Encapsulation in javascript module template

Question

I read this link http://addyosmani.com/largescalejavascript/#modpattern

And I saw the following example.

var basketModule = (function() {
var basket = []; //private

return { //exposed to public
       addItem: function(values) {
            basket.push(values);
        },
        getItemCount: function() {
            return basket.length;
        },
        getTotal: function(){
            var q = this.getItemCount(),p=0;
            while(q--){
                p+= basket[q].price;
            }
        return p;
        }
      }
}());

basketModule.addItem({item:'bread',price:0.5});
basketModule.addItem({item:'butter',price:0.3});

console.log(basketModule.getItemCount());
console.log(basketModule.getTotal());

It states that "the module template is a popular design that creates an encapsulation of" privacy ", state, and organization using closures." How is this different from writing as shown below? Is it impossible to ensure privacy through the use of a domain?

var basketModule = function() {
var basket = []; //private
       this.addItem = function(values) {
            basket.push(values);
        }
        this.getItemCount = function() {
            return basket.length;
        }
        this.getTotal = function(){
            var q = this.getItemCount(),p=0;
            while(q--){
                p+= basket[q].price;
            }
        return p;
        }

}

var basket = new basketModule();

basket.addItem({item:'bread',price:0.5});
basket.addItem({item:'butter',price:0.3});

Answer 1

( ). - contructor, . , basket 'private' .

: :

var basketModule = (function() {
   function Basket(){
        var basket = []; //private
        this.addItem = function(values) {
            basket.push(values);
        }
        this.getItemCount = function() {
            return basket.length;
        }
        this.getTotal = function(){
            var q = this.getItemCount(),p=0;
            while(q--){
                p+= basket[q].price;
            }
        return p;
       }
     }
   return {
     basket: function(){return new Basket;}
   }
}());
//usage
var basket1 = basketModule.basket(), 
    basket2 = basketModule.basket(),