tl;dr asdf allows you to manage multiple runtime versions with a single CLI tool and is backwards compatible by...

You have an async function that rejects: async function failingFunction() { throw new Error("Something went wrong") } When you call that...

We recently encountered a problem with GlusterFS (7.x) when an application used the flock syscall on a GlusterFS path...

makandra dev
content-security-policy.com

tl;dr The strict-dynamic source list keyword allows you to simplify your CSP policy by favoring hashes and nonces...

Sidekiq 7 adds a new feature called capsules. Use cases: a chrome queue limited to 1 for e.g. PDF processing...

blog.mastermind.dev

I found the linked article very helpful to refresh my understanding of database indexes. As a small bonus, it includes...

To navigate between test and test subject Rubymine requires you to set the test root sources as Test Sources Root...

Haml 6 was a major rewrite with performance in mind. To achieve a performance improvement of 1.7x, some design...

If you're using a Redis cache in Rails (e.g. :redis_cache_store), it's possible to configure additional parameters...

Capybara has a variety of finder methods like find_button to help you look up DOM elements. There are also...

Usually you add errors to :base in ActiveRecord, in case no appropriate attribute could be used to add the error...

Maintaining larger projects makes it more difficult to balance refactoring and upgrade tasks according to its actual value. Consider to...

When you use native smooth scrolling there is no built-in method to detect the end of the scrolling animation...

Let's say we have posts with an attribute title that is mandatory. Our example feature request is to tag...

By default most exceptions in Rails will render a 500 error page and will create a new issue in your...

A lot of web applications require being called over https, which is a good thing. It's possible to configure...

Rails Active Support provides some helpful methods for calculating times and dates, like Duration#ago or Duration#from...

By activating strict_loading you force developers to address n+1 queries by preloading all associations used in the index...

Testing your responses in Rails allows to parse the body depending on the response MIME type with parsed_body.

ruby-doc.org

We will achieve this by creating a block accepting method to optionally create and then lock a .lock File of...

SASS has an @extend keyword to inherit styles. .alert color: red &.-framed border: 1px solid red padding: 5px &.-homepage

The terraform documentation states the...

...syntax as (grouping mode*. See: Grouping-Results). But this seems not the be the whole...

DevOps Curriculum

In dieser Card machst du einige Übungsaufgaben um Linux Server mit Ansible zu verwalten. Da es vermutlich zu aufwendig ist...

The change_column method for rails migrations support casting with a custom SQL statement. This allows us to change a...