Swift

export PATH=/Library/Developer/Toolchains/swift-latest.xctoolchain/usr/bin:"${PATH}"

Features

1. Closures unified with function pointers
2. Tuples and multiple return values
3. Generics
4. Fast and concise iteration over a range or collection
5. Structs that support methods, extensions, and protocols
6. Functional programming patterns, e.g., map and filter
7. Powerful error handling built-in
8. Advanced control flow with do, guard, defer, and repeat keywords

References

• iOS Chat Tutorial
• Swift Community
• Download Swift
• About Swift