JSFiddle - React, Tailwind, and code Playground
HTML
<form id="myForm">
<input type="radio" name="radioName" value="1" /> 1 <br />
<input type="radio" name="radioName" value="2" /> 2 <br />
<input type="radio" name="radioName" value="3" /> 3 <br />
</form>
JavaScript
$('#myForm input').on('change', function() {
alert($('input[name=radioName]:checked', '#myForm').val());
});