DeviceMotionEvent: rotationRate property

{{APIRef("Device Orientation Events")}}{{securecontext_header}}

The rotationRate read-only property of the {{domxref("DeviceMotionEvent")}} interface 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.

Value

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

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also

• {{domxref("Device orientation events/Detecting device orientation", "Detecting device orientation", "", "nocode")}}
• {{domxref("Device orientation events/Orientation and motion data explained", "Orientation and motion data explained", "", "nocode")}}
• {{DOMxRef("Window/devicemotion_event", "devicemotion")}} event