April 2026
Intermediate
683 pages
25h 29m
English
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10 Protocols
In Swift, protocols define a common blueprint of classes, structs, or enums. They enable polymorphism and abstractions, allowing for development of interchangeable objects. Protocols are key elements of design patterns and object thinking.
In this chapter, you will learn about protocols in Swift, which enable an enormous degree of flexibility in codebases by providing blueprints for classes, structs, or enums.
In many object-oriented languages, protocols are referred to as interfaces. So if you’re familiar with interfaces in another language, know that Swift calls them protocols. But even for experienced programmers, this chapter is worth going through. Swift protocols might offer different merits or shortcomings than those of your ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.