1. Dart
2. dart:html
3. ServiceWorker
4. state property

##### ServiceWorker class

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

description

# state property Null safety

String? state

## Implementation

    String? get state native;