[Haskell-beginners] How to check the help page of a function?

[Francesco Ariis]

On Sun, May 17, 2015 at 08:00:51AM -0500, Mike Meyer wrote:
> I suspect the author's environment defines the doc command, as it's not
> built in. Links to two different ways (one that opened pages in a web
> browser, and the other that invoked the hoogle command) to do that have
> already been posted to the thread.

Probably haskell-docs [1]

[1] http://hackage.haskell.org/package/haskell-docs