jlong

// Brightness math based on:
//   http://www.nbdtech.com/Blog/archive/2008/04/27/Calculating-the-Perceived-Brightness-of-a-Color.aspx

$red-magic-number: 241;
$green-magic-number: 691;
$blue-magic-number: 68;
$brightness-divisor: $red-magic-number + $green-magic-number + $blue-magic-number;

@function brightness($color) {
  // Extract color components

ngauthier

#!/usr/bin/env ruby
# From: http://ngauthier.com/2014/06/scraping-the-web-with-ruby.html

require 'capybara'
require 'capybara/poltergeist'
require 'csv'
require 'gdbm'

class NickBot
  include Capybara::DSL

scottjehl

I wanted to figure out the fastest way to load non-critical CSS so that the impact on initial page drawing is minimal.

TL;DR: Here's the solution I ended up with: https://github.com/filamentgroup/loadCSS/

---

For async JavaScript file requests, we have the async attribute to make this easy, but CSS file requests have no similar standard mechanism (at least, none that will still apply the CSS after loading - here are some async CSS loading conditions that do apply when CSS is inapplicable to media: https://gist.github.com/igrigorik/2935269#file-notes-md ).

Seems there are a couple ways to load and apply a CSS file in a non-blocking manner:

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

henrik

class ApplicationController < ActionController::Base

  # stuff

  private

  # These groups are equivalent:
  #
  #   render action: :new, locals: { item: x }
  #   render :new, locals: { item: x }

aaronmcadam

    &:hover {
      position: relative;

      &:before {
        content: " ";
        height: 24px;
        width: 24px;
        left: 0;
        top: 0;
        position: absolute;

aaronmcadam

# From http://railscasts.com/episodes/287-presenters-from-scratch?view=comments
# I added spec/support/presenters.rb file and I require it from spec_helper.rb:

RSpec.configure do |config|
  config.include ActionView::TestCase::Behavior, example_group: {file_path: %r{spec/presenters}}
  config.include RSpec::Rails::Matchers::RenderTemplate, example_group: {file_path: %r{spec/presenters}}
end

# Example:
presenter.method.should render_template('blah/_blah')

Killavus

Photos = {}

class Photos.App
  constructor: ->
    @gui = new Photos.Gui($("#photos-list"))
    @backend = new Photos.Backend()

  start: =>
    @backend.fetchPhotos()
      .done(

jamiebuilds

(function(root, factory) {
  if (typeof define === 'function' && define.amd) {
    define(['backbone.marionette', 'backbone.radio', 'underscore'], factory);
  } else if (typeof exports !== 'undefined') {
    module.exports = factory(require('backbone.marionette'), require('backbone.radio'), require('underscore'));
  } else {
    factory(root.Backbone.Marionette, root.Backbone.Radio, root._);
  }
}(this, function(Marionette, Radio, _) {
  'use strict';

patmaddox

module AuthorizedController
  # ... full code in the paid lesson
  
  def show
    resource = resource_by_id

    if resource.viewable_by?(current_user)
      render json: resource
    else
      render text: 'Unauthorized', status: :unauthorized