.NET stack and heap, what goes where when I declare a string?

Question

If I execute this line I create a string which is a reference.

string mystring = \"Hello World\"

Is variable mystring in the

Answer 1

Official Answer: it's an implementation detail and you don't need to know.

It is of course knowable for a specific (current) version of the framework:

1) if this is inside a method, then mystring is a reference variable, usually on the stack. But when it is captured, or when the method is async, or ... it is moved to the heap.

2) if this is inside a class, then each instance will contain a mystring reference as a field, stored on the heap.

In both cases there is an anonymous string object on the heap containing "Hello World"