Relevance question about string

Customizations
1

Could the Relevance be used in string like the following?

EX: exists file of folder “C:” & (name of operating system) & “”

Could anyone help me the answer?

2

Not sure what you are trying to accomplish but …

q: pathname of folder “C:” & (name of operating system) & ""
A: C:Win10
T: 0.673 ms
I: singular string

q: exists folder (pathname of folder “C:” & (name of operating system) & “”)
A: False
T: 0.532 ms
I: singular boolean

3

OK…I think I got it.
Thanks for help.