3 var isArguments = require('es5-ext/function/is-arguments')
4 , callable = require('es5-ext/object/valid-callable')
5 , isString = require('es5-ext/string/is-string')
6 , get = require('./get')
8 , isArray = Array.isArray, call = Function.prototype.call
9 , some = Array.prototype.some;
11 module.exports = function (iterable, cb/*, thisArg*/) {
12 var mode, thisArg = arguments[2], result, doBreak, broken, i, l, char, code;
13 if (isArray(iterable) || isArguments(iterable)) mode = 'array';
14 else if (isString(iterable)) mode = 'string';
15 else iterable = get(iterable);
18 doBreak = function () { broken = true; };
19 if (mode === 'array') {
20 some.call(iterable, function (value) {
21 call.call(cb, thisArg, value, doBreak);
22 if (broken) return true;
26 if (mode === 'string') {
28 for (i = 0; i < l; ++i) {
31 code = char.charCodeAt(0);
32 if ((code >= 0xD800) && (code <= 0xDBFF)) char += iterable[++i];
34 call.call(cb, thisArg, char, doBreak);
39 result = iterable.next();
41 while (!result.done) {
42 call.call(cb, thisArg, result.value, doBreak);
44 result = iterable.next();