Element.ariaColIndex

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.

Syntax

var ariaColIndex = element.ariaColIndex;
element.ariaColIndex = ariaColIndex

Value

A DOMString 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".

<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>
let el = document.getElementById('role-heading');
console.log(el.ariaColIndex); // 1
el.ariaColIndex = "2"
console.log(el.ariaColIndex); // 2

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
ariaColIndex
81
81
No
No
68
12.1
81
81
No
58
12.2
13.0

See also

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/Element/ariaColIndex