Alert using Jquery when Scroll to end of Page

Question

Is there a way to find out page end using Jquery, so that a simple message can be displayed saying you have reached end of the page.

Answer 1

How to tell when you're at the bottom of a page:

if (  document.documentElement.clientHeight + 
      $(document).scrollTop() >= document.body.offsetHeight )
{ 
    // Display alert or whatever you want to do when you're 
    //   at the bottom of the page. 
    alert("You're at the bottom of the page.");
}

Of course you want to fire the above whenever the user scrolls:

$(window).scroll(function() {
    if (  document.documentElement.clientHeight + 
          $(document).scrollTop() >= document.body.offsetHeight )
    { 
        // Display alert or whatever you want to do when you're 
        //   at the bottom of the page. 
        alert("You're at the bottom of the page.");
    }
});

Here is a jsFiddle example that fades in a "You're Done! Scroll to Top of Page" link when the user has scrolled to the bottom of the page.

References:

• .scroll()
• .scrollTop()
• offsetHeight
• clientHeight