JSFiddle - React, Tailwind, and code Playground

HTML

<div class="demo">14214</div>
<div class="demo">23455</div>
<div class="demo">45645</div>
<div class="demo">76554</div>
<div class="demo">77655</div>

JavaScript

$.each($('.demo'), function (index, value) { 

var number = parseInt($(this).text());
var addcommas = new Intl.NumberFormat().format(number);

var adddots = addcommas.toString().replace(',', '.');

$(this).innerHTML = adddots;

});