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- var global = require('../internals/global');
- var classof = require('../internals/classof');
- var hasOwn = require('../internals/has-own-property');
- var wellKnownSymbol = require('../internals/well-known-symbol');
- var Iterators = require('../internals/iterators');
- var ITERATOR = wellKnownSymbol('iterator');
- var Object = global.Object;
- module.exports = function (it) {
- var O = Object(it);
- return O[ITERATOR] !== undefined
- || '@@iterator' in O
- || hasOwn(Iterators, classof(O));
- };
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