RE: http://www.aaron-powell.com/javascript-singleton

closures

// That's more exploiting JavaScript closures and global scope than re-writing functions. Can't you do the same in C#?

[Test]
public void test_we_can_rewrite_variable_in_closure()
{
    System.Func<string, string> fn = (a) =>
    {
        fn = (b) => "Goodbye " + b;
        return "Hello " + a;
    };

    Assert.AreEqual("Hello slace", fn("slace"));
    Assert.AreEqual("Goodbye slace", fn("slace"));
    Assert.AreEqual("Goodbye slace", fn("slace"));
}

// That worked but I did get into some trouble when I tried to use fn inside fn.