levi

var APP = {};

APP.namespace = function(path) {
  var parts  = path.split('.'),
      parent = APP;
  
  if (parts[0] === 'APP') parts = parts.slice(1);
  
  for (var i = 0, len = parts.length; i < len; i++) {
    if (typeof parent[parts[i]] === 'undefined') {

levi

# Font Squirrel Font-face Generator Configuration File
# Upload this file to the generator to recreate the settings
# you used to create these fonts.

{"mode":"expert","formats":["ttf","woff","eot","svg"],"tt_instructor":"default","options_subset":"advanced","subset_custom":"","subset_custom_range":"f000-f073,f200-f273","emsquare":"2048","spacing_adjustment":"0","rememberme":"Y"}

levi

I found this laying around in an old note app I haven't opened in a while. Whenever I learn something new, I like to write it down and explain it to myself in the most basic and non-allegorical method possible. Turns out that these explanations make for great unpublished blog posts. Constructors are probably one of the most mysterious features of Javascript and I wish someone would have explained it to me like this when I first learnt it.

The prototype property of a constructor has always confused me. I've never really been certain to what it actually did. I just knew that it was a simple way of adding properties and methods to a class-like object that I could instantiate. This week, I decided to delve into the problem to figure out what is actually going on here.

Turns out the new construct is just a distraction added by some programmers who thought Javascript needed to appeal to the Java community. Sounds like a good idea during 1995. However, the introduction of this language construct put Javascript

levi

//     (c) 2010 Cameron Westland, Big Bang Technology Inc.
//     Backbone may be freely distributed under the MIT license.
//     For all details and documentation:
//     http://bigbangtechnology.github.com/stately

/**
  Example:
  var MyView = Backbone.View.extend(Stately).extend({
    states: {
      EDITING: "editing",

levi

# Install with:
# bash < <(curl -L https://raw.github.com/gist/2323328)
#
# Reference: http://blog.wyeworks.com/2011/11/1/ruby-1-9-3-and-ruby-debug

echo "Installing ruby-debug with ruby-1.9.3-p125 ..."

curl -OL http://rubyforge.org/frs/download.php/75414/linecache19-0.5.13.gem
curl -OL http://rubyforge.org/frs/download.php/75415/ruby-debug-base19-0.11.26.gem

levi

module MyEngine
  module Admin
    class ApplicationController < ActionController::Base
      def current_ability
        MyEngine::Ability.new(current_user)
      end
    end
  end
end

levi

Uninitialized constant Ability

levi

load_and_authorize_resource :class => MyEngine::User

levi

Uninitialized constant User

levi

module MyEngine
  module Admin
    class UsersController < Admin::ApplicationController
      load_and_authorize_resource

      def index
        ...
      end
    end
  end