first dart nested function

main.dart

void main(){
  
  var num = 47;
  //is and is!
  print(num is String);
  print(num is! bool);
  print(num is int);
  
  //If statement
  if(num is! int){
    print("$num is not an int");
  }
  else {
    print("$num is an int!");
  }
  
  void evaluate(int num){
    if(num >=50){
      print("$num is greater than or equal to 50");
    }
    else if(num>=25){
      print("$num is greater than or equal to 25 and less than 50");
    }
    else {
      print("$num is less than 25");
    }
	}
  
  evaluate(num);
  num = 1100;
  evaluate(num);
  num = -34;
  evaluate(num);
  num = 34;
  evaluate(num);
}