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prefer_if_null_operators

Learn about the prefer_if_null_operators linter rule.

Stable
Recommended
Fix available

Prefer using ?? operators.

Details

#

PREFER using ?? operators instead of null checks and conditional expressions.

BAD:

dart
v = a == null ? b : a; 

GOOD:

dart
v = a ?? b; 

Enable

#

To enable the prefer_if_null_operators rule, add prefer_if_null_operators under linter > rules in your analysis_options.yaml file:

analysis_options.yaml
yaml
linter:  rules:  - prefer_if_null_operators 

If you're instead using the YAML map syntax to configure linter rules, add prefer_if_null_operators: true under linter > rules:

analysis_options.yaml
yaml
linter:  rules:  prefer_if_null_operators: true