HTMLTextAreaElement: maxLength property - Web APIs | MDN
Value
A number representing the element's maxlength if present, or -1.
Example
Given the following HTML:
html
<p>
<label for="comment">Comment</label>
<textarea id="comment" minlength="10" maxlength="200"></textarea>
</p>
You can use the maxLength property to retrieve or set the <textarea>'s maxlength attribute value:
js
const textareaElement = document.querySelector("#comment");
console.log(`Element's maxLength: ${textareaElement.maxLength}`); // "Element's maxlength: 200"
textareaElement.maxLength = 220; // updates the element's maxlength attribute value
Specifications
| Specification |
|---|
| HTML # dom-textarea-maxlength |