How to convert IEnumerable to one comma separated string?

Question

Say that for debugging purposes, I want to quickly get the contents of an IEnumerable into one-line string with each string item comma-separated. I can do it in a helper met

Answer 1

string output = String.Join(",", yourEnumerable);

String.Join Method (String, IEnumerable

Concatenates the members of a constructed IEnumerable collection of type String, using the specified separator between each member.