JSFiddle - React, Tailwind, and code Playground

HTML

<div id="dados">
    <div id="total">
        
    </div>    
</div>

JavaScript

Number.prototype.formatMoney = function(c, d, t){
    var n = this, 
    c = isNaN(c = Math.abs(c)) ? 2 : c, 
    d = typeof d == "undefined" ? "." : d, 
    t = typeof t == "undefined" ? "," : t, 
    s = n < 0 ? "-" : "", 
    i = parseInt(n = Math.abs(+n || 0).toFixed(c)) + "", 
    j = (j = i.length) > 3 ? j % 3 : 0;
   return s + (j ? i.substr(0, j) + t : "") + i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + t) + (c ? d + Math.abs(n - i).toFixed(c).slice(2) : "");
 };

var total = 100;

$("#dados #total").html("R$ "+(parseFloat(total)).formatMoney(2, ',', '.'));