Swift 3 is a powerful and intuitive programming language for macOS, iOS, watchOS and tvOS. Writing Swift code is interactive and fun, the syntax is concise yet expressive, and Swift includes modern features developers love. Swift code is safe by design, yet also produces software that runs lightning-fast. Swift 3 is a thorough refinement of the language and the API conventions for the frameworks you use every day. These improvements make the code you write even more natural, while ensuring your code is much more consistent moving forward. For example, select Foundation types such as the new Date type are easier to use and are much faster than previous releases, and the Calendar type uses enums to feel more at home within Swift.
Swift Playgrounds is a revolutionary new iPad app that helps you learn and explore coding in Swift. Built-in lessons and challenges teach fundamental coding concepts as you write real Swift code in an interactive environment designed for touch. You can follow through the included lessons, or create playgrounds to explore code at your own pace. And since Swift Playgrounds includes real iOS frameworks such as UIKit, SceneKit, and SpriteKit, and access to the hardware touch gestures, gyroscope, and camera, you can build nearly anything you can imagine.
Swift 3 is the first major release developed in the open at Swift.org, with source code, a bug tracker, mailing lists, and regular development builds available for everyone. This broad community of developers, both inside Apple as well as hundreds of outside contributors, work together to make Swift even more amazing. Swift already supports all Apple platforms as well as Linux, with community members actively working to port to even more platforms.
Much like Swift Playgrounds for iPad, playgrounds in Xcode make writing Swift code incredibly simple and fun. Type a line of code and the result appears immediately. You can then Quick Look the result from the side of your code, or pin that result directly below. The result view can display graphics, lists of results, or graphs of a value over time. You can open the Timeline Assistant to watch a complex view evolve and animate, great for experimenting with new UI code, or to play an animated SpriteKit scene as you code it. When you’ve perfected your code in the playground, simply move that code into your project.
Read-Eval-Print-Loop (REPL). The LLDB debugging console in Xcode includes an interactive version of the Swift language built right in. Use Swift syntax to evaluate and interact with your running app, or write new code to see how it works in a script-like environment. Available from within the Xcode console or in Terminal.
From its earliest conception, Swift was built to be fast. Using the incredibly high-performance LLVM compiler, Swift code is transformed into optimized native code that gets the most out of modern hardware. The syntax and standard library have also been tuned to make the most obvious way to write your code also perform the best.
Swift is a successor to both the C and Objective-C languages. It includes low-level primitives such as types, flow control, and operators. It also provides object-oriented features such as classes, protocols, and generics, giving Cocoa and Cocoa Touch developers the performance and power they demand.
Learn Swift 3 with our Tutorials http://apps-top.com/swift-tutorials-learn-swift-3/
Read more about Swift 3 at https://developer.apple.com/swift/