Functional Programming with Swift

Functional programming has become increasingly popular in recent years, offering developers a powerful paradigm for writing clean, maintainable, and efficient code. Swift embraces functional programming concepts alongside its object-oriented and protocol-oriented features. This versatility makes Swift an excellent choice for developers looking to explore and implement functional programming techniques in their projects.

At the heart of functional programming is the use of pure functions and immutability. Pure functions are those that always produce the same output for a given input, without modifying any external state. This predictability leads to code that is easy to test and debug.

Immutability is another key principle of functional programming, and Swift offers several ways of supporting immutable data. The language’s let keyword for declaring constants, along with value types such as structs and enums, encourages developers to...