JSFiddle - React, Tailwind, and code Playground

HTML

<select id="mySelectBox">
    <option>One</option>
    <option>Two</option>
    <option>Three</option>
    <option>Four</option>
</select>

JavaScript

$(function() {
    $('#mySelectBox').change(function() {
        //do things here
        alert("Event!");
    });
});