TLDR: I've created a repository with React patterns implemented in SwiftUI
Apple has recently released SwiftUI, a declarative UI framework for building native applications on Apple devices. The similarities with React are quite obvious, which makes it relatively easy for any React developers to pick up.
I'm going to be teaching myself SwiftUI over the coming weeks and I'll be recording various common React design patterns implemented in SwiftUI. You can see them on the react-meets-swiftui GitHub repository. The hope is that these examples will make it easier for experienced React developers to pick up SwiftUI.
Please keep in mind that I have about 4 years of React experience, and 3 days of Swift experience. But I'll continue to update these examples as I learn more, and hopefully those with more experience will offer their help.