Question

Basicly, i want “theId” to be equal to what “getId” returns. But how?

var Quiz = {
   getId : function() {
      var params = 1;
      return params;
   },
   theId : getId(),
};

Answer 1

An object literal can’t refer to properties/methods within itself, because at the time the object literal is evaluated the object doesn’t exist yet. You have to do it as a two-step process:

var Quiz = {
   getId : function() {
      var params = 1;
      return params;
   }
};
Quiz.theId = Quiz.getId();

Note that that sets theId to whatever getId() returned at that time, it doesn’t somehow automatically update theId if your real-world function is more dynamic than your example and potentially returns different values each time it’s called.

Alternatively if the function is declared before the object you can create both object properties at once, with one being a reference to the function and the other being the result of calling it.