Update 3.js

Author: codebyshay

Sprint-1/2-mandatory-errors/3.js

@@ -17,4 +17,4 @@ const last4Digits = cardNumber.toString().slice(-4);
 console.log(last4Digits);
 
 // After running the code, I got the output "4213", which is the last 4 digits of the card number.
-
+// This is what i expected.