When writing Rails migrations to convert a string column to an integer you'd usually say: change_column :table_name...
Using text-transform: uppercase - especially on form labels - can cause you serious headaches in Selenium tests. Sometimes the web driver...
Do not use .rvmrc files to specify Ruby version and gemset configuration any longer, it's deprecated and not considered...
We sometimes send calender data or tasks using iCalendar (ICS) via eMail as specified in RFC 5545. Recently, a customer...
In contrast to RSpec's included allow_value matcher, the attached matcher will also work on associations, which makes it...
When two elements with display: inline-block are sitting next to each other, whitespace between becomes a space character.
In order to keep the controllers directory tidy, we recently started to namespace controllers. With the :controller option you can...
I had some problems with Git and the file spec/fixtures/ČeskýÁČĎÉĚÍŇÓŘŠŤÚŮÝŽáčďéěíňóřšťúůýž. After pulling the latest commits, it would show that...
When two classes implement the same behavior (methods, callbacks, etc.), you should extract that behavior into a trait or module...
Custom matchers are a useful RSpec feature which you can use to DRY up repetitive expectations in your specs. Unfortunately...
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...