Jeff Posnick
@jeff.posnick.org
📤 528
📥 1973
📝 63
Doing JS/TS stuff at Bloomberg Engineering.
https://jeffy.info
Some personal news: I'm starting a job tomorrow Bloomberg Engineering. It'll be exciting to work someplace where JavaScript/TypeScript are key to the business. And more importantly, I'll be joining a fantastic group of people.
7 days ago
10
77
2
reposted by
Jeff Posnick
Rob Palmer
8 days ago
ECMAScript excitement 😉 Next week's TC39 meeting has a packed agenda: 🔼 Amount 🔼 Array.prototype.pushAll 🔶 AsyncContext 🔶 Await Dictionary 🔼 Import Bytes 🔶 Intl Era Month Code 🔼 Iterator Chunking 🔶 new Global() 🔼 Non-extensible applies to private 🔼 Promise Adoption 🔼 Promise Predicate 🔶 Temporal
8
92
16
reposted by
Jeff Posnick
Adam Argyle
18 days ago
I've joined
@whiskey.fm
as a permanent show host! I'll be bringing
#CSS
content and overall more dorky nerdery to the pod. Tune in if you're into (web tech news || whiskey || whatnot)
nerdy.dev/www-ep208
loading . . .
Www Ep208 · September 4, 2025
Website for Adam Argyle: Teacher, Speaker, CSSWG member, and creator of Open Props and VisBug.
https://nerdy.dev/www-ep208
9
81
5
reposted by
Jeff Posnick
Rachel Andrew
19 days ago
Between the time we launched the original Learn CSS course on
web.dev
and today, container queries landed in browsers and became Baseline Widely available! It was high time for an update, and we were lucky enough to have the team at OddBird work with us. Enjoy 9 new modules!
web.dev/blog/learn-c...
loading . . .
A refresh of Learn CSS with nine new modules | Blog | web.dev
Our popular Learn CSS course has been updated with new modules covering the latest CSS features.
https://web.dev/blog/learn-css-refresh
0
91
28
reposted by
Jeff Posnick
rich harris
19 days ago
terrific post, to which i'll add a couple of related thoughts. first: a lot of developers, especially juniors, tend to assume that other people's code is better than theirs, and so using a dependency (rather than a snippet) makes their codebase better this is very much not the case
add a skeleton here at some point
7
103
14
reposted by
Jeff Posnick
Bramus
19 days ago
This is slick. “Liquid Glass in the Browser: Refraction with CSS and SVG”
kube.io/blog/liquid-...
loading . . .
Liquid Glass in the Browser: Refraction with CSS and SVG — kube.io
Explore how to recreate Apple's stunning Liquid Glass effect using CSS, SVG Displacement Maps, and refraction calculations.
https://kube.io/blog/liquid-glass-css-svg/
1
45
13
reposted by
Jeff Posnick
Adam Argyle
about 1 month ago
gradient.style
has finally - come out of beta - offers multiple background editing - is open source 🎉
nerdy.dev/gradient.sty...
12
287
71
reposted by
Jeff Posnick
Rob Palmer
about 1 month ago
TypeScript excitement 😉 TS 6.0 is planning a bunch of breaking changes to tsconfig options to deprecate some and change the defaults for others. This will simplify configuration and ease the transition to the Go-based TS 7.0 👍 The latest pitch is to enable strict type-checking modes by default 🎉
add a skeleton here at some point
6
120
22
reposted by
Jeff Posnick
Sheryl Posnick
about 1 month ago
Galavanting around NYC for a Zcavenger Hunt? Don't mind if we do!
0
8
2
reposted by
Jeff Posnick
MDN Web Docs
about 1 month ago
MDN just got a glow-up! 🌟 We’ve completely rebuilt our front end, redesigned, reengineered, and ready to help you find what you need. ✨ New search ✨ Improved typography & code rendering ✨ Sleeker nav & icons Read more 👇
developer.mozilla.org/en-US/blog/...
loading . . .
Launching MDN's new front end | MDN Blog
MDN is getting a facelift 🎉 Discover what's changed, what's improved, and how navigating the site just got smoother.
https://developer.mozilla.org/en-US/blog/launching-new-front-end/
6
93
20
reposted by
Jeff Posnick
Anil Dash
about 1 month ago
This is one I've been thinking about for a long time, and I do hope you'll read it, and share it. The stakes have never been higher, but it'ss never been clearer:
@zohrankmamdani.bsky.social
is exactly what NYC's entrepreneurial community needs.
www.anildash.com/2025/08/20/z...
loading . . .
Zohran Mamdani is the leader NYC needs for innovation and entrepreneurship - Anil Dash
A blog about making culture. Since 1999.
https://www.anildash.com/2025/08/20/zohran_mamdani_is_the_nyc_innovation_leader/
2
382
81
walton goggins cobie smulders tyler childers
about 1 month ago
0
0
0
reposted by
Jeff Posnick
Boshen
about 1 month ago
Announcing Oxlint Type-Aware Preview
oxc.rs/blog/2025-08...
loading . . .
The JavaScript Oxidation Compiler
A collection of high-performance JavaScript tools written in Rust
https://oxc.rs/blog/2025-08-17-oxlint-type-aware.html
2
145
25
reposted by
Jeff Posnick
Alex Russell
2 months ago
I spent hours and hours trawling through the sites of some of the world's best web developers, and despite the horrors I regularly experience in my daily work in Big JavaScript Territory, what I saw left me hopeful:
infrequently.org/2025/07/links/
loading . . .
Links? Links! - Infrequently Noted
Alex Russell on browsers, standards, and the process of progress.
https://infrequently.org/2025/07/links/
6
82
23
I have some questions about the capital structure of The Bear.
3 months ago
0
4
0
reposted by
Jeff Posnick
Ashley Willis-McNamara
5 months ago
I did it. I blogged again! This time, I wrote about what Developer Advocacy looks like in 2025.
loading . . .
Ashley Willis – ashley.dev
Developer advocate, open source champion, and maker of things.
https://ashley.dev/posts/what-is-developer-advocacy/
29
373
92
reposted by
Jeff Posnick
Addy Osmani
9 months ago
Tip: Chrome DevTools can override the content of Fetch/XHR requests! Useful for mocking APIs without waiting on backend changes.
loading . . .
9
274
46
reposted by
Jeff Posnick
Aaron Rupar
11 months ago
the legend Michael Stipe performs "Driver 8" at a Harris/Walz event in Georgia
loading . . .
Aaron Rupar (@aaron.rupar) on Threads
the legend Michael Stipe performs "Driver 8" at a Harris/Walz event in Georgia
https://www.threads.net/@aaron.rupar/post/DB7MxMUgvxz
11
373
59
reposted by
Jeff Posnick
emma zhou
11 months ago
does everybody know about my favorite website, the embroidery tips page that forgot to close its <h3> tags
loading . . .
Embroidery Trouble Shooting Page
Embroidery Trouble Shooting Answers to all your questions about Embroidery problems
https://web.archive.org/web/20140310190221/http://www.sewingandembroiderywarehouse.com/embtrb.htm
346
8019
3903
reposted by
Jeff Posnick
Arpit Gupta
12 months ago
@lostsubways.com
has a good plan for future NYC subway expansion: - Extend the N/W trains to LaGuardia Airport - Integrate PATH with subway and extend to Newark Airport - Through-service for Metro-North, LIRR, and NJ Transit at Penn Station.
www.vitalcitynyc.org/articles/exp...
loading . . .
Vital City | What the System Could Become: A 2125 Map
Expand the reach of the subways by meeting riders where they are.
https://www.vitalcitynyc.org/articles/expand-the-reach-of-the-subway-system-a-2125-map
2
39
9
reposted by
Jeff Posnick
Adam Argyle
about 1 year ago
what's missing from Chrome DevTools? let's make a tasty list of features and goodies that would make our lives easier, and I'll aggregate it and bring it to the mother ship for 2025 potential work.
21
109
23
reposted by
Jeff Posnick
Adam Argyle
about 1 year ago
no pain syntax highlighting‽ - no JS - no markup transformation or tokenization how? via Colr Fonts 💪 try it!
codepen.io/argyleink/pe...
1
8
2
reposted by
Jeff Posnick
Andrew Blum
about 1 year ago
This goes hard.
19
2509
669
reposted by
Jeff Posnick
A.R. Moxon
about 1 year ago
LOST is streaming on Netflix—an excellent time to revisit the show, using the viewing guide I'm publishing in my newsletter (link in thread). Many think the story isn't coherent. I think it was. If you want to know why, read on:
www.the-reframe.com/lost-001-obs...
loading . . .
LOST 001: Observation vs. Belief
We’ve got to go back, Kate! We’ve got to go back! Unpacking the TV show LOST —Part 1
https://www.the-reframe.com/lost-001-observation-vs-belief/
10
57
13
reposted by
Jeff Posnick
Joshua J. Friedman
over 1 year ago
"In January, as we covered an active criminal investigation into the alleged chemical spraying of pro-Palestinian protesters, University officials demanded we hand over Spectator’s photos and videos and intimidated journalists by telling us the NYPD was going to subpoena our organization."
loading . . .
Letter from the Editors: Columbia enabled the NYPD to suppress free press as it brutalized our peers
<i>Editor’s note: This article deals with topics of police brutality.</i>
https://www.columbiaspectator.com/opinion/2024/05/04/letter-from-the-editors-columbia-enabled-the-nypd-to-suppress-free-press-as-it-brutalized-our-peers/
9
647
377
reposted by
Jeff Posnick
Joseph Howley
over 1 year ago
A powerful and damning account of Columbia leadership’s failures this year from the undergraduate Student Council of Columbia College. This is basically exactly how I would tell it too
www.theguardian.com/commentisfre...
loading . . .
We Columbia University students urge you to listen to our voices | Columbia College Student Council and Columbia Engineering Student Council
Please, listen to us – not political figures, radical fringes and misguided media
https://www.theguardian.com/commentisfree/article/2024/may/04/columbia-university-student-protest-gaza
2
348
183
reposted by
Jeff Posnick
Megan Greenwell
over 1 year ago
I have gotten a few questions about how to donate to student journalism outlets without supporting Columbia itself. The Columbia Spectator is an independent nonprofit with zero financial ties to the university, if you want to kick them some money.
loading . . .
General Donation — Spectator Publishing Company
http://www.specpublishing.com/donate-1
3
158
111
reposted by
Jeff Posnick
southpaw
over 1 year ago
Columbia’s page regretting its decisions in 1968 bears a banner reflecting some of the decisions it is making now.
news.columbia.edu/content/new-...
12
845
385
reposted by
Jeff Posnick
JW Mason
over 1 year ago
Good for Slate for publishing this interview with two Columbia student newspaper editors. In all the endless discussion of the protests, the voices of actual students have been almost absent.
slate.com/human-intere...
loading . . .
What Is Really Going On at Columbia University? Not What You’ve Been Told.
Are Jews under siege on campus? “I think that's honestly ridiculous,” a prominent Jewish student said.
https://slate.com/human-interest/2024/04/columbia-university-protests-presidents-jewish-students-encampment.html
4
602
238
reposted by
Jeff Posnick
Lydia Polgreen
over 1 year ago
There is so much breathless commentary and speculation about what is happening on Columbia's campus. But we actually have some very good student journalists we can turn to with first hand reporting. I suggest everyone check it out.
columbiaspectator.com
loading . . .
Homepage - Columbia Daily Spectator
https://columbiaspectator.com
2
219
96
reposted by
Jeff Posnick
Megan Greenwell
over 1 year ago
I'm the chair of the Spectator's board of trustees, and I cannot tell you how proud I am to see what they're doing while *also taking finals.* Volunteer your time to help young people in your industry; I can guarantee they'll impress you.
add a skeleton here at some point
3
359
76
reposted by
Jeff Posnick
whet moser
over 1 year ago
they were drinkin’ from a fountain / that was pourin’ like an avalanche / comin’ down a mountain
46
1751
392
reposted by
Jeff Posnick
Adam Lauretig
over 1 year ago
It me
40
2267
802
reposted by
Jeff Posnick
ArtButMakeItSports
over 1 year ago
Rocky Statue (on Halloween 2023 via @6abc), by A. Thomas Schomberg, 1980, 📸 by @KrockPhoto
3
378
49
reposted by
Jeff Posnick
Q. Pheevr
over 1 year ago
Books designed to be read only by human eyes are different from books designed to be read by machines, which is why Google will tell you that the phrase “shake my booty” can be found in an 1863 English translation of Don Quixote.
82
8915
3724
Never Let Me Sow.
loading . . .
Surgeons Transplant Pig Kidney Into a Patient, a Medical Milestone
The man continues to improve, doctors said. Organs from genetically engineered pigs one day may make dialysis obsolete.
https://www.nytimes.com/2024/03/21/health/pig-kidney-organ-transplant.html?unlocked_article_code=1.eU0.DiLN.MCGWJF7rIZT0&ugrp=m
over 1 year ago
0
4
0
reposted by
Jeff Posnick
Anil Dash
over 1 year ago
Just updated: Make Better Documents, a quick guide I wrote up with some tips on how to make your professional documents more effective. It covers many of the most common errors I’ve seen (or that I’ve _done_) and some suggestions on how to address them.
anildash.com/2024/03/10/m...
loading . . .
Make better documents. - Anil Dash
A blog about making culture. Since 1999.
https://anildash.com/2024/03/10/make-better-documents/
4
41
6
reposted by
Jeff Posnick
regular meghan 나영지 🇵🇸
over 1 year ago
the two types of doctor on bluesky
34
3662
860
reposted by
Jeff Posnick
Tom Scocca
over 1 year ago
OK, though, basically the situation is that 20–30 years ago we were ruled by a stultifying center-to-right-wing consensus and now the general public has moved left but also now right-wing extremists feel empowered to express and enact truly unhinged and radical messages and measures
20
692
101
reposted by
Jeff Posnick
Tim Bray
over 1 year ago
In which I mourn Google:
www.tbray.org/ongoing/When...
loading . . .
Mourning Google
https://www.tbray.org/ongoing/When/202x/2024/01/15/Google-2024
1
12
5
reposted by
Jeff Posnick
Death and Gravity
over 1 year ago
Uber: we can't make money if we have to follow the law Google: we can't make money if we're not allowed to be a monopoly Nestle: we can't make money without using slave labor OpenAI: we can't make money if we can't steal media: should shoplifters be executed?
56
11067
4985
reposted by
Jeff Posnick
Molly White
over 1 year ago
Since Bill Ackman and his followers have so many questions about how Wikipedia works now that his wife has been accused of plagiarizing from it, I figured I'd help him out.
www.youtube.com/watch?v=t_jM...
loading . . .
A Wikipedian explains Wikipedia to Bill Ackman
Bill Ackman claims not to know how Wikipedia works after his wife, Neri Oxman, was accused of heavily plagiarizing the site in her PhD dissertation. This com...
https://www.youtube.com/watch?v=t_jM6aoTDK0
16
396
96
reposted by
Jeff Posnick
Curious Iguana
about 2 years ago
I don't think that's true. I think they're just far away
22
2277
624
reposted by
Jeff Posnick
Tim Onion
almost 2 years ago
They’re just gonna Gamergate anybody they don’t like the look of. That’s what’s gonna happen for the next year. They’ll say you’re doing a communism or a DEI and come up with a reason the news likes later. It’ll happen to a lot of people. You’re just gonna have to hope regular people get sick of it.
37
2261
542
hi, website expert here! this is not funny, websites only do this when they're in extreme distress!
add a skeleton here at some point
almost 2 years ago
0
4
0
reposted by
Jeff Posnick
Simon
almost 2 years ago
hi, car expert here! this is not funny, cars only do this when they're in extreme distress!
add a skeleton here at some point
17
655
120
reposted by
Jeff Posnick
Stone Cold Jane Austen
almost 2 years ago
Santa’s Helpers??!! I think you mean Subordinate Clauses
11
556
127
reposted by
Jeff Posnick
captain bleach
almost 2 years ago
spotted a Cybertruck at Starbucks
24
1220
142
reposted by
Jeff Posnick
Ian Betteridge
almost 2 years ago
No. But unions could.
50
5220
1786
Load more
feeds!
log in