C Sharp - The Most Favorite Functionality in C Sharp

In a maths paper, you don't sort of sit there with a set of starting values in a variable and then write new ones. You just say the old one is this transformed. And that's what the transformation looks like. When you write any sort of coding that way, you tend to get a product which is it's more robust amongst other things. It tends to be more predictable. So I'd find it even more easy to debug in many ways because when I'm leaving those previous states in place as they were. They are most favorite feature in C sharp since, well, probably the last functional feature that they added.