JSFiddle - React, Tailwind, and code Playground

HTML

<div>
        <p>
             <em>28.11.2014</em>
             <img></img>
                Testtext
             <span>
                <i>Testtext</i>
                Testtext
             </span>
        </p>
  </div>

JavaScript

$('div').find("*").contents().filter(function() {
    return this.nodeType == 3;
}).remove();