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Ngnghm's profile
💻🐴Ngnghm
💻🐴Ngnghm
 💻 🐴Ngnghm
@Ngnghm

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 💻 🐴Ngnghm

@Ngnghm

Welcome to the Swiftian World of Houyhnhnm Computing ("Hunam"). I am @fare's software alter ego (but see @phanaero for cryptofoo). Call me "Ann". 🐎Read my blog!

Lair of the French Resistance
ngnghm.github.io
Joined August 2015

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    1. Yaron Minsky‏ @yminsky 13 Jan 2018
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      Replying to @yminsky @samth and

      Both Racket and OCaml work with my kids had largely been supervised. A big part of why this worked out well with my kids is just the time investment...

      1 reply 0 retweets 0 likes
    2. Sam Tobin-Hochstadt‏ @samth 13 Jan 2018
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      Replying to @yminsky @sperbsen @scratch

      I think the big concerns with a typed teaching language are mostly mitigated by supervision: error messages, programming by type-directed random walk. Doesn't really fix getting stuck because of a type error that prevents experimentation, though.

      2 replies 1 retweet 2 likes
    3. Yaron Minsky‏ @yminsky 13 Jan 2018
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      Replying to @samth @sperbsen @scratch

      It's a good question how often that happens, and how much worse it is than the similar problem of getting stuck on a deeply nested runtime exception in a dynamically typed language.

      1 reply 0 retweets 1 like
    4. Sam Tobin-Hochstadt‏ @samth 13 Jan 2018
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      Replying to @yminsky @sperbsen @scratch

      I'd be interested to hear your experience with the two.

      1 reply 0 retweets 0 likes
    5. Yaron Minsky‏ @yminsky 13 Jan 2018
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      Replying to @samth @sperbsen @scratch

      The project that pushed me to try OCaml again was a purely-functional MUD written in Racket. It encouraged a style where you have a "world" type with collections of nested records representing things like rooms, players, items, etc.

      1 reply 0 retweets 1 like
    6. Yaron Minsky‏ @yminsky 13 Jan 2018
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      Replying to @yminsky @samth and

      Building this up iteratively in Racket was torture: whenever you added a new field to a room, you'd have to figure out all the places where that field had to be populated. In OCaml, the red-squiggles just drove you to all the places you needed to fix things.

      1 reply 0 retweets 3 likes
    7. Yaron Minsky‏ @yminsky 13 Jan 2018
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      Replying to @yminsky @samth and

      But in Racket, you were just on your own, scraping through the code trying to figure out where the runtime errors were coming from.

      2 replies 0 retweets 0 likes
    8. Sam Tobin-Hochstadt‏ @samth 13 Jan 2018
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      Replying to @yminsky @sperbsen @scratch

      Really? For missing arguments to constructors, you should get quite a precise error message.

      1 reply 0 retweets 0 likes
    9. Yaron Minsky‏ @yminsky 13 Jan 2018
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      Replying to @samth @sperbsen @scratch

      The red squiggles are so much faster to find and fix! Also, we didn't have an especially good testing story, which meant that you would find the bugs when you played the game, and you never knew when you were done. Frustrating.

      2 replies 0 retweets 0 likes
    10. Sam Tobin-Hochstadt‏ @samth 13 Jan 2018
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      Replying to @yminsky @sperbsen @scratch

      There's no PL feature that can compare to having a good testing story ;)

      1 reply 2 retweets 2 likes
       💻 🐴Ngnghm‏ @Ngnghm 14 Jan 2018
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      Replying to @samth @yminsky and

      What about automatically detecting missing tests from test coverage, automatically suggesting tests to fix the lack of coverage, using induction to find the "simplest" program that fits the tests so far, then to find how it diverges from the current program, etc.

      4:42 PM - 14 Jan 2018
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