What code alongs were there at WWDC?
Asked on 06/13/2025
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At WWDC, there was a code-along session titled "Code-along: Elevate an app with Swift concurrency" where participants could work line by line with an Apple engineer to build an app for composing sticker packs out of photos. This session covered various topics such as structured concurrency, preventing data races, and using tools like task groups for more control over concurrent code. You can find more details in the session Code-along: Elevate an app with Swift concurrency.
Welcome to WWDC25
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Code-along: Elevate an app with Swift concurrency
Learn how to optimize your app’s user experience with Swift concurrency as we update an existing sample app. We’ll start with a main-actor app, then gradually introduce asynchronous code as we need to. We’ll use tasks to optimize code running on the main actor, and discover how to parallelize code by offloading work to the background. We’ll explore what data-race safety provides, and work through interpreting and fixing data-race safety errors. Finally, we’ll show how you can make the most out of structured concurrency in the context of an app.
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