Chris Callahan @_c_cal
JavaScript, CSS, cat pictures, and 冷笑话. callahan.io New York Joined March 2009-
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Feeding your mind the right questions is super helpful. Sometimes we look for answers but try looking for questions.
Ever read an article that says “setTimeout(..., 0) fires not in 0 ms but in 4”? This is no longer true – at least not in Chrome and Safari, and not since a few months ago. But getting there was a bit of a bumpy road.
Really excellent. I’ve worked on three separate huge apps in Python, rails and node that all benefited massively (10x startup time improvement or more) by these classes of optimizations.
It's here! Speeding up the JS ecosystem - Part 4 🚀 This time we'll take a deep dive into npm scripts and how "npm run" command could be designed to be much faster. Some surprising findings that I didn't expect when I started working on this post! marvinh.dev/blog/speeding-…
@franciscosouza Airtight logic. What could possibly go wrong?
Awesome, awesome read.
Holy shit. How is this the first time I am reading apenwarr.ca/log/20201227 by @apenwarr? It is the best thing I have ever read on systems architecture, design thinking, and maybe engineering levels too. 🤯🔥 On engineers whose systems thinking skills surpass their coding skills:
Two of my most anticipated books of the year just arrived! Going to be some great reading over the holidays.
Where did the knife in the hamburger come from?
I've been dying to share this for weeks now… Introducing the page transition API! It's still in-development, but you can play with it today. I'm really happy with where this API is heading. I hope you like it too! youtube.com/watch?v=JCJUPJ…
@franciscosouza Should be called —no-yeah-compile for extra clarity
Midwest language be like: No Yeah = Yes Yeah no = No Yeah no for sure = Definitely No yeah no = Oh no, you’re fine Yeah no yeah = I’m sorry, but unfortunately, the answer is yes
Does anyone have a good way to remember reference (&) vs dereference (*) operators? I understand the underlying meaning but always need to look up which operator is which.
90% of my job as a senior engineer is giving others the confidence to go with the less-impressive-but-simpler approach.
@franciscosouza Not surprisingly, there’s a pretty solid implementation of recursive Fibonacci in Bash on Stack Overflow: stackoverflow.com/a/22856135
@franciscosouza This has got to be the first recursive bash function I’ve ever seen. Nice.
I really enjoyed this tutorial on Ethereum development from @dabit3. I know little about this space, but I found this to be a super approachable intro to the ecosystem and some popular tools. Would recommend! youtube.com/watch?v=a0osIa…
Yesterday I wrapped up my first week at Facebook! Looking forward to moving fast, learning a ton, and of course doing interesting things with JavaScript.
Brendan O'Kane @bokane
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Spencer Shulem @Spshulem
9K Followers 7K Following @ https://t.co/v9uBX1hXUz - Build at the speed of insight / https://t.co/mfEbTXEBWe - ship 3.7x faster w/ agents. Angel. Prev. Exec @ 🦄 & 🐴 & CEO @ WeDo. Playing @Warcraft.
Kevin julio @Kevintesla0
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Ione @Vwercean5220
196 Followers 7K Following Don’t let anyone dim your light simply because it’s shining in their eyes.
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Beth Kind1g @Beth_Kind1g_
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Daryl Collins @DarylColli40823
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Lenore Reinger @LReinger46751
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Vawwig @Vawwig628332
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Taser @TasernzBP2zH
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Teseigh @TeseighEK6OT
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Greaut @Greautlc49jec
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Stoulstess @StoulstessWPfr
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SusanByron @7ao4w9S8JY7Tnn
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Whouse @Whouse389115
71 Followers 7K Following A strong woman is one who is determined to do what others are determined not to do.
Leighez @LeighezvCh
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ElvaOliver @3r68z7LP82Q6sB
1K Followers 7K Following "是你的就是你的,不是你的抢也要抢到手。 全网最晚封盘时间21:28封盘 这里@l63416w95CJL4R 图片带网址进去要买金币充值钱才能看资料,提前修改资料马后炮中奖说查看战绩,只要关于要钱的都是骗子!"
Totio @TotiouDcrll
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Tewmmim @TewmmimWVhP
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DonnaNelly @Ig9Rw1NW52nz76
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Janot @aT3A4f75klkc8x
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TinaBeerbohm @F5e7zbPQ8r4fh
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ながもとしずな @nagamotosh29563
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きしょうまりな @kishoumari70712
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Tonoysh @TonoyshWBJmD6
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McLeatoo @McLeatoorJ5wmX
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m @kC0padaGL44D1a
96 Followers 7K Following 良い友達になって会うことができますか LINE:https://t.co/29aaHhlliY LINE ID :96448743
SylviaDunbar @3B5q4jg7E8RR5w
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Yimu Technology Indus... @YimuL38995
6 Followers 8 Following Yimu Technology Industry Co. Ltd. is a trading firm specializing in wooden products
SophiaWood @jV1Z6x9n1cMs8
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美香 @0bnCY1AX2ozJH
72 Followers 7K Following 平成元年生まれ、36歳。 まだ独身。だれか貰ってくれる? 私に優しくしてくれる人が好きです😊💕 💼 💎 🌻 🌻 🔥
PollyMoll @9mQCeFm6101TofG
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Teeteigh @Teeteigh194963
88 Followers 7K Following A strong woman is one who is determined to do what others are determined not to do.
Angie Jones @techgirl1908
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Sarah Drasner @sarah_edo
298K Followers 3K Following Opinions my own Area Tech Lead, AI and Web Ecosystem @chrome, Formerly Sr. Director of Core Infra @google • O'Reilly Author • https://t.co/HhzYWwxYAH
Gergely Orosz @GergelyOrosz
340K Followers 3K Following Writing @Pragmatic_Eng, the #1 software engineering newsletter on Substack. Author of @EngGuidebook. Formerly Uber & Skype.
The Mountain Goats @mountain_goats
174K Followers 4K Following reapplying to the University of New Hampshire's PhD program in Rhetoric, Literacy, and Composition Studies
ashley williams @ag_dubs
19K Followers 188 Following a mess like this is easily five to ten years ahead of its time. former @rustlang core team. now i build build systems at @shopify.
Brendan O'Kane @bokane
18K Followers 5K Following Scrutable Occidental, erstwhile 北漂, quondam translator, congenital Philadelphian, 明清小說 enjoyer. Twitter was fun. See you on Bluesky @bokane.org.
Ian Brown @igb
19K Followers 3K Following XML apologist. Erlang enthusiast. Currently JVMs & Performance stuff at @Netflix. Previously JVMs & performative stuff at @Twitter. He/him.
François Chollet @fchollet
701K Followers 826 Following Co-founder @ndea. Co-founder @arcprize. Creator of Keras and ARC-AGI. Author of 'Deep Learning with Python'.
Diane Yap @RealDianeYap
34K Followers 548 Following “most men would rather die than think” — Bertrand Russell
Peter Wang @BrainsAndTennis
11K Followers 52 Following Founding scientist @fundamental co-founder and chief science officer @tryshortcutai
NOBUNAGA🇯🇵🏯_... @japan_nobunaga
274K Followers 0 Following Honest perspectives on Japan — culture, traditions, daily life. 本音で語る日本。守るべき文化と伝統。
The Claude Portfolio @theaiportfolios
247K Followers 16 Following *Not affiliated with Anthropic. A public project to see which LLM outperforms the market. $150M invested alongside Grok, Chat, & Claude on @joinautopilot
Jared Friedman @snowmaker
61K Followers 810 Following founder, techno-optimist, college dropout, partner at @ycombinator.
Erik Hoel @erikphoel
23K Followers 3K Following Placeholder for the scientist and author. Active on Substack not on X. https://t.co/CKyLzw5bHK
Sholto Douglas @_sholtodouglas
47K Followers 2K Following Scaling RL @AnthropicAI, ex @DeepMind - working towards intelligence too cheap to meter
Eric Jang @ericjang11
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MacKenzie Price @mackenzieprice
12K Followers 144 Following Co-founder, Alpha School and 2HrLearning Transforming K12 | Improving outcomes with 1:1 AI-driven academics and critical life skills for a future-ready next gen
Jeffrey Currie 🆔++ @CommodMkt
72K Followers 160 Following Price Theory. Co-Chair, Abaxx Markets. Formerly Goldman, currently Director at Aleph, Borr, Energy Aspects, iPulse and Advisor at Carlyle, U Chicago EPIC.
Aella @Aella_Girl
251K Followers 409 Following whorelord, survey artist, sample size queen, way too earnest. https://t.co/IcEgPhWaSW
Dr Becky Good Inside @GoodInside
16K Followers 11 Following Dr. Becky Kennedy’s groundbreaking approach to raising kids. Turning deep thoughts into actionable strategies you can use right away.
Tom Verrilli @tdrobbo
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The Assembly @InTheAssembly
504K Followers 3 Following Macro analysis, market structure, and the trades nobody else is showing you. REOPENING: JUNE 22
Dylan Patel @dylan522p
139K Followers 1K Following SemiAnalysis Boutique AI Infrastructure Research and Consulting DMs are open for consulting, quotes, or to talk shop, Opinions my own
Soleio @soleio
80K Followers 11K Following Designer, inventor, angel investor. Finding the element that secretly governs the whole. Writing something new. Host of @firstofkind • https://t.co/CQ3aRhF5gk
Russell Kaplan @russelljkaplan
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Jesse Genet @jessegenet
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Chris Tate @ctatedev
61K Followers 2K Following @Vercel Labs | Created https://t.co/473Fqx4HKt, https://t.co/ZekOfFeoXF, https://t.co/9MKvOdyxN3, https://t.co/Bnt6dbEdSi, https://t.co/SODeKvPbac | Husband & Dad | He/him | Musician, Space Nerd, Foodie | Vegan
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Diana Park @madebydia
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Silicon Salvage @SiliconSalvage
17K Followers 3 Following AI has killed software and tech stocks. Valuations are at multi-decade lows. Stock prices are in the trash. This is a once in a lifetime opportunity to buy fear
FFmpeg @FFmpeg
117K Followers 185 Following The universal multimedia toolkit. A diverse, community-driven project; posts are by individuals.
Mark Johnston @profutures2012
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Paul Nary @ProfPaulNary
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will depue @willdepue
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Yishan @yishan
106K Followers 535 Following I run Terraformation, and I was once the CEO of Reddit. Both are very interesting challenges. AMA in a subscriber-only newsletter! https://t.co/zA2F2S7etG
Greg Girard @gregforaday
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VoidZero @voidzerodev
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Peter McCrory @PeterMcCrory
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Leonardo de Moura @Leonard41111588
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BobCasey @BobCasey
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Alan MacLeod @AlanRMacLeod
386K Followers 957 Following Senior Staff Writer/Podcast Producer, @MintPressNews. I mostly tweet about US/Mid East & Lat Am. politics, but complaining about corporate media is my passion.
























