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propensive's profile
Jon Pretty
Jon Pretty
Jon Pretty
@propensive

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Jon Pretty

@propensive

Supporting Scala through professional training and open-source software. Responsible for Magnolia, Fury, Scala World and Functional Africa.

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propensive.com
Joined July 2010

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    1. etorreborre‏ @etorreborre 27 Sep 2017

      Give your opinion for the inclusion of new #scala collection operations http://bit.ly/2wVIMIy  (https://goo.gl/forms/TWcrH81MoRppvXwN2 …)

      1 reply 17 retweets 11 likes
    2. soc‏ @oxnrtr 27 Sep 2017
      Replying to @etorreborre

      Instead of fixing the performance issues with collections, #Scala decides to just add new methods combining multiple existing ones? Sad.

      1 reply 0 retweets 1 like
    3. Jon Pretty‏ @propensive 27 Sep 2017
      Replying to @oxnrtr @etorreborre

      It's a form delegating that decision to *you*. If you really think performance and new ops are mutually exclusive, say "no" to them all!

      1 reply 0 retweets 1 like
    4. Jon Pretty‏ @propensive 27 Sep 2017
      Replying to @propensive @oxnrtr @etorreborre

      It's also basically impossible to, say, write "intersperse" efficiently by combining other ops. It would be welcome in the new collections.

      4 replies 0 retweets 0 likes
    5. soc‏ @oxnrtr 27 Sep 2017
      Replying to @propensive @etorreborre

      Core problem is that collection operations cannot be efficiently combined. Adding more operations is addressing the symptom, not the issue.

      1 reply 0 retweets 0 likes
    6. Jon Pretty‏ @propensive 27 Sep 2017
      Replying to @oxnrtr @etorreborre

      I think it's orthogonal. With my example of intersperse, it's hard to write the function expressively in source from existing operations.

      2 replies 0 retweets 0 likes
      Jon Pretty‏ @propensive 27 Sep 2017
      Replying to @propensive @oxnrtr @etorreborre

      If the sequences differ in length by 1, then the code is messy. Even if they're the same, my best answer is zip/transpose/flatten. ≠ trivial

      6:18 PM - 27 Sep 2017
      • 1 Like
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      0 replies 0 retweets 1 like

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