DeviceOrientationEvent: alpha property
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2023.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
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.
Value
A number.
Specifications
| Specification |
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| Device Orientation and Motion # dom-deviceorientationevent-alpha |
Browser compatibility
| desktop | mobile | |||||||||||
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Legend
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- Full support
- Full support