rows count table

by Rapha Souza

HTML

<script src="//code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<link rel="stylesheet" href="//stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css">
<script src="//cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
<script src="//stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
<!-- 
  Bootstrap docs: https://getbootstrap.com/docs
-->

<div class="container">
  <div class="row">
    <div class="col" >
     <a id="TotalSolicitacoes"></a>
    </div>
  
  </div>
  <div class="row">
    <div class="col">
     <table class="table" id="myTable">
  <tr>
    <td>cell 1</td>
    <td>cell 2</td>
  </tr>
  <tr>
    <td>cell 3</td>
    <td>cell 4</td>
  </tr>
   <tr>
    <td>cell 3</td>
    <td>cell 4</td>
  </tr>
</table>
    </div>
 
    <div class="col">
     <button onclick="contaSolicitacoes()">
     Click
     </button>
    </div>
  </div>  
</div>

CSS

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

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

JavaScript

function contaSolicitacoes() {

  var tableSolicitacoes = document.getElementsByClassName("table");
 var numLinhas = tableSolicitacoes[0].rows.length;
 var TotalLinhas = numLinhas - 1;
document.getElementById("TotalSolicitacoes").innerHTML  = TotalLinhas;
console.log("contaSolicitacoes " + TotalLinhas)
}