diff --git a/index.js b/index.js
index 24cd47e..6b10f38 100644
--- a/index.js
+++ b/index.js
@@ -1,3 +1,6 @@
 const greet = (name) => {
     return `Hey ${name}!`;
-}
\ No newline at end of file
+}
+
+// if number of argumnt is one, () can be eliminated with impilict return
+const greet = name => `Hey ${name}!`;