calling class function in another class function in javascript

Question

I want to call posts() in refresh function. Here is my code.

var TIMELINE = TIMELINE || (function (){

    /*** private ***/
    var _args = {};
    var self = this;

    return {

        init : function(Args){
            _args = Args;
        },  // init
        posts : function(data) {

            alert('posts called');

        },  // posts
        unsetMarkers : function() {

            alert('unsetMarkers called');

        },   // unsetMarkers
        refresh :   function(){
            self.posts;
        }

    };


}());

the problem is at this line self.posts; I also tried self.posts({'data':'success','another':'thing'}); How I can use posts in refresh?

"I want to call posts() in refresh function." Cool. And what's your question? — Felix Kling
– Felix Kling, Commented Sep 2, 2013 at 9:42
call like "self.posts(data);" :D You also have to pass in Data. But I do not see data constructed anywhere. — Anand
– Anand, Commented Sep 2, 2013 at 9:43
@FlixKling the problem is at this line self.posts; I also tried self.posts(); How I can use posts in refresh? — Bilal
– Bilal, Commented Sep 2, 2013 at 9:47

Felix Kling · Accepted Answer · 2013-09-02 09:51:04Z

2

There are two problems in your code:

self doesn't refer to the object with the property posts, i.e. not to the object you are returning from the function. You have var self = this; and this refers to window (assuming non-strict mode).
You are not even trying to call the function.

Instead of returning the object immediately, assign it to self:

// instead of `var self = this;`
var self = {
   // function definitions
};

return self;

and then you can call the method with

self.posts(); // note the parenthesis after the function name

If you are certain that the refresh function is always called as TIMELINE.refresh() (i.e. as a method of the TIMELINE object) , then you can also call the posts method with

this.posts();

and forget about self.

Comments

Anand · Accepted Answer · 2013-09-02 09:47:02Z

0

refresh :   function(){
    this.posts();
}

JSFIDDLE

answered Sep 2, 2013 at 9:47

Anand

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