Get Table Row Index onclick in JavaScript

In this tutorial we will learn how to Get Table Row Index onclick in JavaScript. HTML DOM TableRow rowIndex Property is used for this purpose.

HTML Code

HTML Code is given below, in this code we have a table tag with four rows and paragraph tag. onclick event is used in all rows of table to execute a function which will return the Row Index of each row.

<table>
  <tr>
    <th>Language</th>
    <th>Instructor</th>
  </tr>
  <tr onclick="getIndex(this)">
    <td>HTML</td>
    <td>John</td>
  </tr>
  <tr onclick="getIndex(this)">
    <td>CSS</td>
    <td>David</td>
  </tr>
  <tr onclick="getIndex(this)">
    <td>JavaScript</td>
    <td>Tom</td>
  </tr>
</table>
    
<p>Row Index: <span id="index"></span></p> 

JavaScript Code

Take a look at the JavaScript code, the HTML DOM rowIndex property is used in this code.

<script>
function getIndex(x)
{
  document.getElementById('index').textContent = x.rowIndex;
}
</script>

getElementById() Method

HTML DOM getElementById() Method is used to select or target HTML element by it's id.

In this example it is used to display the rowIndex result.

rowIndex property

The rowIndex property returns the position of a row in the HTML table.

Demo

Video Tutorial

Watch video tutorial on Get Table Row Index onclick in JavaScript.

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