1. Dart
2. dart:html
3. AbstractWorker
4. onError property

##### AbstractWorker class

1. Properties
2. hashCode
3. on
4. onError
5. runtimeType
6. Methods
7. addEventListener
8. dispatchEvent
9. noSuchMethod
10. removeEventListener
11. toString
12. Operators
13. operator ==
14. Constants
15. errorEvent

description

# onError property Null safety

Stream<Event> onError

Stream of `error` events handled by this AbstractWorker.

## Implementation

    Stream<Event> get onError => errorEvent.forTarget(this);