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Show HN: JsonUI – Constrain AI agents through code structure, not prompts

1•tai-kimura•45s ago•0 comments

Ask HN: What are the most significant man-made creations to date?

2•George97•6m ago•1 comments

Free climbing in Greenland: Arctic ascent with Alex Honnold [video]

https://www.youtube.com/watch?v=ep-xRQDTiOg
1•teleforce•7m ago•0 comments

Breakmeifyoucan: Exploiting PKO and Relay Attacks in 3DES/AES NFC Technologies

https://breakmeifyoucan.com/
1•netsec_burn•7m ago•0 comments

Show HN: Local Masonry Video Player – Pinterest UI, Prompt Search, Mobile Stream

https://github.com/HoujyouChomei/local-masonry-video-player
1•choumei•8m ago•1 comments

Tinder for Issues

https://twitter.com/acolombiadev/status/2014830414410518885
1•andreag11•9m ago•0 comments

PlowNYC: Track the progress of DSNY snow removal vehicles

https://plownyc.cityofnewyork.us/plownyc/
1•exegete•9m ago•0 comments

Show HN: HomeGenGuide – Calculator for home generator installation costs

https://www.home-generator-installation.com
1•vansxxx•10m ago•0 comments

EditTools

https://edittools.org
1•zhouhua•11m ago•0 comments

Fixing Breadboards for Wide Microcontrollers – Pico and ESP32 Edition

https://www.instructables.com/Fixing-Breadboards-for-Wide-Microcontrollers-Pico-/
1•rbanffy•11m ago•0 comments

Show HN: Reminders to Stay in Touch with Friends

https://myfriends.lol
1•alabhyajindal•12m ago•0 comments

Who is using AI to code? Global diffusion and impact of generative AI

https://www.science.org/doi/10.1126/science.adz9311
4•oss_fan•16m ago•0 comments

I reverse-engineered Kindle to build on-demand AI audiobooks

https://blog.ryanbbrown.com/p/i-reverse-engineered-kindle-to-build
2•ryanbbrown•16m ago•0 comments

SoundCloud deleted 12 years of my music – so I built my own

2•miguelmichelson•16m ago•0 comments

In Praise of Pre-Hays: "Morocco" and the Public Domain

https://blog.archive.org/2026/01/20/in-praise-of-pre-hays-morocco-and-the-public-domain/
1•Kye•19m ago•0 comments

Show HN: TUI to track stock and cryptocurrencies in real-time

https://github.com/ni5arga/stock-tui
1•ni5arga•20m ago•0 comments

Post Takeover Ethics

https://gist.github.com/muratozkan/b0918e359532766abeaf9202420516e5
1•BloodRavens•22m ago•0 comments

Speed Vertigo: A New Kind of Engineering Debt

https://joshtuddenham.dev/blog/vertigo/
1•bananaboy•22m ago•0 comments

Show HN: Shorlabs – the Vercel for backend (open-source)

https://github.com/aryankashyap0/shorlabs
1•vforbackend•22m ago•0 comments

Ask HN: Is there a way to browse HN weekly?

1•montenegrohugo•22m ago•0 comments

Ktor 3.4.0

https://blog.jetbrains.com/kotlin/2026/01/ktor-3-4-0-is-now-available/
3•andrewstetsenko•27m ago•0 comments

UK judge rules that RuneScape gold is fair game when suing for theft

https://www.pcgamer.com/games/mmo/uk-judge-rules-that-runescape-gold-is-fair-game-when-suing-for-...
2•jalev•28m ago•1 comments

Volvo EX60 Targets 400-Mile Range and Coffee-Stop Charging

https://www.thedrive.com/news/volvo-ex60-targetes-400-mile-range-and-coffee-stop-charging
3•PaulHoule•29m ago•0 comments

Show HN: Can you draw an upside down pinepapple?

https://canyoudraw.io
4•learntocode222•32m ago•2 comments

ProtoMQ: Type-safe, bandwidth-efficient MQTT for the rest of us

https://github.com/electricalgorithm/protomq
1•gyokhan•32m ago•1 comments

Ask HN: Is it worth creating another open-source test coverage aggregator?

1•mmarian•33m ago•0 comments

What the Fuck Is a Vcpu?

https://sliplane.io/blog/vcpus-are-a-marketing-scam
1•jonas_scholz•36m ago•0 comments

Claude Web Is Down

1•zkmon•37m ago•0 comments

Show HN: Gitmore – AI-powered Git reports that write themselves

1•inferno22•41m ago•0 comments

Co-Do – AI File System Manager

https://co-do.xyz/
1•xnx•44m ago•0 comments
Open in hackernews

Ask HN: Which function definition keyword do you prefer, def or fn?

1•winwang•8mo ago
I'm curious about what people think of `def` vs `fn`, two short keywords for starting function definitions.

...Or maybe we should subscribe to the church of `df`, haha.

Comments

sitkack•8mo ago
def could be for lots of things, fn is for functions. I don't think it matters much as long as you have one. C would have been so much easier to parse. Just copy Zig or Rust.
butlersean•8mo ago
def means define, could be used to define all kinds of things

fn isnt a legitimate short form of function

fun doesnt work because of the amusement factor

func is the only alternative we have left

sitkack•8mo ago
How about unicode or emojis?

These don't have the full fidelity as hn scrubs emojis

add = (a, b) -> a + b

a, b ⟹ a + b

λ add(a, b): ↪ a + b

johncoltrane•8mo ago
"def" is too generic.

"fn" is too cryptic.

"function" is better than the two.

MultifokalHirn•8mo ago
Agreed