How to have nested objects in JS?

Question

I am a c++ programmer, Here is a C++ code, how to have similar JS code,

class A {
 public:
  void sayHello();
};

class B  {
 public:
  A a;
};

main()
{
 B b;
 b.a.sayHello(); 
}

Victor Nicollet · Accepted Answer · 2010-11-25 14:31:03Z

6

// Define class A
function A() {}
A.prototype.sayHello = function() { alert('hello!'); };

// Define class B
function B() { this.a = new A(); }

// Use them
var b = new B();
b.a.sayHello();

answered Nov 25, 2010 at 14:31

Victor Nicollet

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Comments

Lloyd · Accepted Answer · 2010-11-25 14:31:10Z

1

The most basic and simplest example:

function A() {
  return {
    sayHello: function() {

    }
  }
}

function B() {
  return {
    a: new A()
  }
}

var b = new B();

b.a.sayHello();

answered Nov 25, 2010 at 14:31

Lloyd

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