1. Dart
2. dart:html
3. NotificationEvent
4. action property

##### NotificationEvent class

1. Constructors
2. NotificationEvent
3. Properties
4. action
5. bubbles
6. cancelable
7. composed
8. currentTarget
9. defaultPrevented
10. eventPhase
11. hashCode
12. isTrusted
13. matchingTarget
14. notification
15. path
16. reply
17. runtimeType
18. target
19. timeStamp
20. type
21. Methods
22. composedPath
23. noSuchMethod
24. preventDefault
25. stopImmediatePropagation
26. stopPropagation
27. toString
28. waitUntil
29. Operators
30. operator ==

description

# action property Null safety

String? action

## Implementation

    String? get action native;