diff --git a/clipboard/datatransfer-cleardata-keep-files.html b/clipboard/datatransfer-cleardata-keep-files.html
index ff6d93c..6fab9cf 100644
--- a/clipboard/datatransfer-cleardata-keep-files.html
+++ b/clipboard/datatransfer-cleardata-keep-files.html
@@ -26,10 +26,12 @@
         dataTransfer.items.add("hi", "text/plain");
         dataTransfer.items.add("new octet item", "application/octet-stream");
 
+        console.log('before: ' + dataTransfer.items.length);
+
         // 3. clear the data in the data transfer
         dataTransfer.clearData();
 
-        console.log(dataTransfer.items.length);
+        console.log('after: ' + dataTransfer.items.length);
     </script>
   </body>
 </html>
\ No newline at end of file