doOnEach method
inherited
Invokes the given callback function when the stream emits data, emits
an error, or emits done. The callback receives a Notification object.
The Notification object contains the Kind of event (OnData, onDone,
or OnError), and the item or error that was emitted. In the case of
onDone, no data is emitted as part of the Notification.
Example
new Observable.just(1)
.doOnEach(print)
.listen(null); // prints Notification{kind: OnData, value: 1, errorAndStackTrace: null}, Notification{kind: OnDone, value: null, errorAndStackTrace: null}
Implementation
Observable<T> doOnEach(void onEach(Notification<T> notification)) =>
transform(DoStreamTransformer<T>(onEach: onEach));