oop - How to override private variable in javascript?

Question

// base function
function Man(name) {
  // private property
  var lover = "simron";
  // public property
  this.wife = "rocy";
  // privileged method
  this.getLover = function(){return lover};
  // public method
  Man.prototype.getWife = function(){return this.wife;};
}

// child function
function Indian(){
  var lover = "jothika"; 
  this.wife = "kamala";
}

Indian.prototype = aMan;
var aMan = new Man("raja");
oneIndian = new Indian();
oneIndian.getLover();

I got answer as "simron" but I expect "jothika".

How my understanding is wrong?

Thanks for any help.

Answer 1

First of all your code doesn't work at all and it's wrong.
Here's the code that works:

// base function
function Man(name) {
  // private property
  var lover = "simron";
  // public property
  this.wife = "rocy";
  // privileged method
  this.getLover = function(){return lover};
  // public method
  Man.prototype.getWife = function(){return this.wife;};
}

// child function
function Indian(){
  var lover = "jothika"; 
  this.wife = "kamala";
  this.getLover = function(){return lover};
}

Indian.prototype = new Man();
Indian.prototype.constructor = Indian;

var oneIndian = new Indian();
document.write(oneIndian.getLover());

aMan didn't exist until you declared it.
Also you should have set the ctor to Indian.
And at last, getLover is a closure that refers to Man and not to Indian.
Declaring it again refers it to the right scope.
See here and here for further details and improvements of your code.