This code snippet makes a web page scroll smoothly from top to bottom. Adjust the `speed` variable according to your preference. Copy and paste it into your browser console to start.

auto_scroll.js

(function(){
  let speed = 1;
  function autoScroll(){
    window.scrollBy(0,speed);
    if((window.innerHeight+window.scrollY)<document.body.offsetHeight){
      requestAnimationFrame(autoScroll);
    }
  }
  autoScroll();
})();