Most modern iOS apps need to run code asynchronously.
Asynchronous code can be suspended and resumed later, allowing your app to keep its UI responsive while working on long tasks, like performing network requests to a REST API.
You often run asynchronous code in parallel to make the best use of resources like the cores on your device’s CPU or internet bandwidth.
In this article, we will see how to run asynchronous functions in Swift and iOS apps using async/await.