Javascript: Revealing Module Pattern

/*
A quick sample of the module pattern from JavaScript Patterns
 */

var app = app || {};

app.module = (function(){
    // private members
    var prop = 0;


    //private functions
    function myPrivateFunction(){
        prop ++;
    }

    // public api
    return {
        myPublic : function() {
            return prop;
        },
        myRevealingMethod : myPrivateFunction
    }
})();

app.module.myPublic(); // 0
app.module.myRevealingMethod();
app.module.myPublic(); // 1