id

function getUUID() {
    var COOKIE_NAME = "gbuuid";
    var COOKIE_DAYS = 400;
    var genUUID = function genUUID() {
      var d = new Date().getTime();
      var d2 = ((typeof performance !== 'undefined') && performance.now && (performance.now() * 1000)) || 0;
      return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
        var r = Math.random() * 16;
        if (d > 0) {
          r = (d + r) % 16 | 0;
          d = Math.floor(d / 16);
        } else {
          r = (d2 + r) % 16 | 0;
          d2 = Math.floor(d2 / 16);
        }
        return (c === 'x' ? r : (r & 0x3 | 0x8)).toString(16);
      });
    }
    var getCookie = function getCookie(name) {
      var value = "; ".concat(document.cookie);
      var parts = value.split("; ".concat(name, "="));
      if (parts.length === 2) return parts.pop().split(';').shift();
    };
    var setCookie = function setCookie(name, value) {
      var d = new Date();
      d.setTime(d.getTime() + 24 * 60 * 60 * 1000 * COOKIE_DAYS);
      document.cookie = name + "=" + value + ";path=/;expires=" + d.toGMTString();
    };
    if (getCookie(COOKIE_NAME)) return getCookie(COOKIE_NAME);
    var uuid = genUUID();
    setCookie(COOKIE_NAME, uuid);
    return uuid;
  };

getUUID();