Question

I’m trying to define functions on a object within a prototype like in this example:

function Particle = {
  this.calculate.x = 0;
}

Particle.prototype.calculate.calculateX = function() {
   //do calculation
}

var particle - new Particle();

If I explore particle in the browser console the ‘calculate’ object is visible but without any of the functions defined on it.

What am I missing?
Is it even possible to define an object prototype in this way?

Cheers!

Answer 1

Try this way:

function Particle() {
  this.calculate.x = 0;
}

Particle.prototype.calculate = {
    calculateX: function() {
        //do calculation
    }
}

var particle = new Particle();