JSFiddle - React, Tailwind, and code Playground

HTML

<input type="radio" name="radio_workitem" value="x">

<s:form id="id_form_workitem_view">
   <textarea name="workItemVO.note"  class="form-control" rows="4"> </textarea>   
</s:form>

JavaScript

$("input[name=radio_workitem]").on("change",function(){
   $("textarea[name='workItemVO.note']",'#id_form_workitem_view').val("dummyNote");
});