There is a bug in ActiveRecord 2.3.x that leads to changes in nested forms getting lost. class Project < ActiveRecord...

This is awesome. Only ran smoothly in Chrome. Is a slideshow in Firefox.

This works well in the simplified case, when your link disappears after it was clicked. Let link_to_remote behave...

You probably know that you can use CSS selectors to match against elements and their attributes, such as:

You can use the content CSS attribute to set an element's content -- which is especially useful for the :before...

Since I'm a software architect and a web developer, I get often approached by people with their new ideas...

A tooltip library that does not use Javascript. Works in IE9+. This library (or the technique used by it) could...

Ruby has two different ways to match the start and the end of a text: ^ (Start of line) and $ (End...

Microsoft provides virtual machines for different Internet Explorer versions. The images are available for various virtualization solutions, including VirtualBox...

When you accept a table in your Cucumber step definition, that table object will have the cryptic type Cucumber::Ast...

January has been a very bad month for Ruby on Rails developers, with two high-severity security bugs permitting remote...

If git gives you an error message such as "fatal: bad config file line 123 in .git/config" after you tried...

Defining one callback several times in the same class behaves different in ActiveRecord and ResourceController. While in ActiveRecord the callbacks...

Spreewald now comes with a step that tests if a form field is visible: Then the "Due date" field should...

Amazon Elastic Transcoder is video transcoding in the cloud. It is designed to be a highly scalable, easy to use...

Consul 0.6.1+ gives your Power class a number of static methods that behave neutrally in case Power.current is nil. This...

Consul 0.6.1+ gives you a way to dynamically access and query powers for a given name, model class or record...

We recently had a problem on a Memcache cluster, where one of the servers showed a significantly worse cache hit...

Behave.js is a lightweight library for adding IDE style behaviors to plain text areas, making it much more enjoyable to...

validates_uniqueness_of is not sufficient to ensure the uniqueness of a value. The reason for this is that in...

Prism is a new lightweight, extensible syntax highlighter, built with modern web standards in mind. It’s a spin-off...

The attached article outlines considerations when choosing client-side vs. server-side implementations of the Google Geocoding APIs (geocoder, directions...

Mobile browser's ignore the autoplay attribute on and elements. Stupid reasons include saving mobile bandwidth on behalf of the...