Intermediate
Flutter
Q67 / 100
What is Dart's null safety feature?
Correct! Well done.
Incorrect.
The correct answer is B) A compile-time type system feature distinguishing nullable (String?) from non-nullable (String) types, preventing null errors at compile time
B
Correct Answer
A compile-time type system feature distinguishing nullable (String?) from non-nullable (String) types, preventing null errors at compile time
Explanation
Dart's sound null safety means types are non-nullable by default. You must explicitly declare nullable types with ? (e.g., String?). This eliminates null reference exceptions at compile time and improves app reliability.
Progress
67/100