unnecessary_null_aware_assignments

Avoid null in null-aware assignment.

AVOID null in null-aware assignment.

Using null on the right-hand side of a null-aware assignment effectively makes the assignment redundant.

BAD:

var x;
x ??= null;

GOOD:

var x;
x ??= 1;

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

linter:
  rules:
    - unnecessary_null_aware_assignments

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

linter:
  rules:
    unnecessary_null_aware_assignments: true

Unless stated otherwise, the documentation on this site reflects Dart 3.6.0. Page last updated on 2025-01-27. View source or report an issue.