This property indicates the rate of rotation around the Z axis -- in degrees per second -- in a DeviceMotionEventRotationRate object.
Syntax
var alpha = deviceRotationRate.alpha;
This property is read-only.
Return value
alpha- A
doubleindicating the rate of rotation around the Z axis, in degrees per second. See Accelerometer values explained for details.
Specifications
| Specification | Status | Comment |
|---|---|---|
| DeviceOrientation Event Specification The definition of 'DeviceMotionEventRotationRate: alpha' in that specification. |
Editor's Draft |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
alpha | Chrome No support No | Edge No support 12 — 79 | Firefox ? | IE No support No | Opera ? | Safari ? | WebView Android Full support ≤37 | Chrome Android Full support 28 | Firefox Android ? | Opera Android ? | Safari iOS ? | Samsung Internet Android Full support 1.5 |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.