Adicionar dias a data

by Rapha Souza

HTML

<script src="https://code.jquery.com/jquery-3.4.1.slim.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.css">
<!-- 
  Bootstrap docs: https://getbootstrap.com/docs
-->

<div class="container">
  <div class="row">
    <div class="col">
      1 of 2
    </div>
    <div class="col">
      2 of 2
    </div>
  </div>
  <div class="row">
    <div class="col">
      1 of 3
    </div>
    <div class="col">
      2 of 3
    </div>
    <div class="col">
      <input type="date" id="dataReturn">
    </div>
  </div>  
</div>

CSS

.row {
  background: #f8f9fa;
  margin-top: 20px;
}

.col {
  border: solid 1px #6c757d;
  padding: 10px;
}

JavaScript

function adicionarDiasData(dias){
dias = 5
  var hoje        = new Date();
  var dataVenc    = new Date(hoje.getTime() + (dias * 24 * 60 * 60 * 1000));

var dia = dataVenc.getDate();

console.log(dia.length)


  return dataVenc.getFullYear() + "-" + (dataVenc.getMonth() + 1) + "-" + dia
  
}
 
var novaData = adicionarDiasData(5);
$("#dataReturn").val(novaData)

console.log(novaData);