As we are slowly switching from Cucumber scenarios to RSpec feature specs, you might be tempted to write assertions like...
With this Ruby script you can print all values in a Redis database to your console (derived from this bash...
Web forms can be made much more usable with a few HTML attributes. Short summary: type: Tells browsers about the...
When using tmux, selecting and copying multiple lines of text can be a hassle, especially when using splits (highlighting lines...
Context and further resources Even though you can get 90% of debugging done with up to 5 basic byebug commands...
I recently noticed that better_errors allows you to to open files from within your favorite editor. However it was...
Debugging your integration tests, that run a headless Chrome inside a docker image, is tricky. In many cases you can...
It is possible to manipulate the forwarded ports of an established interactive SSH session. This is done by opening the...
The rubocop binary has a few interesting flags: rubocop (using the --parallel default ) scans the current repository for linting issues...
When you allow file uploads in your app, a user might upload content that hurts other users. Our primary concern...
Every Rails response has a default ETag header. In theory this would enable caching for multiple requests to the same...
tl;dr asdf allows you to manage multiple runtime versions with a single CLI tool and is backwards compatible by...
If your irb or rails console keeps randomly crashing and you can't figure out why then you can try...
Sidekiq 7 adds a new feature called capsules. Use cases: a chrome queue limited to 1 for e.g. PDF processing...
If you want to to create maps within SASS/SCSS-files, it normally works like this: $some-map: (key1: value1, key2: value2...
To navigate between test and test subject Rubymine requires you to set the test root sources as Test Sources Root...
A lot of web applications require being called over https, which is a good thing. It's possible to configure...
In dieser Card machst du einige Übungsaufgaben um Linux Server mit Ansible zu verwalten. Da es vermutlich zu aufwendig ist...
You can add this function to your .bashrc (or the configuration file of the shell your using instead): man() {
When a nginx reverse proxy complains about upstreams sending too big headers, tweaking the buffers responsibly can help to prevent...
If you use a newer SSH key generated with the ED25519 algorithm instead of RSA (see Create a new SSH...
Rails partials have a lot of "hidden" features and this card describes some non-obvious usages of Rails Partials.
Sometimes I ran across a GitHub merge request of a gem where it was not completely obvious in which version...
Du verstehst, warum man Healthchecks u.ä. haben möchte. Du weißt auch, dass solche Checks nicht exklusiv für Kubernetes...