redeem<C> method

@useResult Either<L, C> redeem<C>({ required C leftOperation(L value), required C rightOperation(R value), })

Redeem an Either to an Either by resolving the error or mapping the value R to C.

redeem is derived from map and handleError. This is functionally equivalent to map(rightOperation).handleError(leftOperation).

Implementation

@useResult
Either<L, C> redeem<C>({
  required C Function(L value) leftOperation,
  required C Function(R value) rightOperation,
}) =>
    _foldInternal(
      ifLeft: (v) => leftOperation(v).right(),
      ifRight: (v) => rightOperation(v).right(),
    );