Function _delay

codebase/sources/dhtmlxscheduler.js:14137–14146

(method, object, params, delay2)

        }
      };
      let _delay = function(method, object, params, delay2) {
        setTimeout(function() {
          if (scheduler2.$destroyed) {
            return true;
          }
          let ret = method.apply(object, params);
          method = object = params = null;
          return ret;
        }, delay2 || 1);
      };
      scheduler2._event_resolve_delay = 1500;
      scheduler2.attachEvent("onEventLoading", function(event2) {
        if (event2.lat && event2.lng) {