Official documentation is here [1], with additional documentation and resources (that are more iOS and OSX specific) available here [2].<p>In particular, the Swift Programming Language ebook isn&#x27;t a bad starting point.  The IBM Swift Sandbox looks like a nice little interactive environment to complement it, though, if you don&#x27;t have access to a Mac to run Xcode.<p>[1] <a href="https:&#x2F;&#x2F;swift.org&#x2F;documentation&#x2F;" rel="nofollow">https:&#x2F;&#x2F;swift.org&#x2F;documentation&#x2F;</a>
[2] <a href="https:&#x2F;&#x2F;developer.apple.com&#x2F;swift&#x2F;resources&#x2F;" rel="nofollow">https:&#x2F;&#x2F;developer.apple.com&#x2F;swift&#x2F;resources&#x2F;</a>