Added type annotation.

square · Nov 20, 2011 · c936dc1 · c936dc1
1 parent 16d2f0b
commit c936dc1
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/luhn.dart b/luhn.dart
@@ -20,7 +20,7 @@ class Luhn {
     return total % 10 == 0;
   }
 
-  String mask(s) {
+  String mask(String s) {
     var masked = null;
     var i = 0;
     var digitCount = 0;