Element: ariaRowSpan property
The ariaRowSpan property of the Element interface reflects the value of the aria-rowspan attribute, which defines the number of rows 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-rowspan attribute on the element with an ID of spanning-heading is set to "3". Using ariaRowSpan we update the value to "2".
html
<table>
<tr>
<th id="spanning-heading" rowspan="3" aria-rowspan="3">Spanning heading</th>
<th>Heading</th>
</tr>
<tr>
<td>One</td>
</tr>
<tr>
<td>Two</td>
</tr>
</table>
js
let el = document.getElementById("spanning-heading");
console.log(el.ariaRowSpan);
el.ariaRowSpan = "2";
console.log(el.ariaRowSpan);