Question

I need some clarification over the below code. I know that str.Length will return the number of characters in the string.

string str = "Sample string";
int length = str.Length;

My clarification is: Since we are not creating the string object, how the “Sample string” string is assigned to str variable?

Answer 1

The string literal "Sample string" is created by the compiler, and will be stored in the assembly for you. When you assign it to your reference, you get a reference to that literal string.

There is a ldstr instruction that specifically loads literal strings from assembly metadata into a string object reference. It is that reference that has it’s Length property checked.