< alex hart> `flatMap a gt f a fold empty lt B gt just it ` kotlinlang #arrow

<@U0BAF68H2> `flatMap { a -> f(a).fold({ em...

jacob

12/04/2018, 10:41 PM

@alex.hart

flatMap { a -> f(a).fold({ empty<B>() }, { just(it) }) }

is how mapFilter is implemented, which looks pretty close to what you were suggesting. nice 🙂