Question

var fn = function() {


    this.method1 = function() {

        return this.public;
    };


    this.method2 = function() {

        return {

            init: function() { return this.public; }
        }
    };


    fn.prototype.public = "method prototype";
};

create object fn

var object = new fn();

object.method1() // "method prototype"

object.method2().init(); // undefined 

this.public Prototype in method2().init() function run return undefined ?

Is there an alternative to Prototype?
thank you.

Answer 1

The issue is related to the different scope in which this is bound on init function of method2(), so try this:

this.method2 = function() {
    var self = this;      
    return {
        init: function() { return self.public; }
    }
};

so

object.method2().init(); // return "method prototype"