20) Dart Functions Part 3: Nullable Return Types & Optional Parameters (Sinhala)
Автор: Teacher's Guide- (Mobile App Development)
Загружено: 2025-12-29
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Description: Deepen your Dart knowledge! In Part 3 of our Function series, we explore how Dart handles Null Safety within functions. We look at the difference between void and returning a null value.
Highlights:
The default behavior of functions without return types [01:12]
Handling Exceptions like "Null is not a subtype" [01:34]
How to make function parameters optional [03:32]
Returning nullable strings and variables [06:43]
If you're confused about how Dart builds software like "Lego blocks," this video is for you! [07:12]
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