JSFiddle - React, Tailwind, and code Playground

HTML

<div class="mainElement">
  <div>
    <p class="thisClass">
      test
    </p>
  </div>
  <div>
    <div>
      <div class="andThisClass">
        test
      </div>
    </div>
  </div>

JavaScript

var cache = $('.mainElement');
cache.toggle(!(cache.has('.thisClass').length && cache.has('.andThisClass').length));