JavaScript constructors using JavaScript object literal notation

Question

What is the best way to build constructors in JavaScript using object literal notation?

var myObject = {
 funca : function() {
  //...
 },

 funcb : function() {         


        

Answer 1

var myObject = function(arg){
    return{
        constructor: function(arg){
            //...
            return this;
        },

        funca: function(){
            //...
        },

        funcb: function(){
            //...
        }
    }.constructor(arg);
};

//...

var myVar = new myObject("...");