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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

Conditional statements

A conditional statement will check a condition and execute a block of code only if the condition is true. Swift provides both the if and if...else conditional statements. Let's take a look at how to use these conditional statements to execute blocks of code if a specified condition is true.

The if statement

The if statement will check a conditional statement and, if it is true, it will execute the block of code. This statement takes the following format:

if condition {  
  block of code 
} 

Now, let's take a look at how to use the if statement:

let teamOneScore = 7  
let teamTwoScore = 6 
if teamOneScore > teamTwoScore {  
  print("Team One Won") 
}

In the preceding example, we...

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