DeviceOrientationEvent: alpha property

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The alpha read-only property of the DeviceOrientationEvent interface returns the rotation of the device around the Z axis; that is, the number of degrees by which the device is being twisted around the center of the screen. See Orientation and motion data explained for details.


A number.


DeviceOrientation Event Specification
# ref-for-dom-deviceorientationevent-alpha③

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See also