asVoid method
Returns a Stream<void>
.
Example
Stream.fromIterable(['1', 'two', '3', 'four'])
.asVoid()
.listen(print); // prints null, null, null, null
// equivalent to:
Stream.fromIterable(['1', 'two', '3', 'four'])
.mapTo<void>(null)
.listen(print); // prints null, null, null, null
Implementation
Stream<void> asVoid() =>
Stream<void>.eventTransformed(this, (sink) => _AsVoidStreamSink<T>(sink));