Call functions from function inside an object (object literal)

javascript function object-literal
holyredbeard picture holyredbeard · Nov 21, 2011 · Viewed 67k times · Source

I'm learning to use object literals in JS, and I'm trying to get a function inside an object to run by calling it through another function in the same object. Why isn't the function "run" running when calling it from the function "init"?

var runApp = {

    init: function(){   
         this.run()
    },

    run: function() { 
             alert("It's running!");
    }
};

Answer

Matt Ball picture Matt Ball · Nov 21, 2011

That code is only a declaration. You need to actually call the function:

runApp.init();

Demo: http://jsfiddle.net/mattball/s6MJ5/

Related questions

Javascript 'colon' for labeling anonymous functions?

What does this code refer too? queryString: function() { //some code } I tested it in the WebConsole (Firefox) but it wouldn't execute, so I'm thinking that it isn't equivalent to function queryString() {}. So what is it exactly?

Read More
How do JavaScript closures work?

How would you explain JavaScript closures to someone with a knowledge of the concepts they consist of (for example functions, variables and the like), but does not understand closures themselves? I have seen the Scheme example given on Wikipedia, but …

Read More
Set a default parameter value for a JavaScript function

I would like a JavaScript function to have optional arguments which I set a default on, which get used if the value isn't defined (and ignored if the value is passed). In Ruby you can do it like this: def …

Read More