Scroll to top of the page

In general, you can scroll to a point whose coordinates indicates the distance from it to the top and left side of document. So, the following code scrolls to top of the page:

// window.scrollTo(pageX, pageY);

window.scrollTo(0, 0);

Utilizing this snippet, you can add a button at the bottom of page that allows user to scroll to the top quickly.

Source

https://htmldom.dev/scroll-to-top-of-the-page/