Mornings can be rough. To make them a little easier, leave yourself a failing test if your work isn’t...
After I upgraded to Mac OS X Mavericks, I regularly got this error message when running Cucumber features with Selenium...
Warning: Because of (unclear) rounding issues and missing decimal places (see examples below), do NOT use this when dealing with...
If you get this error while trying to resize an openstack instance: # nova resize fooinstance 16 --poll ==> /var/log/nova/nova-scheduler.log <==
If you recorded a bad fix for a conflict, you can tell git to forget that bad resolution:
Non-static elements will not inherit their parent's opacity in IE for no good reason. This can lead to...
Alternative approach to form models.
Rails 4.0 introduced a helpful new method for ActiveRecord queries: where.not. It can make clunky queries easier to read.
Introducing Trailer from HouseTrip, a simple menu bar app that helps you manage your GitHub pull requests. It’s one...
If you want to switch to another ruby versions, you have several options, depending on what you want: Do you...
Crazy hack. Might be useful one day. The code required has since been extracted into a library.
Colorizes code in LibreOffice Writer. Note that you need to create a paragraph style _code for this to work.
Publish/subscribe for Ruby classes. Bonus: You do not have to declare events before using them.
If your terminal has many tabs, you'll want to keep them organized. To change their title from the prompt...
Clever hack to allow user interaction without Javascript (by using radio buttons and selecting on :checked).
I had a huge MySQL dump that took forever (as in: days) to import, while I actually just wanted to...
There seems to be no way to use therubyracer -v '0.11.4' and libv8 -v '3.11.8.17' on OS X Mavericks.
pngquant is a command-line utility and a library for converting 24/32-bit PNG images to paletted (8-bit) PNGs.
A MySQL DECIMAL column is used when it is important to preserve exact precision. It takes two parameters, where...
Rbenv won't compile REE 2011.03 properly on Ubuntu 12.04, failing with an error in tcmalloc.cc. If you want to...
You might sometimes use self to capture the context of this before it is destroyed by some function. Unfortunately self...
We have released Modularity 2. It has many incompatible changes. See below for a script to migrate your applications automatically...
If you want to test that a certain text is contained within the document title of your page, you can...
When you do something like this in your code: def var_value @var ||= some_expensive_calculation end