aaac7fed
 liuqimichale
add
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"use strict";
var isArguments = require("es5-ext/function/is-arguments")
, isString = require("es5-ext/string/is-string")
, ArrayIterator = require("./array")
, StringIterator = require("./string")
, iterable = require("./valid-iterable")
, iteratorSymbol = require("es6-symbol").iterator;
module.exports = function (obj) {
if (typeof iterable(obj)[iteratorSymbol] === "function") return obj[iteratorSymbol]();
if (isArguments(obj)) return new ArrayIterator(obj);
if (isString(obj)) return new StringIterator(obj);
return new ArrayIterator(obj);
};
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