Difference between revisions of "Learning Haskell"

Revision as of 12:10, 26 August 2014

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.

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

On-site and public training courses by Well-Typed (2-day intro, 2-day advanced, custom on-site courses)
Software Engineering course on Functional Programming at the University of Oxford (1-week course)
Summerschool on Applied Functional Programming at Utrecht University (2-week course)

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

Meta-tutorial
Haskell Fundamentals - get started and learn key concepts at Pluralsight (2-part, 5 hour online course)
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".
YAHT - Yet Another Haskell Tutorial (good tutorial available online)
Two dozen short lessons
A Gentle Introduction to Haskell - classic text, but not so gentle really :D
Haskell-Tutorial
Online Haskell Course (German)
Haskell tutorial for C Programmers
Learn You a Haskell for Great Good! Beautiful, illustrated Haskell tutorial for programmers with less of a functional programming background.
Learning Haskell Ongoing tutorial in the form of YouTube videos; updates slowly.
Pattern matching, first-class functions, and abstracting over recursion in Haskell, a simulation of the evaluation of map, foldr and foldl.

Advanced tutorials

Hitchhikers guide to Haskell
Write Yourself a Scheme in 48 Hours
Tackling the Awkward Squad (on I/O, interfacing to C, concurrency and exceptions)

Debugging/profiling/optimization

Monads

Type classes

Generic programming

Scrap your boilerplate

Popular libraries

Reference

The official language definition: Language and library specification
Tour of the Haskell Prelude
Haskell Reference
Haskell Reference card
A tour of the Haskell Monad functions
Tour of the Helium Prelude
Some common Hugs error messages
The Haskell Cheatsheet - A reference card and mini-tutorial in one.
A Glossary of common terminology.

Course material

Introduction to Functional Programming, Chalmers (for beginners at programming)
Functional Programming, Chalmers
Advanced Functional Programming, Chalmers
Parallel Functional Programming, Chalmers
Introduction to Haskell, University of Virginia CS 1501
CS 11 Caltech
Functional programming: course notes (English, Dutch, Spanish), slides in Dutch
CS1011: Tutorials, lab exercises and solutions
Stanford - Functional Systems in Haskell

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 something like that yourself:

IHaskell

@@ Line 36: / Line 36: @@
 * [[Meta-tutorial]]
+* [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)
-* [http://en.wikibooks.org/wiki/Haskell Haskell Wikibook] A long tutorial on Haskell that includes "Yet Another Haskell Tutorial", "Write Yourself a Scheme in 48 Hours" and "All about monads".
+* [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".
-* [http://www.cs.utah.edu/~hal/docs/daume02yaht.pdf YAHT - Yet Another Haskell Tutorial] (good tutorial available online, also [http://pub.hal3.name/daume02yaht.pdf here])
+* [http://pub.hal3.name/daume02yaht.pdf YAHT - Yet Another Haskell Tutorial] (good tutorial available online)
 * [http://www.cs.ou.edu/~rlpage/fpclassCurrent/textbook/haskell.shtml Two dozen short lessons]
 * [http://www.haskell.org/tutorial/ A Gentle Introduction to Haskell] - classic text, but not so gentle really :D
 * [ftp://ftp.geoinfo.tuwien.ac.at/navratil/HaskellTutorial.pdf Haskell-Tutorial]
 * [http://lasche.codingcrew.de/kurse/haskell/hskurs_index.htm Online Haskell Course] (German)
-* [http://ccfit.nsu.ru/~ikuznecov/doc/Haskell%20Tutorial%20for%20C%20Programmers/intro.html Haskell for C Programmers]
+* [http://collection.openlibra.com.s3.amazonaws.com/pdf/haskell_tutorial_for_c_programmers_en.pdf Haskell tutorial for C Programmers]
 * [http://learnyouahaskell.com/ Learn You a Haskell for Great Good!] Beautiful, illustrated Haskell tutorial for programmers with less of a functional programming background.
 * [http://www.youtube.com/playlist?list=PL2672EBC57C1F5F9B Learning Haskell] Ongoing tutorial in the form of YouTube videos; updates slowly.
+*[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.
 === Advanced tutorials ===
@@ Line 63: / Line 65: @@
 === Type classes ===
-* [http://homepages.inf.ed.ac.uk/wadler/papers/class/class.ps.gz The paper that at first time introduced type classes and their implementation using dictionaries]
+* [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]
 * [[Research papers/Type systems#Type classes|More papers on the type classes]]
@@ Line 94: / Line 96: @@
 * [http://www.cse.chalmers.se/edu/course/afp/ Advanced Functional Programming, Chalmers]
 * [http://www.cse.chalmers.se/edu/course/pfp/ Parallel Functional Programming, Chalmers]
+* [http://www.shuklan.com/haskell Introduction to Haskell], University of Virginia CS 1501
 * [http://www.cs.caltech.edu/courses/cs11/material/haskell/index.html CS 11 Caltech]
 * [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
 * [http://www.cse.unsw.edu.au/~cs1011/05s2/ CS1011]: Tutorials, lab exercises and solutions
 * Stanford - [http://www.scs.stanford.edu/11au-cs240h/ Functional Systems in Haskell]
+== Trying Haskell online ==
+There are several websites where you can enter a Haskell program and run it. They are (in no particular order):
+* [https://cloud.sagemath.com/ SageMathCloud]
+* [https://www.fpcomplete.com/school/using-fphc FP Haskell Center]
+* [http://tryhaskell.org/ Try Haskell]
+* [http://www.codeworld.info/ Codeworld]
+To create something like that yourself:
+* [http://gibiansky.github.io/IHaskell/ IHaskell]