JSFiddle - React, Tailwind, and code Playground
HTML
<select multiple="multiple">
<option>1</option>
<option>2</option>
<option>3</option>
<option>4</option>
<option>5</option>
<option>6</option>
<option>7</option>
<option>8</option>
<option>9</option>
<option>10</option>
</select>
JavaScript
var $select = $('select');
var options = $select.find('option');
options = [].slice.call(options).reverse();
$select.empty();
$.each(options, function (i, el) {
$select.append($(el));
});