off()

in src/site/assets/js/bootstrap.bundle.js [513:548]

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

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

      const [delegation, originalHandler, typeEvent] = normalizeParams(originalTypeEvent, handler, delegationFn);
      const inNamespace = typeEvent !== originalTypeEvent;
      const events = getEvent(element);
      const isNamespace = originalTypeEvent.startsWith('.');

      if (typeof originalHandler !== 'undefined') {
        // Simplest case: handler is passed, remove that listener ONLY.
        if (!events || !events[typeEvent]) {
          return;
        }

        removeHandler(element, events, typeEvent, originalHandler, delegation ? handler : null);
        return;
      }

      if (isNamespace) {
        Object.keys(events).forEach(elementEvent => {
          removeNamespacedHandlers(element, events, elementEvent, originalTypeEvent.slice(1));
        });
      }

      const storeElementEvent = events[typeEvent] || {};
      Object.keys(storeElementEvent).forEach(keyHandlers => {
        const handlerKey = keyHandlers.replace(stripUidRegex, '');

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