Regular Expression Tester with highlighting for Swift Regex. Quickly test and debug your regex and Regex Builder.

Gui Rambo writes about his coding and reverse engineering adventures.

Existentials in Swift are defined using the any keyword and provide dynamic types, but also come with performance impact you should know.

In this post, let’s take a look at how to resize images in UIKit & AppKit. The result will work on iOS, macOS, tvOS & watchOS and...

VIP design pattern (or Clean Swift) was first mentioned by Raymond Law, whose ultimate goal is to write clean and testable code. We can…

Task view modifier is the key to the Swift Concurrency world through SwiftUI. It allows us to build complex async tasks by leveraging the power of cooperative cancellation and the lifecycle of a SwiftUI view. This week we will learn all the powerful features…

Learn how to use Swift concurrency’s AsyncSequence and AsyncStream protocols to process asynchronous sequences.

Recreating cool UI demos I've seen online. This time, morphing between different icon shapes and learning about metaballs.

How to setup Xcode to build a Metal Shader for use with a custom CoreImage Kernel

The Composable Architecture’s fundamental unit of effect is modeled on Combine publishers because it was the simplest and most modern asynchrony tool available at the time. Now Swift has native concurrency tools, and so we want to make use of those tools…

User activities and SwiftUI never really fit like a glove, but regardless they are key for state restoration. Luckily, SwiftUI has a little trick to make the process pragmatic and type safe.

Kuba Suder's blog on Mac & iOS development

Read about how to test error throwing code that exists in actors asynchronously and what to look out for smooth testing.

Oh geez. Writing is really on the wall.

Whenever you enter an address into Google Maps or search for a video on YouTube, you may have noticed that the auto-complete suggestions update at regular intervals rather than with every change to the search query.

When you consider the scale of these platforms…

With improvements in Swift 5.7, achieving dynamic dispatch on a protocol with associated types has never been easier. Here's how.

Everything you need to know about code reflection in Swift. Learn how to get private properties values and more! Use it now the Mirror API.

A tour of the new SwiftUI preview canvas in Xcode 14.