jquery-placeholder is a simple jQuery plugin that enables form placeholders in browsers that do not support them natively, i.e...

TL;DR Under certain circumstances, dynamically defined symbols may break keyword arguments in Ruby 2.2. This was fixed in Ruby...

It is a common misunderstanding that all [op]=-operators work the same way, but actually they don't. ||= and &&=

When using send_file (for example for attachments of any kind), make sure your application knows the correct mime types...

In RSpec you can tag examples or example groups with any tags you like simply by saying describe ReportCreator, slow...

If you want to grow a Ruby Array, you might find out about #fill but it is not really what...

# Given the following models class Image < ActiveRecord::Base has_many :album_images has_many :albums, through: :album_images

To use a form model with devise, you can simply override #resource_class in a controller. A typical use case...

Fontawesome 4 has introduced new naming conventions that make it easy to retrieve variants of a given icon.

Starting from Rails 4.0, you can use a special form options helper called #collection_check_boxes. It behaves similar to...

When ending a Selenium test Capybara resets the browser state by closing the tab, clearing cookies, localStorage, etc.

Now supports RSpec 3 and Rails 4 Drops support for state_machine, which has some issues with Rails 4 and...

Web applications can be used by multiple users at the same time. A typical application server like Passenger has multiple...

RSpec 3 has verifying doubles. This breed of mock objects check that any methods being stubbed are present on an...

What if a complicated component comes along that is naturally modeled by multiple directives? This group of directives, as a...

Here's a pretty useful steps that hasn't made it into Spreewald yet. It is best used with the...

You can hook into Slack when using Capistrano for deployment. The slackistrano gem does most of the heavy lifting for...

Often times you want to give a bunch of elements the same style, except for the last. For example borders...

If you're on Ruby 2.3+ there's a <<~ operator to automatically unindent HEREDOCs: str = <<~MESSAGE Hello Universe!

Webfonts are not always available when your JavaScript runs on first page load. Since fonts may affect element sizes, you...

To achieve this goal you have to setup the session store like the following example: MyApp::Application.config.session_store( :cookie_store...

This guide shows how to create an AngularJS application that consumes more and more memory until, eventually, the browser process...

When you are using the #selector_for helper in Cucumber steps, as e.g. Spreewald does, the following snippet will save...

Gem to show failing specs instantly. Unlike the --fail-fast option it doesn't abort abort on the first failure...