BunでNode.jsのツールをSingle-file executable binaryにしてバイナリを配布する
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More NPM packages on Cloudflare Workers: Combining polyfills and native code to support Node.js APIs
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Node.jsで型安全な環境変数を扱うスニペット
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Reading and writing Node.js streams
Working with large datasets in Node.js applications can be a double-edged sword. The ability to handle massive amounts of data is extremely handy, but can also lead to performance bottlenecks and memory exhaustion. Traditionally, developers tackled this challenge by reading the entire dataset into memory at once. This approach, while intuitive for smaller datasets, becomes inefficient and resource
Moving from express to fastify, pt 1
Express became the default for new JavaScript projects and has stayed there. In a typical week, express is downloaded from NPM 30 million times. It’s a roaring success in every way. A need for types Express is an expressive framework: like a classic Ruby or JavaScript framework, it lets you color outside the lines using loosely defined objects and types. Query string parameters in express become f
Node.js Security Progress Report: Redefining Security Processes and Key Initiatives | OpenJS Foundation
Node.jsNode.js Security Progress Report: Redefining Security Processes and Key Initiatives Posted On: June 17, 2024Read about the accomplishments for Node.js security for May! Security for Node.js has continued to be a top priority for the OpenJS Foundation and the team has been progressing on the ease and function of security processes. Updates this month:Fixed and triaged 34 reportsTwo security
Mastering Node.js Performance Hooks
Node.js includes a built-in module called performance hooks for precise performance measurement. But why use it when you can simply log timestamps and calculate the difference between two dates? At least because it is precise. The module uses a monotonic clock that allows you, as a user, to make performance measurements and be sure that they are not corrupted. At first, I struggled to understand h
Compare 5 Node Version Managers: Best Choice
Imagine you joined a Node.js project and want to bootstrap it to see how it goes, but you see an error. What is the problem? After spending some time, you find out that Node.js version you’re using on your machine is not the one that the project requires. This is quite a common and annoying situation. I have been there myself. To avoid such troubles, smart people developed tooling called “node ver
Node.js の進化に伴い不要となったかもしれないパッケージたち
tl;dr はじめに 2024 年の 4 月 24 日に Node.js 22 がリリースされました。ESM を 条件付きで require する機能や、--run フラグによる npm スクリプトのパフォーマンス改善などが v22 で追加され、2009 年に Ryan Dahl が Node.js をリリースしてから 15 年が経つ今も、Node.js は進化を続けています[1]。 こうして Node.js 自身が強化されていくにつれ、以前はサードパーティーのパッケージを使用して実現することが一般的であった機能が Node.js のみで実現可能となり、当該パッケージが不要となるような場合があります。冒頭に引用した Ben Holmes の動画では、そのように不要となったパッケージとして dotenv node-fetch chalk mocha が挙げられていますが、この記事では「これら
Node.js — Trip report: Node.js collaboration summit (2024 London)
About twice per year, Node.js contributors and community members get together in an unconference called the Node.js collaboration summit. At the summit, we share knowledge about the project and the ecosystem, brainstorm solutions to technical and non-technical issues, make progress in decision-making discussions, and push forward new initiatives. The first collaboration summit of 2024 was held on
Migrating 500+ tests from Mocha to Node.js | Astro
Over a month ago, we discussed a possible migration to the Node.js test runner. While we were sufficiently happy with Mocha, we are always looking to make our CI jobs faster. Relying on a test runner baked inside our runtime had some advantages for our main monorepo: Two fewer dependencies to install and maintain in our monorepo: mocha and chai. Maintainability: there are more people involved in t
Migrating away from Jest and achieving over 90% reduction in running time
Unfortunately, I’ve been using Jest since 2019. No offense to the Jest team – I’m pretty sure they’re awesome and way smarter than I am, but I wish I had made this move earlier in this project. I’m not talking about UI testing here, so assume everything I’m saying is about server-side JS. If you’re happy with Jest, don’t switch! I’m not trying to convince anyone. I’m just sharing my experience bec
Node.js — Diving into the Node.js Website Redesign
By now you've noticed nodejs.org's fresh new look! We've taken great care in approaching this design with a nod to the past and look to the future. The site has many converging use cases, thousands of pages, and is a daily resource to many. The whole story had some dead ends and detours. But in the end it was a collective effort; coming to life with the contributions of over three dozen contributo
require(esm) in Node.js
Recently I landed experimental support for require()-ing synchronous ES modules in Node.js, a feature that has been long overdue. In the pull request, I commented with my understanding about why it did not happen sooner before this pull request in 2024. This post expands on that comment a bit more. The opinions in this post are my own and reflect my perception of the ESM development in Node.js as
Why Should You Care About Package Metadata Interoperability? | OpenJS Foundation
CommunityWhy Should You Care About Package Metadata Interoperability? Posted On: January 24, 2024 A neutral industry group called the Package Metadata Interoperability Collab Space has formed at the OpenJS Foundation to iterate on the informal standardization of package.json and improve the interoperability of JavaScript package metadata for application developers. The package.json file is the ent
Node.js 2023 Year in An Article
Two months into 2024, I’ve decided to summarize the achievements in the Node.js space from 2023. As always, this list is curated by me, so I may overlook some pull requests due to the vast amount of work completed by Node.js collaborators and areas where I need more context, such as WASI. Node.js is rapidly evolving, and it can be challenging for regular users to stay updated with the latest chang
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