Swift Weekly - Issue #170

Javier writes about alignment guides in SwiftUI and gives a very detailed explanation how exactly they work.

Protocols are, without a doubt, a major part of Swift’s overall design. However, they also come with their own set of downsides and trade-offs. John Sundell takes a look at some of those characteristics, and explore a few alternative ways of abstracting code in Swift — to see how they compare to using protocols.

Simon Ljungberg writes about a publisher pattern using Combine in your own classes when a delegate isn’t really necessary. 

In this article, Drew McCormack shows you how to build an app that uses SwiftUI for views while adopting immutable value types (structs) at every level, and immutable files on disk.

Learn how to handle errors in Swift Combine Framework with this tutorial. The author discusses how to use assertNoFailure, catch, replaceError, retry and mapError operators along with practical examples.

The folks at User Camp wrote their entire app Penbook using SwiftUI and PencilKit and share their experience doing so in this article.

Ever wondered how foldable, map and flatMap are implemented? Tyrone Michael Avnit has the answers.

This week Majid will talk about building a state container similar to Redux which provides a single source of truth for your app, which makes it easier to debug and inspect.

Enums are a very versatile tool in the Swift world. Vagelis Koutkias explains just how powerful they can be.

We’re looking for a Senior macOS Engineer to join our fully remote team at DuckDuckGo. This person will co-lead the development efforts on our Safari browser extension on macOS. Their secondary responsibility will be helping out with the development of our native iOS application.

A percentage type for Swift.

UILabel drop-in replacement supporting Hashtags (#), Mentions (@) and URLs (http://) written in Swift - optonaut/ActiveLabel.swift

🌈 Convert videos to high-quality GIFs on your Mac.