diff --git a/JavaScript/chapter01/p01_is_unique/avc278.js b/JavaScript/chapter01/p01_is_unique/avc278.js
index a49d9ceb..1db0ca33 100644
--- a/JavaScript/chapter01/p01_is_unique/avc278.js
+++ b/JavaScript/chapter01/p01_is_unique/avc278.js
@@ -1,3 +1,4 @@
+
 // Is Unique: Implement an algorithm to determine if a string has all unique characters.
 // What if you cannot used additional data structures?