JSFiddle - React, Tailwind, and code Playground

by dhaval dave

HTML

<samp id="priceid" class="price">25</samp>
<input type="text" name="qty" id="qty" value="2">

JavaScript

var singleprodctprice;
jQuery(document).ready(function() {
  var user_price_default = document.getElementById("priceid").innerHTML;
  var user_qty_default = jQuery("#qty").val();
  if (user_qty_default == "") {
    user_qty_default = 1;
  }
  singleprodctprice = user_price_default / user_qty_default;
  jQuery("#qty").change(function() {
    var newqty = jQuery("#qty").val();
    singleprodctprice_new = singleprodctprice * newqty;
    jQuery(".price").html(singleprodctprice_new);
  });
});