JSFiddle - React, Tailwind, and code Playground

HTML

<textarea class="ipText" id="txtBox" cols="50" rows="5"></textarea>
</br>
<button type="submit" onclick="saveComment">Save</button>
<input type="button" id="enableTxt" value="Click to Toggle" onclick="toggleText()">

JavaScript

function toggleText() {
    var value = document.getElementById("txtBox").disabled;
    document.getElementById("txtBox").disabled = !value;
};