is-touch-device/src/index.js

Is the current JS environment a touch device?

export default function isTouchDevice() {
  return (
    !!(typeof window !== 'undefined' &&
      ('ontouchstart' in window ||
        (window.DocumentTouch &&
          typeof document !== 'undefined' &&
          document instanceof window.DocumentTouch))) ||
    !!(typeof navigator !== 'undefined' &&
      (navigator.maxTouchPoints || navigator.msMaxTouchPoints))
  );
}