Solution: Social Media Dashboard

void main() {
  final recentViews = [120, 200, 150];
  final currentTags = <String>{'#dart', '#coding'};
  final newTags = <String>{'#flutter', '#dart'};
  final userProfile = <String, String>{
    'handle': '@dart_dev',
    'status': 'online'
  };
  
  recentViews.add(300);
  print(recentViews.length);
  
  final combinedTags = currentTags.union(newTags);
  print(combinedTags);
  
  final handle = userProfile['handle'];
  print(handle);
}