Advanced Hook Official

Now in DevTools, your hook displays FriendStatus: "Online" instead of an opaque value. Consider a dashboard that subscribes to a WebSocket stream, processes messages with expensive filtering, and exposes controls to pause/resume.

Now go forth, abstract wisely, and may your dependency arrays always be complete. advanced hook

Now any component can add debounced search with two lines of code. Custom hooks compose other advanced hooks, hiding complexity beautifully. Even advanced developers fall into traps: Now in DevTools, your hook displays FriendStatus: "Online"

function useDashboardStream(url, filterFn) const [data, setData] = useState([]); const [isPaused, setIsPaused] = useState(false); const processedData = useMemo(() => return filterFn ? data.filter(filterFn) : data; , [data, filterFn]); useEffect(() => if (isPaused) return; const ws = new WebSocket(url); ws.onmessage = (event) => setData(prev => [...prev, JSON.parse(event.data)]); ; return () => ws.close(); , [url, isPaused]); Now any component can add debounced search with