DeviceOrientationEvent.alpha - Web APIs 编辑

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.

Syntax

var alpha = instanceOfDeviceOrientationEvent.alpha;

Specifications

Browser compatibility

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See also

• DeviceOrientationEvent
• Detecting device orientation
• Orientation and motion data explained
• window.ondeviceorientation
• deviceorientation