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#Welcome to the CSharp7Features wiki!

Binary Literals & Digits Separators

New langauge Syntax to improve readability for numeric constants.

int binary = 0b1001_1010_1001_0100;
int hex = 0x1c_a0_41_fe;
double real = 1_00.99_9e-1_000;

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Out variables

Declare out variablie inline.

public static void OutVarTest(string @int)
{
  int.TryParse(@int, out int t);
  Console.WriteLine(t);
}

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Local Functions

Nesting functions inside other functions to limit their scope and visibility.

• Better performance

• Reduced memory pressure

  public static void BasicExample() { // Lambda Function Action lambdaFun = () => Console.WriteLine("I'm Lambda"); lambdaFun.Invoke(); // Local Functions Basic void EmptyLocalFunction() { Console.WriteLine("I'm Local"); }; EmptyLocalFunction(); }

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