map.js #1

var forOwn = require('./forOwn');
var makeIterator = require('../function/makeIterator_');

    /**
     * Creates a new object where all the values are the result of calling
     * `callback`.
     */
    function mapValues(obj, callback, thisObj) {
        callback = makeIterator(callback, thisObj);
        var output = {};
        forOwn(obj, function(val, key, obj) {
            output[key] = callback(val, key, obj);
        });

        return output;
    }
    module.exports = mapValues;