/**
 * Module exports.
 */

module.exports = touchActionProperty();

/**
 * Returns "touchAction", "msTouchAction", or null.
 */

function touchActionProperty(doc) {
  if (!doc) doc = document;
  var div = doc.createElement('div');
  var prop = null;
  if ('touchAction' in div.style) prop = 'touchAction';
  else if ('msTouchAction' in div.style) prop = 'msTouchAction';
  div = null;
  return prop;
}