Official documentation is here [1], with additional documentation and resources (that are more iOS and OSX specific) available here [2]. In particular, the Swi

Official documentation is here [1], with additional documentation and resources (that are more iOS and OSX specific) available here [2]. In particular, the Swift Programming Language ebook isn't a bad starting point. The IBM Swift Sandbox looks like a nice little interactive environment to complement it, though, if you don't have access to a Mac to run Xcode. [1] https://swift.org/documentation/ https://swift.org/documentation/ [2] https://developer.apple.com/swift/resources/ https://developer.apple.com/swift/resources/