Question

I have a JS function with the structure of

 function myFunc (method){
      this.type = method;
      this.border = '20';
      this.add = function(){
           // some codes
           privateFunc();
      }

      var privateFunc = function(){
           //my private function
      }
  }

The problem is, that the private function does not have access to any of the variables (this.type, this.border). They are not defined inside it! Why not?! How can I have a private function there with access to the variables?

Answer 1

Just for the sake of completeness

 function myFunc (method){ 
      this.type = method; 
      this.border = '20'; 
      // take a reference to the current object
      var self = this;
      this.add = function(){ 
           // some codes 
           privateFunc(); 
      } 

      var privateFunc = function(){ 

           //now you can access your members via self variable
           self.border = 10;
      } 
  } 

The clue here is the usage of closure.