y property Null safety

1. Flutter
2. dart:html
3. Accelerometer
4. y property

Accelerometer class

1. Constructors
2. Accelerometer
3. Properties
4. activated
5. hashCode
6. hasReading
7. on
8. onError
9. runtimeType
10. timestamp
11. x
12. y
13. z
14. Methods
15. addEventListener
16. dispatchEvent
17. noSuchMethod
18. removeEventListener
19. start
20. stop
21. toString
22. Operators
23. operator ==