anchor.diff:              $("a#aAddResponse").on('click', function () {
   
                   var responseName = prompt("Enter response name?");
  -                if (responseName != null) {
  +                if (responseName !== null) {
   
                       var response = editor.getDoc().getValue();
   
  
positive.code: 
          $(document).ready(function () {
  
              var preSelRespId = '<%=request.getParameter("response_id")!=null ? request.getParameter("response_id") : Routes.COLUMN_DEFAULT_RESPONSE%>';
  
              function formatJSON() {
                  editor.getDoc().setValue(JSON.stringify(JSON.parse(editor.getDoc().getValue()), undefined, 4));
  
negative.code:                                     .remove()
                                      .end()
                                      .append('<option value="default_response">Default response</option>')
                                      .trigger('change');
  
                                  $.each(data.data.responses, function (i, item) {
  