The very best new options in C# 13

With C# 13, you may specify the ESC character far more concisely as proven within the following code snippet:

char esc="e";

Implicit index entry

With C# 13, the implicit “from the tip” index operator ^ can now be utilized in object initializers. You should use ^ to specify a place in a set that’s relative to the tip of the gathering.

For instance, take into account the next class.

class InitializerDemo
{
    public int[] integers { get; set; } = new int[5];
}

Now you can use the next piece of code in C# 13 to make the most of the index operator.

var arr = new InitializerDemo
{
    integers =
    {
        [0] = 100,
        [^1] = 1000
    }
};

Once you execute the above program, arr.Integers[0] may have the worth 100 whereas arr.Integers[4] may have the worth 1000. You should use the next line of code to show the values of the integer array on the console.

Console.WriteLine("The worth of arr.Integers[0] is {0} and arr.Integers[4] is {1}", arr.Integers[0], arr.Integers[4]);

Determine 2 exhibits the output on the console when the code is executed.

IDG

TargetFramework .NET 9

Notice that you will want to have .NET 9 put in in your pc to work with C# 13. If you wish to change your present initiatives to make use of C# 13, you’ll need to set the TargetFramework to .NET 9 as proven within the code snippet given beneath.

<Venture Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <OutputType>Exe</OutputType>
        <LangVersion>preview</LangVersion>
    <TargetFramework>net9.0</TargetFramework>
    <ImplicitUsings>allow</ImplicitUsings>
    <Nullable>allow</Nullable>
  </PropertyGroup>
</Venture>

The brand new options and enhancements in C# 13 outlined on this article gives you extra flexibility and aid you write cleaner, extra maintainable C# code. To discover the brand new options of C# 13, you must obtain the newest preview of Visible Studio 2022 with .NET 9. You’ll be able to be taught extra in regards to the new options in C# 13 right here and right here.