[Haskell-cafe] Haskell Weekly News: Issue 247
Daniel Santa Cruz
dstcruz at gmail.com
Thu Oct 11 03:19:08 CEST 2012
Welcome to issue 247 of the HWN, an issue covering crowd-sourced bits
of information about Haskell from around the web. This issue covers the
week of September 30 to October 6, 2012.
Quotes of the Week
* monochrom: 98% of people lack the property that they're members of
the other 2%
* ManuelChakravarty: We used to say, "Learn Haskell, it makes you a
better Java programmer." Now we say, "Learn Agda, it makes you a
better Haskell programmer."
* Cale: data Nature a = Rock a | Stream (Nature a) | Bush (Nature a)
(Nature a)
* rwbarton: type inference is supposed to be the compiler's job, not
the reader's job
* ShelSilverstein: Lazy Lazy Lazy Lazy Lazy Lazy Jane. She wants a
drink of water so she waits and waits and waits and waits and waits
for it to rain.
* Cale: We're up to 950 users which apparently means that any
beginner question is now answered by 4 people.
* YayMe: When I first started playing with haskell I could barely
sleep for 2 days because of how confused it made me
* EvanLaforge: Then we can tell them about how we had to walk in the
snow both ways uphill fighting space leaks with bare hands while
they just have to read about it.
* nand: every time I try arguing semantics, I come to the conclusion
that every word is the exact same thing and refers to anything
* bfig: i have been reborn as a haskell programer after finding
Debug.Trace
Top Reddit Stories
* Factorization diagrams
Domain: mathlesstraveled.com, Score: 82, Comments: 11
On Reddit: [1] http://goo.gl/Jrk0M
Original: [2] http://goo.gl/kXkiV
* The New Cloud Haskell
Domain: well-typed.com, Score: 73, Comments: 21
On Reddit: [3] http://goo.gl/hcRJJ
Original: [4] http://goo.gl/0oWfj
* GHC HEAD now features Agda-like Holes
Domain: hpaste.org, Score: 66, Comments: 43
On Reddit: [5] http://goo.gl/J8bIu
Original: [6] http://goo.gl/297jv
* FizzBuzz Revisited using Monoids
Domain: dave.fayr.am, Score: 55, Comments: 68
On Reddit: [7] http://goo.gl/nqIsE
Original: [8] http://goo.gl/995Zq
* Which advanced Haskell topics interest you? (Survey)
Domain: docs.google.com, Score: 39, Comments: 12
On Reddit: [9] http://goo.gl/Djy63
Original: [10] http://goo.gl/K5pRm
* A fast new SipHash implementation
Domain: serpentine.com, Score: 34, Comments: 8
On Reddit: [11] http://goo.gl/ZGSxD
Original: [12] http://goo.gl/GiD3F
* Communication Patterns in Cloud Haskell (Part 1): master-slave,
work-stealing and work-pushing
Domain: well-typed.com, Score: 33, Comments: 10
On Reddit: [13] http://goo.gl/IRr8s
Original: [14] http://goo.gl/6vUyY
* Category and lenses
Domain: web.jaguarpaw.co.uk, Score: 28, Comments: 2
On Reddit: [15] http://goo.gl/r6Ajl
Original: [16] http://goo.gl/VwtQP
* Yesod Tutorial 1 at FP Complete
Domain: fpcomplete.com, Score: 28, Comments: 15
On Reddit: [17] http://goo.gl/wnUkh
Original: [18] http://goo.gl/kvCMu
* The usual type signatures for foldl and foldr are confusing
Domain: self.haskell, Score: 27, Comments: 63
On Reddit: [19] http://goo.gl/XGHq8
Original: [20] http://goo.gl/XGHq8
* Haskell Symposium 2012 (with youtube links)
Domain: haskell.org, Score: 27, Comments: 1
On Reddit: [21] http://goo.gl/7Dz89
Original: [22] http://goo.gl/I1XXa
* Solving a Partial Differential Equation Comonadically
Domain: idontgetoutmuch.wordpress.com, Score: 27, Comments: 2
On Reddit: [23] http://goo.gl/Qxwjq
Original: [24] http://goo.gl/lBm12
* Need a math related Haskell project suggestion
Domain: self.haskell, Score: 22, Comments: 20
On Reddit: [25] http://goo.gl/o3lYl
Original: [26] http://goo.gl/o3lYl
* Algebraically Interpreting Polymorphism
Domain: stackoverflow.com, Score: 21, Comments: 12
On Reddit: [27] http://goo.gl/3SCA9
Original: [28] http://goo.gl/wC6rm
Top StackOverflow Questions
* Why is seq bad?
votes: 18, answers: 1
Read on SO: [29] http://goo.gl/IwVYS
* Can I speed up this Haskell algorithm?
votes: 18, answers: 3
Read on SO: [30] http://goo.gl/PSVUB
* Is there a library that uses ConstraintKinds to generalize all
the base type classes to allow constraints?
votes: 15, answers: 1
Read on SO: [31] http://goo.gl/MfTMC
* What are skolems?
votes: 15, answers: 2
Read on SO: [32] http://goo.gl/qEnEI
* What does it usually mean when a Haskell record accessor leads
with an underscore?
votes: 14, answers: 3
Read on SO: [33] http://goo.gl/3YD1n
* How does this piece of obfuscated Haskell code work?
votes: 12, answers: 1
Read on SO: [34] http://goo.gl/rLtFG
* How to implement a game loop in reactive-banana?
votes: 12, answers: 1
Read on SO: [35] http://goo.gl/nx3zR
* How do Haskell currying and pattern matching work together?
votes: 9, answers: 1
Read on SO: [36] http://goo.gl/jBCz0
* How does the constraints package work?
votes: 9, answers: 1
Read on SO: [37] http://goo.gl/mb2na
* In haskell, What does :+: mean in data type definition?
votes: 9, answers: 1
Read on SO: [38] http://goo.gl/kv0Yn
* Monad m => a -> [a -> m a] -> m a
votes: 9, answers: 1
Read on SO: [39] http://goo.gl/ns8FG
* How to decorate a Tree in Haskell
votes: 7, answers: 2
Read on SO: [40] http://goo.gl/kBn66
Until next time,
Daniel Santa Cruz
References
1. http://mathlesstraveled.com/2012/10/05/factorization-diagrams/
2. http://www.reddit.com/r/haskell/comments/1117h2/factorization_diagrams/
3. http://www.well-typed.com/blog/70
4. http://www.reddit.com/r/haskell/comments/10y089/the_new_cloud_haskell/
5. http://hpaste.org/75668
6. http://www.reddit.com/r/haskell/comments/10u7xr/ghc_head_now_features_agdalike_holes/
7. http://dave.fayr.am/posts/2012-10-4-finding-fizzbuzz.html
8. http://www.reddit.com/r/haskell/comments/10zlyy/fizzbuzz_revisited_using_monoids/
9. https://docs.google.com/spreadsheet/viewform?formkey=dE1QZFNRLTFMdkllYWIyR2FkYnRzZHc6MQ
10. http://www.reddit.com/r/haskell/comments/10r2yk/which_advanced_haskell_topics_interest_you_survey/
11. http://www.serpentine.com/blog/2012/10/02/a-fast-new-siphash-implementation-in-haskell/
12. http://www.reddit.com/r/haskell/comments/10u381/a_fast_new_siphash_implementation/
13. http://www.well-typed.com/blog/71
14. http://www.reddit.com/r/haskell/comments/10zo6t/communication_patterns_in_cloud_haskell_part_1/
15. http://web.jaguarpaw.co.uk/~tom/blog/2012/09/30/category-and-lenses.html
16. http://www.reddit.com/r/haskell/comments/10ph2c/category_and_lenses/
17. http://fpcomplete.com/yesod-tutorial-1-my-first-web-site/
18. http://www.reddit.com/r/haskell/comments/10seol/yesod_tutorial_1_at_fp_complete/
19. http://www.reddit.com/r/haskell/comments/10q2ls/the_usual_type_signatures_for_foldl_and_foldr_are/
20. http://www.reddit.com/r/haskell/comments/10q2ls/the_usual_type_signatures_for_foldl_and_foldr_are/
21. http://www.haskell.org/haskell-symposium/2012/index.html
22. http://www.reddit.com/r/haskell/comments/10xafx/haskell_symposium_2012_with_youtube_links/
23. http://idontgetoutmuch.wordpress.com/2012/04/01/solving-a-partial-differential-equation-comonadically/
24. http://www.reddit.com/r/haskell/comments/10zy51/solving_a_partial_differential_equation/
25. http://www.reddit.com/r/haskell/comments/10zf9c/need_a_math_related_haskell_project_suggestion/
26. http://www.reddit.com/r/haskell/comments/10zf9c/need_a_math_related_haskell_project_suggestion/
27. http://stackoverflow.com/questions/10453558/algebraically-interpreting-polymorphism/10456993#10456993
28. http://www.reddit.com/r/haskell/comments/10rt4y/algebraically_interpreting_polymorphism/
29. http://stackoverflow.com/questions/12687392/why-is-seq-bad
30. http://stackoverflow.com/questions/12730503/can-i-speed-up-this-haskell-algorithm
31. http://stackoverflow.com/questions/12697348/is-there-a-library-that-uses-constraintkinds-to-generalize-all-the-base-type-cla
32. http://stackoverflow.com/questions/12719435/what-are-skolems
33. http://stackoverflow.com/questions/12746229/what-does-it-usually-mean-when-a-haskell-record-accessor-leads-with-an-underscor
34. http://stackoverflow.com/questions/12659951/how-does-this-piece-of-obfuscated-haskell-code-work
35. http://stackoverflow.com/questions/12685430/how-to-implement-a-game-loop-in-reactive-banana
36. http://stackoverflow.com/questions/12658936/how-do-haskell-currying-and-pattern-matching-work-together
37. http://stackoverflow.com/questions/12728159/how-does-the-constraints-package-work
38. http://stackoverflow.com/questions/12733171/in-haskell-what-does-mean-in-data-type-definition
39. http://stackoverflow.com/questions/12755655/monad-m-a-a-m-a-m-a
40. http://stackoverflow.com/questions/12658443/how-to-decorate-a-tree-in-haskell
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