If you are an iOS developer or planning to become one learning Swift 2 is your #1 priority
and this book tells you everything you need to get up to speed well swiftly. You'll start
with the Swift Playground and an introduction to object-oriented programming so you can
immediately see Swift in action. You then learn about all of the key language features like
functions and closures classes methods extensions and how Swift works just as well as
Objective-C when it comes to easy memory management with ARC. Finally you'll learn how to use
Swift alongside Objective-C as well as with Core Data and you'll learn how to put all of the
pieces together with a health app using Apple's HealthKit framework.
