1. Dart
2. dart:html
3. AmbientLightSensor
4. illuminance property

##### AmbientLightSensor class

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

description

# illuminance property Null safety

num? illuminance

## Implementation

    num? get illuminance native;