Swift 3 New Features

Key Features

• Get up to date with the latest changes to Swift 3
• Make your life easier by knowing how to port your Swift code to the latest version
• Learn how to write programs that work on most of the major platforms such as iOS and Linux

Book Description

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.

What you will learn

• Migrate a Swift 2.2 project to Swift 3
• Understand the workings of Swift Package Manager
• Interact with Cocoa libraries when importing Objective C to Swift
• Explore the function and operator changes new in Swift 3
• Work with the advanced type changes, attribute improvements, and floating point type improvements in Swift
• Discover the changes in the Swift API and see how Objective-C can be manipulated in the current API
• Implement the new features central to Swift Testing and understand the new debug features
• Create server-side applications using Swift 3

About the Author

Keith Elliott is a multitalented professional with unique business and technology experience spanning telecommunications, real estate investment banking, and capital markets. His work is driven simply by problems that need solutions, whether the problem is as simple as his wife’s request for a custom to-do list or as complex as interest rate derivatives and foreign exchange hedging. He graduated with an MBA from Columbia Business School with an emphasis in entrepreneurship and an undergraduate degree from Georgia Institute of Technology with a bachelor's in computer engineering.

Keith's own company, GittieLabs LLC, works with startups to provide technology solutions. His vision is to equip students with the real-life experience necessary to succeed in startup and corporate life. You can find his blog on the GittieLabs LLC website, www.gittie.com.

On nights and weekends, Keith can be found spending time with his family, riding motorcycles with his lovely wife, watching football, and rewatching countless hours of WWDC videos.

Table of Contents

1. What Were They Thinking?
2. Discovering New Territories – Linux at Last!
3. Migrating to Swift 3 to Be More Swifty
4. Changes to Swifts Core Will Have You Asking for More
5. Function and Operator Changes – New Ways to Get Things Done
6. Extra, Extra Collection and Closure Changes That Rock!
7. Hold onto Your Chair; Advanced Type Changes Are Here!
8. Oh Goodness! Look What is New in the Foundation Framework
9. Improving Your Code with Xcode Server and LLDB Debugging
10. Exploring Swift on the Server

Keith Elliott is mobile developer with a passion for learning and sharing. Keith has more than 15 years of software development experience under his belt and the scars to prove it. He has a background in Computer Engineering from Georgia Institute of Technology and an MBA from Columbia Business School. Currently, Keith is a Senior Mobile Application Architect running an Innovation lab for a prominent FinTech startup.

He is a true Apple fan that loves developing for their platforms. When Keith is not hacking away for clients, he enjoys spending time with his wife and four kids. You can follow him on Twitter at @mrkeithelliott or on medium at https://medium.com/@mrkeithelliott.