技術部の笹田（ko1）と遠藤（mame）です。クックパッドで Ruby (MRI: Matz Ruby Implementation、いわゆる ruby コマンド) の開発をしています。お金をもらって Ruby を開発しているのでプロの Ruby コミッタです。 本日 12/25 に、ついに Ruby 3.0.0 がリリースされました。一昨年、昨年に続き、今年も Ruby 3.0 の NEWS.md ファイルの解説をします。NEWS ファイルとは何か、は一昨年の記事を見てください（なお Ruby 3.0.0 から、NEWS.md にファイル名を変えました）。 プロと読み解く Ruby 2.6 NEWS ファイル - クックパッド開発者ブログ プロと読み解くRuby 2.7 NEWS - クックパッド開発者ブログ Ruby 3.0 は、Ruby にとってほぼ 8 年ぶりのメジャーバージョンア
What's New In DevTools (Chrome 96) | Blog | Chrome for Developers
Preview feature: New CSS Overview panel Use the new CSS Overview panel to identify potential CSS improvements on your page. Open the CSS Overview panel, then click on Capture overview to generate a report of your page’s CSS. You can further drill down on the information. For example, click on a color in the Colors section to view the list of elements that apply the same color. Click on an element
Today we’re excited to announce the release of TypeScript 5.0! This release brings many new features, while aiming to make TypeScript smaller, simpler, and faster. We’ve implemented the new decorators standard, added functionality to better support ESM projects in Node and bundlers, provided new ways for library authors to control generic inference, expanded our JSDoc functionality, simplified con
Go: A Documentary
The historical release notes may helpful for general information: doc/go1release Go Release History doc/go1prerelease Pre-Go 1 Release History doc/go0release Weekly Release History (Before Go 1) Language Design General design/go0initial Rob Pike, Robert Griesemer, Ken Thompson. The Go Annotated Specification. Mar 3, 2008. design/go0spec0 The Go Programming Language. Language Specification. Mar 7,
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
Reverse Engineering the source code of the BioNTech/Pfizer SARS-CoV-2 Vaccine - Bert Hubert's writings
Reverse Engineering the source code of the BioNTech/Pfizer SARS-CoV-2 Vaccine Translations: ελληνικά / عربى / 中文 (Weixin video, Youtube video) / 粵文 / bahasa Indonesia / český / Català / český / Deutsch / Español / 2فارسی / فارسی / Français / עִברִית / Hrvatski / Italiano / Magyar / Nederlands / 日本語 / 日本語 2 / नेपाली / Polskie / русский / Português / Română / Slovensky / Slovenščina / Srpski / Türk
What's New In DevTools (Chrome 94) | Blog | Chrome for Developers
Use DevTools in your preferred language Chrome DevTools now supports more than 80 languages, allowing you to work in your preferred language! Open Settings, then select your preferred language under the Preferences > Language dropdown and reload DevTools. Preferences" width="800" height="494"> Chromium issue: 1163928 New Nest Hub devices in the Device list You can now simulate the dimensions of Ne
yt-dlp オプション一覧及びそのメモ - †MASAYOSHI†のオンラインメモ帳
youtube-dlの開発が止まっておりfork版のyt-dlpに移る事にした。yt-dlpはyoutube-dlのforkであるyoutube-dlcのそのまたforkになる。オリジナルであるyoutube-dlのオプション解説はyoutube-dl オプション一覧及びそのメモ。 2022/06/19更新 2022/09/06更新 OPTIONS -h, --helpヘルプを表示する。 --versionプログラムのVerを表示する。 -U, --update --no-update (default)プログラムのupdateを実行するかどうか。 -i, --ignore-errorsダウンロードエラーを無視する。プレイリストごとダウンロードするような時に使う。エラーで失敗してもダウンロードは成功したとみなされる。 --no-abort-on-error (default) --abor
A few months ago, I set myself the challenge of writing a C compiler in 500 lines of Python1, after writing my SDF donut post. How hard could it be? The answer was, pretty hard, even when dropping quite a few features. But it was also pretty interesting, and the result is surprisingly functional and not too hard to understand! There's too much code for me to comprehensively cover in a single blog
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 start as quick prototypes. The bad ones stay prototypes, but the best ones evolve into production code. Whether you’re writing games, CLI tools, or designing library APIs, prototyping helps tremendously in finding the best approach before
I've found that one of the best ways to understand a new concept is to start from the very beginning. Start from a place where it doesn't exist yet and recreate it yourself, learning in the process not just how it works, but why it was designed the way it was. This isn't a practical guide to async, but hopefully some of the background knowledge it covers will help you think about asynchronous prob
What's New In DevTools (Chrome 95) | Blog | Chrome for Developers
New CSS length authoring tools DevTools added an easier yet flexible way to update lengths in CSS! In the Styles pane, look for any CSS property with length (e.g. height, padding). Hover over the unit type, and notice the unit type is underlined. Click on it to select a unit type from the dropdown. Hover over the unit value, and your mouse pointer is changed to horizontal cursor. Drag horizontally
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
What's New In DevTools (Chrome 90) | Blog | Chrome for Developers
New CSS flexbox debugging tools DevTools now has dedicated CSS flexbox debugging tools! When an HTML element on your page has display: flex or display: inline-flex applied to it, you can see a flex badge next to it in the Elements panel. Click the badge to toggle the display of a flex overlay on the page. In the Styles pane, you can click on the new icon next to the display: flex or display: inlin
とほほのjq入門 - とほほのWWW入門
jqとは インストール サンプルJSON コマンドライン オプション 出力に関するオプション インデント数 (--indent n) タブインデント (--tab) コンパクト出力 (-c | --compact-output) キーソート出力 (-S | --sort-keys) 色つき出力 (-C | --color-output) 色無し出力 (-M | --monochrome-output) RAW出力 (-r | --raw-output) 連結出力 (-j | --join-output) ASCII出力 (-a | --ascii-output) バイナリ出力 (-b | --binary) バッファリング無し出力 (--unbuffered) 入力に関するオプション 啜り入力 (-s | --slurp) RAW入力 (-R | --raw-input) 入力無し (-n
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
Testing a new encrypted messaging app's extraordinary claims
How I accidentally breached a nonexistent database and found every private key in a 'state-of-the-art' encrypted messenger called Converso I recently heard this ad on a podcast: I use the Converso app for privacy because I care about privacy, and because other messaging apps that tell you they're all about privacy look like the NSA next to Converso. With Converso, you've got end-to-end encryption,
WebKit Features in Safari 18.0
ContentsNew in Safari 18Web apps for MacCSSSpatial WebHTMLJavaScriptWeb APICanvasManaged Media SourceWebRTCHTTPSWebGLWeb InspectorPasskeysSafari ExtensionsApple PayDeprecationsBug Fixes and moreUpdating to Safari 18.0Feedback Safari 18.0 is here. Along with iOS 18, iPadOS 18, macOS Sequoia and visionOS 2, today is the day another 53 web platform features, as well as 25 deprecations and 209 resolve
What's New In DevTools (Chrome 100) | Blog | Chrome for Developers
Chrome 100 Here’s to the 100th Chrome version! Chrome DevTools will continue to provide reliable tools for developers to build on the web. Take a moment to click around in the What’s New tab to celebrate the milestones. As usual, you can watch the latest What’s New in DevTools video by clicking on the image. View and edit @supports at rules in the Styles pane You can now view and edit the CSS @sup
Most of my readers are probably familiar with procedural programming, object-oriented programming (OOP), and functional programming (FP). The majority of top programming languages on all of the language popularity charts (like TIOBE) support all three to some extent. Even if a programmer avoided one or more of those three paradigms like the plague, they’re likely at least aware of them and what th
Today we’re excited to announce our Release Candidate of TypeScript 5.0! Between now and the stable release of TypeScript 5.0, we expect no further changes apart from critical bug fixes. This release brings many new features, while aiming to make TypeScript, smaller, simpler, and faster. We’ve implemented the new decorators standard, functionality to better support ESM projects in Node and bundler
Over the course of my Spring 2020 semester at Harvey Mudd College, I developed a self-hosting compiler entirely from scratch. This article walks through many interesting parts of the project. It’s laid out so you can just read from beginning to end, but if you’re more interested in a particular topic, feel free to jump there. Or, take a look at the project on GitHub. Table of contents What the pro
python_modules.pdf
Python3 OpenCV / Pillow / pygame / Eel / PyDub / NumPy / matplotlib / SciPy / SymPy / gmpy2 / hashlib, passlib / Cython / Numba / ctypes / PyInstaller / curses / tqdm / JupyterLab / json / psutil / urllib / zenhan / jaconv Copyright © 2017-2025, Katsunori Nakamura 2025 8 19 Python ‘ .py’ Python Python Windows PSF Python py .py Enter macOS Linux PSF Python python3 .py Enter Anaconda Prompt Python p
What I Worked On
February 2021 Before college the two main things I worked on, outside of school, were writing and programming. I didn't write essays. I wrote what beginning writers were supposed to write then, and probably still are: short stories. My stories were awful. They had hardly any plot, just characters with strong feelings, which I imagined made them deep. The first programs I tried writing were on the
はじめての自然言語処理 Fusion-In-Decoder でクイズに答えるモデルを作る | オブジェクトの広場
今回は Fusion-In-Decoder を使ってクイズに答えるモデルを作ります。以前から Wikipedia 等の外部情報を参照できるテキスト生成モデルを試してみたいと思っていました。Fusion-In-Decoder の発表は 2020 年なので少し前のモデルですが、T5 ベースで手軽に試せるサイズ感ですので、日本語で試してみましょう。 1. はじめに 今回紹介する Fusion-In-Decoder（以下、FiD ）1 は Meta AI (当時は Facebook AI Research) が発表した Open Domain question Answering タスクを解くテキスト生成モデルです。 じつは、以前から外部情報を参照できるテキスト生成モデルを試してみたくて2、 Google の RETRO3 の論文を読んでたんです。 なのですが、外部情報のサイズ感が 1000 B
World’s First MIDI Shellcode Jan 2025 · 45 min read I gained remote code execution via MIDI messages to trick my synth into playing Bad Apple on its LCD. This blog post is about my journey with this reverse engineering project. Final iteration of Bad Apple The beginning I’ve had this Yamaha PSR-E433 synth for a very long time, and a couple of years ago I decided to open it up — partly because it w
18-956 Google LLC v. Oracle America, Inc. (04/05/2021)
1 (Slip Opinion) OCTOBER TERM, 2020 Syllabus NOTE: Where it is feasible, a syllabus (headnote) will be released, as is being done in connection with this case, at the time the opinion is issued. The syllabus constitutes no part of the opinion of the Court but has been prepared by the Reporter of Decisions for the convenience of the reader. See United States v. Detroit Timber & Lumber Co., 200 U. S
Like the blip of an intro on the front page says, my degree was originally in music. My running joke as a web dev is that neither has meaningfully required me to count past 32. And while my main concentration was vocals, I've since realized I should probably stop strictly calling this a nontechnical field, because my actual major was recording — even if I did primarily branch out into this for the
What's New in DevTools (Chrome 117) | Blog | Chrome for Developers
Network panel improvements Override web content locally even faster The local overrides feature is now streamlined, so you can easily mock response headers and web content of remote resources from the Network panel without access to them. To override web content, open the Network panel, right-click a request, and select Override content. If you have local overrides set up but disabled, DevTools en
⚠️ AWSGoat Module 2 のネタバレあり はじめに AWSGost とは 攻撃方法の分類 インフラの料金 ラボ環境の構築 AWSGost リポジトリをフォーク Actions secrets でクレデンシャルを設定 GitHub Actions でデプロイ Module 2の大体の流れ Step 1. SQL Injection 解法 脆弱性があるコード Step 2. File Upload and Task Metadate リバースシェルの用意 待ち受け側 Step 3. ECS Breakout and Instance Metadata 現ユーザの権限を確認 リソースへのアクセスを試行 ケイパビリティを確認 (www-data ユーザ) コンテナ内でroot権限を取得 sudo可能なコマンドを確認 Vim経由でroot権限のシェルを取得 ケイパビリティを確認 (ro
Jun 10, 2024 by Jen Simmons, Jon Davis, Karl Dubost, Anne van Kesteren, Marcos Cáceres, Ada Rose Canon, Tim Nguyen, Sanjana Aithal, Pascoe, and Garrett Davidson ContentsWebXRCSSWeb apps for MacSafari ExtensionsSpatial mediaHTMLMediaWebRTCPasskeysHTTPSJavaScriptWeb APICanvasWebGLWeb InspectorWKWebViewApple PayDeprecationsBug Fixes and moreHelp us Beta TestFeedback The last year has been a great one
Happy New Year: GPT in 500 lines of SQL - EXPLAIN EXTENDED
Translations: Russian This year, the talk of the town was AI and how it can do everything for you. I like it when someone or something does everything for me. To this end, I decided to ask ChatGPT to write my New Year's post: "Hey ChatGPT. Can you implement a large language model in SQL?" "No, SQL is not suitable for implementing large language models. SQL is a language for managing and querying d
MySQL 8.0のCharset utf8mb4での日本語環境で使うCollationで文字比較をしてみる - CLOVER🍀
これは、なにをしたくて書いたもの？ MySQL 8.0のCharset utf8mb4で使えるCollationについて、ちょっと見ておこうかなと思いまして。 具体的には、「MySQL徹底入門 第4版」の「11.2 Collation」に書かれている文字比較およびソートについて自分で 確認してみたいと思います。 MySQL徹底入門 第4版 MySQL 8.0対応 作者:yoku0825,坂井 恵,鶴長 鎮一,とみたまさひろ,深町 日出海,福山 裕大,班石 悦夫,山﨑 由章翔泳社Amazon utf8mb4でのCharsetとCollation MySQLのCharsetとCollationに関するドキュメントは、こちらです。 MySQL :: MySQL 8.0 リファレンスマニュアル :: 10 文字セット、照合順序、Unicode MySQLでは複数のCharset（文字セット）を使う
An iOS zero-click radio proximity exploit odyssey
Posted by Ian Beer, Project Zero NOTE: This specific issue was fixed before the launch of Privacy-Preserving Contact Tracing in iOS 13.5 in May 2020. In this demo I remotely trigger an unauthenticated kernel memory corruption vulnerability which causes all iOS devices in radio-proximity to reboot, with no user interaction. Over the next 30'000 words I'll cover the entire process to go from this ba
What's New In DevTools (Chrome 92) | Blog | Chrome for Developers
CSS grid editor A highly requested feature. You can now preview and author CSS Grid with the new CSS Grid editor! When an HTML element on your page has display: grid or display: inline-grid applied to it, you can see an icon appear next to it in the Styles pane. Click the icon to toggle the CSS grid editor. Here you can preview the potential changes with the on screen icons (e.g. justify-content:
開発環境 Image by Boskampi from Pixabay 統合開発環境は使い慣れているのでEclipse Pleiadesにしました。 Pleiades All in One Eclipseから最新版EclipseのUltimateをダウンロードします。 今のところ使うか分かりませんが、勢いで自宅のマシンにMySQLもインストール。MySQL 8.0.30。 DBに関してはPostgreSQLにしてみようかな？とも思ったのですが、MySQLの方が使い慣れているし、XServerはMySQLに対応しているというのもあって、結局MySQLに。 バージョン管理は仕事であまり使う機会が無かったGithubを勉強を兼ねて導入。 自分一人でのバージョン管理なので、改修→やっぱリバートくらいしか使う事無い様な気もしますけど、流行りには乗っておこうかなーと。 それ以外だとDocker、Rub
In 2006 Microsoft conducted a customer survey to find what new features users want in new versions of Microsoft Office. To their surprise, more than 90% of what users asked for already existed, they just didn't know about it. To address the "discoverability" issue, they came up with the "Ribbon UI" that we know from Microsoft Office products today. Office is not unique in this sense. Most of us ar
What's New in DevTools (Chrome 113) | Blog | Chrome for Developers
Override network response headers You can now override response headers in the Network panel. Previously, you needed access to the web server to experiment with HTTP response headers. With response header overrides, you can locally prototype fixes for various headers, including but not limited to: Cross-Origin Resource Sharing (CORS) Headers Permissions-Policy Headers Cross-Origin Isolation Header
The origin of COVID: Did people or nature open Pandora’s box at Wuhan?
The origin of COVID: Did people or nature open Pandora’s box at Wuhan? Members of the World Health Organization (WHO) team investigating the origins of the COVID-19 coronavirus arrive by car at the Wuhan Institute of Virology on February 3. (Photo by HECTOR RETAMAL/AFP via Getty Images) The COVID-19 pandemic has disrupted lives the world over for more than a year. Its death toll will soon reach th
Functors and Monads For People Who Have Read Too Many "Tutorials" - iRi
Celebrating Over 10 Years Of Being Too Lazy To Pick A Tagline Title is literally true. This may not be the best place to learn about these concepts for the first time, because I'm going to focus on knocking down the misconceptions about them. Then again, it may not be the worst place, for the same reason. I had promised myself I would not add to the pile of functor or monad "tutorials", but I've b
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プロと読み解く Ruby 3.0 NEWS - クックパッド開発者ブログ
Announcing TypeScript 5.0 - TypeScript
Writing a C compiler in 500 lines of Python
Prototyping in Rust | corrode Rust Consulting
Learning Async Rust With Entirely Too Many Web Servers
Announcing TypeScript 5.2 - TypeScript
Implementing Logic Programming
Announcing TypeScript 5.0 RC - TypeScript
Kalyn: a self-hosting compiler for x86-64
World's First MIDI Shellcode
Sonic Pi: Ruby as a Composition Tool
やられAWS環境「AWSGoat」でペンテストを学習 - まったり技術ブログ
News from WWDC24: WebKit in Safari 18 beta
Google Suggest APIでPythonの勉強をしてみました - DMLOG
Lesser Known PostgreSQL Features