James Snell
@jasnell.me
Reposted by James Snell
Spread the word! 📢 The FATE (Fairness, Accountability, Transparency, and Ethics) group at @msftresearch.bsky.social in NYC is hiring interns and postdocs to start in summer 2026! 🎉
Apply by *December 15* for full consideration.
Apply by *December 15* for full consideration.
November 20, 2025 at 8:11 PM
Spread the word! 📢 The FATE (Fairness, Accountability, Transparency, and Ethics) group at @msftresearch.bsky.social in NYC is hiring interns and postdocs to start in summer 2026! 🎉
Apply by *December 15* for full consideration.
Apply by *December 15* for full consideration.
ok so... I'm writing a book. It's called JavaScript In Depth (www.manning.com/books/javasc...) ... the first four chapters are available by Manning.
This has been a difficult project and will continue to be so. The reason is that it isn't a How To book that focuses only on how to use the langauge
This has been a difficult project and will continue to be so. The reason is that it isn't a How To book that focuses only on how to use the langauge
JavaScript in Depth - James M. Snell
Explore the inner workings of the world’s most popular programming language and enjoy the power and control that comes only from deep knowledge! In JavaScript in Depth, JavaScript and Node legend Jame...
www.manning.com
November 20, 2025 at 9:37 PM
ok so... I'm writing a book. It's called JavaScript In Depth (www.manning.com/books/javasc...) ... the first four chapters are available by Manning.
This has been a difficult project and will continue to be so. The reason is that it isn't a How To book that focuses only on how to use the langauge
This has been a difficult project and will continue to be so. The reason is that it isn't a How To book that focuses only on how to use the langauge
The repo for the TypedArray find within tc39 proposal is GitHub.com/tc39/proposa...
GitHub - tc39/proposal-typedarray-findwithin: A proposal for searching for a subsequence within a TypedArray
A proposal for searching for a subsequence within a TypedArray - tc39/proposal-typedarray-findwithin
GitHub.com
November 19, 2025 at 7:05 PM
The repo for the TypedArray find within tc39 proposal is GitHub.com/tc39/proposa...
Here's the proposal repo... Still very light on detail: GitHub.com/tc39/proposa...
TypedArray concatenation (the first part of the presentation) is also great! I even suggested it (-ish) in 2021! 😅 es.discourse.group/t/lazy-array...
Lazy ArrayBuffer concatenation
The bl module in Node.js-land is handy because it provides a way to handle sequences of buffers as if they were a single buffer. It would be helpful to have this at the language level, and be able to ...
es.discourse.group
November 19, 2025 at 4:27 AM
Here's the proposal repo... Still very light on detail: GitHub.com/tc39/proposa...
In case you're curious... blog.cloudflare.com/18-november-...
Cloudflare outage on November 18, 2025
Cloudflare suffered a service outage on November 18, 2025. The outage was triggered by a bug in generation logic for a Bot Management feature file causing many Cloudflare services to be affected.
blog.cloudflare.com
November 18, 2025 at 11:50 PM
In case you're curious... blog.cloudflare.com/18-november-...
Will be happy to see this one advance
ECMAScript excitement 😉
Congrats to @jasnell.me on advancing Typed Array Find Within to Stage 1 at TC39 today 🎉
It aims to provide a native indexOf operations for Typed Arrays.
docs.google.com/presentation...
Congrats to @jasnell.me on advancing Typed Array Find Within to Stage 1 at TC39 today 🎉
It aims to provide a native indexOf operations for Typed Arrays.
docs.google.com/presentation...
November 18, 2025 at 7:01 PM
Will be happy to see this one advance
Lots of details to figure out here but it's about time we had an optimized typed array concatenation in the language.
ECMAScript excitement 😉
Congrats to @jasnell.me on advancing Typed Array Concatenation to Stage 1 at TC39 today 🎉
It aims to improve the performance of this concat operation compared to userland libraries.
Congrats to @jasnell.me on advancing Typed Array Concatenation to Stage 1 at TC39 today 🎉
It aims to improve the performance of this concat operation compared to userland libraries.
![const enc = new TextEncoder();
const u8_1 = enc.encode('hello');
const u8_2 = enc.encode('world');
const u8_3 = Uint8Array.concat([u8_1, u8_2]);](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:w227epg3attqnssfdkx6ex6a/bafkreih3olwqia2py3t6uuc3qed3cldxqhzqvbk424j43twfsecmvzsrua@jpeg)
November 18, 2025 at 6:59 PM
Lots of details to figure out here but it's about time we had an optimized typed array concatenation in the language.
Reposted by James Snell
November 17, 2025 at 11:32 PM
Reposted by James Snell
NEW: Epstein survivors release the most powerful PSA I have ever seen.
Make this go viral so every member of the House of Representatives sees it.
Make this go viral so every member of the House of Representatives sees it.
November 16, 2025 at 11:43 PM
NEW: Epstein survivors release the most powerful PSA I have ever seen.
Make this go viral so every member of the House of Representatives sees it.
Make this go viral so every member of the House of Representatives sees it.
Pretty much says it all.
November 15, 2025 at 12:29 AM
Pretty much says it all.
This is good. Even better if you're able to do it such that they get the credit they deserve.
This is, no joke, my favorite part about consulting. I love finding the engineer (there’s always at least one) who has been trying to say the thing everyone has been ignoring and then getting to make the recommendation they’ve been trying to make and have it actually be listened to
November 11, 2025 at 5:46 PM
This is good. Even better if you're able to do it such that they get the credit they deserve.
Is the bee laden or unladen? And. Critically, it is a European bee or an African bee?
Friday #PhysicsFun! Can you guess the answer to this Figuring Physics question about "TWO BIKES and a BEE"? ow.ly/tCmM50XoFSS #PhysicsTeachers #ITeachPhysics #TPT
November 8, 2025 at 3:57 PM
Is the bee laden or unladen? And. Critically, it is a European bee or an African bee?
So we found another performance regression in V8... specifically in the code for WriteUtf8V2 (the code to write a string out as UTF8)... the fix is in... and get this... it results in a 4000%+ performance increase in one of the benchmarks. Not a typo... 4000% improvement.
November 5, 2025 at 8:33 PM
So we found another performance regression in V8... specifically in the code for WriteUtf8V2 (the code to write a string out as UTF8)... the fix is in... and get this... it results in a 4000%+ performance increase in one of the benchmarks. Not a typo... 4000% improvement.
All build tools are equally evil and terrible.
yeah, I'm one those who still think autotools is the lesser evil compared to cmake. No need to tell me how wrong I am.
November 3, 2025 at 3:36 PM
All build tools are equally evil and terrible.
Look some actual heroes standing up to some masked Nazi asshole idiots pretending to be law enforcement.
The energy we need is this suburban dad standing out in the street -- barefoot with Blackhawks pajama pants on -- screaming at the masked goons to get the fuck out of their neighborhood.
More from the scene
October 26, 2025 at 12:21 AM
Look some actual heroes standing up to some masked Nazi asshole idiots pretending to be law enforcement.
@rafaelgss.dev any chance y'all could update the v8docs.nodesource.com to include 25.x? Pretty please :-)
v8docs
v8docs.nodesource.com
October 21, 2025 at 10:23 PM
@rafaelgss.dev any chance y'all could update the v8docs.nodesource.com to include 25.x? Pretty please :-)
Reposted by James Snell
Hell yes, Pittsburgh. Love Yinz. No Kings.
October 18, 2025 at 8:22 PM
Hell yes, Pittsburgh. Love Yinz. No Kings.
Reposted by James Snell
So proud of my city.
No Kings, Chicago!
No Kings, Chicago!
October 18, 2025 at 8:24 PM
So proud of my city.
No Kings, Chicago!
No Kings, Chicago!
Yet again United Airlines lets me down. Ugh.
October 18, 2025 at 9:12 PM
Yet again United Airlines lets me down. Ugh.
Reposted by James Snell
Unfortunately
History is repeating itself
History is repeating itself
October 17, 2025 at 7:54 PM
Unfortunately
History is repeating itself
History is repeating itself
Reposted by James Snell
Reposted by James Snell
We're celebrating the life of Mikeal, creator of request, forker and reuniter of Node.js, renaissance and family man on November 12.
We received a very generous donation and are now able to make this event completely free.
Looking forward to see all of you! an-event-mikeal-would-have-liked.com
We received a very generous donation and are now able to make this event completely free.
Looking forward to see all of you! an-event-mikeal-would-have-liked.com
An Event Mikeal Would Have Liked
Memorial charity event celebrating Mikeal Rogers' life - November 12, 2025
an-event-mikeal-would-have-liked.com
October 17, 2025 at 3:12 PM
We're celebrating the life of Mikeal, creator of request, forker and reuniter of Node.js, renaissance and family man on November 12.
We received a very generous donation and are now able to make this event completely free.
Looking forward to see all of you! an-event-mikeal-would-have-liked.com
We received a very generous donation and are now able to make this event completely free.
Looking forward to see all of you! an-event-mikeal-would-have-liked.com
When MTG becomes the sole voice of reason on the Republican side, you know they've swan dived completely into Looney Land.
Super super weird to find myself agreeing with several of her recent statements
October 17, 2025 at 10:52 AM
When MTG becomes the sole voice of reason on the Republican side, you know they've swan dived completely into Looney Land.