jQuery.spritely is a jQuery plugin created by Artlogic for creating dynamic character and background animation in pure HTML and JavaScript. It's a simple, light-weight plugin with a few simple methods for creating animated sprites such as the birds you see on this page, and dynamic scrolling backgrounds.

It occurred to me that many Rails/Passenger/Apache applications may have caching set up in a way that it appears to be caching, when it is not actually caching.

Info on install database_cleaner.

A simple implementation of an Identity Mapper for Active Record.

The Web of Data has many equivalent URIs.

In game development, it's very common to want a random number. Maybe you want to determine damage done, if there was a critical, or what slot on the board to insert your piece at. And surprisingly (or perhaps, not), programmers are often looking to make this random number a little less... random.

I've used a number of the box drawing entities, namely U+250C, U+2510, U+2514, U+2518 and the square is U+25A1.

Capybara sets up some tags for you to use in Cucumber. Often you’ll want to run only some scenarios with a driver that supports JavaScript, Capybara makes this easy: simply tag the scenario (or feature) with @javascript:

Rule engines are commonly used in enterprise-level companies to decide things like how much your car insurance premium will be. Let’s start using this for something more fun!

• Unlock achievements for running your test suite!

Ambitious Query Indexer is a Rails plugin to identify database indexes that are missing. Rather than looking at tables and guessing what needs indexing, it will locate and run as many queries as it can find and suggest indexes that could be added based upon its findings.

Eventually you’ll forget that you used to spend hours testing your code in a browser, and start complaining that your automated tests are taking minutes to run! You’ll have intense debates with co-workers about what to test and how to test it properly. You’ll start writing the test first to expose the bug or missing feature, then write the code required to pass the test.

We simply convert your design (PSD, PNG, AI, etc.) into a hand coded, pixel perfect and Standards compliant XHTML/CSS. Since our service is targeted to agencies and freelancers the job done by us is 100% confidential. In addition we are offering payment after satisfaction.

Ruby Ghostscript (RGhost) is a library for document developers wanting a quick and easy way to generate pdf files. It's optimized to work with larger documents.

It’s a fact of CSS life that the ‘border’ of any block level element gets factored into it’s final box size for layout. That means that if you add a border on a hover to an element that didn’t already have a border of that exact size, you will cause a layout shift.

Consider a Java interface and class: Dog and DefaultDog. Which of these two conventions is best?

Grafico is a javascript charting library built with Raphaël and Prototype.js. The library provides a wide array of graphs and stays with the guidelines laid out by Stephen Few and Edward Tufte. Grafico provides pretty charts that effectively communicate their information.

The Ruby Koans walk you along the path to enlightenment in order to learn Ruby. The goal is to learn the Ruby language, syntax, structure, and some common functions and libraries. We also teach you culture. Testing is not just something we pay lip service to, but something we live. It is essential in your quest to learn and do great things in the language.

XRefresh is a browser plugin which will refresh current web page due to file change in selected folders. This makes it possible to do live page editing with your favorite HTML/CSS editor.