React Playgroundmain.tsx
App.tsx
App.css
+
import-map.json
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import React, { useState } from 'react';
import './App.css';
const App:React.FC = () => {
const [count, setCount] = useState(0);
return (
<>
<h1>Hello React</h1>
<div className="card">
<button onClick={() => setCount((count) => count + 1)}>count is {count}</button>
</div>
</>
);
};
export default App;