MyObjectvtable = [];
  function MyInnerObject() {}

  function MyObject() {
      this.mNum = 0;
      this.mObject = new MyInnerObject();
      this.mStr = "hello!";
      this.vtable = MyObjectvtable;
  }

  function VirtualMethod() {
      var that = this;
      console.log(String(that.mNum) + that.mStr);
  };

  function NonVirtual(that) {
      console.log(String(that.mNum) + that.mStr);
  }

  MyObject.prototype.VirtualMethod = VirtualMethod;
  MyObjectvtable[0] = VirtualMethod;
  MyObjectvtable[1] = NonVirtual;

  pobj = new MyObject();

pobj.VirtualMethod();

NonVirtual(pobj);

pobj.vtable[0].bind(pobj)();

pobj.vtable[1](pobj);