Contents

prefer_null_aware_method_calls

Contents

Prefer null-aware method calls.

This rule is available as of Dart 2.14.

Details

#

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

BAD:

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

GOOD:

dart
f?.call();

Usage

#

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

analysis_options.yaml
yaml
linter:
  rules:
    - prefer_null_aware_method_calls