HTMLTextAreaElement: willValidate property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨July 2015⁩.

The willValidate read-only property of the HTMLTextAreaElement interface indicates whether the <textarea> element is a candidate for constraint validation. It is false if any conditions bar it from constraint validation, such as when its disabled or readOnly property is true.