パイプライン指向JSON処理プログラミング言語 jq - 檜山正幸のキマイラ飼育記 (はてなBlog)
jq（https://stedolan.github.io/jq/）の紹介では、「JSON処理のワンライナー〈一行野郎〉としてめちゃくちゃ便利！」とアピールするのが定番です。もちろんそれは本当で、「めちゃくちゃ便利！」です。が、実は jq は、ワンライナー記述にとどまらない、かなり本格的なプログラミング言語です。 JSON処理のためのDSL〈Domain Specific Language | 領域特化言語〉なので、汎用言語ではありません。しかし、汎用言語が備えている言語機能の一部（関数定義、モジュールシステムなど）を jq も持っています。また jq は、独特で楽しいプログラミング・パラダイム -- “パイプライン指向”に基づいて設計されています。 この記事では、ワンライナーを超えた jq の使い方と、プログラミング言語としての jq の特徴を紹介します。長い記事になってしまったので、一
はじめに 対象イベント 読み方、使い方 Remote Code Execution(RCE) 親ディレクトリ指定によるopen_basedirのバイパス PHP-FPMのTCPソケット接続によるopen_basedirとdisable_functionsのバイパス JavaのRuntime.execでシェルを実行 Cross-Site Scripting(XSS) nginx環境でHTTPステータスコードが操作できる場合にCSPヘッダーを無効化 GoogleのClosureLibraryサニタイザーのXSS脆弱性 WebのProxy機能を介したService Workerの登録 括弧を使わないXSS /記号を使用せずに遷移先URLを指定 SOME(Same Origin Method Execution)を利用してdocument.writeを順次実行 SQL Injection MySQ
How I built a modern website in 2021September 29th, 2021 — 34 min read For over half of 2021, I worked on a complete rewrite of kentcdodds.com. You're reading this on the rewrite of this site! Are you using dark mode or light mode? Have you signed in and selected your team yet? Have you tried to call into the Call Kent Podcast? This blog post isn't about these and other features of the new site, b
ブラウザで動作する地理空間データ処理ライブラリとして DuckDB-wasm を使い、 SQL を TypeScript で管理する仕組みを作る - newmo 技術ブログ
newmo では、地図データや地理情報を扱う場面が多くあります。 たとえば、タクシーやライドシェアでは、営業区域のような営業していいエリアといった地理的な定義があります。 また、乗り入れ禁止区域のようなタクシーが乗り入れてはいけないエリアといった定義も必要になります。 これらの地理に関する定義は GeoJSON のような地理情報を扱うデータ形式で管理されることが多いです。 しかし、GeoJSONなどの定義をテキストとして手書きするのは困難です。 そのため、地図上に区域を作図するエディタやその定義した区域が正しいかをチェックするような管理ツールが必要です。 管理ツールは、ウェブアプリケーションとして作った方が利用できる環境が広がります。 このような地理情報は一度に扱うデータが多かったり、空間的な計算処理が必要になるため、専用の仕組みを使うことが多いです。 このような技術を、地理情報システム（
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 3.1.0 がリリースされました（Ruby 3.1.0 リリース ）。今年も Ruby 3.1 の NEWS.md ファイルの解説をします。NEWS ファイルとは何か、は以前の記事を見てください。 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 プロと読み解くRuby 3.0 NEWS - クックパッド開発者ブログ 本記事は新機能を解説することもさることながら、変更が入った背景や苦労な
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。 昨日 12/25 に、恒例のクリスマスリリースとして、Ruby 3.2.0 がリリースされました（Ruby 3.2.0 リリース）。今年も Ruby 3.2 の NEWS.md ファイルの解説をします。NEWS ファイルとは何か、は以前の記事を見てください。 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 プロと読み解くRuby 3.0 NEWS - クックパッド開発者ブログ プロと読み解く Ruby 3.1 NEWS -
REST API Design Best Practices Handbook – How to Build a REST API with JavaScript, Node.js, and Express.js
By Jean-Marc Möckel I've created and consumed many API's over the past few years. During that time, I've come across good and bad practices and have experienced nasty situations when consuming and building API's. But there also have been great moments. There are helpful articles online which present many best practices, but many of them lack some practicality in my opinion. Knowing the theory with
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
Announcing TypeScript Native Previews - TypeScript
This past March we unveiled our efforts to port the TypeScript compiler and toolset to native code. This port has achieved a 10x speed-up on most projects – not just by using a natively-compiled language (Go), but also through using shared memory parallelism and concurrency where we can benefit. Since then, we have made several strides towards running on large complex real-world projects. Today, w
IDEs CLion DataGrip DataSpell Fleet GoLand IntelliJ IDEA PhpStorm PyCharm RustRover Rider RubyMine WebStorm Plugins & Services Big Data Tools Code With Me JetBrains Platform Scala Toolbox App Writerside JetBrains AI Grazie Junie JetBrains for Data Kineto Team Tools Datalore Space TeamCity Upsource YouTrack Hub Qodana CodeCanvas Matter .NET & Visual Studio .NET Tools ReSharper C++ Languages & Frame
How modern browsers work
Note: For those eager to dive deep into how browsers work, an excellent resource is Browser Engineering by Pavel Panchekha and Chris Harrelson (available at browser.engineering). Please do check it out. This article is an overview of how browsers work. Web developers often treat the browser as a black box that magically transforms HTML, CSS, and JavaScript into interactive web applications. In tru
One of the most impactful things we’ve worked on in TypeScript 5.0 isn’t a feature, a bug fix, or a data structure optimization. Instead, it’s an infrastructure change. In TypeScript 5.0, we restructured our entire codebase to use ECMAScript modules, and switched to a newer emit target. What to Know Now, before we dive in, we want to set expectations. It’s good to know what this does and doesn’t m
Modern Emacs Typescript Web (React) Config with lsp-mode, treesitter, tailwind, TSX & more - Ovi Stoica
Table of Contents Introduction Part 1: Treesitter for Typescript & TSX LSP Support Completion setup Linter setup LSP Setup Eslint (Optional) Tailwind LSP Server LSP Performance Emacs LSP Booster Structural editing Formatting buffers with Prettier Other resources Conclusion Introduction I've worked within the JS ecosystem for the past 8 years using editors like Webstorm and VSCode, I started using
We are excited to announce the release of the new version of Prettier! We have made the migration to using ECMAScript Modules for all our source code. This change has significantly improved the development experience for the Prettier team. Please rest assured that when using Prettier as a library, you can still use it as CommonJS as well. This update comes with several breaking changes. One notabl
The Fediverse has been a hot topic of discussion lately, with thousands, if not millions, of new users creating accounts on platforms like Mastodon to either move entirely to "the other side" or experiment and learn about this new social network. Today we're introducing Wildebeest, an open-source, easy-to-deploy ActivityPub and Mastodon-compatible server built entirely on top of Cloudflare's Super
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
Hypershell: A Type-Level DSL for Shell-Scripting in Rust | Context-Generic Programming
Discuss on Reddit, Lobsters, and Hacker News. Summary I am thrilled to introduce Hypershell, a modular, type-level domain-specific language (DSL) for writing shell-script-like programs in Rust. Hypershell is powered by context-generic programming (CGP), which makes it possible for users to extend or modify both the language syntax and semantics. Table of Contents Estimated reading time: 1~2 hours
Today we’re excited to announce the release of TypeScript 4.8! If you’re not yet familiar with TypeScript, it’s a language that builds on JavaScript and adds syntax for types. These types let you put your expectations and assumptions into your code, and those assumptions can then be checked by the TypeScript type-checker. This checking can help avoid typos, calling uninitialized values, mixing up
Biome v2—codename: Biotype
We are happy to announce that Biome v2 is officially out! 🍾 Biome v2—codename: Biotype, the first JavaScript and TypeScript linter that provides type-aware linting rules that doesn’t rely on the TypeScript compiler! This means that you can lint your project without necessarily installing the typescript package. With this release, the Core Contributors of the project want to show to the whole comm
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
Today we excited to announce the availability of TypeScript 5.7! If you’re not familiar with TypeScript, it’s a language that builds on JavaScript by adding syntax for type declarations and annotations. This syntax can be used by the TypeScript compiler to type-check our code, and it can also be erased to emit clean, idiomatic JavaScript code. Type-checking is helpful because it can catch bugs in
9 Times the Web Platform Was Influenced by Libraries | Jad Joubran
The web platform didn't invent most of its best APIs. It caught up to them. Libraries did the R&D work in production. They got tested by thousands of developers across thousands of codebases, which is the kind of feedback you can't simulate. They got bug reports. They iterated. And, the patterns that survived eventually became part of the platform itself. If you've been writing JavaScript for a wh
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
Introduction JavaScript Object Notation (JSON) is a simple data interchange format. Almost 15 years ago, we wrote about support for JSON in Go, which introduced the ability to serialize and deserialize Go types to and from JSON data. Since then, JSON has become the most popular data format used on the Internet. It is widely read and written by Go programs, and encoding/json now ranks as the 5th mo
We’re excited to announce the release of Biome 2.3, bringing several features that have been highly requested by the community. This release marks a significant milestone in our journey to support the broader web ecosystem. Once you have upgraded to Biome v2.3.0, migrate your Biome configuration to the new version by running the migrate command: biome migrate --write Full support for Vue, Svelte,
This article is inspired by the talk How the TypeScript compiler compiles◹, you should really check it out for a more in-depth understanding about the TypeScript’s compiling process. At a high level, the TypeScript compiler is a tool to help us analyze and compile the TypeScript code into JavaScript (*.js), as well as some type definition files (*.d.ts) or source maps (*.js.map). If the source fil
The product https://joinmastodon.org Mastodon is a free, open-source social network server based on ActivityPub where users can follow friends and discover new ones. On Mastodon, users can publish anything they want: links, pictures, text, and video. All Mastodon servers are interoperable as a federated network. Open source The project is open source at https://github.com/mastodon/mastodon License
Version 1.108 is now available! Read about the new features and fixes from December. Release date: June 12, 2025 Security update: The following extension has security updates: ms-python.python. Update 1.101.1: The update addresses these issues. Update 1.101.2: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome t
Today we’re excited to announce the release of TypeScript 5.5! 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
RubyKaigi 2023参加レポート 〜エンジニアによるセッション紹介〜 - ZOZO TECH BLOG
こんにちは、バックエンドエンジニアの近です！ 2023/5/11〜13に長野県にて開催されたRubyKaigi 2023でプラチナスポンサーとして協賛し、スポンサーブースを出展しました。 また、今年は我々が運営しているファッションコーディネートアプリ「WEAR」のサービス紹介CMを作成し、RubyKaigiの会場にて放映させていただきました。 technote.zozo.com technote.zozo.com 実際に放映されたCMは以下になります！ www.youtube.com 我々が運営・開発しているファッションコーディネートアプリ「WEAR」のバックエンドはRuby on Railsで開発しています。2013年にVBScriptで作られたシステムですが、2020年頃からVBScriptのシステムをコードフリーズし、リプレイスをはじめました。現在もリプレイスを進めながら、新規の機能
The joy of building a ray tracer, for fun, in Rust. // flurries of latent creativity
TLDR? You can find the code and a bunch of examples on GitHub at dps/rust-raytracer. Over the holiday break, I decided to learn Rust. Rust is a modern systems programming language which has a really interesting type system. The type system can catch broad classes of common programming mistakes - e.g. ensuring memory is accessed safely - at compile time while generating tight, performant machine co
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
When a single-page application needs to fetch data from a remote source, it needs to do so while remaining responsive and providing feedback to the user during an often slow query. Five patterns help with this. Asynchronous State Handler wraps these queries with meta-queries for the state of the query. Parallel Data Fetching minimizes wait time. Fallback Markup specifies fallback displays in marku
Update 1.97.1: The update addresses these security issues. Update 1.97.2: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the January 2025 release of Visual Studio Code. There are many updates in this version that we hope you'll like, some of the key highlights include: Next Edit Suggestions (preview) - Co
Ruby言語の進化を追いかけて意外な構文機能を発見した話（翻訳）｜TechRacho by BPS株式会社
概要 原著者の許諾を得て翻訳・公開いたします。 英語記事: Vignettes on language evolution: discovering an old syntax feature history 原文公開日: 2024/07/01 原著者: zverok 日本語タイトルは内容に即したものにしました。 私がこれまでまったく気づいていなかった、ある構文機能がRubyに存在します。 Rubyの進化をテーマにした前回記事を書きつつ（かつ今後出版する書籍の形式を構想しつつ）、私はRuby言語の歴史をどこまでも深く掘り下げ始めています。同時に他の言語についても調べ、あるソリューションが業界で広まったのがいつだったのか、逆にある手法が流行らなくなったのはいつだったのかを理解しようとしています。 Rubyについては、NEWSやChangelogファイルに目を通したり、変更された時期を独自に構
Prettier 3.6: Experimental fast CLI and new OXC and Hermes plugins! · Prettier
This release includes several important feature additions that we're excited to share with you. First, we're shipping a new experimental high-performance CLI behind a feature flag (--experimental-cli). This CLI was previously only available in prettier@next, but now you can enable it simply by using a flag. We encourage you to try it out and share your feedback! If you are interested in the intern
WebKit Features in Safari 17.2
ContentsHTMLCSSImages and videoJavaScriptWeb APIWeb AppsWebGLPrivacyWeb InspectorFixes for Interop 2023 and moreUpdating to Safari 17.2Feedback Web technology is constantly moving forward, with both big new features and small subtle adjustments. Nowadays, web developers expect web browsers to update multiple times a year, instead of the once or twice a year typical of the late 2000s — or the once
Posted on 2022-05-06 Last updated on 2024-03-13 These are some technical tips for publishing a blog. These have nothing to do with good content, just how to share that content. The recommendations are roughly in order of importance and have rationale for why they are that important. Formats People generally call feeds “RSS Feeds” but usually they aren’t specifically talking about RSS. RSS isn’t th
Today we are excited to announce the availability of TypeScript 5.5 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 5.5! Inferred Type Predicates Control Flow Narrowing for Constant Indexed Accesses Type Imports in JSDoc Regular Expression Syntax Checking Iso
j次のブックマーク
k前のブックマーク
lあとで読む
eコメント一覧を開く
oページを開く
【2020年】CTF Web問題の攻撃手法まとめ - こんとろーるしーこんとろーるぶい
How I built a modern website in 2021
プロと読み解く Ruby 3.1 NEWS - クックパッド開発者ブログ
プロと読み解く Ruby 3.2 NEWS - クックパッド開発者ブログ
The Prompt Engineering Playbook for Programmers
Announcing TypeScript 6.0 - TypeScript
JavaScript Best Practices | The WebStorm Blog
TypeScript's Migration to Modules - TypeScript
Prettier 3.0: Hello, ECMAScript Modules! · Prettier
Welcome to Wildebeest: the Fediverse on Cloudflare
Prototyping in Rust | corrode Rust Consulting
Announcing TypeScript 4.8 - TypeScript
Announcing TypeScript 6.0 Beta - TypeScript
Announcing TypeScript 5.7 - TypeScript
A new experimental Go API for JSON - The Go Programming Language
Biome v2.3—Let's bring the ecosystem closer
04.01.2022 - TypeScript/How the compiler compiles
Mastodon: Ruby on Rails Open Source Web App
May 2025 (version 1.101)
Announcing TypeScript 5.5 - TypeScript
Announcing TypeScript 6.0 RC - TypeScript
Data Fetching Patterns in Single-Page Applications
January 2025 (version 1.97)
RSS Feed Best Practises - Kevin Cox
Announcing TypeScript 5.5 Beta - TypeScript