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Direktori : /var/www/html/node_modules/core-js-pure/modules/ |
Current File : /var/www/html/node_modules/core-js-pure/modules/esnext.iterator.constructor.js |
'use strict'; // https://github.com/tc39/proposal-iterator-helpers var $ = require('../internals/export'); var global = require('../internals/global'); var anInstance = require('../internals/an-instance'); var isCallable = require('../internals/is-callable'); var createNonEnumerableProperty = require('../internals/create-non-enumerable-property'); var fails = require('../internals/fails'); var hasOwn = require('../internals/has-own-property'); var wellKnownSymbol = require('../internals/well-known-symbol'); var IteratorPrototype = require('../internals/iterators-core').IteratorPrototype; var IS_PURE = require('../internals/is-pure'); var TO_STRING_TAG = wellKnownSymbol('toStringTag'); var NativeIterator = global.Iterator; // FF56- have non-standard global helper `Iterator` var FORCED = IS_PURE || !isCallable(NativeIterator) || NativeIterator.prototype !== IteratorPrototype // FF44- non-standard `Iterator` passes previous tests || !fails(function () { NativeIterator({}); }); var IteratorConstructor = function Iterator() { anInstance(this, IteratorPrototype); }; if (!hasOwn(IteratorPrototype, TO_STRING_TAG)) { createNonEnumerableProperty(IteratorPrototype, TO_STRING_TAG, 'Iterator'); } if (FORCED || !hasOwn(IteratorPrototype, 'constructor') || IteratorPrototype.constructor === Object) { createNonEnumerableProperty(IteratorPrototype, 'constructor', IteratorConstructor); } IteratorConstructor.prototype = IteratorPrototype; $({ global: true, forced: FORCED }, { Iterator: IteratorConstructor });