- maybe-map proc maybeprocedure
- either-map proc eitherprocedure
Monadic map. If maybe/either is a Just/Right, applies proc to the payload values and wraps the returned values as a Just/Right; otherwise returns maybe/either.
Monadic map. If maybe/either is a Just/Right, applies proc to the payload values and wraps the returned values as a Just/Right; otherwise returns maybe/either.