Difference between revisions of "Learning Haskell"

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[[Category:Tutorials]]
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__NOTOC__
  
   
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This portal points to places where you can go if you want to learn Haskell.
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=Learning Haskell=
  
   
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The [[Introduction|Introduction to Haskell]] on the Haskell website tells you what Haskell gives you: substantially increased programmer productivity, shorter, clearer, and more maintainable code, fewer errors, higher reliability, a smaller semantic gap between the programmer and the language, shorter lead times. There is an old but still relevant paper about [http://www.cse.chalmers.se/~rjmh/Papers/whyfp.html Why Functional Programming Matters] (PDF) by John Hughes. More recently, Sebastian Sylvan wrote an article about [[Why Haskell Matters]].
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==Introduction==
  
   
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Join the [http://www.reddit.com/r/haskell Haskell subreddit], where we do regular Q&A threads called [[Hask Anything]] (that's the archive).
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Haskell is a general purpose, purely functional programming language. This portal points to places where you can go if you want to learn Haskell.
 
   
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There is also a [http://www.haskell.org/haskellwiki/Comparison table comparing Haskell to other functional languages]. Many questions about functional programming are answered by the [http://www.cs.nott.ac.uk/~gmh//faq.html comp.lang.functional FAQ].
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The [[Introduction]] on the [[Haskell]] homepage tells you that Haskell gives you: substantially increased programmer productivity; shorter, clearer, and more maintainable code; fewer errors; higher reliability; a smaller "semantic gap" between the programmer and the language; shorter lead times.
  
   
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You can ask questions to members of the Haskell community on mailing lists, IRC, or StackOverflow. We recommend installing the [http://www.haskell.org/platform/ Haskell Platform].
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There is an old -- but still relevant -- paper about [http://www.md.chalmers.se/~rjmh/Papers/whyfp.html Why Functional Programming Matters] by John Hughes. More recently Sebastian Sylvan wrote an article about [[Why Haskell Matters]]. And there is a [http://www.haskell.org/haskellwiki/Comparison table comparing Haskell to other functional languages]. Many questions about functional programming are answered by the [http://www.cs.nott.ac.uk/~gmh//faq.html comp.lang.functional FAQ].
  
   
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== Training courses ==
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==Implementations==
  
   
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Short training courses aimed at existing programmers
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{| border=1 cellspacing=0 cellpadding=5 bgcolor=#FFFFFF width=100%|
  
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! Messages
  
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! Size
  
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! Tools
  
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! Remarks
 
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|-
  
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| [http://www.haskell.org/hugs/ Hugs]
  
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| +/-
  
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| ++
  
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| Fast compilation; used a lot for learning Haskell
  
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|-
  
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| [http://www.haskell.org/ghc/ GHC]
  
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| ++
  
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| Many language extensions; generated code is very fast
  
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|-
  
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| [http://www.cs.york.ac.uk/fp/nhc98/ NHC]
  
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| ?
  
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| ++
  
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| Profiling, debugging, tracing
  
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|-
  
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| [http://www.cs.uu.nl/helium/ Helium]
  
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| ++
  
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| -
  
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| No type classes (yet!) and thus incompatible with most material on this site. Made for teaching/learning.
  
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* [http://www.well-typed.com/services_training On-site and public training courses] by Well-Typed (2-day intro, 2-day advanced, custom on-site courses)
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==Books and tutorials==
  
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* [http://www.nobleprog.co.uk/haskell/training Public training courses] by NobleProg and Nilcons
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* [http://www.cs.ox.ac.uk/softeng/subjects/FPR.html Software Engineering course on Functional Programming] at the University of Oxford (1-week course)
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* [http://www.cs.uu.nl/wiki/USCS Summerschool on Applied Functional Programming] at Utrecht University (2-week course)
   
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== Material for self-study ==
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{| border=1 cellspacing=0 cellpadding=5 width=100% valign=top style="text-align:left" |
  
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! Textbooks
  
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! Tutorials
  
   
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Below there are links to certain introductory material. If you want to dig deeper, see [[Books and tutorials]].
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|- style="vertical-align:top"
  
   
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=== Textbooks ===
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|
  
   
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* [http://www.haskell.org/soe The Haskell School of Expression]
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* [http://www.haskellbook.com/ Haskell Programming from first principles]
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* [http://www.cs.ukc.ac.uk/people/staff/sjt/craft2e/ Haskell: the Craft of Functional Programming]
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* [http://www.cs.yale.edu/homes/hudak/SOE/ The Haskell School of Expression]
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* [http://www.prenhall.com/allbooks/ptr_0134843460.html Introduction to Functional Programming using Haskell]
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* [http://www.haskellcraft.com/ Haskell: the Craft of Functional Programming]
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* [http://books.cambridge.org/0521277248.htm An Introduction to Functional Programming Systems Using Haskell]
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* [https://www.pearson.com/us/higher-education/program/Bird-Introduction-Functional-Programming-2nd-Edition/PGM144889.html Introduction to Functional Programming using Haskell]
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* [http://www.cambridge.org/us/knowledge/isbn/item1129654/Introduction%20to%20Functional%20Programming%20Systems%20Using%20Haskell/?site_locale=en_US An Introduction to Functional Programming Systems Using Haskell]
 
* [http://www.iro.umontreal.ca/~lapalme/Algorithms-functional.html Algorithms: A functional programming approach]
  
* [http://www.iro.umontreal.ca/~lapalme/Algorithms-functional.html Algorithms: A functional programming approach]
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* [http://homepages.cwi.nl/~jve/HR/ The Haskell Road to Logic, Maths, and Programming]
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* [http://homepages.cwi.nl/~jve/HR/ The Haskell Road to Logic, Maths, and Programming] (also freely [http://fldit-www.cs.uni-dortmund.de/~peter/PS07/HR.pdf available online]).
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* [http://www.cs.nott.ac.uk/~gmh/book.html Programming in Haskell]
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* [http://book.realworldhaskell.org/ Real World Haskell]
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* [http://learnyouahaskell.com Learn You a Haskell for Great Good!]
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* [http://happylearnhaskelltutorial.com Happy Learn Haskell Tutorial]
   
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=== Online tutorials ===
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|
  
   
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* [[Meta-tutorial]]
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* [http://www.isi.edu/~hdaume/htut Yet Another Haskell Tutorial]
  
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* [http://pluralsight.com/training/Courses/Find?highlight=true&searchTerm=haskell Haskell Fundamentals - get started and learn key concepts] at Pluralsight (2-part, 5 hour online course)
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* [ftp://ftp.geoinfo.tuwien.ac.at/navratil/HaskellTutorial.pdf Haskell-Tutorial]
  
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* [http://en.wikibooks.org/wiki/Haskell Haskell Wikibook] A thorough textbook with a step-by-step beginners track assuming no programming background. Also includes many advanced concepts, and adaptations of "Yet Another Haskell Tutorial", "Write Yourself a Scheme in 48 Hours", and "All about monads".
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* [http://www.informatik.uni-bonn.de/~ralf/teaching/Hskurs_toc.html Online Haskell Course] (German)
  
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* [http://pub.hal3.name/daume02yaht.pdf YAHT - Yet Another Haskell Tutorial] (good tutorial available online)
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* [http://www.haskell.org/tutorial/ A Gentle Introduction to Haskell]
  
 
* [http://www.cs.ou.edu/~rlpage/fpclassCurrent/textbook/haskell.shtml Two dozen short lessons]
  
* [http://www.cs.ou.edu/~rlpage/fpclassCurrent/textbook/haskell.shtml Two dozen short lessons]
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* [http://www.haskell.org/tutorial/ A Gentle Introduction to Haskell] - classic text, but not so gentle really :D
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* [http://halogen.note.amherst.edu/%7Ejdtang/scheme_in_48/tutorial/overview.html Tackling the Awkward Squad] (on monads and IO, concurrency and exceptions)
  
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* [ftp://ftp.geoinfo.tuwien.ac.at/navratil/HaskellTutorial.pdf Haskell-Tutorial]
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* [http://halogen.note.amherst.edu/%7Ejdtang/scheme_in_48/tutorial/overview.html Write Yourself a Scheme in 48 Hours]
  
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* [http://lasche.codingcrew.de/kurse/haskell/hskurs_index.htm Online Haskell Course] (German)
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* [http://www.haskell.org/haskellwiki/Hitchhikers_Guide_to_the_Haskell Hitchhikers Guide to Haskell]
  
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* [http://collection.openlibra.com.s3.amazonaws.com/pdf/haskell_tutorial_for_c_programmers_en.pdf Haskell tutorial for C Programmers]
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* [http://learnyouahaskell.com/ Learn You a Haskell for Great Good!] Beautiful, illustrated Haskell tutorial for programmers with less of a functional programming background.
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* [http://happylearnhaskelltutorial.com/ Happy Learn Haskell Tutorial] Up to date complete beginner illustrated tutorial that uses many basic examples and exercises , going very slowly step by step.
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* [http://www.youtube.com/playlist?list=PL2672EBC57C1F5F9B Learning Haskell] Ongoing tutorial in the form of YouTube videos; updates slowly.
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*[https://stevekrouse.github.io/hs.js/ Pattern matching, first-class functions, and abstracting over recursion in Haskell], a simulation of the evaluation of map, foldr and foldl.
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* [https://www.schoolofhaskell.com/ School of Haskell]
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* [http://learn.hfm.io/ Learning Haskell] — a tutorial combining clear explanations, graphics programming, and hands-on screencasts to teach you the essential concepts of functional programming in Haskell.
   
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=== Advanced tutorials ===
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|-
  
   
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* [[Hitchhikers guide to Haskell]]
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! Reference
  
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* [http://en.wikibooks.org/wiki/Write_Yourself_a_Scheme_in_48_Hours Write Yourself a Scheme in 48 Hours]
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! Course Material
  
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* [http://research.microsoft.com/en-us/um/people/simonpj/papers/marktoberdorf/ Tackling the Awkward Squad] (on I/O, interfacing to C, concurrency and exceptions)
   
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=== Debugging/profiling/optimization ===
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|- style="vertical-align:top"
  
   
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=== Monads ===
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* [http://blog.sigfpe.com/2006/08/you-could-have-invented-monads-and.html You Could Have Invented Monads! (And Maybe You Already Have.)]
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* [http://www.haskell.org/hawiki/HaskellNewbie Haskell Newbie]
  
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* [http://homepages.inf.ed.ac.uk/wadler/papers/marktoberdorf/baastad.pdf Monads for Functional Programming]
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* [http://www.cs.uu.nl/~afie/haskell/tourofsyntax.html Tour of the Haskell Syntax]
  
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* [http://zvon.org/other/haskell/Outputglobal/index.html Haskell Reference]
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* [http://www.haskell.org/haskellwiki/All_About_Monads All about monads]
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* [[IO inside|IO inside: down the Rabbit Hole]]
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* [http://www.haskell.org/haskellwiki/Reference_card Haskell Reference Card]
  
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* [http://www.cs.uu.nl/~afie/haskell/tourofprelude.html Tour of the Haskell Prelude]
  
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* [http://www.cs.uu.nl/helium/docs/TourOfPrelude.html Tour of the Helium Prelude]
  
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* [http://www.cs.ukc.ac.uk/people/staff/sjt/craft2e/errors/allErrors.html Some common Hugs error messages]
  
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* [http://www.haskell.org/haskellwiki/Category:Idioms Some Haskell Idioms]
  
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* [http://www.haskell.org/hawiki Questions and Answers (old Haskell wiki)]
  
   
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=== Type classes ===
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|
  
   
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* [http://homepages.inf.ed.ac.uk/wadler/papers/class/class.ps.gz The paper that for the first time introduced type classes and their implementation using dictionaries]
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* [http://www.cs.chalmers.se/Cs/Grundutb/Kurser/d1pt/d1pta/external.html Programming in Haskell, Chalmers]
  
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* [[Research papers/Type systems#Type classes|More papers on the type classes]]
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* [http://www.cs.caltech.edu/courses/cs11/material/haskell/index.html CS 11 Caltech]
  
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* [http://www.cs.uu.nl/docs/vakken/lfp/ Functional programming]: course notes ([http://www.cs.uu.nl/~jeroen/courses/fp-eng.pdf English], [http://www.cs.uu.nl/~jeroen/courses/fp-nl.pdf Dutch], [http://www.cs.uu.nl/~jeroen/courses/fp-sp.pdf Spanish]), slides in Dutch
  
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* [http://www.cse.unsw.edu.au/~cs1011/ CS1011]: Tutorials, lab exercises and solutions
  
   
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=== Generic programming ===
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|}
  
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* [[Scrap your boilerplate]]
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=== Popular libraries ===
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* ByteStrings?
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* [http://legacy.cs.uu.nl/daan/download/parsec/parsec.html Parsec, a fast combinator parser]
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* [[Modern array libraries]]
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* [http://www.haskell.org/haskellwiki/Gtk2Hs/Tutorials Gtk2Hs, the GUI library]
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* [https://ocharles.org.uk/blog/ 24 Days of Hackage] (blog posts about many popular libraries)
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=== Reference ===
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* The official language definition: [[Language and library specification]]
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* [http://www.letu.edu/people/jaytevis/Programming-Languages/Haskell/tourofprelude.html Tour of the Haskell Prelude]
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* [http://zvon.org/other/haskell/Outputglobal/index.html Haskell Reference]
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* Haskell [[Reference card]]
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* [http://members.chello.nl/hjgtuyl/tourdemonad.html A tour of the Haskell Monad functions]
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* [http://www.cs.uu.nl/wiki/bin/view/Helium/ATourOfTheHeliumPrelude Tour of the Helium Prelude]
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* [http://www.cs.kent.ac.uk/people/staff/sjt/craft2e/errors/allErrors.html Some common Hugs error messages]
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* [http://cheatsheet.codeslower.com/ The Haskell Cheatsheet] - A reference card and mini-tutorial in one.
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* A [http://www.haskell.org/haskellwiki/Category:Glossary Glossary] of common terminology.
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* [http://dev.stephendiehl.com/hask/#intro What I Wish I Knew When Learning Haskell] by Stephen Diehl
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=== Course material ===
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* [http://www.cse.chalmers.se/edu/course/TDA555/ Introduction to Functional Programming, Chalmers] (for beginners at programming)
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* [http://www.cse.chalmers.se/edu/course/TDA452/ Functional Programming, Chalmers]
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* [http://www.cse.chalmers.se/edu/course/afp/ Advanced Functional Programming, Chalmers]
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* [http://www.cse.chalmers.se/edu/course/pfp/ Parallel Functional Programming, Chalmers]
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* [http://www.shuklan.com/haskell Introduction to Haskell], University of Virginia CS 1501
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* [http://www.cs.caltech.edu/courses/cs11/material/haskell/index.html CS 11 Caltech]
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* [http://www.cs.uu.nl/docs/vakken/lfp/ Functional programming]: course notes ([http://www.staff.science.uu.nl/~fokke101/courses/fp-eng.pdf English], [http://www.staff.science.uu.nl/~fokke101/courses/fp-nl.pdf Dutch], [http://www.staff.science.uu.nl/~fokke101/courses/fp-sp.pdf Spanish]), slides in Dutch
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* [http://www.cse.unsw.edu.au/~cs1011/05s2/ CS1011]: Tutorials, lab exercises and solutions
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* Stanford - [http://www.scs.stanford.edu/11au-cs240h/ Functional Systems in Haskell]
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* [http://www.seas.upenn.edu/~cis194/spring13/lectures.html CIS 194 Introduction to Haskell], University of Pennsylvania
   
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== Trying Haskell online ==
   
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There are several websites where you can enter a Haskell program and run it. They are (in no particular order):
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Check [http://www.haskell.org/haskellwiki/Books_and_tutorials Books and tutorials] for a more comprehensive list.
  
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* [https://cloud.sagemath.com/ SageMathCloud]
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* [https://www.fpcomplete.com/school/using-fphc FP Haskell Center]
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* [http://tryhaskell.org/ Try Haskell]
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* [http://www.codeworld.info/ Codeworld]
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* [http://chrisuehlinger.com/LambdaBubblePop/ Bubble Pop!], the satisfaction of popping bubble wrap, combined with the satisfaction of really elegant functional programming!
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* [http://tryplayg.herokuapp.com/ Try Haste & HPlayground client-side framework]; the source code is on [https://github.com/agocorona/tryhplay GitHub]
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* [https://koding.com/ Koding] is a cloud based IDE which supports Haskell and several other languages. Free accounts allow one virtual machine.
   
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To create a browser based environment yourself:
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(perhaps these pages can be merged somehow, or the more introductory material can go on this page, and the advanced books and papers can go on a different page?)
  
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* [http://gibiansky.github.io/IHaskell/ IHaskell]

Revision as of 10:01, 2 July 2017


This portal points to places where you can go if you want to learn Haskell.

The Introduction to Haskell on the Haskell website tells you what Haskell gives you: substantially increased programmer productivity, shorter, clearer, and more maintainable code, fewer errors, higher reliability, a smaller semantic gap between the programmer and the language, shorter lead times. There is an old but still relevant paper about Why Functional Programming Matters (PDF) by John Hughes. More recently, Sebastian Sylvan wrote an article about Why Haskell Matters.

Join the Haskell subreddit, where we do regular Q&A threads called Hask Anything (that's the archive).

There is also a table comparing Haskell to other functional languages. Many questions about functional programming are answered by the comp.lang.functional FAQ.

You can ask questions to members of the Haskell community on mailing lists, IRC, or StackOverflow. We recommend installing the Haskell Platform.

Training courses

Short training courses aimed at existing programmers

Material for self-study

Below there are links to certain introductory material. If you want to dig deeper, see Books and tutorials.

Textbooks

Online tutorials

Advanced tutorials

Debugging/profiling/optimization

Monads

Type classes

Generic programming

Popular libraries

Reference

Course material

Trying Haskell online

There are several websites where you can enter a Haskell program and run it. They are (in no particular order):

To create a browser based environment yourself:

Retrieved from "https://wiki.haskell.org/index.php?title=Learning_Haskell&oldid=61959"