JSFiddle - React, Tailwind, and code Playground
by rwaldron
HTML
<select id="jquery_rules">
<option value="1" selected="selected">One</option>
<option value="2">Two</option>
</select>
JavaScript
var $select = $('#jquery_rules').val('2');
console.log("present: ", $select.val());
$("<option/>", {
value: 3,
text: 3
}).appendTo( $select );
$select.val('3');
console.log("not present: ", $select.val());