Javascript DOM HTML TableRow sectionRowIndex Property get for thead, tbody, and tfoot

Introduction

Return the position of the rows in the thead, tbody, and tfoot rows collection:

Click the button to return the position of the rows in the thead, tbody, and tfoot rows collection.

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<!DOCTYPE html>
<html>
<head>
<style>
table, td {
  border: 1px solid black;
}
</style>/*from w ww.  j  a  va2 s. c o  m*/
</head>
<body>

<table>
  <thead>
    <tr>
      <th>Row 1</th>
    </tr>
    <tr>
      <th>Row 2</th>
    </tr>
    </thead>
    <tbody>
    <tr>
      <td>Row 3</td>
    </tr>
    <tr>
      <td>Row 4</td>
    </tr>
    </tbody>
    <tfoot>
    <tr>
      <td>Row 5</td>
    </tr>
    <tr>
      <td>Row 6</td>
    </tr>
  </tfoot>
</table>
<p id="demo"></p>

<button onclick="myFunction()">Test</button>

<script>
function myFunction() {
  var x = document.getElementsByTagName("tr");
  var txt = "";
  var i;
  for (i = 0; i < x.length; i++) {
    txt = txt + "The index of Row "+(i+1)+" is: "+x[i].sectionRowIndex+"<br>";
  }
  document.getElementById("demo").innerHTML = txt;
}
</script>

</body>
</html>



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