Sometimes you have a test expectation but actually want a better error message in case of a failure. Here is...
If your terminal has many tabs, you'll want to keep them organized. To change their title from the prompt...
I had a huge MySQL dump that took forever (as in: days) to import, while I actually just wanted to...
You might sometimes use self to capture the context of this before it is destroyed by some function. Unfortunately self...
"CronMaker is a utility which helps you to build cron expressions." Check it out at http://www.cronmaker.com/.
Sometimes you need to monitor a connection from your machine to a specific, single host or network in order to...
Awesome Sass plugin to experiment with Subtle Patterns based textures. It automatically removes the base color from the pattern, leaving...
So you client has asked you to implement a row of buttons to like the URL on Facebook, Twitter and...
When two elements with display: inline-block are sitting next to each other, whitespace between becomes a space character.
$RANDOM on bash returns a random integer between 0 and 32767. echo $RANDOM 9816 echo $RANDOM 30922
Using CSS sprites for background images is a technique for optimizing page load time by combining smaller images into a...
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...
This card shows how to upgrade a Rails 2 application from Rails 2.3.8 through every single patch level up to...
Here is a good explanation for zombie processes. Quote: If you have zombie processes it means those zombies have not...
Back in the old days, we couldn't do something like that: .foo { position: absolute; bottom: 0; /* This was bad...
Awesome battle report from Pinterest trying to scale their setup using different approaches. When you push something to the limit...
When you use ab to do some performance benchmarking, you might run into output like this: Complete requests: 200
Find out in this short guide, how to horizontally center a absolute positioned container with CSS. Note: We have a...
The way Rational#to_s works on Ruby has changed from Ruby 1.9 on. Here is how to get the...
In Ruby 1.9, instance_eval calls the block the with receiver as the first argument: In Ruby 1.8, receiver.instance_eval...
So you want to find out how many horizontal pixels you have available on a mobile device. This is super...
If you use Tempfile and pass your own filename containing an extension, it will just be consumed by the Tempfile...
li.active a:link Example output (specificity): | 0 | 2 | 2 | See also: https://www.codecaptain.io/tools/css-specificity-calculator
When you have a Pull Request on GitHub that includes commits from another Pull Request, you will still see them...