I recently stumbled over a problem that my feature tests broke in CI because of a mismatching chromedriver version.
View specs are a powerful tool to test several rendering paths by their cases instead of using a more costing...
Besides Plotting graphs in Ruby with Gruff, which comes handy for many uses cases, you sometimes might need configuration for...
For my computer science bachelor's thesis I programmed and evaluated a CLI Test Case Prioritization (TCP) tool for makandra...
The git doc states on the difference of these two commands: git-restore[1] is about restoring files in the...
In the linked page, Manuel Matuzović offers an FAQ regarding web components, and their accessibility in particular.
Rails offers several methods to manage three types of different cookies along with a session storage for cookies. These...
Note: You won't need this for single lines of text. In this case it is better to just use...
Git log offers useful options for filtering. This card provides a short overview. By message Only commits that include a...
Intel CPUs receive updates, including security relevant upgrades, through 2 channels: Firmware/UEFI BIOS updates can also update the microcode in...
Web forms can be made much more usable with a few HTML attributes. Short summary: type: Tells browsers about the...
Context and further resources Even though you can get 90% of debugging done with up to 5 basic byebug commands...
Haml 6 was a major rewrite with performance in mind. To achieve a performance improvement of 1.7x, some design...
Rails offers the fresh_when method to automatically compute an ETag from the given record, array of records or scope...
This is a checklist I use to work on issues. For this purpose I extracted several cards related to the...
In the past we validate and set default values for boolean attributes in Rails and not the database itself.
Variable fonts are popular for two reasons: they expand design possibilities and improve website performance. While the former statement is...
Was ist DynamoDB und für was kann man es einsetzen? In eine DynamoDB Tabelle werden ständig neue Daten geschrieben...
Erkläre den Unterschied zwischen SSM Parameter Store, Secrets Manager und CloudHSM Für was kann AWS WAF und Shield eingesetzt...
Hat man mehrere Cloud Platformen und OnPremise Systeme, müssen diese unter Umständen miteinander verbunden werden. Amazon bietet eine Auswahl an...
Webseiten und Applikationen, die auch häufig international verwendet werden, können von einem CDN profitieren. Cloudfront ist auch nützlich, wenn eine...
Insbesondere kleine Applikationen oder einzelne Aufgaben können mit sogenannten "Serverless" Funktionen gut bereitgestellt werden. Dabei ist keinerlei Infrastruktur zu verwalten...
Hat man wechselnde Lastzustände für seine Applikation und möchte Geld einsparen, kann man seine Applikation und die Infrastruktur so designen...
Verteilte und dynamisch skalierte Anwendungen benötigen gemeinsamen Speicher. Nicht immer ist ein Object Store wie S3 dafür optimal. Beispielsweise weil...