Protocols and Extensions
Protocols and Extensions Protocols and extensions are essential features of Swift that enhance code modularity, flexibility, and reusability. Protocols define a blueprint of methods, properties, or other requirements, while extensions allow you to add functionality to existing types. 35. Protocol Definition and Conformance What is a Protocol? A protocol in Swift is a blueprint of methods, properties, and other requirements that a type must implement. Protocols enable polymorphism and are central to protocol-oriented programming . Defining a Protocol protocol Vehicle { var speed: Double { get set } func move() } • Properties : Protocols specify properties, but the actual implementation is left to conforming types. • Methods : Protocols declare methods without implementation. Conforming to a Protocol Types (classes, structs, or enums) that conform to a protocol must impleme...