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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. Sebastian‏Verified account @sebmck 3 May 2017
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      Prepack, a partial JavaScript evaluator and optimising compiler we've developed at FB, has just been open sourced! https://prepack.io/ 

      14 replies 472 retweets 760 likes
    2. Jeremiah‏ @Fishrock123 3 May 2017
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      Replying to @sebmck @jlongster

      will this really perform better with e.g. V8 Ignition and TurboFan pipeline?

      1 reply 0 retweets 2 likes
    3. Sebastian‏Verified account @sebmck 3 May 2017
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      Replying to @Fishrock123 @jlongster

      Maybe. It removes code that's executed on startup. No matter how optimised that code is removing it will always be faster.

      1 reply 0 retweets 8 likes
    4. Sebastian‏Verified account @sebmck 3 May 2017
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      Replying to @sebmck @Fishrock123 @jlongster

      Note that Prepack is only applicable (at the moment) to code on the init path. This is more akin to a minifier that removes dead code.

      1 reply 0 retweets 5 likes
    5. Jeremiah‏ @Fishrock123 3 May 2017
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      Replying to @sebmck @jlongster

      what's the plus vs using a minifier?

      1 reply 0 retweets 0 likes
    6. Sebastian‏Verified account @sebmck 3 May 2017
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      Replying to @Fishrock123 @jlongster

      This is literally executing your JavaScript and is backed by an actual ECMA262 interpreter. It can handle very dynamic code.

      3 replies 0 retweets 4 likes
      Sebastian‏Verified account @sebmck 3 May 2017
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      Replying to @sebmck @Fishrock123 @jlongster

      You can see on the homepage some results that a minifier would not be able to produce without having an actual interpreter.

      10:42 AM - 3 May 2017
      • 2 Likes
      • 🇮🇹🇪🇺 Matteo Capucci Kent C. Dodds 🧑‍🚀
      0 replies 0 retweets 2 likes

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