Tuple2EitherOps<E, T1, T2>
extension Tuple2EitherOps<E, T1, T2> on RecordProvides additional functions on tuple with 2 Eithers.
Properties
tupled extension no setter
Either<E, Record> get tupledIf all items of this tuple are a Right, the respective items are turned into a tuple and returned as a Right. If any item is a Left, the first Left encountered is returned.
Available on Record, provided by the Tuple2EitherOps<E, T1, T2> extension
Implementation
dart
Either<E, (T1, T2)> get tupled => $1.flatMap((a) => $2.map((b) => (a, b)));Methods
mapN() extension
Either<E, T3> mapN<T3>(T3 Function(T1, T2) fn)Applies fn to the values of each respective tuple member if all values are a Right. If any item is a Left, the first Left encountered will be returned.
Available on Record, provided by the Tuple2EitherOps<E, T1, T2> extension
Implementation
dart
Either<E, T3> mapN<T3>(Function2<T1, T2, T3> fn) => tupled.map(fn.tupled);