[removed] How to detect if browser window is scrolled to bottom?

Question

I need to detect if a user is scrolled to the bottom of a page. If they are at the bottom of the page, when I add new content to the bottom, I will automatically scroll them

Answer 1

The accepted answer did not work for me. This did:

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

If you're looking to support older browsers (IE9) use the alias window.pageYOffset which has slightly better support.