Tod is a gem for working with daytimes. That's a tuple of (hour, minute second) without a day, month...
When doing some meta-programming magic and you want to do something for all attributes of a class, you may...
This is a short overview of things that are required to upgrade a project from the Asset Pipeline to Webpacker...
Many mail clients do not support external style sheets. Some even require all styling inline, which means you'll have...
While deploying an Ruby update to an old application these days, we encountered the following misleading error: *** [err :: some-host.makandra.de] You...
Rails' ActiveSupport::TimeWithZone objects have both a timezone code and offset, e.g. Thu, 28 Mar 2019 16:00:00 CET...
We forked trusty memoizer to make two changes: Memoized methods now preserve their arity. Previously all memoized methods had an...
Bundler 2 requires at least Ruby 2.3.0 and RubyGems 2.5.0. You might get the following error when you try to...
I had this error: > gem install bundler Successfully installed bundler-2.0.1 1 gem installed > bundle install Traceback (most recent call...
If your app does not need to support IE11, you can use most ES6 features without a build step. Just...
Suggested Workflow Set the ruby version in .ruby-version to 2.3.5, then perform these steps one by one, fixing errors...
When doing Basic Authentication, your browser will send an "Authorization" header. Its value is simply a Base64-encoded representation of...
In ruby you can easily read and write CSVs with the standard CSV library class. On top of this, you...
When upgrading Rails versions -- especially major versions -- you will run into a lot of unique issues, depending on the exact...
The Ace editor is a great enhancement when you want users to supply some kind of code (HTML, JavaScript, Ruby...
When projects run for many years, they require special regular maintenance to stay fresh. This kind of maintenance is usually...
If your Rubymine does not recognize a file type correctly although you have entered the unmistakeable file extension like material_orders_controller.rb...
The exception_notification gem supports to provide custom data to e.g. the fail mail within foreground or background jobs. ExceptionNotifier.notify...
Deployment ready for Opscomplete Copying view and controller templates over to target application during basics configuration or via...
Accessing pseudo elements via JavaScript or jQuery is often painful/impossible. However, accessing their styles is fairly simple. Using getComputedStyle
Percent Notation We already know that that we can create strings using the percent notation: %(<foo="bar's ton">) is...
Rubymine 2024.3 bundles Grazie Lite by default. You need to enabled "German" under Settings/Preferences | Editor | Natural Languages.
Starting with Ruby 2.0 you can define methods with keyword arguments. In 2.1+ required keyword arguments can be defined by...
When debugging your application, you will come across objects created by some gem or framework. You don't have the...