JSFiddle - React, Tailwind, and code Playground

HTML

<div>div 1 - with iframe
    <iframe></iframe>
</div>
<div>div 2  without iframe</div>
<div>div 3  with iframe
    <iframe></iframe>
</div>
<input type="button" id="remove" value="Remove" />

JavaScript

$('#remove').click(function () {
    $("div:not(:has(iframe))").remove();
});