JSFiddle - React, Tailwind, and code Playground
HTML
<select id="numb">
<option value="1">1</option>
<option value="2">2</option>
</select>
<script type="text/javascript">
function testMessage(){
alert('Hello');
}
function bronze(){
alert('Bronze');
}
</script>
JavaScript
$('#numb').on('change',testMessage);
$('#numb').on('change',bronze);