Haskell Weekly News: Issue 213

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Haskell Weekly News: Issue 213

Daniel Santa Cruz
Welcome to issue 213 of the HWN, a newsletter covering quotes, stories,
and questions seen around the net concerning Haskell during the week of
January 22 to 28, 2012.

You can read the HTML version at:

Quotes of the Week

   * monochrom: great way to answer a semantics question by commenting
     on the font ... "what is the semantics of IO?" "the I may be
     narrower than O in some fonts, and same width in some other fonts"
     ... "on very old typewriters, it also denotes the number 10 (ten),
     for those of you looking for a denotation"

   * elliott: |\/|/-\|-|-|=|\||} is my preferred mappend operator

   * merijn: rostayob: I used to be a functional programmer like you,
     but then I took an UML diagram to the knee >.>

   * mauke: monoids are simple
     elliott: And as we all know, monads are basically just monoids!
     monochrom: haskell is basically just ascii

   * O'Keefe: "Elegance is not optional."

   * O'Keefe: "If I don't write it, I won't wrong it."

   * kmc: "monads are like containers, as long as you forget everything
     you know about containers, and treat it as a synonym for 'monad'"

   * Enigmagic: this calls for mfix and some tequila

Top Reddit Stories

   * SPJ : Escape From the Ivory Tower: The Haskell Journey, From 1990 to 2011
     Domain: yow.eventer.com, Score: 67, Comments: 12
     On Reddit: [1] http://goo.gl/JqRUW
     Original: [2] http://goo.gl/9ILW1

   * Make Things Now! - Pragmatic FP With Haskell (slides)
     Domain: code.haskell.org, Score: 44, Comments: 22
     On Reddit: [3] http://goo.gl/WJQnH
     Original: [4] http://goo.gl/UMd9y

   * ANNOUNCE: GHC 7.4.1 Release Candidate 2
     Domain: haskell.org, Score: 37, Comments: 
     On Reddit: [5] http://goo.gl/D9F37
     Original: [6] http://goo.gl/sdD1L

   * Web application that uses UHC to compile Haskell to JavaScript
     Domain: alessandrovermeulen.me, Score: 36, Comments: 13
     On Reddit: [7] http://goo.gl/A3S0k
     Original: [8] http://goo.gl/lyX2K

   * Web app that shows you the changes between releases of 
     packages on hackage
     Domain: hdiff.luite.com, Score: 33, Comments: 4
     On Reddit: [9] http://goo.gl/6ioFh
     Original: [10] http://goo.gl/aZAyc

   * Combining Regions and Iteratees
     Domain: haskell.org, Score: 30, Comments: 10
     On Reddit: [11] http://goo.gl/LEPiQ
     Original: [12] http://goo.gl/k3wpd

   * MonadBaseControl is unsound : Inside 233
     Domain: blog.ezyang.com, Score: 29, Comments: 19
     On Reddit: [13] http://goo.gl/ptCF6
     Original: [14] http://goo.gl/Y5bbh

   * Yesod example: wiki, markdown, chat subsite, event source
     Domain: yesodweb.com, Score: 29, Comments: 1
     On Reddit: [15] http://goo.gl/GyfzS
     Original: [16] http://goo.gl/on96C

   * inner beauty of tree traversals: pre- and post-order
     Domain: blog.moertel.com, Score: 29, Comments: 
     On Reddit: [17] http://goo.gl/6fKzq
     Original: [18] http://goo.gl/NpjrO

   * Seem like there's a boycott of Elsevier going on.
     Domain: thecostofknowledge.com, Score: 29, Comments: 1
     On Reddit: [19] http://goo.gl/2B106
     Original: [20] http://goo.gl/dvxML

   * Unifying Monoids and Monads with Polymorphic Kinds
     Domain: jonmsterling.com, Score: 26, Comments: 29
     On Reddit: [21] http://goo.gl/kTafx
     Original: [22] http://goo.gl/A3IrU

   * Modelling IO: MonadIO and beyond
     Domain: blog.ezyang.com, Score: 26, Comments: 4
     On Reddit: [23] http://goo.gl/gr2M1
     Original: [24] http://goo.gl/0n1a9

Top StackOverflow Questions

   * Is it a good idea to compile a language to C?
     votes: 26, answers: 7
     Read on SO: [25] http://goo.gl/V8sSx

   * Haskell GHC: what is the time complexity of a pattern match
      with N constructors?
     votes: 19, answers: 1
     Read on SO: [26] http://goo.gl/SU0l8

   * What to use instead of a main loop in Haskell?
     votes: 12, answers: 2
     Read on SO: [27] http://goo.gl/iYasz

   * Associated types and container elements
     votes: 12, answers: 2
     Read on SO: [28] http://goo.gl/zBNWU

   * Undefined at the type level
     votes: 12, answers: 1
     Read on SO: [29] http://goo.gl/m9Acn

   * Is there a good reason why `deleteBy` does not have its
     most general type?
     votes: 10, answers: 3
     Read on SO: [30] http://goo.gl/dQDrf

   * Using low bitsize integral types like `Int8` and what they are for
     votes: 9, answers: 2
     Read on SO: [31] http://goo.gl/YaE68

   * How is the ghc runtime support for profiling implemented?
     votes: 9, answers: 2
     Read on SO: [32] http://goo.gl/yz7eC

   * how to achieve “product of two monads” effect?
     votes: 9, answers: 1
     Read on SO: [33] http://goo.gl/pLhVK

   * Combine two monads when neither has a transformer?
     votes: 9, answers: 1
     Read on SO: [34] http://goo.gl/yw8tr

   * Why don't type synonyms permit recursion in Haskell?
     votes: 8, answers: 2
     Read on SO: [35] http://goo.gl/hPzVq

Until next time,
Daniel Santa Cruz


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