DeviceOrientationEvent.alpha

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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

Specification Status Comment
DeviceOrientation Event Specification Editor's Draft Initial specification.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
alpha
Experimental
Chrome Full support 7Edge Full support 12Firefox Full support 6IE ? Opera Full support YesSafari ? WebView Android Full support YesChrome Android Full support YesFirefox Android Full support 6Opera Android No support NoSafari iOS Full support 4.2Samsung Internet Android Full support Yes

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.

See also