Element: ariaColIndex 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 ariaColIndex
property of the Element
interface reflects the value of the aria-colindex
attribute, which defines an element's column index or position with respect to the total number of columns within a table, grid, or treegrid.
Value
A string which contains an integer.
Examples
In this example the aria-colindex
attribute on the element with an ID of role-heading
is set to "1". Using ariaColIndex
we update the value to "2".
html
<table
id="semantic-table"
role="table"
aria-label="Semantic Elements"
aria-describedby="semantic_elements_table_desc"
aria-rowcount="100">
<caption id="semantic_elements_table_desc">
Semantic Elements to use instead of ARIA's roles
</caption>
<thead role="rowgroup">
<tr role="row">
<th
role="columnheader"
id="role-heading"
aria-sort="none"
aria-rowindex="1"
aria-colindex="1">
ARIA Role
</th>
<th
role="columnheader"
id="element-heading"
aria-sort="none"
aria-rowindex="1">
Semantic Element
</th>
</tr>
</thead>
<tbody role="rowgroup">
<tr role="row">
<td role="cell" aria-rowindex="11">header</td>
<td role="cell" aria-rowindex="11">h1</td>
</tr>
<tr role="row">
<td role="cell" aria-rowindex="16">header</td>
<td role="cell" aria-rowindex="16">h6</td>
</tr>
<tr role="row">
<td role="cell" aria-rowindex="18">rowgroup</td>
<td role="cell" aria-rowindex="18">thead</td>
</tr>
<tr role="row">
<td role="cell" aria-rowindex="24">term</td>
<td role="cell" aria-rowindex="24">dt</td>
</tr>
</tbody>
</table>
js
let el = document.getElementById("role-heading");
console.log(el.ariaColIndex); // 1
el.ariaColIndex = "2";
console.log(el.ariaColIndex); // 2
Specifications
Specification |
---|
Accessible Rich Internet Applications (WAI-ARIA) # dom-ariamixin-ariacolindex |
Browser compatibility
BCD tables only load in the browser