const Effects = () => { const [count, setCount] = useState(0); useLayoutEffect(() => console.log("ogni render 1")); console.log("ogni render 2"); useEffect(() => console.log("ogni render 3")); return ( <> {count} <button onClick={() => setCount((prevProps) => ++prevProps)}> Incrementa </button> </> ); }; export default Effects; // 1 render: // Dopo clic: const Effects = () => { const [count, setCount] = useState(0); const [number, setNumber] = useState(0); useEffect(() => { console.log(count); return () => { console.log(count); }; }); return ( <> {count} <button onClick={() => setCount((prevProps) => ++prevProps)}> Incrementa </button> </> ); }; export default Effects; // 1 render: // 2 1 3 // Dopo clic: // 2 1 3 // return null: // 2 1 3 // // 1: 1, 0 // +: 1, 2 // ++: 2, 2