When RubyMine reports Rubocop returning "exit code -1", upgrading Rubocop can be the fix: gem install rubocop "The logs" can...

We have a long-standing checklist for merge requests. However, it hardly matches the intricate requirements for design. This checklist...

Splitting up commits makes the process of reviewing often easier, since you can create several merge requests or review every...

It most cases it's not necessary to add a version constraint next to your packages in the package.json. Since...

It most cases it's not necessary to add a version constraint next to your gems in the Gemfile. Since...

If you have a fully functional CI pipeline but no CD, you might find yourself frequently waiting for CI (with...

Code splitting is a feature of esbuild that can keep huge libraries out of the main bundle. How code splitting...

Within Vim do the following: Move cursor to the first starting line where you want to start editing

With this Ruby script you can print all values in a Redis database to your console (derived from this bash...

Web forms can be made much more usable with a few HTML attributes. Short summary: type: Tells browsers about the...

Context and further resources Even though you can get 90% of debugging done with up to 5 basic byebug commands...

Debugging your integration tests, that run a headless Chrome inside a docker image, is tricky. In many cases you can...

Looking at the source code of the validates_numericality_of validator, it becomes clear that it converts the attribute in...

When you allow file uploads in your app, a user might upload content that hurts other users. Our primary concern...

Every Rails response has a default ETag header. In theory this would enable caching for multiple requests to the same...

In Ruby on Rails ActiveRecord::Relation#merge overwrites existing conditions on the same column. This may cause the relation to...

The linked content describes: The different color space of Oklch and RGB/HSL (HDR colors) The advantage of Oklch when you...

I found the linked article very helpful to refresh my understanding of database indexes. As a small bonus, it includes...

Haml 6 was a major rewrite with performance in mind. To achieve a performance improvement of 1.7x, some design...

Usually you add errors to :base in ActiveRecord, in case no appropriate attribute could be used to add the error...

Maintaining larger projects makes it more difficult to balance refactoring and upgrade tasks according to its actual value. Consider to...

Let's say we have posts with an attribute title that is mandatory. Our example feature request is to tag...

Rails Active Support provides some helpful methods for calculating times and dates, like Duration#ago or Duration#from...

By activating strict_loading you force developers to address n+1 queries by preloading all associations used in the index...