How to call Javascript function inside its own class?

Question

I am creating a Javascript class like so:

function Board(){
 this.initializePositionArray=function(){
 var tempPositionArray=[];
 tempPositionArray[0][0]="x";
 return tempPositionArray;
 };
 this.positionArray=initializePositionArray();
}

My aim is to initially fill positionArray with values using initializePositionArray(). However, the call to initializePositionArray() gives the following error:

Uncaught ReferenceError: initializePositionArray is not defined

• Jean-Baptiste Yunès: Missing this in context
• Rajesh Dixit: Possible duplicate of Call functions from function inside an object (object literal)
• Jai: @Rajesh it doesn't seem to be.

Answer 1

You have to call it with this:

this.positionArray=this.initializePositionArray();

Because it is a property of your constructor and you were calling it as a global function which is not defined.

• Rajesh Dixit: Should you not look for dupes and close it?
• Jai: Oh is it? not looked it though. and it doesn't seem to be dupe as per your suggestion.
• sigil: @Rajesh, is it actually a duplicate? I am defining my object in a different way than in the proposed duplicate question.
• Rajesh Dixit: @sigil Its not about how you define the object. At the end you want to call a method inside same object. Yes accepted answer is not the desired answer but other answer addressed it correctly
• Rajesh Dixit: @sigil this might help: stackoverflow.com/questions/10918228/…