Javascript DOM HTML TableHeader cellIndex Property get index for each cell in a table row

Introduction

Return the index position of each cell in a table row:

Click the button to return the position of each cell in the table row.

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<!DOCTYPE html>
<html>
<head>
<style>
table, th {
  border: 1px solid black;
}
</style>/*w  w  w  .  ja  v  a  2 s . co m*/
</head>
<body>

<table border="1">
  <tr>
    <th>Cell 1</th>
    <th>Cell 2</th>
    <th>Cell 3</th>
    <th>Cell 4</th>
  </tr>
</table>
<button onclick="myFunction()">Test</button>

<p id="demo"></p>

<script>
function myFunction() {
  var x = document.getElementsByTagName("th");
  var txt = "";
  var i;
  for (i = 0; i < x.length; i++) {
    txt = txt + "The index of Cell "+(i+1)+" is: "+x[i].cellIndex+"<br>";
  }

  document.getElementById("demo").innerHTML = txt;
}
</script>

</body>
</html>



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