| 1 | 'use strict';
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| 2 |
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| 3 | var isArguments = require('es5-ext/function/is-arguments')
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| 4 | , isString = require('es5-ext/string/is-string')
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| 5 | , ArrayIterator = require('./array')
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| 6 | , StringIterator = require('./string')
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| 7 | , iterable = require('./valid-iterable')
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| 8 | , iteratorSymbol = require('es6-symbol').iterator;
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| 9 |
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| 10 | module.exports = function (obj) {
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| 11 | if (typeof iterable(obj)[iteratorSymbol] === 'function') return obj[iteratorSymbol]();
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| 12 | if (isArguments(obj)) return new ArrayIterator(obj);
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| 13 | if (isString(obj)) return new StringIterator(obj);
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| 14 | return new ArrayIterator(obj);
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| 15 | };
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