Flutter close null safety

Checking Nulls and Null-Aware Operators in Dart

Null-aware operators in dart allow you to make computations based on whether or not a value is null . It’s shorthand for longer expressions. A null-aware operator is a nice tool for making nullable types usable in Dart instead of throwing an error.28 Oca 2022

Anytime you can write less code without sacrificing readability, you probably should. The three null-aware operators that Dart provides are ?. , ?? , and ??= .