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Swift 4 Programming Cookbook

You're reading from   Swift 4 Programming Cookbook 50 task-oriented recipes to maximise Swift 4 productivity

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Product type Paperback
Published in Sep 2017
Publisher Packt
ISBN-13 9781786460899
Length 384 pages
Edition 1st Edition
Languages
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Author (1):
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Keith Moon Keith Moon
Author Profile Icon Keith Moon
Keith Moon
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Toc

Table of Contents (9) Chapters Close

Preface 1. Swift Building Blocks FREE CHAPTER 2. Building on the Building Blocks 3. Data Wrangling with Swift Control Flow 4. Generics, Operators, and Nested Types 5. Beyond the Standard Library 6. Swift Playgrounds 7. Server-Side Swift 8. Performance and Responsiveness in Swift

Switch it up

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 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, as we will see.

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...

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