Event based JS on page load for rails App

Event Manager

if typeof(Object.create) != 'function'
  Object.create = (o) ->
    F = () -> { }
    F.prototype = o
    return new F()

fromPrototype = (prototype, object) ->
  newObject = Object.create(prototype)
  `for(prop in object)
    {
      if(object.hasOwnProperty(prop))
        newObject[prop] = object[prop];
    }`
  return newObject

window.EventHandler = fromPrototype Array,
  register_init: (names, fun) ->
    if(typeof(names.forEach) == 'undefined')
      n=names
      names=[n]
    for n in names
      previously_registered=this[n]
      this[n]=() ->
        if(typeof(previously_registered) != 'undefined')
          previously_registered.call()
        fun.call()
  init: (name) ->
    if(typeof(this[name]) != 'undefined')
      this[name]()

Event Trigger in Page Footer

$(document).ready(function(){
  EventHandler.init("#{controller.controller_name}");
  EventHandler.init("#{controller.controller_name}_#{controller.action_name}");
})

Register an Event

EventHandler.register_init ["home_show"], () ->
  alert('herp a derp')
  
EventHandler.register_init ["user_show", "user_index"], () ->
  alert('herp a lerp')