode.down:\n var next = getSibling(target, 1);\n focusNode(next);\n break;\n case KeyCode.left:\n var preMenu = this.$refs.menu[getMenuIndex(target) - 1];\n if (preMenu) {\n var expandedNode = preMenu.$el.querySelector('.el-cascader-node[aria-expanded=\"true\"]');\n focusNode(expandedNode);\n }\n break;\n case KeyCode.right:\n var nextMenu = this.$refs.menu[getMenuIndex(target) + 1];\n if (nextMenu) {\n var firstNode = nextMenu.$el.querySelector('.el-cascader-node[tabindex=\"-1\"]');\n focusNode(firstNode);\n }\n break;\n case KeyCode.enter:\n checkNode(target);\n break;\n case KeyCode.esc:\n case KeyCode.tab:\n this.$emit('close');\n break;\n default:\n return;\n }\n },\n handleExpand: function handleExpand(node, silent) {\n var activePath = this.activePath;\n var level = node.level;\n\n var path = activePath.slice(0, level - 1);\n var menus = this.menus.slice(0, level);\n\n if (!node.isLeaf) {\n path.push(node);\n menus.push(node.children);\n }\n\n this.activePath = path;\n this.menus = menus;\n\n if (!silent) {\n var pathValues = path.map(function (node) {\n return node.getValue();\n });\n var activePathValues = activePath.map(function (node) {\n return node.getValue();\n });\n if (!Object(util_[\"valueEquals\"])(pathValues, activePathValues)) {\n this.$emit('active-item-change', pathValues); // Deprecated\n this.$emit('expand-change', pathValues);\n }\n }\n },\n handleCheckChange: function handleCheckChange(value) {\n this.checkedValue = value;\n },\n lazyLoad: function lazyLoad(node, onFullfiled) {\n var _this5 = this;\n\n var config = this.config;\n\n if (!node) {\n node = node || { root: true, level: 0 };\n this.store = new src_store([], config);\n this.menus = [this.store.getNodes()];\n }\n node.loading = true;\n var resolve = function resolve(dataList) {\n var parent = node.root ? null : node;\n dataList && dataList.length && _this5.store.appendNodes(dataList, parent);\n node.loading = false;\n node.loaded = true;\n\n // dispose default value on lazy load mode\n if (Array.isArray(_this5.checkedValue)) {\n var nodeValue = _this5.checkedValue[_this5.loadCount++];\n var valueKey = _this5.config.value;\n var leafKey = _this5.config.leaf;\n\n if (Array.isArray(dataList) && dataList.filter(function (item) {\n return item[valueKey] === nodeValue;\n }).length > 0) {\n var checkedNode = _this5.store.getNodeByValue(nodeValue);\n\n if (!checkedNode.data[leafKey]) {\n _this5.lazyLoad(checkedNode, function () {\n _this5.handleExpand(checkedNode);\n });\n }\n\n if (_this5.loadCount === _this5.checkedValue.length) {\n _this5.$parent.computePresentText();\n }\n }\n }\n\n onFullfiled && onFullfiled(dataList);\n };\n config.lazyLoad(node, resolve);\n },\n\n\n /**\n * public methods\n */\n calculateMultiCheckedValue: function calculateMultiCheckedValue() {\n this.checkedValue = this.getCheckedNodes(this.leafOnly).map(function (node) {\n return node.getValueByOption();\n });\n },\n scrollIntoView: function scrollIntoView() {\n if (this.$isServer) return;\n\n var menus = this.$refs.menu || [];\n menus.forEach(function (menu) {\n var menuElement = menu.$el;\n if (menuElement) {\n var container = menuElement.querySelector('.el-scrollbar__wrap');\n var activeNode = menuElement.querySelector('.el-cascader-node.is-active') || menuElement.querySelector('.el-cascader-node.in-active-path');\n scroll_into_view_default()(container, activeNode);\n }\n });\n },\n getNodeByValue: function getNodeByValue(val) {\n return this.store.getNodeByValue(val);\n },\n getFlattedNodes: function getFlattedNodes(leafOnly) {\n var cached = !this.config.lazy;\n return this.store.getFlattedNodes(leafOnly, cached);\n },\n getCheckedNodes: function getCheckedNodes(leafOnly) {\n var checkedValue = this.checkedValue,\n multiple = this.multiple;\n\n if (multiple) {\n var nodes = this.getFlattedNodes(leafOnly);\n return nodes.filter(function (node) {\n return node.checked;\n });\n } else {\n return Object(util_[\"isEmpty\"])(checkedValue) ? [] : [this.getNodeByValue(checkedValue)];\n }\n },\n clearCheckedNodes: function clearCheckedNodes() {\n var config = this.config,\n leafOnly = this.leafOnly;\n var multiple = config.multiple,\n emitPath = config.emitPath;\n\n if (multiple) {\n this.getCheckedNodes(leafOnly).filter(function (node) {\n return !node.isDisabled;\n }).forEach(function (node) {\n return node.doCheck(false);\n });\n this.calculateMultiCheckedValue();\n } else {\n this.checkedValue = emitPath ? [] : null;\n }\n }\n }\n});\n// CONCATENATED MODULE: ./packages/cascader-panel/src/cascader-panel.vue?vue&type=script&lang=js&\n /* harmony default export */ var src_cascader_panelvue_type_script_lang_js_ = (cascader_panelvue_type_script_lang_js_); \n// CONCATENATED MODULE: ./packages/cascader-panel/src/cascader-panel.vue\n\n\n\n\n\n/* normalize component */\n\nvar cascader_panel_component = Object(componentNormalizer[\"a\" /* default */])(\n src_cascader_panelvue_type_script_lang_js_,\n cascader_panelvue_type_template_id_34932346_render,\n staticRenderFns,\n false,\n null,\n null,\n null\n \n)\n\n/* hot reload */\nif (false) { var cascader_panel_api; }\ncascader_panel_component.options.__file = \"packages/cascader-panel/src/cascader-panel.vue\"\n/* harmony default export */ var cascader_panel = (cascader_panel_component.exports);\n// CONCATENATED MODULE: ./packages/cascader-panel/index.js\n\n\n/* istanbul ignore next */\ncascader_panel.install = function (Vue) {\n Vue.component(cascader_panel.name, cascader_panel);\n};\n\n/* harmony default export */ var packages_cascader_panel = __webpack_exports__[\"default\"] = (cascader_panel);\n\n/***/ }),\n\n/***/ 6:\n/***/ (function(module, exports) {\n\nmodule.exports = require(\"element-ui/lib/mixins/locale\");\n\n/***/ }),\n\n/***/ 9:\n/***/ (function(module, exports) {\n\nmodule.exports = require(\"element-ui/lib/utils/merge\");\n\n/***/ })\n\n/******/ });","var anObject = require('../internals/an-object');\nvar aFunction = require('../internals/a-function');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar SPECIES = wellKnownSymbol('species');\n\n// `SpeciesConstructor` abstract operation\n// https://tc39.github.io/ecma262/#sec-speciesconstructor\nmodule.exports = function (O, defaultConstructor) {\n var C = anObject(O).constructor;\n var S;\n return C === undefined || (S = anObject(C)[SPECIES]) == undefined ? defaultConstructor : aFunction(S);\n};\n","/**\n * lodash (Custom Build)
\n * Build: `lodash modularize exports=\"npm\" -o ./`\n * Copyright jQuery Foundation and other contributors
\n * Released under MIT license
\n * Based on Underscore.js 1.8.3 \n * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors\n */\n\n/** Used as the size to enable large array optimizations. */\nvar LARGE_ARRAY_SIZE = 200;\n\n/** Used as the `TypeError` message for \"Functions\" methods. */\nvar FUNC_ERROR_TEXT = 'Expected a function';\n\n/** Used to stand-in for `undefined` hash values. */\nvar HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n/** Used to compose bitmasks for comparison styles. */\nvar UNORDERED_COMPARE_FLAG = 1,\n PARTIAL_COMPARE_FLAG = 2;\n\n/** Used as references for various `Number` constants. */\nvar INFINITY = 1 / 0,\n MAX_SAFE_INTEGER = 9007199254740991;\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]',\n arrayTag = '[object Array]',\n boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n errorTag = '[object Error]',\n funcTag = '[object Function]',\n genTag = '[object GeneratorFunction]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n objectTag = '[object Object]',\n promiseTag = '[object Promise]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n symbolTag = '[object Symbol]',\n weakMapTag = '[object WeakMap]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n dataViewTag = '[object DataView]',\n float32Tag = '[object Float32Array]',\n float64Tag = '[object Float64Array]',\n int8Tag = '[object Int8Array]',\n int16Tag = '[object Int16Array]',\n int32Tag = '[object Int32Array]',\n uint8Tag = '[object Uint8Array]',\n uint8ClampedTag = '[object Uint8ClampedArray]',\n uint16Tag = '[object Uint16Array]',\n uint32Tag = '[object Uint32Array]';\n\n/** Used to match property names within property paths. */\nvar reIsDeepProp = /\\.|\\[(?:[^[\\]]*|([\"'])(?:(?!\\1)[^\\\\]|\\\\.)*?\\1)\\]/,\n reIsPlainProp = /^\\w*$/,\n reLeadingDot = /^\\./,\n rePropName = /[^.[\\]]+|\\[(?:(-?\\d+(?:\\.\\d+)?)|([\"'])((?:(?!\\2)[^\\\\]|\\\\.)*?)\\2)\\]|(?=(?:\\.|\\[\\])(?:\\.|\\[\\]|$))/g;\n\n/**\n * Used to match `RegExp`\n * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).\n */\nvar reRegExpChar = /[\\\\^$.*+?()[\\]{}|]/g;\n\n/** Used to match backslashes in property paths. */\nvar reEscapeChar = /\\\\(\\\\)?/g;\n\n/** Used to detect host constructors (Safari). */\nvar reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\n/** Used to detect unsigned integer values. */\nvar reIsUint = /^(?:0|[1-9]\\d*)$/;\n\n/** Used to identify `toStringTag` values of typed arrays. */\nvar typedArrayTags = {};\ntypedArrayTags[float32Tag] = typedArrayTags[float64Tag] =\ntypedArrayTags[int8Tag] = typedArrayTags[int16Tag] =\ntypedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =\ntypedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =\ntypedArrayTags[uint32Tag] = true;\ntypedArrayTags[argsTag] = typedArrayTags[arrayTag] =\ntypedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =\ntypedArrayTags[dataViewTag] = typedArrayTags[dateTag] =\ntypedArrayTags[errorTag] = typedArrayTags[funcTag] =\ntypedArrayTags[mapTag] = typedArrayTags[numberTag] =\ntypedArrayTags[objectTag] = typedArrayTags[regexpTag] =\ntypedArrayTags[setTag] = typedArrayTags[stringTag] =\ntypedArrayTags[weakMapTag] = false;\n\n/** Detect free variable `global` from Node.js. */\nvar freeGlobal = typeof global == 'object' && global && global.Object === Object && global;\n\n/** Detect free variable `self`. */\nvar freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n/** Used as a reference to the global object. */\nvar root = freeGlobal || freeSelf || Function('return this')();\n\n/** Detect free variable `exports`. */\nvar freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n/** Detect free variable `module`. */\nvar freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n/** Detect the popular CommonJS extension `module.exports`. */\nvar moduleExports = freeModule && freeModule.exports === freeExports;\n\n/** Detect free variable `process` from Node.js. */\nvar freeProcess = moduleExports && freeGlobal.process;\n\n/** Used to access faster Node.js helpers. */\nvar nodeUtil = (function() {\n try {\n return freeProcess && freeProcess.binding('util');\n } catch (e) {}\n}());\n\n/* Node.js helper references. */\nvar nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;\n\n/**\n * A specialized version of `_.reduce` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @param {boolean} [initAccum] Specify using the first element of `array` as\n * the initial value.\n * @returns {*} Returns the accumulated value.\n */\nfunction arrayReduce(array, iteratee, accumulator, initAccum) {\n var index = -1,\n length = array ? array.length : 0;\n\n if (initAccum && length) {\n accumulator = array[++index];\n }\n while (++index < length) {\n accumulator = iteratee(accumulator, array[index], index, array);\n }\n return accumulator;\n}\n\n/**\n * A specialized version of `_.some` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n */\nfunction arraySome(array, predicate) {\n var index = -1,\n length = array ? array.length : 0;\n\n while (++index < length) {\n if (predicate(array[index], index, array)) {\n return true;\n }\n }\n return false;\n}\n\n/**\n * The base implementation of `_.property` without support for deep paths.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @returns {Function} Returns the new accessor function.\n */\nfunction baseProperty(key) {\n return function(object) {\n return object == null ? undefined : object[key];\n };\n}\n\n/**\n * The base implementation of `_.reduce` and `_.reduceRight`, without support\n * for iteratee shorthands, which iterates over `collection` using `eachFunc`.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} accumulator The initial value.\n * @param {boolean} initAccum Specify using the first or last element of\n * `collection` as the initial value.\n * @param {Function} eachFunc The function to iterate over `collection`.\n * @returns {*} Returns the accumulated value.\n */\nfunction baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) {\n eachFunc(collection, function(value, index, collection) {\n accumulator = initAccum\n ? (initAccum = false, value)\n : iteratee(accumulator, value, index, collection);\n });\n return accumulator;\n}\n\n/**\n * The base implementation of `_.times` without support for iteratee shorthands\n * or max array length checks.\n *\n * @private\n * @param {number} n The number of times to invoke `iteratee`.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the array of results.\n */\nfunction baseTimes(n, iteratee) {\n var index = -1,\n result = Array(n);\n\n while (++index < n) {\n result[index] = iteratee(index);\n }\n return result;\n}\n\n/**\n * The base implementation of `_.unary` without support for storing metadata.\n *\n * @private\n * @param {Function} func The function to cap arguments for.\n * @returns {Function} Returns the new capped function.\n */\nfunction baseUnary(func) {\n return function(value) {\n return func(value);\n };\n}\n\n/**\n * Gets the value at `key` of `object`.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\nfunction getValue(object, key) {\n return object == null ? undefined : object[key];\n}\n\n/**\n * Checks if `value` is a host object in IE < 9.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a host object, else `false`.\n */\nfunction isHostObject(value) {\n // Many host objects are `Object` objects that can coerce to strings\n // despite having improperly defined `toString` methods.\n var result = false;\n if (value != null && typeof value.toString != 'function') {\n try {\n result = !!(value + '');\n } catch (e) {}\n }\n return result;\n}\n\n/**\n * Converts `map` to its key-value pairs.\n *\n * @private\n * @param {Object} map The map to convert.\n * @returns {Array} Returns the key-value pairs.\n */\nfunction mapToArray(map) {\n var index = -1,\n result = Array(map.size);\n\n map.forEach(function(value, key) {\n result[++index] = [key, value];\n });\n return result;\n}\n\n/**\n * Creates a unary function that invokes `func` with its argument transformed.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {Function} transform The argument transform.\n * @returns {Function} Returns the new function.\n */\nfunction overArg(func, transform) {\n return function(arg) {\n return func(transform(arg));\n };\n}\n\n/**\n * Converts `set` to an array of its values.\n *\n * @private\n * @param {Object} set The set to convert.\n * @returns {Array} Returns the values.\n */\nfunction setToArray(set) {\n var index = -1,\n result = Array(set.size);\n\n set.forEach(function(value) {\n result[++index] = value;\n });\n return result;\n}\n\n/** Used for built-in method references. */\nvar arrayProto = Array.prototype,\n funcProto = Function.prototype,\n objectProto = Object.prototype;\n\n/** Used to detect overreaching core-js shims. */\nvar coreJsData = root['__core-js_shared__'];\n\n/** Used to detect methods masquerading as native. */\nvar maskSrcKey = (function() {\n var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');\n return uid ? ('Symbol(src)_1.' + uid) : '';\n}());\n\n/** Used to resolve the decompiled source of functions. */\nvar funcToString = funcProto.toString;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar objectToString = objectProto.toString;\n\n/** Used to detect if a method is native. */\nvar reIsNative = RegExp('^' +\n funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\\\$&')\n .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n);\n\n/** Built-in value references. */\nvar Symbol = root.Symbol,\n Uint8Array = root.Uint8Array,\n propertyIsEnumerable = objectProto.propertyIsEnumerable,\n splice = arrayProto.splice;\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeKeys = overArg(Object.keys, Object);\n\n/* Built-in method references that are verified to be native. */\nvar DataView = getNative(root, 'DataView'),\n Map = getNative(root, 'Map'),\n Promise = getNative(root, 'Promise'),\n Set = getNative(root, 'Set'),\n WeakMap = getNative(root, 'WeakMap'),\n nativeCreate = getNative(Object, 'create');\n\n/** Used to detect maps, sets, and weakmaps. */\nvar dataViewCtorString = toSource(DataView),\n mapCtorString = toSource(Map),\n promiseCtorString = toSource(Promise),\n setCtorString = toSource(Set),\n weakMapCtorString = toSource(WeakMap);\n\n/** Used to convert symbols to primitives and strings. */\nvar symbolProto = Symbol ? Symbol.prototype : undefined,\n symbolValueOf = symbolProto ? symbolProto.valueOf : undefined,\n symbolToString = symbolProto ? symbolProto.toString : undefined;\n\n/**\n * Creates a hash object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction Hash(entries) {\n var index = -1,\n length = entries ? entries.length : 0;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n}\n\n/**\n * Removes all key-value entries from the hash.\n *\n * @private\n * @name clear\n * @memberOf Hash\n */\nfunction hashClear() {\n this.__data__ = nativeCreate ? nativeCreate(null) : {};\n}\n\n/**\n * Removes `key` and its value from the hash.\n *\n * @private\n * @name delete\n * @memberOf Hash\n * @param {Object} hash The hash to modify.\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction hashDelete(key) {\n return this.has(key) && delete this.__data__[key];\n}\n\n/**\n * Gets the hash value for `key`.\n *\n * @private\n * @name get\n * @memberOf Hash\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction hashGet(key) {\n var data = this.__data__;\n if (nativeCreate) {\n var result = data[key];\n return result === HASH_UNDEFINED ? undefined : result;\n }\n return hasOwnProperty.call(data, key) ? data[key] : undefined;\n}\n\n/**\n * Checks if a hash value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Hash\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction hashHas(key) {\n var data = this.__data__;\n return nativeCreate ? data[key] !== undefined : hasOwnProperty.call(data, key);\n}\n\n/**\n * Sets the hash `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Hash\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the hash instance.\n */\nfunction hashSet(key, value) {\n var data = this.__data__;\n data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;\n return this;\n}\n\n// Add methods to `Hash`.\nHash.prototype.clear = hashClear;\nHash.prototype['delete'] = hashDelete;\nHash.prototype.get = hashGet;\nHash.prototype.has = hashHas;\nHash.prototype.set = hashSet;\n\n/**\n * Creates an list cache object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction ListCache(entries) {\n var index = -1,\n length = entries ? entries.length : 0;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n}\n\n/**\n * Removes all key-value entries from the list cache.\n *\n * @private\n * @name clear\n * @memberOf ListCache\n */\nfunction listCacheClear() {\n this.__data__ = [];\n}\n\n/**\n * Removes `key` and its value from the list cache.\n *\n * @private\n * @name delete\n * @memberOf ListCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction listCacheDelete(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n return false;\n }\n var lastIndex = data.length - 1;\n if (index == lastIndex) {\n data.pop();\n } else {\n splice.call(data, index, 1);\n }\n return true;\n}\n\n/**\n * Gets the list cache value for `key`.\n *\n * @private\n * @name get\n * @memberOf ListCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction listCacheGet(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n return index < 0 ? undefined : data[index][1];\n}\n\n/**\n * Checks if a list cache value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf ListCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction listCacheHas(key) {\n return assocIndexOf(this.__data__, key) > -1;\n}\n\n/**\n * Sets the list cache `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf ListCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the list cache instance.\n */\nfunction listCacheSet(key, value) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n data.push([key, value]);\n } else {\n data[index][1] = value;\n }\n return this;\n}\n\n// Add methods to `ListCache`.\nListCache.prototype.clear = listCacheClear;\nListCache.prototype['delete'] = listCacheDelete;\nListCache.prototype.get = listCacheGet;\nListCache.prototype.has = listCacheHas;\nListCache.prototype.set = listCacheSet;\n\n/**\n * Creates a map cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction MapCache(entries) {\n var index = -1,\n length = entries ? entries.length : 0;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n}\n\n/**\n * Removes all key-value entries from the map.\n *\n * @private\n * @name clear\n * @memberOf MapCache\n */\nfunction mapCacheClear() {\n this.__data__ = {\n 'hash': new Hash,\n 'map': new (Map || ListCache),\n 'string': new Hash\n };\n}\n\n/**\n * Removes `key` and its value from the map.\n *\n * @private\n * @name delete\n * @memberOf MapCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction mapCacheDelete(key) {\n return getMapData(this, key)['delete'](key);\n}\n\n/**\n * Gets the map value for `key`.\n *\n * @private\n * @name get\n * @memberOf MapCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction mapCacheGet(key) {\n return getMapData(this, key).get(key);\n}\n\n/**\n * Checks if a map value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf MapCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction mapCacheHas(key) {\n return getMapData(this, key).has(key);\n}\n\n/**\n * Sets the map `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf MapCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the map cache instance.\n */\nfunction mapCacheSet(key, value) {\n getMapData(this, key).set(key, value);\n return this;\n}\n\n// Add methods to `MapCache`.\nMapCache.prototype.clear = mapCacheClear;\nMapCache.prototype['delete'] = mapCacheDelete;\nMapCache.prototype.get = mapCacheGet;\nMapCache.prototype.has = mapCacheHas;\nMapCache.prototype.set = mapCacheSet;\n\n/**\n *\n * Creates an array cache object to store unique values.\n *\n * @private\n * @constructor\n * @param {Array} [values] The values to cache.\n */\nfunction SetCache(values) {\n var index = -1,\n length = values ? values.length : 0;\n\n this.__data__ = new MapCache;\n while (++index < length) {\n this.add(values[index]);\n }\n}\n\n/**\n * Adds `value` to the array cache.\n *\n * @private\n * @name add\n * @memberOf SetCache\n * @alias push\n * @param {*} value The value to cache.\n * @returns {Object} Returns the cache instance.\n */\nfunction setCacheAdd(value) {\n this.__data__.set(value, HASH_UNDEFINED);\n return this;\n}\n\n/**\n * Checks if `value` is in the array cache.\n *\n * @private\n * @name has\n * @memberOf SetCache\n * @param {*} value The value to search for.\n * @returns {number} Returns `true` if `value` is found, else `false`.\n */\nfunction setCacheHas(value) {\n return this.__data__.has(value);\n}\n\n// Add methods to `SetCache`.\nSetCache.prototype.add = SetCache.prototype.push = setCacheAdd;\nSetCache.prototype.has = setCacheHas;\n\n/**\n * Creates a stack cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction Stack(entries) {\n this.__data__ = new ListCache(entries);\n}\n\n/**\n * Removes all key-value entries from the stack.\n *\n * @private\n * @name clear\n * @memberOf Stack\n */\nfunction stackClear() {\n this.__data__ = new ListCache;\n}\n\n/**\n * Removes `key` and its value from the stack.\n *\n * @private\n * @name delete\n * @memberOf Stack\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction stackDelete(key) {\n return this.__data__['delete'](key);\n}\n\n/**\n * Gets the stack value for `key`.\n *\n * @private\n * @name get\n * @memberOf Stack\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction stackGet(key) {\n return this.__data__.get(key);\n}\n\n/**\n * Checks if a stack value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Stack\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction stackHas(key) {\n return this.__data__.has(key);\n}\n\n/**\n * Sets the stack `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Stack\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the stack cache instance.\n */\nfunction stackSet(key, value) {\n var cache = this.__data__;\n if (cache instanceof ListCache) {\n var pairs = cache.__data__;\n if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {\n pairs.push([key, value]);\n return this;\n }\n cache = this.__data__ = new MapCache(pairs);\n }\n cache.set(key, value);\n return this;\n}\n\n// Add methods to `Stack`.\nStack.prototype.clear = stackClear;\nStack.prototype['delete'] = stackDelete;\nStack.prototype.get = stackGet;\nStack.prototype.has = stackHas;\nStack.prototype.set = stackSet;\n\n/**\n * Creates an array of the enumerable property names of the array-like `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @param {boolean} inherited Specify returning inherited property names.\n * @returns {Array} Returns the array of property names.\n */\nfunction arrayLikeKeys(value, inherited) {\n // Safari 8.1 makes `arguments.callee` enumerable in strict mode.\n // Safari 9 makes `arguments.length` enumerable in strict mode.\n var result = (isArray(value) || isArguments(value))\n ? baseTimes(value.length, String)\n : [];\n\n var length = result.length,\n skipIndexes = !!length;\n\n for (var key in value) {\n if ((inherited || hasOwnProperty.call(value, key)) &&\n !(skipIndexes && (key == 'length' || isIndex(key, length)))) {\n result.push(key);\n }\n }\n return result;\n}\n\n/**\n * Gets the index at which the `key` is found in `array` of key-value pairs.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} key The key to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\nfunction assocIndexOf(array, key) {\n var length = array.length;\n while (length--) {\n if (eq(array[length][0], key)) {\n return length;\n }\n }\n return -1;\n}\n\n/**\n * The base implementation of `_.forEach` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n */\nvar baseEach = createBaseEach(baseForOwn);\n\n/**\n * The base implementation of `baseForOwn` which iterates over `object`\n * properties returned by `keysFunc` and invokes `iteratee` for each property.\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\nvar baseFor = createBaseFor();\n\n/**\n * The base implementation of `_.forOwn` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Object} Returns `object`.\n */\nfunction baseForOwn(object, iteratee) {\n return object && baseFor(object, iteratee, keys);\n}\n\n/**\n * The base implementation of `_.get` without support for default values.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @returns {*} Returns the resolved value.\n */\nfunction baseGet(object, path) {\n path = isKey(path, object) ? [path] : castPath(path);\n\n var index = 0,\n length = path.length;\n\n while (object != null && index < length) {\n object = object[toKey(path[index++])];\n }\n return (index && index == length) ? object : undefined;\n}\n\n/**\n * The base implementation of `getTag`.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\nfunction baseGetTag(value) {\n return objectToString.call(value);\n}\n\n/**\n * The base implementation of `_.hasIn` without support for deep paths.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {Array|string} key The key to check.\n * @returns {boolean} Returns `true` if `key` exists, else `false`.\n */\nfunction baseHasIn(object, key) {\n return object != null && key in Object(object);\n}\n\n/**\n * The base implementation of `_.isEqual` which supports partial comparisons\n * and tracks traversed objects.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {Function} [customizer] The function to customize comparisons.\n * @param {boolean} [bitmask] The bitmask of comparison flags.\n * The bitmask may be composed of the following flags:\n * 1 - Unordered comparison\n * 2 - Partial comparison\n * @param {Object} [stack] Tracks traversed `value` and `other` objects.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n */\nfunction baseIsEqual(value, other, customizer, bitmask, stack) {\n if (value === other) {\n return true;\n }\n if (value == null || other == null || (!isObject(value) && !isObjectLike(other))) {\n return value !== value && other !== other;\n }\n return baseIsEqualDeep(value, other, baseIsEqual, customizer, bitmask, stack);\n}\n\n/**\n * A specialized version of `baseIsEqual` for arrays and objects which performs\n * deep comparisons and tracks traversed objects enabling objects with circular\n * references to be compared.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Function} [customizer] The function to customize comparisons.\n * @param {number} [bitmask] The bitmask of comparison flags. See `baseIsEqual`\n * for more details.\n * @param {Object} [stack] Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction baseIsEqualDeep(object, other, equalFunc, customizer, bitmask, stack) {\n var objIsArr = isArray(object),\n othIsArr = isArray(other),\n objTag = arrayTag,\n othTag = arrayTag;\n\n if (!objIsArr) {\n objTag = getTag(object);\n objTag = objTag == argsTag ? objectTag : objTag;\n }\n if (!othIsArr) {\n othTag = getTag(other);\n othTag = othTag == argsTag ? objectTag : othTag;\n }\n var objIsObj = objTag == objectTag && !isHostObject(object),\n othIsObj = othTag == objectTag && !isHostObject(other),\n isSameTag = objTag == othTag;\n\n if (isSameTag && !objIsObj) {\n stack || (stack = new Stack);\n return (objIsArr || isTypedArray(object))\n ? equalArrays(object, other, equalFunc, customizer, bitmask, stack)\n : equalByTag(object, other, objTag, equalFunc, customizer, bitmask, stack);\n }\n if (!(bitmask & PARTIAL_COMPARE_FLAG)) {\n var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),\n othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');\n\n if (objIsWrapped || othIsWrapped) {\n var objUnwrapped = objIsWrapped ? object.value() : object,\n othUnwrapped = othIsWrapped ? other.value() : other;\n\n stack || (stack = new Stack);\n return equalFunc(objUnwrapped, othUnwrapped, customizer, bitmask, stack);\n }\n }\n if (!isSameTag) {\n return false;\n }\n stack || (stack = new Stack);\n return equalObjects(object, other, equalFunc, customizer, bitmask, stack);\n}\n\n/**\n * The base implementation of `_.isMatch` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @param {Array} matchData The property names, values, and compare flags to match.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n */\nfunction baseIsMatch(object, source, matchData, customizer) {\n var index = matchData.length,\n length = index,\n noCustomizer = !customizer;\n\n if (object == null) {\n return !length;\n }\n object = Object(object);\n while (index--) {\n var data = matchData[index];\n if ((noCustomizer && data[2])\n ? data[1] !== object[data[0]]\n : !(data[0] in object)\n ) {\n return false;\n }\n }\n while (++index < length) {\n data = matchData[index];\n var key = data[0],\n objValue = object[key],\n srcValue = data[1];\n\n if (noCustomizer && data[2]) {\n if (objValue === undefined && !(key in object)) {\n return false;\n }\n } else {\n var stack = new Stack;\n if (customizer) {\n var result = customizer(objValue, srcValue, key, object, source, stack);\n }\n if (!(result === undefined\n ? baseIsEqual(srcValue, objValue, customizer, UNORDERED_COMPARE_FLAG | PARTIAL_COMPARE_FLAG, stack)\n : result\n )) {\n return false;\n }\n }\n }\n return true;\n}\n\n/**\n * The base implementation of `_.isNative` without bad shim checks.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n */\nfunction baseIsNative(value) {\n if (!isObject(value) || isMasked(value)) {\n return false;\n }\n var pattern = (isFunction(value) || isHostObject(value)) ? reIsNative : reIsHostCtor;\n return pattern.test(toSource(value));\n}\n\n/**\n * The base implementation of `_.isTypedArray` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n */\nfunction baseIsTypedArray(value) {\n return isObjectLike(value) &&\n isLength(value.length) && !!typedArrayTags[objectToString.call(value)];\n}\n\n/**\n * The base implementation of `_.iteratee`.\n *\n * @private\n * @param {*} [value=_.identity] The value to convert to an iteratee.\n * @returns {Function} Returns the iteratee.\n */\nfunction baseIteratee(value) {\n // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.\n // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.\n if (typeof value == 'function') {\n return value;\n }\n if (value == null) {\n return identity;\n }\n if (typeof value == 'object') {\n return isArray(value)\n ? baseMatchesProperty(value[0], value[1])\n : baseMatches(value);\n }\n return property(value);\n}\n\n/**\n * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\nfunction baseKeys(object) {\n if (!isPrototype(object)) {\n return nativeKeys(object);\n }\n var result = [];\n for (var key in Object(object)) {\n if (hasOwnProperty.call(object, key) && key != 'constructor') {\n result.push(key);\n }\n }\n return result;\n}\n\n/**\n * The base implementation of `_.matches` which doesn't clone `source`.\n *\n * @private\n * @param {Object} source The object of property values to match.\n * @returns {Function} Returns the new spec function.\n */\nfunction baseMatches(source) {\n var matchData = getMatchData(source);\n if (matchData.length == 1 && matchData[0][2]) {\n return matchesStrictComparable(matchData[0][0], matchData[0][1]);\n }\n return function(object) {\n return object === source || baseIsMatch(object, source, matchData);\n };\n}\n\n/**\n * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.\n *\n * @private\n * @param {string} path The path of the property to get.\n * @param {*} srcValue The value to match.\n * @returns {Function} Returns the new spec function.\n */\nfunction baseMatchesProperty(path, srcValue) {\n if (isKey(path) && isStrictComparable(srcValue)) {\n return matchesStrictComparable(toKey(path), srcValue);\n }\n return function(object) {\n var objValue = get(object, path);\n return (objValue === undefined && objValue === srcValue)\n ? hasIn(object, path)\n : baseIsEqual(srcValue, objValue, undefined, UNORDERED_COMPARE_FLAG | PARTIAL_COMPARE_FLAG);\n };\n}\n\n/**\n * A specialized version of `baseProperty` which supports deep paths.\n *\n * @private\n * @param {Array|string} path The path of the property to get.\n * @returns {Function} Returns the new accessor function.\n */\nfunction basePropertyDeep(path) {\n return function(object) {\n return baseGet(object, path);\n };\n}\n\n/**\n * The base implementation of `_.toString` which doesn't convert nullish\n * values to empty strings.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {string} Returns the string.\n */\nfunction baseToString(value) {\n // Exit early for strings to avoid a performance hit in some environments.\n if (typeof value == 'string') {\n return value;\n }\n if (isSymbol(value)) {\n return symbolToString ? symbolToString.call(value) : '';\n }\n var result = (value + '');\n return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n}\n\n/**\n * Casts `value` to a path array if it's not one.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {Array} Returns the cast property path array.\n */\nfunction castPath(value) {\n return isArray(value) ? value : stringToPath(value);\n}\n\n/**\n * Creates a `baseEach` or `baseEachRight` function.\n *\n * @private\n * @param {Function} eachFunc The function to iterate over a collection.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\nfunction createBaseEach(eachFunc, fromRight) {\n return function(collection, iteratee) {\n if (collection == null) {\n return collection;\n }\n if (!isArrayLike(collection)) {\n return eachFunc(collection, iteratee);\n }\n var length = collection.length,\n index = fromRight ? length : -1,\n iterable = Object(collection);\n\n while ((fromRight ? index-- : ++index < length)) {\n if (iteratee(iterable[index], index, iterable) === false) {\n break;\n }\n }\n return collection;\n };\n}\n\n/**\n * Creates a base function for methods like `_.forIn` and `_.forOwn`.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\nfunction createBaseFor(fromRight) {\n return function(object, iteratee, keysFunc) {\n var index = -1,\n iterable = Object(object),\n props = keysFunc(object),\n length = props.length;\n\n while (length--) {\n var key = props[fromRight ? length : ++index];\n if (iteratee(iterable[key], key, iterable) === false) {\n break;\n }\n }\n return object;\n };\n}\n\n/**\n * A specialized version of `baseIsEqualDeep` for arrays with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Array} array The array to compare.\n * @param {Array} other The other array to compare.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Function} customizer The function to customize comparisons.\n * @param {number} bitmask The bitmask of comparison flags. See `baseIsEqual`\n * for more details.\n * @param {Object} stack Tracks traversed `array` and `other` objects.\n * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.\n */\nfunction equalArrays(array, other, equalFunc, customizer, bitmask, stack) {\n var isPartial = bitmask & PARTIAL_COMPARE_FLAG,\n arrLength = array.length,\n othLength = other.length;\n\n if (arrLength != othLength && !(isPartial && othLength > arrLength)) {\n return false;\n }\n // Assume cyclic values are equal.\n var stacked = stack.get(array);\n if (stacked && stack.get(other)) {\n return stacked == other;\n }\n var index = -1,\n result = true,\n seen = (bitmask & UNORDERED_COMPARE_FLAG) ? new SetCache : undefined;\n\n stack.set(array, other);\n stack.set(other, array);\n\n // Ignore non-index properties.\n while (++index < arrLength) {\n var arrValue = array[index],\n othValue = other[index];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, arrValue, index, other, array, stack)\n : customizer(arrValue, othValue, index, array, other, stack);\n }\n if (compared !== undefined) {\n if (compared) {\n continue;\n }\n result = false;\n break;\n }\n // Recursively compare arrays (susceptible to call stack limits).\n if (seen) {\n if (!arraySome(other, function(othValue, othIndex) {\n if (!seen.has(othIndex) &&\n (arrValue === othValue || equalFunc(arrValue, othValue, customizer, bitmask, stack))) {\n return seen.add(othIndex);\n }\n })) {\n result = false;\n break;\n }\n } else if (!(\n arrValue === othValue ||\n equalFunc(arrValue, othValue, customizer, bitmask, stack)\n )) {\n result = false;\n break;\n }\n }\n stack['delete'](array);\n stack['delete'](other);\n return result;\n}\n\n/**\n * A specialized version of `baseIsEqualDeep` for comparing objects of\n * the same `toStringTag`.\n *\n * **Note:** This function only supports comparing values with tags of\n * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {string} tag The `toStringTag` of the objects to compare.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Function} customizer The function to customize comparisons.\n * @param {number} bitmask The bitmask of comparison flags. See `baseIsEqual`\n * for more details.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction equalByTag(object, other, tag, equalFunc, customizer, bitmask, stack) {\n switch (tag) {\n case dataViewTag:\n if ((object.byteLength != other.byteLength) ||\n (object.byteOffset != other.byteOffset)) {\n return false;\n }\n object = object.buffer;\n other = other.buffer;\n\n case arrayBufferTag:\n if ((object.byteLength != other.byteLength) ||\n !equalFunc(new Uint8Array(object), new Uint8Array(other))) {\n return false;\n }\n return true;\n\n case boolTag:\n case dateTag:\n case numberTag:\n // Coerce booleans to `1` or `0` and dates to milliseconds.\n // Invalid dates are coerced to `NaN`.\n return eq(+object, +other);\n\n case errorTag:\n return object.name == other.name && object.message == other.message;\n\n case regexpTag:\n case stringTag:\n // Coerce regexes to strings and treat strings, primitives and objects,\n // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring\n // for more details.\n return object == (other + '');\n\n case mapTag:\n var convert = mapToArray;\n\n case setTag:\n var isPartial = bitmask & PARTIAL_COMPARE_FLAG;\n convert || (convert = setToArray);\n\n if (object.size != other.size && !isPartial) {\n return false;\n }\n // Assume cyclic values are equal.\n var stacked = stack.get(object);\n if (stacked) {\n return stacked == other;\n }\n bitmask |= UNORDERED_COMPARE_FLAG;\n\n // Recursively compare objects (susceptible to call stack limits).\n stack.set(object, other);\n var result = equalArrays(convert(object), convert(other), equalFunc, customizer, bitmask, stack);\n stack['delete'](object);\n return result;\n\n case symbolTag:\n if (symbolValueOf) {\n return symbolValueOf.call(object) == symbolValueOf.call(other);\n }\n }\n return false;\n}\n\n/**\n * A specialized version of `baseIsEqualDeep` for objects with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Function} customizer The function to customize comparisons.\n * @param {number} bitmask The bitmask of comparison flags. See `baseIsEqual`\n * for more details.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction equalObjects(object, other, equalFunc, customizer, bitmask, stack) {\n var isPartial = bitmask & PARTIAL_COMPARE_FLAG,\n objProps = keys(object),\n objLength = objProps.length,\n othProps = keys(other),\n othLength = othProps.length;\n\n if (objLength != othLength && !isPartial) {\n return false;\n }\n var index = objLength;\n while (index--) {\n var key = objProps[index];\n if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {\n return false;\n }\n }\n // Assume cyclic values are equal.\n var stacked = stack.get(object);\n if (stacked && stack.get(other)) {\n return stacked == other;\n }\n var result = true;\n stack.set(object, other);\n stack.set(other, object);\n\n var skipCtor = isPartial;\n while (++index < objLength) {\n key = objProps[index];\n var objValue = object[key],\n othValue = other[key];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, objValue, key, other, object, stack)\n : customizer(objValue, othValue, key, object, other, stack);\n }\n // Recursively compare objects (susceptible to call stack limits).\n if (!(compared === undefined\n ? (objValue === othValue || equalFunc(objValue, othValue, customizer, bitmask, stack))\n : compared\n )) {\n result = false;\n break;\n }\n skipCtor || (skipCtor = key == 'constructor');\n }\n if (result && !skipCtor) {\n var objCtor = object.constructor,\n othCtor = other.constructor;\n\n // Non `Object` object instances with different constructors are not equal.\n if (objCtor != othCtor &&\n ('constructor' in object && 'constructor' in other) &&\n !(typeof objCtor == 'function' && objCtor instanceof objCtor &&\n typeof othCtor == 'function' && othCtor instanceof othCtor)) {\n result = false;\n }\n }\n stack['delete'](object);\n stack['delete'](other);\n return result;\n}\n\n/**\n * Gets the data for `map`.\n *\n * @private\n * @param {Object} map The map to query.\n * @param {string} key The reference key.\n * @returns {*} Returns the map data.\n */\nfunction getMapData(map, key) {\n var data = map.__data__;\n return isKeyable(key)\n ? data[typeof key == 'string' ? 'string' : 'hash']\n : data.map;\n}\n\n/**\n * Gets the property names, values, and compare flags of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the match data of `object`.\n */\nfunction getMatchData(object) {\n var result = keys(object),\n length = result.length;\n\n while (length--) {\n var key = result[length],\n value = object[key];\n\n result[length] = [key, value, isStrictComparable(value)];\n }\n return result;\n}\n\n/**\n * Gets the native function at `key` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the method to get.\n * @returns {*} Returns the function if it's native, else `undefined`.\n */\nfunction getNative(object, key) {\n var value = getValue(object, key);\n return baseIsNative(value) ? value : undefined;\n}\n\n/**\n * Gets the `toStringTag` of `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\nvar getTag = baseGetTag;\n\n// Fallback for data views, maps, sets, and weak maps in IE 11,\n// for data views in Edge < 14, and promises in Node.js.\nif ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||\n (Map && getTag(new Map) != mapTag) ||\n (Promise && getTag(Promise.resolve()) != promiseTag) ||\n (Set && getTag(new Set) != setTag) ||\n (WeakMap && getTag(new WeakMap) != weakMapTag)) {\n getTag = function(value) {\n var result = objectToString.call(value),\n Ctor = result == objectTag ? value.constructor : undefined,\n ctorString = Ctor ? toSource(Ctor) : undefined;\n\n if (ctorString) {\n switch (ctorString) {\n case dataViewCtorString: return dataViewTag;\n case mapCtorString: return mapTag;\n case promiseCtorString: return promiseTag;\n case setCtorString: return setTag;\n case weakMapCtorString: return weakMapTag;\n }\n }\n return result;\n };\n}\n\n/**\n * Checks if `path` exists on `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @param {Function} hasFunc The function to check properties.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n */\nfunction hasPath(object, path, hasFunc) {\n path = isKey(path, object) ? [path] : castPath(path);\n\n var result,\n index = -1,\n length = path.length;\n\n while (++index < length) {\n var key = toKey(path[index]);\n if (!(result = object != null && hasFunc(object, key))) {\n break;\n }\n object = object[key];\n }\n if (result) {\n return result;\n }\n var length = object ? object.length : 0;\n return !!length && isLength(length) && isIndex(key, length) &&\n (isArray(object) || isArguments(object));\n}\n\n/**\n * Checks if `value` is a valid array-like index.\n *\n * @private\n * @param {*} value The value to check.\n * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n */\nfunction isIndex(value, length) {\n length = length == null ? MAX_SAFE_INTEGER : length;\n return !!length &&\n (typeof value == 'number' || reIsUint.test(value)) &&\n (value > -1 && value % 1 == 0 && value < length);\n}\n\n/**\n * Checks if `value` is a property name and not a property path.\n *\n * @private\n * @param {*} value The value to check.\n * @param {Object} [object] The object to query keys on.\n * @returns {boolean} Returns `true` if `value` is a property name, else `false`.\n */\nfunction isKey(value, object) {\n if (isArray(value)) {\n return false;\n }\n var type = typeof value;\n if (type == 'number' || type == 'symbol' || type == 'boolean' ||\n value == null || isSymbol(value)) {\n return true;\n }\n return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||\n (object != null && value in Object(object));\n}\n\n/**\n * Checks if `value` is suitable for use as unique object key.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is suitable, else `false`.\n */\nfunction isKeyable(value) {\n var type = typeof value;\n return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')\n ? (value !== '__proto__')\n : (value === null);\n}\n\n/**\n * Checks if `func` has its source masked.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` is masked, else `false`.\n */\nfunction isMasked(func) {\n return !!maskSrcKey && (maskSrcKey in func);\n}\n\n/**\n * Checks if `value` is likely a prototype object.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.\n */\nfunction isPrototype(value) {\n var Ctor = value && value.constructor,\n proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;\n\n return value === proto;\n}\n\n/**\n * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` if suitable for strict\n * equality comparisons, else `false`.\n */\nfunction isStrictComparable(value) {\n return value === value && !isObject(value);\n}\n\n/**\n * A specialized version of `matchesProperty` for source values suitable\n * for strict equality comparisons, i.e. `===`.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @param {*} srcValue The value to match.\n * @returns {Function} Returns the new spec function.\n */\nfunction matchesStrictComparable(key, srcValue) {\n return function(object) {\n if (object == null) {\n return false;\n }\n return object[key] === srcValue &&\n (srcValue !== undefined || (key in Object(object)));\n };\n}\n\n/**\n * Converts `string` to a property path array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the property path array.\n */\nvar stringToPath = memoize(function(string) {\n string = toString(string);\n\n var result = [];\n if (reLeadingDot.test(string)) {\n result.push('');\n }\n string.replace(rePropName, function(match, number, quote, string) {\n result.push(quote ? string.replace(reEscapeChar, '$1') : (number || match));\n });\n return result;\n});\n\n/**\n * Converts `value` to a string key if it's not a string or symbol.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {string|symbol} Returns the key.\n */\nfunction toKey(value) {\n if (typeof value == 'string' || isSymbol(value)) {\n return value;\n }\n var result = (value + '');\n return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n}\n\n/**\n * Converts `func` to its source code.\n *\n * @private\n * @param {Function} func The function to process.\n * @returns {string} Returns the source code.\n */\nfunction toSource(func) {\n if (func != null) {\n try {\n return funcToString.call(func);\n } catch (e) {}\n try {\n return (func + '');\n } catch (e) {}\n }\n return '';\n}\n\n/**\n * Reduces `collection` to a value which is the accumulated result of running\n * each element in `collection` thru `iteratee`, where each successive\n * invocation is supplied the return value of the previous. If `accumulator`\n * is not given, the first element of `collection` is used as the initial\n * value. The iteratee is invoked with four arguments:\n * (accumulator, value, index|key, collection).\n *\n * Many lodash methods are guarded to work as iteratees for methods like\n * `_.reduce`, `_.reduceRight`, and `_.transform`.\n *\n * The guarded methods are:\n * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,\n * and `sortBy`\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @returns {*} Returns the accumulated value.\n * @see _.reduceRight\n * @example\n *\n * _.reduce([1, 2], function(sum, n) {\n * return sum + n;\n * }, 0);\n * // => 3\n *\n * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {\n * (result[value] || (result[value] = [])).push(key);\n * return result;\n * }, {});\n * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)\n */\nfunction reduce(collection, iteratee, accumulator) {\n var func = isArray(collection) ? arrayReduce : baseReduce,\n initAccum = arguments.length < 3;\n\n return func(collection, baseIteratee(iteratee, 4), accumulator, initAccum, baseEach);\n}\n\n/**\n * Creates a function that memoizes the result of `func`. If `resolver` is\n * provided, it determines the cache key for storing the result based on the\n * arguments provided to the memoized function. By default, the first argument\n * provided to the memoized function is used as the map cache key. The `func`\n * is invoked with the `this` binding of the memoized function.\n *\n * **Note:** The cache is exposed as the `cache` property on the memoized\n * function. Its creation may be customized by replacing the `_.memoize.Cache`\n * constructor with one whose instances implement the\n * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)\n * method interface of `delete`, `get`, `has`, and `set`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to have its output memoized.\n * @param {Function} [resolver] The function to resolve the cache key.\n * @returns {Function} Returns the new memoized function.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n * var other = { 'c': 3, 'd': 4 };\n *\n * var values = _.memoize(_.values);\n * values(object);\n * // => [1, 2]\n *\n * values(other);\n * // => [3, 4]\n *\n * object.a = 2;\n * values(object);\n * // => [1, 2]\n *\n * // Modify the result cache.\n * values.cache.set(object, ['a', 'b']);\n * values(object);\n * // => ['a', 'b']\n *\n * // Replace `_.memoize.Cache`.\n * _.memoize.Cache = WeakMap;\n */\nfunction memoize(func, resolver) {\n if (typeof func != 'function' || (resolver && typeof resolver != 'function')) {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n var memoized = function() {\n var args = arguments,\n key = resolver ? resolver.apply(this, args) : args[0],\n cache = memoized.cache;\n\n if (cache.has(key)) {\n return cache.get(key);\n }\n var result = func.apply(this, args);\n memoized.cache = cache.set(key, result);\n return result;\n };\n memoized.cache = new (memoize.Cache || MapCache);\n return memoized;\n}\n\n// Assign cache to `_.memoize`.\nmemoize.Cache = MapCache;\n\n/**\n * Performs a\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * comparison between two values to determine if they are equivalent.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.eq(object, object);\n * // => true\n *\n * _.eq(object, other);\n * // => false\n *\n * _.eq('a', 'a');\n * // => true\n *\n * _.eq('a', Object('a'));\n * // => false\n *\n * _.eq(NaN, NaN);\n * // => true\n */\nfunction eq(value, other) {\n return value === other || (value !== value && other !== other);\n}\n\n/**\n * Checks if `value` is likely an `arguments` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n * else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\nfunction isArguments(value) {\n // Safari 8.1 makes `arguments.callee` enumerable in strict mode.\n return isArrayLikeObject(value) && hasOwnProperty.call(value, 'callee') &&\n (!propertyIsEnumerable.call(value, 'callee') || objectToString.call(value) == argsTag);\n}\n\n/**\n * Checks if `value` is classified as an `Array` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array, else `false`.\n * @example\n *\n * _.isArray([1, 2, 3]);\n * // => true\n *\n * _.isArray(document.body.children);\n * // => false\n *\n * _.isArray('abc');\n * // => false\n *\n * _.isArray(_.noop);\n * // => false\n */\nvar isArray = Array.isArray;\n\n/**\n * Checks if `value` is array-like. A value is considered array-like if it's\n * not a function and has a `value.length` that's an integer greater than or\n * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n * @example\n *\n * _.isArrayLike([1, 2, 3]);\n * // => true\n *\n * _.isArrayLike(document.body.children);\n * // => true\n *\n * _.isArrayLike('abc');\n * // => true\n *\n * _.isArrayLike(_.noop);\n * // => false\n */\nfunction isArrayLike(value) {\n return value != null && isLength(value.length) && !isFunction(value);\n}\n\n/**\n * This method is like `_.isArrayLike` except that it also checks if `value`\n * is an object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array-like object,\n * else `false`.\n * @example\n *\n * _.isArrayLikeObject([1, 2, 3]);\n * // => true\n *\n * _.isArrayLikeObject(document.body.children);\n * // => true\n *\n * _.isArrayLikeObject('abc');\n * // => false\n *\n * _.isArrayLikeObject(_.noop);\n * // => false\n */\nfunction isArrayLikeObject(value) {\n return isObjectLike(value) && isArrayLike(value);\n}\n\n/**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a function, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\nfunction isFunction(value) {\n // The use of `Object#toString` avoids issues with the `typeof` operator\n // in Safari 8-9 which returns 'object' for typed array and other constructors.\n var tag = isObject(value) ? objectToString.call(value) : '';\n return tag == funcTag || tag == genTag;\n}\n\n/**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This method is loosely based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n * @example\n *\n * _.isLength(3);\n * // => true\n *\n * _.isLength(Number.MIN_VALUE);\n * // => false\n *\n * _.isLength(Infinity);\n * // => false\n *\n * _.isLength('3');\n * // => false\n */\nfunction isLength(value) {\n return typeof value == 'number' &&\n value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n}\n\n/**\n * Checks if `value` is the\n * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\nfunction isObject(value) {\n var type = typeof value;\n return !!value && (type == 'object' || type == 'function');\n}\n\n/**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\nfunction isObjectLike(value) {\n return !!value && typeof value == 'object';\n}\n\n/**\n * Checks if `value` is classified as a `Symbol` primitive or object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n * @example\n *\n * _.isSymbol(Symbol.iterator);\n * // => true\n *\n * _.isSymbol('abc');\n * // => false\n */\nfunction isSymbol(value) {\n return typeof value == 'symbol' ||\n (isObjectLike(value) && objectToString.call(value) == symbolTag);\n}\n\n/**\n * Checks if `value` is classified as a typed array.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n * @example\n *\n * _.isTypedArray(new Uint8Array);\n * // => true\n *\n * _.isTypedArray([]);\n * // => false\n */\nvar isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;\n\n/**\n * Converts `value` to a string. An empty string is returned for `null`\n * and `undefined` values. The sign of `-0` is preserved.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to process.\n * @returns {string} Returns the string.\n * @example\n *\n * _.toString(null);\n * // => ''\n *\n * _.toString(-0);\n * // => '-0'\n *\n * _.toString([1, 2, 3]);\n * // => '1,2,3'\n */\nfunction toString(value) {\n return value == null ? '' : baseToString(value);\n}\n\n/**\n * Gets the value at `path` of `object`. If the resolved value is\n * `undefined`, the `defaultValue` is returned in its place.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.get(object, 'a[0].b.c');\n * // => 3\n *\n * _.get(object, ['a', '0', 'b', 'c']);\n * // => 3\n *\n * _.get(object, 'a.b.c', 'default');\n * // => 'default'\n */\nfunction get(object, path, defaultValue) {\n var result = object == null ? undefined : baseGet(object, path);\n return result === undefined ? defaultValue : result;\n}\n\n/**\n * Checks if `path` is a direct or inherited property of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n * @example\n *\n * var object = _.create({ 'a': _.create({ 'b': 2 }) });\n *\n * _.hasIn(object, 'a');\n * // => true\n *\n * _.hasIn(object, 'a.b');\n * // => true\n *\n * _.hasIn(object, ['a', 'b']);\n * // => true\n *\n * _.hasIn(object, 'b');\n * // => false\n */\nfunction hasIn(object, path) {\n return object != null && hasPath(object, path, baseHasIn);\n}\n\n/**\n * Creates an array of the own enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects. See the\n * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * for more details.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keys(new Foo);\n * // => ['a', 'b'] (iteration order is not guaranteed)\n *\n * _.keys('hi');\n * // => ['0', '1']\n */\nfunction keys(object) {\n return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);\n}\n\n/**\n * This method returns the first argument it receives.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Util\n * @param {*} value Any value.\n * @returns {*} Returns `value`.\n * @example\n *\n * var object = { 'a': 1 };\n *\n * console.log(_.identity(object) === object);\n * // => true\n */\nfunction identity(value) {\n return value;\n}\n\n/**\n * Creates a function that returns the value at `path` of a given object.\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Util\n * @param {Array|string} path The path of the property to get.\n * @returns {Function} Returns the new accessor function.\n * @example\n *\n * var objects = [\n * { 'a': { 'b': 2 } },\n * { 'a': { 'b': 1 } }\n * ];\n *\n * _.map(objects, _.property('a.b'));\n * // => [2, 1]\n *\n * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b');\n * // => [1, 2]\n */\nfunction property(path) {\n return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path);\n}\n\nmodule.exports = reduce;\n","'use strict';\n\nexports.__esModule = true;\nexports.i18n = exports.use = exports.t = undefined;\n\nvar _zhCN = require('element-ui/lib/locale/lang/zh-CN');\n\nvar _zhCN2 = _interopRequireDefault(_zhCN);\n\nvar _vue = require('vue');\n\nvar _vue2 = _interopRequireDefault(_vue);\n\nvar _deepmerge = require('deepmerge');\n\nvar _deepmerge2 = _interopRequireDefault(_deepmerge);\n\nvar _format = require('./format');\n\nvar _format2 = _interopRequireDefault(_format);\n\nfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }\n\nvar format = (0, _format2.default)(_vue2.default);\nvar lang = _zhCN2.default;\nvar merged = false;\nvar i18nHandler = function i18nHandler() {\n var vuei18n = Object.getPrototypeOf(this || _vue2.default).$t;\n if (typeof vuei18n === 'function' && !!_vue2.default.locale) {\n if (!merged) {\n merged = true;\n _vue2.default.locale(_vue2.default.config.lang, (0, _deepmerge2.default)(lang, _vue2.default.locale(_vue2.default.config.lang) || {}, { clone: true }));\n }\n return vuei18n.apply(this, arguments);\n }\n};\n\nvar t = exports.t = function t(path, options) {\n var value = i18nHandler.apply(this, arguments);\n if (value !== null && value !== undefined) return value;\n\n var array = path.split('.');\n var current = lang;\n\n for (var i = 0, j = array.length; i < j; i++) {\n var property = array[i];\n value = current[property];\n if (i === j - 1) return format(value, options);\n if (!value) return '';\n current = value;\n }\n return '';\n};\n\nvar use = exports.use = function use(l) {\n lang = l || lang;\n};\n\nvar i18n = exports.i18n = function i18n(fn) {\n i18nHandler = fn || i18nHandler;\n};\n\nexports.default = { use: use, t: t, i18n: i18n };","'use strict';\n\nvar utils = require('./utils');\n\nmodule.exports = function makeJuiceClient(juiceClient) {\n\njuiceClient.ignoredPseudos = ['hover', 'active', 'focus', 'visited', 'link'];\njuiceClient.widthElements = ['TABLE', 'TD', 'TH', 'IMG'];\njuiceClient.heightElements = ['TABLE', 'TD', 'TH', 'IMG'];\njuiceClient.tableElements = ['TABLE', 'TH', 'TR', 'TD', 'CAPTION', 'COLGROUP', 'COL', 'THEAD', 'TBODY', 'TFOOT'];\njuiceClient.nonVisualElements = [ 'HEAD', 'TITLE', 'BASE', 'LINK', 'STYLE', 'META', 'SCRIPT', 'NOSCRIPT' ];\njuiceClient.styleToAttribute = {\n 'background-color': 'bgcolor',\n 'background-image': 'background',\n 'text-align': 'align',\n 'vertical-align': 'valign'\n};\njuiceClient.excludedProperties = [];\n\njuiceClient.juiceDocument = juiceDocument;\njuiceClient.inlineDocument = inlineDocument;\n\nfunction inlineDocument($, css, options) {\n\n options = options || {};\n var rules = utils.parseCSS(css);\n var editedElements = [];\n var styleAttributeName = 'style';\n\n if (options.styleAttributeName) {\n styleAttributeName = options.styleAttributeName;\n }\n\n rules.forEach(handleRule);\n editedElements.forEach(setStyleAttrs);\n\n if (options.inlinePseudoElements) {\n editedElements.forEach(inlinePseudoElements);\n }\n\n if (options.applyWidthAttributes) {\n editedElements.forEach(function(el) {\n setDimensionAttrs(el, 'width');\n });\n }\n\n if (options.applyHeightAttributes) {\n editedElements.forEach(function(el) {\n setDimensionAttrs(el, 'height');\n });\n }\n\n if (options.applyAttributesTableElements) {\n editedElements.forEach(setAttributesOnTableElements);\n }\n\n if (options.insertPreservedExtraCss && options.extraCss) {\n var preservedText = utils.getPreservedText(options.extraCss, {\n mediaQueries: options.preserveMediaQueries,\n fontFaces: options.preserveFontFaces,\n keyFrames: options.preserveKeyFrames\n });\n if (preservedText) {\n var $appendTo = null;\n if (options.insertPreservedExtraCss !== true) {\n $appendTo = $(options.insertPreservedExtraCss);\n } else {\n $appendTo = $('head');\n if (!$appendTo.length) { $appendTo = $('body'); }\n if (!$appendTo.length) { $appendTo = $.root(); }\n }\n\n $appendTo.first().append('');\n }\n }\n\n function handleRule(rule) {\n var sel = rule[0];\n var style = rule[1];\n var selector = new utils.Selector(sel);\n var parsedSelector = selector.parsed();\n var pseudoElementType = getPseudoElementType(parsedSelector);\n\n // skip rule if the selector has any pseudos which are ignored\n for (var i = 0; i < parsedSelector.length; ++i) {\n var subSel = parsedSelector[i];\n if (subSel.pseudos) {\n for (var j = 0; j < subSel.pseudos.length; ++j) {\n var subSelPseudo = subSel.pseudos[j];\n if (juiceClient.ignoredPseudos.indexOf(subSelPseudo.name) >= 0) {\n return;\n }\n }\n }\n }\n\n if (pseudoElementType) {\n var last = parsedSelector[parsedSelector.length - 1];\n var pseudos = last.pseudos;\n last.pseudos = filterElementPseudos(last.pseudos);\n sel = parsedSelector.toString();\n last.pseudos = pseudos;\n }\n\n var els;\n try {\n els = $(sel);\n } catch (err) {\n // skip invalid selector\n return;\n }\n\n els.each(function() {\n var el = this;\n\n if (el.name && juiceClient.nonVisualElements.indexOf(el.name.toUpperCase()) >= 0) {\n return;\n }\n\n if (pseudoElementType) {\n var pseudoElPropName = 'pseudo' + pseudoElementType;\n var pseudoEl = el[pseudoElPropName];\n if (!pseudoEl) {\n pseudoEl = el[pseudoElPropName] = $('').get(0);\n pseudoEl.pseudoElementType = pseudoElementType;\n pseudoEl.pseudoElementParent = el;\n el[pseudoElPropName] = pseudoEl;\n }\n el = pseudoEl;\n }\n\n if (!el.styleProps) {\n el.styleProps = {};\n\n // if the element has inline styles, fake selector with topmost specificity\n if ($(el).attr(styleAttributeName)) {\n var cssText = '* { ' + $(el).attr(styleAttributeName) + ' } ';\n addProps(utils.parseCSS(cssText)[0][1], new utils.Selector('