what is protocol in swift
Asked on 08/24/2024
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In Swift, a protocol is an abstract set of requirements for a type. It provides a way to define a blueprint of methods, properties, and other requirements that suit a particular task or piece of functionality. A type can conform to a protocol by implementing all of its requirements. This allows for a more flexible and reusable code structure, as protocols can be used with both value and reference types.
For example, in the session titled "A Swift Tour: Explore Swift’s features and design," it is mentioned that a protocol can be used to abstract over a family of types, such as the collection types in the Swift standard library. This allows for a more general way to build abstractions, not limited to a hierarchy of classes.
If you're interested in learning more about protocols and their use in Swift, you might want to check out the session A Swift Tour: Explore Swift’s features and design (14:15).
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