JSFiddle - React, Tailwind, and code Playground

HTML

<div>
        <img class="size" src="">
        <input name="rdo" id="rdo" type="radio" value="1">
            <div>
                <label>radiobutton</label>
                <div>
                    <a href="javascript:void(0)">link</a>
                    <input name="abc" id="abc" type="hidden" value="1">
                </div>
            </div>
</div>

JavaScript

$(function() {

var find = $('#abc').parent().parent().parent().find("input[type='radio']").length;
var closest = $('#abc').closest("input[type='radio']").length;
//alert(find);
//alert(closest);    
    
});