import { useEffect, useState } from "react";

    const NavBar = () => {
    // sticky nav
    const [stickyClass, setStickyClass] = useState("");

    function stickNavbar() {
        let windowHeight = window.scrollY;
        setStickyClass("sticky-nav") ? windowHeight > 500 : setStickyClass("");
    }

    useEffect(() => {
        window.addEventListener("scroll", stickNavbar);
    }, []);

return (