Template for Revealing Module Pattern with submodule

module.js

(function(module, undefined) {
    var privateProb = "Private";    

    var privateFunc = function(prob) {
        return prob + privateProb;
    };

    module.publicProb = "Hello Module";

    module.publicFunc = function() {
        return privateFunc(module.publicProb);
    };
})(window.module = window.module || {});


(function(module, sub, undefined) {
    var Custom = function(x, y) {
        this.x = x;
        this.y = y;
    };
    
    Custom.prototype.sum = function() { 
        return this.x + this.y ; 
    };

    sub.custom = function(x, y) { 
        return new Custom(x, y); 
    };

})
(window.module = window.module || {}, 
 window.module.sub = window.module.sub || {});



console.log(module.publicFunc());

var c = module.sub.custom(1, 2);
console.log(c.sum());