does kotlin have syntactic sugar for nullable types like the for-comprehension / yield thing in Scala? i.e. I have n-nullable variables and I want to yield only if they are all not null (return null otherwise)

kotlin does not have for-comprehension. in this sense the nested

let

are similar to the nested

flatMap

which the for comprehension hides

ok thanks

You can check out #arrow which has comprehensions based on coroutines

will check it out, thanks

Those ,on Arrow, are called

fx

(they exist for a bunch of monadic types, eg Option, Either, IO, etc)