JSFiddle - React, Tailwind, and code Playground

by Anto King

HTML

<input id="box20" name="rooms[]" value="20" class="box" type="checkbox">
<div>68.00</div> € / night
<input id="box21" name="rooms[]" value="21" checked="checked" class="box" type="checkbox">
<div class="specialprice">68.00</div>€ / night
<input id="box22" name="rooms[]" value="22" class="box" type="checkbox">                                                        
<div>155.00</div> € / night

<h4>Total: <div class="newprice"></div></h4>

JavaScript

$(document).ready(function(){
        var addPrice;
$('.newprice').text(function(){
  return $('.specialprice').each(function(){
      addPrice += parseInt($(this).text(),10);
  });
});
    });