Single step and slow motion for Cucumber scenarios can come in handy, especially in @javascript scenarios. # features/support/examiners.rb AfterStep('@slow_motion...
In order to open a MySQL shell without the need to enter user and password, you can say the following...
Oniguruma is an advanced regular expression engine for Ruby. Install Oniguruma with binary dependencies like this: sudo apt-get install...
Since version 11.10 Opera provides support for linear gradients using -o-linear-gradient. The syntax is pretty similar to Mozilla...
In case you have sensitive data within your RDS instance, you want to use encrypted connections between your application and...
Recently, we had an interesting lunch-break with the rails 3.1. asset-pipeline in production mode. Daniel Zahn made a...
The colors in Rails log files are helpful when watching them but, since they are ANSI color codes like ^[[4...
Never use raise_error without specifying the Error you expect. expect { do_a_lot_of_complicated_stuff }.to raise_error...
When cucumber encounters a failing step in a @javascript feature, the selenium browser window instantly closes. Sometimes you do not...
The technique described in this card has an important caveat: The result of GROUP_CONCAT is truncated to the maximum...
You can use heredoc to avoid endlessly long lines of code that nobody can read. Heredoc strings preserve linebreaks and...
There is a new card about how to do this with the new AWS Command Line Interface
If Rails or Rake are complaining about a missing gem that is listed in your Gemfile.lock and the listed version...
Sometimes you may need to figure out what branches exist on a remote repository so you can pull them down...
Good guide to different ways you can write CSS selectors that select elements by their attribute values.
This will reduce the filesize of foo and bar to 0 bytes: truncate -s0 foo bar If the files do...
When you run rake db:create and get this error message Couldn't create database for {"encoding"=>"utf8", "username"=>"root...
Most likely you run rake and your code is causing an exception which is not the one shown in your...
whatsmydns.net is an online service that allows you to instantly perform a DNS lookup to check a hostnames current IP...
When your Solr seems to be started properly (a process is running with the correct data directory) but never responds...
When you put a Rake task into lib/tasks, but running it fails with... Don't know how to build task...
cURL makes a web request and shows you the response body. You can redirect the response body to /dev/null just...
Consider you have a website vhost listening to www.example.com, redirecting all incoming requests that do not talk about the configured...
Here is a way to create a duplicate of one database, with all its tables and their data, under a...