https://www.cumhuriyetdaily.com/Content/ErrorPages/assets/js/main.js

1"use strict";
2/* Header */
3
4const header = document.querySelector("header");
5const mobileMenu = document.querySelector(".mobileMenu");
6const links = mobileMenu.querySelectorAll("a");
7const menuButton = document.querySelector(".menuButton");
8
9let isMenuActive = !1;
10(menuButton.onclick = function () {
11  menuButton.classList.toggle("menuButtonActive"),
12    mobileMenu.classList.toggle("mobileMenuActive"),
13    (isMenuActive = !isMenuActive);
14}),
15  links.forEach(function (e) {
16    return (e.onclick = function () {
17      menuButton.classList.remove("menuButtonActive"),
18        mobileMenu.classList.remove("mobileMenuActive");
19    });
20  });
21let prevPos = window.scrollY;
22prevPos > 5 && header.classList.add("hide"),
23  (window.onscroll = () => {
24    let e = window.scrollY;
25    e && e > 1 ? header.classList.add("hide") : header.classList.remove("hide"),
26      (prevPos = e);
27  });