LowFile-scopeDart Plug & play

PREFER using _, __, etc. for unused callback parameters

Check for functions with unused parameters and ensure they are titled with _ or __ to indicate they are intentionally unused.

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Why this matters

When defining a function with unused parameters, use _ or __ to indicate they are intentionally unused. This avoids confusion and prevents unnecessary warnings.

Bad vs. good

Side-by-side examples engineers can pattern-match during review.

Avoid

// (no example provided)

Prefer

futureOfVoid.then((_) {
  print('Operation complete.');
});

Related rules

From the same buckets as this rule.

Critical
Avoid Duplicating String Literals
Store repeated string literals in constants or variables to improve maintainability and reduce redundancy.
duplication-complexitymaintainability
Critical
Avoid Empty Methods
Detect methods that have an empty body. If a method is empty, ensure that a comment is present explaining why it remains unimplemented.
maintainabilityreadability-refactor
Critical
Avoid modifying built-in prototypes
Detect modifications to built-in prototypes. Modifying built-in objects can lead to compatibility issues and unexpected behavior. Recommend creating helper functions instead.
maintainabilitysecurity-hardening

Why this matters

Bad vs. good

Related rules

Avoid Duplicating String Literals

Avoid Empty Methods

Avoid modifying built-in prototypes

Why this matters

Bad vs. good

Related rules

Avoid Duplicating String Literals

Avoid Empty Methods

Avoid modifying built-in prototypes