Haskell Weekly News: Issue 310

Welcome to issue 310 of the HWN, an issue covering crowd-sourced bits of information about Haskell from around the web. This issue covers from October 5 to 18, 2014

Quotes of the Week

• spopejoy: That [Spineless Tagless G Machine] will always sound like the villian in an upcoming Ghostbusters sequel to me :)
• pigworker: When you can make data out of potatoes, why would you want to encode them as functions?
• fishcorn: When someone mentions lens on freenode... zeus-lens!
• neelk: So constructively we know this style can be used to meet hard performance deadlines in domains where the penalty for failure is literally radioactive flaming death.
• edwardkmett: At one point we had a type in lens where one of its arguments started taking parameters of the form i m a s t a b u. Upon reflection, we let it win the argument and decided not to implement the function.
• Ivan Appel: ... while the popular opinion says that the main reason to pick Haskell is "to have fun hacking," in fact it's not so fun to hack in Haskell because there's not such much hacking to do at the first place. For instance, you don't need to spend lots of effort tracing and fixing obscure bugs, so if your definition of "hacking" includes heroic bugfixing, you'd be better off with JavaScript or Perl.

Top Reddit Stories

• From 60 Frames per Second to 500 in Haskell. From (keera.co.uk), scored 116 with 82 comments.
• Note: Erik Meijer's MOOC - "Introduction to Functional Programming" - starts next Wednesday. From (edx.org), scored 109 with 34 comments.
• The New Haskell.org. From (blog.haskell.org), scored 98 with 72 comments.
• New Haskell Book: Thinking Functionally with Haskell. From (amazon.com), scored 95 with 39 comments.
• Some notes on reimplementing a NodeJS service in Haskell. From (gist.github.com), scored 67 with 5 comments.
• Release of threepenny-gui 0.5.0.0: easy UI in Haskell!. From (apfelmus.nfshost.com), scored 65 with 1 comments.
• Bake: a Continuous Integration System. From (neilmitchell.blogspot.fr), scored 64 with 34 comments.
• On concerns about Haskell's Prelude favoring Foldable/Traversable. From (yesodweb.com), scored 62 with 101 comments.
• Making GHCi awesomer?. From (haskell.org), scored 57 with 3 comments.
• lens over tea, part 1: lenses 101, traversals 101, and some implementation details. From (artyom.me), scored 56 with 25 comments.
• A neat trick for GHCi. From (mega-nerd.com), scored 54 with 12 comments.
• Shaking up GHC. From (blogs.ncl.ac.uk), scored 53 with 21 comments.
• FRP Zoo: the TodoMVC of FRP libraries. From (github.com), scored 53 with 12 comments.
• [Video] Simon Peyton Jones - Zero-Cost Coercions in Haskell - at Haskell eXchange. From (skillsmatter.com), scored 50 with 46 comments.
• Bryan O'Sullivan - Performance Measurement and Optimization in Haskell [video]. From (skillsmatter.com), scored 49 with 23 comments.
• How to Rewrite the Prelude. From (neilmitchell.blogspot.it), scored 42 with 81 comments.
• Generalizing function composition. From (jaspervdj.be), scored 42 with 31 comments.
• C structures in Haskell FFI. From (ghc.haskell.org), scored 40 with 19 comments.
• Yi 0.10, Anniversary Edition. From (haskell.org), scored 38 with 16 comments.
• Curry-Howard, the Ontological Ultimate. From (psnively.github.io), scored 38 with 28 comments.

Top StackOverflow Questions

• Is it possible to directly invoke Haskell code from Bash and output to stdout? votes: 17, answers: 3
• Why does foldr use a helper function? votes: 16, answers: 4
• Why do hGetBuf, hPutBuf, etc. allocate memory? votes: 14, answers: 2
• Is it possible to get the Kind of a Type Constructor in Haskell? votes: 10, answers: 1
• Printing out Haskell's evaluation (rewriting) steps for educational/learning purposes. Is it possible? votes: 9, answers: 3

Until next time,
+Daniel Santa Cruz