Swift is a powerful and intuitive programming language for macOS, iOS, watchOS, tvOS, and beyond. Writing Swift code is interactive and fun, the syntax is concise yet expressive, and Swift includes modern features developers love. Swift code is safe by design, yet also produces software that runs lightning-fast.
The goal of the Swift project is to create the best available language for uses ranging from systems programming to mobile and desktop apps, scaling up to cloud services. Most importantly, Swift is designed to make writing and maintaining correct programs easier for the developer
Swift includes features that make code easier to read and write while giving the developer the control needed in a true systems programming language. Swift supports inferred types to make code cleaner and less prone to mistakes, and modules eliminate headers and provide namespaces. Memory is managed automatically, and you don’t even need to type semi-colons. Swift also borrows from other languages, for instance, named parameters brought forward from Objective-C are expressed in a clean syntax that makes APIs in Swift easy to read and maintain.
The features of Swift are designed to work together to create a language that is powerful, yet fun to use. Some additional features of Swift include:
– Closures unified with function pointers
-Tuples and multiple return values
– Fast and concise iteration over a range or collection
– Structs that support methods, extensions, and protocols
– Functional programming patterns, e.g., map and filter
– Powerful error handling built-in
– Advanced control flow with do, guard, defer, and repeat keywords