unnecessary_nullable_for_final_variable_declarations

Use a non-nullable type for a final variable initialized with a non-nullable value.

Use a non-nullable type for a final variable initialized with a non-nullable value.

BAD:

final int? i = 1;

GOOD:

final int i = 1;

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

linter:
  rules:
    - unnecessary_nullable_for_final_variable_declarations

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

linter:
  rules:
    unnecessary_nullable_for_final_variable_declarations: true

Unless stated otherwise, the documentation on this site reflects Dart 3.6.2. Page last updated on 2025-01-27. View source or report an issue.