

While the motivation is mainly talking about property wrappers being a solution for there’s a typical pattern it solves you might all recognize.įREE iOS Architect Crash Course for a limited time! If you’re a mid/senior iOS developer looking to improve your skills and salary level, join this 100% free online crash course. You can find a background story on property wrappers on the Swift forums for SE-0258. It’s a neat addition to the Swift library that allows removing much boilerplate code, which we probably all have written in our projects. This new technique appeared at WWDC 2019 and first became available in Swift 5. Property Wrappers in Swift allow you to extract common logic in a distinct wrapper object. 10 min read Property Wrappers in Swift explained with code examples.

Attaching Property Wrappers to function and closure parameters.Accessing a property wrapper’s enclosing instance.Projecting a Value From a Property Wrapper.
