show()

in src/site/assets/js/bootstrap.bundle.js [6373:6416]

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

    show() {
      if (this._element.parentNode && this._element.parentNode.nodeType === Node.ELEMENT_NODE && this._element.classList.contains(CLASS_NAME_ACTIVE)) {
        return;
      }

      let previous;
      const target = getElementFromSelector(this._element);

      const listElement = this._element.closest(SELECTOR_NAV_LIST_GROUP);

      if (listElement) {
        const itemSelector = listElement.nodeName === 'UL' || listElement.nodeName === 'OL' ? SELECTOR_ACTIVE_UL : SELECTOR_ACTIVE;
        previous = SelectorEngine.find(itemSelector, listElement);
        previous = previous[previous.length - 1];
      }

      const hideEvent = previous ? EventHandler.trigger(previous, EVENT_HIDE$1, {
        relatedTarget: this._element
      }) : null;
      const showEvent = EventHandler.trigger(this._element, EVENT_SHOW$1, {
        relatedTarget: previous
      });

      if (showEvent.defaultPrevented || hideEvent !== null && hideEvent.defaultPrevented) {
        return;
      }

      this._activate(this._element, listElement);

      const complete = () => {
        EventHandler.trigger(previous, EVENT_HIDDEN$1, {
          relatedTarget: this._element
        });
        EventHandler.trigger(this._element, EVENT_SHOWN$1, {
          relatedTarget: previous
        });
      };

      if (target) {
        this._activate(target, target.parentNode, complete);
      } else {
        complete();
      }
    } // Private