import {useState} from 'react';
const App = () => {
const [num, setNum] = useState('');
const handleNumChange = event => {
const limit = 4;
setNum(event.target.value.slice(0, limit));
};
console.log(num);
return (
<div>
<h2>123456789</h2>
<input
type="number"
id="num"
name="num"
value={num}
onChange={handleNumChange}
/>
</div>
);
};
export default App;