Experimental
This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The AmbientLightSensor
interface of the Sensor APIs returns the current light level or illuminance of the ambient light around the hosting device.
To use this sensor, the user must grant permission to the 'ambient-light-sensor'
device sensor through the Permissions
API.
If a feature policy blocks use of a feature it is because your code is inconsistent with the policies set on your server. This is not something that would ever be shown to a user. See Feature-Policy
for implementation instructions.
Constructor
AmbientLightSensor.AmbientLightSensor()
- Creates a new
AmbientLightSensor
object.
Properties
AmbientLightSensor.illuminance
- Returns the current light level in lux of the ambient light level around the hosting device.
Example
if ( 'AmbientLightSensor' in window ) {
const sensor = new AmbientLightSensor();
sensor.onreading = () => {
console.log('Current light level:', sensor.illuminance);
};
sensor.onerror = (event) => {
console.log(event.error.name, event.error.message);
};
sensor.start();
}
Specifications
Specification | Status | Comment |
---|---|---|
Generic Sensor API | Candidate Recommendation | Defines sensors in general. |
Ambient Light Sensor The definition of 'AmbientLightSensor' in that specification. |
Candidate Recommendation |
Browser compatibility
BCD tables only load in the browser