--- ./data/templates/files/file.js.orig	2019-12-30 08:35:31.447418000 +0200
+++ ./data/templates/files/file.js	2019-12-30 08:49:39.349962000 +0200
@@ -0,0 +1,8 @@
+{fileheader}
+
+class Some {
+    constructor() {
+    }
+};
+
+var some = new Some;