[Internet Explorer check] Check if the browser is Internet Explorer #ie #fallback

_ie-check.js

function is_ie() {
  const UA = window.navigator.userAgent;
  const MS_IE = UA.indexOf("MSIE ");

  if (MS_IE > 0 || !!navigator.userAgent.match(/Trident.*rv\:11\./))  {
      return true;
  }

  return false;
}

module.exports = { is_ie };