Jasmine specs for the frontend often need some DOM elements to work with. Because creating them is such a common...
Jasmine specs that work with DOM elements often leave elements in the DOM after they're done. This will leak...
tl;dr In Chrome DevTools in the Layouts tab you have handy options to debug CSS Flexbox and Grid. Including...
While in CSS zero is usually referenced without specifying a unit (e.g. padding: 0), you must not use a unitless...
When using many or very long entries of MIME-types that shoudl be gziped in gzip_types directives in nginx...
If you're frequently switching between projects, you might be annoyed by RubyMines behavior of opening the last project on...
Im Jahr 2022 ist beinahe der gesamte Traffic im Internet verschlüsselt. Das geschieht primär mit TLS. Da wir Webserver, Loadbalancer...
This can happen with a very simple model: class Note has_many :attachments end Everything looks normal: Note.all.to_a.size # => 8 Note.all.ids.size...
Large Rails projects tend to define multiple custom ways to format Dates or DateTimes. This often leads to duplicated format...
When writing a Sass function, you may run into an error message that may be confusing: @function rules may not...
tl;dr In Chrome DevTools in the Sources tab you can activate Event Listener Breakpoints for debugging events. Example
Die Elastic Compute Cloud ist ein flexibler Service, der VMs und damit zusammenhängende Komponenten wie Disks, Netzwerkgeräte, Loadbalancing, VM Images...
Einer der ältesten und beliebtesten Services von AWS ist S3. Viele Kunden nutzen nur diesen Service während ihre Infrastruktur eigentlich...
tl;dr In Chrome DevTools in the Elements tab or in Firefox in the Inspector tab you can right click...
If you use third party APT sources you might end up with unmaintained packages after removing the external source or...
Als DevOps Engineer kann es häufiger vorkommen, dass du ein lokales Testsetup bauen musst, um eine bestimmte Software oder ein...
If you're experiencing that your bundle install command fails with an error message like this, rubygems.org might...
Unpoly's [up-observe], [up-autosubmit] and [up-validate] as well as their programmatic variants up.observe() and up.autosubmit...
tl;dr Since Rails 7+ you can use ComparisonValidator for validations like greater_than, less_than, etc. on dates, numerics...
Ncdu is a disk usage analyzer with an ncurses interface. It is designed to find space hogs on a remote...
You can use ETags to allow clients to use cached responses, if your application would send the same contents as...
Here are a few common patterns that will probably lead to flaky specs. If you notice them in your specs...
tl;dr git checkout is the swiss army of git commands. If you prefer a semantically more meaningful command for...
New versions of wkhtmltopdf dissallow file:// URLs by default. You can allow them by passing --enable-local-file-access.