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
配列（Array）との比較 JavaScriptにはTypedArrayとは別に配列（Array）の違いを説明します。 ArrayはTypedArrayと比べると柔軟で汎用性が高いです。しかし、Arrayは内部で動的なメモリー管理を行うため、データ処理や転送を高い頻度で行う場合にはオーバーヘッドが発生する可能性があります。 TypedArrayは長さが固定であり、バイト単位のデータ格納が可能なため、メモリーアクセスが効率的に行われます。数値計算においてもバイナリデータを直接操作できるので、高いパフォーマンスが期待できます。また、メモリー領域が連続しているので高速なデータの転送が可能です。 大量のデータを処理する数値計算の場合にはTypedArrayで管理するとデータのまとめた取り回しが楽になります。逆にデータの規模が小さい時は汎用的なArrayが良いでしょう。 TypedArrayは決まっ
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
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
Introducing Ezno
Ezno is an experimental compiler I have been working on and off for a while. In short, it is a JavaScript compiler featuring checking, correctness and performance for building full-stack (rendering on the client and server) websites. This post is just an overview of some of the features I have been working on which I think are quite cool as well an overview on the project philosophy ;) It is still
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
With pen and paper, anyone can write a journal entry, draw a diagram, perform a calculation, or sketch a cartoon. Digital tablets like the iPad or reMarkable can adapt pen and paper into the world of digital media. In doing so, they trade away some of paper’s advantages like cheapness and tangibility. In exchange, we get new computational powers like nondestructive editing and ease of transmission
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
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
Node.js v20 リリースされました。 V8 のバージョンが 11.3 まで上がったことで、いくつかの新しい ECMAScript の機能が使えるようになりました。v フラグが好きなのでうれしいです。 どのバージョンからどの機能が使えるようになったかとか忘れてしまうのでメモしておきます。 String.prototype.isWellFormed / String.prototype.toWellFormed 文字列が Well Formed Code Unit Sequence かどうか判定する isWellFormed と、それに変換する toWellFormed が追加されます。WebIDL の文脈では USV 文字列とか言われますね。 これは WebAssembly みたいな USV 文字列前提の環境とやり取りするときに便利。Babel みたいな JavaScript を解釈
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
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
Whilst the trend is seemingly to rewrite every JavaScript build tool in other languages such as Rust or Go, the current JavaScript-based tools could be a lot faster. The build pipeline in a typical frontend project is usually composed of many different tools working together. But the diversification of tools makes it a little harder to spot performance problems for tooling maintainers as they need
WebGPU is an upcoming Web API that gives you low-level, general-purpose access GPUs. I am not very experienced with graphics. I picked up bits and bobs of WebGL by reading through tutorials on how to build game engines with OpenGL and learned more about shaders by watching Inigo Quilez do amazing things on ShaderToy by just using shaders, without any 3D meshes or models. This got me far enough to
Introduction HTML, the programming language, is a practical, turing-complete[1], stack-based programming language based on HTML, the markup language. It uses elements defined in HTML, the markup language, in order to do computations. To give you a sense of what HTML, the programming langauge, looks like, below is a sample program that prints the values from 1 to 10 to standard out (console.log) A
How a simple Linux kernel memory corruption bug can lead to complete system compromise
In this case, reallocating the object as one of those three types didn't seem to me like a nice way forward (although it should be possible to exploit this somehow with some effort, e.g. by using count.counter to corrupt the buf field of seq_file). Also, some systems might be using the slab_nomerge kernel command line flag, which disables this merging behavior. Another approach that I didn't look
ES2023その2 / ES2023 / ES2022 / ES2021 先日ES2023では新機能が2個しかなかったという話をしましたが、どういうわけか2023/01/30になってからES2023が2個追加されました。 よくわかりませんが、どうやら1月までは前年のESになるみたいです。 なんで。 これらは2023/01/30に行われたTC39ミーティングで決定したようです。 他にIntl.NumberFormat V3もStage4への議題に上がったみたいですが、こちらは却下されたみたいです。 なんでそんなふわふわな言及なのかってまだアジェンダしかないから詳しいことがわからねえんだよ。 Finished Proposals Change Array by copy 配列を破壊せずに操作するメソッドを追加します。 既存の配列操作メソッドは、変更後の値を返すと同時に元の値も変更してしまいます
JavaScript Primer v5.0.0: ES2023の対応/CC BYライセンスに変更/Open Collectiveで支援できるようになりました ECMAScript 2023(ES2023)をサポートしたJavaScript Primer v5.0.0をリリースしました。 Release v5.0.0: ES2023/CC BYライセンスに変更/Open Collective · asciidwango/js-primer JavaScript Primer(jsprimer)は、JavaScriptの文法や機能を一から学べるように書かれている入門書です。 今回のウェブ版のアップデートでは、最新のECMAScriptに対応しました。 jsprimer v5.0.0リリースに合わせて、文章のライセンスをCC BY-NC 4.0からCC BY 4.0へと変更しています。 また、
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
The world after IE left.This page is based on data from mdn/compat-data.Chrome ≧Safari ≧Firefox ≧Edge ≧🔁 ReloadJavaScriptCSSHTMLAPIHTTPSVGWebExtensionsJavaScriptbuiltinsArray[mdn][spec]@@iterator[mdn][spec]@@species[mdn][spec]@@unscopables[mdn][spec]copyWithin[mdn][spec]entries[mdn][spec]fill[mdn][spec]find[mdn][spec]findIndex[mdn][spec]flat[mdn][spec]flatMap[mdn][spec]from[mdn][spec]includes[mdn
Shai Hulud Strikes Again (v2)Another wave of Shai-Hulud campaign has hit npm with more than 500 packages and 700+ versions affected. Update: November 26, 2025 PostHog has published a detailed post mortem describing how one of its GitHub Actions workflows was abused as an initial access vector for Shai Hulud v2. An attacker briefly opened a pull request that modified a script executed via pull_requ
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
ROFL with a LOL: rewriting an NGINX module in Rust2023-02-24 At Cloudflare, engineers spend a great deal of time refactoring or rewriting existing functionality. When your company doubles the amount of traffic it handles every year, what was once an elegant solution to a problem can quickly become outdated as the engineering constraints change. Not only that, but when you're averaging 40 million r
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
Update 1.73.1: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the October 2022 release of Visual Studio Code. There are many updates in this version that we hope you'll like, some of the key highlights include: Search include/exclude folders - Quickly set folders to include/exclude in the tree view. Comma
The simplicity of Prolog
Back to homepage Nowadays the most popular programming languages are Python, Javascript, Java, C++, C#, Kotlin and Ruby, and the average programmer is probably familiar with one or more of these languages. It's relatively easy to switch from one to another (barring any framework specific knowledge that may be needed), since they are all imperative (and for the most part object-oriented) languages,
Large Text Compression Benchmark Matt Mahoney Last update: Mar. 25, 2026. 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 compress
React スプレッド構文をなぜ使うのか モダンなJavaScriptを書いていくうえで欠かせない知識 - Qiita
スプレッド構文をなぜ使うのか 理解のためにはまず破壊的メソッドと非破壊的メソッドを知る必要がある。 破壊的メソッドを見ていく popやpushのような破壊的なメソッドを使うことは最近のJavaScriptではNGとなっている。 破壊的メソッドを避けるためにスプレッド構文が使われると覚えておく。 一般的な破壊的メソッド Array.prototype.push(): 配列の末尾に要素を追加します。 Array.prototype.pop(): 配列の末尾から要素を削除します。 Array.prototype.shift(): 配列の先頭から要素を削除して、残りの要素を前に詰めます。 Array.prototype.unshift(): 配列の先頭に要素を追加し、他の要素を後ろにずらします。 Array.prototype.sort(): 配列の要素をソートします。デフォルトでは破壊的なソート
What's New In DevTools (Chrome 101) | Blog | Chrome for Developers
Import and export recorded user flows as a JSON file The Recorder panel now supports importing and exporting user flow recordings as a JSON file. This addition makes it easier to share user flows and can be useful for bug reporting. For example, download this JSON file. You can import it with the import button and replay the user flow. Apart from that, you can export the recording as well. After r
Big O
Big O notation is a way of describing the performance of a function without using time. Rather than timing a function from start to finish, big O describes how the time grows as the input size increases. It is used to help understand how programs will perform across a range of inputs. In this post I'm going to cover 4 frequently-used categories of big O notation: constant, logarithmic, linear, and
Top 5 MySQL GUI tools in 2021
kevbosaurus for Retool Posted on Oct 26, 2021 • Updated on Oct 27, 2021 • Originally published at retool.com Ahead of Postgres and SQLite, MySQL has been the leading relational database for years. This is corroborated most recently by Stack Overflow's 2021 Developer Survey, in which 50.18 percent of all respondents (73,317) claim to have used MySQL extensively and plan to do so in the coming year.
ECMAScript proposal “Change Array by copy”: four new non-destructive Array methods
ECMAScript proposal “Change Array by copy”: four new non-destructive Array methods This blog post describes the ECMAScript proposal “Change Array by copy” by Robin Ricard and Ashley Claymore. It proposes four new methods for Arrays and Typed Arrays: .toReversed() .toSorted() .toSpliced() .with() The new methods are for Arrays and TypedArrays # This blog post only demonstrates the new methods with
コーポレートサイトをAstro3とmicroCMSとCloudflareをつかってリニューアルしました｜noco株式会社 note編集部
概要nocoの取締役CPOの多田と申します。 今回、gulpとejsでできていたコーポレートサイトを、Astro3を使ってリニューアルしました。 インフラはCloudflareを使い、コンテンツ管理にはmicroCMSを利用しました。CI/CDを完備し、TypeScriptによる素晴らしい開発体験の仕組みができたので共有します。 新しいコーポレートサイト背景弊社のコーポレートサイトは、2022年以前STUDIOを使ってノーコードで作成されていました。 STUDIOは手軽にかっこいいサイトが作れるため重宝していましたが、2022年の前半にいくつかの課題があり、gulpをつかって静的なサイトとしてリニューアルしました。 最大の課題は、「オウンドメディアをサブディレクトリで運用したい」というものでした。この手のサービスは「サブドメイン」を自由に設定することはできますが、リバースプロキシなどを駆使
Bullshit Jobs
Notes: ISBN 978-1-5011-4331-1, ISBN 978-1-5011-4334-2 (ebook); Most names and many identifying characteristics have been changed.; Interior design by Carly Loman; Jacket design by David L Itman To anyone who would rather be doing something useful with themselves. Preface: On the Phenomenon of Bullshit Jobs In the spring of 2013, I unwittingly set off a very minor international sensation. It all be
GitHub - ComfyUI-Workflow/awesome-comfyui: A collection of awesome custom nodes for ComfyUI
ComfyUI-Gemini_Flash_2.0_Exp (⭐+172): A ComfyUI custom node that integrates Google's Gemini Flash 2.0 Experimental model, enabling multimodal analysis of text, images, video frames, and audio directly within ComfyUI workflows. ComfyUI-ACE_Plus (⭐+115): Custom nodes for various visual generation and editing tasks using ACE_Plus FFT Model. ComfyUI-Manager (⭐+113): ComfyUI-Manager itself is also a cu
TypeScriptチートシート(TypeScript(JavaScript)の文法を学び，フロント・バック両方開発できるようにしよう[プログラミング文法,配列操作関数,React,クリーンアーキテクチャ,API]) - Qiita
TypeScriptチートシート(TypeScript(JavaScript)の文法を学び，フロント・バック両方開発できるようにしよう[プログラミング文法,配列操作関数,React,クリーンアーキテクチャ,API])JavaScriptNode.jsTypeScriptDockerReact みなさんTypeScript(JavaScript)でどんなことができるかご存知ですか？初学者向けの言語や大規模開発でよく使う言語だというイメージがあると思います．TypeScript(JavaScript)はフロントの開発からバックの開発までなんでもできる非常に有用な言語です．本記事ではプログラミングをしたことのない人やTypeScript(JavaScript)を触った人のステップアップのためなど幅広い方向けに書きました．また，Node.jsの仕組みやReact,Vue.jsでの応用例やAPI作成
![TypeScriptチートシート(TypeScript(JavaScript)の文法を学び，フロント・バック両方開発できるようにしよう[プログラミング文法,配列操作関数,React,クリーンアーキテクチャ,API]) - Qiita](https://cdn-ak-scissors.b.st-hatena.com/image/square/36cd1d5c3cab16e32c5b9b6b0aab935d5476eee6/backend=imagemagick;height=288;version=1;width=512/https%3A%2F%2Fqiita-user-contents.imgix.net%2Fhttps%253A%252F%252Fcdn.qiita.com%252Fassets%252Fpublic%252Farticle-ogp-background-412672c5f0600ab9a64263b751f1bc81.png%3Fixlib%3Drb-4.0.0%26w%3D1200%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-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%26mark-x%3D142%26mark-y%3D57%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZoPTc2Jnc9NzcwJnR4dD0lNDBKYXZhTGFuZ1J1bnRpbWVFeGNlcHRpb24mdHh0LWNvbG9yPSUyMzFFMjEyMSZ0eHQtZm9udD1IaXJhZ2lubyUyMFNhbnMlMjBXNiZ0eHQtc2l6ZT0zNiZ0eHQtYWxpZ249bGVmdCUyQ3RvcCZzPTBhMGMzZTAwMmI3YzE3NzYzZDk1ODBjMjgyYTk2YWQ3%26blend-x%3D142%26blend-y%3D486%26blend-mode%3Dnormal%26s%3De84738261ad1a28217134fd645a718d4)
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Announcing TypeScript 5.0 - TypeScript
あらためて理解するArrayBuffer - JavaScriptでバイナリデータを扱う方法 - ICS MEDIA
Writing a C compiler in 500 lines of Python
Inkbase: Programmable Ink
Announcing TypeScript 5.2 - TypeScript
Node.js v20 から使える ECMAScript の新機能
Announcing TypeScript 5.0 RC - TypeScript
Speeding up the JavaScript ecosystem - one library at a time
WebGPU — All of the cores, none of the canvas — surma.dev
HTML: The Programming Language
【JavaScript】ES2023の新機能が何故かいまさら追加されていた - Qiita
JavaScript Primer v5.0.0: ES2023の対応/CC BYライセンスに変更/Open Collectiveで支援できるようになりました
News from WWDC24: WebKit in Safari 18 beta
The world after IE left
Shai Hulud Strikes Again (v2) - Socket
Speeding up the JavaScript ecosystem - eslint
ROFL with a LOL: rewriting an NGINX module in Rust
October 2022 (version 1.73)
Large Text Compression Benchmark