What to use instead of array.join if RHS is not a range?

[Andrej Mitrovic]

On 11/27/12, Jonathan M Davis <jmdavisProg at gmx.com> wrote:
> Rather, you're asking it to insert an element
> between
> every element in range, which is similar but not the same.

In that case, which function to use? Because it already behaves in
this way for strings.