Element: ariaSetSize 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.
TheariaSetSize property of theElement interface reflects the value of thearia-setsize attribute, which defines the number of items in the current set of listitems or treeitems.
Value
A string containing an integer.
Examples
In this example thearia-setsize attribute on the element with an ID oftab-id is set to "3", to inform a device that there are currently 3 tabs in the group. UsingariaSetSize we update the value to "4".
html
<button role="tab" aria-selected="true" aria-setsize="3" aria-controls="tabpanel-id" > Tab label</button>js
let el = document.getElementById("tab-id");console.log(el.ariaSetSize); // 3el.ariaSetSize = "4";console.log(el.ariaSetSize); // 4Specifications
| Specification |
|---|
| Accessible Rich Internet Applications (WAI-ARIA) # dom-ariamixin-ariasetsize |