Object map functions

objectmap.js

/*
    Iterate over an object
*/
Object.prototype.map = function(cb) {
    Object.keys(this).map(function(item) {
        if (this.hasOwnProperty(item)) {
            this[item] = cb(item, this[item], this);
        }
    }.bind(this));
    return this;
}

/*
    Iterate over an object and return an array with the changed values
*/
Object.prototype.armap = function(cb) {
    return Object.keys(this).map(function(item) {
        if (this.hasOwnProperty(item)) {
            return cb(item, this[item], this);
        }
    }.bind(this));
}