##### ServiceWorker class

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

# postMessage method

void postMessage (Object message, [ List<Object> transfer ])

## Implementation

    void postMessage(Object message, [List<Object> transfer]) native;