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'use strict';
var callable = require('es5-ext/object/valid-callable')
, isString = require('es5-ext/string/is-string')
, get = require('./get')
, isArray = Array.isArray, call = Function.prototype.call;
module.exports = function (iterable, cb/*, thisArg*/) {
var mode, thisArg = arguments[2], result, doBreak, broken, i, l, char, code;
if (isArray(iterable)) mode = 'array';
else if (isString(iterable)) mode = 'string';
else iterable = get(iterable);
callable(cb);
doBreak = function () { broken = true; };
if (mode === 'array') {
iterable.some(function (value) {
call.call(cb, thisArg, value, doBreak);
if (broken) return true;
});
return;
}
if (mode === 'string') {
l = iterable.length;
for (i = 0; i < l; ++i) {
char = iterable[i];
if ((i + 1) < l) {
code = char.charCodeAt(0);
if ((code >= 0xD800) && (code <= 0xDBFF)) char += iterable[++i];
}
call.call(cb, thisArg, char, doBreak);
if (broken) break;
}
return;
}
result = iterable.next();
while (!result.done) {
call.call(cb, thisArg, result.value, doBreak);
if (broken) return;
result = iterable.next();
}
};
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