Element: ariaColIndex property
Baseline 2023Newly available
Since October 2023, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.
TheariaColIndex property of theElement interface reflects the value of thearia-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 thearia-colindex attribute on the element with an ID ofrole-heading is set to "1". UsingariaColIndex we update the value to "2".
html
<table role="table" aria-label="Semantic Elements" aria-describedby="semantic_elements_table_desc" aria-rowcount="100"> <caption> Semantic Elements to use instead of ARIA's roles </caption> <thead role="rowgroup"> <tr role="row"> <th role="columnheader" aria-sort="none" aria-rowindex="1" aria-colindex="1"> ARIA Role </th> <th role="columnheader" 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); // 1el.ariaColIndex = "2";console.log(el.ariaColIndex); // 2Specifications
| Specification |
|---|
| Accessible Rich Internet Applications (WAI-ARIA) # dom-ariamixin-ariacolindex |