Book Image

Swift 3 New Features

By : Keith Elliott
Book Image

Swift 3 New Features

By: Keith Elliott

Overview of this book

Since Swift was introduced by Apple in WWDC 2015, it has gone on to become one of the most beloved languages to develop iOS applications with. In the new version, the Swift team aimed to take its adoption to the next level by making it available for new platforms and audiences. This book will very quickly get you up to speed and productive with Swift 3. You will begin by understanding the process of submitting new feature requests for future versions of Swift. Swift 3 allows you to develop and run your applications on a Linux machine. Using this feature, you will write your first Linux application using the debugger in Linux. Using Swift migrator, you will initiate a conversion from Swift 2.2 to Swift 3. Further on, you will learn how to interact with Cocoa libraries when importing Objective C to Swift. You will explore the function and operator changes new to Swift 3, followed by Collection and Closure changes. You will also see the changes in Swift 3 that allow you write tests easier with XCTest and debug your running code better with new formats as well. Finally, you will have a running server written completely in Swift on a Linux box. By the end of the book, you will know everything you need to know to dive into Swift 3 and build successful projects.
Table of Contents (16 chapters)
Swift 3 New Features
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
5
Function and Operator Changes – New Ways to Get Things Done

Swift Package Manager


The Swift Package Manager is the Swift Army Knife that allows you to manage your code dependencies, share your own packages, and use the libraries created by others. It's an extremely important tool, one that you need to know in order to do anything productive with Swift. My goal is to provide you with a quick overview and then dive into some examples so we can use it in an example to solidify the core concepts.

Like other languages, Swift allows you to organize and group your Swift code. Swift refers to these groupings as modules. Modules in Swift allow the developer to enforce control on the functionality that is exposed publicly (outside of the module) and the functionality that is only visible within the module.

As developers, we use modules that we create or that other developers create to write our software. When we use other developers' modules, we create a dependency on their code. Swift allows us to create a package, which consists of the Swift code we write...