files/en-us/web/api/element/ariaorientation/index.md
{{APIRef("DOM")}}
The ariaOrientation property of the {{domxref("Element")}} interface reflects the value of the aria-orientation attribute, which indicates whether the element's orientation is horizontal, vertical, or unknown/ambiguous.
A string with one of the following values:
"horizontal"
"vertical"
"undefined"
In this example the aria-orientation attribute on the element with an ID of handle_zoomSlider is set to "vertical". Using ariaOrientation we update the value to "horizontal".
<div
id="handle_zoomSlider"
role="slider"
aria-orientation="vertical"
aria-valuemin="0"
aria-valuemax="17"
aria-valuenow="14"
tabindex="0">
<span>11</span>
</div>
let el = document.getElementById("handle_zoomSlider");
console.log(el.ariaOrientation); // "vertical"
el.ariaOrientation = "horizontal";
console.log(el.ariaOrientation); // "horizontal"
{{Specifications}}
{{Compat}}