oo-vs-oloo.js

//oo
function Foo(who) {
  this.me = who;
}

Foo.prototype.identify = function () {
  return this.me;
}

function Bar (who) {
  Foo.call(this, who);
}

Bar.prototype = Object.create( Foo.prototype );

Bar.prototype.speak = function () {
  console.log('Hello my name is, ' this.identify());
}

var b1 = new Bar('b1');
var b2 = new Bar('b2');

b1.speak();
b2.speak();


//oloo
Foo = {
  init: function (who) {
    this.who = who;
  },
  identify: function () {
    return this.me;
  }
}

Bar = Object.create( Foo );

Bar.speak = function () {
  console.log('Hello my name is, ' this.identify());
}

var b1 = Object.create( Bar );
b1.init('b1');

var b2 = Object.create( Bar );
b2.init('b2');

b1.speak();
b2.speak();