What does it take to make Objective-C ready for Swift? Since optionals are such an important part of Swift and were not a part of Objective-C for many years there are some integration efforts necessary to bring them together. The Nullability and Objective-C blog post covers the various ways that Objective-C can be decorated for optional syntax to make it more compatible with Swift.
There are still features available in the Swift language which are not available in Objective-C such as struct value types, advanced enums and various generics features.
This sample project is based on The Oatmeal's Babies vs Bears card game which includes models for Baby, Bear and Kitten from Exploding Kittens. Let's have some fun with making Objective-c work well with Swift.