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CASL (pronounced /ˈkæsəl/, like castle) is an isomorphic authorization JavaScript library which restricts what resources a given client is allowed to access. It's designed to be incrementally adoptable and can easily scale between a simple claim based and fully featured subject and attribute based authorization. It makes it easy to manage and share permissions across UI components, API services, and database queries.

The Danger of Dark Patterns (With Infographic)

Are manipulative design techniques undermining your product and leading users to make bad decisions? Here’s how to avoid dark patterns and create ethical products that enhance customer trust.

Dark patterns are a popular design topic but defining them can be difficult. That’s because they’ve become so prevalent that many have been adopted as design conventions. It’s crucial to understand these manipulative techniques in order to create ethical products that enhance customer trust.

DevOps: Shift Left to Reduce Failure

The term “shift left” refers to a practice in software development in which teams focus on quality, work on problem prevention instead of detection, and begin testing earlier than ever before. The goal is to increase quality, shorten long test cycles and reduce the possibility of unpleasant surprises at the end of the development cycle—or, worse, in production.

Does varchar(n) use less disk space than varchar() or text?

Tl;DR: No. This is a recurrent doubt due to a real difference in many other database systems. But not for PostgreSQL. Although documentation explains that internally, the core system has a wise way to split and store string data internally instead of simply reserving the total space, it is hard to believe. Here we have proof that there is no real difference.

How to ease the pains of testing legacy code?

Practically every programmer in their career struggled with working on a legacy project or one in which at least part of the job involved some kind of legacy code. I will show you some tips and tricks which will make writing unit tests for legacy applications much easier and less hurtful. Let’s go deep into testing legacy code!

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