18901
What canceled my Go context?
How Go 1.20's WithCancelCause and Go 1.21's WithTimeoutCause let you attach a reason to context cancellation, plus a gotcha with manual cancel and the stdlib pattern that covers every path.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 21,843 posts.
18902
Conformance checking at MongoDB: Testing that our code matches our TLA+ specs
Testing code fidelity with TLA+ specs at MongoDB. Explore conformance checking experiences and agile modelling in distributed systems.
18903
Tokio internals: Understanding Rust's async I/O framework
Tokio is a Rust framework for developing applications which perform asynchronous I/O — an event-driven approach that can often achieve better …
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Design Patterns Are Temporary, Language Features Are Forever
Design patterns are these cool things that make you go 'hell yeah' because they make a certain problem easier to deal with. Whether it's applicable to all languages, or due to a language constraint, they're pretty nice. Of course, some people go crazy with them rather than doing the simple thing that works. Other…
18906
Translation Units Considered Harmful?
area being the function you really care about it is defined first - after all, code reads from top to bottom.
18907
Rust All Hands 2026 Retrospective
Want to follow along with Rust development? Curious how you might get involved? Take a look!
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18909
Things that have a bigger impact than coding assistants
Here are 5 factors that make a bigger difference to software development outcomes than “A.I.” coding assistants, but teams don’t address because they’re “old news, gra…
18910
Oh, Go Ahead, Overthink FizzBuzz (2008)
I gave the best programming interview answer I may have ever given last Friday. The interviewer hauled out FizzBuzz and asked me to solve it. It took me a minute to stop laughing. FizzBuzz is a brain-dead simple programming problem, used pretty much to tell if a developer has a pulse at all. It is…
18911
Notes on Virtual Threads and Clojure
Virtual Threads are an excellent addition to Java platform and here's how Clojure is going to benefit from it.
18912
I Built an Ld_preload Worm
Teenagers' hands are the devil's playthings.
18913
Strange C Syntax
In my attempts to learn the C programming language well enough to write my own C compiler , I've encountered some very interesting examples of C syntax that you generally don't see every day. All of these examples you'll see here will compile without warnings or errors even with very strict compiler flags in gcc and…
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18917
Creating a matchmaker for your multiplayer game
Don't test in production. Test in simulation!
18918
D’s Garbage Collector Problem
One of the biggest issues with Higgs, the JIT compiler I’m working on, is that the compilation times are too slow. The performance of the compiled machine code that Higgs produces is now fair…
18919
18920
Keeping Passwords in Source Control
I learned a neat tip from my co-worker, Craig Silverstein ( more on Craig joining Khan Academy ), recently and I thought others might find it to be useful.
18921
Inverting the Xorshift128 random number generator
CVE-2025-7783 is a very recent vulnerability affecting a lot of applications in the Node.js ecosystem including those which use axios or the deprecated request library. In all honesty, this vulnera…
18922
Serving a website from a Git repo without cloning it
It's fairly common to use git repositories as a vehicle for serving websites. The webdev pushes their changes to some branch of a publicly available git repository, and some web server somewhere serves the current tip of that branch as the website. Github Pages would be the most famous example of this.
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18924
Things Reacters do that Re-framers avoid
JavaScripters often complain about the complexity of React. But to ClojureScripters, React is very nice. What's the difference? In this article, we explore 6 mistakes Reacters make, including mutable state everywhere, Lifecycle Methods and, non-reusable components.
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18926
An Overview of the Starlark Language
Laurent Le Brun's blog
18927
Limiting Private API Availability in Chromium
During a recent audit, we discovered that some third-party Chromium based browsers were able to integrate Google features, such as Chrome sy...
18928
18929
How to make Flappy Bird with C++
A little much about C++, Game Development, Programming and Web
18930
Speeding up Go's built-in JSON encoder for large arrays of objects
I was looking into some of octosql 's benchmarks the other day and noticed a large chunk of time in DataStation / dsq is spent in encoding JSON objects. JSON is an intermediate format in DataStation and it's pretty inefficient. But the reason it's used is because almost every scripting language supported by…