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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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Toc

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

Control transfer statements

Control transfer statements are used to transfer control to another part of the code. Swift offers six control transfer statements; these are continue, break, fallthrough, guard, throws, and return. We will look at the return statement in Chapter 6, Functions, and will discuss the throws statement in Chapter 11, Availability and Error Handling. The remaining control transfer statements will be discussed in this section.

The continue statement

The continue statement tells a loop to stop executing the code block and to go to the next iteration of the loop. The following example shows how we can use this statement to print out only the odd numbers in a range:

for i in 1...10 {  
  if i % 2 == 0 { ...
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