Singleton in Javascript using a closure and the module pattern

singleton.js

// Singleton
var immortal = (function () {
  var therecanbeonlyone = {name: ''};
  return function () {
    return therecanbeonlyone;
  };
})();

console.log('First there were none', new immortal());

var badguy = new immortal();
badguy.name = 'Duncan MacLeod of the clan MacLeod';
console.log('Then the scotsman reigned', new immortal());

var hero = new immortal();
hero.name = 'Sebastiaan';
console.log('Until a new hero arose', new immortal());

console.log('There can be only one!', badguy === hero);