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    DeviceOrientationEvent.alpha

    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
    Device Orientation Events Working Draft Initial specification.

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
    Basic support 7.0 6 [1] ? ? ?
    Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
    Basic support 3.0 6 [1] Not supported Not supported 4.2

    [1] Firefox 3.6, 4, and 5 supported mozOrientation instead of the standard DeviceOrientationEvent interface

    See also

    Document Tags and Contributors

    Tags: 
     Contributors to this page: fscholz, jsx, teoli, kscarfone, Jeremie, Sheppy, kohei.yoshino
     Last updated by: fscholz,