[Haskell-cafe] Haskell Weekly News: Issue 271
Daniel Santa Cruz
dstcruz at gmail.com
Thu Jun 27 03:34:39 CEST 2013
Welcome to issue 271 of the HWN, an issue covering crowd-sourced bits
of information about Haskell from around the web. This issue covers the
week of June 9 to 11, 2013.
Quotes of the Week
* cmccann: also please note that "malign" remains one of my best
function names ever
* dolio: Peak file descriptors is a myth.
* mami: i think my brain rewired for higher typesystem compatibility
in my sleep
* elliott: it's impure but only depending on the environment! which
is to say it is impure.
* johnw: lens makes one into a mutating ninja
* applicativ: een my language we say Z for one
* DavidJacobs: Code is like poetry; most of it shouldn't have been
written.
* merijn: If I could program with arbitrary real world side effects
I'd use "unsafeStabComputerUser" if someone attempted that
* shachaf: Hackage going down regularly is part of the rustic charm
of Haskell!
* shachaf: JavaScript is the best example of a domain-specific
language. Because of the same-origin policy.
* chrisdone: [on being invited to help with idris development] dude
i've already got 20 yaks lined up waiting to be shaved, don't send
me a whole truck full
* shachaf: edwardk isn't benevolent or malevolent. edwardk is more of
a simple mechanical process tending toward maximal complexity.
* AndrejBauer: When have you ever heard a category theorist say: I
want to prove this diagram commutesâLet's suppose it doesn't.
Top Reddit Stories
* Applicative => Monad is coming.
Domain: haskell.org, Score: 122, Comments: 62
On Reddit: [1] http://goo.gl/JCvQ4
Original: [2] http://goo.gl/fJxeX
* The Homotopy Type Theory Book is now available for free online and in
print at Lulu.com
Domain: homotopytypetheory.org, Score: 86, Comments: 16
On Reddit: [3] http://goo.gl/x8nLW
Original: [4] http://goo.gl/DR9gf
* Three useful monads
Domain: adit.io, Score: 71, Comments: 25
On Reddit: [5] http://goo.gl/WHqPr
Original: [6] http://goo.gl/1r8nC
* Beta sign up for FP Complete new IDE
Domain: fpcomplete.com, Score: 63, Comments: 11
On Reddit: [7] http://goo.gl/RPV0P
Original: [8] http://goo.gl/c03Od
* HLearn implements more with 6 trivial lines of Haskell than Weka
implements with over 100 complex lines of Java
Domain: izbicki.me, Score: 47, Comments: 9
On Reddit: [9] http://goo.gl/EEqwS
Original: [10] http://goo.gl/Ukk4E
* Top secret School of Haskell articles leaked
Domain: self.haskell, Score: 47, Comments: 17
On Reddit: [11] http://goo.gl/zhhYm
Original: [12] http://goo.gl/zhhYm
* F-algebra tutorial
Domain: fpcomplete.com, Score: 41, Comments: 35
On Reddit: [13] http://goo.gl/Ybmbs
Original: [14] http://goo.gl/szfGk
* John Carmack on haskell today.
Domain: self.haskell, Score: 40, Comments: 79
On Reddit: [15] http://goo.gl/8qHkt
Original: [16] http://goo.gl/8qHkt
* Data Flow Fusion with Series Expressions in Haskell
Domain: justtesting.org, Score: 40, Comments: 19
On Reddit: [17] http://goo.gl/ZNeIP
Original: [18] http://goo.gl/JAjjy
* So you still don't understand Hindley-Milner? Part 1
Domain: akgupta.ca, Score: 38, Comments: 0
On Reddit: [19] http://goo.gl/OOk43
Original: [20] http://goo.gl/SZ1Gb
* Ask HN: Any downsides of programming in Haskell?
Domain: news.ycombinator.com, Score: 36, Comments: 104
On Reddit: [21] http://goo.gl/vRuHW
Original: [22] http://goo.gl/fcleS
* FP Complete - Haskell Introduction
Domain: youtube.com, Score: 36, Comments: 12
On Reddit: [23] http://goo.gl/GqgC5
Original: [24] http://goo.gl/KoVYs
* Fix your posture with haskell
Domain: github.com, Score: 35, Comments: 2
On Reddit: [25] http://goo.gl/lznTr
Original: [26] http://goo.gl/x21Ax
* preprint list for ICFP'13 papers (additional links welcome)
Domain: github.com, Score: 34, Comments: 9
On Reddit: [27] http://goo.gl/mZsTn
Original: [28] http://goo.gl/bhbC9
* GHC: now with closed type families
Domain: github.com, Score: 34, Comments: 15
On Reddit: [29] http://goo.gl/JJSSv
Original: [30] http://goo.gl/QlV4s
Top StackOverflow Questions
* How to compare two functions for equivalence, as in (λx.2*x) ==
(λx.x+x)?
votes: 15, answers: 2
Read on SO: [31] http://goo.gl/A6YDd
* Should I use typeclasses or not?
votes: 15, answers: 2
Read on SO: [32] http://goo.gl/EOV1M
* Is there something like `map2 :: (i -> a) -> (i -> b) -> [i] ->
[(a,b)]`?
votes: 11, answers: 2
Read on SO: [33] http://goo.gl/WZyEy
* Why isn't GeneralizedNewtypeDeriving a Safe Haskell?
votes: 11, answers: 1
Read on SO: [34] http://goo.gl/on6Fc
* It's not a monad, but what is it?
votes: 10, answers: 0
Read on SO: [35] http://goo.gl/sm9gR
* Writing efficient iterative loop for ST monad
votes: 10, answers: 0
Read on SO: [36] http://goo.gl/WAAwA
* Getting multiple results from map with “lens”
votes: 10, answers: 2
Read on SO: [37] http://goo.gl/zqX8E
* How to run Frege programs on Android?
votes: 10, answers: 2
Read on SO: [38] http://goo.gl/XlSCN
* Are there problems that can't be solved efficiently without arrays?
[duplicate]
votes: 9, answers: 0
Read on SO: [39] http://goo.gl/Z5j9a
* Haskell: How to organize a group of functions that all take the same
arguments
votes: 9, answers: 4
Read on SO: [40] http://goo.gl/z64H7
Until next time,
[41]+Daniel Santa Cruz
References
1. http://www.haskell.org/haskellwiki/Functor-Applicative-Monad_Proposal
2.
http://www.reddit.com/r/haskell/comments/1gsejt/applicative_monad_is_coming/
3. http://homotopytypetheory.org/book/
4.
http://www.reddit.com/r/haskell/comments/1gr3uw/the_homotopy_type_theory_book_is_now_available/
5. http://adit.io/posts/2013-06-10-three-useful-monads.html
6. http://www.reddit.com/r/haskell/comments/1g3a7e/three_useful_monads/
7. https://www.fpcomplete.com/blog/2013/06/beta-sign-up
8.
http://www.reddit.com/r/haskell/comments/1giy7l/beta_sign_up_for_fp_complete_new_ide/
9. http://izbicki.me/blog/hlearns-code-is-shorter-and-clearer-than-wekas
10.
http://www.reddit.com/r/haskell/comments/1g4v7u/hlearn_implements_more_with_6_trivial_lines_of/
11.
http://www.reddit.com/r/haskell/comments/1g5k80/top_secret_school_of_haskell_articles_leaked/
12.
http://www.reddit.com/r/haskell/comments/1g5k80/top_secret_school_of_haskell_articles_leaked/
13. https://www.fpcomplete.com/user/bartosz/understanding-algebras
14. http://www.reddit.com/r/haskell/comments/1g2g3s/falgebra_tutorial/
15.
http://www.reddit.com/r/haskell/comments/1g1mvx/john_carmack_on_haskell_today/
16.
http://www.reddit.com/r/haskell/comments/1g1mvx/john_carmack_on_haskell_today/
17.
http://justtesting.org/post/53175916852/data-flow-fusion-with-series-expressions-in-haskell
18.
http://www.reddit.com/r/haskell/comments/1gi5m1/data_flow_fusion_with_series_expressions_in/
19.
http://akgupta.ca/blog/2013/05/14/so-you-still-dont-understand-hindley-milner/
20.
http://www.reddit.com/r/haskell/comments/1g0ueo/so_you_still_dont_understand_hindleymilner_part_1/
21. https://news.ycombinator.com/item?id=5893442
22.
http://www.reddit.com/r/haskell/comments/1gknfs/ask_hn_any_downsides_of_programming_in_haskell/
23. https://www.youtube.com/watch?v=Fqi0Xu2Enaw
24.
http://www.reddit.com/r/haskell/comments/1glw2o/fp_complete_haskell_introduction/
25. https://github.com/keera-studios/keera-posture
26.
http://www.reddit.com/r/haskell/comments/1gr044/fix_your_posture_with_haskell/
27. https://github.com/gasche/icfp2013-papers#readme
28.
http://www.reddit.com/r/haskell/comments/1gg2xf/preprint_list_for_icfp13_papers_additional_links/
29.
https://github.com/ghc/ghc/commit/569b26526403df4d88fe2a6d64c7dade09d003ad
30.
http://www.reddit.com/r/haskell/comments/1gu2yl/ghc_now_with_closed_type_families/
31.
http://stackoverflow.com/questions/17045941/how-to-compare-two-functions-for-equivalence-as-in-x-2x-x-xx
32.
http://stackoverflow.com/questions/17100036/should-i-use-typeclasses-or-not
33.
http://stackoverflow.com/questions/17074424/is-there-something-like-map2-i-a-i-b-i-a-b
34.
http://stackoverflow.com/questions/17137111/why-isnt-generalizednewtypederiving-a-safe-haskell
35.
http://stackoverflow.com/questions/17034427/its-not-a-monad-but-what-is-it
36.
http://stackoverflow.com/questions/17126923/writing-efficient-iterative-loop-for-st-monad
37.
http://stackoverflow.com/questions/17144334/getting-multiple-results-from-map-with-lens
38.
http://stackoverflow.com/questions/17222383/how-to-run-frege-programs-on-android
39.
http://stackoverflow.com/questions/17128103/are-there-problems-that-cant-be-solved-efficiently-without-arrays
40.
http://stackoverflow.com/questions/17176829/haskell-how-to-organize-a-group-of-functions-that-all-take-the-same-arguments
41. https://plus.google.com/105107667630152149014/about
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