Question

var me = null;
var testFn = (function() {
    me = this;
    return {
        me1: me,
        fn1 : function() {
           me = this;
             return {   
                    me2 : me,
                    fn2 : function() {
                        me = this;
                        return {
                            me3: me
                        }
                    }
                }        
        }
    }
})();

OR:

var testFn = (function() {
    var me = this;
    return {
        me1: me,
        fn1 : function() {
           var me = this;
             return {   
                    me2 : me,
                    fn2 : function() {
                        var me = this;
                        return {
                            me3: me
                        }
                    }
                }        
        }
    }
})();

Between two segments given above, which one is best way to referencing this. Is there any other way best, please suggest.

Thanks…..

Answer 1

I would recommend using the second approach because me is declared inside a closure so iot doesn’t pollute context where it is not needed. It is also clearer to which context me belongs too.