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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

Using Swift Collections

Once I got past the basic Hello, World! beginner applications, I quickly began to realize the shortcomings of variables, especially with the Mad Libs-style applications that I was starting to write. These applications requested that the user enter numerous strings, which resulted in the creation of separate variables for each input field that the user entered. Having all these separate variables quickly became cumbersome. I remember talking to a friend about this, and he asked me why I was not using arrays. At that time, I was not familiar with arrays, so I asked him to show me what they were. Even though he had a TI-99/4A and I had a Commodore Vic-20, the concept of arrays was the same. Even today, the arrays found in modern development languages have the same basic concepts as the arrays I used on my Commodore Vic-20. While it is definitely possible to...

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