1. Dart
2. dart:html
3. Gamepad
4. mapping property

##### Gamepad class

1. Properties
2. axes
3. buttons
4. connected
5. displayId
6. hand
7. hashCode
8. id
9. index
10. mapping
11. pose
12. runtimeType
13. timestamp
14. Methods
15. noSuchMethod
16. toString
17. Operators
18. operator ==

description

# mapping property Null safety

String? mapping

## Implementation

    String? get mapping native;