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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. Justin Fagnani‏ @justinfagnani 3 Jul 2017
      • Report Tweet
      • Report NetzDG Violation
      Replying to @pemrouz @notwaldorf and

      If the element is meant to run in the DOM, testing in actual DOM seems to be the only safe thing to do.

      1 reply 0 retweets 4 likes
    2. Dan Fabulich‏ @dfabu 4 Jul 2017
      • Report Tweet
      • Report NetzDG Violation
      Replying to @justinfagnani @pemrouz and

      Unit testing React components in non-DOM env is a great way to test logic fast. End-to-end browser tests also important, but perf matters

      1 reply 0 retweets 1 like
    3. Alex Russell‏ @slightlylate 4 Jul 2017
      • Report Tweet
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      Replying to @dfabu @justinfagnani and

      Uhhhhhhhh...how slow is headless chrome on your box, exactly?

      1 reply 0 retweets 0 likes
    4. Dan Fabulich‏ @dfabu 4 Jul 2017
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      Replying to @slightlylate @justinfagnani and

      Slower than virtual DOM.

      1 reply 0 retweets 0 likes
    5. Jake Archibald‏ @jaffathecake 4 Jul 2017
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      Replying to @dfabu @slightlylate and

      There's https://github.com/tmpvar/jsdom  - you just need to be aware you're essentially testing in a different agent.

      2 replies 0 retweets 1 like
    6. Dan Fabulich‏ @dfabu 4 Jul 2017
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      Replying to @jaffathecake @slightlylate and

      We got a big perf boost going from PhantomJS to jsdom, and another big boost going to virtual DOM. jsdom tries to simulate a whole browser.

      1 reply 0 retweets 0 likes
    7. Eric Bidelman‏ @ebidel 4 Jul 2017
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      Replying to @dfabu @jaffathecake and

      Headless Chrome is a perf boost. - phantom2: engine 2yrs+ old, Roughly Safari 8. - jsdom/node8 - V8 v5.8 - Headless Chrome: Blink, V8 v5.9.

      2 replies 0 retweets 4 likes
    8. Domenic Denicola‏ @domenic 5 Jul 2017
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      Replying to @ebidel @dfabu and

      Perf is not strictly determined by JS engine version. E.g. jsdom requires no second process(es). See alsohttps://github.com/tmpvar/jsdom/wiki/jsdom-vs.-PhantomJS …

      1 reply 0 retweets 3 likes
    9. Dan Fabulich‏ @dfabu 5 Jul 2017
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      Replying to @domenic @ebidel and

      IPC ain't free

      1 reply 0 retweets 0 likes
    10. Alex Russell‏ @slightlylate 5 Jul 2017
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      Replying to @dfabu @domenic and

      I literally don't understand what's happening in this thread; perspectives seem lightyears from the engineering tradeoffs I'm used to...

      2 replies 0 retweets 0 likes
      Alex Russell‏ @slightlylate 5 Jul 2017
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      Replying to @slightlylate @dfabu and

      ...so please unsubscribe me and accept my apologies for butting in.

      8:00 AM - 5 Jul 2017
      0 replies 0 retweets 0 likes

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