How to create an object with private members using Object.create() instead of new

Question

EDIT: I figured it out from Bergi\'s answer in the end.

Thanks Bergi.

pubPrivExample = (function () {
    return {
        init : function () {
             


        

Answer 1

I think this is a clear way to achieve your requirements:

var personFactory = function(id, name, age){
    var _id = id;
    var _name = name;
    var _age = age;

    var personPrototype = {
        getId: function(){
            return _id;
        },
        setId: function(id){
            _id = id;
        },
        getName: function(){
            return _name;
        },
        setName: function(name){
            _name = name;
        },
        getAge: function(){
            return _age; 
        },
        setAge: function(age){
            _age = age;
        },
        work: function(){
            document.write(this.toString());
        },
        toString: function(){
            return "Id: " + _id + " - Name: " + _name + " - Age: " + _age;
        }
    };

    return Object.create(personPrototype);
};

Usage:

var renato = personFactory(1, "Renato Gama", 25);
console.log(renato.getName()); //logs "Renato Gama"
renato.setName("Renato Mendonça da Gama");
console.log(renato.getName()); //logs "Renato Mendonça da Gama"

If I am not wrong this is one the MODULE PATTERN usages. Refer to this post for a nicer explanation. This is also a good post about the subject.