Protocol Oriented programming

Protocols

• A protocol defines a blueprint of methods, properties, and other requirements that suit a particular task or piece of functionality.
• The protocol can then be adopted by a class, structure, or enumeration to provide an actual implementation of those requirements. A
• Any type that satisfies the requirements of a protocol is said to conform to that protocol.

In POP,

• protocols play a central role in defining the capabilities of types (such as classes, structs, and enums).
• Instead of relying heavily on inheritance (as in OOP), POP promotes the composition of small, reusable protocols.
• This encourages a more modular and decoupled design.

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Key Features:

Protocol Extensions

• Swift allows extending protocols to provide default method implementations. This means that types conforming to protocols can get default behavior without the need for explicit implementation.

Protocol Compositions

• Swift supports combining multiple protocols into a single requirement using protocol composition, which enables a type to conform to multiple protocols.