Non-static elements will not inherit their parent's opacity in IE for no good reason. This can lead to...
Rails 4.0 introduced a helpful new method for ActiveRecord queries: where.not. It can make clunky queries easier to read.
If you want to switch to another ruby versions, you have several options, depending on what you want: Do you...
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.
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...
In /etc/rc.local add: service bluetooth stop
When you do something like this in your code: def var_value @var ||= some_expensive_calculation end
Icons Sizes for Windows, MacOS X, iOS, Android and Linux. It's a mess!
Give the table a style table-layout: fixed Give the cells in the first row a width The same width...
Opal is a source to source ruby to javascript compiler, corelib and a runtime implementation that currently passes 3000 rubyspecs...
If you have a FooController and also have a layout app/views/layouts/foo.html, Rails will use this without being told so.
TLDR: This card explains which threads and processes interact with each other when you run a Selenium test with Capybara...
tl;dr: Using has_many associations with a :through option can lead to lost or duplicate records. You should avoid...
On recent/fresh installations of Ruby 1.8.7 you may encounter this error why calling any bundled binary (or just bundle exec...
If you have multiple monitors and want to share a given screen with your call partner, drag the caller window...