What’s New in Swift 2.0
One year ago, Apple released Swift, a brand new programming language for both iOS and OS X development and now they introduced Swift 2 with Xcode 7 this year. Swift 2 includes some new features such as improved error handling, availability check and , protocol extensions etc. Lets take the overview of new features.
Error handling :

API availability :

Protocol Extensions :

New Keywords :
- guard

- defer

- repeat

print :

Measuring strings :

