hawkband-wled-client/components/ScreenSize.js

import { useEffect, useState } from "react";

const useScreenSize = () => {
  const [screenSize, setScreenSize] = useState({
    width: 1024,
    height: 768
  }); // assume 1024x768 initial

  useEffect(() => {
    const handleResize = () => {
      setScreenSize({
        width: window?.innerWidth,
        height: window?.innerHeight
      });
    };
    handleResize(); // set the size on load
    window.addEventListener("resize", handleResize);
    return () => {
      window.removeEventListener("resize", handleResize);
    };
  }, []);

  return screenSize;
};

export default useScreenSize;