date fix for null dates

components/newappeal/buildcheckrow.js

@@ -34,6 +34,21 @@ let BuildCheckRow = (props) => {
         doc
     );
 
+    function formatDate(dateObj) {
+        var m = new Date(dateObj);
+        var dateString;
+        dateObj != null
+            ? (dateString =
+                  ("0" + m.getDate()).slice(-2) +
+                  "/" +
+                  ("0" + (m.getMonth() + 1)).slice(-2) +
+                  "/" +
+                  m.getFullYear())
+            : (dateString = "");
+
+        return dateString;
+    }
+
     return (
         <>
             {Object.keys(rowXML).map((key, index) => {
@@ -51,11 +66,16 @@ let BuildCheckRow = (props) => {
                             {rows[0].value}
                         </dt>
                         <dd className="govuk-summary-list__value">
-                            {
-                                props.props.form["appealForm"].values[
-                                    datafieldname[0].value
-                                ]
-                            }
+                            {fieldtype[0].value ==
+                            "{5B773807-9FB2-42db-97C3-7A91EFF8ADFF}"
+                                ? formatDate(
+                                      props.props.form["appealForm"].values[
+                                          datafieldname[0].value
+                                      ]
+                                  )
+                                : props.props.form["appealForm"].values[
+                                      datafieldname[0].value
+                                  ]}
                         </dd>
                         <dd className="govuk-summary-list__actions">
                             <a