The triple dot syntax (`...`) in JavaScript: rest vs. spread
The triple dot syntax (...) in JavaScript: rest vs. spread In JavaScript, the same syntax – triple dots (...) – is used for two different mechanisms: Rest syntax is for receiving data. Spreading is for sending data. This blog post examines how these mechanisms work and why they are not operators. Receiving data: rest syntax # A rest parameter is a special kind of parameter that receives all remai
The State of Frontend 2024
This edition is our most comprehensive survey yet, with 6,288 responses from developers, engineers, and tech enthusiasts across 139 countries. Our community spans the globe, with the largest number of responses coming from countries like the USA, Poland, Germany, and France. We’re also thrilled to have heard from individuals in places as diverse as Andorra, the Maldives, Mauritius, Senegal, and Gu
Navigation API による「JS での画面遷移」と SPA の改善 | blog.jxck.io
Intro 従来の History API を改善する Navigation API の仕様策定と実装が進んでいる。 これは、History API の使いにくかった部分を補うだけではなく、「JS で画面遷移をする」という現状のミッシングピースに取り組み、SPA が抱える多くの問題だけでなく MPA すら改善する可能性がある。 この API の目的と仕様を解説しつつ、実装のメモを残す。 画面遷移と SPA の軌跡 Web は HTML の取得と描画を繰り返す、画面遷移(Navigation)を前提としたアーキテクチャ(のちに SPA からの逆算で MPA と呼ばれる)が基本であり、ブラウザなどの実装もそれに最適化されている。 一方「アプリケーション」の設計手法をそのまま Web に持ち込んだ SPA は、この Navigation によってもたらされる UX の低下を防ぐ部分がある一方、既
Regenerator, AST, and ES6 at Facebook (Tech Talk by Ben Newman)
See the full post here: http://www.hakkalabs.co/articles/ecmascript-6-at-facebook Ben Newman (Engineer, Facebook) has spent many months creating Regenerator which brings support for ES6 style generators to your code. In this popular talk, Ben will talk about what led him to create Regenerator, show us what it can do today, and talk about where it's going in the future. This talk was presented at
イベントループとプロミスチェーンで学ぶJavaScriptの非同期処理
JavaScript の非同期処理は非常に難しく、その難しさの原因は「制御の流れ」が掴みづらいことにあります。 この本では非同期処理を理解するために必要な概念であり、仕組みでもあるイベントループでプロミスチェーンの処理がどのように行われるかをクイズ形式で学ぶことによって、非同期処理の「制御の流れ」を掴めるように訓練します。 知識面については中枢となるイベントループの機構から、実行環境と API、async/await や Promise.all などの一通りの範囲を学習し、最終的には並列化や順序づけて反復処理を行うための制御方法と TypeScript での型注釈までを網羅します。
pzuraq | Four Eras of JavaScript Frameworks
April 25, 2022 Four Eras of JavaScript Frameworks April 25, 2022 I started coding primarily in JavaScript back in 2012. I had built a PHP app for a local business from the ground up, a basic CMS and website, and they decided that they wanted to rewrite it and add a bunch of features. The manager of the project wanted me to use .NET, partially because it’s what he knew, but also because he wanted i
High performance storage for your app: the Storage Foundation API | Web Platform | Chrome for Developers
The web platform increasingly offers developers the tools they need to build fined-tuned high-performance applications for the web. Most notably, WebAssembly (Wasm) has opened the door to fast and powerful web applications, while technologies like Emscripten now allow developers to reuse tried and tested code on the web. To truly leverage this potential, developers must have the same power and fle
GitHub - tdewolff/minify: Go minifiers for web formats
Online demo if you need to minify files now. Binaries of CLI for various platforms. See CLI for more installation instructions. Windows binary from scoop install with scoop install main/minify Python bindings install with pip install tdewolff-minify JavaScript bindings install with npm i @tdewolff/minify .NET bindings install with Install-Package NMinify or dotnet add package NMinify, thanks to Jo
Jest 28: Shedding weight and improving compatibility 🫶 · Jest
Jest 28 is finally here, and it comes with some long requested features such as support for sharding a test run across multiple machines, package exports and the ability to customize the behavior of fake timers. These are just some personal highlights, and we'll be highlighting more in this blog post. Additionally, as announced in the Jest 27 blog post last year, we have removed some packages that
Kaluma
KalumaA tiny JavaScript runtime for RP2040 and RP2350 (Raspberry Pi Pico) Kaluma is a tiny and efficient JavaScript runtime for RP2040 and RP2350 (Raspberry Pi Pico, Pico-w, Pico2, Pico2-W). The main features are: Small footprint. Runs minimally on microcontrollers with 300KB ROM with 64KB RAM. Support modern JavaScript standards (ECMAScript 5/6/6+). Powered by JerryScript. Has internal event loop
New XSS vectors
Published: 20 April 2022 at 14:00 UTC Updated: 20 April 2022 at 14:07 UTC Transition based events without style blocksSo, recently, I was updating our XSS cheat sheet to fix certain vectors that had been made obsolete by browser updates. Whilst looking at the vectors, the transition events stuck in my head. They needed a style block as well as the event: <style>:target {color:red;}</style> <xss id
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GitHub - alexrqs/jsx-render: Lightweight util to render JSX without react
GitHub - thx/resvg-js: A high-performance SVG renderer and toolkit, powered by Rust based resvg and napi-rs.
display-locking/explainers/isvisible.md at main · WICG/display-locking
Release v10.0.0 · mochajs/mocha
GitHub - actualbudget/actual-server: Actual's server
Implementing a plugin
file-system-access/AccessHandle.md at main · WICG/file-system-access
GitHub - privatenumber/minification-benchmarks: 🏃♂️🏃♀️🏃 JS minification benchmarks: babel-minify, esbuild, terser, uglify-js, swc, google closure compiler, tdewolff/minify, oxc-minify
GitHub - nitrojs/nitro: Next Generation Server Toolkit. Create web servers with everything you need and deploy them wherever you prefer.
