JSFiddle - React, Tailwind, and code Playground
HTML
<div>a</div>
JavaScript
var $e = $('<span>e</span>'),
$x = $('<span>x</span>');
$('div').append(' ', $e, ' ', $x);
<div>a</div>
var $e = $('<span>e</span>'),
$x = $('<span>x</span>');
$('div').append(' ', $e, ' ', $x);