JSFiddle - React, Tailwind, and code Playground

HTML

<input type="radio" id="p1" name="p1" value="si">si <br />
<input type="radio" id="p1" name="p1" value="no">no <br />

JavaScript

$('input[type=radio]').on('change', function() {
   alert($('input[name=p1]:checked').val()); 
});