JSFiddle - React, Tailwind, and code Playground

HTML

<select id="test">
<option value="x">A</option>
<option value="xx">B</option>
<option value="xxx">C</option>
</select>
<input type="button" id="my_button" value="test me"/>

JavaScript

$(function(){
    $('#my_button').click(function(){
        alert($('#test option:selected').text());
    });
    
});