Swift is Apple’s new programming language.Swift is still the same familiar Objective-C development environment developers are used to. You can mix and match Swift and Objective-C code in the same app, so you can reuse existing libraries in new apps.
The syntax is concise yet expressive, and apps run lightning-fast. Swift is ready for your next iOS and OS X project — or for addition into your current app — because Swift code works side-by-side with Objective-C.
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