JS module pattern

module.js

function evilCorp (name, laugh){
  this.name = name;
  this.laugh = laugh;
}

evilCorp.prototype.takeover = function(){
  return "My name is " + this.name + " and I am your new master! " + this.laugh;
}

var $ = new evilCorp('condescendingSeniorDev', 'muwahaha');

var myNamespace = (function(niceguy){
  
  var exports = {};

  // innocuous will not clutter the global namespace
  exports.innocuous = function foo(){
    return niceguy.takeover();
  }

  return exports;
}($)) // globals can be passed in and 'renamed' within module closure

console.log(myNamespace.innocuous());