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alarrosa14/scroll-listener.js

Created April 3, 2017 20:13
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60FPS onscroll event listener
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scroll-listener.js
(function() {
var lastScrollY = 0;
var ticking = false;
var update = function() {
// do your stuff
ticking = false;
};
var requestTick = function() {
if (!ticking) {
window.requestAnimationFrame(update);
ticking = true;
}
};
var onScroll = function() {
lastScrollY = window.scrollY;
requestTick();
};
$(window).on('scroll', onScroll);
})();
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