チュートリアル: Yjs, valtio, React で実現する共同編集アプリケーション - ROUTE06 Tech Blog
Yjsは、リアルタイム共同編集を実現するためのアルゴリズムとデータ構造を提供するフレームワークです。Notion や Figma のように、1 つのコンテンツを複数人で同時に更新する体験を提供することができます。 Y.Map, Y.Array, Y.Text といった共有データ型を提供し、それらは JavaScript の Map や Array のように利用できます。さらにそのデータに対する変更は他のクライアントに自動的に配布・同期されます。 Yjs は Conflict-free Replicated Data Types (CRDT) と呼ばれるアルゴリズムの実装であり、複数人が同時にデータを操作してもコンフリクトが発生せず、最終的に全てのクライアントが同じ状態に到達するように設計されています。 クイックスタート Y.Map がクライアント間で自動的に同期されるコード例を見てみましょ
Developers are increasingly relying on AI coding assistants to accelerate our daily workflows. These tools can autocomplete functions, suggest bug fixes, and even generate entire modules or MVPs. Yet, as many of us have learned, the quality of the AI’s output depends largely on the quality of the prompt you provide. In other words, prompt engineering has become an essential skill. A poorly phrased
Today we are excited to announce the availability of TypeScript 6.0! If you are not familiar with TypeScript, it’s a language that builds on JavaScript by adding syntax for types, which enables type-checking to catch errors, and provide rich editor tooling. You can learn more about TypeScript and how to get started on the TypeScript website. But if you’re already familiar with the language, you ca
WebKit Features in Safari 16.4
Mar 27, 2023 by Patrick Angle, Marcos Caceres, Razvan Caliman, Jon Davis, Brady Eidson, Timothy Hatcher, Ryosuke Niwa, and Jen Simmons ContentsWeb Push on iOS and iPadOSImprovements for Web AppsWeb ComponentsCSSHTMLJavaScript and WebAssemblyWeb APIImages, Video, and AudioWKWebViewDeveloper ToolingWeb InspectorSafari Web ExtensionsSafari Content BlockersNew Restrictions in Lockdown ModeMore Improve
GitHub - modelcontextprotocol/servers: Model Context Protocol Servers
Official integrations are maintained by companies building production ready MCP servers for their platforms. 21st.dev Magic - Create crafted UI components inspired by the best 21st.dev design engineers. 2slides - An MCP server that provides tools to convert content into slides/PPT/presentation or generate slides/PPT/presentation with user intention. ActionKit by Paragon - Connect to 130+ SaaS inte
Cloudflare Workers + Hono ワークショップ - ServerlessDays Tokyo 2023
Cloudflare Workers + Hono ワークショップ 資料はこちら => workshops.yusuke.run #serverlessdays Yusuke Wada 2023-09-24 ServerlessDays Tokyo 2023 workshops.yusuke.run アジェンダ ワークショップについて Workers イントロダクション Hono イントロダクション 基本編 プロキシ編 Web API編 フルスタック編 AI編 Honoをより深く知る その他 1. ワークショップについて 1.1 対象 対象者 Cloudflareでのアプリケーション作成に興味のある方 Honoを使ってみたい方 フロント、バックエンド問いません 前提条件 Wranglerが動く環境をつくっておく npx wrangler が動く JavaScriptに対する知識があるとよい
LogLog Games
The article is also available in Chinese. Disclaimer: This post is a very long collection of thoughts and problems I've had over the years, and also addresses some of the arguments I've been repeatedly told. This post expresses my opinion the has been formed over using Rust for gamedev for many thousands of hours over many years, and multiple finished games. This isn't meant to brag or indicate su
Assessing Claude Mythos Preview’s cybersecurity capabilities April 7, 2026 Nicholas Carlini, Newton Cheng, Keane Lucas, Michael Moore, Milad Nasr, Vinay Prabhushankar, Winnie Xiao Hakeem Angulu, Evyatar Ben Asher, Jackie Bow, Keir Bradwell, Ben Buchanan, David Forsythe, Daniel Freeman, Alex Gaynor, Xinyang Ge, Logan Graham, Kyla Guru, Hasnain Lakhani, Matt McNiece, Mojtaba Mehrara, Renee Nichol, A
Today we’re excited to announce the availability of TypeScript 4.7! If you’re not yet familiar with TypeScript, it’s a language that builds on JavaScript and adds syntax for types. Types help describe what kinds of values you’re working with and what kinds of functions you’re calling. TypeScript can use this information to help you avoid about mistakes like typos, missing arguments, or forgetting
こんにちは！株式会社ｉｉｍｏｎでフロントエンジニアをしている「ひが」です！ 本記事はアドベントカレンダー19日目の記事になります！ 先日夢で「メリークロージャマス！！！」と叫んでスベる夢を見ました。 冬だからか、みなさん冷たかったです（現実では暖かいです） そのようなこともあり、思い切って記事にしてみようと思いました！ どうか、暖かい目で見守っていただけると嬉しく思います！！ 本題 本題ですが、みなさんはクロージャをご存知でしょうか。 MDNよりお言葉を借りると クロージャは、組み合わされた（囲まれた）関数と、その周囲の状態（レキシカル環境）への参照の組み合わせ です！ 初見だと何言ってるかよくわからないですよね。 本記事でざっくり掘っていきますので、是非一緒に見ていただければ幸いです！ ※ 本記事は基本的にMDNの内容に沿う形で進めつつ、たまに脱線したり小ネタを挟んだりします ※ コード
Today we are excited to announce the beta release of TypeScript 4.7! To get started using the beta, you can use npm with the following command: npm install typescript@beta You can also get editor support by Downloading for Visual Studio 2022/2019 Following directions for Visual Studio Code and Sublime Text 3. Here’s a quick list of what’s new in TypeScript 4.7! ECMAScript Module Support in Node.js
In this post I’ll walk through the full implementation of a Virtual DOM in a bit over 200 lines of JavaScript. The result is a full-featured and sufficiently performant virtual DOM library (demos). It’s available on NPM as the smvc package. The main goal is to illustrate the fundamental technique behind tools like React. React, Vue and the Elm language all simplify the creation of interactive web
Today we’re excited to announce the release of TypeScript 5.2! If you’re not familiar with TypeScript, it’s a language that builds on top of JavaScript by making it possible to declare and describe types. Writing types in our code allows us to explain intent and have other tools check our code to catch mistakes like typos, issues with null and undefined, and more. Types also power TypeScript’s edi
Today we are announcing the beta release of TypeScript 6.0! To get started using the beta, you can get it through npm with the following command: npm install -D typescript@beta TypeScript 6.0 is a unique release in that we intend for it to be the last release based on the current JavaScript codebase. As announced last year (with recent updates here), we are working on a new codebase for the TypeSc
Object Structure in JavaScript EnginesFrom a developer's perspective, objects in JavaScript are quite flexible and understandable. We can add, remove, and modify object properties on our own. However, few people think about how objects are stored in memory and processed by JS engines. Can a developer's actions, directly or indirectly, impact performance and memory consumption? Let's try to delve i
All JavaScript and TypeScript Features of the last 3 years
TypeScript as envisioned by Stable DiffusionThis article goes through almost all of the changes of the last 3 years (and some from earlier) in JavaScript / ECMAScript and TypeScript . Not all of the following features will be relevant to you or even practical, but they should instead serve to show what’s possible and to deepen your understanding of these languages. There are a lot of TypeScript fe
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
AST vs. Bytecode: Interpreters in the Age of Meta-Compilation
233 AST vs. Bytecode: Interpreters in the Age of Meta-Compilation OCTAVE LAROSE, University of Kent, UK SOPHIE KALEBA, University of Kent, UK HUMPHREY BURCHELL, University of Kent, UK STEFAN MARR, University of Kent, UK Thanks to partial evaluation and meta-tracing, it became practical to build language implementations that reach state-of-the-art peak performance by implementing only an interprete
Parsing SQL - Strumenta
The code for this tutorial is on GitHub: parsing-sql SQL is a language to handle data in a relational database. If you worked with data you have probably worked with SQL. In this article we will talk about parsing SQL. It is in the same league of HTML: maybe you never learned it formally but you kind of know how to use it. That is great because if you know SQL, you know how to handle data. However
Introduction to Spherical Harmonics for Graphics Programmers
This post requires JavaScript to properly render mathematics (like $\int f(x) dx$, $Y_\ell^m$). It's not likely to work in your browser's "reader mode". On your computer graphics journey, you will eventually run into some paper or code mentioning spherical harmonic functions. They are indeed a very useful tool: with just a few coefficients, they allow us to approximate a given function defined on
【WebGL2】GPU Instancing x Transform Feedback で大量のインスタンスの計算と描画をGPUで行う - KAYAC Engineers' Blog
~ このエントリは 【カヤック】面白法人グループ Advent Calendar 2023 の22日目の記事です。~ こんにちは！ハイパーカジュアルゲームチームの深澤です。 WebGL2において GPU Instancing でメッシュを大量に表示しつつ、Transform Feedback を使ってインスタンスごとの情報計算もGPUに任せてみたいと思います。 ↓ デモはこちらになります。画像かURLから飛ぶことができます デモ: https://takumifukasawa.github.io/webgl-transform-feedback-gpu-instancing/ ↓ リポジトリのURL github.com メッシュ1つあたりの頂点数は24です。描画色は、インスタンスごとの色をふまえて平行光源の拡散光だけ計算しています。 GPU Instancing を使っていて、ドローコー
Today we’re excited to announce our Release Candidate (RC) of TypeScript 4.7! Between now and the stable release of TypeScript 4.7, we expect no further changes apart from critical bug fixes. To get started using the RC, you can get it through NuGet, or use npm with the following command: npm install typescript@rc You can also get editor support by Downloading for Visual Studio 2022/2019 Following
Today we’re excited to announce the release of TypeScript 5.4! If you’re not familiar with TypeScript, it’s a language that builds on top of JavaScript by making it possible to declare and describe types. Writing types in our code allows us to explain intent and have other tools check our code to catch mistakes like typos, issues with null and undefined, and more. Types also power TypeScript’s edi
The Ultimate Interactive JQ Guide Learn how to search, query, and modify JSON data with 25 interactive jq examples and explanations Cover Photo by Pixabay Has this ever happened to you? You’ve just received a massive JSON file that looks like it was designed to confuse you. Or maybe you entered a command, and you got so much JSON that it looks incomprehensible. Important: Level up your jq skills w
Use JSX without ReactNakedJSX is a command-line tool for generating HTML files from JSX. The output is pure HTML and CSS - unless you choose to add your own JavaScript. This is an overview. Please refer to the documentation for a detailed look at each feature. This page was built using NakedJSX. You can look at its source. At a GlanceGenerate static HTML files from JSX by running an npx command. S
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Why XML Comments matter XML is a popular format for storing and sharing data. It was explicitly designed for people and programs to read and write data.[1] From spreadsheets to save states, most modern software and games parse and write XML. XML comments are special notes that parsers should not treat as data. XML comments start with <!-- and end with -->. Technically XML comments must not contain
Today we are excited to announce the availability of TypeScript 5.8 Beta. To get started using the beta, you can get it through npm with the following command: npm install -D typescript@beta Let’s take a look at what’s new in TypeScript 5.8! Checked Returns for Conditional and Indexed Access Types Consider an API that presents a set of options to a user: /** * @param prompt The text to show to a u
Today we are excited to announce the Release Candidate (RC) of TypeScript 6.0! To get started using the RC, you can get it through npm with the following command: npm install -D typescript@rc TypeScript 6.0 is a unique release in that we intend for it to be the last release based on the current JavaScript codebase. As announced last year (with recent updates here), we are working on a new codebase
Look-up-tables, more commonly referred to as LUTs, are as old as Mathematics itself. The act of precalculating things into a row or table is nothing new. But in the realm of graphics programming, this simple act unlocks some incredibly creative techniques, which both artists and programmers found when faced with tough technical hurdles. We’ll embark on a small journey, which will take us from simp
Today we are excited to announce the availability of TypeScript 5.4 Beta. To get started using the beta, you can get it through NuGet, or through npm with the following command: npm install -D typescript@beta Here’s a quick list of what’s new in TypeScript 5.4! Preserved Narrowing in Closures Following Last Assignments The NoInfer Utility Type Object.groupBy and Map.groupBy Support for require() c
MAI-Thinking-1: Building a Hill-Climbing Machine The Microsoft AI Team 1 Abstract Progress in AI is driven not by a single model, but by the ability to continually improve upon the current state of models. Achieving this requires treating model development as a system-level optimization problem, for which the solution is building a hill-climbing machine for rapid improvement. Our process includes
agent loop ���� You are Manus, an AI agent created by the Manus team. You excel at the following tasks: 1. Information gathering, fact-checking, and documentation 2. Data processing, analysis, and visualization 3. Writing multi-chapter articles and in-depth research reports 4. Creating websites, applications, and tools 5. Using programming to solve various problems beyond development 6. Various ta
Today we’re excited to announce our Release Candidate of TypeScript 5.4! Between now and the stable release of TypeScript 5.4, we expect no further changes apart from critical bug fixes. To get started using the RC, you can get it through NuGet, or through npm with the following command: npm install -D typescript@rc Here’s a quick list of what’s new in TypeScript 5.4! Preserved Narrowing in Closur
Reading Time: 9 minutes Phil Karlton has famously said that the two hardest things in computer science are naming things and cache invalidation1. That’s still kinda true in front-end development. Naming stuff is hard, and so is changing a class name when your stylesheet is cached. For quite a few years, I’ve had a gist called “Tiny Rules for How to Name Stuff.” Which is what you think: little tiny
We've talked quite a bit about linting in the past two posts of this series, so I thought it's time to give eslint the proper limelight it deserves. Overall eslint is so flexible, that you can even swap out the parser for a completely different one. That's not a rare scenario either as with the rise of JSX and TypeScript that is frequently done. Enriched by a healthy ecosystem of plugins and prese
Processing Arrays non-destructively: `for-of` vs. `.reduce()` vs. `.flatMap()`
Processing Arrays non-destructively: for-of vs. .reduce() vs. .flatMap() In this blog post, we look at three ways of processing Arrays: The for-of loop The Array method .reduce() The Array method .flatMap() The goal is to help you choose between these features whenever you need to process Arrays. In case you don’t know .reduce() and .flatMap() yet, they will both be explained to you. In order to g
WebKit Features for Safari 26.2
Safari 26.2 is a big release. Packed with 62 new features, this release aims to make your life as a web developer easier by replacing long-standing frustrations with elegant solutions. You’ll find simpler ways to create common UI patterns with just a few lines of HTML or CSS, and no JavaScript — like auto-growing text fields with CSS field-sizing, and buttons that open/close dialogs and popovers w
Short list of C esoterica
Mini-post: Digraphs and Trigraphs | ENOSUCHBLOG C alternative tokens - Wikipedia Why are there digraphs in C and C++? - Stack Overflow Purpose of Trigraph sequences in C++? A brief description of Normative Addendum 1 Designated initializer # These allow you to specify which elements of an object (array, structure, union) are to be initialized by the values following. The order does not matter! str
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
As they’re wont to do, a certain tweet was floating around the interwebs for a while the other week. Recruiters be like: We’re looking for someone who can connect to the database using CSS. It’s been a hell of a long time since I last embarked on a quality shitpost project1, in fact it’s been so long that back then I probably didn’t even have the word shitpost in my vocabulary. To that end, I was
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The Prompt Engineering Playbook for Programmers
Announcing TypeScript 6.0 - TypeScript
Claude Mythos Preview \ red.anthropic.com
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歴史を感じつつ、クロージャで遊んでみた（JavaScript編） - iimon TECH BLOG
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A virtual DOM in 200 lines of JavaScript
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How video games use LUTs and how you can too
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MAI-Thinking-1: Building a Hill-Climbing Machine
Manus tools and prompts
Announcing TypeScript 5.4 RC - TypeScript
A Small Guide for Naming Stuff in Front-end Code
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Why We Use Julia, 10 Years Later
Yes, I can connect to a DB in CSS