prefer_null_aware_method_calls

Prefer null-aware method calls.

Instead of checking nullability of a function/method f before calling it, you can use f?.call().

BAD:

if (f != null) f!();

GOOD:

f?.call();

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

linter:
  rules:
    - prefer_null_aware_method_calls

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

linter:
  rules:
    prefer_null_aware_method_calls: true