prefer_null_aware_operators
Prefer using null
-aware operators.
Details
#PREFER using null
-aware operators instead of null
checks in conditional
expressions.
BAD:
dart
v = a == null ? null : a.b;
GOOD:
dart
v = a?.b;
Enable
#To enable the prefer_null_aware_operators
rule,
add prefer_null_aware_operators
under linter > rules in your
analysis_options.yaml
file:
analysis_options.yaml
yaml
linter:
rules:
- prefer_null_aware_operators
If you're instead using the YAML map syntax to configure linter rules,
add prefer_null_aware_operators: true
under linter > rules:
analysis_options.yaml
yaml
linter:
rules:
prefer_null_aware_operators: true