avoid_multiple_declarations_per_line

Don't declare multiple variables on a single line.

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 

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

linter:  rules:  avoid_multiple_declarations_per_line: true