What's new in Swift 1.2?
The following changes were made in Swift 1.2:
- The zip() function joins two sequences
- The flatMap() method transforms optionals and arrays
- Closures can now be marked @noescape
- Classes can now have static methods and properties
- Constants no longer require immediate initialization
- A new Set data structure
- Implicit bridging has been reduced
- Multiple if let bindings
- Typecasting now includes as!
