isWebKit, supportsTouch, SupportsIEPoiner, isChrome Checks in JS

const env = {
  isWebKit:
    typeof document !== 'undefined' &&
    'WebkitAppearance' in document.documentElement.style,
  supportsTouch:
    typeof window !== 'undefined' &&
    ('ontouchstart' in window ||
      (window.DocumentTouch && document instanceof window.DocumentTouch)),
  supportsIePointer:
    typeof navigator !== 'undefined' && navigator.msMaxTouchPoints,
  isChrome:
    typeof navigator !== 'undefined' &&
    /Chrome/i.test(navigator && navigator.userAgent),
};