useEffect na montagem
Array de deps vazio + cleanup.
useEffect(() => {
const id = window.setInterval(() => console.log('tick'), 1000);
return () => window.clearInterval(id);
}, []);
Cleanup evita vazamento de timers.
Array de deps vazio + cleanup.
useEffect(() => {
const id = window.setInterval(() => console.log('tick'), 1000);
return () => window.clearInterval(id);
}, []);
Cleanup evita vazamento de timers.