Welcome to issue 264 of the HWN, an issue covering crowd-sourced bits
of information about Haskell from around the web. This issue covers the
week of March 17 to 30, 2013.
Quotes of the Week
* ddarius: (f x) is a partial application iff
f x == (curry (uncurry f) x)
* flebron: "Hey, I am Haskell; and this is lazy; so here's a
function; I'll call it, maybe."
* WinstonChurchill: It is a good thing for an uneducated man to read
books of quotations.
* ab9rf: (on duck typing) if you want a
duck-submarine-employee-tomato, you can do that
* johnw: Stealing lens from the gods, and then having my liver eaten
out daily.
* dibblego: scala puts road blocks in your way proportional to how
effective you want to be
* hiptobecubic: I want my programs to either be correct or violently
explode
* shachaf: edwardk will try to get you addicted to monoids. The first
one is always free.
* merijn: So apparently there's a footballer named lens, who played
some important part in the match against the Netherlands... Which
would explain the fact that twitter is telling me "lens" is
trending, I was starting to think haskell had won the PL revolution
with edwardk as our glorious leader ;)
* elliott: all I want for christmas is a boring lambdabot.
Top Reddit Stories
* What’s good for C++ is good for … Haskell!?
Domain: serpentine.com, Score: 101, Comments: 20
On Reddit: [1] http://goo.gl/B8Km5
Original: [2] http://goo.gl/tCB0a
* Anatomy of Programming Languages (in Haskell)
Domain: self.haskell, Score: 72, Comments: 29
On Reddit: [3] http://goo.gl/YmO5M
Original: [4] http://goo.gl/YmO5M
* Programming and Reasoning with Algebraic Effects and Dependent Types
Domain: edwinb.wordpress.com, Score: 58, Comments: 28
On Reddit: [5] http://goo.gl/xfH0Z
Original: [6] http://goo.gl/AdGEJ
* School of Haskell—Basic Lensing
Domain: fpcomplete.com, Score: 57, Comments: 39
On Reddit: [7] http://goo.gl/JIowk
Original: [8] http://goo.gl/NX1ak
* Haskell for all: mmorph-1.0.0: Monad morphisms
Domain: haskellforall.com, Score: 56, Comments: 18
On Reddit: [9] http://goo.gl/nlHfN
Original: [10] http://goo.gl/6aHZt
* Haskell News
Domain: haskellnews.org, Score: 43, Comments: 12
On Reddit: [11] http://goo.gl/fNzzI
Original: [12] http://goo.gl/4K1tD
* pipes-3.2: ListT, Codensity, ArrowChoice, and performance
Domain: haskellforall.com, Score: 43, Comments: 19
On Reddit: [13] http://goo.gl/a0xm8
Original: [14] http://goo.gl/RFLdw
* Introducing diagrams-haddock
Domain: byorgey.wordpress.com, Score: 41, Comments: 13
On Reddit: [15] http://goo.gl/d5Vl5
Original: [16] http://goo.gl/PmUFs
* Optimising Purely Functional GPU Programs
Domain: justtesting.org, Score: 41, Comments: 2
On Reddit: [17] http://goo.gl/ZgiXt
Original: [18] http://goo.gl/M5fop
* Creating board games in Haskell in 100 lines of code
Domain: keera.co.uk, Score: 38, Comments: 30
On Reddit: [19] http://goo.gl/lbZke
Original: [20] http://goo.gl/epwqQ
* What is the logarithm or root operation in type-space? (x-post from
r/compsci)
Domain: cstheory.stackexchange.com, Score: 38, Comments: 17
On Reddit: [21] http://goo.gl/1z3a9
Original: [22] http://goo.gl/JXAlC
* New GHC Extension - Nullary Type Classes (apparently not an April
Fool's joke)
Domain: hackage.haskell.org, Score: 37, Comments: 24
On Reddit: [23] http://goo.gl/rD5KC
Original: [24] http://goo.gl/drfb7
* The Monad.Reader issue 21
Domain: themonadreader.files.wordpress.com, Score: 30, Comments: 2
On Reddit: [25] http://goo.gl/R1dke
Original: [26] http://goo.gl/nGHjP
* Dependently Typed Functional Programming with Idris 4 (last lecture)
Domain: vimeo.com, Score: 28, Comments: 4
On Reddit: [27] http://goo.gl/ozbtK
Original: [28] http://goo.gl/2xsaB
* Conal Elliot: Folds and Unfolds
Domain: conal.net, Score: 28, Comments: 5
On Reddit: [29] http://goo.gl/ZzFZ1
Original: [30] http://goo.gl/JVQK4
* Mihai-Radu Popescu's book in progress: "Speeding Through Haskell"
Domain: sthaskell.com, Score: 26, Comments: 15
On Reddit: [31] http://goo.gl/d1wZF
Original: [32] http://goo.gl/oB0e8
* hchip - a Haskell emulator for Chip16
Domain: self.haskell, Score: 25, Comments: 1
On Reddit: [33] http://goo.gl/mtHhg
Original: [34] http://goo.gl/mtHhg
* Introduction to Haskell, Lecture 8 is Live (Monads)
Domain: shuklan.com, Score: 25, Comments: 22
On Reddit: [35] http://goo.gl/nCV1q
Original: [36] http://goo.gl/D4VGn
* School of Haskell: Learning Haskell Through Koans
Domain: fpcomplete.com, Score: 22, Comments: 2
On Reddit: [37] http://goo.gl/sKxmz
Original: [38] http://goo.gl/2n9aF
* Arrow Notation in Functional Reactive Programming demonstrated with a
simple OpenGL demo (Yampa)
Domain: youtube.com, Score: 22, Comments: 9
On Reddit: [39] http://goo.gl/NN8nr
Original: [40] http://goo.gl/m5XEb
Top StackOverflow Questions
* Maintaining complex state in Haskell
votes: 23, answers: 1
Read on SO: [41] http://goo.gl/XbFtx
* Is using mapM/sequence considered good practice?
votes: 14, answers: 3
Read on SO: [42] http://goo.gl/juA3q
* Can I model a list of successes with short circuiting failure via the
composition of applicative functors?
votes: 12, answers: 2
Read on SO: [43] http://goo.gl/biKxw
* Understanding Polytypes in Hindley-Milner Type Inference
votes: 12, answers: 2
Read on SO: [44] http://goo.gl/sjzJJ
* Why add “Eq” type constraint without using “==”?
votes: 11, answers: 1
Read on SO: [45] http://goo.gl/hljhA
* :: a -> (a -> b) -> b operator (Haskell)
votes: 11, answers: 3
Read on SO: [46] http://goo.gl/O643o
* What's the most efficient way to represent finite (non-recursive)
algebraic type values?
votes: 10, answers: 2
Read on SO: [47] http://goo.gl/ikN78
* What's the “easier way” that deprecates the need for
Data.Conduit.Util's zip?
votes: 10, answers: 1
Read on SO: [48] http://goo.gl/kk6jq
* Haskell equivalent of scala collect
votes: 10, answers: 1
Read on SO: [49] http://goo.gl/wjKTR
* Scheduling a Timeout in Haskell
votes: 10, answers: 1
Read on SO: [50] http://goo.gl/Pya8z
Until next time,
+Daniel Santa Cruz
References
1.
http://www.serpentine.com/blog/2013/03/20/whats-good-for-c-is-good-for-haskell/
2.
http://www.reddit.com/r/haskell/comments/1aok5k/whats_good_for_c_is_good_for_haskell/
3.
http://www.reddit.com/r/haskell/comments/1b4m75/anatomy_of_programming_languages_in_haskell/
4.
http://www.reddit.com/r/haskell/comments/1b4m75/anatomy_of_programming_languages_in_haskell/
5.
https://edwinb.wordpress.com/2013/03/28/programming-and-reasoning-with-algebraic-effects-and-dependent-types/
6.
http://www.reddit.com/r/haskell/comments/1b64xh/programming_and_reasoning_with_algebraic_effects/
7. https://www.fpcomplete.com/user/tel/basic-lensing
8.
http://www.reddit.com/r/haskell/comments/1anf0n/school_of_haskellbasic_lensing/
9. http://www.haskellforall.com/2013/03/mmorph-100-monad-morphisms.html
10.
http://www.reddit.com/r/haskell/comments/1ahyzu/haskell_for_all_mmorph100_monad_morphisms/
11. http://haskellnews.org/
12. http://www.reddit.com/r/haskell/comments/1ahgrn/haskell_news/
13.
http://www.haskellforall.com/2013/03/pipes-32-listt-codensity-arrowchoice.html
14.
http://www.reddit.com/r/haskell/comments/1av2gi/pipes32_listt_codensity_arrowchoice_and/
15. http://byorgey.wordpress.com/2013/03/23/introducing-diagrams-haddock/
16.
http://www.reddit.com/r/haskell/comments/1aw33e/introducing_diagramshaddock/
17. http://justtesting.org/optimising-purely-functional-gpu-programs
18.
http://www.reddit.com/r/haskell/comments/1bapa5/optimising_purely_functional_gpu_programs/
19. http://keera.co.uk/blog/2013/03/19/creating-board-games-in-haskell/
20.
http://www.reddit.com/r/haskell/comments/1ani3n/creating_board_games_in_haskell_in_100_lines_of/
21.
http://cstheory.stackexchange.com/questions/17006/what-is-the-logarithm-or-root-operation-in-type-space
22.
http://www.reddit.com/r/haskell/comments/1aynxj/what_is_the_logarithm_or_root_operation_in/
23. http://hackage.haskell.org/trac/ghc/ticket/7642
24.
http://www.reddit.com/r/haskell/comments/1atlvu/new_ghc_extension_nullary_type_classes_apparently/
25. http://themonadreader.files.wordpress.com/2013/03/issue21.pdf
26.
http://www.reddit.com/r/haskell/comments/1ahrii/the_monadreader_issue_21/
27. http://vimeo.com/62059837
28.
http://www.reddit.com/r/haskell/comments/1aisv0/dependently_typed_functional_programming_with/
29. http://conal.net/talks/folds-and-unfolds.pdf
30.
http://www.reddit.com/r/haskell/comments/1asxuf/conal_elliot_folds_and_unfolds/
31. http://www.sthaskell.com/
32.
http://www.reddit.com/r/haskell/comments/1azvcy/mihairadu_popescus_book_in_progress_speeding/
33.
http://www.reddit.com/r/haskell/comments/1akhgi/hchip_a_haskell_emulator_for_chip16/
34.
http://www.reddit.com/r/haskell/comments/1akhgi/hchip_a_haskell_emulator_for_chip16/
35. http://shuklan.com/haskell/lec09.html
36.
http://www.reddit.com/r/haskell/comments/1alqjq/introduction_to_haskell_lecture_8_is_live_monads/
37. https://www.fpcomplete.com/blog/2013/03/learning-through-koans
38.
http://www.reddit.com/r/haskell/comments/1amuuz/school_of_haskell_learning_haskell_through_koans/
39. http://www.youtube.com/watch?v=T3xXebIr8AM#t=17m58s
40.
http://www.reddit.com/r/haskell/comments/1ao4nx/arrow_notation_in_functional_reactive_programming/
41.
http://stackoverflow.com/questions/15467925/maintaining-complex-state-in-haskell
42.
http://stackoverflow.com/questions/15546216/is-using-mapm-sequence-considered-good-practice
43.
http://stackoverflow.com/questions/15460794/can-i-model-a-list-of-successes-with-short-circuiting-failure-via-the-compositio
44.
http://stackoverflow.com/questions/15497315/understanding-polytypes-in-hindley-milner-type-inference
45.
http://stackoverflow.com/questions/15512541/why-add-eq-type-constraint-without-using
46. http://stackoverflow.com/questions/15604290/a-a-b-b-operator-haskell
47.
http://stackoverflow.com/questions/15572996/whats-the-most-efficient-way-to-represent-finite-non-recursive-algebraic-type
48.
http://stackoverflow.com/questions/15627359/whats-the-easier-way-that-deprecates-the-need-for-data-conduit-utils-zip
49.
http://stackoverflow.com/questions/15634549/haskell-equivalent-of-scala-collect
50.
http://stackoverflow.com/questions/15671328/scheduling-a-timeout-in-haskell
51. https://plus.google.com/105107667630152149014/about
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