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avoid-duplicate-initializers

added in: 1.13.0
warning
Pro+
preset: recommended

Warns when a final variable has the same initializer as another variable in scope.

Variables with duplicate initializers are either the result of a typo or are redundant and can be simply removed.

Example​

❌ Bad:

void fn(SomeClass param) {
  final myValue = param.value.isNotEmpty;

  // LINT: This variable has the same initializer as 'myValue'. Try changing the initializer or reusing the existing variable.
  final anotherValue = param.value.isNotEmpty;
}

✅ Good:

void fn(SomeClass param) {
  final myValue = param.value.isNotEmpty;
  final anotherValue = param.anotherValue; // Correct, different initializer
}

Additional Resources​