remove final keyword (#3090)

dart-lang · Mar 22, 2021 · ca885fc · ca885fc
1 parent 8d64122
commit ca885fc
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/null-safety/understanding-null-safety/index.md b/src/null-safety/understanding-null-safety/index.md
@@ -1291,7 +1291,7 @@ T` cast, *not* the `!` operator:
 ```dart
 // Using null safety:
 class Box<T> {
-  final T? object;
+  T? object;
   Box.empty();
   Box.full(this.object);