JAVASCRIPT

javascript detect scroll to bottom of page

window.onscroll = function(ev) {
    if ((window.innerHeight + window.scrollY) >= document.body.scrollHeight) {
        // you're at the bottom of the page
    }
};

automatically scroll to bottom of page javascript

setInterval(function(){ 
	$('html, body').animate({ scrollTop: $(document).height() - $(window).height() }, 1500, function() {
	 $(this).animate({ scrollTop: 0 }, 1500);
});
}, 2000);//run this thang every 2 seconds

js scroll to bottom exact

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);

How to scroll automatically to the Bottom of the Page using javascript

const scrollingElement = (document.scrollingElement || document.body);
scrollingElement.scrollTop = scrollingElement.scrollHeight;

How to scroll automatically to the Bottom of the Page using javascript

window.scrollTo(0, document.body.scrollHeight);