JSFiddle - React, Tailwind, and code Playground
HTML
<label><input type="radio" name="managerelradio" value="Yes" id="Add" checked >Add</label>
<label><input type="radio" name="managerelradio" value="No" id="Remove">Remove</label>
<input type="button" id="t" value="test"/>
JavaScript
$('#t').click(function() {
var manageradiorel = $("input:radio[name ='managerelradio']:checked").val();
alert(manageradiorel);
});