the selectstart event seems to have event.currentTarget.inputSources[0].gamepad.axes in the range [-1, -1] to [1, 1], where 0,0 is the middle of the screen

• can I stash the inputSources[0] in a global variable somewhere and poll it every frame?
  • read https://www.w3.org/TR/webxr-gamepads-module-1/ (pointed to by https://immersive-web.github.io/webxr/#xrinputsource)?
  • just try it and see?