The value
property provides the current level of the ambient light.
Syntax
var light = instanceOfDeviceLightEvent.value;
Value
A positive number representing a light intensity expressed in lux.
Specifications
Specification | Status | Comment |
---|---|---|
Ambient Light Sensor The definition of 'Ambient Light Events' in that specification. |
Editor's Draft | Initial definition |
Browser compatibility
Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | No support | (Yes) | 22.0 (22.0)[1] | No support | No support | No support |
Feature | Android Webview | Chrome for Android | Edge | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|---|
Basic support | No support | No support | (Yes) | 15.0 (15.0)[1] | No support | No support | No support |
[1] The devicelight
event is implemented and preference enabled by default in Firefox Mobile for Android (15.0) and in Firefox OS (B2G). Starting with Gecko 22.0 (Firefox 22.0 / Thunderbird 22.0 / SeaMonkey 2.19) a desktop implementation for Mac OS X is also available. Support for Windows 7 is in progress (see bug 754199).