Understanding public/private instance variables

Question

I am reading a tutorial on public/private methods and can\'t make sense of the difference.

For a private method it says, \"Private members are made by the constructor. O

Answer 1

No one of this variable is trully private because if you instanciate Container you can access to secret variable :

function Container(param) {
    this.member = param;
    var secret = 3;
    var that = this;
}

var container = new Container();
console.log(container.secret);
container.secret = "toto";
console.log(container.secret);
console.log(container);

Here the result :

As you can see you can access to secret without any "Getter/Setter".

If you want to do object javascript with truly private variable, look at this tutorial :

http://blog.stchur.com/2011/09/26/true-private-variables-in-javascript-with-prototype/