- var classof = require('../internals/classof');
- var wellKnownSymbol = require('../internals/well-known-symbol');
- var Iterators = require('../internals/iterators');
- var ITERATOR = wellKnownSymbol('iterator');
- module.exports = function (it) {
- var O = Object(it);
- return O[ITERATOR] !== undefined
- || '@@iterator' in O
- // eslint-disable-next-line no-prototype-builtins -- safe
- || Iterators.hasOwnProperty(classof(O));
- };
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