theomjones
8/21/2017 - 10:47 AM

Detect Scroll Direction on Window

Detect Scroll Direction on Window

let lastScrollTop = 0;

window.onscroll = () => {
	let currentScrollTop = window.scrollY || document.body.scrollTop;
	if (currentScrollTop > lastScrollTop) {
		console.log('Moving on down!');
    } else {
		console.log('Moving on up!');
	}
	lastScrollTop = currentScrollTop;
}