slowtwitch-news/assets/js/st-nav.js

//Nav slide in logic

const nav = document.querySelector('.st-nav');
const openButton = document.querySelector('.st-open-nav');
const closeButton = document.querySelector('.st-close-nav');

openButton.addEventListener('click', () => {
    nav.classList.add('st-nav-is-open');
});

closeButton.addEventListener('click', () => {
    nav.classList.remove('st-nav-is-open');
});

//Sticky nav logic

const iconBar = document.querySelector('.st-header-icon-bar');
const siteTitle = document.querySelector('.st-site-title');
const header = document.querySelector('.st-header');
let lastScrollPosition = 0;

window.addEventListener('scroll', function(event) {
    const scrollPosition = window.scrollY;

    if(scrollPosition < 5) {
        iconBar.classList.remove('st-icon-bar-sticky');
        siteTitle.classList.remove('st-title-scrolled');
        header.classList.remove('st-header-scrolled');
    } else {
        if(lastScrollPosition < 5) {
            iconBar.classList.add('st-icon-bar-sticky');
            siteTitle.classList.add('st-title-scrolled');
            header.classList.add('st-header-scrolled');
        } 
    }
    
    lastScrollPosition = scrollPosition;
});