Are there any examples of animation when scrolling from bottom to top?

Question

JavaScript

Good afternoon!
I'm interested in the question: are there any examples for familiarizing the animation when scrolling the page from the bottom up? without plugins.

Thanks in advance.

Answer 1

This? the question is just blurry and not clear

var body = $("html, body");
body.stop().animate({scrollTop:0}, 500, 'swing', function() { 
   alert("Finished animating");
});