@jcubic

Software Engineer / Geek / Tech Wizard / Open-Source Developer / GNU Emacs and GNU/Linux User / Wikipedia Editor, Mentor, and Trainer

 Poland
jakub.jankiewicz.org
Joined May 2010
  • Tweets37.2K
  • Following437
  • Followers3.8K
2.5KMedia
This is pure magic, a #JavaScript function that uses Regular Expression to check if the number is Prime. Found in this article noulakaz.net/2007/03/18/a-re… and rewritten in JavaScript #Regex #TechTwitter
JavaScript that define arrow function is_prime, which uses regular expression to test if number is prime

ALT JavaScript that define arrow function is_prime, which uses regular expression to test if number is prime

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My mother failed to install @CorelDRAW 13 on Windows 11. It's not compatible. AI told her to use @inkscape. TIL: that it can open CorelDraw files. The #OpenSource won on this one.
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Just finished slides for my next talk that I will present in November. The title is a paraphrase of JFK's quote, "Ask not what your country can do for you; ask what you can do for your country."
LibreOffice Impress with slides showing the first one that looks like a blackboard with the Wikimedia Polska logo and a title that looks similar to what JFK said.

ALT LibreOffice Impress with slides showing the first one that looks like a blackboard with the Wikimedia Polska logo and a title that looks similar to what JFK said.

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My 9 albums #my9albums
My9Albums. The sound that made @jcubic. Follow the link from the next post to see my picks.

ALT My9Albums. The sound that made @jcubic. Follow the link from the next post to see my picks.

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my9albums.com/s/flQcOduaWJ

My 9 albums

Tales From the Thousand Lakes, Judgement, The Light at the End of the World and 6 more. Pick yours on my9albums.

my9albums.com
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Jakub T. Jankiewicz πŸ‡΅πŸ‡± retweeted
andi (twocents.com)
@NexuistOct 22
I didn’t know my brain was still holding onto this news article I read from 2002, but this tweet pulled it out of me
Steven Michael Thomas
@stevenwhatevrOct 21
This seems bad.
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Jakub T. Jankiewicz πŸ‡΅πŸ‡± retweeted
Ayaan 🐧
@twtayaanOct 22
Linus Torvalds used Claude again to remove years-old, slow and insecure Linux kernel code. The cleanup is now merged into Linux 7.4 and spans 48 commits. It targets __get_user() and __put_user(), old memory-access helpers that skip user-address checks. Linus says their historical performance advantage disappeared years ago. He wrote the initial example patch, then used Claude to help apply the same changes elsewhere. The old calls are gone from generic kernel code, with the interfaces fully removed on x86. Other architectures still retain some uses. As Linus put it, β€œwe should have done this years ago.” Source: github.com/torvalds/linux/co…
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Jakub T. Jankiewicz πŸ‡΅πŸ‡± retweeted
Neal Agarwal
@nealagarwalOct 22
Finally made an about page, it includes my heart rate neal.fun/about/
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Do you use PHP? I've just updated all my websites to PHP 8.4, which was patched.
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My GitHub contributions, every year since 2010: 27,180 in total. Generate yours: mo.rgan.co/gh/jcubic
GitHub contribution chart consisting of green box mosaics starting from 2010

ALT GitHub contribution chart consisting of green box mosaics starting from 2010

Swastik Baranwal β‡Œ@Delta2315Oct 21
My GitHub contributions, every year since 2017: 3,643 in total. Generate yours: mo.rgan.co/gh/Delta456
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Thulsa Doom from Norway Seen them live a few years ago
Metal band on stage. On vocals, James Earl Jones from Conan: The Barbarian

ALT Metal band on stage. On vocals, James Earl Jones from Conan: The Barbarian

Sandy Petersen πŸͺ”
@SandyofCthulhuOct 21
You're not a real metal fan unless you can name this band.
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It seems that some people only see Hype. If you want to use Linux, use something that will work for you. Omarchy is not a Linux distro. It's one-person setup.
Leo builds
@LeoBuilds_Oct 19
Give me a reason to move from MacOS to Omarchy Linux.
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Finally got a job interview. Fingers crossed. 🀞
Microsoft Teams meeting: "Senior Frontend Developer"

ALT Microsoft Teams meeting: "Senior Frontend Developer"

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Jakub T. Jankiewicz πŸ‡΅πŸ‡± retweeted
Kyros
@IamKyros69Oct 16
anthropic made claude code 3x faster using gzip. a compression tool from 1992.
ClaudeDevs
@ClaudeDevsOct 16
We keep improving performance across Claude, and you may have noticed it starts responding sooner! Claude Code now gzips the conversation it sends on every turn, so it reaches the model faster. Cloud sessions also start up as soon as you start typing.
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I've never met someone who writes code telekinetically I would love to see a demo of typing without hands
Π’sΡ„diΠΈg
@tsodingOct 18
Nobody ever wrote code "by hands". You write code with your brain. Or you don't.
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watching some classic from 1995 on a DVD. Did you seen this one?
Mortal Kombat DVD in DVD player.

ALT Mortal Kombat DVD in DVD player.

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What will be the result of this #JavaScript function?
function mistery() { <!-- return 1; return 2; --> return 3; } console.log(mistery());

ALT function mistery() { <!-- return 1; return 2; --> return 3; } console.log(mistery());

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Jakub T. Jankiewicz πŸ‡΅πŸ‡± retweeted
Strace
@straceXOct 16
In the 1970s, European keyboards didn't always have {, }, [, or ] keys. So the C standard added Digraphs and they are still 100% legal in C today:
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Another successful Linux installation on my mother's old laptop. She needed Windows XP to run an old art encyclopedia from a CD.
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Had experience upgrading Windows 10 to Windows 11 on my mom's new laptop 4 hours of wasted time Now I appreciate Linux even more 🧡
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more replies
Maybe when she uses it for a bit and the new Windows bloats again, she will change her mind on the main system.
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@Inkscape is just a way better vector drawing tool than @CorelDraw. I hope she will see that in the near future.
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