79: Immutability, or Whatever

Mark is out this week, so Gordon is joined by Tony DiPasquale. They discuss Poppins, an internal app that they are working on to view and share animated gifs, Micro frameworks in Swift, and talk through refactoring a method from using Result to deal with multiple return values to returning a polymorphic protocol type. so-done.gif PR removing flatMap guards from Runes PR removing flatMap implementations from Runes Chris Eidhof's example project with functional view controllers Scenery (Not Scenic, sorry Chris) Using the Dropbox API in Swift Rob Rix's implementation of Result Either Deferred