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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. Nicolas Rinaudo‏ @NicolasRinaudo 13 Nov 2019

      Single letter type variables are mostly a bad idea, except when they have no semantic meaning. Monoid[A] is ok. StateChange[A, B] is not, I prefer StateChange[Before, After]. Now let's watch as my follower count suddenly starts dropping...

      23 replies 13 retweets 157 likes
    2. Tamer Abdulradi‏ @tabdulradi 13 Nov 2019
      Replying to @NicolasRinaudo

      Either[L, R] is a good compromise.

      1 reply 0 retweets 0 likes
    3. Nicolas Rinaudo‏ @NicolasRinaudo 13 Nov 2019
      Replying to @tabdulradi

      So, I'm torn on this. I do exactly that most of the time, but that's out of guilt. I really want to write `Either[Left, Right]` but can't work up the courage to do so...

      2 replies 0 retweets 0 likes
    4. Jon Pretty‏ @propensive 16 Nov 2019
      Replying to @NicolasRinaudo @tabdulradi

      Maybe the reason you're torn is that "left" and "right" look like they have semantic significance, but it's just a decoy. There's almost certainly nothing sinister about anyone's choice for the first type parameter, and you could happily swap them.

      2 replies 0 retweets 0 likes
    5. Ruben Berenguel, PhD‏ @berenguel 16 Nov 2019
      Replying to @propensive @NicolasRinaudo @tabdulradi

      That pun left me speechless

      1 reply 0 retweets 2 likes
      Jon Pretty‏ @propensive 16 Nov 2019
      Replying to @berenguel @NicolasRinaudo @tabdulradi

      It wasn't really intended to be a pun... So I hope using it in a tweet didn't make me look gauche.

      8:00 AM - 16 Nov 2019
      1 reply 0 retweets 0 likes
        1. New conversation
        1. Ruben Berenguel, PhD‏ @berenguel 16 Nov 2019
          Replying to @propensive @NicolasRinaudo @tabdulradi

          Nah, it links well with the subject

          1 reply 0 retweets 1 like
        2. Jon Pretty‏ @propensive 16 Nov 2019
          Replying to @berenguel @NicolasRinaudo @tabdulradi

          😆 Very good.

          1 reply 0 retweets 1 like
        3. Show replies

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