Javascript caching

cache.js

var god = {
   a: 1,
   b: 2
};

var templater = (function(){
  var cache = {};
  return function(name){
      if(cache[name]){
        console.log("cached");
        return cache[name];
      }else{
        cache[name] = god[name];
        return god[name];
      }
  };
})();

console.log(templater('a'));

console.log(templater('a'));