ReactCounter.tsx — astro Source File

Source Code

/** @jsxImportSource react */

import { type ReactNode, useState } from 'react';

/** A counter written with React */
export function Counter({ children }: { children?: ReactNode }) {
	const [count, setCount] = useState(0);
	const add = () => setCount((i) => i + 1);
	const subtract = () => setCount((i) => i - 1);

	return (
		<>
			<div className="counter">
				<button onClick={subtract}>-</button>
				<pre>{count}</pre>
				<button onClick={add}>+</button>
			</div>
			<div className="counter-message">{children}</div>
		</>
	);
}