8191
Using XPath in 2023
In the latest release of htmx , you can add event listeners to elements with hx-on :
Topics /
Software Engineering
The most popular blog posts about software engineering on Hacker News. 14,540 posts.
8192
8193
How to allocate memory
Many programmers use malloc() and free() and pay no more mind to "allocating memory", but I often find 2-20× speed improvements by rethinking memory usage, so it is something I usually want to examine when joining a distressed project.
8194
8195
8196
8197
Curate your shell history
You can make your shell history more useful by removing the typos and false starts.
8198
How I Build Web Apps As A Freelancer
It's now roughly seven or eight years that I'm building dynamic front ends for the web. From digital art wallets to games (1, 2) and synthesizers, I've seen it all. And since my process
8199
QOA, the Quite OK Audio Format
Audio formats typically fall into one of three categories: “lossless” , “complicated” or “bad” . After developing a simple image format last year, I tried to come up with an audio format that fits neither of these categories.
8200
Crates.io phishing attempt
Earlier this week, an npm supply chain attack. It’s turn for crates.io, the main public repository for Rust crates (packages). The phishing e-mail looks like this: And it leads to a GitHub login pa...
8201
A monoid is a category, a category is a monad, a monad is a monoid
In the last few months I taught three graduate mini-courses about string diagrams and graphical linear algebra – at Phd Open in Warsaw, a winter school in Estonia, and a graduate school in Le…
8202
A simple way to scale pixel art games
Previously in How to present MS-DOS screenshots , I encouraged readers to take the original pixel aspect ratio into account when showing pictures of old games. There’s also a subtler issue to consider: the blur analog display systems had.
8203
Git ls-files is Faster Than Fd and Find
Git ls-files is up to 5 times faster than fd or find in this benchmark, but why?
8204
How MOS 6502 illegal opcodes work
The original NMOS version of the MOS 6502, used in computers like the Commodore 64, the Apple II and the Nintendo Entertainment System (NES), is well-known for its illegal opcodes: Out of 256 possible opcodes, 151 are defined by the architecture, but many of the remaining 105 undefined opcodes do…
8205
A quick look at OS/2's builtin virtualization
A while ago, someone on the fediverse mentioned "OS/2's virtualization features" to me. I don't remember who it was, sorry. I had the chance to take a look at this today.
8206
LLM codegen go brrr – Parallelization with Git worktrees and tmux
If you're underwhelmed with AI coding agents or simply want to get more out of them, give parallelization a try. After seeing the results firsthand over the past month, I'm ready to call myself an evangelist. The throughput improvements are incredible, and I don't feel like I'm losing control of the codebase.
8207
Of abusive behavior in programming communities
It is traditional for each release of perl to be announced with a form letter beginning with a quote, or epigraph, chosen by the release engineer. For Perl 5.16.0, I chose the penultimate stanza from W.H. Auden’s September 1, 1939.
8208
8209
Improve developer habits by showing time cost of DB queries
This is the first in a series of posts where I share a quick, easy to implement tip that I’ve found useful in my development career
8210
Datasette Apps: Host custom HTML applications inside Datasette
Today we launched a new plugin for Datasette, datasette-apps, with this launch announcement post on the Datasette project blog. That post has the what, but I’m going to expand on …
8211
Covariance and Contravariance
Subtypes and supertypes are a common part of modern programming. Covariance and contravariance tell us where subtypes are accepted and where supertypes are accepted in place of the original type. This shows up frequently in most of the programming most of us do, but many developers are unaware of the concepts beyond a…
8212
8213
8214
Improving Emacs Isearch Usability with Transient
Emacs incremental search (isearch) has an embarrassingly rich feature set. That said, I rarely use isearch beyond its basics for the twofold reasons: There are many isearch commands that are...
8215
8216
Announcing the new Roslyn-powered .NET Framework Reference Source
In 2007 ScottGu's team announced they were releasing the .NET Framework source ...
8217
Self-Enforcing Protocols
There are several ways two people can divide a piece of cake in half. One way is to find someone impartial to do it for them. This works, but it requires another person. Another way is for one person to divide the piece, and the other person to complain (to the police, a judge, or his parents) if he doesn’t think it’s…
8218
8219
FogBugz goes dark
Today I got an email titled ‘Your Manuscript Account Balance’ which said: Your Manuscript account is now in arrears in the amount of $31.25. Use this link to specify a credit card for y…
8220
Ideas for Game Clones to Code (2012)
So you know a little bit about programming (perhaps you've read the free book, "Invent Your Own Computer Games with Python" , a free programming book for beginners whose author shamelessly plugs at every chance) but you want to get better at coding. You can't seem to find any open source projects that are at your…