Element: ariaPosInSet property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since October 2023.

The ariaPosInSet property of the Element interface reflects the value of the aria-posinset attribute, which defines an element's number or position in the current set of listitems or treeitems.

Value

A string containing an integer.

Examples

In this example the aria-posinset attribute on the element with an ID of article2 is set to "2". Using ariaPosInSet we update the value to "3".

html
<article id="article1" aria-posinset="1">…</article>
<article id="article2" aria-posinset="2">…</article>
js
let el = document.getElementById("article2");
console.log(el.ariaPosInSet); // "2"
el.ariaPosInSet = "3";
console.log(el.ariaPosInSet); // "3"

Specifications

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

Browser compatibility