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wcrichton's profile
Will Crichton
Will Crichton
Will Crichton
@wcrichton

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Will Crichton

@wcrichton

Articulating the ineffable. Programming language theory 🤝 cognitive psychology. PhD @Stanford

he/him
willcrichton.net
Joined September 2011

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    1. Will Crichton‏ @wcrichton Jun 20

      ??????pic.twitter.com/GQkDrse5OT

      2 replies 2 retweets 21 likes
      Show this thread
    2. Will Crichton‏ @wcrichton Jun 20

      Shout-out to @samth!pic.twitter.com/qUeSzuWozf

      1 reply 2 retweets 16 likes
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    3. Will Crichton‏ @wcrichton Jun 20

      Javascript has probably the most interesting, winding language path of any today. Such a product of intertwined social, economic, and technical factors.

      1 reply 4 retweets 25 likes
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    4. Will Crichton‏ @wcrichton Jun 20

      - Conceived as Scheme - Implemented in 10 days as a Scheme/Java clone baby - But couldn't be too like Java (no classes) - But still needed Java syntax - Initial specification written by MS engineers that reverse-engineered it from Netscape's initial release

      2 replies 2 retweets 23 likes
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    5. Will Crichton‏ @wcrichton Jun 20

      - Turned into a committee language, but no one could agree on it - Rejected version turned into ActionScript - Refined version of ActionScript implemented in SML turned into ES4, also rejected - Progress stopped when MS won 96% browser share w/ IE, until Firefox reignited the war

      1 reply 2 retweets 16 likes
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    6. Will Crichton‏ @wcrichton Jun 20

      - Frustrated users wrote languages to transpile to Javascript, influencing iterations down the line - Insane users transpiled C++ into Javascript, birthing the need for WebAssembly - And Javascript eventually got classes!

      3 replies 1 retweet 14 likes
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    7. Will Crichton‏ @wcrichton Jun 20

      This reminds me of my favorite arc in PL history. C++: we want to be like Simula, but without garbage collection because that's too slow. Java: we want to be like C++, but with garbage collection because that's too scary.pic.twitter.com/lOdBcFueF0

      1 reply 8 retweets 32 likes
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    8. Will Crichton‏ @wcrichton Jun 21

      Cynthia Solomon presents the history of LOGO (of turtle graphics and Mindstorms fame). I love this holistic definition of the "LOGO environment": not just the technology, but also the activities, the language, and the culture.pic.twitter.com/ZL7w2GGNeu

      1 reply 1 retweet 14 likes
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    9. Will Crichton‏ @wcrichton Jun 21

      "In a language for learners, we still believe [dynamic scoping] is the correct choice. If a variable exists, it's visible."

      2 replies 0 retweets 8 likes
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    10. BrendanEich‏Verified account @BrendanEich Jun 21
      Replying to @wcrichton

      Sorry I missed this session, was it about globals only? JS makes globals visible even when dynamically bound (even in strict mode on get; but no creation on set from strict code, exception throw instead), but in strict mode, no ‘with’ or ‘eval’ induced dynamic inner scoping.

      1 reply 0 retweets 0 likes
      Will Crichton‏ @wcrichton Jun 21
      Replying to @BrendanEich

      This was about Logo, not JS -- Twitter thread is stateful so it's a bit confusing to read :-)

      10:00 AM - 21 Jun 2021
      1 reply 0 retweets 0 likes
        1. New conversation
        1. BrendanEich‏Verified account @BrendanEich Jun 21
          Replying to @wcrichton

          I know it’s about Logo but my Logo memory is weak: dynamic scope included nested scopes? A bold dissenting view if so.

          1 reply 0 retweets 0 likes
        2. Will Crichton‏ @wcrichton Jun 21
          Replying to @BrendanEich

          Ah ok -- they didn't specify in the talk, but they cited Lisp as an inspiration so I'm assuming the same model (pervasive dynamic scoping w/ nested scopes).

          1 reply 0 retweets 1 like
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