Fix React Hooks Stale States.jsx

// From https://reactjs.org/docs/hooks-faq.html#what-can-i-do-if-my-effect-dependencies-change-too-often


function Counter() {
  const [count, setCount] = useState(0);

  useEffect(() => {
    const id = setInterval(() => {
      setCount(count + 1); // This effect depends on the `count` state
    }, 1000);
    return () => clearInterval(id);
  }, []); // 🔴 Bug: `count` is not specified as a dependency

  return <h1>{count}</h1>;
}


function Counter() {
  const [count, setCount] = useState(0);

  useEffect(() => {
    const id = setInterval(() => {
      setCount(c => c + 1); // ✅ This doesn't depend on `count` variable outside
    }, 1000);
    return () => clearInterval(id);
  }, []); // ✅ Our effect doesn't use any variables in the component scope

  return <h1>{count}</h1>;
}