CSS fingerprinting, no JS required! CSS Fingerprinting is a technique of tracking and gathering information on site visitors.

Dependency injection is an essential tool when it comes to making code more testable. This week, let's take a look at a dependency injection technique that lets us enable testability without forcing us to write massive initializers or complicated dependency management code.

When creating collections of objects or values in Swift, we usually use data structures provided by the standard library - such as Array, Dictionary and Set. While those three cover most use cases, sometimes creating a custom wrapper collection can enable us to make our code more predictable and less prone to errors.

The Codable protocols are one of the coolest recent additions to Swift. Even though it works similarly to its community counterparts like Unbox, Codable has the advantage of being powered by the compiler. One of my favorite features in Unbox was to give a context to the decoding operation. Let's take a look at how we can achieve the same with Codable and how I use to power a type-erased Decodable type.