What are Swift protocols and how do they work?

What are Swift protocols and how do they work?

Swift protocols are a way to define a blueprint of methods, properties, and other requirements that suit a particular task or piece of functionality.

Can you give me an example of a protocol in Swift?

Sure! Here's a simple example:

protocol Vehicle {
    var numberOfWheels: Int { get }
    func drive()
}

How do I adopt a protocol in a class?

To adopt a protocol in a class, you simply declare it after the class name, like this:

class Car: Vehicle {
    var numberOfWheels: Int { return 4 }
    func drive() { print("Driving...") }
}

What happens if a class doesn't implement all protocol requirements?

If a class doesn't implement all the requirements of a protocol, it will result in a compile-time error, ensuring that the class conforms to the protocol.