JSFiddle - React, Tailwind, and code Playground

JavaScript

for(i=0; i<100;i++){
   br=document.createElement('br');
   div=document.createElement('div');
    div.innerHTML='.';
    document.body.appendChild(div);
    document.body.appendChild(br);
}

document.body.onscroll= function(){
console.log( document.body.scrollTop || document.documentElement.scrollTop )
}