Comments on: String.IsNullOrEmpty Shootout

By: Chris

Chris — Wed, 23 Sep 2009 22:18:02 +0000

When compiling in release mode, the IsNullOrEmpty method is expanded inline, so the function call disappears and the gain no longer exists.

string = "" or = string.Empty? | keyongtech — Sun, 18 Jan 2009 17:15:49 +0000

[...] string = "" or = string.Empty? A short note on efficiency can be found here. http://www.csharp411.com/stringisnullorempty-shootout/ "Sami" wrote: > string = "" or string = string.Empty? > should is the [...]

OmegaMan — Thu, 31 Jul 2008 18:26:05 +0000

Suggestion...edo your test using the Stopwatch Class instead of datetime.

Rob — Mon, 25 Feb 2008 03:42:27 +0000

Errr…if you use the shiny new .NET symbols and debug into the framework from VS.NET 2008 you will see that in String.cs IsNullOrEmpty is really just:

public static bool IsNullOrEmpty(string value)
{
return (value == null || value.Length == 0);
}

So the small additional cost is really pushing and poping the stack etc.