Calling a method within a Javascript Object

Question

I'm trying to create a javascript object that can call other methods within itself. However, I'm running into a weird problem that I just can't seem to figure out.

I have the following code

myObjectDef = function() {
    this.init = function() {
        //do some stuff
        this.doSecondInit();
    }
    this.doSecondInit = function() {
        //do some more stuff
    }
}

myObject = new myObjectDef();
myObject.init();

I am getting an error that states "Message: Object doesn't support this property or method". And it ends at this.doSecondInit();. I can't quite figure out why it's doing this. My code runs great up to the call to the second method. How do I make this work?

Your code looks OK and works fine for me: jsfiddle.net/vdVE8 - maybe you'll need to show the missing bits. — nnnnnn
– nnnnnn, Commented Mar 6, 2012 at 0:26

Matti Virkkunen · Accepted Answer · 2012-03-06 00:19:32Z

3

There's an extra set of parenthesis here:

this.doSecondInit() = function() {

You can't assign to the result of a function call, let alone to the result of a function that doesn't even exist.

After your edit, your thing seems to work fine:

http://jsfiddle.net/nabVN/

You sure you didn't have the same typo in your actual code? Better start getting used to not putting that () after every function call, which is probably a bad habit carried over from languages where functions aren't values.

answered Mar 6, 2012 at 0:19

Matti Virkkunen

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1 Comment

Robbert Over a year ago

Looks like I'm going to need to look at my code more carefully. It's definitely not working for me and I definitely don't have the first set of parenthesis. I'm sure there's something else that I'm overlooking at this point.

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