In Selenium features the server and client are running in separate processes. Therefore, when mocking time with a tool like...

Testing with real live production data does come with at least one catch. All those real live users in your...

In a nutshell: Use git rebase --onto target-branch source-commit target-branch means "branch you want to be based...

Write your app using HTML, CSS or JavaScript, upload it to the PhoneGap Build service and get back app-store...

When deploying, Capistrano puts a REVISION file into your application's release directory. It contains the hash of the commit...

For my Gem Session project Holly I ran the Ironman of drag'n'drop implementations: Dragging in nested lists

This will make MySQL log all received queries so you can see for yourself what happens on the database level...

The $.cssHooks object provides a way to define functions for getting and setting particular CSS values. It can also be...

If you want to install rabbitmq plugins on Ubuntu 12.04 you can do this with: /usr/lib/rabbitmq/lib/rabbitmq_server-2.7.1/sbin/rabbitmq-plugins This binary is not...

I've got often this error on just one server: Err http://de.archive.ubuntu.com precise/universe amd64 Packages 404 Not Found [IP...

Check if you have puppetsync enabled on the master and client [main] logdir=/var/log/puppet vardir=/var/lib/puppet ssldir=/var/lib/puppet/ssl rundir=/var/run/puppet...

Rack has a limit for how many form parameters it will parse. This limit is 65536 by default.

Ruby 1.9.2 is very slow when loading files, especially starting Rails servers or running specs takes forever.

Media Queries have reached W3C Recommendation on June 19th 2012. If you were interested in other (future) web standards you...

If you're suffering from a huge de.yml or similiar file, cry no more. Rails lets you freely organize your...

If you upgrade to the mysql2 gem, you will run into the problem that the server's database.yml (which is...

When using the asset pipeline your assets (images, javascripts, stylesheets, fonts) live in folders inside app: app/assets/fonts app/assets/images...

xip.io is a magic domain name that provides wildcard DNS for any IP address. Say your LAN IP address is...

deploy-to-production now calls Capistrano with bundle exec since we started to bundle Capistrano in all projects.

TagCanvas is a Javascript class which will draw and animate a HTML5 canvas based tag cloud.

I had trouble serving an MP4 video to my iPad. Although the video complied with all the specs (H.264 codec...

Geoffrey Grosenbach has created Gruff for easily plotting graphs. It is written in pure Ruby and integrates with Rails applications...

Localizing a non-trivial application can be a huge undertaking. This card will give you an overview over the many...