JavaScript inheritance behaviour testing

js_inheritance

var prototypeTest = (function () {
    /**
     * Instance class definition
     * inherits from Base
     */
    function Instance() {
        //super class constructor
        Base.apply(this, arguments);
    }
    
    /**
     * Base class definition
     */
    function Base(name) {
        var privates = {
            'name': name
        };
        
        this.getPrivate = function (name) {
            return privates[name];
        };
    }
    
    /**
     * prorotype function
     */
    Base.prototype.get = function () {
        return this.getPrivate.apply(this, arguments);
    };
    
    /**
     * resolving inheritance in the scope
     */
    Instance.prototype = Base.prototype;
    
    /**
     * exposing 2 instances
     */
    return {
        i: new Instance('Geri'),
        j: new Instance('Benő')
    };
}());

/**
 * short logging to check behaviour
 */
console.log(Object.getPrototypeOf(prototypeTest.i));
console.log(Object.getPrototypeOf(prototypeTest.i).set = function () {});

console.log(Object.getPrototypeOf(prototypeTest.i) === Object.getPrototypeOf(prototypeTest.j));
console.log(Object.getPrototypeOf(prototypeTest.j));
console.log(Object.getPrototypeOf(prototypeTest.i));

console.log(prototypeTest);

console.log(prototypeTest.i.get('name'));
console.log(prototypeTest.j.get('name'));