Function setPanel

packages/dev/s2-docs/pages/s2/home/ExampleApp2.tsx:77–80

(panel: Key | null)

  let [isLarge, setLarge] = useState(true);

  let setPanel = (panel: Key | null) => {
    onPanelChange?.(panel);
    setSelectedPanel(panel);
  };

  let ref = useRef<HTMLDivElement | null>(null);
  useResizeObserver({