Explore Swift’s new concurrency model, breaking down the differences between synchronous and asynchronous code, and how async/await functions manage thread suspension. We’ll also cover the practical side by explaining how to work with continuations and how to use the “add async alternative” shortcut.

Asynchronous code using completion handlers often leads to complexity, making your code harder to read and maintain. Swift’s async/await feature offers a more streamlined and error-resistant approach. In this article, I’ll guide you through the key differences between async/await and completion handlers and show you how to migrate your code to a more concise, safer version using Swift’s async/await.

Do you want to improve your code reusability and readability for your team? Try refactoring your code in small, predictable, low cognitive, easily trackable, and revertable changes using tests.