JSFiddle - React, Tailwind, and code Playground

HTML

<form>
    <input type="radio" name="seattle" value="Mariners" />Mariners<br />
    <input type="radio" name="seattle" value="Seahawks" />Seahawks    
</form>

JavaScript

if($('input:radio:checked').length > 0){
    alert("Button clicked!");
 }