Node/Deno でソースコードにテストを書く
tl;dr ファイルをそれ単独で単体テストとして実行するボイラープレートを編み出した そのヘルパとして mizchi/test という実装を作った なぜソースコードにテストを書きたいか Rust や Python の doctest ではソースコードにテストを書く方法があります。 ソースコードにテストを書けると、コードとテストの心理的な距離が近くなってテストが書きやすくなる、という肌感があります。(諸説あります) 実装とテストが混ざって汚れるのが嫌という意見も理解できますが、それはありつつ認めた上で、あとでリファクタする前提で最初の一歩をその実装に書けると嬉しい、という気持ちがあります。 現状の Node だととりあえず assert するだけという単純なテストを書くことは可能ですが、構造化する方法がないので、簡単なスクラッチの時ぐらいしか行われません。 // test.js import
TL;DR; We are changing std::sort in LLVM’s libcxx. That’s a long story of what it took us to get there and all possible consequences, bugs you might encounter with examples from open source. We provide some benchmarks, perspective, why we did this in the first place and what it cost us with exciting ideas from Hyrum’s Law to reinforcement learning. All changes went into open source and thus I can
Gamedev in Lisp. Part 1: ECS and Metalinguistic Abstraction - cl-fast-ecs by Andrew
Gamedev in Lisp. Part 1: ECS and Metalinguistic Abstraction In this series of tutorials, we will delve into creating simple 2D games in Common Lisp. The result of the first part will be a development environment setup and a basic simulation displaying a 2D scene with a large number of physical objects. It is assumed that the reader is familiar with some high-level programming language, has a gener
What’s in which Python
Created 17 May 2022, last updated 16 August 2025 This is a summary of what features appeared in which versions of Python. Items with a star were introduced with a __future__ import. The Python release cycle is explained in PEP 602. Each release has its own PEP with specific dates, listed here. The Python Developer’s Guide has a page summarizing the release cycles of Python versions. 3.14: expected
Node.js
Notable Changes Deprecations and Removals (SEMVER-MAJOR) fs: remove permissive rmdir recursive (Antoine du Hamel) #37216 (SEMVER-MAJOR) fs: runtime deprecate rmdir recursive option (Antoine du Hamel) #37302 (SEMVER-MAJOR) lib: runtime deprecate access to process.binding('http_parser') (James M Snell) #37813 (SEMVER-MAJOR) lib: runtime deprecate access to process.binding('url') (James M Snell) #377
*if you include word2vec. Chris and I spent a couple hours the other day creating a search engine for my blog from “scratch”. Mostly he walked me through it because I only vaguely knew what word2vec was before this experiment. The search engine we made is built on word embeddings. This refers to some function that takes a word and maps it onto N-dimensional space (in this case, N=300) where each d
Edge AI Just Got Faster
When Meta released LLaMA back in February, many of us were excited to see a high-quality Large Language Model (LLM) become available for public access. Many of us who signed up however, had difficulties getting LLaMA to run on our edge and personal computer devices. One month ago, Georgi Gerganov started the llama.cpp project to provide a solution to this, and since then his project has been one o
Tier 4 Support § Support for these targets is entirely experimental. If this target is provided by LLVM, LLVM may have the target as an experimental target, which means that you need to use Zig-provided binaries for the target to be available, or build LLVM from source with special configure flags. zig targets will display the target if it is available. This target may be considered deprecated by
Tier 4 Support § Support for these targets is entirely experimental. If this target is provided by LLVM, LLVM may have the target as an experimental target, which means that you need to use Zig-provided binaries for the target to be available, or build LLVM from source with special configure flags. zig targets will display the target if it is available. This target may be considered deprecated by
This article is a translation, the original version is available here. I started using the OCaml language regularly around 2012, and since then, my interest and enthusiasm for this language have only grown. It has become my preferred choice for almost all my personal projects, and it has also influenced my professional choices. Since 2014, I have been actively participating in public conferences d
Try Mastering Emacs for free! Are you struggling with the basics? Have you mastered movement and editing yet? When you have read Mastering Emacs you will understand Emacs. It’s that time again: there’s a new major version of Emacs and, with it, a treasure trove of new features and changes. Notable features include the formal inclusion of native compilation, a technique that will greatly speed up y
Type Parameters Proposal
Ian Lance Taylor Robert Griesemer August 20, 2021 StatusThis is the design for adding generic programming using type parameters to the Go language. This design has been proposed and accepted as a future language change. We currently expect that this change will be available in the Go 1.18 release in early 2022. AbstractWe suggest extending the Go language to add optional type parameters to type an
Basic facts about GPUs
Basic facts about GPUs last updated: 2025-06-18 I’ve been trying to get a better sense of how GPUs work. I’ve read a lot online, but the following posts were particularly helpful: Making Deep Learning Go Brrrr From First Principles What Shapes Do Matrix Multiplications Like? How to Optimize a CUDA Matmul Kernel for cuBLAS-like Performance: a Worklog This post collects various facts I learned from
Making Deep Learning Go Brrrr From First Principles So, you want to improve the performance of your deep learning model. How might you approach such a task? Often, folk fall back to a grab-bag of tricks that might've worked before or saw on a tweet. "Use in-place operations! Set gradients to None! Install PyTorch 1.10.0 but not 1.10.1!" It's understandable why users often take such an ad-hoc appro
The Alkyne GC · mcyoung
Alkyne is a scripting language I built a couple of years ago for generating configuration blobs. Its interpreter is a naive AST walker1 that uses ARC2 for memory management, so it’s pretty slow, and I’ve been gradually writing a new evaluation engine for it. This post isn’t about Alkyne itself, that’s for another day. For now, I’d like to write down some notes for the GC I wrote3 for it, and more
Large Text Compression Benchmark Matt Mahoney Last update: July 3, 2025. history This competition ranks lossless data compression programs by the compressed size (including the size of the decompression program) of the first 109 bytes of the XML text dump of the English version of Wikipedia on Mar. 3, 2006. About the test data. The goal of this benchmark is not to find the best overall compressi
OpenSearchで実現する画像検索とテスト追加で目指す安定運用 こんにちは、CADDi AI Lab MLEの志水です。 8/19に10X,M3の両社と検索運用の勉強会#Search_C10Xm3 を開催いたしました。 おかげさまで当日までの登録者が254名 、当日の参加者は最大137名までお越しいただき大盛況でした。 勉強会中何度か紹介されたペンギン本 がAmazonで売り切れる ような反響もあったようです。 その中から、キャディ発表分を抜粋したイベントレポートをいたします！ - 10Xさんの発表資料はこちらから - M3さんの発表資料はこちらから AI Labでは図面管理SaaS CADDi DRAWER の検索サービスを開発／運用してきており、その経験からOpenSearchで実現する画像検索とテスト追加で目指す安定運用についてお話ししました。 目次 opensearch で k
Introduction: These Aren’t the JSONs You’re Looking For JSON (JavaScript Object Notation) was designed as a simple, lightweight, and human-readable data interchange format, often positioned as a more accessible alternative to XML. It has become the de facto standard for web APIs and system integration. However, while the specification itself is straightforward, different programming languages and
Building and deploying an object detection computer vision application at the edge with AWS Panorama | Amazon Web Services
Artificial Intelligence Building and deploying an object detection computer vision application at the edge with AWS Panorama Computer vision (CV) is sought after technology among companies looking to take advantage of machine learning (ML) to improve their business processes. Enterprises have access to large amounts of video assets from their existing cameras, but the data remains largely untapped
Introduction to 'pyglet' Library Pyglet is easy to use but powerful library for developing visually rich GUI applications like games, multimedia etc on Windows, Mac OS and Linux. This library is created purely in Python and it supports many features like windowing, user interface event handling, Joysticks, OpenGL graphics, loading images, and videos, and playing sounds and music. pyglet is provide
Premature optimisation might be the root of all evil, but overdue optimisation is the root of all frustration. No matter how fast hardware becomes, we find it easy to write programs which run too slow. Often this is not immediately apparent. Users can go for years without considering a program’s performance to be an issue before it suddenly becomes so — often in the space of a single working day.
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Changing std::sort at Google’s Scale and Beyond
A simple search engine from scratch*
0.8.0 Release Notes ⚡ The Zig Programming Language
0.10.0 Release Notes ⚡ The Zig Programming Language
xvw.lol - Why I chose OCaml as my primary language
What's New in Emacs 28.1?
Making Deep Learning go Brrrr From First Principles
Large Text Compression Benchmark
OpenSearchで実現する画像検索とテスト追加で目指す安定運用【イベントレポート】 - CADDi Tech Blog
JSON is not JSON Across Languages | Dochia CLI Blog
Python pyglet Library | DevelopersIO
Laurence Tratt: Four Kinds of Optimisation