Protocol extensions in Swift allow developers to add functionality to existing types without modifying their original code, promoting code reuse and enhancing modularity. They enable the definition of default behavior for methods, properties, and subscripts, which can be adopted by any type conforming to the protocol.

Protocol Extensions

Protocol extensions

Swift is a powerful and intuitive programming language developed by Apple for iOS, macOS, watchOS, and tvOS app development, designed to be easy to use and offer modern syntax and safety features. It combines the performance of compiled languages with the simplicity of scripting languages, making it accessible to both novice and experienced developers.

Swift

functionality to existing types

Modifying original code

Code reuse refers to the practice of using existing code for new functions or projects, reducing redundancy and improving efficiency in software development. It enhances maintainability and scalability by allowing developers to leverage proven, tested code components across various applications.

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