javascript auto scroll on overflow to bottom

1let objDiv = document.getElementById("divExample");
2objDiv.scrollTop = objDiv.scrollHeight;

1window.setInterval(function() {
2  var elem = document.getElementById('data');
3  elem.scrollTop = elem.scrollHeight;
4}, 5000);
5

1const scrollToTop = () => {
2  const scrollTopButton = document.getElementById('scrollTopButton');
3
4  scrollTopButton.addEventListener('click', () => {
5    window.scrollTo(0, document.body.scrollHeight);
6  });
7};