Here is a bash script that I use to auto-configure displays on Ubuntu 24.04 with Xorg. Background
When debugging slow SQL queries, it’s helpful to understand the database engine's query plan. Whenever you execute a...
Using ffmpeg, you can easily re-encode a video to reduce its file size. Command Do it like this:
Hint If you are using our opscomplete.com hosting we can set all environment variables mentioned below for your deployment on...
In Slack, the settings dialog only offers a fixed selection of fonts. You can use any font you like using...
This decision tree describes how to use the alt attribute of the element in various situations. For some types of...
Rails wraps your parameters into an interface called StrongParameters. In most cases, your form submits your data in a nested...
Elements can be hidden and shown by toggling the display property. However, this is not animatable, so we often turn...
The new params.expect method in Rails 8 improves parameter filtering, addressing issues with malformed input and enhancing security. It provides...
Bundler allows you to specify the name of the Gemfile you want to bundle with the BUNDLE_GEMFILE environment variable...
Also see the list of IRB commands. Switching the context Changes the "default receiver" of expressions. Can be used to...
To reverse lookup a fixture by its table name and id, use the following approach on ActiveRecord::FixtureSet: table = 'users...
Updated for selenium-webdriver 4.27 which requires options.add_option(:page_load_strategy, 'none').
Your package-lock.json should always match and resolve all packages from your package.json. Coming from Yarn, I was looking for an...
TL;DR: Rails ships two methods to convert strings to constants, constantize and safe_constantize. Neither is safe for untrusted...
In development, we store files using ActiveStorage's disk service. This means that stored files are served by your Rails...
tl;dr When a cookie includes an Expires attribute or an HTTP response includes caching headers like Expires or Cache...
In FactoryBot factories, Rails' file_fixture is not available by default. To enable it, include a support module from rspec...
Some key highlights and points from the linked article TestProf II: Factory therapy for your Ruby tests. The Problem with...
Rails slightly changed the fragment cache implementation from Rails 7.0 to Rails 7.1. Unfortunately, this is incompatible with how Haml...
Text fragments allow linking directly to a specific portion of text in a web document, without requiring the author to...
When Ruby objects are inspected in any modern IRB, some objects (like ActiveRecord instances) are rendered with neat colors and...
Capistrano 3 has a doctor task that will print information about Environment: Ruby, Rubygems and Bundler versions List of Capistrano...
Rails' fragment caching caches subtrees of an HTML document tree. While constructing that tree though, it can be really hard...