[Haskell-cafe] lightweight web interface for Haskell?

Michael Snoyman michael at snoyman.com
Sat Aug 23 18:41:04 UTC 2014

On Sat, Aug 23, 2014 at 9:36 PM, Richard Eisenberg <eir at cis.upenn.edu>

> Hi Cafe,
> Does anyone know of a website where I can write a few lines of Haskell and
> have them run? Ideally, there would be a place to write a module and then a
> place to load the module into GHCi. I seem to recall something that fit my
> needs at paste.hskll.org, but that site is no longer working.
> I'm asking because I'll be teaching an undergraduate course this fall in
> introductory Haskell. There are no prerequisites for the course, and my
> course roster suggests that I'll have several students with no programming
> background at all. (This is great, actually -- I love facilitating a new
> programmer's first steps!) It might be nice to get students off the ground
> quickly before bogging them down with installation details -- hence the
> website I'm looking for.
> Thanks!
> Richard
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I'd recommend looking into FP Haskell Center[1], a full online Haskell IDE,
or just using School of Haskell[2] which allows running code, but doesn't
offer all IDE features (e.g., type information isn't present). Both are
freely available, though if you're going to recommend a number of users to
go onto the site at once, please give us a heads-up in advance so we can
boost the base number of servers and avoid any delays in spinning up an EC2
instance for the extra load.

Feel free to follow up privately if you have specific questions about how
this would work for a course, this wouldn't be the first time FPHC has been
used this way.


[1] https://www.fpcomplete.com/business/haskell-industry/
[2] https://www.fpcomplete.com/school
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