Element: ariaColSpan property

Baseline 2023
Newly available

Since October 2023, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.

The ariaColSpan property of the Element interface reflects the value of the aria-colspan attribute, which defines the number of columns spanned by a cell or gridcell within a table, grid, or treegrid.

Value

A string which contains an integer.

Examples

In this example the aria-colspan attribute on the element with an ID of spanning-heading is set to "2". Using ariaColSpan we update the value to "3".

html
<table>
  <tr>
    <th>Heading 1</th>
    <th>Heading 2</th>
    <th>Heading 3</td>
  </tr>
  <tr>
    <td colspan="2" aria-colspan="2" id="spanning-column">Spanning</td>
    <td>One</td>
  </tr>
</table>
js
let el = document.getElementById("spanning-column");
console.log(el.ariaColSpan);
el.ariaColSpan = "3";
console.log(el.ariaColSpan);

Specifications

Specification
Accessible Rich Internet Applications (WAI-ARIA)
# dom-ariamixin-ariacolspan

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
ariaColSpan

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support

See also