doOnError method
- void onError( )
Invokes the given callback function when the stream emits an error.
Example
Stream.error(Exception())
.doOnError((error, stacktrace) => print('oh no'))
.listen(null); // prints 'Oh no'
Implementation
Stream<T> doOnError(void Function(Object, StackTrace) onError) =>
transform(DoStreamTransformer<T>(onError: onError));