Function trigger

aspnet-samples/AspNetForm/Scripts/bootstrap.js:497–529

(element, event, args)

      }
    },
    trigger(element, event, args) {
      if (typeof event !== 'string' || !element) {
        return null;
      }
      const $ = getjQuery();
      const typeEvent = getTypeEvent(event);
      const inNamespace = event !== typeEvent;
      let jQueryEvent = null;
      let bubbles = true;
      let nativeDispatch = true;
      let defaultPrevented = false;
      if (inNamespace && $) {
        jQueryEvent = $.Event(event, args);
        $(element).trigger(jQueryEvent);
        bubbles = !jQueryEvent.isPropagationStopped();
        nativeDispatch = !jQueryEvent.isImmediatePropagationStopped();
        defaultPrevented = jQueryEvent.isDefaultPrevented();
      }
      const evt = hydrateObj(new Event(event, {
        bubbles,
        cancelable: true
      }), args);
      if (defaultPrevented) {
        evt.preventDefault();
      }
      if (nativeDispatch) {
        element.dispatchEvent(evt);
      }
      if (evt.defaultPrevented && jQueryEvent) {
        jQueryEvent.preventDefault();
      }
      return evt;
    }
  };
  function hydrateObj(obj, meta = {}) {
    for (const [key, value] of Object.entries(meta)) {