dart-3-switch-expression.md

gistfile1.txt

# Utilizando Switch Case no Dart 3

## Antes
```dart
void main() {
  int dayNumber;
  var dayOfWeek = 'Wednesday';

  switch (dayOfWeek) {
    case 'Monday':
      {
        dayNumber = 1;
      }
      break;
    case 'Tuesday':
      {
        dayNumber = 2;
      }
      break;
    case 'Wednesday':
      {
        dayNumber = 3;
      }
      break;
    case 'Thursday':
      {
        dayNumber = 4;
      }
      break;
    case 'Friday':
      {
        dayNumber = 5;
      }
      break;
    default:
      {
        dayNumber = 0;
      }
      break;
  }

  print(dayNumber);
}
```

## Agora
```dart
void main() {
  var dayOfWeek = 'Monday';
  var dayNumber = switch (dayOfWeek) {
    'Monday' => 1,
    'Tuesday' => 2,
    'Wednesday' => 3,
    'Thursday' => 4,
    'Friday' => 5,
    'Saturday' => 6,
    'Sunday' => 7,
    _ => 10, //Default value
  };
  print(dayNumber);
}
```