show()

in js/bootstrap.bundle.js [3621:3648]

• 23 lines of code
• 7 McCabe index (conditional complexity)

    show() {
      if (isDisabled(this._element) || this._isShown()) {
        return;
      }
      const relatedTarget = {
        relatedTarget: this._element
      };
      const showEvent = EventHandler.trigger(this._element, EVENT_SHOW$5, relatedTarget);
      if (showEvent.defaultPrevented) {
        return;
      }
      this._createPopper();

      // If this is a touch-enabled device we add extra
      // empty mouseover listeners to the body's immediate children;
      // only needed because of broken event delegation on iOS
      // https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html
      if ('ontouchstart' in document.documentElement && !this._parent.closest(SELECTOR_NAVBAR_NAV)) {
        for (const element of [].concat(...document.body.children)) {
          EventHandler.on(element, 'mouseover', noop);
        }
      }
      this._element.focus();
      this._element.setAttribute('aria-expanded', true);
      this._menu.classList.add(CLASS_NAME_SHOW$6);
      this._element.classList.add(CLASS_NAME_SHOW$6);
      EventHandler.trigger(this._element, EVENT_SHOWN$5, relatedTarget);
    }