ElementInternals: ariaAtomic 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.
TheariaAtomic property of theElementInternals interface reflects the value of thearia-atomic attribute, which indicates whether assistive technologies will present all, or only parts of, the changed region based on the change notifications defined by thearia-relevant attribute.
Note:Setting aria attributes onElementInternals allows default semantics to be defined on a custom element. These may be overwritten by author-defined attributes, but ensure that default semantics are retained should the author delete those attributes, or fail to add them at all. For more information see theAccessibility Object Model explainer.
Value
A string with one of the following values:
Examples
In this example the value ofariaAtomic is set to "true" in the constructor for a custom element.
class MyCustomElement extends HTMLElement { constructor() { super(); this.internals_ = this.attachInternals(); this.internals_.ariaAtomic = "true"; }}Specifications
| Specification |
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| Accessible Rich Internet Applications (WAI-ARIA) # dom-ariamixin-ariaatomic |