To get the most out of this book

This book assumes no knowledge of the Swift programming language or any other language. All code examples have been tested using Xcode 12.01 on a Mac, however they should work using Swift on Linux or Windows as well.

Download the example code files

The code bundle for the book is also hosted on GitHub at https://github.com/PacktPublishing/Mastering-Swift-5.3_Sixth-Edition. We also have other code bundles from our rich catalog of books and videos available at https://github.com/PacktPublishing/. Check them out!

Download the color images

We also provide a PDF file that has color images of the screenshots/diagrams used in this book. You can download it here: https://static.packt-cdn.com/downloads/9781800562158_ColorImages.pdf.

Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. For example; "Once the grade is retrieved, we will use it to set the grade property of the MyValueType instance."

A block of code is set as follows:

protocol Occupation {
    var occupationName: String { get set } 
    var yearlySalary:Double { get set }
    var experienceYears: Double { get set }
}

Any command-line input or output is written as follows:

./swift/utils/build-script --preset=buildbot_swiftpm_linux_platform,tools=RA,stdlib=RA

Bold: Indicates a new term, an important word, or words that you see on the screen, for example, in menus or dialog boxes, also appear in the text like this. For example: "Swift is a programming language that was introduced by Apple at the Worldwide Developers Conference (WWDC) in 2014."

Warnings or important notes appear like this.

Tips and tricks appear like this.