JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li>
    </li>
</ul>

<p>Test</p>

<textarea>Sample</textarea>

JavaScript

var elements = document.getElementsByTagName("*");

for (var i = 0; i < elements.length; i++) {
    if( elements[i].textContent.trim() === '' )
        elements[i].parentNode.removeChild(elements[i]);
}