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

[Raphael Gaschignard]

Kind of surprised at the attitude shown in this thread. It's entirely
reasonable to expect a REPL to offer help functionality (especially coming
from Python/R), even if , digging deeper, it turns out to be difficult to
offer. Mainly because docs aren't auto-included with packages.

   ghci isn't meant to be a full-blown dev environment, but hey the python
console isn't meant to either.

  I think a tangential issue is that there's no "blessed" solution, so
we're worried about lock-in.

https://wiki.haskell.org/GHC/GHCi <-- this page describes how to set up
your environment to get output from hoogle into ghci (by doing :hoogle map
for example).


On Mon, May 18, 2015 at 2:28 AM Kim-Ee Yeoh <ky3 at atamo.com> wrote:

>
> On Sun, May 17, 2015 at 6:18 AM, Peng Yu <pengyu.ut at gmail.com> wrote:
>
>> Many other languages have help pages in the command (see help() in
>> python and R). Why haskell doesn't have such a feature?
>>
>
> You could flip the question around and ask, why do Python and R insist on
> incorporating emacs functionality in their REPLs instead of keeping things
> orthogonal. Otherwise, there's a lot of repetition.
>
> As Brandon explained, ghci isn't meant to be the
> everything-and-the-kitchen-sink development environment.
>
> It used to be that someone starting Haskell would have learned Unix and
> its ethos beforehand. That's not a ding against you, btw, just an
> observation that ghci was designed in an earlier era. Patches to ghci are
> most welcome!
>
> -- Kim-Ee
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