var object1 = function () {
    return {
        action1  : function () { console.log('action1'); },
        action2  : function () { console.log('action2'); },
        action3  : function () { console.log('action3'); }
    };
};

var object2 = function () {
    var extend  = object1();
        extend.action2 = function () {
        console.log('actionNOTHING PLAYA!! Action2 got ownt!');
        action4 : console.log('action4');
    };

    return extend;
};

//var display = object1();
var display = object2();
console.log(display);
for (method in display) {
    if (typeof display[method] === "function") {
        display[method]();
    };
};