function Example() {
  const [x,setX] = React.useState(0)
  const count = React.useRef(0);
  function handleAlertClick() {
    setTimeout(() => {
      alert('You clicked on: ' + count.current);
    }, 3000);
  }
  return (
    <div>
      <p>You clicked {count.current} times</p>
      <button onClick={() => {count.current++; setX(x=>(x+1))}}>
        Click me
      </button>
      <button onClick={handleAlertClick}>
        Show alert
      </button>
    </div>
  );}ReactDOM.render(<Example/>,document.querySelector("div"));