mediumios-protocol-oriented-programming

What is protocol-oriented programming in Swift and when is it useful?

Answer

Protocol-oriented programming uses protocols + extensions to share behavior. Benefits: - Composition over inheritance - Better testability via protocol abstractions - Reusable default implementations It’s useful for building modular systems (network clients, repositories) and for decoupling app layers without deep class hierarchies.

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SwiftArchitectureiOS

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