window.onscroll = function(ev) {
if ((window.innerHeight + window.scrollY) >= document.body.scrollHeight) {
// you're at the bottom of the page
}
};
setInterval(function(){
$('html, body').animate({ scrollTop: $(document).height() - $(window).height() }, 1500, function() {
$(this).animate({ scrollTop: 0 }, 1500);
});
}, 2000);//run this thang every 2 seconds
var notChangedStepsCount = 0;
var scrollInterval = setInterval(function() {
var element = document.querySelector(".element-selector");
if (element) {
// element found
clearInterval(scrollInterval);
element.scrollIntoView();
} else if((document.documentElement.scrollTop + window.innerHeight) != document.documentElement.scrollHeight) {
// no element -> scrolling
notChangedStepsCount = 0;
document.documentElement.scrollTop = document.documentElement.scrollHeight;
} else if (notChangedStepsCount > 20) {
// no more space to scroll
clearInterval(scrollInterval);
} else {
// waiting for possible extension (autoload) of the page
notChangedStepsCount++;
}
}, 50);
const scrollingElement = (document.scrollingElement || document.body);
scrollingElement.scrollTop = scrollingElement.scrollHeight;
window.scrollTo(0, document.body.scrollHeight);