fold<TR, T> method

Future<TR> fold<TR, T>(
  1. TR noneF(),
  2. TR someF(
    1. T val
    )
)

Implementation

Future<TR> fold<TR, T>(TR Function() noneF, TR Function(T val) someF) {
  return then((value) => value.fold(() => noneF(), (some) => someF(some)));
}