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Swift Cookbook

You're reading from   Swift Cookbook Proven recipes for developing robust iOS applications with Swift 5.9

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Product type Paperback
Published in Jun 2024
Publisher Packt
ISBN-13 9781803239583
Length 422 pages
Edition 3rd Edition
Languages
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Authors (4):
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Chris Barker Chris Barker
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Chris Barker
Daniel Bolella Daniel Bolella
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Daniel Bolella
Nathan Lawlor Nathan Lawlor
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Nathan Lawlor
Keith Moon Keith Moon
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Keith Moon
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Toc

Table of Contents (15) Chapters Close

Preface 1. Chapter 1: Swift Fundamentals 2. Chapter 2: Mastering the Building Blocks FREE CHAPTER 3. Chapter 3: Data Wrangling with Swift 4. Chapter 4: Generics, Operators, and Nested Types 5. Chapter 5: Beyond the Standard Library 6. Chapter 6: Understanding Concurrency in Swift 7. Chapter 7: Building iOS Apps with UIKit 8. Chapter 8: Building iOS Apps with SwiftUI 9. Chapter 9: Getting to Grips with Combine 10. Chapter 10: Using CoreML and Vision in Swift 11. Chapter 11: Immersive Swift with ARKit and Augmented Reality 12. Chapter 12: Visualizing Data with Swift Charts 13. Index 14. Other Books You May Enjoy

Handling all cases with switch

switch statements allow you to control the flow of execution by testing one specific value in multiple ways. In Objective-C and other languages, switch statements can only be used on values that can be represented by an integer, and they are most commonly used to make decisions based on enumeration cases.

As we have seen, enumerations have become a lot more powerful in Swift, as they can be based on more than just integers, and so too can switch statements.

switch statements in Swift can be used on any type and have advanced pattern-matching functionality.

In this recipe, we will explore both simple and advanced usage of switch control flow statements to control logic.

Getting ready

If you are old enough to remember the early days of the home computer, you may also remember text-based adventures. These were simple games that usually described a scene and then let you move around, by typing a command to move north, south, east, or west...

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