DeviceMotionEvent.rotationRate

Returns the rate at which the device is rotating around each of its axes in degrees per second.

Note: If the hardware isn't capable of providing this information, this property returns null.

Syntax

JavaScript
var rates = instanceOfDeviceMotionEvent.rotationRate;

Value

The rotationRates property is a read only object describing the rotation rates of the device around each of its axes:

alpha
The rate at which the device is rotating about its Z axis; that is, being twisted about a line perpendicular to the screen.
beta
The rate at which the device is rotating about its X axis; that is, front to back.
gamma
The rate at which the device is rotating about its Y axis; that is, side to side.

Specifications

Specification Status Comment
Device Orientation Events Working Draft Initial specification.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support (Yes) 6 (6) ? ? ?
Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support (Yes) 6.0 (6) Not supported Not supported 4.2

See also

License

© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/devicemotionevent/rotationrate

API Device Orientation DOM DOM Reference Firefox OS Mobile Motion NeedsExample Orientation Property Reference