Wir arbeiten bei makandra alle auf Linux-Betriebssystemen und bedienen im DevOps- & Cloud-Bereich primär Kunden, die ebenfalls auf Linux...

Building application assets with esbuild is the new way to do it, and it's great, especially in combination with...

Attaching files to a field that is handled by Carrierwave uploaders (or maybe any other attachment solution for Rails) in...

Jasmine is a great tool to unit test your JavaScript components without writing an expensive end-to-end test for...

Resources RubyGuides: Mastering Ruby Regular Expressions Using regular expressions in JavaScript Testing regular expressions visually Regular Expressions: Quantifier modes...

JavaScript code can access and manipulate the browser's DOM tree. Using JavaScript we can add interactive behavior to our...

Sometimes you need to access a dev server running on localhost from another machine that is not part of the...

RSpec Rails can automatically mix in different behaviors to your tests based on their type tag, for example enabling you...

Proxy caching is a good feature to serve your publicly visible application content faster and reduce load on your servers...

Rack::SteadyETag is a Rack middleware that generates the same default ETag for responses that only differ in CSRF tokens...

Elasticsearch defaults to go into readonly mode when you run low on disk space (< 95%). You might then see an...

Some users might use Adblock Plus or similar browser plugins to reduce the number of ads displayed. If you run...

A flaky test is a test that is often green, but sometimes red. It may only fail on some PCs...

If you want Sidekiq to be able to talk to Redis on staging and production servers, you need to add...

Basic validations Read the Rails Guide on ActiveRecord Validations. You should have an overview which kinds of validations are built...

Within development and test environments, Rails is usually configured to show a detailed debug page instead of 404s. However, there...

This RailsCast demonstrated a very convenient method to activate VCR for a spec by simply tagging it with :vcr.

Bookmarks for directories will be most helpful if you are forced to work in deeply nested projects. Then it's...

With cd .. you can navigate one directory up from the one you are at now. If you use that a...

Rails has the handy controller method send_file which lets us download files easily. We can decide whether the file...

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...

If you want to expand your Areca Raid by swapping out the disks for larger ones you will need to...

It seems like changing the HTTP_ACCEPT_LANGUAGE is not possible for a headless chrome. On Ubuntu the headless Chrome...