unnecessary_const

Learn about the unnecessary_const linter rule.

Stable

Recommended

Fix available

Avoid const keyword.

AVOID repeating const keyword in a const context.

BAD:

dart

class A { const A(); }
m(){
  const a = const A();
  final b = const [const A()];
}

GOOD:

dart

class A { const A(); }
m(){
  const a = A();
  final b = const [A()];
}

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

analysis_options.yaml

yaml

linter:
  rules:
    - unnecessary_const

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

analysis_options.yaml

yaml

linter:
  rules:
    unnecessary_const: true

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