JSFiddle - React, Tailwind, and code Playground

HTML

<div id="recover">
    <input type="radio" name="s" checked/>
    <input type="radio" name="s" />
    <input type="radio" name="s" />
</div>
<input type="button" value=" Test " onclick="doCheck();" />

JavaScript

$('#recover input[type="radio"]:checked').each(function() {
  alert("checked");
});