dart_test.dart

void main() {
  // Listas
  print('===========================================');
  print('-------- Lists --------');
  print('===========================================');
  List<String> nssFlutter = ['NSS', 'Agile', 'Scrum'];
    
  nssFlutter.add('Miwo');
  
  print(nssFlutter);
  print(nssFlutter.length);
  
  List<int> intList = new List.generate(3, (int index) => index * index);
  
  print(intList);
  
  nssFlutter.where((item) => item.contains('NSS')).forEach(print);
  
  List<String> newList = [...nssFlutter, 'Flutter'];
  
  print(newList);
  
  // Funciones
  
  print('===========================================');
  print('-------- Functions --------');
  print('===========================================');
  
  printGreeting();
  bool itIsChristmas = isItChristmas();
  print('Is it Christmas? $itIsChristmas');
  
  namedParamsFunction(surname: 'Luque', name: 'David');
  
  // Estructuras de control
  
  print('===========================================');
  print('-------- Control structures --------');
  print('===========================================');
  
  if (true) {
    print('It is true');
  }
  
  nssFlutter.forEach((item) => print(item));
  
  for (String item in nssFlutter) {
    print('Element $item');
  }
  
  // Clases
  
  print('===========================================');
  print('-------- Classes --------');
  print('===========================================');
  
  Employee employee = new Employee();  
  employee.name = 'Julian';
  
  print(employee.name);
  
  employee.skills();
  
  // Async - await
  printWithDelay('Async response');
  
  // Gestión de errores
  print('===========================================');
  print('-------- Try catch --------');
  print('===========================================');
  
  String myString = 'abc';
  
  try {
    double doubleValue = double.parse(myString);
    
    print(doubleValue + 5);
  } catch (e) {
    print(e);
  }
}

void printGreeting() {
  print('Hello');
}

bool isItChristmas() {
  DateTime today = new DateTime.now();
  return today.day == 25 && today.month == 12;
}

void namedParamsFunction({String name, String surname}) {
  print('Hello $name $surname');
}

Future<void> printWithDelay(String message) async {
  const oneSecond = Duration(seconds: 3);
  
  // Future representa la respuesta de una llamada asíncrona
  await Future.delayed(oneSecond);
  print('===========================================');
  print('-------- Async await --------');
  print('===========================================');
  print(message);
}

class Person {
  String name; // Las clases tienen getter y setter por defecto
}

// Esto es un mixin, lo podemos usar en las clases para compartir funciones comunes entre clases
class Coder {
  void skills() {
    print('I am good in JS LOL');
  } 
}

class Employee extends Person with Coder {  
  
}