methods

.idea/misc.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="JavaScriptSettings">
+    <option name="languageLevel" value="ES6" />
+  </component>
+</project>
\ No newline at end of file

.idea/vcs.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file

dao/persondao.js

@@ -21,4 +21,20 @@ module.exports = class PersonDao extends Dao {
       callback
     );
   }
+
+  updateOne(id, json, callback) {
+    var val = [json.navn, json.adresse, json.alder, id];
+    super.query(
+        "update person set navn = ?, adresse = ?, alder = ? where id = ?",
+        val,
+        callback
+    );
+  }
+
+  deleteOne(id, callback) {
+    super.query(
+        "delete from person where id = ?",
+        callback
+    );
+  }
 };