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wycats's profile
Yehuda Katz 🥨
Yehuda Katz 🥨
Yehuda Katz  🥨
Verified account
@wycats

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Yehuda Katz  🥨Verified account

@wycats

Tilde Co-Founder, OSS enthusiast and world traveler.

Portland, OR
yehudakatz.com
Joined August 2007

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    1. Sebastian Markbåge‏ @sebmarkbage Mar 10

      There's a misunderstanding about stagnating proposals in TC39, that it's because TC39 dislikes a proposal. It's often not the proposal itself but the work of the champion. E.g. not enough research, poor presentation, lack of arguments or it's a topic which requires extra effort.

      4 replies 4 retweets 24 likes
      Show this thread
    2. Matt Apperson‏ @mattapperson Mar 10
      Replying to @sebmarkbage

      Can you provide any inside into TC39’s stance on types in JS? With the popularity TS and Flow are getting, is the issue here the same as you just mentioned? The champion? Or a lack of interest to bring types to JS

      2 replies 0 retweets 0 likes
    3. Sebastian Markbåge‏ @sebmarkbage Mar 10
      Replying to @mattapperson

      The stance is basically to let the space play itself out, outside of standards. That space is huge and very much still in motion. It's not that types can never be added. However, there are arguments for some smaller type hints which could possibly be made by a strong champion.

      3 replies 0 retweets 9 likes
      Yehuda Katz  🥨‏Verified account @wycats Mar 11
      Replying to @sebmarkbage @mattapperson

      In light of TS and Flow both existing and being fairly divergent, I think it's really healthy to let things play out in userspace. I also think it's notable that neither TS nor Flow started out with soundness on any kind of near term roadmap.

      7:46 AM - 11 Mar 2018
      • 3 Likes
      • Adam Rackis Sam Havens Damian Senn
      1 reply 0 retweets 3 likes
        1. New conversation
        2. Yehuda Katz  🥨‏Verified account @wycats Mar 11
          Replying to @wycats @sebmarkbage @mattapperson

          Standardizing an unsound type system is pretty unlikely, because then you have to make a lot of aesthetic choices about which unsoundness you're willing to accept. As a TS user, I think unsound types add a lot of value, but poor fit for standards in that form.

          3 replies 0 retweets 8 likes
        3. Dan Levy‏ @justsml Mar 11
          Replying to @wycats @sebmarkbage @mattapperson

          Type grammer in JS??? Please staahhhhp. Does anything matter anymore? Just because userland did something, and there's a tc39 proposal /w implementation doesn't mean it's a winner. Slow & steady = proven track record. Despite negatives. Fast = political fights & frayed goals.pic.twitter.com/vx7sueA7cx

          1 reply 0 retweets 0 likes
        4. Matt Apperson‏ @mattapperson Mar 11
          Replying to @justsml @wycats @sebmarkbage

          I completely agree. However I don’t think that adding opt-in type grammar is a bad thing, no more so then const and let were

          2 replies 0 retweets 0 likes
        5. Yehuda Katz  🥨‏Verified account @wycats Mar 11
          Replying to @mattapperson @justsml @sebmarkbage

          We would, to start, need TS and Flow to agree on a complete grammar for the type extensions (so they could be reserved correctly), and then we would have to agree we're willing to reserve it.

          1 reply 0 retweets 0 likes
        6. Yehuda Katz  🥨‏Verified account @wycats Mar 11
          Replying to @wycats @mattapperson and

          I don't mean TS and Flow have to agree on the exact syntax, but you can't actually reserve syntax without defining it in the grammar ("the stuff after the colon" doesn't tell you where to stop).

          2 replies 0 retweets 0 likes
        7. Yehuda Katz  🥨‏Verified account @wycats Mar 11
          Replying to @wycats @mattapperson and

          someFunc(): T => U { } call(T => U) call((i: T => U) => i) All valid TS, but not trivial to reserve type syntax in those positions (especially with recursive type definitions).

          1 reply 0 retweets 0 likes
        8. Dan Levy‏ @justsml Mar 11
          Replying to @wycats @mattapperson @sebmarkbage

          Whew. I guess I have nothing to worry about for now if we'll be waiting on agreement between tc39, Flow & TS camps. Don't mind me, I'll show myself out... Back to writing #ReasonML 🤓😁pic.twitter.com/oRr6TzwZv4

          1 reply 0 retweets 1 like
        9. Yehuda Katz  🥨‏Verified account @wycats Mar 11
          Replying to @justsml @mattapperson @sebmarkbage

          😉

          0 replies 0 retweets 0 likes
        10. End of conversation

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