Will using 'var' affect performance?

Question

Earlier I asked a question about why I see so many examples use the varkeyword and got the answer that while it is only necessary for anonymous types, that it is used noneth

Answer 1

As nobody has mentioned reflector yet...

If you compile the following C# code:

static void Main(string[] args)
{
    var x = "hello";
    string y = "hello again!";
    Console.WriteLine(x);
    Console.WriteLine(y);
}

Then use reflector on it, you get:

// Methods
private static void Main(string[] args)
{
    string x = "hello";
    string y = "hello again!";
    Console.WriteLine(x);
    Console.WriteLine(y);
}

So the answer is clearly no runtime performance hit!