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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. Yehuda Katz  🥨‏Verified account @wycats 10 May 2017
      Replying to @bradleymeck @satya164

      Don't understand.

      1 reply 0 retweets 0 likes
    2. Bradley Farias‏ @bradleymeck 10 May 2017
      Replying to @wycats @satya164

      Saying ESM and CJS differ in ways that are problematic

      1 reply 0 retweets 0 likes
    3. Yehuda Katz  🥨‏Verified account @wycats 10 May 2017
      Replying to @bradleymeck @satya164

      Right, but CJS and script do as well. The .js extension has always been broad. Never implied semantics just "some kind of JS"

      2 replies 0 retweets 0 likes
    4. Yehuda Katz  🥨‏Verified account @wycats 10 May 2017
      Replying to @wycats @bradleymeck @satya164

      The reason node wants .mjs is not a new problem about diff semantics and the meaning of .js. It's about solving a problem Node has.

      3 replies 1 retweet 2 likes
    5. Satyajit Sahoo‏ @satya164 10 May 2017
      Replying to @wycats @bradleymeck

      Is there a 0.1% chance that we could solve the plain js vs modules problem without a special extension and without perf penalties?

      2 replies 0 retweets 0 likes
    6. Bradley Farias‏ @bradleymeck 10 May 2017
      Replying to @satya164 @wycats

      If the grammars didnt collide, probably but this was talked about in Janhttps://github.com/tc39/tc39-notes/blob/master/es7/2017-01/jan-25.md#13iia-proposed-grammar-change-to-es-modules …

      1 reply 1 retweet 3 likes
    7. Yehuda Katz  🥨‏Verified account @wycats 10 May 2017
      Replying to @bradleymeck @satya164

      Rejecting package.json + "use modules" for standalone files isn't on technical grounds. But that's where we're at.

      3 replies 0 retweets 0 likes
    8. Jamund Ferguson‏ @xjamundx 10 May 2017
      Replying to @wycats @bradleymeck @satya164

      What's the actual reason people don't like .mjs? It seems like a really easy solution to a complicated problem!

      2 replies 0 retweets 1 like
    9. Yehuda Katz  🥨‏Verified account @wycats 10 May 2017
      Replying to @xjamundx @bradleymeck @satya164

      Because there are tons of different things that .js means already *including ES modules* and a new extension is unneeded and not free.

      2 replies 1 retweet 6 likes
    10. Jamund Ferguson‏ @xjamundx 10 May 2017
      Replying to @wycats @bradleymeck @satya164

      If you're using TypeScript does this matter at all? You're still tranpiling. It's a config flag. Is there a greater cost than just renaming?

      3 replies 0 retweets 0 likes
      Yehuda Katz  🥨‏Verified account @wycats 10 May 2017
      Replying to @xjamundx @bradleymeck @satya164

      The reason to avoid .mjs is the same reason node itself chose .js initially despite CJS modules != script.

      7:29 PM - 10 May 2017
      • 1 Retweet
      • 1 Like
      • Dan Bucholtz
      3 replies 1 retweet 1 like
        1. New conversation
        2. Bradley Farias‏ @bradleymeck 10 May 2017
          Replying to @wycats @xjamundx @satya164

          Explain

          1 reply 0 retweets 0 likes
        3. Yehuda Katz  🥨‏Verified account @wycats 10 May 2017
          Replying to @bradleymeck @xjamundx @satya164

          .js is widespread and well understood. Hell it's part of Node.js!

          1 reply 0 retweets 1 like
        4. Bradley Farias‏ @bradleymeck 10 May 2017
          Replying to @wycats @xjamundx @satya164

          It isnt well understood, we have been over the fact that it might be Script CJS or ESM. Heck lets throw JScript in there, AMD, or DOJO, ...

          1 reply 0 retweets 0 likes
        5. Yehuda Katz  🥨‏Verified account @wycats 10 May 2017
          Replying to @bradleymeck @xjamundx @satya164

          It's well understood to mean "some kind of JS, look elsewhere for the precise meaning"

          2 replies 0 retweets 0 likes
        6. Bradley Farias‏ @bradleymeck 10 May 2017
          Replying to @wycats @xjamundx @satya164

          Exactly, it is imprecise so not well understood

          1 reply 0 retweets 0 likes
        7. Yehuda Katz  🥨‏Verified account @wycats 10 May 2017
          Replying to @bradleymeck @xjamundx @satya164

          It means "JavaScript content". That's most important for tools like syntax highlighters or simple code search tools.

          1 reply 0 retweets 1 like
        8. Yehuda Katz  🥨‏Verified account @wycats 10 May 2017
          Replying to @wycats @bradleymeck and

          These tools exist in many many places. We can fix popular ones but there's a long tail.

          2 replies 0 retweets 0 likes
        9. Bradley Farias‏ @bradleymeck 10 May 2017
          Replying to @wycats @xjamundx @satya164

          Agree, but those tools arent evaluating code. We can PR safely over time.

          1 reply 0 retweets 0 likes
        10. 4 more replies
        1. New conversation
        2. Yehuda Katz  🥨‏Verified account @wycats 10 May 2017
          Replying to @wycats @xjamundx and

          .js is widespread and already has broad meaning. .mjs is an unnecessary version marker. Again, .js already means script *and* CJS

          2 replies 0 retweets 0 likes
        3. Bradley Farias‏ @bradleymeck 10 May 2017
          Replying to @wycats @xjamundx @satya164

          You say unecessary but I see real benefits to it, and real downsides to other approaches

          1 reply 0 retweets 0 likes
        4. Yehuda Katz  🥨‏Verified account @wycats 10 May 2017
          Replying to @bradleymeck @xjamundx @satya164

          I think we should try to come to agreement on at least the cost accounting here. If not, at least publicize the cost accounting diffs.

          1 reply 0 retweets 1 like
        5. Bradley Farias‏ @bradleymeck 10 May 2017
          Replying to @wycats @xjamundx @satya164

          I would havs to dig through all those threads? What do you seek from this? We are shipping a PR for flagged in next month or so.

          0 replies 0 retweets 1 like
        6. End of conversation
        1. New conversation
        2. Jamund Ferguson‏ @xjamundx 10 May 2017
          Replying to @wycats @bradleymeck @satya164

          Presumably because people would complain? Seems harder now that works uses .jsx and .ts, etc?

          1 reply 0 retweets 0 likes
        3. Yehuda Katz  🥨‏Verified account @wycats 10 May 2017
          Replying to @xjamundx @bradleymeck @satya164

          People are complaining ;) not just e

          1 reply 0 retweets 1 like
        4. Yehuda Katz  🥨‏Verified account @wycats 10 May 2017
          Replying to @wycats @xjamundx and

          Me*

          0 replies 0 retweets 0 likes
        5. End of conversation

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