unnecessary_null_aware_assignments
Unnecessary assignment of 'null'.
Description
#The analyzer produces this diagnostic when the right-hand side of a
null-aware assignment is the null
literal.
Example
#The following code produces this diagnostic because the null aware
operator is being used to assign null
to s
when s
is already null
:
dart
void f(String? s) {
s ??= null;
}
Common fixes
#If a non-null value should be assigned to the left-hand operand, then change the right-hand side:
dart
void f(String? s) {
s ??= '';
}
If there is no non-null value to assign to the left-hand operand, then remove the assignment:
dart
void f(String? s) {
}