Shared example groups are a useful RSpec feature. Unfortunately the default directory structure generated by rspec-rails has no obvious...
The Google Chrome DevTools allow you to inspect, debug, and analyze the on-device experience with the full suite of...
Extends the Chrome WebInspector so you can debug AngularJS applications and hunt down performance issues. It's really, really good...
Simply give the select helper an option :disabled, passing either a single value or an array. You need to specify...
So you're hunting down a regression (or just a bug) and want to use git bisect to find out...
The linked page lists and explains global Ruby "dollar" variables, such as: $: (load path) $* (ARGV) $? (Last exit status) $$ (PID)
Connect to your memcached host. (AWS elasticache is memcached) telnet foohost23.cs2631.0001.euw1.cache.amazonaws.com 11211 Once you're connected, find out which 'slabs...
You can use xmllint to pretty-print ugly XML files on your terminal. Just say: xmllint --format file.xml
This card shows how to upgrade a Rails 2 application from Rails 2.3.8 through every single patch level up to...
Active Record's select method allows you to make use of the power of MySQL select statements. On the one...
In order to clone a git repository including all branches and tags you need to use two parameters when cloning...
When you need to find out in which kind of spec you are during run-time, it's definitely possible...
Sometimes you need a piece of code to do something different for specs than for features. If you don't...
Sometimes you want git to ignore certain files that appear on your machine. You can do this in 3 ways...
Getting a regular expression from a string in JavaScript is quite simple: new RegExp('Hello Universe'); # => /Hello Universe/
We have often felt the pain where our models need to serve too many masters. E.g. we are adding a...
In the following example the method update_offices_people_count won't be called when office_id changes, because it...
Awesome battle report from Pinterest trying to scale their setup using different approaches. When you push something to the limit...
In specs, the session never persists but is always a new object for each request. Data put into the session...
All columns of a model's database table are automagically available through accessors on the Active Record object.
yaml4r is a juxtaposition of yaml documents and their Ruby couterpart. Thus, it does a great job as YAML-doc...
The User-Agent HTTP header identifies the client and is sent by "regular" browsers, search engine crawlers, or other web...
Ever wondered about the difference between def and define_method? Turns out there are three implicit contexts in Ruby. def...
The way Rational#to_s works on Ruby has changed from Ruby 1.9 on. Here is how to get the...