JSFiddle - React, Tailwind, and code Playground

HTML

<form action="" method="post">
    
    <p>Shirt 1 : <input type="radio" name="myradio" id="myradio" value="0"/></p>
    <p>Shirt 2 : <input type="radio" name="myradio" id="myradio"  value="1"/></p>
    
    
    <input type="button" name="submit" id="submit" value="create" />
    
</form>

JavaScript

$(function(){
    $(':button').click(function() {
        alert($('form').serialize());
        return false;
    });
});