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sebmck's profile
Sebastian
Sebastian
Sebastian
Verified account
@sebmck

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SebastianVerified account

@sebmck

JavaScript boy and “lovely thoughtleader” ⌨️ he/him ♂️

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Joined April 2011

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    1. Vyacheslav Egorov‏ @mraleph 12 Oct 2015
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      node.js: Some quick optimization advicepic.twitter.com/3xhpfQtH9W

      3 replies 22 retweets 34 likes
    2. Vyacheslav Egorov‏ @mraleph 12 Oct 2015
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      Replying to @mraleph

      ... I'd say a far scarier thing from this "optimization advice" post is that for (let x ...) seems to be 3x slower than for (var x ...)

      3 replies 7 retweets 7 likes
    3. φrevor ηorris‏ @trevnorris 12 Oct 2015
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      Replying to @mraleph

      @mraleph There are cases where let generates a large number more instructions than var:https://gist.github.com/trevnorris/73b0d8c0e831d6e48caa …

      1 reply 1 retweet 1 like
    4. Vyacheslav Egorov‏ @mraleph 12 Oct 2015
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      Replying to @trevnorris

      @trevnorris yeah, I already looked at it and was like "how strange is let specified that you have to produce all this dead code?"

      2 replies 1 retweet 0 likes
    5. φrevor ηorris‏ @trevnorris 13 Oct 2015
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      Replying to @mraleph

      @mraleph you mean the majority of that generated code isn't executed?

      1 reply 0 retweets 0 likes
    6. Vyacheslav Egorov‏ @mraleph 13 Oct 2015
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      Replying to @trevnorris

      @trevnorris it's more like "not needed", the code looks like it tests things that are statically known.

      1 reply 0 retweets 0 likes
    7. φrevor ηorris‏ @trevnorris 13 Oct 2015
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      Replying to @mraleph

      @mraleph ah, okay. I've attempted to determine why that occurs when a class is defined, b/c doesn't happen w/o it, and got lost real quick.

      1 reply 0 retweets 0 likes
      Sebastian‏Verified account @sebmck 13 Oct 2015
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      Replying to @trevnorris

      @trevnorris @mraleph It'd likely be for TDZ (which class bindings fall under).

      9:11 AM - 13 Oct 2015
      2 replies 0 retweets 0 likes
        1. New conversation
        1. φrevor ηorris‏ @trevnorris 13 Oct 2015
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          Replying to @sebmck

          @sebmck @mraleph TDZ.... Total Danger Zone?

          2 replies 0 retweets 1 like
        2. Vyacheslav Egorov‏ @mraleph 13 Oct 2015
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          Replying to @trevnorris

          @trevnorris @sebmck also known as 絶対幸運圏 (Zone of Absolute Fortune) in which everyone's desires come true.

          1 reply 0 retweets 3 likes
        3. 2 more replies
        1. Vyacheslav Egorov‏ @mraleph 13 Oct 2015
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          Replying to @sebmck

          @sebmck @trevnorris yeah, my guess too

          0 replies 0 retweets 0 likes
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