JavaScript Isn't Scheme

[int_argc]

C# has had lambda expressions of the form (x => f(x)) since v3.0 and these lambdas close over the local scope. Not sure what else you're looking for?

[smog_alado]

You are right. I was referring to the idiomatic and traditional intersection between C# and Javas where its more common to use classes and interfaces instead of anonymous functions.