Convert `List` to comma-separated string

Question

Is there a fast way to convert List to a comma-separated string in C#?

I do it like this but Maybe there is a faster or more

Answer 1

That's the way I'd prefer to see if I was maintaining your code. If you manage to find a faster solution, it's going to be very esoteric, and you should really bury it inside of a method that describes what it does.

(does it still work without the ToArray)?