JSFiddle - React, Tailwind, and code Playground

HTML

<select id="testID" multiple="multiple">
   <option value="test Value1">test Value1</option>
   <option value="test Value2">test Value2</option>
   <option value="test Value3">test Value3</option>
   <option value="test Value4">test Value4</option>
   <option value="test Value5">test Value5</option>
  <option value="test Value6">test Value6</option>
</select>

<input type="button" value="Get dropdown selected Value" id ="select-values">
<div id="result"></div>

JavaScript

$("#select-values").click(function () {
     //$("select option:selected").text();
     $('#result').text($('#testID').val());
});