Window: deviceorientation イベント

addEventListener("deviceorientation", (event) => {});
ondeviceorientation = (event) => {};

if (window.DeviceOrientationEvent) {
  window.addEventListener(
    "deviceorientation",
    (event) => {
      const rotateDegrees = event.alpha; // alpha: rotation around z-axis
      const leftToRight = event.gamma; // gamma: left to right
      const frontToBack = event.beta; // beta: front back motion
      handleOrientationEvent(frontToBack, leftToRight, rotateDegrees);
    },
    true,
  );
}
const handleOrientationEvent = (frontToBack, leftToRight, rotateDegrees) => {
  // do something amazing
};