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Mastering Swift

You're reading from   Mastering Swift

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Product type Paperback
Published in Jun 2015
Publisher Packt
ISBN-13 9781784392154
Length 358 pages
Edition 1st Edition
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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 (17) Chapters Close

Preface 1. Taking the First Steps with Swift FREE CHAPTER 2. Learning about Variables, Constants, Strings, and Operators 3. Using Collections and Cocoa Data Types 4. Control Flow and Functions 5. Classes and Structures 6. Working with XML and JSON Data 7. Custom Subscripting 8. Using Optional Type and Optional Chaining 9. Working with Generics 10. Working with Closures 11. Using Mix and Match 12. Concurrency and Parallelism in Swift 13. Swift Formatting and Style Guide 14. Network Development with Swift 15. Adopting Design Patterns in Swift Index

Creating a class or structure

We use the same syntax to define classes and structures. The only difference is we define a class using the class keyword and a structure by using the struct keyword. Let's look at the syntax used to create both classes and structures:

class MyClass {
  // 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 set by Swift where the name is in camel case, with the first letter being uppercase. Any method or property defined within the class or structure should also be named using camel case with the first letter being lowercase.

Empty classes and structures are not that useful, so let's look at how we can add properties to our classes and structures.

Properties

Properties associate values with a class or a structure...

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