doOnLeft<L> function

StreamEither<L, R> Function<R>(StreamEither<L, R> either$) doOnLeft<L>(
  1. void procedure(
    1. L
    )
)

Implementation

StreamEither<L, R> Function<R>(
  StreamEither<L, R> either$,
) doOnLeft<L>(
  void Function(L) procedure,
) =>
    <R>(either$) => doOnEither(
          left: procedure,
          right: (R _) {},
        )(either$);