Swift by Sundell — Articles

Title: Articles | Swift by Sundell

URL Source: http://swiftbysundell.com/articles/

Markdown Content:

Articles | Swift by Sundell

Articles and podcasts about Swift development, by John Sundell.

• Articles
• Podcast
• Archive
• Subscribe
• About
• Search

Presented by the Genius Scan SDK

Articles

Frequently published articles about Swift techniques, language features, architectual patterns, and beyond.

Subscribe via RSS

• Building a design system at Genius Scan

  • ui development
  • swiftui
  • sponsored

Published on 31 Aug 2025

An example of how to approach the task of building a design system for an app, by focusing on creating an initial set of reusable components that can be tweaked using the SwiftUI environment.

• Deciding between ‘let’ and ‘var’ for Swift struct properties

  • language features
  • value types

Published on 23 Jul 2025

Does marking a given Swift struct property as either ‘let’ or ‘var’ simply determine its mutability, or is there more to it? Let’s explore!

• Decoding Swift types that require additional data

  • codable
  • standard library

Published on 30 Jun 2025

How Swift’s CodableWithConfiguration API can be used to inject additional, required data into a type’s decoding process, without having to use optionals or declare any additional decoding-specific types.

• Tips and tricks for when using SwiftUI’s ViewBuilder

  • swiftui

Published on 30 May 2025

Let’s explore how we can use SwiftUI’s ViewBuilder within our own code, and a few things that can be good to keep in mind when doing so.

• Using Swift’s defer keyword within async and throwing contexts

  • language features
  • concurrency

Published on 15 Apr 2025

How Swift’s defer keyword can be incredibly useful when working with code scopes that have multiple exit points, such as throwing or async functions.

• Modern URL construction in Swift

  • urls
  • foundation
  • macros

Published on 31 Mar 2025

How to combine Foundation’s latest URL APIs with Swift features like macros, to be able to work with both static and dynamic URLs in simpler and more predictable ways.

• Swift by Sundell is back!

Published on 31 Mar 2025 After a two-year hiatus, Swift by Sundell is finally back, with new articles published on a regular basis.

Copyright © Sundell sp. z o.o. 2025.

Built in Swift using Publish.

Mastodon | RSS | Contact