avoid_null_checks_in_equality_operators

Don't check for null in custom == operators.

This rule has been removed as of the latest Dart releases.

DON'T check for null in custom == operators.

As null is a special value, no instance of any class (other than Null) can be equivalent to it. Thus, it is redundant to check whether the other instance is null.

BAD:

class Person {
  final String? name;

  @override
  operator ==(Object? other) =>
      other != null && other is Person && name == other.name;
}

GOOD:

class Person {
  final String? name;

  @override
  operator ==(Object? other) => other is Person && name == other.name;
}

This rule has been removed.

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

linter:
  rules:
    - avoid_null_checks_in_equality_operators

除非另有说明，文档之所提及适用于 Dart 3.5.3 版本，本页面最后更新时间: 2024-08-02。 查看文档源码 或者 报告页面问题。