In .NET Core 2.1 a new struct was added. It’s called  System.HashCode  and it makes generating hash codes super convenient. Have a look at this class. 

class Person
{
public string FirstName { get; set; }
public string LastName { get; set; }

public override int GetHashCode() => HashCode.Combine(FirstName, LastName);
}

The previews of EF Core 5.0 require .NET Standard 2.1. This means:

• EF Core 5.0 runs on .NET Core 3.1; it does not require .NET 5.
  • This may change in future previews depending on how the plan for .NET 5 evolves.
• EF Core 5.0 runs on other platforms that support .NET Standard 2.1.
• EF Core 5.0 will not run on .NET Standard 2.0 platforms, including .NET Framework. 

clicking an Internet Explorer icon will launch Microsoft Edge, and this is a behavior that cannot be changed 

TypeScript has some "interesting" limitations when it comes to overloading functions. But it also offers you some options when you need more flexibility in declaring functions, including both optional parameters and infinite parameter lists.

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