1. Dart
2. dart:html
3. BackgroundFetchEvent
4. id property

##### BackgroundFetchEvent class

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

description

# id property Null safety

String? id

## Implementation

    String? get id native;