Does including an entire namespace slow things down?
c#
Solution
It's much better to include the namespace in a `using` statement at the top of your class. The compiler doesn't care; it will emit the same IL both ways, and your code will be shorter and easier to read.
Problem
Is there any evidence that suggests including a whole namespace in c# slows things down? Is it better to do this ``` System.IO.Path.Combine.... ``` Or to include the whole System.IO namespace?