Welcome to issue 242 of the HWN, an issue covering crowd-sourced bits of information about Haskell from around the web. This issue covers the week of August 19 to 25, 2012. Quotes of the Week * srhb: I think that's going into space rather than diving into the deep end. * edwardk: normally i don't bother with little things like "documentation", "benchmarks" and "tests", but I recently discovered that when I do, I get these curious things called "users". * shachaf: "Number of comonads released by edwardk will exceed the number of words in the English language by 2015, experts report." Top Reddit Stories * Hackage2 server ready for testing Domain: haskell.org, Score: 75, Comments: 16 On Reddit: [1] http://goo.gl/WTebL Original: [2] http://goo.gl/dHkGo * Monads In Pictures Domain: newartisans.com, Score: 60, Comments: 24 On Reddit: [3] http://goo.gl/QMfGv Original: [4] http://goo.gl/ycmvx * A new fast and easy to use CSV library Domain: blog.johantibell.com, Score: 53, Comments: 26 On Reddit: [5] http://goo.gl/eRKSm Original: [6] http://goo.gl/uRmfz * duckduckgo.com just became my favorite search engine due to haskell support Domain: self.haskell, Score: 50, Comments: 14 On Reddit: [7] http://goo.gl/1tBCg Original: [8] http://goo.gl/1tBCg * An example on how ridiculously powerful haskells type system is Domain: chrisdone.com, Score: 44, Comments: 61 On Reddit: [9] http://goo.gl/iwJT2 Original: [10] http://goo.gl/NovM7 * Galois Internship Available: Come build high-assurance autonomous vehicles! Domain: corp.galois.com, Score: 43, Comments: 13 On Reddit: [11] http://goo.gl/iJEih Original: [12] http://goo.gl/8ckL4 * Issue 20 « The Monad.Reader Domain: themonadreader.wordpress.com, Score: 34, Comments: 8 On Reddit: [13] http://goo.gl/K5Cc7 Original: [14] http://goo.gl/dBSdK * Functional Game Design: Making Pong in Elm Domain: elm-lang.org, Score: 29, Comments: 11 On Reddit: [15] http://goo.gl/sCdfE Original: [16] http://goo.gl/RL2i1 * Making HaskellDB slightly more type-safe Domain: chrisdone.com, Score: 28, Comments: 3 On Reddit: [17] http://goo.gl/b16v5 Original: [18] http://goo.gl/7v38l * Identifying outdated packages in cabal install plans Domain: byorgey.wordpress.com, Score: 24, Comments: 5 On Reddit: [19] http://goo.gl/4yTrR Original: [20] http://goo.gl/Zjw7b * ghcLiVE project escapes! Domain: ghclive.wordpress.com, Score: 23, Comments: 16 On Reddit: [21] http://goo.gl/IiXaA Original: [22] http://goo.gl/QzUHW * My view on why relational algebra matters Domain: users.utu.fi, Score: 22, Comments: 16 On Reddit: [23] http://goo.gl/byYZW Original: [24] http://goo.gl/3NSmI * ANN basic-prelude 0.3 (now comes with a fully-featured Prelude replacement) Domain: haskell.org, Score: 21, Comments: On Reddit: [25] http://goo.gl/klUAO Original: [26] http://goo.gl/4Ccyv * I just realized that running monads is applying a left monad action Domain: self.haskell, Score: 21, Comments: 53 On Reddit: [27] http://goo.gl/Geus4 Original: [28] http://goo.gl/Geus4 * You can soon play in the cabal sandbox Domain: blog.johantibell.com, Score: 20, Comments: 10 On Reddit: [29] http://goo.gl/QuVo0 Original: [30] http://goo.gl/6Q9a9 * Unordered tuples and type algebra Domain: byorgey.wordpress.com, Score: 18, Comments: 3 On Reddit: [31] http://goo.gl/N8iuz Original: [32] http://goo.gl/8l11g * Haskell-Type-Exts Passed the Final Evaluation Domain: cleantypecheck.wordpress.com, Score: 16, Comments: 3 On Reddit: [33] http://goo.gl/ok7CL Original: [34] http://goo.gl/ttsFb * LambdaJam Conference (from the creator of Strange Loop) -- Coming to Chicago in Summer 2013! Domain: lambdajam.com, Score: 15, Comments: On Reddit: [35] http://goo.gl/ytWNE Original: [36] http://goo.gl/ziyYc * Hello world in SKI combinator calculus Domain: self.haskell, Score: 14, Comments: 16 On Reddit: [37] http://goo.gl/qVDMw Original: [38] http://goo.gl/qVDMw * Is this Monoid instance in the standard library somewhere? Domain: self.haskell, Score: 14, Comments: 7 On Reddit: [39] http://goo.gl/cFHG7 Original: [40] http://goo.gl/cFHG7 * Applicative functors: definition and syntax (a reply) Domain: tomasp.net, Score: 13, Comments: 7 On Reddit: [41] http://goo.gl/4VPKR Original: [42] http://goo.gl/saU2j Top StackOverflow Questions * Lazy Evaluation and Time Complexity votes: 40, answers: 7 Read on SO: [43] http://goo.gl/f9QTO * What is the purpose of Rank2Types? votes: 21, answers: 3 Read on SO: [44] http://goo.gl/XrPHP * “Modern” HList? votes: 16, answers: 1 Read on SO: [45] http://goo.gl/X0LJ4 * Overloading of operators votes: 14, answers: 1 Read on SO: [46] http://goo.gl/1rB0O * When is a composition of catamorphisms a catamorphism? votes: 11, answers: 4 Read on SO: [47] http://goo.gl/x7eBk * Tacit function composition in Haskell votes: 10, answers: 2 Read on SO: [48] http://goo.gl/TIvMN * Haskell pattern matching on GADTs with Data Kinds votes: 9, answers: 1 Read on SO: [49] http://goo.gl/5fgAR * Store polymorphic callbacks in Haskell votes: 8, answers: 1 Read on SO: [50] http://goo.gl/QMOlq * Having trouble understanding Haskell's type system votes: 8, answers: 2 Read on SO: [51] http://goo.gl/n8FfC * Function composition hint votes: 7, answers: 2 Read on SO: [52] http://goo.gl/kvgZj * Comparing speed of Haskell and C for the computation of primes votes: 6, answers: 4 Read on SO: [53] http://goo.gl/gPh02 Until next time, Daniel Santa Cruz References 1. http://www.haskell.org/pipermail/cabal-devel/2012-August/008977.html 2. http://www.reddit.com/r/haskell/comments/yr9t1/hackage2_server_ready_for_tes... 3. http://newartisans.com/2012/08/monads-in-pictures/ 4. http://www.reddit.com/r/haskell/comments/ykmgg/monads_in_pictures/ 5. http://blog.johantibell.com/2012/08/a-new-fast-and-easy-to-use-csv-library.h... 6. http://www.reddit.com/r/haskell/comments/yqh7z/a_new_fast_and_easy_to_use_cs... 7. http://www.reddit.com/r/haskell/comments/yjdkh/duckduckgocom_just_became_my_... 8. http://www.reddit.com/r/haskell/comments/yjdkh/duckduckgocom_just_became_my_... 9. http://chrisdone.com/posts/2010-10-07-haskelldb-and-typeoperator-madness.htm... 10. http://www.reddit.com/r/haskell/comments/yosoe/an_example_on_how_ridiculousl... 11. http://corp.galois.com/blog/2012/8/21/galois-internship-available.html 12. http://www.reddit.com/r/haskell/comments/yl84x/galois_internship_available_c... 13. http://themonadreader.wordpress.com/2012/08/25/issue-20/ 14. http://www.reddit.com/r/haskell/comments/yu9bu/issue_20_the_monadreader/ 15. http://elm-lang.org/blog/games-in-elm/part-0/Making-Pong.html 16. http://www.reddit.com/r/haskell/comments/yp27x/functional_game_design_making... 17. http://chrisdone.com/posts/2012-08-25-haskelldb-more-type-safe.html 18. http://www.reddit.com/r/haskell/comments/ysuvr/making_haskelldb_slightly_mor... 19. http://byorgey.wordpress.com/2012/08/25/identifying-outdated-packages-in-cab... 20. http://www.reddit.com/r/haskell/comments/ytckc/identifying_outdated_packages... 21. http://ghclive.wordpress.com/2012/08/20/ghclive-project-escapes/ 22. http://www.reddit.com/r/haskell/comments/yjtql/ghclive_project_escapes/ 23. http://users.utu.fi/machra/posts/2012-08-23-relalgebra.html 24. http://www.reddit.com/r/haskell/comments/ypdox/my_view_on_why_relational_alg... 25. http://www.haskell.org/pipermail/haskell/2012-August/023477.html 26. http://www.reddit.com/r/haskell/comments/yralu/ann_basicprelude_03_now_comes... 27. http://www.reddit.com/r/haskell/comments/ytovd/i_just_realized_that_running_... 28. http://www.reddit.com/r/haskell/comments/ytovd/i_just_realized_that_running_... 29. http://blog.johantibell.com/2012/08/you-can-soon-play-in-cabal-sandbox.html 30. http://www.reddit.com/r/haskell/comments/ys359/you_can_soon_play_in_the_caba... 31. http://byorgey.wordpress.com/2012/08/24/unordered-tuples-and-type-algebra/ 32. http://www.reddit.com/r/haskell/comments/ysuyr/unordered_tuples_and_type_alg... 33. http://cleantypecheck.wordpress.com/2012/08/24/haskell-type-exts-passed-the-... 34. http://www.reddit.com/r/haskell/comments/yrzcq/haskelltypeexts_passed_the_fi... 35. http://lambdajam.com/ 36. http://www.reddit.com/r/haskell/comments/yprlk/lambdajam_conference_from_the... 37. http://www.reddit.com/r/haskell/comments/ypcu7/hello_world_in_ski_combinator... 38. http://www.reddit.com/r/haskell/comments/ypcu7/hello_world_in_ski_combinator... 39. http://www.reddit.com/r/haskell/comments/yqt89/is_this_monoid_instance_in_th... 40. http://www.reddit.com/r/haskell/comments/yqt89/is_this_monoid_instance_in_th... 41. http://tomasp.net/blog/applicative-functors.aspx 42. http://www.reddit.com/r/haskell/comments/ykto4/applicative_functors_definiti... 43. http://stackoverflow.com/questions/12057658/lazy-evaluation-and-time-complex... 44. http://stackoverflow.com/questions/12031878/what-is-the-purpose-of-rank2type... 45. http://stackoverflow.com/questions/12078792/modern-hlist 46. http://stackoverflow.com/questions/12076475/overloading-of-operators 47. http://stackoverflow.com/questions/12103309/when-is-a-composition-of-catamor... 48. http://stackoverflow.com/questions/12061176/tacit-function-composition-in-ha... 49. http://stackoverflow.com/questions/12067503/haskell-pattern-matching-on-gadt... 50. http://stackoverflow.com/questions/12044490/store-polymorphic-callbacks-in-h... 51. http://stackoverflow.com/questions/12047481/having-trouble-understanding-has... 52. http://stackoverflow.com/questions/12025230/function-composition-hint 53. http://stackoverflow.com/questions/12026668/comparing-speed-of-haskell-and-c...