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How Web Browsers Work

https://arnauc.me/blog/how-browsers-work/
1•ErenayDev•1m ago•0 comments

Plasma Tunnels Reveal How Dying Satellites Fall to Earth

https://spectrum.ieee.org/space-debris-atmosphere-burn-up
1•marc__1•1m ago•0 comments

The fifth dimension could be possibility

https://gingerjuice.club/article/the-dimensional-stacking-principle-a-geometric-framework-for-the...
1•streetai•1m ago•0 comments

Ask HN: What's the best hands-on path to learn ML inference infrastructure?

1•censor5•5m ago•0 comments

AI is set to drive surging electricity demand from data centres (2025)

https://www.iea.org/news/ai-is-set-to-drive-surging-electricity-demand-from-data-centres-while-of...
1•dredmorbius•7m ago•0 comments

Making a cache cluster more effective

https://basta.substack.com/p/making-a-cache-cluster-more-effective
1•tyre•10m ago•0 comments

Gary Stevenson to quit YouTube channel, citing health concerns

https://www.theguardian.com/business/2026/jul/26/gary-stevenson-to-quit-youtube-channel-garys-eco...
1•jimnotgym•13m ago•0 comments

CuNi v01

https://cuni-studio.fly.dev/
1•agentrider•13m ago•0 comments

Why Everyone Got Spain's Blackout Wrong [video]

https://www.youtube.com/watch?v=Rb9oWsQuENE
1•pepperoni_pizza•18m ago•0 comments

An Open-Source Static AI Capability and Risk Analyzer – First Week Report

https://github.com/ikaruscareer/SafeAI
1•ikaruscareer•20m ago•0 comments

1877–1878 El Niño event

https://en.wikipedia.org/wiki/1877%E2%80%931878_El_Ni%C3%B1o_event
2•simonebrunozzi•20m ago•0 comments

Doom for PC-FX [video]

https://www.youtube.com/watch?v=wUd5IGMbe48
1•cedel2k1•21m ago•0 comments

Buying a Home Has Gotten Harder for Young Adults in Most U.S. Metro Areas

https://www.pewresearch.org/short-reads/2026/06/24/buying-a-home-has-gotten-harder-for-young-adul...
1•karakoram•21m ago•0 comments

PGSimCity – an explorable 3D model that shows how Postgres works

https://github.com/NikolayS/pgsimcity
1•samokhvalov•22m ago•0 comments

Big Tech accused of stonewalling European social media researchers

https://www.wired.com/story/european-researchers-want-to-study-social-medias-harms-but-cant-get-t...
2•logickkk1•25m ago•0 comments

Wright's Law Edges Out Moore's Law in Predicting Technology Development (2012)

https://spectrum.ieee.org/wrights-law-edges-out-moores-law-in-predicting-technology-development
1•simonpure•30m ago•0 comments

Coding Has Agents. Trading Has One

https://henryzhang.substack.com/p/coding-has-agents-trading-finally
1•henryzhangpku•30m ago•0 comments

Simulate cassette tape audio profiles using FFmpeg

https://github.com/AARomanov1985/Audio-Cassette-Simulation
2•xterminal•31m ago•1 comments

Show HN: Infinite Jigsaw Game

https://infinitejigsaw.com
2•impostervt•31m ago•0 comments

The Sustained Performance Gap: Why Laptop Specs Don't Tell the Whole Story

https://psyll.com/articles/technology/tech-gadgets/thermal-throttling-why-laptops-lie-about-speed
1•lucasfletcher•32m ago•0 comments

The Lego Problem, Revisited

https://seths.blog/2026/07/the-lego-problem/
1•herbertl•33m ago•0 comments

Most Americans Say Financial Milestones Are Harder for Today's Young Adults

https://www.pewresearch.org/short-reads/2026/07/17/majorities-of-americans-say-key-financial-mile...
4•karakoram•36m ago•0 comments

The American E.V. Has Been Crushed. Will It Take the U.S. Auto Industry with It?

https://www.nytimes.com/2026/07/15/magazine/electric-cars-american-evs.html
3•bookofjoe•38m ago•1 comments

Vulnerabilities in CJSON

https://joshua.hu/cjson-json-parser-cve-vulnerabilities
2•ingve•40m ago•0 comments

Automate 7 Projects Marketing with AI for $40

https://apsquared.co/posts/marketing-automation-claude-codex
1•apsquared•41m ago•0 comments

What does GitHub's security team even do?

https://orchidfiles.com/github-security-team/
36•theorchid•42m ago•4 comments

We built phone-only laser tag with computer vision and sensor fusion

https://lightwarsar.com/engineering/targeting-system/
2•mrr7337•44m ago•0 comments

When Compilers Disagree About UTF‑8

https://nemanjatrifunovic.substack.com/p/when-compilers-disagree-about-utf8
2•ingve•47m ago•0 comments

Two AI Futures to Choose From

https://www.rameznaam.com/p/two-ai-futures-to-choose-from
2•simonpure•48m ago•0 comments

against “it’s not that deep”. actually, it is

https://velvetnoise.substack.com/p/against-its-not-that-deep-actually
2•jger15•49m ago•0 comments
Open in hackernews

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

1•winwang•1y 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•1y 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•1y 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•1y 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•1y ago
"def" is too generic.

"fn" is too cryptic.

"function" is better than the two.

MultifokalHirn•1y ago
Agreed