রিয়েক্ট useLayoutEffect

import {createRoot} from "react-dom/client";
import React, {useLayoutEffect, useRef, useState} from "react";

function App() {
  const box = useRef(null);
  const [width, setWidth] = useState(0);

  useLayoutEffect(() => {
    setWidth(box.current.offsetWidth);
  }, []);

  return (
    <div>
      <div ref={box}>উইথ</div>
      <p>{width}px</p>
    </div>
  );
}

createRoot(
  document.getElementById("root")
).render(<App/>);