For a short time, maybe around Swift 2/3, functional features got some focus, but the language moved in a different direction. The only functional features I c

For a short time, maybe around Swift 2/3, functional features got some focus, but the language moved in a different direction. The only functional features I can think of are closures, map/reduce/etc., and value types. I have a lot of criticisms about Swift but this one seems weird/outdated to me.