JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
<p id="switch-on-submit">hello</p>

<select multiple="no">
  <option selected="selected">one</option>
  <option>two</option>
  <option>three</option>
  <option>four</option>
</select>
<button id="submit">
add
</button>

JavaScript

$('#submit').click(function(){
$("p#switch-on-submit").text($("select option:selected").text());

});