Dart Functions 사용법

void main() {
 int result = calculator(3, 8, multiply);
  print(result);
}

Function calculator = (int n1, int n2, Function calculation){
  return calculation(n1, n2);
};

int add(int n1, int n2){
  return n1 + n2;
}

int multiply(int n1, int n2){
  return n1 * n2;
}