Previously I wrote about the new features in Swift 4.1, but it's a lot more fun to see things in action and experiment yourself.
So, I just released an Xcode playground that demonstrates the new features introduced in Swift 4.1, complete with examples that I hope make them easy to understand and apply in your own work:
flatMap()is now (partly)
The playground is available on GitHub, so I hope you'll try it for yourself: what's new in Swift 4.1?
I should add that the task of building this playground was made much easier thanks to previous work done by Ole Begemann.
Paul Hudson is the creator of Hacking with Swift, the most comprehensive series of Swift books in the world. He's also the editor of Swift Developer News, the maintainer of the Swift Knowledge Base, and Mario Kart world champion. OK, so that last part isn't true. If you're curious you can learn more here.