Diffusion Open Access Compliance Check Tool (OACCT) (master) Browse

rOACCT/node_modules/core-js/modules/esnext.iterator.constructor.js
7a3a991276aamaster

esnext.iterator.constructor.js
View Options

			'use strict';
			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;

			// `Iterator` constructor
			// https://github.com/tc39/proposal-iterator-helpers
			$({ global: true, constructor: true, forced: FORCED }, {
			Iterator: IteratorConstructor
			});