JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://code.jquery.com/jquery-2.2.4.min.js"></script>
<label class="selected"><input name="acf_1" value="test" checked="checked" type="radio">4/12</label>

JavaScript

jQuery(document).ready(function($){
    var columns = $("input").val(); 
    alert(columns);
    if(columns == "test"){
    		alert('marco')
        $(this).parent().addClass("test");
    }
});