1. Dart
2. dart:html
3. MediaStreamTrack
4. kind property

##### MediaStreamTrack class

1. Properties
2. contentHint
3. enabled
4. hashCode
5. id
6. kind
7. label
8. muted
9. on
10. onEnded
11. onMute
12. onUnmute
13. readyState
14. runtimeType
15. Methods
16. addEventListener
17. applyConstraints
18. clone
19. dispatchEvent
20. getCapabilities
21. getConstraints
22. getSettings
23. noSuchMethod
24. removeEventListener
25. stop
26. toString
27. Operators
28. operator ==
29. Constants
30. endedEvent
31. muteEvent
32. unmuteEvent

description

# kind property Null safety

String? kind

## Implementation

    String? get kind native;