filterOrElse method
If f
applied on this ReaderTaskEither as Right returns true
, then return this ReaderTaskEither.
If it returns false
, return the result of onFalse
in a Left.
Implementation
ReaderTaskEither<E, L, R> filterOrElse(
bool Function(R r) f,
L Function(R r) onFalse,
) =>
flatMap(
(r) =>
f(r) ? ReaderTaskEither.of(r) : ReaderTaskEither.left(onFalse(r)),
);