This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The disabled property of the HTMLTextAreaElement interface indicates whether this multi-line text control is disabled and cannot be interacted with. It reflects the <textarea> element's disabled attribute. When false, this textarea may still be disabled if its containing element, such as a <fieldset>, is disabled.
A boolean.
const textareaElement = document.getElementById("comment");
if (commentsDisabled) {
textareaElement.disabled = true;
}
| Specification |
|---|
| HTML> # dom-fe-disabled> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
disabled |
1 | 12 | 1 | ≤12.1 | 1 | 18 | 4 | ≤12.1 | 1 | 1.0 | 4.4 | 1 |
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https://developer.mozilla.org/en-US/docs/Web/API/HTMLTextAreaElement/disabled