JSFiddle - React, Tailwind, and code Playground

HTML

<select id="test">
    <option>1</option>
    <option>2</option>
    <option>3</option>
</select>
<select id="test">
    <option>1</option>
    <option>2</option>
    <option selected>3</option>
</select>

JavaScript

$(function() {
    $('select').each(function(idx, elem) {
        if ($(elem).is('select')) {
            alert($('option:selected', elem).text());
        }
    });
    
});