git --fixup is very handy to amend a change to a previous commit. You can then autosquash your commits with...
Ruby lets you re-use existing RegExp objects by interpolating it into new patterns: locales_pattern = /de|en|fr|es/i...
With cd .. you can navigate one directory up from the one you are at now. If you use that a...
There is an option you can set so that when using the cd command, small typos are automatically corrected. Add...
It is generally discouraged to load your JavaScript by a tag in the : The reason is that a tag will pause the DOM parser until the script has loaded and executed. This will delay the browser's first contentful paint. A much better default is to load your scripts with a tag: A deferred script has many...
Formerly 301 (Moved Permanently) and 302 (Found) were used for redirecting. Browsers did implement them in different ways, so since...
If you are using scrum in a project you might be familiar with planning poker, a playful way to agree...
The Node Version Manager allows installing multiple NodeJS versions and switching between them. By default, it does not automatically switch...
The linked article points out that COUNT queries might be unexpectedly slow in PostgreSQL. If you just need to know...
When testing JavaScript functionality in Selenium (E2E), you may need to access a class or function inside of a evaluate...
Matching the "space" character class For matching whitespaces in a regular expression, the most common and best-known shorthand expression...
rspec >= 3.1 brings a method and_wrap_original. It seems a bit complicated at first, but there are use cases...
When deleting a record in your Rails app, Carrierwave automatically takes care of removing all associated files. However, the file...
This card is a general reminder to avoid the short version of a command option in shared code. It's...
If a project ist configured to spawn CI runners for tests or deployment when pushing to the Repo, a habit...
To attach files to your records, you will need a new database column representing the filename of the file...
The attached article examines what the percent unit (%) is relative to in CSS The article does a great job of...
When your Rails application server raises error, Capybara will fail your test when it clears the session after the last...
When your application is open for public sign up and sends out transactional e-mails to a large number of...
You can use git worktree to manage multiple working trees attached to the same repository. But why should I use...
When you repeat a subpattern with a *, + or {...} operator, you may choose between greedy, lazy and possessive modes. Switching modes...
bundle outdated [--filter-major|--filter-minor|--filter-patch] Example output for bundle outdated --filter-major Other examples
Insomnia is a GUI tool to help you communicating with an API. There are also other tools to do this...
By default, your terminal emulator (Gnome Terminal, Terminator, etc.) sets some kind of window title to reflect the shell type...