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Mastering Swift 5.3

You're reading from   Mastering Swift 5.3 Upgrade your knowledge and become an expert in the latest version of the Swift programming language

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Product type Paperback
Published in Nov 2020
Publisher Packt
ISBN-13 9781800562158
Length 418 pages
Edition 6th 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 (23) Chapters Close

Preface 1. Taking the First Steps with Swift 2. Swift Documentation and Installing Swift FREE CHAPTER 3. Learning about Variables, Constants, Strings, and Operators 4. Optional Types 5. Using Swift Collections 6. Control Flow 7. Functions 8. Classes, Structures, and Protocols 9. Protocols and Protocol Extensions 10. Protocol-Oriented Design 11. Generics 12. Error Handling and Availability 13. Custom Subscripting 14. Working with Closures 15. Advanced and Custom Operators 16. Concurrency and Parallelism in Swift 17. Custom Value Types 18. Memory Management 19. Swift Formatting and Style Guide 20. Adopting Design Patterns in Swift 21. Other Books You May Enjoy
22. Index

Creating a class or structure

We use the same syntax to define classes and structures. The only difference is that we define a class using the class keyword and a structure using the struct keyword.

Let's look at the syntax that's used to create both classes and structures:

class MyClass {
    // MyClass definition
}
struct MyStruct {
    // MyStruct definition
}

In the preceding code, we define a new class named MyClass and a new structure named MyStruct. This effectively creates two new Swift types, named MyClass and MyStruct. When we name a new type, we want to use the standard naming convention set by Swift, where the name is in camel case, with the first letter being uppercase. This is also known as PascalCase. Any method or property defined within the class or structure should also be named using camel case, with the first letter being uppercase. Empty classes and structures are not that useful, so let's look at how we can add properties to our classes...

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