Jason Miller   

@_developit

Web DevRel at . Created . Do more with less.

Cambridge, MA
jasonformat.com
Joined September 2008
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  1. Pinned Tweet
    Jan 22

    HTM's preact integration now includes hooks. 4.6kb for VDOM + JSX + hooks with no build step is good value-for-money, IMO.

    and
    15 replies 109 retweets 719 likes
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  2. Retweeted
    13 hours ago

    I might have written a prototype for a truly zero runtime CSS-in-JS library⚡️ - ✅ Extract CSS (like the others duh!) - 🚀 Remove CSS-in-JS function call overhead - 🙌 Leads to way smaller code Essentially it converts styled elements straight up DOM nodes.

    12 replies 21 retweets 224 likes
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  3. 27 minutes ago

    Pickle pizza and pickle hummus are both delicious.

    2 replies 1 like
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  4. Retweeted
    Aug 14

    Unblocking clipboard access by and

    1 reply 8 retweets 28 likes
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  5. Aug 13

    I finally updated to MacOS Catalina, which has the worst external display bugs of any software I've ever encountered. Every morning I have to toggle all the display settings to get them to use their default values.

    12 replies 2 retweets 53 likes
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  6. Retweeted
    Aug 11

    some of you may still not know this 🙁, but urql has an amazing normalized cache! 😍 in this post writes about it, what it is, and how to start using it! 🗂

    8 retweets 39 likes
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  7. Aug 11

    someone should make android notifications easier to swipe away. have to flick them 3+ times

    2 likes
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  8. Aug 11

    In the worst case, this just breaks otherwise valid code - particularly in strict ESM environments. It plays weirdly with both ESM and CJS module resolution. In the best case, the result is that a bunch of empty `.js` files are being imported by module consumers:

    4 replies 15 likes
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  9. Aug 11

    To clarify: by all means, export types using the "types" field in package.json. Just don't import them from your generated *.js files. // package.json { "module": "dist.js" } // dist.js export * from './types.ts'; // what should this do? export const foo = 1;

    5 replies 1 retweet 21 likes
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  10. Aug 11

    PSA: please don't ship TS type exports in your JS modules. It hurts everyone including TypeScript users.

    11 replies 8 retweets 78 likes
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  11. Aug 11

    I can never find a good reference for the "islands" architecture when talking to folks, so wrote about it:

    10 replies 28 retweets 102 likes
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  12. Retweeted
    Aug 10

    Want to learn about the latest trends on web performance? Check out our brand new episode with and

    1 reply 9 retweets 19 likes
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  13. Retweeted
    Aug 8

    Who's excited for our upcoming episode on web performance with and ?

    2 replies 5 retweets 38 likes
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  14. Retweeted
    Aug 8

    Just published a bunch of new prefresh versions! We've added support for: - Refreshing non-exported components - Webpack 5 - Next 9.5 Try it out and give feedback please!

    6 retweets 48 likes
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  15. Retweeted
    Aug 6

    Here's me live-editing a preact material app on glitch. Instant startup and hot module updates, on a machine with slightly less compute power than a potato

    8 replies 21 retweets 199 likes
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  16. Retweeted
    Aug 6

    This week we updated to send a "modern" bundle to newer browsers. This means a ~6% reduction in the amount of code needed to run the site for most users, with just some webpack config tweaks. I wanted to share a little more about how... 1/

    21 replies 173 retweets 955 likes
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  17. Aug 6

    Here's me live-editing a preact material app on glitch. Instant startup and hot module updates, on a machine with slightly less compute power than a potato

    8 replies 21 retweets 199 likes
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  18. Aug 6

    I've been using Twitter's bundles as an example for while, since my reverse compiler was able to reduce them by around 25%. I was actually talking to about it this morning just before Jane's tweet!

    17 likes
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  19. Aug 6

    For those wondering why I've been pushing on modern npm dependencies and optimizing Babel's modern output for the past couple years, here's a real-world illustration:

    Twitter Web App now runs ES6+ for modern browsers*, reducing the polyfill bundle size by 83% (gzipped size went from 16.6 KB down to 2.7 KB!!) * Chrome 79+, Safari 14+, Firefox 68+
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    5 replies 10 retweets 137 likes
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  20. Retweeted
    Aug 6

    Twitter Web App now runs ES6+ for modern browsers*, reducing the polyfill bundle size by 83% (gzipped size went from 16.6 KB down to 2.7 KB!!) * Chrome 79+, Safari 14+, Firefox 68+

    26 replies 307 retweets 2,395 likes
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  21. Retweeted
    Jun 24

    Hey node friends, how do you schedule tasks well across big little core architectures?

    5 replies 1 retweet 3 likes
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