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Mastering Swift 5

You're reading from   Mastering Swift 5 Deep dive into the latest edition of the Swift programming language

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Product type Paperback
Published in Apr 2019
Publisher Packt
ISBN-13 9781789139860
Length 370 pages
Edition 5th Edition
Languages
Tools
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Author (1):
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Jon Hoffman Jon Hoffman
Author Profile Icon Jon Hoffman
Jon Hoffman
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Table of Contents (20) Chapters Close

Preface 1. Taking the First Steps with Swift FREE CHAPTER 2. Learning about Variables, Constants, Strings, and Operators 3. Optional Types 4. Using Swift Collections 5. Control Flow 6. Functions 7. Classes, Structures, and Protocols 8. Using Protocols and Protocol Extensions 9. Protocol Oriented Design 10. Generics 11. Availability and Error Handling 12. Custom Subscripting 13. Working with Closures 14. Concurrency and Parallelism in Swift 15. Custom Types 16. Memory Management 17. Swift Formatting and Style Guider 18. Adopting Design Patterns in Swift 19. Other Books You May Enjoy

Tuples

Tuples group multiple values into a single compound type. These values are not required to be of the same type.

The following example shows how to define a tuple:

var team = ("Boston", "Red Sox", 97, 65, 59.9) 

In the preceding example, an unnamed tuple was created that contains two strings, two integers, and one double. The values of the tuple can be decomposed into a set of variables, as shown in the following example:

var team = ("Boston", "Red Sox", 97, 65, 59.9)  
var (city, name, wins, losses, percent) = team 

In the preceding code, the city variable will contain Boston, the name variable will contain Red Sox, the wins variable will contain 97, the losses variable will contain 65, and finally the percent variable will contain 59.9.

The values of the tuple can also be retrieved by specifying the location of the value. The following...

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