Question

I want private variables to be constructed for each child and not shared. (That’s the minimum I need…)

function AbstractClass(){

var private_var; // not shared
// todo : how to create a static(shared) variable?

this.virtual_method = function(){};

this.some_fun = function(){
   console.log(private_var);
}
// todo : how to access static(shared) variable?

}

this base abstract class should be convenient enough for constructing many children out of it

function Child1(param){
    private_var = param;

    this.virtual_method = function(){alert('child1');}; //redefining

    this.some_fun();

}


var first_child = new Child1(5); //console : 5

var second_child = new Child1(16); //console : 16

first_child.some_fun() //console : 5;

second_child.some_fun() //console : 16;

fist_child.virtual_method();  // alert

Please help me… I need some working code to be a guide for me

Answer 1

If you mean the library prototype.js, look here. (I’m guessing you do, because native javascript does not have classes).