Rails offers several methods to manage three types of different cookies along with a session storage for cookies. These...
If you want to collapse/expand elements with dynamic content (and thus unknown height), you can not transition between height: 0...
Note: You won't need this for single lines of text. In this case it is better to just use...
Git log offers useful options for filtering. This card provides a short overview. By message Only commits that include a...
Sometimes you'll find yourself with a set of tasks that require similar code for different models. For example, if...
When you write your next CarrierWave uploader, consider processing your images with libvips instead of ImageMagick. Reasons for libvips
Ctrl + Alt + S > search "rubocop on save" Under "Inspections", check the highlighted box on rubocop -a Caveat: This adds a...
When RubyMine reports Rubocop returning "exit code -1", upgrading Rubocop can be the fix: gem install rubocop "The logs" can...
alias_method makes a copy of a method. This works fine until the same method is overridden using prepend. If...
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 gems in the Gemfile. Since...
Git commands like diff use the less binary for their output representation. I often find myself searching for strings like...
Code splitting is a feature of esbuild that can keep huge libraries out of the main bundle. How code splitting...
You can use rake --where task to find the source location that defines task: bundle exec rake --where assets:precompile...
With this Ruby script you can print all values in a Redis database to your console (derived from this bash...
Context and further resources Even though you can get 90% of debugging done with up to 5 basic byebug commands...
I recently noticed that better_errors allows you to to open files from within your favorite editor. However it was...
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...
tl;dr asdf allows you to manage multiple runtime versions with a single CLI tool and is backwards compatible by...
tl;dr The strict-dynamic source list keyword allows you to simplify your CSP policy by favoring hashes and nonces...
In Ruby on Rails ActiveRecord::Relation#merge overwrites existing conditions on the same column. This may cause the relation to...
If you want to to create maps within SASS/SCSS-files, it normally works like this: $some-map: (key1: value1, key2: value2...