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mathias's profile
Mathias Bynens
Mathias Bynens
Mathias Bynens
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@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. Andrea Puddu‏ @nuragic 18 Apr 2019
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      Andrea Puddu Retweeted Mathias Bynens

      This is the demonstration that adding globalThis into the spec was a waste of time and worthless IMHO. Best polyfill ever tho.https://twitter.com/mathias/status/1118854141189685249 …

      Andrea Puddu added,

      Mathias BynensVerified account @mathias
      🔥 `globalThis` makes it easy to access the global `this` value in any JavaScript environment. 🤔 Surprisingly, polyfilling it correctly requires some arcane JavaScript wizardry. 🧙‍♀️ A horrifying globalThis polyfill in 100% universal JavaScript: https://mths.be/globalthis  pic.twitter.com/3UNs7KnEzG
      2 replies 0 retweets 12 likes
    2. Mathias Bynens‏Verified account @mathias 19 Apr 2019
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      Replying to @nuragic

      I disagree. The polyfill is complicated enough that there’s value in introducing a simpler mechanism.

      1 reply 0 retweets 0 likes
    3. Andrea Puddu‏ @nuragic 19 Apr 2019
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      Replying to @mathias

      I think so because at some point I was sold by the CSP argument... I mean, they said that it was impossible to do in that context... but now I feel deceived.

      2 replies 0 retweets 0 likes
    4. Andrea Puddu‏ @nuragic 19 Apr 2019
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      Replying to @nuragic @mathias

      Well, thinking about SES now (because it was the main constraint): would this polyfill work there? I suspect it wouldn't

      1 reply 0 retweets 0 likes
      Mathias Bynens‏Verified account @mathias 19 Apr 2019
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      Replying to @nuragic

      It wouldn’t because SES recursively freezes all built-ins and prototypes.

      3:19 AM - 19 Apr 2019
      1 reply 0 retweets 0 likes
        1. New conversation
        2. Andrea Puddu‏ @nuragic 19 Apr 2019
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          Replying to @mathias

          Yeah so I guess it wasn't 100% worthless then... 😌 but I doubt that globalThis would be something that would be left accessible within SES... correct me if I'm wrong

          1 reply 0 retweets 0 likes
        3. Bradley Farias‏ @bradleymeck 19 Apr 2019
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          Replying to @nuragic @mathias

          It could be left accessible, but this is a non-trivial topic. A big reason why it cannot be accessible currently is that the shim being used doesn't allow multiple realms with shared intrinsics to make it different per compartment.

          0 replies 0 retweets 1 like
        4. End of conversation

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