avoid_multiple_declarations_per_line

Don't declare multiple variables on a single line.

This rule is available as of Dart 2.13.0.

This rule has a quick fix available.

DON'T declare multiple variables on a single line.

BAD:

String? foo, bar, baz;

GOOD:

String? foo;
String? bar;
String? baz;

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

linter:
  rules:
    - avoid_multiple_declarations_per_line