Welcome to Comprehensive Rust 🦀 This is a free Rust course developed by the Android team at Google. The course covers the full spectrum of Rust, from basic syntax to advanced topics like generics and error handling. The latest version of the course can be found at https://google.github.io/comprehensive-rust/. If you are reading somewhere else, please check there for updates. The course is availab
Don't write clean code, write CRISP code — Bitfield Consulting
I’m sure we’re all in favour of “clean code”, but it’s one of those motherhood-and-apple-pie things that no one can reasonably disagree with. Who wants to write dirty code, unless maybe it’s for a porn site? The problem, of course, is that few of us can agree on what “clean code” means, and how to get there. A rule like “methods should only do one thing”, looks great on a T-shirt, but it’s not so
> BTC: bc1qs0sq7agz5j30qnqz9m60xj4tt8th6aazgw7kxr ETH: 0x1D834755b5e889703930AC9b784CB625B3cd833E USDT(Tron): TPrCq8LxGykQ4as3o1oB8V7x1w2YPU2o5n Ton: UQAtBuFWI3H_LpHfEToil4iYemtfmyzlaJpahM3tFSoxomYQ Doge: D7GMQdKhKC9ymbT9PtcetSFTQjyPRRfkwTdismiss OOP: the worst thing that happened to programming [2/24/2025] In this article, we will try to understand why OOP is the worst thing that happened to prog
ソースコード & ドキュメントに対応したGraph RAGの実装（Tree-sitter + LightRAG）
(module (function_definition (identifier) # ← ここに関数名「sample_func」が含まれます (parameters) (block (expression_statement (call (identifier) (argument_list (string)))))) (expression_statement (call (identifier) (argument_list)))) ノードが色々取れましたが、「function_definition」が関数、その子である「identifier」が関数名を表すため、 function_definition == 子ノード ==> identifier となっている箇所を探索すれば抽出できます（関数ではあっても「lambda」など異なる場合もあります）。 今回は上記のようにTree-si
Rewriting the Ruby parser
At Shopify, we have spent the last year writing a new Ruby parser, which we’ve called YARP (Yet Another Ruby Parser). As of the date of this post, YARP can parse a semantically equivalent syntax tree to Ruby 3.3 on every Ruby file in Shopify’s main codebase, GitHub’s main codebase, CRuby, and the 100 most popular gems downloaded from rubygems.org. We recently got approval to merge this work into C
Programming is an iterative process. As much as we would like to come up with the perfect solution from the start, it rarely works that way. Good programs often begin as quick prototypes. While many experiments remain prototypes, the best programs can evolve into production code. Whether you’re writing games, CLI tools, or designing library APIs, prototyping helps tremendously in finding the best
The SaaS CTO Security Checklist Redux - Gold Fig — Peace of mind for infrastructure teams
Doing the basics goes a long way in keeping your company and product secure. This third1 edition of the SaaS CTO Security Checklist provides actionable security best practices CTOs (or anyone for that matter) can use to harden their security. This list is far from exhaustive, incomplete by nature since the security you need depends on your company, product, and assets. 🚀 Your employees Accustom e
Fizz Buzz is a common challenge given during interviews. The challenge goes something like this: Write a program that prints the numbers from 1 to n. If a number is divisible by 3, write Fizz instead. If a number is divisible by 5, write Buzz instead. However, if the number is divisible by both 3 and 5, write FizzBuzz instead. The goal of this question is to write a FizzBuzz implementation that go
Golang Mini Reference 2022: A Quick Guide to the Modern Go Programming Language (REVIEW COPY)
Golang Mini Reference 2022 A Quick Guide to the Modern Go Programming Language (REVIEW COPY) Harry Yoon Version 0.9.0, 2022-08-24 REVIEW COPY This is review copy, not to be shared or distributed to others. Please forward any feedback or comments to the author. • feedback@codingbookspress.com The book is tentatively scheduled to be published on September 14th, 2022. We hope that when the release da
Improving Rails scalability using the modular monolith approach with enforced boundaries
I did a talk at LRUG (London Ruby User Group) on this! If you like this post, or prefer video based content, you can check it out here. Ruby & Rails have a reputation for not scaling well — you’ve probably heard this already. TLDR for this postThere’s 3 things I’m going to talk about that have been used to improve the scalability of a Rails application. 1. Make the Rails application modular 2. Cre
How to improve Python packaging, or why fourteen tools are at least tw
There is an area of Python that many developers have problems with. This is an area that has seen many different solutions pop up over the years, with many different opinions, wars, and attempts to solve it. Many have complained about the packaging ecosystem and tools making their lives harder. Many beginners are confused about virtual environments. But does it have to be this way? Are the current
The Go Programming Language and Environment – Communications of the ACM
Go is a programming language created at Google in late 2007 and released as open source in November 2009. Since then, it has operated as a public project, with contributions from thousands of individuals and dozens of companies. Go has become a popular language for building cloud infrastructure: Docker, a Linux container manager, and Kubernetes, a container deployment system, are core cloud techno
Best practices for writing code comments - Stack Overflow
Stack Internal: the knowledge intelligence layer that powers enterprise AI. Stack Data Licensing: decades of verified, technical knowledge to boost AI performance and trust. [Ed. note: While we take some time to rest up over the holidays and prepare for next year, we are re-publishing our top ten posts for the year. Please enjoy our favorite work this year and we’ll see you in 2022.] Famed MIT pro
Eyes Above The Waves Robert O'Callahan. Christian. Repatriate Kiwi. Hacker. Archive 2025 June Not Joking About AI Building A PC April Rakiura Northwest Circuit February Tongariro Northern Circuit 2025 January Pararaha Valley 2025 2024 December Mt Arthur/Tablelands/Cobb Valley November Queen Charlotte Track 2024 October Auckland Half Marathon 2024 Advanced Debugging Technology In Practice June Waih
The Junior Developer Extinction: We’re All Building the Next Programming Dark Age
“I have not failed. I’ve just found 10,000 ways that won’t work.” — Thomas Edison Though to be fair, Edison never had to explain to his manager why the AI-generated light bulb stopped working, and nobody on the team understood the filament design. Picture this scene, familiar to anyone who’s conducted code reviews in the past year: A junior developer presents their pull request with the quiet conf
I’m a fairly frequent Hacker News lurker, especially when I have some other important task that I’m avoiding. I normally head to the Active page (lots of comments, good for procrastination) and pick a nice long discussion thread to browse. So over time I’ve ended up with a good sense of what topics come up a lot. “The Bay Area is too expensive.” “There are too many JavaScript frameworks.” “Bootcam
Arti 1.0.0 is released: Our Rust Tor implementation is ready for production use. | Tor Project
Arti 1.0.0 is released: Our Rust Tor implementation is ready for production use. by nickm | September 2, 2022 Back in 2020, we started work on a new implementation of the Tor protocols in the Rust programming language. Now we believe it's ready for wider use. In this blog post, we'll tell you more about the history of the Arti project, where it is now, and where it will go next. Background: Why Ar
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Exactly ten years ago today, we published "Why We Created Julia", introducing the Julia project to the world. At this point, we have moved well past the ambitious goals set out in the original blog post. Julia is now used by hundreds of thousands of people. It is taught at hundreds of universities and entire companies are being formed that build their software stacks on Julia. From personalized me
research!rsc: Programming Language Memory Models (Memory Models, Part 2)
Programming language memory models answer the question of what behaviors parallel programs can rely on to share memory between their threads. For example, consider this program in a C-like language, where both x and done start out zeroed. // Thread 1 // Thread 2 x = 1; while(done == 0) { /* loop */ } done = 1; print(x); The program attempts to send a message in x from thread 1 to thread 2, using d
I recently spoke to a developer who tried blogging but gave up because nobody was reading his posts. I checked out his blog, and it was immediately obvious why he didn’t have any readers. The developer had interesting insights, but he made so many mistakes in presenting his ideas that he was driving everyone away. The tragedy was that these errors were easy to fix. Once you learn to recognize them
The Internet Computer is the world’s first blockchain that runs at web speed and can increase its capacity without bound. DFINITY Status Update, New Year 2021I HAVE SOME EXCITING NEWS.On December 18, 2020, a crucial initial stage of Internet Computer blockchain’s decentralization occurred. This means that the Internet Computer’s mainnet now exists, and is hosted by standardized “node machines” tha
Reflection is something a lot of people wish the Rust language had: It is not hard to stumble across somebody with an interesting use case for it. People want to use it for serialization, GCs, better interop, and so, so much more. If you can think of a task, there is somebody out there wishing they could implement it using reflection. Sadly, it does not look like it is coming any time soon. Still,
Expert Generalists
As computer systems get more sophisticated we've seen a growing trend to value deep specialists. But we've found that our most effective colleagues have a skill in spanning many specialties. We are thus starting to explicitly recognize this as a first-class skill of “Expert Generalist”. We can identify the key characteristics of people with this skill - and thus recruit and promote based on it. We
Technology Trends for 2024
This has been a strange year. While we like to talk about how fast technology moves, internet time, and all that, in reality the last major new idea in software architecture was microservices, which dates to roughly 2015. Before that, cloud computing itself took off in roughly 2010 (AWS was founded in 2006); and Agile goes back to 2000 (the Agile Manifesto dates back to 2001, Extreme Programming t
Look, I’m going to say something that might sound crazy to some of you: Java deserves to be better in the terminal. And 2026? That’s going to be the year we fix it! I’ve been watching people get absolutely amazed by AI terminal applications lately. LLM-powered CLI tools that help you write code, answer questions, generate content—all from your terminal. And you know what they’re all written in? Py
Exceptions kind of suck in Haskell. You don’t get a stack trace. They don’t show up in the types of functions. They incorporate a subtyping mechanism that feels more like Java casting than typical Haskell programming. A partial solution to the problem is HasCallStack - that gives us a CallStack which gets attached to error calls. However, it only gets attached to error - so you can either have Str
C interpreters are a common language implementation technique and the basis for the reference implementations of languages such as Lua, Ruby, and Python. Unfortunately, C interpreters are slow, especially compared to language implementations powered by JIT compilers. In this post I’m going to show that it is possible to take C interpreters and, by changing a tiny proportion of code, automatically
Following up from the last post, there is a lot more we need to cover. This was intended to be the post where we talk exclusively about benchmarks and numbers. But, I have unfortunately been perfectly taunted and status-locked, like a monster whose “aggro” was pulled by a tank. The reason, of course, is due to a few folks taking issue with my outright dismissal of the C and C++ APIs (and not showi
Tuesday, September 13, 2022 :: Tagged under: engineering. ⏰ 11 minutes. Hey! Thanks for reading! Just a reminder that I wrote this some years ago, and may have much more complicated feelings about this topic than I did when I wrote it. Happy to elaborate, feel free to reach out to me! 😄 🎵 The song for this post is I, Don Quixote from the musical Man of La Mancha, composed by Mitch Leigh and Joe
Memory Safety is a Red Herring Dec 21, 2023 TL;DR: I think that a focus on memory safe languages (MSLs) versus non memory-safe languages is a bit of a red herring. The actual distinction is slightly bigger than that: languages which have defined behavior by default, with a superset where undefined behavior is possible, vs languages which allow for undefined behavior anywhere in your program. Memor
This is an all-in-one crosspost of a scenario I originally published in three parts on my blog, No Set Gauge. Links to the originals: A History of the Future, 2025-2027A History of the Future, 2027-2030A History of the Future, 2030-2040 Thanks to Luke Drago, Duncan McClements, Theo Horsley, and Bilal Chughtai for comments. 2025-2027Below is part 1 of an extended scenario describing how the future
Here is a list of common JavaScript interview questions with detailed answers to help you prepare for the interview as a JavaScript developer. JavaScript continues to be a cornerstone of web development, powering dynamic and interactive experiences across the web. As the language evolves, so does the complexity and scope of interview questions for JavaScript developers. Whether you’re a fresher de
Renato Athaydes
How to write really slow Rust code How I tried to port Lisp code to Rust and managed to get a much slower program... and how to fix that! Photo by Sam Moqadam on Unsplash I have recently published a blog post that, as I had expected (actually, hoped for, as that would attract people to contribute to the “study”), generated quite some polemic on the Internet! The post was about an old study by Lutz
Python Interview Questions
Here is a list of common Python interview questions with detailed answers to help you prepare for the interview as a Python developer. Python, with its versatile use cases and straightforward syntax, has seen its popularity growing continuously in software development, data science, artificial intelligence, and many other fields. As such, interviews for Python-related positions are designed not on
Django for Startup Founders: A better software architecture for SaaS startups and consumer apps
In an ideal world, startups would be easy. We'd run our idea by some potential customers, build the product, and then immediately ride that sweet exponential growth curve off into early retirement. Of course it doesn't actually work like that. Not even a little. In real life, even startups that go on to become billion-dollar companies typically go through phases like: Having little or no growth fo
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Welcome to Comprehensive Rust 🦀 - Comprehensive Rust 🦀
OOP: the worst thing that happened to programming
Prototyping in Rust | corrode Rust Consulting
High throughput Fizz Buzz
So You Want To Build A Browser Engine
Hacker News folk wisdom on visual programming
HuggingFaceFW/fineweb · Datasets at Hugging Face
Why We Use Julia, 10 Years Later
How to Write Blog Posts that Developers Read
Announcing Internet Computer “Mainnet” and a 20-Year Roadmap
Rust, reflection and access rules
2026: The Year of Java in the Terminal - @maxandersen
Dynamic Exception Reporting in Haskell
Laurence Tratt: Retrofitting JIT Compilers into C Interpreters
cuneicode, and the Future of Text in C
🤓 So you're using a weird language 🧠
Memory Safety is a Red Herring
A History of the Future, 2025-2040 — LessWrong
JavaScript Interview Questions