Fix the handler called during render — find the bug

function App() {
  const [msg, setMsg] = React.useState("")
  function handleClick() {
    setMsg("pressed")
  }
  return (
    <div>
      <p id="msg">{msg}</p>
      <button id="go" onClick={undefined}>press</button>
    </div>
  )
}
const root = ReactDOM.createRoot(document.getElementById("root"))
root.render(<App />)