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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. Jason Miller  🦊 ⚛‏ @_developit 5 Feb 2019
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      We really, really need to stop transpiling classes. I'm getting screen burn-in for classCallCheck()

      14 replies 6 retweets 131 likes
    2. Pig Fang‏ @g3plane 5 Feb 2019
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      Replying to @_developit

      You can use @Rich_Harris ' buble.

      1 reply 0 retweets 4 likes
    3. Rich Harris‏Verified account @Rich_Harris 5 Feb 2019
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      Replying to @g3plane @_developit

      Or TypeScript, which unlike Bublé is actively maintained 😬 Its classes aren't quite as compact as Bublé's but they're a hell of a lot smaller than Babel's. Of course, the real answer is to have separate modern/legacy builds...

      1 reply 0 retweets 15 likes
    4. Mauro Mandracchia‏ @ideabile 5 Feb 2019
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      Replying to @Rich_Harris @g3plane @_developit

      We’re trying delivering different bundles based on UA. But to be fare combine browserlist + cache invalidation for each browser is not worth

      1 reply 0 retweets 0 likes
    5. shawn swyx wang‏ @swyx 5 Feb 2019
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      Replying to @ideabile @Rich_Harris and

      is there a library that helps deliver modern/legacy bundles based on UA? does legacy mainly mean IE?

      1 reply 0 retweets 0 likes
    6. Norbert de Langen  🇳🇱‏ @NorbertdeLangen 5 Feb 2019
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      Replying to @swyx @ideabile and

      Let me know if you find one?

      1 reply 0 retweets 0 likes
    7. shawn swyx wang‏ @swyx 5 Feb 2019
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      Replying to @NorbertdeLangen @ideabile and

      also i’m reminded by my colleagues that UA sniffing is still a bad idea vs feature detection... 🤷‍♂️https://developer.mozilla.org/en-US/docs/Web/HTTP/Browser_detection_using_the_user_agent …

      1 reply 0 retweets 1 like
    8. Mauro Mandracchia‏ @ideabile 5 Feb 2019
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      Replying to @swyx @NorbertdeLangen and

      Well... the feature detection that you pass to Babel or TS, comes from browserlist which returns browser and v. How you link with ur bundle?

      1 reply 0 retweets 0 likes
    9. Rich Harris‏Verified account @Rich_Harris 5 Feb 2019
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      Replying to @ideabile @swyx and

      couple of options: do the module/nomodule dance, or try to eval something like an async function. Sapper (https://sapper.svelte.technology/ ) does the latter; build with --legacy and it generates an IE-friendly bundle in addition to the modern one, and loads the correct one based on support

      3 replies 1 retweet 20 likes
      Mathias Bynens‏Verified account @mathias 6 Feb 2019
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      Replying to @Rich_Harris @ideabile and

      This is great! Is there documentation on this specifically (other than this tweet)?

      2:27 AM - 6 Feb 2019
      • 2 Likes
      • Osman Cea Mauro Mandracchia
      2 replies 0 retweets 2 likes
        1. Rich Harris‏Verified account @Rich_Harris 6 Feb 2019
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          Replying to @mathias @ideabile and

          I thought there was but it appears to be undocumented 😬

          0 replies 0 retweets 1 like
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        1. Mauro Mandracchia‏ @ideabile 6 Feb 2019
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          Replying to @mathias @Rich_Harris and

          This thread start to have some solutions, maybe @addyosmani has more suggestions regarding this?

          0 replies 0 retweets 0 likes
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