Index: src/site/docs/dart-up-and-running/ch03.markdown |
diff --git a/src/site/docs/dart-up-and-running/ch03.markdown b/src/site/docs/dart-up-and-running/ch03.markdown |
index 74ec8a407aba529f0be6dacb940b978bffd6f3ea..562449238590b53bb0b96c0466ec140ba672f20b 100644 |
--- a/src/site/docs/dart-up-and-running/ch03.markdown |
+++ b/src/site/docs/dart-up-and-running/ch03.markdown |
@@ -967,7 +967,7 @@ implementing the Exception interface: |
class FooException implements Exception { |
final String msg; |
const FooException([this.msg]); |
- String toString() => msg == null ? 'FooException' : msg; |
+ String toString() => msg ?? 'FooException'; |
} |
{% endprettify %} |