JSFiddle - React, Tailwind, and code Playground

CSS

.hidden {
    display: none;
}

JavaScript

var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZ";
var string_length = 32;
var num_chars = chars.length;
var result = '';

while(string_length--) {
    result += chars[Math.floor(Math.random() * num_chars)];
    $('body').append(result+'<br>');
}
$('body').prepend(result + '<br>');