Function userAgent

Sortable.js:121–125

(pattern)

  var version = "1.15.7";

  function userAgent(pattern) {
    if (typeof window !== 'undefined' && window.navigator) {
      return !! /*@__PURE__*/navigator.userAgent.match(pattern);
    }
  }
  var IE11OrLess = userAgent(/(?:Trident.*rv[ :]?11\.|msie|iemobile|Windows Phone)/i);
  var Edge = userAgent(/Edge/i);
  var FireFox = userAgent(/firefox/i);