If you need to modify (e.g. add 2px) a Sass variable that defines multiple values as one (e.g. for short...
Ruby's __FILE__ keyword returns the path to the current file. On popular for this are Ruby binaries: #!/usr/bin/env ruby...
When you're nesting setTimeout(f, 0) calls, your browser will silently increase the delay to 5 milliseconds after the...
Hint You're not able to control which redis replica will chosen for the failover. Connect to your sentinel instance...
We're using Middleman for some static sites like our blog. Despite being very similar to Rails, Middleman does not...
Piwik is the leading open-source analytics platform. As such, it is an alternative to Google Analytics. Since it is...
When your controller action raises an unhandled exception, Rails will look at the exception's class and choose an appropriate...
Resources Rails Guide: Internationalization API Guide to localizing a Rails application Locale-aware helpers in ActionView::Helpers::NumberHelper
PostgreSQL, unlike MySQL, treats strings as case sensitive in all circumstances. This includes comparison with = and LIKE collision detection in...
Is your application doing something expensive every few seconds? Maybe an animated slider that rotates images? Maybe you are updating...
Here is a symbol of an eight note: ♪ Its two-byte hex representation is 0x266A. This card describes how to...
By convention, common protocols use a defined port, like 80 for HTTP or 443 for HTTPS. You can use nmap...
For some years Google Chrome has allowed you to add desktop icon for any web page by going to Tools...
When building a web application, one is tempted to claim it "done" too early. Make sure you check this list...
Because systemd is the greatest thing ever it's not enough to stop the libvirt service. You need to disable...
So you downloaded a theme for Chrome a while ago and don't remember which one it is?
...The and tags both come with some non-default behavior that you know from other tags.
The default Google Analytics might not work as expected with your Unpoly app. This is because your app only has...
You can define methods using def or define_method. In the real world, there is no performance difference.
Apparently you can pash a second scope to a hash-condition and the whole thing will be evaluated as a...
I had an issue with icons from an icon font aligning differently on Linux, iOS and Windows (seemingly browser-independent...
The Codeless Code is a charming series of stories about monks and nuns at a programming monastery. Some stories to...
This is quite an edge case, and appears like a bug in Rails (4.2.6) to me. Update: This is now...
Note: This applies to plain Ruby scripts, Rails does not have this issue. When you work with Ruby strings, those...