Sha256: 642d8e76934c6fb2982a8d3f3a33f72116e58d770f5f0b0dd2814dec260875e5
Contents?: true
Size: 1.24 KB
Versions: 10
Compression:
Stored size: 1.24 KB
Contents
'use strict';
var getPrototypeOf = require('../internals/object-get-prototype-of');
var hide = require('../internals/hide');
var has = require('../internals/has');
var wellKnownSymbol = require('../internals/well-known-symbol');
var IS_PURE = require('../internals/is-pure');
var ITERATOR = wellKnownSymbol('iterator');
var BUGGY_SAFARI_ITERATORS = false;
var returnThis = function () { return this; };
// `%IteratorPrototype%` object
// https://tc39.github.io/ecma262/#sec-%iteratorprototype%-object
var IteratorPrototype, PrototypeOfArrayIteratorPrototype, arrayIterator;
if ([].keys) {
arrayIterator = [].keys();
// Safari 8 has buggy iterators w/o `next`
if (!('next' in arrayIterator)) BUGGY_SAFARI_ITERATORS = true;
else {
PrototypeOfArrayIteratorPrototype = getPrototypeOf(getPrototypeOf(arrayIterator));
if (PrototypeOfArrayIteratorPrototype !== Object.prototype) IteratorPrototype = PrototypeOfArrayIteratorPrototype;
}
}
if (IteratorPrototype == undefined) IteratorPrototype = {};
// 25.1.2.1.1 %IteratorPrototype%[@@iterator]()
if (!IS_PURE && !has(IteratorPrototype, ITERATOR)) hide(IteratorPrototype, ITERATOR, returnThis);
module.exports = {
IteratorPrototype: IteratorPrototype,
BUGGY_SAFARI_ITERATORS: BUGGY_SAFARI_ITERATORS
};
Version data entries
10 entries across 10 versions & 3 rubygems