// Create the constructor for a Person object
  function Person( name ) {
      this.name = name;
  }
  
  // Add a new method to the Person object
  Person.prototype.getName = function() {
      return this.name;
  };
  
  // Create a new User object constructor
  function User( name, password ) {
      // Notice that this does not support graceful overloading/inheritance
      // e.g. being able to call the super class constructor
      this.name = name;
      this.password = password;
  };
  
  // The User object inherits all of the Person object's methods
  User.prototype = new Person();
  
  // We add a method of our own to the User object
  User.prototype.getPassword = function() {
      return this.password;
  };