Swift
- Swift.org - Welcome to Swift.org
https://swift.org/ - Swift - Apple Developer
https://developer.apple.com/swift/
Swift is a powerful and intuitive programming language for macOS, iOS, watchOS and tvOS. - iOS App Development with Swift Specialization
https://www.coursera.org/specializations/app-development
This Specialization covers the fundamentals of iOS application development in the Swift programming language. - Swift (programming language) - Wikipedia
https://en.wikipedia.org/wiki/Swift_(programming_language)