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Mastering Swift 3

You're reading from   Mastering Swift 3 Build incredible apps for iOS and OS X

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Product type Paperback
Published in Oct 2016
Publisher Packt
ISBN-13 9781786466129
Length 392 pages
Edition 1st Edition
Languages
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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 (18) Chapters Close

Preface 1. Taking the First Steps with Swift FREE CHAPTER 2. Learning About Variables, Constants, Strings, and Operators 3. Using Swift Collections and the Tuple Type 4. Control Flow and Functions 5. Classes and Structures 6. Using Protocols and Protocol Extensions 7. Protocol-Oriented Design 8. Writing Safer Code with Availability and Error Handling 9. Custom Subscripting 10. Using Optional Types 11. Working with Generics 12. Working with Closures 13. Using Mix and Match 14. Concurrency and Parallelism in Swift 15. Swift Formatting and Style Guide 16. Swifts Core Libraries 17. Adopting Design Patterns in Swift

Chapter 4. Control Flow and Functions

While I was learning BASIC programming on my Vic-20, every month I would read several of the early computer magazines such as Byte Magazine. I remember one particular review that I read; it was for a game called Zork. While Zork was not a game that was available for my Vic-20, the concept of the game fascinated me because I was really into sci-fi and fantasy. I remember thinking how cool it would be to write a game like that, so I decided to figure out how to do it. One of the biggest concepts that I had to grasp at that time was controlling the flow of the application depending on the user's actions.

In this chapter, we will cover the following topics:

  • What conditional statements are and how to use them?
  • What loops are and how to use them?
  • What control transfer statements are and how to use them?
  • How to create and use functions in Swift?
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