use_null_aware_elements
If-elements testing for null can be replaced with null-aware elements.
Details
#Where possible, use null-aware elements in collection literals.
BAD:
dart
f(String? key) => {if (key != null) key: "value"};
GOOD:
dart
f(String? key) => {?key: "value"};
Enable
#To enable the use_null_aware_elements
rule,
add use_null_aware_elements
under linter > rules in your
analysis_options.yaml
file:
analysis_options.yaml
yaml
linter:
rules:
- use_null_aware_elements
If you're instead using the YAML map syntax to configure linter rules,
add use_null_aware_elements: true
under linter > rules:
analysis_options.yaml
yaml
linter:
rules:
use_null_aware_elements: true
除非另有说明,文档之所提及适用于 Dart 3.7.2 版本,本页面最后更新时间: 2025-03-07。 查看文档源码 或者 报告页面问题。