404-error.js

// NAVIGATION PANEL
let navMenu = document.getElementById("nav-menu"),
    navToggle = document.getElementById("nav-toggle"),
    navClose = document.getElementById("nav-close");

// MENU SHOW
if (navToggle) {
    navToggle.addEventListener("click", () => {
        navMenu.classList.add("show-menu");
    });
}

// MENU HIDDEN
if (navClose) {
    navClose.addEventListener("click", () => {
        navMenu.classList.remove("show-menu");
    });
}

// REMOVE MENU MOBILE
const navLink = document.querySelectorAll(".nav_link");

function linkAction() {
    navMenu = document.getElementById("nav-menu");
    navMenu.classList.remove("show-menu");
}
navLink.forEach((n) => n.addEventListener("click", linkAction));

// HEADER SHADOW
function scrollHeader() {
    const nav = document.getElementById("header");
    if (this.scrollY >= 80) nav.classList.add("scroll-header");
    else nav.classList.remove("scroll-header");
}
window.addEventListener("scroll", scrollHeader);

// DARK/LIGHT THEME
const themeButton = document.getElementById("theme-button");
const darkTheme = "dark-theme";
const iconTheme = "uil-sun";

// Previously selected topic (if user selected)
const selectedTheme = localStorage.getItem("selected-theme");
const selectedIcon = localStorage.getItem("selected-icon");

// obtain the current theme
const getCurrentTheme = () =>
    document.body.classList.contains(darkTheme) ? "dark" : "light";
const getCurrentIcon = () =>
    themeButton.classList.contains(iconTheme) ? "uil-moon" : "uil-sun";

if (selectedTheme) {
    document.body.classList[selectedTheme === "dark" ? "add" : "remove"](
        darkTheme
    );
    themeButton.classList[selectedIcon === "uil-moon" ? "add" : "remove"](
        iconTheme
    );
}

// Activate/Deactivate the theme manually with the button
themeButton.addEventListener("click", () => {
    // Add or remove the dark icon/theme
    document.body.classList.toggle(darkTheme);
    themeButton.classList.toggle(iconTheme);
    // We save the theme and the current icon that the user chose
    localStorage.setItem("selected-theme", getCurrentTheme());
    localStorage.setItem("selected-icon", getCurrentIcon());
});