Acara Gulir Melambung JS MDN
// Reference: http://www.html5rocks.com/en/tutorials/speed/animations/
let lastKnownScrollPosition = 0;
let ticking = false;
function doSomething(scrollPos) {
// Do something with the scroll position
}
document.addEventListener('scroll', function(e) {
lastKnownScrollPosition = window.scrollY;
if (!ticking) {
window.requestAnimationFrame(function() {
doSomething(lastKnownScrollPosition);
ticking = false;
});
ticking = true;
}
});
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