vue-plyr/dist/vue-plyr.polyfilled.ssr.js

A vue component for the plyr video & audio player.

'use strict';Object.defineProperty(exports,'__esModule',{value:true});var fails = function (exec) {
  try {
    return !!exec();
  } catch (error) {
    return true;
  }
};var descriptors = !fails(function () {
  return Object.defineProperty({}, 1, {
    get: function () {
      return 7;
    }
  })[1] != 7;
});var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};

function createCommonjsModule(fn, basedir, module) {
	return module = {
		path: basedir,
		exports: {},
		require: function (path, base) {
			return commonjsRequire(path, (base === undefined || base === null) ? module.path : base);
		}
	}, fn(module, module.exports), module.exports;
}

function commonjsRequire () {
	throw new Error('Dynamic requires are not currently supported by @rollup/plugin-commonjs');
}var check = function (it) {
  return it && it.Math == Math && it;
}; // https://github.com/zloirock/core-js/issues/86#issuecomment-115759028


var global_1 = // eslint-disable-next-line no-undef
check(typeof globalThis == 'object' && globalThis) || check(typeof window == 'object' && window) || check(typeof self == 'object' && self) || check(typeof commonjsGlobal == 'object' && commonjsGlobal) || // eslint-disable-next-line no-new-func
Function('return this')();var isObject = function (it) {
  return typeof it === 'object' ? it !== null : typeof it === 'function';
};var document$1 = global_1.document; // typeof document.createElement is 'object' in old IE

var EXISTS = isObject(document$1) && isObject(document$1.createElement);

var documentCreateElement = function (it) {
  return EXISTS ? document$1.createElement(it) : {};
};var ie8DomDefine = !descriptors && !fails(function () {
  return Object.defineProperty(documentCreateElement('div'), 'a', {
    get: function () {
      return 7;
    }
  }).a != 7;
});var anObject = function (it) {
  if (!isObject(it)) {
    throw TypeError(String(it) + ' is not an object');
  }

  return it;
};// https://tc39.github.io/ecma262/#sec-toprimitive
// instead of the ES6 spec version, we didn't implement @@toPrimitive case
// and the second argument - flag - preferred type is a string

var toPrimitive = function (input, PREFERRED_STRING) {
  if (!isObject(input)) return input;
  var fn, val;
  if (PREFERRED_STRING && typeof (fn = input.toString) == 'function' && !isObject(val = fn.call(input))) return val;
  if (typeof (fn = input.valueOf) == 'function' && !isObject(val = fn.call(input))) return val;
  if (!PREFERRED_STRING && typeof (fn = input.toString) == 'function' && !isObject(val = fn.call(input))) return val;
  throw TypeError("Can't convert object to primitive value");
};var nativeDefineProperty = Object.defineProperty; // `Object.defineProperty` method
// https://tc39.github.io/ecma262/#sec-object.defineproperty

var f = descriptors ? nativeDefineProperty : function defineProperty(O, P, Attributes) {
  anObject(O);
  P = toPrimitive(P, true);
  anObject(Attributes);
  if (ie8DomDefine) try {
    return nativeDefineProperty(O, P, Attributes);
  } catch (error) {
    /* empty */
  }
  if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported');
  if ('value' in Attributes) O[P] = Attributes.value;
  return O;
};
var objectDefineProperty = {
  f: f
};var defineProperty = objectDefineProperty.f;
var FunctionPrototype = Function.prototype;
var FunctionPrototypeToString = FunctionPrototype.toString;
var nameRE = /^\s*function ([^ (]*)/;
var NAME = 'name'; // Function instances `.name` property
// https://tc39.github.io/ecma262/#sec-function-instances-name

if (descriptors && !(NAME in FunctionPrototype)) {
  defineProperty(FunctionPrototype, NAME, {
    configurable: true,
    get: function () {
      try {
        return FunctionPrototypeToString.call(this).match(nameRE)[1];
      } catch (error) {
        return '';
      }
    }
  });
}var nativePropertyIsEnumerable = {}.propertyIsEnumerable;
var getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor; // Nashorn ~ JDK8 bug

var NASHORN_BUG = getOwnPropertyDescriptor && !nativePropertyIsEnumerable.call({
  1: 2
}, 1); // `Object.prototype.propertyIsEnumerable` method implementation
// https://tc39.github.io/ecma262/#sec-object.prototype.propertyisenumerable

var f$1 = NASHORN_BUG ? function propertyIsEnumerable(V) {
  var descriptor = getOwnPropertyDescriptor(this, V);
  return !!descriptor && descriptor.enumerable;
} : nativePropertyIsEnumerable;
var objectPropertyIsEnumerable = {
  f: f$1
};var createPropertyDescriptor = function (bitmap, value) {
  return {
    enumerable: !(bitmap & 1),
    configurable: !(bitmap & 2),
    writable: !(bitmap & 4),
    value: value
  };
};var toString = {}.toString;

var classofRaw = function (it) {
  return toString.call(it).slice(8, -1);
};var split = ''.split; // fallback for non-array-like ES3 and non-enumerable old V8 strings

var indexedObject = fails(function () {
  // throws an error in rhino, see https://github.com/mozilla/rhino/issues/346
  // eslint-disable-next-line no-prototype-builtins
  return !Object('z').propertyIsEnumerable(0);
}) ? function (it) {
  return classofRaw(it) == 'String' ? split.call(it, '') : Object(it);
} : Object;// `RequireObjectCoercible` abstract operation
// https://tc39.github.io/ecma262/#sec-requireobjectcoercible
var requireObjectCoercible = function (it) {
  if (it == undefined) throw TypeError("Can't call method on " + it);
  return it;
};var toIndexedObject = function (it) {
  return indexedObject(requireObjectCoercible(it));
};var hasOwnProperty = {}.hasOwnProperty;

var has = function (it, key) {
  return hasOwnProperty.call(it, key);
};var nativeGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor; // `Object.getOwnPropertyDescriptor` method
// https://tc39.github.io/ecma262/#sec-object.getownpropertydescriptor

var f$2 = descriptors ? nativeGetOwnPropertyDescriptor : function getOwnPropertyDescriptor(O, P) {
  O = toIndexedObject(O);
  P = toPrimitive(P, true);
  if (ie8DomDefine) try {
    return nativeGetOwnPropertyDescriptor(O, P);
  } catch (error) {
    /* empty */
  }
  if (has(O, P)) return createPropertyDescriptor(!objectPropertyIsEnumerable.f.call(O, P), O[P]);
};
var objectGetOwnPropertyDescriptor = {
  f: f$2
};var createNonEnumerableProperty = descriptors ? function (object, key, value) {
  return objectDefineProperty.f(object, key, createPropertyDescriptor(1, value));
} : function (object, key, value) {
  object[key] = value;
  return object;
};var setGlobal = function (key, value) {
  try {
    createNonEnumerableProperty(global_1, key, value);
  } catch (error) {
    global_1[key] = value;
  }

  return value;
};var SHARED = '__core-js_shared__';
var store = global_1[SHARED] || setGlobal(SHARED, {});
var sharedStore = store;var functionToString = Function.toString; // this helper broken in `3.4.1-3.4.4`, so we can't use `shared` helper

if (typeof sharedStore.inspectSource != 'function') {
  sharedStore.inspectSource = function (it) {
    return functionToString.call(it);
  };
}

var inspectSource = sharedStore.inspectSource;var WeakMap$1 = global_1.WeakMap;
var nativeWeakMap = typeof WeakMap$1 === 'function' && /native code/.test(inspectSource(WeakMap$1));var isPure = false;var shared = createCommonjsModule(function (module) {
  (module.exports = function (key, value) {
    return sharedStore[key] || (sharedStore[key] = value !== undefined ? value : {});
  })('versions', []).push({
    version: '3.6.5',
    mode:  'global',
    copyright: '© 2020 Denis Pushkarev (zloirock.ru)'
  });
});var id = 0;
var postfix = Math.random();

var uid = function (key) {
  return 'Symbol(' + String(key === undefined ? '' : key) + ')_' + (++id + postfix).toString(36);
};var keys = shared('keys');

var sharedKey = function (key) {
  return keys[key] || (keys[key] = uid(key));
};var hiddenKeys = {};var WeakMap$2 = global_1.WeakMap;
var set, get, has$1;

var enforce = function (it) {
  return has$1(it) ? get(it) : set(it, {});
};

var getterFor = function (TYPE) {
  return function (it) {
    var state;

    if (!isObject(it) || (state = get(it)).type !== TYPE) {
      throw TypeError('Incompatible receiver, ' + TYPE + ' required');
    }

    return state;
  };
};

if (nativeWeakMap) {
  var store$1 = new WeakMap$2();
  var wmget = store$1.get;
  var wmhas = store$1.has;
  var wmset = store$1.set;

  set = function (it, metadata) {
    wmset.call(store$1, it, metadata);
    return metadata;
  };

  get = function (it) {
    return wmget.call(store$1, it) || {};
  };

  has$1 = function (it) {
    return wmhas.call(store$1, it);
  };
} else {
  var STATE = sharedKey('state');
  hiddenKeys[STATE] = true;

  set = function (it, metadata) {
    createNonEnumerableProperty(it, STATE, metadata);
    return metadata;
  };

  get = function (it) {
    return has(it, STATE) ? it[STATE] : {};
  };

  has$1 = function (it) {
    return has(it, STATE);
  };
}

var internalState = {
  set: set,
  get: get,
  has: has$1,
  enforce: enforce,
  getterFor: getterFor
};var redefine = createCommonjsModule(function (module) {
  var getInternalState = internalState.get;
  var enforceInternalState = internalState.enforce;
  var TEMPLATE = String(String).split('String');
  (module.exports = function (O, key, value, options) {
    var unsafe = options ? !!options.unsafe : false;
    var simple = options ? !!options.enumerable : false;
    var noTargetGet = options ? !!options.noTargetGet : false;

    if (typeof value == 'function') {
      if (typeof key == 'string' && !has(value, 'name')) createNonEnumerableProperty(value, 'name', key);
      enforceInternalState(value).source = TEMPLATE.join(typeof key == 'string' ? key : '');
    }

    if (O === global_1) {
      if (simple) O[key] = value;else setGlobal(key, value);
      return;
    } else if (!unsafe) {
      delete O[key];
    } else if (!noTargetGet && O[key]) {
      simple = true;
    }

    if (simple) O[key] = value;else createNonEnumerableProperty(O, key, value); // add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative
  })(Function.prototype, 'toString', function toString() {
    return typeof this == 'function' && getInternalState(this).source || inspectSource(this);
  });
});var path = global_1;var aFunction = function (variable) {
  return typeof variable == 'function' ? variable : undefined;
};

var getBuiltIn = function (namespace, method) {
  return arguments.length < 2 ? aFunction(path[namespace]) || aFunction(global_1[namespace]) : path[namespace] && path[namespace][method] || global_1[namespace] && global_1[namespace][method];
};var ceil = Math.ceil;
var floor = Math.floor; // `ToInteger` abstract operation
// https://tc39.github.io/ecma262/#sec-tointeger

var toInteger = function (argument) {
  return isNaN(argument = +argument) ? 0 : (argument > 0 ? floor : ceil)(argument);
};var min = Math.min; // `ToLength` abstract operation
// https://tc39.github.io/ecma262/#sec-tolength

var toLength = function (argument) {
  return argument > 0 ? min(toInteger(argument), 0x1FFFFFFFFFFFFF) : 0; // 2 ** 53 - 1 == 9007199254740991
};var max = Math.max;
var min$1 = Math.min; // Helper for a popular repeating case of the spec:
// Let integer be ? ToInteger(index).
// If integer < 0, let result be max((length + integer), 0); else let result be min(integer, length).

var toAbsoluteIndex = function (index, length) {
  var integer = toInteger(index);
  return integer < 0 ? max(integer + length, 0) : min$1(integer, length);
};var createMethod = function (IS_INCLUDES) {
  return function ($this, el, fromIndex) {
    var O = toIndexedObject($this);
    var length = toLength(O.length);
    var index = toAbsoluteIndex(fromIndex, length);
    var value; // Array#includes uses SameValueZero equality algorithm
    // eslint-disable-next-line no-self-compare

    if (IS_INCLUDES && el != el) while (length > index) {
      value = O[index++]; // eslint-disable-next-line no-self-compare

      if (value != value) return true; // Array#indexOf ignores holes, Array#includes - not
    } else for (; length > index; index++) {
      if ((IS_INCLUDES || index in O) && O[index] === el) return IS_INCLUDES || index || 0;
    }
    return !IS_INCLUDES && -1;
  };
};

var arrayIncludes = {
  // `Array.prototype.includes` method
  // https://tc39.github.io/ecma262/#sec-array.prototype.includes
  includes: createMethod(true),
  // `Array.prototype.indexOf` method
  // https://tc39.github.io/ecma262/#sec-array.prototype.indexof
  indexOf: createMethod(false)
};var indexOf = arrayIncludes.indexOf;

var objectKeysInternal = function (object, names) {
  var O = toIndexedObject(object);
  var i = 0;
  var result = [];
  var key;

  for (key in O) !has(hiddenKeys, key) && has(O, key) && result.push(key); // Don't enum bug & hidden keys


  while (names.length > i) if (has(O, key = names[i++])) {
    ~indexOf(result, key) || result.push(key);
  }

  return result;
};// IE8- don't enum bug keys
var enumBugKeys = ['constructor', 'hasOwnProperty', 'isPrototypeOf', 'propertyIsEnumerable', 'toLocaleString', 'toString', 'valueOf'];var hiddenKeys$1 = enumBugKeys.concat('length', 'prototype'); // `Object.getOwnPropertyNames` method
// https://tc39.github.io/ecma262/#sec-object.getownpropertynames

var f$3 = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
  return objectKeysInternal(O, hiddenKeys$1);
};

var objectGetOwnPropertyNames = {
  f: f$3
};var f$4 = Object.getOwnPropertySymbols;
var objectGetOwnPropertySymbols = {
  f: f$4
};var ownKeys = getBuiltIn('Reflect', 'ownKeys') || function ownKeys(it) {
  var keys = objectGetOwnPropertyNames.f(anObject(it));
  var getOwnPropertySymbols = objectGetOwnPropertySymbols.f;
  return getOwnPropertySymbols ? keys.concat(getOwnPropertySymbols(it)) : keys;
};var copyConstructorProperties = function (target, source) {
  var keys = ownKeys(source);
  var defineProperty = objectDefineProperty.f;
  var getOwnPropertyDescriptor = objectGetOwnPropertyDescriptor.f;

  for (var i = 0; i < keys.length; i++) {
    var key = keys[i];
    if (!has(target, key)) defineProperty(target, key, getOwnPropertyDescriptor(source, key));
  }
};var replacement = /#|\.prototype\./;

var isForced = function (feature, detection) {
  var value = data[normalize(feature)];
  return value == POLYFILL ? true : value == NATIVE ? false : typeof detection == 'function' ? fails(detection) : !!detection;
};

var normalize = isForced.normalize = function (string) {
  return String(string).replace(replacement, '.').toLowerCase();
};

var data = isForced.data = {};
var NATIVE = isForced.NATIVE = 'N';
var POLYFILL = isForced.POLYFILL = 'P';
var isForced_1 = isForced;var getOwnPropertyDescriptor$1 = objectGetOwnPropertyDescriptor.f;
/*
  options.target      - name of the target object
  options.global      - target is the global object
  options.stat        - export as static methods of target
  options.proto       - export as prototype methods of target
  options.real        - real prototype method for the `pure` version
  options.forced      - export even if the native feature is available
  options.bind        - bind methods to the target, required for the `pure` version
  options.wrap        - wrap constructors to preventing global pollution, required for the `pure` version
  options.unsafe      - use the simple assignment of property instead of delete + defineProperty
  options.sham        - add a flag to not completely full polyfills
  options.enumerable  - export as enumerable property
  options.noTargetGet - prevent calling a getter on target
*/

var _export = function (options, source) {
  var TARGET = options.target;
  var GLOBAL = options.global;
  var STATIC = options.stat;
  var FORCED, target, key, targetProperty, sourceProperty, descriptor;

  if (GLOBAL) {
    target = global_1;
  } else if (STATIC) {
    target = global_1[TARGET] || setGlobal(TARGET, {});
  } else {
    target = (global_1[TARGET] || {}).prototype;
  }

  if (target) for (key in source) {
    sourceProperty = source[key];

    if (options.noTargetGet) {
      descriptor = getOwnPropertyDescriptor$1(target, key);
      targetProperty = descriptor && descriptor.value;
    } else targetProperty = target[key];

    FORCED = isForced_1(GLOBAL ? key : TARGET + (STATIC ? '.' : '#') + key, options.forced); // contained in target

    if (!FORCED && targetProperty !== undefined) {
      if (typeof sourceProperty === typeof targetProperty) continue;
      copyConstructorProperties(sourceProperty, targetProperty);
    } // add a flag to not completely full polyfills


    if (options.sham || targetProperty && targetProperty.sham) {
      createNonEnumerableProperty(sourceProperty, 'sham', true);
    } // extend global


    redefine(target, key, sourceProperty, options);
  }
};var nativeSymbol = !!Object.getOwnPropertySymbols && !fails(function () {
  // Chrome 38 Symbol has incorrect toString conversion
  // eslint-disable-next-line no-undef
  return !String(Symbol());
});var useSymbolAsUid = nativeSymbol // eslint-disable-next-line no-undef
&& !Symbol.sham // eslint-disable-next-line no-undef
&& typeof Symbol.iterator == 'symbol';// https://tc39.github.io/ecma262/#sec-isarray

var isArray = Array.isArray || function isArray(arg) {
  return classofRaw(arg) == 'Array';
};// https://tc39.github.io/ecma262/#sec-toobject

var toObject = function (argument) {
  return Object(requireObjectCoercible(argument));
};// https://tc39.github.io/ecma262/#sec-object.keys

var objectKeys = Object.keys || function keys(O) {
  return objectKeysInternal(O, enumBugKeys);
};// https://tc39.github.io/ecma262/#sec-object.defineproperties

var objectDefineProperties = descriptors ? Object.defineProperties : function defineProperties(O, Properties) {
  anObject(O);
  var keys = objectKeys(Properties);
  var length = keys.length;
  var index = 0;
  var key;

  while (length > index) objectDefineProperty.f(O, key = keys[index++], Properties[key]);

  return O;
};var html = getBuiltIn('document', 'documentElement');var GT = '>';
var LT = '<';
var PROTOTYPE = 'prototype';
var SCRIPT = 'script';
var IE_PROTO = sharedKey('IE_PROTO');

var EmptyConstructor = function () {
  /* empty */
};

var scriptTag = function (content) {
  return LT + SCRIPT + GT + content + LT + '/' + SCRIPT + GT;
}; // Create object with fake `null` prototype: use ActiveX Object with cleared prototype


var NullProtoObjectViaActiveX = function (activeXDocument) {
  activeXDocument.write(scriptTag(''));
  activeXDocument.close();
  var temp = activeXDocument.parentWindow.Object;
  activeXDocument = null; // avoid memory leak

  return temp;
}; // Create object with fake `null` prototype: use iframe Object with cleared prototype


var NullProtoObjectViaIFrame = function () {
  // Thrash, waste and sodomy: IE GC bug
  var iframe = documentCreateElement('iframe');
  var JS = 'java' + SCRIPT + ':';
  var iframeDocument;
  iframe.style.display = 'none';
  html.appendChild(iframe); // https://github.com/zloirock/core-js/issues/475

  iframe.src = String(JS);
  iframeDocument = iframe.contentWindow.document;
  iframeDocument.open();
  iframeDocument.write(scriptTag('document.F=Object'));
  iframeDocument.close();
  return iframeDocument.F;
}; // Check for document.domain and active x support
// No need to use active x approach when document.domain is not set
// see https://github.com/es-shims/es5-shim/issues/150
// variation of https://github.com/kitcambridge/es5-shim/commit/4f738ac066346
// avoid IE GC bug


var activeXDocument;

var NullProtoObject = function () {
  try {
    /* global ActiveXObject */
    activeXDocument = document.domain && new ActiveXObject('htmlfile');
  } catch (error) {
    /* ignore */
  }

  NullProtoObject = activeXDocument ? NullProtoObjectViaActiveX(activeXDocument) : NullProtoObjectViaIFrame();
  var length = enumBugKeys.length;

  while (length--) delete NullProtoObject[PROTOTYPE][enumBugKeys[length]];

  return NullProtoObject();
};

hiddenKeys[IE_PROTO] = true; // `Object.create` method
// https://tc39.github.io/ecma262/#sec-object.create

var objectCreate = Object.create || function create(O, Properties) {
  var result;

  if (O !== null) {
    EmptyConstructor[PROTOTYPE] = anObject(O);
    result = new EmptyConstructor();
    EmptyConstructor[PROTOTYPE] = null; // add "__proto__" for Object.getPrototypeOf polyfill

    result[IE_PROTO] = O;
  } else result = NullProtoObject();

  return Properties === undefined ? result : objectDefineProperties(result, Properties);
};var nativeGetOwnPropertyNames = objectGetOwnPropertyNames.f;
var toString$1 = {}.toString;
var windowNames = typeof window == 'object' && window && Object.getOwnPropertyNames ? Object.getOwnPropertyNames(window) : [];

var getWindowNames = function (it) {
  try {
    return nativeGetOwnPropertyNames(it);
  } catch (error) {
    return windowNames.slice();
  }
}; // fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window


var f$5 = function getOwnPropertyNames(it) {
  return windowNames && toString$1.call(it) == '[object Window]' ? getWindowNames(it) : nativeGetOwnPropertyNames(toIndexedObject(it));
};

var objectGetOwnPropertyNamesExternal = {
  f: f$5
};var WellKnownSymbolsStore = shared('wks');
var Symbol$1 = global_1.Symbol;
var createWellKnownSymbol = useSymbolAsUid ? Symbol$1 : Symbol$1 && Symbol$1.withoutSetter || uid;

var wellKnownSymbol = function (name) {
  if (!has(WellKnownSymbolsStore, name)) {
    if (nativeSymbol && has(Symbol$1, name)) WellKnownSymbolsStore[name] = Symbol$1[name];else WellKnownSymbolsStore[name] = createWellKnownSymbol('Symbol.' + name);
  }

  return WellKnownSymbolsStore[name];
};var f$6 = wellKnownSymbol;
var wellKnownSymbolWrapped = {
  f: f$6
};var defineProperty$1 = objectDefineProperty.f;

var defineWellKnownSymbol = function (NAME) {
  var Symbol = path.Symbol || (path.Symbol = {});
  if (!has(Symbol, NAME)) defineProperty$1(Symbol, NAME, {
    value: wellKnownSymbolWrapped.f(NAME)
  });
};var defineProperty$2 = objectDefineProperty.f;
var TO_STRING_TAG = wellKnownSymbol('toStringTag');

var setToStringTag = function (it, TAG, STATIC) {
  if (it && !has(it = STATIC ? it : it.prototype, TO_STRING_TAG)) {
    defineProperty$2(it, TO_STRING_TAG, {
      configurable: true,
      value: TAG
    });
  }
};var aFunction$1 = function (it) {
  if (typeof it != 'function') {
    throw TypeError(String(it) + ' is not a function');
  }

  return it;
};var functionBindContext = function (fn, that, length) {
  aFunction$1(fn);
  if (that === undefined) return fn;

  switch (length) {
    case 0:
      return function () {
        return fn.call(that);
      };

    case 1:
      return function (a) {
        return fn.call(that, a);
      };

    case 2:
      return function (a, b) {
        return fn.call(that, a, b);
      };

    case 3:
      return function (a, b, c) {
        return fn.call(that, a, b, c);
      };
  }

  return function ()
  /* ...args */
  {
    return fn.apply(that, arguments);
  };
};var SPECIES = wellKnownSymbol('species'); // `ArraySpeciesCreate` abstract operation
// https://tc39.github.io/ecma262/#sec-arrayspeciescreate

var arraySpeciesCreate = function (originalArray, length) {
  var C;

  if (isArray(originalArray)) {
    C = originalArray.constructor; // cross-realm fallback

    if (typeof C == 'function' && (C === Array || isArray(C.prototype))) C = undefined;else if (isObject(C)) {
      C = C[SPECIES];
      if (C === null) C = undefined;
    }
  }

  return new (C === undefined ? Array : C)(length === 0 ? 0 : length);
};var push = [].push; // `Array.prototype.{ forEach, map, filter, some, every, find, findIndex }` methods implementation

var createMethod$1 = function (TYPE) {
  var IS_MAP = TYPE == 1;
  var IS_FILTER = TYPE == 2;
  var IS_SOME = TYPE == 3;
  var IS_EVERY = TYPE == 4;
  var IS_FIND_INDEX = TYPE == 6;
  var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;
  return function ($this, callbackfn, that, specificCreate) {
    var O = toObject($this);
    var self = indexedObject(O);
    var boundFunction = functionBindContext(callbackfn, that, 3);
    var length = toLength(self.length);
    var index = 0;
    var create = specificCreate || arraySpeciesCreate;
    var target = IS_MAP ? create($this, length) : IS_FILTER ? create($this, 0) : undefined;
    var value, result;

    for (; length > index; index++) if (NO_HOLES || index in self) {
      value = self[index];
      result = boundFunction(value, index, O);

      if (TYPE) {
        if (IS_MAP) target[index] = result; // map
        else if (result) switch (TYPE) {
            case 3:
              return true;
            // some

            case 5:
              return value;
            // find

            case 6:
              return index;
            // findIndex

            case 2:
              push.call(target, value);
            // filter
          } else if (IS_EVERY) return false; // every
      }
    }

    return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : target;
  };
};

var arrayIteration = {
  // `Array.prototype.forEach` method
  // https://tc39.github.io/ecma262/#sec-array.prototype.foreach
  forEach: createMethod$1(0),
  // `Array.prototype.map` method
  // https://tc39.github.io/ecma262/#sec-array.prototype.map
  map: createMethod$1(1),
  // `Array.prototype.filter` method
  // https://tc39.github.io/ecma262/#sec-array.prototype.filter
  filter: createMethod$1(2),
  // `Array.prototype.some` method
  // https://tc39.github.io/ecma262/#sec-array.prototype.some
  some: createMethod$1(3),
  // `Array.prototype.every` method
  // https://tc39.github.io/ecma262/#sec-array.prototype.every
  every: createMethod$1(4),
  // `Array.prototype.find` method
  // https://tc39.github.io/ecma262/#sec-array.prototype.find
  find: createMethod$1(5),
  // `Array.prototype.findIndex` method
  // https://tc39.github.io/ecma262/#sec-array.prototype.findIndex
  findIndex: createMethod$1(6)
};var $forEach = arrayIteration.forEach;
var HIDDEN = sharedKey('hidden');
var SYMBOL = 'Symbol';
var PROTOTYPE$1 = 'prototype';
var TO_PRIMITIVE = wellKnownSymbol('toPrimitive');
var setInternalState = internalState.set;
var getInternalState = internalState.getterFor(SYMBOL);
var ObjectPrototype = Object[PROTOTYPE$1];
var $Symbol = global_1.Symbol;
var $stringify = getBuiltIn('JSON', 'stringify');
var nativeGetOwnPropertyDescriptor$1 = objectGetOwnPropertyDescriptor.f;
var nativeDefineProperty$1 = objectDefineProperty.f;
var nativeGetOwnPropertyNames$1 = objectGetOwnPropertyNamesExternal.f;
var nativePropertyIsEnumerable$1 = objectPropertyIsEnumerable.f;
var AllSymbols = shared('symbols');
var ObjectPrototypeSymbols = shared('op-symbols');
var StringToSymbolRegistry = shared('string-to-symbol-registry');
var SymbolToStringRegistry = shared('symbol-to-string-registry');
var WellKnownSymbolsStore$1 = shared('wks');
var QObject = global_1.QObject; // Don't use setters in Qt Script, https://github.com/zloirock/core-js/issues/173

var USE_SETTER = !QObject || !QObject[PROTOTYPE$1] || !QObject[PROTOTYPE$1].findChild; // fallback for old Android, https://code.google.com/p/v8/issues/detail?id=687

var setSymbolDescriptor = descriptors && fails(function () {
  return objectCreate(nativeDefineProperty$1({}, 'a', {
    get: function () {
      return nativeDefineProperty$1(this, 'a', {
        value: 7
      }).a;
    }
  })).a != 7;
}) ? function (O, P, Attributes) {
  var ObjectPrototypeDescriptor = nativeGetOwnPropertyDescriptor$1(ObjectPrototype, P);
  if (ObjectPrototypeDescriptor) delete ObjectPrototype[P];
  nativeDefineProperty$1(O, P, Attributes);

  if (ObjectPrototypeDescriptor && O !== ObjectPrototype) {
    nativeDefineProperty$1(ObjectPrototype, P, ObjectPrototypeDescriptor);
  }
} : nativeDefineProperty$1;

var wrap = function (tag, description) {
  var symbol = AllSymbols[tag] = objectCreate($Symbol[PROTOTYPE$1]);
  setInternalState(symbol, {
    type: SYMBOL,
    tag: tag,
    description: description
  });
  if (!descriptors) symbol.description = description;
  return symbol;
};

var isSymbol = useSymbolAsUid ? function (it) {
  return typeof it == 'symbol';
} : function (it) {
  return Object(it) instanceof $Symbol;
};

var $defineProperty = function defineProperty(O, P, Attributes) {
  if (O === ObjectPrototype) $defineProperty(ObjectPrototypeSymbols, P, Attributes);
  anObject(O);
  var key = toPrimitive(P, true);
  anObject(Attributes);

  if (has(AllSymbols, key)) {
    if (!Attributes.enumerable) {
      if (!has(O, HIDDEN)) nativeDefineProperty$1(O, HIDDEN, createPropertyDescriptor(1, {}));
      O[HIDDEN][key] = true;
    } else {
      if (has(O, HIDDEN) && O[HIDDEN][key]) O[HIDDEN][key] = false;
      Attributes = objectCreate(Attributes, {
        enumerable: createPropertyDescriptor(0, false)
      });
    }

    return setSymbolDescriptor(O, key, Attributes);
  }

  return nativeDefineProperty$1(O, key, Attributes);
};

var $defineProperties = function defineProperties(O, Properties) {
  anObject(O);
  var properties = toIndexedObject(Properties);
  var keys = objectKeys(properties).concat($getOwnPropertySymbols(properties));
  $forEach(keys, function (key) {
    if (!descriptors || $propertyIsEnumerable.call(properties, key)) $defineProperty(O, key, properties[key]);
  });
  return O;
};

var $create = function create(O, Properties) {
  return Properties === undefined ? objectCreate(O) : $defineProperties(objectCreate(O), Properties);
};

var $propertyIsEnumerable = function propertyIsEnumerable(V) {
  var P = toPrimitive(V, true);
  var enumerable = nativePropertyIsEnumerable$1.call(this, P);
  if (this === ObjectPrototype && has(AllSymbols, P) && !has(ObjectPrototypeSymbols, P)) return false;
  return enumerable || !has(this, P) || !has(AllSymbols, P) || has(this, HIDDEN) && this[HIDDEN][P] ? enumerable : true;
};

var $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(O, P) {
  var it = toIndexedObject(O);
  var key = toPrimitive(P, true);
  if (it === ObjectPrototype && has(AllSymbols, key) && !has(ObjectPrototypeSymbols, key)) return;
  var descriptor = nativeGetOwnPropertyDescriptor$1(it, key);

  if (descriptor && has(AllSymbols, key) && !(has(it, HIDDEN) && it[HIDDEN][key])) {
    descriptor.enumerable = true;
  }

  return descriptor;
};

var $getOwnPropertyNames = function getOwnPropertyNames(O) {
  var names = nativeGetOwnPropertyNames$1(toIndexedObject(O));
  var result = [];
  $forEach(names, function (key) {
    if (!has(AllSymbols, key) && !has(hiddenKeys, key)) result.push(key);
  });
  return result;
};

var $getOwnPropertySymbols = function getOwnPropertySymbols(O) {
  var IS_OBJECT_PROTOTYPE = O === ObjectPrototype;
  var names = nativeGetOwnPropertyNames$1(IS_OBJECT_PROTOTYPE ? ObjectPrototypeSymbols : toIndexedObject(O));
  var result = [];
  $forEach(names, function (key) {
    if (has(AllSymbols, key) && (!IS_OBJECT_PROTOTYPE || has(ObjectPrototype, key))) {
      result.push(AllSymbols[key]);
    }
  });
  return result;
}; // `Symbol` constructor
// https://tc39.github.io/ecma262/#sec-symbol-constructor


if (!nativeSymbol) {
  $Symbol = function Symbol() {
    if (this instanceof $Symbol) throw TypeError('Symbol is not a constructor');
    var description = !arguments.length || arguments[0] === undefined ? undefined : String(arguments[0]);
    var tag = uid(description);

    var setter = function (value) {
      if (this === ObjectPrototype) setter.call(ObjectPrototypeSymbols, value);
      if (has(this, HIDDEN) && has(this[HIDDEN], tag)) this[HIDDEN][tag] = false;
      setSymbolDescriptor(this, tag, createPropertyDescriptor(1, value));
    };

    if (descriptors && USE_SETTER) setSymbolDescriptor(ObjectPrototype, tag, {
      configurable: true,
      set: setter
    });
    return wrap(tag, description);
  };

  redefine($Symbol[PROTOTYPE$1], 'toString', function toString() {
    return getInternalState(this).tag;
  });
  redefine($Symbol, 'withoutSetter', function (description) {
    return wrap(uid(description), description);
  });
  objectPropertyIsEnumerable.f = $propertyIsEnumerable;
  objectDefineProperty.f = $defineProperty;
  objectGetOwnPropertyDescriptor.f = $getOwnPropertyDescriptor;
  objectGetOwnPropertyNames.f = objectGetOwnPropertyNamesExternal.f = $getOwnPropertyNames;
  objectGetOwnPropertySymbols.f = $getOwnPropertySymbols;

  wellKnownSymbolWrapped.f = function (name) {
    return wrap(wellKnownSymbol(name), name);
  };

  if (descriptors) {
    // https://github.com/tc39/proposal-Symbol-description
    nativeDefineProperty$1($Symbol[PROTOTYPE$1], 'description', {
      configurable: true,
      get: function description() {
        return getInternalState(this).description;
      }
    });

    {
      redefine(ObjectPrototype, 'propertyIsEnumerable', $propertyIsEnumerable, {
        unsafe: true
      });
    }
  }
}

_export({
  global: true,
  wrap: true,
  forced: !nativeSymbol,
  sham: !nativeSymbol
}, {
  Symbol: $Symbol
});
$forEach(objectKeys(WellKnownSymbolsStore$1), function (name) {
  defineWellKnownSymbol(name);
});
_export({
  target: SYMBOL,
  stat: true,
  forced: !nativeSymbol
}, {
  // `Symbol.for` method
  // https://tc39.github.io/ecma262/#sec-symbol.for
  'for': function (key) {
    var string = String(key);
    if (has(StringToSymbolRegistry, string)) return StringToSymbolRegistry[string];
    var symbol = $Symbol(string);
    StringToSymbolRegistry[string] = symbol;
    SymbolToStringRegistry[symbol] = string;
    return symbol;
  },
  // `Symbol.keyFor` method
  // https://tc39.github.io/ecma262/#sec-symbol.keyfor
  keyFor: function keyFor(sym) {
    if (!isSymbol(sym)) throw TypeError(sym + ' is not a symbol');
    if (has(SymbolToStringRegistry, sym)) return SymbolToStringRegistry[sym];
  },
  useSetter: function () {
    USE_SETTER = true;
  },
  useSimple: function () {
    USE_SETTER = false;
  }
});
_export({
  target: 'Object',
  stat: true,
  forced: !nativeSymbol,
  sham: !descriptors
}, {
  // `Object.create` method
  // https://tc39.github.io/ecma262/#sec-object.create
  create: $create,
  // `Object.defineProperty` method
  // https://tc39.github.io/ecma262/#sec-object.defineproperty
  defineProperty: $defineProperty,
  // `Object.defineProperties` method
  // https://tc39.github.io/ecma262/#sec-object.defineproperties
  defineProperties: $defineProperties,
  // `Object.getOwnPropertyDescriptor` method
  // https://tc39.github.io/ecma262/#sec-object.getownpropertydescriptors
  getOwnPropertyDescriptor: $getOwnPropertyDescriptor
});
_export({
  target: 'Object',
  stat: true,
  forced: !nativeSymbol
}, {
  // `Object.getOwnPropertyNames` method
  // https://tc39.github.io/ecma262/#sec-object.getownpropertynames
  getOwnPropertyNames: $getOwnPropertyNames,
  // `Object.getOwnPropertySymbols` method
  // https://tc39.github.io/ecma262/#sec-object.getownpropertysymbols
  getOwnPropertySymbols: $getOwnPropertySymbols
}); // Chrome 38 and 39 `Object.getOwnPropertySymbols` fails on primitives
// https://bugs.chromium.org/p/v8/issues/detail?id=3443

_export({
  target: 'Object',
  stat: true,
  forced: fails(function () {
    objectGetOwnPropertySymbols.f(1);
  })
}, {
  getOwnPropertySymbols: function getOwnPropertySymbols(it) {
    return objectGetOwnPropertySymbols.f(toObject(it));
  }
}); // `JSON.stringify` method behavior with symbols
// https://tc39.github.io/ecma262/#sec-json.stringify

if ($stringify) {
  var FORCED_JSON_STRINGIFY = !nativeSymbol || fails(function () {
    var symbol = $Symbol(); // MS Edge converts symbol values to JSON as {}

    return $stringify([symbol]) != '[null]' // WebKit converts symbol values to JSON as null
    || $stringify({
      a: symbol
    }) != '{}' // V8 throws on boxed symbols
    || $stringify(Object(symbol)) != '{}';
  });
  _export({
    target: 'JSON',
    stat: true,
    forced: FORCED_JSON_STRINGIFY
  }, {
    // eslint-disable-next-line no-unused-vars
    stringify: function stringify(it, replacer, space) {
      var args = [it];
      var index = 1;
      var $replacer;

      while (arguments.length > index) args.push(arguments[index++]);

      $replacer = replacer;
      if (!isObject(replacer) && it === undefined || isSymbol(it)) return; // IE8 returns string on undefined

      if (!isArray(replacer)) replacer = function (key, value) {
        if (typeof $replacer == 'function') value = $replacer.call(this, key, value);
        if (!isSymbol(value)) return value;
      };
      args[1] = replacer;
      return $stringify.apply(null, args);
    }
  });
} // `Symbol.prototype[@@toPrimitive]` method
// https://tc39.github.io/ecma262/#sec-symbol.prototype-@@toprimitive


if (!$Symbol[PROTOTYPE$1][TO_PRIMITIVE]) {
  createNonEnumerableProperty($Symbol[PROTOTYPE$1], TO_PRIMITIVE, $Symbol[PROTOTYPE$1].valueOf);
} // `Symbol.prototype[@@toStringTag]` property
// https://tc39.github.io/ecma262/#sec-symbol.prototype-@@tostringtag


setToStringTag($Symbol, SYMBOL);
hiddenKeys[HIDDEN] = true;var engineUserAgent = getBuiltIn('navigator', 'userAgent') || '';var process = global_1.process;
var versions = process && process.versions;
var v8 = versions && versions.v8;
var match, version;

if (v8) {
  match = v8.split('.');
  version = match[0] + match[1];
} else if (engineUserAgent) {
  match = engineUserAgent.match(/Edge\/(\d+)/);

  if (!match || match[1] >= 74) {
    match = engineUserAgent.match(/Chrome\/(\d+)/);
    if (match) version = match[1];
  }
}

var engineV8Version = version && +version;var SPECIES$1 = wellKnownSymbol('species');

var arrayMethodHasSpeciesSupport = function (METHOD_NAME) {
  // We can't use this feature detection in V8 since it causes
  // deoptimization and serious performance degradation
  // https://github.com/zloirock/core-js/issues/677
  return engineV8Version >= 51 || !fails(function () {
    var array = [];
    var constructor = array.constructor = {};

    constructor[SPECIES$1] = function () {
      return {
        foo: 1
      };
    };

    return array[METHOD_NAME](Boolean).foo !== 1;
  });
};var defineProperty$3 = Object.defineProperty;
var cache = {};

var thrower = function (it) {
  throw it;
};

var arrayMethodUsesToLength = function (METHOD_NAME, options) {
  if (has(cache, METHOD_NAME)) return cache[METHOD_NAME];
  if (!options) options = {};
  var method = [][METHOD_NAME];
  var ACCESSORS = has(options, 'ACCESSORS') ? options.ACCESSORS : false;
  var argument0 = has(options, 0) ? options[0] : thrower;
  var argument1 = has(options, 1) ? options[1] : undefined;
  return cache[METHOD_NAME] = !!method && !fails(function () {
    if (ACCESSORS && !descriptors) return true;
    var O = {
      length: -1
    };
    if (ACCESSORS) defineProperty$3(O, 1, {
      enumerable: true,
      get: thrower
    });else O[1] = 1;
    method.call(O, argument0, argument1);
  });
};var $filter = arrayIteration.filter;
var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('filter'); // Edge 14- issue

var USES_TO_LENGTH = arrayMethodUsesToLength('filter'); // `Array.prototype.filter` method
// https://tc39.github.io/ecma262/#sec-array.prototype.filter
// with adding support of @@species

_export({
  target: 'Array',
  proto: true,
  forced: !HAS_SPECIES_SUPPORT || !USES_TO_LENGTH
}, {
  filter: function filter(callbackfn
  /* , thisArg */
  ) {
    return $filter(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  }
});var arrayMethodIsStrict = function (METHOD_NAME, argument) {
  var method = [][METHOD_NAME];
  return !!method && fails(function () {
    // eslint-disable-next-line no-useless-call,no-throw-literal
    method.call(null, argument || function () {
      throw 1;
    }, 1);
  });
};var $forEach$1 = arrayIteration.forEach;
var STRICT_METHOD = arrayMethodIsStrict('forEach');
var USES_TO_LENGTH$1 = arrayMethodUsesToLength('forEach'); // `Array.prototype.forEach` method implementation
// https://tc39.github.io/ecma262/#sec-array.prototype.foreach

var arrayForEach = !STRICT_METHOD || !USES_TO_LENGTH$1 ? function forEach(callbackfn
/* , thisArg */
) {
  return $forEach$1(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
} : [].forEach;// https://tc39.github.io/ecma262/#sec-array.prototype.foreach


_export({
  target: 'Array',
  proto: true,
  forced: [].forEach != arrayForEach
}, {
  forEach: arrayForEach
});var nativeGetOwnPropertyDescriptor$2 = objectGetOwnPropertyDescriptor.f;
var FAILS_ON_PRIMITIVES = fails(function () {
  nativeGetOwnPropertyDescriptor$2(1);
});
var FORCED = !descriptors || FAILS_ON_PRIMITIVES; // `Object.getOwnPropertyDescriptor` method
// https://tc39.github.io/ecma262/#sec-object.getownpropertydescriptor

_export({
  target: 'Object',
  stat: true,
  forced: FORCED,
  sham: !descriptors
}, {
  getOwnPropertyDescriptor: function getOwnPropertyDescriptor(it, key) {
    return nativeGetOwnPropertyDescriptor$2(toIndexedObject(it), key);
  }
});var createProperty = function (object, key, value) {
  var propertyKey = toPrimitive(key);
  if (propertyKey in object) objectDefineProperty.f(object, propertyKey, createPropertyDescriptor(0, value));else object[propertyKey] = value;
};// https://tc39.github.io/ecma262/#sec-object.getownpropertydescriptors

_export({
  target: 'Object',
  stat: true,
  sham: !descriptors
}, {
  getOwnPropertyDescriptors: function getOwnPropertyDescriptors(object) {
    var O = toIndexedObject(object);
    var getOwnPropertyDescriptor = objectGetOwnPropertyDescriptor.f;
    var keys = ownKeys(O);
    var result = {};
    var index = 0;
    var key, descriptor;

    while (keys.length > index) {
      descriptor = getOwnPropertyDescriptor(O, key = keys[index++]);
      if (descriptor !== undefined) createProperty(result, key, descriptor);
    }

    return result;
  }
});var FAILS_ON_PRIMITIVES$1 = fails(function () {
  objectKeys(1);
}); // `Object.keys` method
// https://tc39.github.io/ecma262/#sec-object.keys

_export({
  target: 'Object',
  stat: true,
  forced: FAILS_ON_PRIMITIVES$1
}, {
  keys: function keys(it) {
    return objectKeys(toObject(it));
  }
});// iterable DOM collections
// flag - `iterable` interface - 'entries', 'keys', 'values', 'forEach' methods
var domIterables = {
  CSSRuleList: 0,
  CSSStyleDeclaration: 0,
  CSSValueList: 0,
  ClientRectList: 0,
  DOMRectList: 0,
  DOMStringList: 0,
  DOMTokenList: 1,
  DataTransferItemList: 0,
  FileList: 0,
  HTMLAllCollection: 0,
  HTMLCollection: 0,
  HTMLFormElement: 0,
  HTMLSelectElement: 0,
  MediaList: 0,
  MimeTypeArray: 0,
  NamedNodeMap: 0,
  NodeList: 1,
  PaintRequestList: 0,
  Plugin: 0,
  PluginArray: 0,
  SVGLengthList: 0,
  SVGNumberList: 0,
  SVGPathSegList: 0,
  SVGPointList: 0,
  SVGStringList: 0,
  SVGTransformList: 0,
  SourceBufferList: 0,
  StyleSheetList: 0,
  TextTrackCueList: 0,
  TextTrackList: 0,
  TouchList: 0
};for (var COLLECTION_NAME in domIterables) {
  var Collection = global_1[COLLECTION_NAME];
  var CollectionPrototype = Collection && Collection.prototype; // some Chrome versions have non-configurable methods on DOMTokenList

  if (CollectionPrototype && CollectionPrototype.forEach !== arrayForEach) try {
    createNonEnumerableProperty(CollectionPrototype, 'forEach', arrayForEach);
  } catch (error) {
    CollectionPrototype.forEach = arrayForEach;
  }
}function _defineProperty(obj, key, value) {
  if (key in obj) {
    Object.defineProperty(obj, key, {
      value: value,
      enumerable: true,
      configurable: true,
      writable: true
    });
  } else {
    obj[key] = value;
  }

  return obj;
}function ownKeys$1(object, enumerableOnly) {
  var keys = Object.keys(object);

  if (Object.getOwnPropertySymbols) {
    var symbols = Object.getOwnPropertySymbols(object);
    if (enumerableOnly) symbols = symbols.filter(function (sym) {
      return Object.getOwnPropertyDescriptor(object, sym).enumerable;
    });
    keys.push.apply(keys, symbols);
  }

  return keys;
}

function _objectSpread2(target) {
  for (var i = 1; i < arguments.length; i++) {
    var source = arguments[i] != null ? arguments[i] : {};

    if (i % 2) {
      ownKeys$1(Object(source), true).forEach(function (key) {
        _defineProperty(target, key, source[key]);
      });
    } else if (Object.getOwnPropertyDescriptors) {
      Object.defineProperties(target, Object.getOwnPropertyDescriptors(source));
    } else {
      ownKeys$1(Object(source)).forEach(function (key) {
        Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key));
      });
    }
  }

  return target;
}var defineProperty$4 = objectDefineProperty.f;
var NativeSymbol = global_1.Symbol;

if (descriptors && typeof NativeSymbol == 'function' && (!('description' in NativeSymbol.prototype) || // Safari 12 bug
NativeSymbol().description !== undefined)) {
  var EmptyStringDescriptionStore = {}; // wrap Symbol constructor for correct work with undefined description

  var SymbolWrapper = function Symbol() {
    var description = arguments.length < 1 || arguments[0] === undefined ? undefined : String(arguments[0]);
    var result = this instanceof SymbolWrapper ? new NativeSymbol(description) // in Edge 13, String(Symbol(undefined)) === 'Symbol(undefined)'
    : description === undefined ? NativeSymbol() : NativeSymbol(description);
    if (description === '') EmptyStringDescriptionStore[result] = true;
    return result;
  };

  copyConstructorProperties(SymbolWrapper, NativeSymbol);
  var symbolPrototype = SymbolWrapper.prototype = NativeSymbol.prototype;
  symbolPrototype.constructor = SymbolWrapper;
  var symbolToString = symbolPrototype.toString;
  var native = String(NativeSymbol('test')) == 'Symbol(test)';
  var regexp = /^Symbol\((.*)\)[^)]+$/;
  defineProperty$4(symbolPrototype, 'description', {
    configurable: true,
    get: function description() {
      var symbol = isObject(this) ? this.valueOf() : this;
      var string = symbolToString.call(symbol);
      if (has(EmptyStringDescriptionStore, symbol)) return '';
      var desc = native ? string.slice(7, -1) : string.replace(regexp, '$1');
      return desc === '' ? undefined : desc;
    }
  });
  _export({
    global: true,
    forced: true
  }, {
    Symbol: SymbolWrapper
  });
}// https://tc39.github.io/ecma262/#sec-symbol.iterator

defineWellKnownSymbol('iterator');var IS_CONCAT_SPREADABLE = wellKnownSymbol('isConcatSpreadable');
var MAX_SAFE_INTEGER = 0x1FFFFFFFFFFFFF;
var MAXIMUM_ALLOWED_INDEX_EXCEEDED = 'Maximum allowed index exceeded'; // We can't use this feature detection in V8 since it causes
// deoptimization and serious performance degradation
// https://github.com/zloirock/core-js/issues/679

var IS_CONCAT_SPREADABLE_SUPPORT = engineV8Version >= 51 || !fails(function () {
  var array = [];
  array[IS_CONCAT_SPREADABLE] = false;
  return array.concat()[0] !== array;
});
var SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('concat');

var isConcatSpreadable = function (O) {
  if (!isObject(O)) return false;
  var spreadable = O[IS_CONCAT_SPREADABLE];
  return spreadable !== undefined ? !!spreadable : isArray(O);
};

var FORCED$1 = !IS_CONCAT_SPREADABLE_SUPPORT || !SPECIES_SUPPORT; // `Array.prototype.concat` method
// https://tc39.github.io/ecma262/#sec-array.prototype.concat
// with adding support of @@isConcatSpreadable and @@species

_export({
  target: 'Array',
  proto: true,
  forced: FORCED$1
}, {
  concat: function concat(arg) {
    // eslint-disable-line no-unused-vars
    var O = toObject(this);
    var A = arraySpeciesCreate(O, 0);
    var n = 0;
    var i, k, length, len, E;

    for (i = -1, length = arguments.length; i < length; i++) {
      E = i === -1 ? O : arguments[i];

      if (isConcatSpreadable(E)) {
        len = toLength(E.length);
        if (n + len > MAX_SAFE_INTEGER) throw TypeError(MAXIMUM_ALLOWED_INDEX_EXCEEDED);

        for (k = 0; k < len; k++, n++) if (k in E) createProperty(A, n, E[k]);
      } else {
        if (n >= MAX_SAFE_INTEGER) throw TypeError(MAXIMUM_ALLOWED_INDEX_EXCEEDED);
        createProperty(A, n++, E);
      }
    }

    A.length = n;
    return A;
  }
});var $every = arrayIteration.every;
var STRICT_METHOD$1 = arrayMethodIsStrict('every');
var USES_TO_LENGTH$2 = arrayMethodUsesToLength('every'); // `Array.prototype.every` method
// https://tc39.github.io/ecma262/#sec-array.prototype.every

_export({
  target: 'Array',
  proto: true,
  forced: !STRICT_METHOD$1 || !USES_TO_LENGTH$2
}, {
  every: function every(callbackfn
  /* , thisArg */
  ) {
    return $every(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  }
});var UNSCOPABLES = wellKnownSymbol('unscopables');
var ArrayPrototype = Array.prototype; // Array.prototype[@@unscopables]
// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables

if (ArrayPrototype[UNSCOPABLES] == undefined) {
  objectDefineProperty.f(ArrayPrototype, UNSCOPABLES, {
    configurable: true,
    value: objectCreate(null)
  });
} // add a key to Array.prototype[@@unscopables]


var addToUnscopables = function (key) {
  ArrayPrototype[UNSCOPABLES][key] = true;
};var $find = arrayIteration.find;
var FIND = 'find';
var SKIPS_HOLES = true;
var USES_TO_LENGTH$3 = arrayMethodUsesToLength(FIND); // Shouldn't skip holes

if (FIND in []) Array(1)[FIND](function () {
  SKIPS_HOLES = false;
}); // `Array.prototype.find` method
// https://tc39.github.io/ecma262/#sec-array.prototype.find

_export({
  target: 'Array',
  proto: true,
  forced: SKIPS_HOLES || !USES_TO_LENGTH$3
}, {
  find: function find(callbackfn
  /* , that = undefined */
  ) {
    return $find(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  }
}); // https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables

addToUnscopables(FIND);var $findIndex = arrayIteration.findIndex;
var FIND_INDEX = 'findIndex';
var SKIPS_HOLES$1