fidzu : javascript

#​793 - July 7, 2026

Read on the Web

JavaScript Weekly

Vite+ Beta: A Web Dev Toolchain Behind One Command - Vite+ is the Vite team's 'unified toolchain' that brings Vite, Vitest, Oxlint, and similar tools together under a single vp command, whether for running a dev server, tests, formatting, or bundling.

VoidZero

💡 Vite+ was originally intended to be a commercial project to fund work on Vite and related projects, but was open sourced under the MIT license earlier this year.

Still Writing Tests Manually? Meticulous AI Is Here - Notion, Dropbox, Wiz and LaunchDarkly now use a testing paradigm they can't work without. Built by former Palantir engineers, Meticulous automatically creates an evolving suite of E2E UI tests, delivering exhaustive coverage with no developer effort.

Meticulous sponsor

What's New in ECMAScript 2026 - The 876 page ECMAScript 2026 spec was approved last week, and this round-up covers several main new features that made the cut, from Array.fromAsync to native Uint8Array Base64/Hex conversion, with examples for each. All are already in browsers and runtimes (except Math.sumPrecise in Node) so you can likely use them today.

Pawel Grzybek

IN BRIEF:

• 🕹️ js1024, the annual 1KB code-golf competition, is open for entries. The theme is 'dreaming', and you've got 1,024 bytes to make something neat. Here's last year's winner to get a feel for the caliber.

• There's a TC39 proposal to standardize a code property on Error (long a de-facto Node convention). Its champion, James Snell, hopes to advance it at this month's plenary.

RELEASES:

• vinext 1.0 Beta - Cloudflare's Vite plugin reimplementing Next.js's API surface.

• webpack-dev-server 6.0 - The official webpack dev server with live reloading upgrades to Express 5 and native ESM.

• Dependency Cruiser 18.0 - Tool to validate and graph project dependencies.

• npm 11.18.0, pnpm 11.10

📖 Articles and Videos

Working with AI: A Concrete Example - The creator of htmx reflects on the role of AI in his work with a practical example of using Claude to investigate a bug report. He also touches on how AI fits in with being an 'older developer', a topic I rarely see brought up.

Carson Gross

How Medal Cut Its Electron Frontend Bundle from 40MB to 2.7MB - A gaming metaphor heavy tale of slashing an Electron app's bundle from 40MB+ to 2.7MB using Vite, Rolldown, code splitting, and aggressive dead-code elimination.

Rick Zhang (Medal)

Streaming Real-Time HDR Reflections to Every Device with Miris - Miris built a WebXR car configurator that streams a 1.2GB asset in real-time with HDR reflections across any device.

Miris sponsor

📄 A Guide to Hydration and Rendering Strategies - SSR, streaming, islands, resumability, and RSC, compared. Neciu Dan

📄 WebGL Without a GPU - Useful tips for testing or taking screenshots of WebGL-rendered experiences. Kiko Beats

📄 Understanding TypeScript's Distributive Conditional Types Tejas Bubane

🛠 Code & Tools

Wordgard: A New Rich Text Editor Library from ProseMirror's Creator - With Eloquent JavaScript and ProseMirror under his belt, not many people know more about JavaScript and making good editor controls than Marijn. Modular, supports collaborative editing, and thoughtfully built. Live demo and how to get started.

Marijn Haverbeke

The TypeScript-Native AI Backend for Autonomous Software - Orchestrate agents as typed APIs - then spin up software factories that ship production-grade PRs. Open source.

Agentfield.ai sponsor

Astryx: Meta Open Sources Its Design System - A design system used by 13,000+ apps inside Meta is now open source with 150+ React components, theming options, dark mode, and CLI tooling.

Meta

Driver.js v1.6: Present In-App Tours, Highlights, and Contextual Help - A library for making on-page tours and contextual help systems. It's been around for several years, but is well maintained with numerous demos on the homepage.

Kamran Ahmed

✉️ Upyo 0.5: A Cross-Runtime Email Sending Library - A unified, type-safe API for sending emails both on SMTP and HTTP-based (e.g. SendGrid or Amazon SES) providers from Node, Deno, Bun, or edge function runtimes.

Hong Minhee

📄 Things You No Longer Need JavaScript For - A catalog of patterns modern HTML and CSS can now handle alone. Aaron T. Grogg

• ESLint Plugin Perfectionist 5.10 - For when you're really particular about how things like objects, imports, and types are ordered, whether alphabetically, by length, etc.

• TinyBase 9.0 - Bug fix and stability release for the reactive data store and sync engine backend.

• wavesurfer.js 7.12.10 - Interactive waveform rendering for playing audio.

• React Google Maps 1.9 - Use a Google map as a reactive component.

📢 Elsewhere in the ecosystem

• 🤖 Safari has introduced an MCP server in its latest preview release, providing agents with a way to connect to a Safari window and emulate the user experience while debugging.

• shadcn/ui has switched to Base UI as its default component library (from Radix). Radix isn't going away, but Base UI is recommended for new projects.

• PocketJS is a project that brings a JavaScript VM, Vue Vapor, and Solid UI into an 8MB memory budget, and can, curiously, run on the Sony PSP, as well as in WASM and natively on macOS.

• 📈 Commit History is an online tool that creates charts of a user's GitHub commits over time. A nice addition for your profile README, or check out Sindre Sorhus's chart to see the legendary maintainer's consistency over the years.

• 🎉 PGlite, a WebAssembly build of Postgres for use in JavaScript environments, celebrates reaching 10 million weekly downloads while explaining the use cases and how to get started with it yourself.

#​792 - June 30, 2026

Read on the Web

JavaScript Weekly

Deno 2.9 Released - A huge release for the runtime: deno desktop turns scripts and framework-based projects into native, self-contained desktop apps, quick migration from npm/pnpm/Yarn/Bun lockfiles, big test runner improvements, ~2x faster cold starts, and a target of Node.js 26 compatibility.

Bartek Iwańczuk

44 Recorded PostgreSQL Talks Are Now Available to Watch - Explore 44 talks about PostgreSQL-backed app development, Postgres performance & AI, Postgres 19, Azure HorizonDB and more. All sessions are available on YouTube. Learn directly from Postgres experts at your own pace. Check out the playlist.

Microsoft | AMD sponsor

Iterating Faster on VS Code with TypeScript 7 - How the VS Code team incrementally adopted the Go-based TypeScript 7 compiler (currently in RC) while it was still being built. Type-checking the source went from 36s to 5s, with npm run watch going from 80s to ~20s.

The VS Code Team (Microsoft)

IN BRIEF:

• The second preview release of npm 12 is available for testing. This is worth doing, as Colin McDonnell has already noticed npm 12 hard-errors on unrecognized keys in .npmrc files.

• 🔒 npm now locks 'high impact accounts' (maintainers of the most popular packages) into a 72-hour read-only mode when they change their email or use a 2FA recovery code.

• The Svelte team has just posted the latest monthly Svelte update. In related news, Svelte creator Rich Harris was recently asked ▶️ for his takes on working with AI and Svelte.

RELEASES:

• 🤖 AI SDK v7 - Vercel's SDK that provides an abstraction for building against any AI model provider.

• Node.js v26.4 (Current) adds experimental package map support to resolve packages from a static JSON file instead of walking node_modules.

• Formisch v1 RC - Schema-first, headless type-safe form state library.

• Prettier 3.9, Rspack 2.1, Electron 43, ESLint 10.6, pnpm 11.9

📖 Articles and Videos

Why Drizzle Couldn't Publish New Releases on npm for a Month - As well as explaining why the creators of the popular ORM ran into the problem, Evert shares some tips to see if you're at risk of the same problem, and how to avoid it entirely.

Evert Pot

The Shifting Line Between CSS States and JavaScript Events - A tour of the (more than you'd think) CSS pseudo-classes that can stand in for JS event listeners, plus a look at the experimental/future event-trigger syntax.

Daniel Schwarz

Real-Time Analytics on Your Operational Postgres Table - Polling just hides the lag. TimescaleDB's continuous aggregates keep data fresh on read. Get $1000 credit to start.

Tiger Data (Creators of TimescaleDB) sponsor

Blocking Install Scripts is Not a Silver Bullet - npm v12 won't run install scripts by default, but Ulises argues that only solves part of the supply chain security problem.

Ulises Gascon

Moving Linear from styled‑components to StyleX - A migration away from a runtime CSS-in-JS approach yielded ~30% faster renders when navigating between pages.

Kenneth Skovhus (Linear)

📺 How Tanner Linsley Built TanStack to Outlive Him - A very smoothly produced 15 minute interview with the creator of TanStack. The Build Log

📄 Benchmarking 5 WebSocket Servers for Node.js Irina Nazarova

📄 Handling Mutations with TanStack Query for Vue Marina Mosti

📄 Parsing Arbitrary Dates in Strings with Chrono and a Web Component Raymond Camden

🛠 Code & Tools

Nub: An All-in-One Toolkit That Augments Node.js - While Bun or Deno can replace Node, this project from Zod's creator extends Node with nice-to-haves, like fuller TypeScript support, faster & more secure package installation, better .env handling, and a web-standard Worker.

Colin McDonnell et al.

Gea: A Compiler-First Reactive UI Framework - A UI framework that goes all in on "compile the framework away": no VDOM, JSX transformed into string templates, proxy-based stores, and 'surgical' DOM patching. The big win is tiny build sizes.

Armagan Amcalar

Stop Alt-Tabbing to the Dashboard When CI Breaks - Depot CI's new API and CLI let you query runs, pull logs, and diagnose failures without leaving your terminal.

Depot sponsor

<qr-code> 2.0: Web Component for Generating QR Codes - An easy way to display QR codes in the browser using pure JavaScript. A 13 year old solution that's been modernized and is now ESM only. Live demo.

Eduard Castellano

spartan/ui 1.0: shadcn/ui-Style UI Primitives for Angular - If you're an Angular developer who's ever envied the copy and paste simplicity of shadcn/ui, this is for you.

Robin Goetz

• Wakaru 1.6 - JavaScript decompiler and bundle splitter. Now with even better 'source-like' output, particularly from bundled React apps.

• 🎬 TurboRes 1.0 - Fast Zig/WASM-powered Apple ProRes video decoder for JS environments. From the creator of Mediabunny.

• 📊 ngx-charts 24.0 - Declarative charting framework for Angular. Interactive demo.

• GopherJS 1.21.0 - A Go to JavaScript transpiler. Now supporting up to Go 1.21.13.

• whatwg-url 17.0 - JS implementation of the WHATWG URL Standard. Demo.

📢 Elsewhere in the ecosystem

• 📊 Frank Denis wanted to see the performance of WebAssembly runtimes in 2026 and pitted nine options against one another, including Bun and Node/V8's options.

• GitHub is continuing with efforts to make project management less overwhelming in the agentic era. Now you can restrict issue creation to collaborators with write access.

• Meta has ported Flow, the static type checker for its typed dialect of JavaScript, from OCaml to Rust.

• The pnpm project is working on pnpr, an experimental pnpm-compatible npm registry server, written in Rust.

• Git 2.55 has been released with git history fixup for 'fixing up' earlier commits, faster git status on Linux, and more.

• 🐘 Postgres 19 is currently in beta, with the final release expected this September. Craig Kerstiens looks ahead to what's interesting in Postgres 19 for users and developers.

#​791 - June 23, 2026

Read on the Web

JavaScript Weekly

Desktop Apps With deno desktop - Deno 2.9 (or the 'canary' build now) can turn JavaScript projects into self-contained apps on macOS, Windows, and Linux. Unlike Electron, you can opt to use the default OS WebView or a bundled Chromium backend, plus you get cross-compilation and automatic support for apps built on frameworks like Next.js and SvelteKit.

The Deno Project

📉 It's not in the post, but a --compress option gets packaged app sizes down a lot - from 65MB to 19MB in my test with a basic app.

Catch Runtime Bugs Before Your JS PR Merges - Some JavaScript bugs only show up after the app runs. Greptile reviews each PR with full repo context, runs the code in a sandbox, and returns screenshots, logs, and traces as proof of what broke. Use Greptile in GitHub, GitLab, or from your terminal.

Greptile sponsor

Babel 8.0 Released: The JavaScript Transpiler - It's been eight years since Babel 7.0, and despite the rise of tools like SWC and Oxc, weekly downloads of the @babel packages have increased 380x since. v8.0 is a modernization release that goes ESM-only and targets ~ES2023 by default (vs ES5 before).

Babel Team

TypeScript 7.0 Release Candidate - A step closer for the Go-powered TypeScript compiler that promises ~10x faster build performance. (I've seen people on social media getting very excited by this.)

Daniel Rosenwasser (Microsoft)

IN BRIEF:

• Cloudflare has added the ability to create and deploy Workers on 'temporary accounts'. Ostensibly 'for AI agents', but you can use them yourself too, and get a Worker running for 60 minutes with no strings attached.

• TC39 delegate Luca Casonato has made a proposal to add built-in localized time formatting to <time>, akin to GitHub's <relative-time> element.

• 🤖 MDN has introduced an official MCP server to provide better access to MDN's up-to-date JS and frontend docs to coding agents.

• The Bun team has proposed adding shared-memory threads to JavaScriptCore (a more traditional threading approach versus worker threads).

RELEASES:

• ⭐ Vite 8.1 - Adds experimental support for 'bundled dev mode' which radically speeds up dev server startup and full reloads on large apps. Also adds WASM/ESM integration support.

• ⭐ Astro 7.0 - The popular web framework gets faster build times, with .astro compilation and Markdown/MDX processing going through a Rust-powered pipeline. Advanced Routing also gives you full control over the request pipeline.

• pnpm 11.7 and 11.8 - pnpm install gets a --dry-run option, --frozen-store adds support for read-only package stores, and more.

• Node.js v26.3.1 (Current), v24.17.0 (LTS), and v22.23.0 (LTS)

📖 Articles and Videos

How an Underrated Refactor Saved 90% Memory Usage - The tale of how TanStack Table v9 uses less memory than v8 on large tables, thanks to a simple idea: storing methods on shared prototypes instead of creating them for every object. Benchmarks included, plus a pattern other libraries can copy.

Kevin Van Cott (TanStack)

You Already Know Enough JavaScript to Ship a Real Mobile App - Build for iOS and Android from one codebase with React. Expo handles builds, the App Store, and updates.

Expo sponsor

📄 window.showDirectoryPicker Opens Up a Whole New World - Chrome 86+ added a way to let users open a local directory for use by webapps. Steve Harrison

📄 What are Git Worktrees, And Why Should I Use Them? - A decade-old git feature that's seen a boost in the AI agent era. Cassidy Williams (GitHub)

📄 TanStack Start: A Mental Model for Next.js Devs - Maps TanStack Start onto Next.js concepts with side-by-side code comparisons. Adarsha Acharya

🛠 Code & Tools

FullCalendar 7.0: A Full Sized JavaScript Calendar - A Google Calendar-style experience for your own apps. Works with React, Vue and Angular (v7.0 adds Angular 22 support), but can be used with plain JavaScript. Here's a demo where you can play with the themes and styling approaches. MIT licensed with commercial extensions.

FullCalendar LLC

🤖 Eve: Like Next.js, But for Building Agents - A new framework from Vercel that provides Next.js-esque structure for building AI-powered agents using TypeScript and Markdown.

Vercel

Your Charts Endpoint Doesn't Need a Second Database - It's the query behind it, not the render. TimescaleDB extends Postgres for analytics. Get $1000 credit to start.

Tiger Data (creators of TimescaleDB) sponsor

ForesightJS 4: Predictive User Intent Library for the Web - Predicts intent from pointer and keyboard cues to prefetch content before it's needed for a snappier user experience. v4.0 adds official React and Vue packages with a declarative <Foresight> component in v4.2.

ForesightJS, Inc.

Prop For That: What JS Knows, Now CSS Knows - Provides CSS with access to values you'd often need JS to provide (e.g. pointer position, time, a slider's value). Add attributes to HTML and live values show up as custom properties, bridging the JS-CSS gap. The demo page is neat.

Adam Argyle

Kage: Shadow a Website for Offline Viewing - A tool to clone a site and serve it up for offline viewing. The difference vs "Save As" is it handles JS-rendered sites by saving the DOM using a headless browser. Repo.

Duc-Tam Nguyen

goja: An ECMAScript/JavaScript Engine in Pure Go - A mature JavaScript engine for adding scripting functionality to Go apps without CGo/V8.

Dmitry Panov

• Anime.js 4.5 - The powerful animation engine adds adapters to support animating non-DOM objects like Three.js meshes or a canvas context.

• Ink 7.1 - The popular TUI renderer adds suspendTerminal() for temporarily handing the terminal over to a child process (like an editor).

• Nuxt UI 4.9 - The Vue UI library improves its calendar component, adds uniform focus styles, and adds useTour for driving guided tours.

• Nx 23.0 - The monorepo tool's yearly major. Now nx migrate can hand migrations off to AI agents.

• ☀️ SunCalc 2.0 - Calculate the position and phase of the Sun and Moon.

📢 Elsewhere in the ecosystem

• A developer code-golfed a signal implementation to just 33 bytes (above). I had to stare at it for a solid minute before it clicked, but mercifully, a Redditor breaks down exactly what's going on.

• 🔒 GitHub has released actions/checkout v7 that "refuses common pwn request patterns by default" including refusing to fetch fork pull request code in pull_request_target and workflow_run workflows.

• If you're a GitHub project maintainer getting flooded with PRs, GitHub now has the ability to limit the number of PRs any single user can open at once.

• Tim Wehrle stored a website in a favicon. Why? Why not?