Question

Ok, just solved one problem where this refered to the wrong scope. Now I have another problem.

So I want to call a method that is inside a method. But I do not know how, check this source:

function someObj() {
   var self = this;

   this.someMethod1 = function() {
      var elementBtn = document.getElementById('myBtn');

      elementBtn.onclick = function() { 
         self.someMethod2.methodMethod(); 
         //I want this.someMethod2.methodMethod() to be called
         //...but I get an big error instead. Is it even possible?
         //this.someMethod2() works fine.

      };
   };
   this.someMethod2 = function() {
      this.methodMethod = function() {
         alert('THIS IS THE ONE I WANTED!');
      };
      alert('NO, NOT THIS!');
   };
}

Error msg:

Uncaught TypeError: Object function () { …

Answer 1

With your code, someMethod2 would need to execute first for the function expression to be assigned. Even then, it would be assigned to the parent instance.

Bearing in mind that all functions are objects in JavaScript, this is what you want instead:

this.someMethod2 = function() {
   alert('NO, NOT THIS!');
};
this.someMethod2.methodMethod = function() {
   alert('THIS IS THE ONE I WANTED!');
};