The linked content describes: The different color space of Oklch and RGB/HSL (HDR colors) The advantage of Oklch when you...
To navigate between test and test subject Rubymine requires you to set the test root sources as Test Sources Root...
A severe bug was found in ImageMagick by Bryan Gonzalez from Ocelot Team. It allows to embed the content of...
Mit SQL spricht man mit relationalen Datenbanken. Ziele Verstehe die folgenden SQL Befehle SELECT WHERE ORDER INNER JOIN, LEFT JOIN...
When changing glibc versions, it's possible to end up with corrupt indexes in PostgreSQL. Are My Indexes Affected?
tl;dr git checkout is the swiss army of git commands. If you prefer a semantically more meaningful command for...
tl;dr Since Rails 6.1+ you can use .compact_blank or .compact_blank! to remove blank values from collections (e.g...
tl;dr With ES2021 you now can use str.replaceAll(), Promise.any(), logical assignment operators, numeric separators and WeakRef on all major...
Wir wollen im Detail verstehen, wie in Unix-Systemen Prozesse gehandhabt werden und wie wir Prozesse aus dem Userland behandeln...
Schau dir den unter Inhalte verlinkten Udemy Kurs an. Die Zugangsdaten für Udemy bekommst Du von deinem Mentor. Überspring Inhalte...
You want to deploy new features but the latest commits are not ready for production? Then use git merge master...
Since GitLab 10.3. you can use Mermaid in GitLab comments: Gitlab Doc. With Mermaid you can create diagrams based on...
This RailsCast demonstrated a very convenient method to activate VCR for a spec by simply tagging it with :vcr.
The tree command will show you the contents of a directory and all its sub directories as a tree:
We had a card that described how to install multiple mysql versions using mysql-sandbox. Nowadays with the wide adoption...
The rubygems binary gem allows to extract a local gem with gem unpack GEMNAME. For more details see the official...
In Ruby (almost) everything is an Object. While this enables a lot of powerful features, this concept might be confusing...
There are several tools for DNS debugging which offer you more or less information. Most of the time the more...
I just finished migrating a project from the Asset Pipeline to Webpacker, this is what my diff to master looks...
Whenever requires you to set the application attribute in your Capistrano configuration. Otherwise your cronjobs are created multiple times.
Sometimes you want to find the inverse of an ActiveRecord scope. Depending on what you want to achieve, this is...
Installing old Rubies (<= 2.3) with a standard rbenv + ruby-build is no longer possible on Ubuntu 20.04. This is because...
If you render markdown from user input, an attacker might be able to use this to inject javascript code into...
Embedding videos on a website is very easy, add a tag to your source code and it just works...