Introducing Swift Async Algorithms

As part of Swift’s move toward safe, simple, and performant asynchronous programming, we are pleased to introduce a new package of algorithms for AsyncSequence. It is called Swift Async Algorithms.

This package has three main goals:

• First-class integration with async/await
• Provide a home for time-based algorithms
• Be cross-platform and open source

→ swift.org/blog/swift-async-algorithms/

The Swift Async Algorithms package, introduces algorithms tailored for AsyncSequence in Swift 5.5, focusing on seamless async/await integration, time-based operations like debounce and throttle, and cross-platform, open-source development.

It offers familiar algorithms such as zip, combineLatest, merge, and chain, alongside new ones like buffer, with simple error handling via try and support for collecting values into arrays.

By leveraging structured concurrency, it simplifies asynchronous code to read like synchronous code, reducing complexity compared to Combine’s publisher-subscriber model.