The hasOrientation read-only property of the VRDisplayCapabilities interface returns a Boolean stating whether the VR display can track and return orientation information.

API Experimental hasOrientation Property Reference Virtual Reality VR VRDisplayCapabilities WebVR

The hasOrientation read-only property of the VRPositionState interface returns a boolean indicating whether the VRPositionState.orientation property is valid (i.e. if the hardware is currently registering a valid orientation). If it is false, the orientation property will return null.

API Experimental Expérimental hasOrientation Obsolete Property Reference Référence Virtual Reality VR VRPositionState WebVR