what are property wrappers in swift

Asked on 09/24/2024

1 search

Property wrappers in Swift are a feature that allows developers to encapsulate logic for managing stored values. They work by intercepting the calls to read and write a property, implementing reusable logic that can be applied to a property with a simple annotation. This feature helps in building expressive, type-safe APIs and reducing boilerplate code in applications. For example, the @Argument property wrapper from the Swift ArgumentParser package can be applied to a property to designate that it stores the value of a command line argument.

For more details, you can refer to the session A Swift Tour: Explore Swift’s features and design at the timestamp 23:13.