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Mastering Swift 5.3

You're reading from Mastering Swift 5.3 Upgrade your knowledge and become an expert in the latest version of the Swift programming language

Product type Paperback

Published in Nov 2020

Publisher Packt

ISBN-13 9781800562158

Length 418 pages

Edition 6th Edition

Languages

Swift

Concepts

Application Development

Author (1):

Jon Hoffman

View More author details

Table of Contents (23) Chapters

Preface

1. Taking the First Steps with Swift

2. Swift Documentation and Installing Swift FREE CHAPTER

3. Learning about Variables, Constants, Strings, and Operators

4. Optional Types

5. Using Swift Collections

6. Control Flow

7. Functions

8. Classes, Structures, and Protocols

9. Protocols and Protocol Extensions

10. Protocol-Oriented Design

11. Generics

12. Error Handling and Availability

13. Custom Subscripting

14. Working with Closures

15. Advanced and Custom Operators

16. Concurrency and Parallelism in Swift

17. Custom Value Types

18. Memory Management

19. Swift Formatting and Style Guide

20. Adopting Design Patterns in Swift

21. Other Books You May Enjoy

22. Index

Protocols and Protocol Extensions

While watching the presentations from WWDC 2015 about protocol extensions and protocol-oriented programming (POP), I will admit that I was very skeptical. I have worked with object-oriented programming (OOP) for so long that I was unsure whether this new programming paradigm would solve all of the problems that Apple was claiming it would. Since I am not one who lets my skepticism get in the way of trying something new, I set up a new project that mirrored the one I was currently working on, but wrote the code using Apple's recommendations for POP. I also used protocol extensions extensively in the code. I can honestly say that I was amazed by how much cleaner the new project was compared to the original one. I believe that protocol extensions are going to be one of those defining features that set one programming language apart from the rest.

In this chapter, you will learn about the following topics:

How are protocols used as...

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Authors (1)

Jon Hoffman

Jon Hoffman

Jon Hoffman has over 25 years of experience in the field of information technology. Over these years, Jon has worked in the areas of system administration, network administration, network security, application development, and architecture. Currently, Jon works as a senior software engineer for Syn-Tech Systems. Jon has developed extensively for the iOS platform since 2008. This includes several apps that he has published in the App Store, apps that he has written for third parties, and numerous enterprise applications. He has also developed mobile applications for the Android and Windows platforms. What really drives Jon the challenges that the field of information technology provides and there is nothing more exhilarating to him than overcoming a challenge. Some of Jon's other interests are spending time with his family, robotic projects, and 3D printing. Jon also really enjoys Tae Kwon Do, where he and his oldest daughter Kailey earned their black belts together early in 2014, Kim (his wife) earned her black belt in December 2014, and his youngest daughter Kara is currently working towards her black belt.

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