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Swift Cookbook

You're reading from   Swift Cookbook Over 60 proven recipes for developing better iOS applications with Swift 5.3

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Product type Paperback
Published in Feb 2021
Publisher Packt
ISBN-13 9781839211195
Length 500 pages
Edition 2nd Edition
Languages
Tools
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Authors (3):
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Chris Barker Chris Barker
Author Profile Icon Chris Barker
Chris Barker
Keith D. Moon Keith D. Moon
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Keith D. Moon
Keith Moon Keith Moon
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Keith Moon
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Toc

Table of Contents (14) Chapters Close

Preface 1. Swift Building Blocks 2. Mastering the Building Blocks FREE CHAPTER 3. Data Wrangling with Swift Control Flow 4. Generics, Operators, and Nested Types 5. Beyond the Standard Library 6. Building iOS Apps with Swift 7. Swift Playgrounds 8. Server-Side Swift 9. Performance and Responsiveness in Swift 10. SwiftUI and Combine Framework 11. Using CoreML and Vision in Swift 12. About Packt 13. Other Books You May Enjoy

Encapsulating functionality in object classes

Object-oriented programming is a common and powerful programming paradigm. At its core is the object class. Objects allow us to encapsulate data and functionality, which can then be stored and passed around.

In this recipe, we will build some class objects, break down their components, and understand how they are defined and used.

How to do it...

Let's write some code to create and use class objects, and then we will walk through what the code is doing:

  1. First, create a Person class object:
class Person { 

}
  1. Within the curly brackets, { and }, add three constants representing the person's name, and one variable representing their country of residence:
let givenName: String 
let middleName: String
let familyName: String
var countryOfResidence: String = "UK"
  1. Below the properties, but still within the curly brackets, add an initialization method for our Person object:
init(givenName: String, middleName: String, familyName...
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