Guide how to make fixes in other people's GitHub repositories. It's basically "Open Source Development 101".
Google Chrome saves your profile data in ~/.config/google-chrome. To transfer the profile to for example a system you have setup...
When you use heredoc, string interpolation is enabled by default: x = "Universe" <<-MESSAGE Hello #{x} MESSAGE # => "Hello Universe"
Sometimes it seems a favicon does not work because your browser displays an old version or (in case of local...
TL;DR: You should generally use #size to count associated records. size Counts already loaded elements If the association is...
Here is a hacky way to load dumps directly from the source server, without fully copying them over and extracting...
When MySQL refuses to use your index, there's a number of things that you may be doing wrong. One...
Given you use Capistrano together with bundler to automatically install your gems when deploying. I recently had the problem that...
Good collection of crash-course articles about founding a start up, getting funded, validating ideas, etc.
tl;dr: Do not use merge! for session hashes. Use update instead. Outline Let's assume you're modifying the...
Safari & Chrome Use $x() in your console: $x('//span') # selects all span elements Firefox There's an add-on.
JavaScript has no built-in functions to compare two objects or arrays for equality of their contained values.
Watch out when saying something like 1.year in Rails. The result is not a Fixnum and can cause unexpected errors...
You might get the following error: Unable to initialize. Make sure the daemon is running. Error: Process /usr/lib/sflphone/sflphoned exited with...
Mozilla has announced that, starting with Firefox 22, the popular open source web browser will begin blocking third-party cookies...
In Ruby 1.9, instance_eval calls the block the with receiver as the first argument: In Ruby 1.8, receiver.instance_eval...
MongoMapper is a MongoDB adapter for Ruby. We've forked it so it works for Rails 2.3.x applications running...
Ruby 1.9 changed the default behavior of Module.const_defined? from what it was in Ruby 1.8 -- this can be especially...
If you open a pop-up window [1] in your Selenium tests and you want to close it, you can...
See attached link for a way to extract the conditions of a named scope in Rails 2.3.
Rails 2.3.16+ on Ruby 1.9 causes warnings like this: .../gems/activesupport-2.3.17/lib/active_support/core_ext/string/output_safety.rb:22: warning: regexp match /.../n against to UTF-8 string...
So you have a method returning a regular expression but one case that should not yield a matching Regexp object...
If you need to capture signatures on an IPad or similar device, you can use Thomas J Bradley's excellent...