Gist from mistakes.io

index.js

var L = {};

L.fn = function() { return 'coolio' };

L.Util = {
  extend: function(desc) {
    var args = [].slice.call(arguments, 0);
    args.map(function(item, ix, arr) {
      desc[item] = args[ix];
    });
    return desc;
  }
}

var coolio = L.Util.extend({
  cool: function() {
    return 'cool';
  },
  age: function(yr) {
    return 2014 - yr;
  }
})

L.fn()
coolio.cool();
coolio.age(1985);