String concatenate in Dart

main.dart

class Person{
  String name;
}

main(){
  Person person = Person();
  person.name = "benznest";
  
  int money = 100;
  
  print("${person.name} , $money"); // benznest , 100
  
  print(person.name + " , " + money.toString()); // benznest , 100
}