JSFiddle - React, Tailwind, and code Playground

HTML

<select name="select" multiple id="select">
 <option value="aa">aa</option>
 <option value="bb">bb</option>
 </select>
 <BR><BR>
 <input type="button" value="Print All" id="print">

JavaScript

$('#select').click(function()
{

var val = $("#select").val();
alert(val);
              
});