JSFiddle - React, Tailwind, and code Playground
HTML
<form>
<select id="mySelect" size="4" multiple>
<option>Apple</option>
<option>Pear</option>
<option>Banana</option>
<option>Orange</option>
</select>
</form>
<button id="print-value">
Print
</button>
JavaScript
$("#mySelect").change(function() {
alert($("#mySelect").val());
});
$("#print-value").click(function() {
alert("value:" + $("#mySelect option:selected").text());
});