PreactCounter.tsx — astro Source File

Source Code

import { Fragment, h } from 'preact';
import { useState } from 'preact/hooks';

/** a counter written in Preact */
export default function PreactCounter() {
  const [count, setCount] = useState(0);
  const add = () => setCount((i) => i + 1);
  const subtract = () => setCount((i) => i - 1);

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