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mathias's profile
Mathias Bynens
Mathias Bynens
Mathias Bynens
Verified account
@mathias

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Mathias BynensVerified account

@mathias

I work on @ChromeDevTools & @v8js at Google and on ECMAScript through TC39. ♥ JavaScript, HTML, CSS, HTTP, performance, security, Bash, Unicode, i18n, macOS.

Munich, Germany
mths.be
Joined January 2007

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    1. Jake Archibald‏ @jaffathecake Apr 9
      • Report Tweet
      • Report NetzDG Violation

      Chrome and Safari call this a "resolved" promise, which is true, but kinda misleading…pic.twitter.com/vfRI2Nkxw0

      PromiseStatus: resolved
      8 replies 64 retweets 272 likes
      Show this thread
    2. Jake Archibald‏ @jaffathecake Apr 9
      • Report Tweet
      • Report NetzDG Violation

      In this example, p has been resolved, but it's been resolved with a rejected promise, which makes it reject in-turn.pic.twitter.com/1iR39qoxfJ

      const p = Promise.resolve(
  Promise.reject(new Error('…')),
);
      2 replies 6 retweets 39 likes
      Show this thread
    3. Jake Archibald‏ @jaffathecake Apr 9
      • Report Tweet
      • Report NetzDG Violation

      "Resolve" isn't the opposite of "reject". "Fulfill" is the opposite of "reject". When a promise resolves, it looks at the value its given, and decides what should happen to its state.

      1 reply 8 retweets 58 likes
      Show this thread
    4. Jake Archibald‏ @jaffathecake Apr 9
      • Report Tweet
      • Report NetzDG Violation

      In fact, the ECMAScript spec says the values of [[PromiseState]] can only be "pending", "fulfilled", or "rejected". https://www.ecma-international.org/ecma-262/10.0/index.html#table-59 … Well done to Firefox for getting this right! Here's the issue for V8 https://bugs.chromium.org/p/v8/issues/detail?id=6751 ….pic.twitter.com/Mi16CLubl8

      PromiseState: fulfilled
      6 replies 21 retweets 149 likes
      Show this thread
    5. Haris‏ @harisvsulaiman Apr 9
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      Replying to @jaffathecake

      Isn't this a fundamental bug? Will this break anything on the web?

      1 reply 0 retweets 0 likes
    6. Jake Archibald‏ @jaffathecake Apr 9
      • Report Tweet
      • Report NetzDG Violation
      Replying to @harisvsulaiman

      I can't see how. It's only visible in the console.

      1 reply 0 retweets 2 likes
      Mathias Bynens‏Verified account @mathias Apr 9
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      • Report NetzDG Violation
      Replying to @jaffathecake @harisvsulaiman

      It might break some V8 embedders that rely on the current strings. We'll find out soon enough :)

      5:30 AM - 9 Apr 2020
      • 7 Likes
      • HoHoibin tom byrer Vítězslav Ackermann Ferko Jacky Hu Haris Some(@cλbai) Jake Archibald
      1 reply 0 retweets 7 likes
        1. Thomas Steiner‏ @tomayac Apr 9
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          • Report NetzDG Violation
          Replying to @mathias @jaffathecake @harisvsulaiman

          Workflowhttps://xkcd.com/1172/ 

          0 replies 0 retweets 7 likes
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