JSFiddle - React, Tailwind, and code Playground

HTML

<textarea>
this is some content
</textarea>
<button>Click</button>

JavaScript

$('button').click(function () { 
    alert('html:\r\n' + $('textarea').html());
            alert('val:\r\n' + $('textarea').val());
    alert('textContent\r\n' + document.getElementsByTagname('textarea')[0].textContent);
});