2010년 이후 도입된 C# 기능들 몇가지

1. Async/Await : 태스크를 기다리기 위해 별도 Thread 사용하지 않아도 됨

  async Task<string> GetDataAsync()
  {
      var result = await httpClient.GetStringAsync(url);
      return result;
  }

2. Null-conditional operator (?.) : null check 안해도 됨

   string name = person?.Name;

3. Expression-bodied member : dynamic한 readonly 변수

  public string FullName => $"{FirstName} {LastName}";

4. is expression

  if (obj is int i)
  {
      Console.WriteLine($"It's an integer: {i}");
  }

5. Tuples

   (string Name, int Age) person = ("Alice", 30);    

6. Inside function (lamda function)

  void OuterFunction()
  {
      int InnerFunction(int x) => x * x;
      var result = InnerFunction(5);
  }

7. 간단한 switch

  string GetSound(Animal animal) => animal switch
  {
      Dog => "Woof",
      Cat => "Meow",
      _ => "Unknown"
  };

8. Nullable reference type

  string? nullableString = null;

9. Record : 순서가 없는 named structure

  public record Person(string FirstName, string LastName);

10. init-only 설정 property

  public string Name { get; init; }