diff --git a/express/lib/random_number.js b/express/lib/random_number.js
new file mode 100644
index 0000000..99c63bc
--- /dev/null
+++ b/express/lib/random_number.js
@@ -0,0 +1,4 @@
+
+function someFunction() {
+    return 4;
+}
\ No newline at end of file