Mastering Swift 2 Programming (Video 6)

This video covers the changes introduced in Swift 2 during Apple's WWDC 2015. Key updates include enhancements to enums with associated values, option sets, and the introduction of guard statements for cleaner code. Swift 2 also brings improvements in pattern matching, API availability checks, and error handling. Additionally, Swift has become open source, paving the way for future developments.

What are the changes introduced to enum option sets in Swift?

Explain the concept of recursive enumerations in Swift.

Describe how option sets are defined and used in Swift.

What is the pyramid of doom situation in Swift, and how does guard help to resolve it?

What are the benefits of using pattern matching in Swift 2?

How does Swift handle API availability checks?

How does Swift 2 improve error handling compared to previous versions?