ifErr abstract method

Resolvable<T> ifErr(
  1. @noFutures void noFutures(
    1. Resolvable<T> self,
    2. Err<T> err
    )
)

Performs a side-effect if this is Err.

Implementation

Resolvable<T> ifErr(
  @noFutures void Function(Resolvable<T> self, Err<T> err) noFutures,
);