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Swift Cookbook

You're reading from   Swift Cookbook Proven recipes for developing robust iOS applications with Swift 5.9

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Product type Paperback
Published in Jun 2024
Publisher Packt
ISBN-13 9781803239583
Length 422 pages
Edition 3rd Edition
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Authors (4):
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Chris Barker Chris Barker
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Chris Barker
Daniel Bolella Daniel Bolella
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Daniel Bolella
Nathan Lawlor Nathan Lawlor
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Nathan Lawlor
Keith Moon Keith Moon
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Keith Moon
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Toc

Table of Contents (15) Chapters Close

Preface 1. Chapter 1: Swift Fundamentals 2. Chapter 2: Mastering the Building Blocks FREE CHAPTER 3. Chapter 3: Data Wrangling with Swift 4. Chapter 4: Generics, Operators, and Nested Types 5. Chapter 5: Beyond the Standard Library 6. Chapter 6: Understanding Concurrency in Swift 7. Chapter 7: Building iOS Apps with UIKit 8. Chapter 8: Building iOS Apps with SwiftUI 9. Chapter 9: Getting to Grips with Combine 10. Chapter 10: Using CoreML and Vision in Swift 11. Chapter 11: Immersive Swift with ARKit and Augmented Reality 12. Chapter 12: Visualizing Data with Swift Charts 13. Index 14. Other Books You May Enjoy

Data Wrangling with Swift

Programming is all about making decisions. The purpose of most code involves taking information, inspecting it, making decisions, and producing an output. So far, we have seen a lot of ways to represent information, but in this chapter, we will explore how to make decisions based on that information, using a number of Swift’s control flow statements. We will find out how they differ and the situations where each is appropriate.

Once we’ve learned how Swift’s control flow works, we will have opened up a world of possibilities and paths for any information we wish to work with in Swift!

In this chapter, we will cover the following recipes:

  • Making decisions with if/else
  • Handling all cases with switch
  • Looping with for loops
  • Looping with while loops
  • Handling errors with try, throw, do, and catch
  • Checking upfront with guard
  • Doing it later with defer
  • Bailing out with fatalError and precondition
...
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