unnecessary_lambdas

Closure should be a tearoff.

The analyzer produces this diagnostic when a closure (lambda) could be replaced by a tear-off.

The following code produces this diagnostic because the closure passed to forEach contains only an invocation of the function print with the parameter of the closure:

void f(List<String> strings) {
  strings.forEach((string) {
    print(string);
  });
}

Replace the closure with a tear-off of the function or method being invoked with the closure:

void f(List<String> strings) {
  strings.forEach(print);
}

除非另有说明，文档之所提及适用于 Dart 3.7.3 版本，本页面最后更新时间: 2025-05-08。 查看文档源码 或者 报告页面问题。