Function App

demos/test-fc/main.tsx:4–13

()

import ReactDOM from 'react-dom';

function App() {
	const [num, update] = useState(100);
	return (
		<ul onClick={() => update(50)}>
			{new Array(num).fill(0).map((_, i) => {
				return <Child key={i}>{i}</Child>;
			})}
		</ul>
	);
}

function Child({ children }) {
	const now = performance.now();