Mathias BynensOvjeren akaunt

@mathias

I work on & at Google and on ECMAScript through TC39. ♥ JavaScript, HTML, CSS, HTTP, performance, security, Bash, Unicode, i18n, macOS.

Munich, Germany
mths.be
Vrijeme pridruživanja: siječanj 2007.
331 fotografija ili videozapis Fotografije i videozapisi

Tweetovi

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  1. Prikvačeni tweet
    9. svi 2019.

    At , and I gave a talk on cutting-edge JavaScript features: ➡️ WeakRef ➡️ Intl.* ➡️ Promise.{allSettled,any} ➡️ numeric separators ➡️ Array#{flat,flatMap} ➡️ Object.fromEntries ➡️ String#matchAll ➡️ …and more!

    15 replies 152 proslijeđena tweeta 477 korisnika označava da im se sviđa
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  2. proslijedio/la je Tweet
    prije 14 sati

    Understanding the ECMAScript spec, part 1: In this article, explains how JavaScript built-ins are specified, and how to make sense of the spec text. 🔥

    61 proslijeđeni tweet 177 korisnika označava da im se sviđa
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  3. prije 14 sati

    “ECMAScript EC(MA)splained” by the incredible

    Understanding the ECMAScript spec, part 1: In this article, explains how JavaScript built-ins are specified, and how to make sense of the spec text. 🔥
    1 reply 5 proslijeđenih tweetova 19 korisnika označava da im se sviđa
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  4. 28. sij

    Puppeteer v2.1.0 is out! 🔥 ➡️ Chromium 80 ➡️ puppeteer.launch({product: 'firefox'}) Puppeteer can now talk to a real, unpatched Firefox binary. You no longer need to install puppeteer-firefox separately!

    `puppeteer.launch` now accepts a `product` option which can be set to `'firefox'`.
    14 replies 485 proslijeđenih tweetova 1.751 korisnik označava da mu se sviđa
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  5. 25. sij

    Incredible overview of non-standard web platform features that debuted in Trident, the engine behind good ol’ Internet Explorer: by

    75 proslijeđenih tweetova 131 korisnik označava da mu se sviđa
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  6. proslijedio/la je Tweet
    27. pro 2019.

    All differences between JavaScript modules, classic scripts, and CommonJS. For the next time somebody asks me "why have different file extensions?".

    81 proslijeđeni tweet 284 korisnika označavaju da im se sviđa
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  7. proslijedio/la je Tweet
    24. pro 2019.

    Adaptive icon support in PWAs with maskable icons: . Great article by on making your icons look nice under all circumstances. 🎭 Also a new ⁦⁩ feature. 🎉

    1 reply 34 proslijeđena tweeta 95 korisnika označava da im se sviđa
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  8. proslijedio/la je Tweet
    18. pro 2019.

    V8 hits its long-awaited v8.0, now with optional chaining, nullish coalescing, faster higher-order builtins — oh and 40% less memory use thanks to pointer compression, no big deal. h8rs gonna h8, V8ers gonna V8 🔥🔥🔥

    39 replies 1.089 proslijeđenih tweetova 3.152 korisnika označavaju da im se sviđa
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  9. proslijedio/la je Tweet
    18. pro 2019.

    Tip: Don't set absolute font sizes! If someone has their default browser font size bumped up/down, you override their choice and force them to zoom. 😔 Instead, set the font size to `100%` on the `:root {}` level and make everything a function thereof via `em` or `rem`. 🎉

    Browser preferences page showing the default font size settings section.
    Default font size set to very large, a web page uses the appropriate font size in function of this setting.
    Default font size set to very small, a web page uses the appropriate font size in function of this setting.
    Default font size set to medium regular, a web page uses the appropriate font size in function of this setting.
    6 replies 77 proslijeđenih tweetova 188 korisnika označava da im se sviđa
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  10. proslijedio/la je Tweet
    17. pro 2019.

    🔥 JavaScript regular expressions are getting more powerful! RegExp match objects now have an `indices` array that contains the start and end positions for each capturing group. explains:

    8 replies 168 proslijeđenih tweetova 587 korisnika označava da im se sviđa
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  11. proslijedio/la je Tweet
    17. pro 2019.

    JavaScript is now equipped with a new regular expression enhancement! shows how it can be used for finding positions of matched groups. (This feature is available starting from V8 v7.9 behind a --harmony-regexp-match-indices flag.)

    Screenshot of the getVariablePosition example from the article.
    103 proslijeđena tweeta 287 korisnika označava da im se sviđa
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  12. 17. pro 2019.

    🔥 JavaScript regular expressions are getting more powerful! RegExp match objects now have an `indices` array that contains the start and end positions for each capturing group. explains:

    8 replies 168 proslijeđenih tweetova 587 korisnika označava da im se sviđa
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  13. 17. pro 2019.

    Hͫ̆̒̐ͣ̊̄ͯ͗͏̵̗̻̰̠̬͝ͅE̴̷̬͎̱̘͇͍̾ͦ͊͒͊̓̓̐_̫̠̱̩̭̤͈̑̎̋ͮͩ̒͑̾͋͘Ç̳͕̯̭̱̲̣̠̜͋̍O̴̦̗̯̹̼ͭ̐ͨ̊̈͘͠M̶̝̠̭̭̤̻͓͑̓̊ͣͤ̎͟͠E̢̞̮̹͍̞̳̣ͣͪ͐̈T̡̯̳̭̜̠͕͌̈́̽̿ͤ̿̅̑Ḧ̱̱̺̰̳̹̘̰́̏ͪ̂̽͂̀͠ is a perfectly valid JavaScript identifier.

    i
    13 replies 39 proslijeđenih tweetova 203 korisnika označavaju da im se sviđa
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  14. proslijedio/la je Tweet
    4. pro 2019.

    What’s new in DevTools in Chrome 80? ↳ let and class redeclarations in Console ↳ improvements to WebAssembly debugging, code coverage, Audit & Network panels

    26 proslijeđenih tweetova 82 korisnika označavaju da im se sviđa
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  15. proslijedio/la je Tweet
    23. stu 2019.

    🚀 For large JSON-compatible objects, JSON.parse is faster than JS object literals. ➡️ True for all browser JavaScript engines! ➡️ Speed-ups from 1.2× to 2× 🎥 My lightning talk explains why:

    16 replies 320 proslijeđenih tweetova 968 korisnika označava da im se sviđa
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  16. proslijedio/la je Tweet
    25. stu 2019.

    Here's Mathias' awesome breakdown of the JSON.parse trick for speeding up state transfers. Quick, easy optimization with sometimes dramatic gains. It's faster in all browsers. He mentions my case study, if you're curious, here's my write-up on that:

    🚀 For large JSON-compatible objects, JSON.parse is faster than JS object literals. ➡️ True for all browser JavaScript engines! ➡️ Speed-ups from 1.2× to 2× 🎥 My lightning talk explains why:
    1 reply 18 proslijeđenih tweetova 43 korisnika označavaju da im se sviđa
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  17. 23. stu 2019.

    🚀 For large JSON-compatible objects, JSON.parse is faster than JS object literals. ➡️ True for all browser JavaScript engines! ➡️ Speed-ups from 1.2× to 2× 🎥 My lightning talk explains why:

    16 replies 320 proslijeđenih tweetova 968 korisnika označava da im se sviđa
    Poništi
  18. proslijedio/la je Tweet
    22. stu 2019.

    🌒 Dark mode aficionados, my lightning talk on dark mode has been published on YouTube: . 📺 It's essentially the TL;DR of . 📚

    1 reply 9 proslijeđenih tweetova 40 korisnika označava da im se sviđa
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  19. proslijedio/la je Tweet
    21. stu 2019.

    Call for feedback on new draft UTS #18: Unicode Regular Expressions, adding support for properties of strings (including emoji). Review period closes on 2020-01-06.

    12 proslijeđenih tweetova 22 korisnika označavaju da im se sviđa
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  20. proslijedio/la je Tweet
    21. stu 2019.

    Announcing core Node.js support for ECMAScript modules:

    662 proslijeđena tweeta 1.581 korisnik označava da mu se sviđa
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  21. proslijedio/la je Tweet
    20. stu 2019.

    Emulate `prefers-color-scheme: dark` from DevTools either from the Rendering drawer, or from the Command Menu (Ctrl/Cmd + Shift + P)

    61 proslijeđeni tweet 195 korisnika označava da im se sviđa
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