show()

in Legacy.Monolith/Scripts/bootstrap.bundle.js [1682:1766]
62 lines of code
15 McCabe index (conditional complexity)

    show() {
      if (this._isTransitioning || this._element.classList.contains(CLASS_NAME_SHOW$8)) {
        return;
      }

      let actives;
      let activesData;

      if (this._parent) {
        actives = SelectorEngine.find(SELECTOR_ACTIVES, this._parent).filter(elem => {
          if (typeof this._config.parent === 'string') {
            return elem.getAttribute('data-bs-parent') === this._config.parent;
          }

          return elem.classList.contains(CLASS_NAME_COLLAPSE);
        });

        if (actives.length === 0) {
          actives = null;
        }
      }

      const container = SelectorEngine.findOne(this._selector);

      if (actives) {
        const tempActiveData = actives.find(elem => container !== elem);
        activesData = tempActiveData ? Collapse.getInstance(tempActiveData) : null;

        if (activesData && activesData._isTransitioning) {
          return;
        }
      }

      const startEvent = EventHandler.trigger(this._element, EVENT_SHOW$5);

      if (startEvent.defaultPrevented) {
        return;
      }

      if (actives) {
        actives.forEach(elemActive => {
          if (container !== elemActive) {
            Collapse.collapseInterface(elemActive, 'hide');
          }

          if (!activesData) {
            Data.set(elemActive, DATA_KEY$8, null);
          }
        });
      }

      const dimension = this._getDimension();

      this._element.classList.remove(CLASS_NAME_COLLAPSE);

      this._element.classList.add(CLASS_NAME_COLLAPSING);

      this._element.style[dimension] = 0;

      if (this._triggerArray.length) {
        this._triggerArray.forEach(element => {
          element.classList.remove(CLASS_NAME_COLLAPSED);
          element.setAttribute('aria-expanded', true);
        });
      }

      this.setTransitioning(true);

      const complete = () => {
        this._element.classList.remove(CLASS_NAME_COLLAPSING);

        this._element.classList.add(CLASS_NAME_COLLAPSE, CLASS_NAME_SHOW$8);

        this._element.style[dimension] = '';
        this.setTransitioning(false);
        EventHandler.trigger(this._element, EVENT_SHOWN$5);
      };

      const capitalizedDimension = dimension[0].toUpperCase() + dimension.slice(1);
      const scrollSize = `scroll${capitalizedDimension}`;

      this._queueCallback(complete, this._element, true);

      this._element.style[dimension] = `${this._element[scrollSize]}px`;
    }