Swift
Swift is an open source multi-paradigm compiled general-purpose programming language. Designed by Apple primarily for iOS and macOS developers. Swift works with the Cocoa and Cocoa Touch frameworks and is compatible with Apple's mainstream Objective-C codebase. Swift programs are compiled using LLVM, which is part of the Xcode 6 and higher IDE. Swift can use the Objective-C runtime, which makes it possible to use both languages (as well as C) within the same program.