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Element: ariaMultiLine property

The ariaMultiLine property of the Element interface reflects the value of the aria-multiline attribute, which indicates whether a text box accepts multiple lines of input or only a single line.

Note: Where possible use an HTML <input> element with type="text" or a <textarea> as these have built in semantics and do not require ARIA attributes.

Value

A string with one of the following values:

"true"

This is a multi-line text box.

"false"

This is a single-line text box.

Examples

In this example the aria-multiline attribute on the element with an ID of txtBoxInput is set to "true" indicating that this box allows for multiple lines of input. Using ariaMultiLine we update the value to "false".

html

<div id="txtboxMultilineLabel">Enter the tags for the article</div>
<div
  role="textbox"
  id="txtBoxInput"
  contenteditable="true"
  aria-multiline="true"
  aria-labelledby="txtboxMultilineLabel"
  aria-required="true"></div>

js

let el = document.getElementById("txtBoxInput");
console.log(el.ariaMultiLine); // "true"
el.ariaMultiLine = "false";
console.log(el.ariaMultiLine); // "false"

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
ariaMultiLine 81 81 119 No 68 12.1 81 81 119 58 12.2 13.0

See also

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https://developer.mozilla.org/en-US/docs/Web/API/Element/ariaMultiLine