JSFiddle - React, Tailwind, and code Playground
HTML
<div class="lets-test-a"></div>
JavaScript
var $letsTestA = $( '.lets-test-a' ),
$letsTestB = $( '.lets-test-b' );
alert($letsTestA);
alert($letsTestB);
<div class="lets-test-a"></div>
var $letsTestA = $( '.lets-test-a' ),
$letsTestB = $( '.lets-test-b' );
alert($letsTestA);
alert($letsTestB);