JSFiddle - React, Tailwind, and code Playground

HTML

<div id="test">REsult</div>

JavaScript

var a =0
for(var i=0;i<1000;i++)
{
    $("#test").append(" ABC-"+pad(i,4))
}


function pad(n, width, z) {
  z = z || '0';
  n = n + '';
  return n.length >= width ? n : new Array(width - n.length + 1).join(z) + n;
}