Tiny React Hooks

A quick note containing a tiny hook example and reactivity mindset.

Hook example

import { useState, useEffect } from "react";

function useWindowWidth() {
  const [width, setWidth] = useState(window.innerWidth);

  useEffect(() => {
    const handleResize = () => setWidth(window.innerWidth);
    window.addEventListener("resize", handleResize);
    return () => window.removeEventListener("resize", handleResize);
  }, []);

  return width;
}

Keep hooks small and focused. This example is a useful reminder that many utility hooks can be reused across notes and UI components.