JavaScript call function inside of itself

Question

I have something like this:

var MyObject = function () { };

MyObject.prototype = {
    methodA: function() {
           methodB();
    }

    methodB: function() {
           // do something
    }
}

How do I get this working? i keep getting "Object has no method 'methodB'".

You need a comma after the close brace of methodA:{} as well as a this.methodB(); instead of just methodB(); — zero298
– zero298, Commented Dec 23, 2013 at 22:03
I do have the comma after methodA:{}. this.methodB(); gives me an error in Chrome: Uncaught TypeError: Object #<Object> has no method 'methodB' — a11smiles
– a11smiles, Commented Dec 24, 2013 at 1:26

p.s.w.g · Accepted Answer · 2013-12-23 22:02:48Z

3

Try using this within methodA. For example:

var MyObject = function () { };

MyObject.prototype = {
    methodA: function() {
           this.methodB();
    },

    methodB: function() {
           alert('foo');
    }
};

var o = new MyObject();
o.methodA(); // foo

JSFiddle

answered Dec 23, 2013 at 22:02

p.s.w.g

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1 Comment

a11smiles Over a year ago

Doesn't work. In Chrome, i get the following error: Uncaught TypeError: Object #<Object> has no method 'methodB'

zerkms · Accepted Answer · 2013-12-23 22:02:43Z

2

this.methodB();

this call will work as soon as you instantiate a new object using

var newObject = new MyObject();

answered Dec 23, 2013 at 22:02

zerkms

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