HTML <td> data-* Attribute

The data-* attribute on a <td> tag attaches additional data to the table data cell. To create a custom attribute, replace the * with a lowercase string, such as data-id, data-status, or data-location.

Example

#

A custom data-id attribute on several <td> tags.
The attribute values are not visible, but they are readable by JavaScript.

Full name
Denice Hobermann
Paulo Cornell
Jane Hollander
<style>
  table.tb { width:300px; border-collapse: collapse; }
  .tb th, .tb td { border: solid 1px #777; padding: 5px; }
  .tb th {background-color: lightblue; text-align: center; }
</style>

<table class="tb">
  <tr>
    <th>Full name</th>
  </tr>
  <tr>
    <td data-id="105">Denice Hobermann</td>
  </tr>
  <tr>
    <td data-id="250">Paulo Cornell</td>
  </tr>
  <tr>
    <td data-id="252">Jane Hollander</td>
  </tr>
</table>

Using data-*

The data-* attribute adds custom information to a <td> element.

The * part is replaced with a lowercase string, such as data-id, data-cost, or data-location.

An <td> element can have any number of data-* attributes, each with their own name.

Using data-* attributes reduces the need for requests to the server.

Note: The data-* attribute is not visible and does not change the appearance of the td.


Syntax

<td data-*="value">

Note: The * can be any string, such as data-iddata-costdata-supplier,  etc.


Values

#

Value Description
value A string value. Can be numeric, alphanumeric, JSON, etc.

More Examples

A custom data-id attribute on each <td> element.
Clicking a data cell will display the customer id value.

Customer
Denice Hobermann
Paulo Cornell
Jane Hollander
<style>
  table.tb { width:300px; border-collapse: collapse; }
  .tb th, .tb td { border: solid 1px #777; padding: 5px; }
  .tb th {background-color: lightblue; text-align: center; }
</style>

<table class="tb">
  <tr>
    <th>Customer</th>
  </tr>
  <tr>
    <td data-id="105" onclick="show(this);">Denice Hobermann</td>
  </tr>
  <tr>
    <td data-id="250" onclick="show(this);">Paulo Cornell</td>
  </tr>
  <tr>
    <td data-id="252" onclick="show(this);">Jane Hollander</td>
  </tr>
</table>

<script>
  let show = element => {
    alert("Customer Id = " + element.getAttribute('data-id'));
  }
</script>

Code explanation

The <td> tag has a custom data-id attribute.

The data-id attribute is used to specify the id of the customer.

Clicks are handled by the onclick event.

Onclick invokes a JavaScript function that extracts and displays the <td> id.

Note: Notice how the id displays immediately without server call.


Browser support

Here is when data-* support started for each browser:

Chrome
1.0 Sep 2008
Firefox
1.0 Sep 2002
IE/Edge
1.0 Aug 1995
Opera
1.0 Jan 2006
Safari
1.0 Jan 2003

You may also like

 Back to <td>
Guides