JSFiddle - React, Tailwind, and code Playground

HTML

<form>
    <input type="hidden" name="foo" value="no" />
    <input type="checkbox" name="foo" value="yes" />
    
    <input type="hidden" name="foo2" value="no" />
    <input type="checkbox" name="foo2" value="yes" checked />
</form>

JavaScript

console.log($('form').serializeArray());