[erlang-questions] How can I determine if a list is a just a string or a list of strings?

[Ulf Wiger]

Magnus Falk wrote:
> Hi all,
> 
> I have a variable that can either contain a list of strings or a just a
> string. Is there a good way to tell what kind I'm, dealing with?
> 
> "192.168.1.18" vs. ["192.168.1.18", "192.168.1.19"]

The classic 'dirty trick' test is is_integer(hd(String)).

BR,
Ulf W
-- 
Ulf Wiger
CTO, Erlang Training & Consulting Ltd
http://www.erlang-consulting.com