The Truemail gem (not to be confused with truemail.io) allows validating email addresses, e.g. when users enter them into a...
When testing with Cucumber / Caypbara, iframes are ignored, so you can't interact with them. To interact with your iframe...
Headless Chrome is a way to run the Chrome browser without a visible window. Configuring Capybara Configure the Capybara driver...
Whenever requires you to set the application attribute in your Capistrano configuration. Otherwise your cronjobs are created multiple times.
This is an informational site about video and how it works. We started by talking about Playback, next we added...
Using Ruby 1.8.7 you will not be able to use the maximum versions Rubygems 1.8.30 and Bundler 1.17.3 with https://...
Feature Queries (Edge 12+): Similar to @media queries, @supports blocks can be scoped to browsers that support a given declaration...
When deploying a Rails application that is using Webpacker and Capistrano, there are a few configuration tweaks that optimize the...
Sometimes you accidentally generate entries in the bash history that you do not want to have there (e.g. commands with...
IRB 1.2 (shipped with Ruby 2.7, but works on 2.5+) brings pretty syntax highlighting and multiline cursor navigation. However, pasting...
This card is mainly an explanation how variable fonts work in CSS, not necessarily a recommendation to actually use them...
Git diffs show the surrounding contexts for diff hunks. It does so by applying regular expressions to find the beginning...
Minidusen lets you find text in associated records. Assume the following model where a Contact record may be associated with...
If you have installed Rubocop in your project, RubyMine can show you Rubocop violations immediately in your editor. You probably...
You need to install the official plugin, it is not bundled with RubyMine by default. Example: Setup a watcher...
Terminator has a cool feature that allows you to split your terminal into many panels and type in all of...
Scroll and touch event listeners tend to be computationally expensive as they are triggered very often. Every time the event...
Here is a short summary of Cucumber hooks in Ruby taken from https://github.com/cucumber/cucumber-ruby. Note that the BeforeStep is...
Sometimes you want to find the inverse of an ActiveRecord scope. Depending on what you want to achieve, this is...
Ubuntu 18.04 uses systemd to manage services. There are basically two commands for listing all services and manipulating the state...
We currently test most of our gems on Travis CI, but want to migrate those tests to Github Actions. This...
If you're experiencing problems with your Google Chrome installation after an update, it might help downgrading Chrome to check...
Installing old Rubies (<= 2.3) with a standard rbenv + ruby-build is no longer possible on Ubuntu 20.04. This is because...
When loading a database dump created with pg_dump into your database, you might run into an error like