prefer_if_null_operators
Prefer using ??
operators.
Details
#PREFER using ??
operators instead of null
checks and conditional
expressions.
BAD:
dart
v = a == null ? b : a;
GOOD:
dart
v = a ?? b;
Enable
#To enable the prefer_if_null_operators
rule,
add prefer_if_null_operators
under linter > rules in your
analysis_options.yaml
file:
analysis_options.yaml
yaml
linter:
rules:
- prefer_if_null_operators
If you're instead using the YAML map syntax to configure linter rules,
add prefer_if_null_operators: true
under linter > rules:
analysis_options.yaml
yaml
linter:
rules:
prefer_if_null_operators: 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。