JSFiddle - React, Tailwind, and code Playground

HTML

<p>1</p>
<p id='middle'>2</p>
<p>3</p>

JavaScript

allps = $('p');
middlep = $('#middle');
alert("is() does not mean identical: " 
      + middlep.is(allps) 
      + allps.is(middlep)
);