useWindowSize

JS 
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import { useState, useEffect } from "react";

export default function useWindowSize() {
  const isClient = typeof window === "object";

  function getSize() {
    return {
      width: isClient ? window.innerWidth : undefined,
      height: isClient ? window.innerHeight : undefined,
    };
  }

  const [windowSize, setWindowSize] = useState(getSize);

  useEffect(() => {
  
    function handleResize() {
      setWindowSize(getSize());
    }

    window.addEventListener("resize", handleResize);
    return () => window.removeEventListener("resize", handleResize);
  }, []); // Empty array ensures that effect is only run on mount and unmount

  return windowSize;
}