JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<div id="result">

</div>
<select id="my_select">
  <option value="mazda">Mazda</option>
  <option value="Mersedes">Mersedes</option>
  <option value="Audi">Audi</option>
</select>

JavaScript

$( document ).ready( function() {
	var sel = $("#my_select :first").val();
  $( '#result' ).html( sel );
} );