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slightlylate's profile
Alex Russell
Alex Russell
Alex Russell
@slightlylate

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Alex Russell

@slightlylate

Chrome Project 🐡 & Web Standards TL; Blink API OWNER Named PWAs w/ @phae; probably making her ☕ DMs open. Tweets my own; press@google.com for official comms.

San Francisco, The Internet
infrequently.org
Joined December 2010

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    1. Max Stoiber‏ @mxstbr 21 Aug 2017
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      Replying to @mxstbr @Rich_Harris @tjholowaychuk

      The difference is the selector: .header vs. .Header_dgh465 .header vs. [class^="Header_"]

      2 replies 0 retweets 6 likes
    2. Rich Harris‏Verified account @Rich_Harris 21 Aug 2017
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      Replying to @mxstbr @tjholowaychuk

      right, but that's effort that most people aren't going to go to. No-one at Twitter has 'make Twitter easier to scrape' on their TODO list —

      2 replies 0 retweets 3 likes
    3. Rich Harris‏Verified account @Rich_Harris 21 Aug 2017
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      Replying to @Rich_Harris @mxstbr @tjholowaychuk

      and therein lies the problem. The web used to be friendly to this stuff by default, but modern tooling means it has to be a conscious effort

      6 replies 0 retweets 7 likes
    4. Sébastien Cevey‏ @theefer 21 Aug 2017
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      Replying to @Rich_Harris @mxstbr @tjholowaychuk

      Some Google toolchains rename classes by default because (1) performance (shorter names) & (2) obfuscation are requirements on the todo list

      1 reply 0 retweets 1 like
    5. Sébastien Cevey‏ @theefer 21 Aug 2017
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      Replying to @theefer @Rich_Harris and

      Note that's using "normal css" (or gss/sass), not css-in-js.

      1 reply 0 retweets 1 like
    6. Rich Harris‏Verified account @Rich_Harris 21 Aug 2017
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      Replying to @theefer @mxstbr @tjholowaychuk

      If you're *required* to obfuscate that's a whole 'nother matter. Am sceptical about the perf thing — after gzip, we're probably talking

      1 reply 0 retweets 0 likes
    7. Rich Harris‏Verified account @Rich_Harris 21 Aug 2017
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      Replying to @Rich_Harris @theefer and

      about miniscule byte gains, no? and the length of a class name surely doesn't affect the CSSOM?

      1 reply 0 retweets 0 likes
    8. Sébastien Cevey‏ @theefer 21 Aug 2017
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      Replying to @Rich_Harris @mxstbr @tjholowaychuk

      I'll see if I can compare payloads with renaming vs without, both pre and post gzip.

      2 replies 0 retweets 0 likes
    9. Sébastien Cevey‏ @theefer 21 Aug 2017
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      Replying to @theefer @Rich_Harris and

      Intuitively would expect all class names would need to reside in memory at least once per name, but IANA browser engineer /cc @slightlylate

      1 reply 0 retweets 0 likes
    10. Rich Harris‏Verified account @Rich_Harris 21 Aug 2017
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      Replying to @theefer @mxstbr and

      I mean, unless your classnames alone run into the 100's of Kbs then it seems unlikely to matter... but IAANABE

      1 reply 0 retweets 0 likes
      Alex Russell‏ @slightlylate 22 Aug 2017
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      Replying to @Rich_Harris @theefer and

      Style resolution is a lot of string comparison. Shorter strings == faster comparisons. But what's even faster is local (scoped) styles.

      3:27 AM - 22 Aug 2017
      • 5 Likes
      • Rich Harris Jacob 'KurtXTRM' Groß Nicolás Parada Andy Davies Sébastien Cevey
      1 reply 0 retweets 5 likes
        1. New conversation
        2. Alex Russell‏ @slightlylate 22 Aug 2017
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          Replying to @slightlylate @Rich_Harris and

          So the pro-move is to use Shadow DOM and scope your CSS to your component.

          1 reply 0 retweets 4 likes
        3. 2 more replies

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