带有泛型可比较as参数的Dart List.sortedBy函数不会操作该列表

List<T>.sortedBy<R extends Comparable<R>>(R Function(T) key)

class Student {
  final String name;
  final int age;

  Student(this.name, this.age);
}

void main() {
  List<Student> students = [
    Student('Alice', 20),
    Student('Bob', 18),
    Student('Charlie', 22),
  ];

  List<Student> sortedStudents = students.sortedBy((student) => student.age);

  print(sortedStudents.map((e) => e.name).join(', ')); // 输出: Bob, Alice, Charlie
}

void main() {
  List<Student> students = [
    Student('Alice', 20),
    Student('Bob', 18),
    Student('Charlie', 22),
  ];

  // 使用 sortedBy 函数
  List<Student> sortedStudents = students.sortedBy((student) => student.age);
  print(sortedStudents.map((e) => e.name).join(', ')); // 输出: Bob, Alice, Charlie

  // 如果希望修改原列表，可以使用 sort 方法
  students.sort((a, b) => a.age.compareTo(b.age));
  print(students.map((e) => e.name).join(', ')); // 输出: Bob, Alice, Charlie
}