debian-mirror-gitlab/core-js/internals/is-array-iterator-method.js
2019-09-25 13:30:05 +05:30

10 lines
361 B
JavaScript

var wellKnownSymbol = require('../internals/well-known-symbol');
var Iterators = require('../internals/iterators');
var ITERATOR = wellKnownSymbol('iterator');
var ArrayPrototype = Array.prototype;
// check on default Array iterator
module.exports = function (it) {
return it !== undefined && (Iterators.Array === it || ArrayPrototype[ITERATOR] === it);
};