off()

in applications/clouddemo/net4/CloudDemo.Mvc/Scripts/bootstrap.bundle.js [496:531]

• 29 lines of code
• 12 McCabe index (conditional complexity)

    off(element, originalTypeEvent, handler, delegationFunction) {
      if (typeof originalTypeEvent !== 'string' || !element) {
        return;
      }

      const [isDelegated, callable, typeEvent] = normalizeParameters(originalTypeEvent, handler, delegationFunction);
      const inNamespace = typeEvent !== originalTypeEvent;
      const events = getElementEvents(element);
      const storeElementEvent = events[typeEvent] || {};
      const isNamespace = originalTypeEvent.startsWith('.');

      if (typeof callable !== 'undefined') {
        // Simplest case: handler is passed, remove that listener ONLY.
        if (!Object.keys(storeElementEvent).length) {
          return;
        }

        removeHandler(element, events, typeEvent, callable, isDelegated ? handler : null);
        return;
      }

      if (isNamespace) {
        for (const elementEvent of Object.keys(events)) {
          removeNamespacedHandlers(element, events, elementEvent, originalTypeEvent.slice(1));
        }
      }

      for (const keyHandlers of Object.keys(storeElementEvent)) {
        const handlerKey = keyHandlers.replace(stripUidRegex, '');

        if (!inNamespace || originalTypeEvent.includes(handlerKey)) {
          const event = storeElementEvent[keyHandlers];
          removeHandler(element, events, typeEvent, event.callable, event.delegationSelector);
        }
      }
    },