--- /dev/null
+'use strict';
+module.exports = function (obj, cb) {
+ var ret = {};
+ var keys = Object.keys(obj);
+
+ for (var i = 0; i < keys.length; i++) {
+ var key = keys[i];
+ var res = cb(key, obj[key], obj);
+ ret[res[0]] = res[1];
+ }
+
+ return ret;
+};