August 2025
Intermediate to advanced
378 pages
8h 4m
English
Content preview from Mastering Swift 6 - Seventh Edition
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3
Protocols and Protocol Extensions
In Swift, protocols and protocol extensions play crucial roles in the writing of code that is flexible, reusable, and easy to maintain. Protocols act as blueprints, defining methods, properties, and other requirements that a type must adhere to when conforming to the protocol. This allows for the creation of standardized interfaces, which enables seamless communication between different components of an application and promotes code interoperability.
Additionally, protocol extensions provide a mechanism to extend the functionality of types without altering the original implementation and provide default implementations for methods and computed properties defined in a protocol. This enables developers to enhance ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.