Apple's Swift has far-reaching effects on all platforms, not just iOS, OS X, watchOS and tvOS. Learn why Swift matters, how to use the programming language and how it differs from Objective-C.

How to use the Swift Playgrounds iPad app to code on the go Your email has been sent What is a Playground? Downloading Swift Playgrounds Using Swift Playgrounds with ...

Xcode allows you to live preview your iOS views using Xcode Previews, so you can see how the app appears as you're actively developing it. Here's how to use them. Xcode is Apple's development ...