Andrea Giammarchi  

@WebReflection

Web, Mobile, IoT: all JS things since 00's. Formerly JS engineer at , , and - currently - opinions are my own ™

Berlin, Germany
medium.com/@WebReflection
Tilmeldt maj 2009
1.846 billeder og videoer Billeder og videoer

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  1. Fastgjort tweet
    12. aug.

    About WeakMap, WeakSet, WeakRef, and the gorgeous FinalizationRegistry 😍

    2 svar 5 retweets 24 likes
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  2. retweetede
    20. aug.

    If you're interested in learning much more about this effort, Igalia's & Byungwoo Lee will be speaking about it at Ad Blocker Dev Summit 2021 on October 21 along with 's and See you at

    Some update on 's work with :has() in chromium, supported by . As of 94.0.4606.12 (yesterday) in chrome dev channel, the experimental web plaform features runtime flag enables support in JS APIs More details at
    9 retweets 12 likes
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  3. retweetede
    20. aug.

    Any big JS lib using __proto__ these days? I think we could realistically add a warning to Node on usage it is low enough and eventually delete it. Nice because it removes one of the main sources of proto annoyance in security audit tooling.

    10 svar 9 retweets 60 likes
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  4. retweetede
    12. aug.

    About WeakMap, WeakSet, WeakRef, and the gorgeous FinalizationRegistry 😍

    2 svar 5 retweets 24 likes
    Fortryd
  5. 8. aug.

    * all pain points 🤦‍♂️

    1 like
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  6. 8. aug.

    A follow up library based on feedback from ElementObserver is now live, up, and running. It addresses all paint points described in the post, bringing mixins/behaviors via the most natural, and semantic, attribute we have: the class! pretty cool, uh?!

    2 svar 1 retweet 8 likes
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  7. 5. aug.

    "It looks like you don’t have two-factor authentication (2FA) enabled on your npm account. At npm and GitHub, we are working towards securing the software supply chain" welp , I can't publish anything without 2FA, beacuse **it is** active. How's your securing software going?

    2 svar 2 likes
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  8. retweetede
    4. aug.

    just finished over lunch and renamed, 'cause "The Web Components' Mess" felt a bit harsh, but I'll let you judge this story "About Web Components" or, at least, how I see it, after 20 years of Web development.

    4 svar 11 retweets 38 likes
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  9. 4. aug.

    just finished over lunch and renamed, 'cause "The Web Components' Mess" felt a bit harsh, but I'll let you judge this story "About Web Components" or, at least, how I see it, after 20 years of Web development.

    4 svar 11 retweets 38 likes
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  10. 3. aug.

    I'm writing a post entitled: The Web Components' Mess It will provide tons of details, or history, you probably never heard about, so feel free to follow this space to know when it's out 👍

    6 svar 1 retweet 90 likes
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  11. retweetede
    3. aug.

    1. create a component standard 2. oops, it doesn't work without JS 3. create declarative shadow DOM 4. oops, embedding CSS in JS is bad 5. create CSS modules 6. oops, CSS modules don't work with declarative shadow DOM 7. create declarative constructible stylesheets 8. oops, ...

    Questions for those familiar with CSS modules script (the native one): in order for the imported stylesheet to take effect, it needs JavaScript to set adoptedStyleSheets. Does this mean that 1. It won't work without JavaScript (i.e. no JS-less SSR) 2. It can't avoid FOUC?
    15 svar 69 retweets 400 likes
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  12. 3. aug.

    My feelings about SD since about ever … it was more for embedded ads than anything else, and builtin extends have always been superior for real-world use cases, imho.

    I've been using shadow dom for over a year a half, and I still don't see many real world use cases for it. For most situations it introduces more problems than it solves
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    1 svar 2 retweets 8 likes
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  13. 2. aug.

    comments in reviews before anyone asks anything are kinda a nice touch, but unfortunately these instantly break my ability to review code top-down and, eventually, ask questions around stuff that needs clarification. is it just me? 🤔

    2 svar 2 likes
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  14. 1. aug.

    To give a hint regarding how much in scale this BS exists, the same debate is happening in my FB stream because Tamberi, another gold medal, grew up and lived in my hometown since about ever, but he was just born in a different place. A "war" to claim a champion is *not* sport.

    1 svar 2 likes
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  15. 1. aug.

    There are people mad because an Italian that spent the first month of his life in Texas is not technically Italian … that debate is far more important/relevant than celebrating 100m sport and a new European record. This is what sport means these days, and I don’t even

    1 svar 6 likes
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  16. 31. jul.

    I don’t care about, need, or use, TS, but hat tip to all the contributors that land, or help improving, .d.ts files related to my projects. Thank you, you’re awesome 👏

    3 retweets 42 likes
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  17. retweetede
    28. jul.

    JS memory leak tutorials:

    12 svar 142 retweets 926 likes
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  18. 27. jul.

    out of curiosity, as soon as you bought your Apple laptop/working product, have you erased it already to have a case **sensitive** journal in there, like I've always done to date? 🤔

    6 svar 1 like
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  19. 25. jul.

    Almost forgot to mention: no eval/Function needed! The whole logic is based on async/await and namespace/instance crawling. Worker namespace is read-only, and one can await anything in it, including new classes.

    2 likes
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  20. retweetede
    25. jul.

    The FinalizationRegistry API is not strictly related to the WeakRef one. It allows handling remote instances, a worker, through Proxies, w/out leaking memory. My recent proxied-worker module is a successful experiment in this area: lot of potentials 👍

    3 svar 7 retweets 42 likes
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