Baseline 2023
Newly available
The ariaAtomic property of the Element interface reflects the value of the aria-atomic attribute, which indicates whether assistive technologies will present all, or only parts of, the changed region based on the change notifications defined by the aria-relevant attribute.
A string with one of the following values:
"false"
Assistive technologies will present only the changed node or nodes.
"true"
Assistive technologies will present the entire changed region as a whole, including the author-defined label if one exists.
In this example the aria-atomic attribute on the element with an ID of "clock" is set to "true". Using ariaAtomic we update the value to "false".
<div id="clock" role="timer" aria-live="polite" aria-atomic="true"></div>
let el = document.getElementById("clock");
console.log(el.ariaAtomic); // true
el.ariaAtomic = "false";
console.log(el.ariaAtomic); // false
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