fidzu : javascript

#​772 - February 10, 2026

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JavaScript Weekly

npmx: A New npm Registry Package Browser - A smooth, fast way to browse packages on the official npm registry. It's certainly fast, smooth, and you see more info up front and center - check out the axios page for example. "We're not replacing the npm registry, but instead providing an elevated developer experience through a fast, modern UI."

npmx

💡 A particularly nifty feature is the ability to compare packages quickly, in areas like size, dependencies, module format, license, etc.

The Most Loved JavaScript Course Year After Year - JavaScript: The Hard Parts is rated 4.92 on average by thousands of developers. Build real mental models for how JavaScript works, from execution context and closures to async behavior and modern language features.

Frontend Masters sponsor

📊 The State of JS 2025 Survey Results - The results of the annual survey are here, compiling the opinions of over 12,000 JavaScript developers into a flurry of charts in areas as diverse as language pain points, frontend framework choices, build tool usage, how much of their code is AI generated, and what non-JS/TS languages they use.

Devographics

ESLint v10.0.0 Released - This long-awaited milestone completes the removal of the legacy eslintrc config system, introduces a new config lookup algorithm that starts from the linted file (great for monorepos), adds JSX reference tracking to fix scope analysis issues, and more.

ESLint Team

IN BRIEF:

• webpack shares its 2026 roadmap. Topics include support for a universal target to compile code to run on numerous runtimes, building TypeScript without loaders, CSS modules without plugins, and more.

• VoidZero shares its January 2026 recap covering updates to Oxlint, Oxfmt, Vitest, and more.

• Deno Deploy is now GA as a platform for easily deploying JS/TS apps to the Web. There's also a 45 minute video where Ryan Dahl shows it off.

• 🤯 Promethee provides UEFI bindings for JavaScript. Write a UEFI bootloader in JavaScript instead of C? Yep.

RELEASES:

• 🤖 Transformers.js v4 Preview - Run ML models in the browser on top of a new WebGPU runtime.

• Bun v1.3.9 - Run multiple package.json scripts concurrently/sequentially with --parallel/--sequential, faster Bun.markdown.react(), regexps get a SIMD boost, and more.

• Ink 6.7 - Build rich terminal apps with React. v6.7 adds concurrent rendering and synchronized updates (less flicker!)

• Ember 6.10 - Cleanups and modernization for the stable, battle-tested framework.

📖 Articles and Videos

It's About to Get a Lot Easier For Your JavaScript to Clean Up After Itself - A fun technical exploration of Symbol.dispose and using, two new features that'll ease many headaches around cleaning up after yourself: closing connections, freeing resources, etc. Just watch out for the Muppets…

Mat Marquis

▶ Evan You on Vite, Rust and the Future of JS Tooling - The Vue.js creator joined the Better Stack podcast to discuss his path from building Vite to founding VoidZero and developing a Rust-based JS toolchain.

Evan You and Better Stack

Debugging a Next.js Production Issue with Sentry Logs, Not Just Errors - Lessons from a Next.js production debugging session where understanding behavior mattered more than stack traces.

Sentry sponsor

🤖 Debugging React with AI: Can It Replace an Experienced Developer? - Nadia rigged up an app laced with subtle bugs, unleashed Claude on it, and… watched it fail to impress.

Nadia Makarevich

📄 Why Inngest Migrated from Next.js to TanStack Start Jacob Heric

📄 Implementing the Temporal Proposal in JavaScriptCore Tim Chevalier (Igalia)

📄 What to Expect in Angular 22 Kelly Vatter (Mescius)

📄 Solid.js Best Practices Brenley Dueck

🛠 Code & Tools

Shovel.js: What If Your Server Were Just a Service Worker? - A full-stack framework and meta-framework built around the Service Worker model, using Web APIs wherever possible to provide a consistent server surface across Node, Bun, and edge runtimes.

Brian Kim

VerifyFetch: Fetch Large Files with Resume and Verification Features - Imagine fetch but with the ability to resume downloads, check you downloaded what you meant to download, and fail fast on any corruption. GitHub repo.

Hamza Ezzaydia

Teach Your AI Coding Agent How to Implement Clerk Authentication - One command installs Clerk Skills for Claude Code, Cursor, Copilot, and more. Your agent learns auth so you ship faster.

Clerk sponsor

🔐 OTPAuth: One-Time Password (HOTP/TOTP) Library - Node, Deno, Bun and browser library to generate and validate TOTP and HOTP one-time passwords used in two-factor auth.

Héctor Molinero Fernández

📺 Shaka Player 5.0: Library for Playing Adaptive Media - Play formats like DASH and HLS in the browser sans plugins. Supports offline store & playback via IndexedDB. (Demos.)

Shaka Project

• Meriyah 7.1 - Long-standing 100% compliant (ES2024), self-hosted JavaScript parser which you can play with here.

• React Grab 1.0 - Tool for selecting components in the browser to feed to agents to edit.

• Downshift 9.3 - Primitives to build WAI-ARIA compliant React autocomplete, combobox & select dropdown components.

• Js_of_ocaml 6.3 - OCaml to JS transpiler.

• VuePDF 2.0 - Render PDFs in Vue 3 apps.

• Lume 3.2 - Static site generator for Deno.

📢 Elsewhere in the ecosystem

• ⭐ Shades of Halftone is Maxime Heckel's grand tour of pixelation, dithering, and the creation of GLSL-powered halftone effects with React Three Fiber. An aesthetic increasingly popular in modern web design and digital art.

• 😬 Heroku, the cloud hosting/PaaS pioneer, has adopted a 'sustaining engineering model', with no new features in the pipeline. The dev community heard the 'death rattle' and migrate off heroku has joined many to-do lists.

• 🎥 If you were overwhelmed by the buzz around using agents to build videos with Remotion, Remotion now has ▶️ a 5 minute tutorial that boils it down to the basics.

• 📗 Here's a preview of the new design for Node.js's official docs. You can file issues if you encounter any problems.

#​771 - February 3, 2026

Read on the Web

JavaScript Weekly

Four Heavyweights Drop Updates

Four stalwarts of the JavaScript ecosystem all shipped notable releases this week, and odds are you're using at least one of them:

• Gatsby v5.16 proves Gatsby, once considered neck-and-neck with Next.js in the React world, is not 'dead'. The headline feature is React 19 support.

• Babel 7 just shipped its final release. "After years in the making, Babel 8 is finally ready," in release candidate form, at least.

• Rspress 2.0 is a major release for the high-performance Rust-powered, but JavaScript-facing, static site generator.

• Lodash 4.17.23 sounds minor, but it's a 'security reset' for the still heavily used utility library and is designed to provide a base for a longer future.

Only Fools Write Tests - Modern engineering teams like Notion, Dropbox, Wiz, and LaunchDarkly use Meticulous to maintain E2E UI tests that cover every edge case of your web app.

Meticulous sponsor

🦀 OpenClaw: The Runaway AI Assistant - An intense week for a new open source TypeScript project: 150k stars on GitHub, hordes buying Mac Minis to run it, two rebrands (it was originally Clawdbot), and an ecosystem of projects the agents use autonomously (e.g. an entire social network). Another example of TypeScript at the heart of the AI boom.

Peter Steinberger

IN BRIEF:

• The popular JSBin collaborative JavaScript pastebin went down for a few days and Remy Sharp shares the war story of what happened.

• 🔒 The OpenJS Foundation has shared an annual report covering its efforts in securing the JS ecosystem.

• Angular is changing components' default change detection strategy.

• Both Astro and Svelte have shared monthly roundups of what's new.

RELEASES:

• Node.js v25.6.0 (Current) - async_hooks can now skip Promise hooks to reduce overhead. Plus, URL parsing now supports Unicode 17.

• jQuery UI 1.14.2 - The legacy UI library gets its first update in over a year and now works with jQuery 4.0.

• Bun v1.3.8 - Say hello to native Markdown parsing.

• Astro 5.17, ESLint 10.0.0-rc2, tRPC v11.9.0, Lexical 0.40.0, Reka UI 2.8 (formerly Radix Vue)

📖 Articles and Videos

⁉️ How Not to Parse Numbers in JavaScript - Why use a proper locale-aware API to parse numbers when you can hand-roll a maze of string splits, separator swaps, and implicit type coercions that silently break on edge cases?

Remy Porter (The Daily WTF)

📉 Node.js 16 to 25 Benchmarked Version-by-Version - The jumps in performance in various areas are striking (with Node 25, especially), with other areas getting more modest gains.

RepoFlow

A Practical Checklist for B2B Enterprise Readiness - Measure gaps in auth, admin UX, security, monitoring, and architecture for landing enterprise customers. Download today!

Descope sponsor

Explicit Resource Management in JavaScript - You can use using for deterministic cleanup, calling Symbol.dispose/asyncDispose at scope exit without try/finally. A small fix for leaks and forgotten teardowns in streams, observers, locks, and similar APIs.

Matt Smith

The History of C# and TypeScript with Anders Hejlsberg - GitHub interviewed the creator of both C# and TypeScript about his career, why TypeScript was created in the first place, some internal Microsoft politics, as well as the ongoing Go port of the TypeScript compiler. There's a video of the full interview, as well as 'seven learnings' boiled down in written form.

GitHub

📄 My Opinionated ESLint Setup for Vue Projects - Packed with examples to pick and choose from. Alexander Opalic

📄 A Scroll-Revealed WebGL Gallery with GSAP, Three.js, Astro and Barba.js - Striking visual image reveal effect with a live demo. Chakib Mazouni

📄 Predicting Math.random() in Firefox Using Z3 SMT-Solver Dennis Yurichev

🎤 Securing npm is Table Stakes Nicholas C. Zakas (Changelog Podcast)

📄 Building a Simple RSS Aggregator with Astro Raymond Camden

🛠 Code & Tools

Heat.js 5.0: A Flexible Heat Map Rendering Solution - Generate customized interactive heatmaps (think GitHub contributions graph), or render heatmaps as lines and bar charts. The site is packed with demos to enjoy. GitHub repo.

William Troup

Building an MCP Server? Don't Roll Your Own Auth - WorkOS AuthKit handles OAuth 2.1 flows so your MCP server just verifies tokens. Control which tools AI agents access.

WorkOS sponsor

🕒 Croner 10.0: Cron-Style Triggers and Evaluation - Trigger functions on any cron schedule using cron syntax. It can also evaluate cron expressions to give you a list of upcoming times. v10.0 brings full OCPS (Open Cron Pattern Specification) 1.4 compliance and even more scheduling options.

Hexagon

🗓️ DayFlow: A Full Calendar Component for React - A React-only feature-rich calendar component with drag-and-drop, multiple views, and all the usual GCal-style richness. Its infinite scrolling feature is nifty. GitHub repo.

DayFlow Contributors

Tsonic: A TypeScript to C# Transpiler - The idea is for creating native executables that run on .NET. I've not tested it as I'm not in that ecosystem but it's an interesting idea.

Jeswin

• 📄 EmbedPDF 2.4 - Framework-agnostic JavaScript PDF viewer. (Demo.)

• JavaScriptKit v0.40 - Swift framework for interacting with JS via WASM.

• StackBlur.js 3.0 - Long-standing Gaussian blur library; now using ESM.

• Knip 5.83 - Finds and fixes unused files, dependencies and exports.

• 📄 jsPDF 4.1 - Generate PDFs directly in JavaScript. (Demo.)

• qrcode.vue 3.8 - Vue.js component to generate QR codes.

• focus-trap 8.0 - Trap focus within a DOM node. (Demo.)

📢 Elsewhere in the ecosystem

Some other interesting tidbits in the broader landscape:

• GitHub is exploring solutions to tackle low-quality contributions, which could include giving you the option to disable PRs entirely or at least restrict them to collaborators. Got opinions? Join the discussion.

• How to throttle individual network requests in Chrome, rather than at a global level. Ideal for testing what happens when your dependencies load very slooooooowwwwwly....

• 🤖 OpenAI has released a desktop version of its agentic-coding Codex app. macOS only for now, though someone used Codex to port itself to Linux.. 😂

• ⚠️ If you're a Windows user using the popular Notepad++ editor, you might want to double check your install as the project suffered a suspected state-sponsored hijack in 2025.

• svelteesp32 is a curious project for embedding Svelte, React, Angular or Vue frontends into ESP32 microcontroller apps.

#​770 - January 27, 2026

Read on the Web

JavaScript Weekly

Introducing LibPDF: PDF Parsing and Generation from TypeScript - LibPDF bills itself as 'the PDF library TypeScript deserves' and supports parsing, modifying, signing and generating PDFs with a modern API in Node, Bun, and the browser. GitHub repo.

Documenso

JavaScript Frameworks - Heading into 2026 - The creator of SolidJS knows more than a thing or two about JS frameworks and has written an annual review of the scene for the past few years. Here, he picks on four areas of evolution, and says it's "an incredibly exciting time to be working on JavaScript frameworks."

Ryan Carniato

Still Writing Tests Manually? - Notion, Dropbox, Wiz, and LaunchDarkly have found a new testing paradigm - and they can't imagine working without it. Built by ex-Palantir engineers, Meticulous autonomously creates a continuously evolving suite of E2E UI tests that delivers near-exhaustive coverage with zero developer effort.

Meticulous AI sponsor

IN BRIEF:

• Lea Verou has celebrated getting two ECMAScript proposals she's championed to stage 1 at TC39 this week: Composable Accessors and Alias Accessors. Rob Palmer also shares more proposal updates from the latest TC39 plenary.

• 🕹️ The creator of Three.js (known as mrdoob) has created a Three.js-powered port of 1996's Quake - here's the source. You can learn more about this project in this X thread.

• 📊 JSBenchmarks.com is a fresh attempt to benchmark several popular JavaScript frameworks. As always with benchmarks, use a critical eye, but the example apps are open to read or contribute to.

RELEASES:

• Node.js 25.5.0 (Current) - Introduces a --build-sea option that simplifies the process of building single executable applications.

• Bun v1.3.7 - The popular runtime updates its JavaScriptCore engine, leading to 35% faster async/await and ARM64 perf improvements. It also lands a new option to generate profiling data in Markdown format for easier sharing, plus native JSON5 and JSONL parsing support.

• Rolldown 1.0 RC - Fast Rust-based bundler with a Rollup-compatible API and esbuild feature parity.

• npm v11.8.0, Emscripten 5.0, Neutralinojs 6.5.0

📖 Articles and Videos

Porting 100k Lines from TypeScript to Rust in a Month - A prolific JavaScript developer ported a Pokémon battle simulator to Rust and shares his experiences and techniques used to work around issues where Claude Code would get bogged down in such a large task. He notes "LLM-based coding agents are such a great new tool" but require "engineering expertise and constant babysitting".

Christopher Chedeau

Building a JavaScript Runtime in One Month - "What if I could build a JavaScript engine small enough to embed in a C program, but complete enough to actually run real code?" The end result is Ant.

theMackabu

Clerk MCP Server for AI Coding Assistants - Connect Claude, Cursor, or Copilot to Clerk's docs. Get working auth code instead of outdated patterns.

Clerk sponsor

Inside Turbopack: Building Faster by Building Less - If you're working on a large codebase, faster hot reloading, better scaling, and persistent caching are all quite desirable. Here's how these things came about in Turbopack.

Shew, Woodruff and Koppers (Vercel)

▶ Bun Explained in 100 Seconds - The popular quick dev explainer channel tackles Bun at a high level.

Fireship

📄 Fixing a 6-Year-Old JavaScript Memory Leak in a Google Cloud Function Matt Zeunert (DebugBear)

📄 Build a Dinosaur Runner Game with Deno, Part 4 - The fourth part of an ongoing series on the official Deno blog. Jo Franchetti

📄 Vercel vs Netlify vs Cloudflare: Serverless Cold Starts Compared Punit Sethi

📄 SPAs are a Performance Dead End Yegor Bugayenko

🛠 Code & Tools

Midscene.js: Remote Control for the Web, Mobile and Desktop Using Vision Models - Provides a way to drive numerous platforms from JavaScript (including iOS) by using various integrations and a vision-capable model so you can write actions in a mixture of JavaScript and natural language and have them performed.

ByteDance Inc.

🔄 Travels 1.0: A Fast, Framework-Agnostic Undo/Redo Library - Allows you to add undo/redo functionality to apps like text editors, drawing tools, or other interactive software. Uses a memory efficient technique only storing changes, rather than full snapshots for each change.

Mutative

The #1 Time-Series Database Built on Postgres - TimescaleDB extends Postgres with hypertables, 95% compression, and continuous aggregates. Start building for free.

Tiger Data sponsor

SonicJS 2.7: Perf-Focused Edge-Native Headless CMS for Cloudflare Workers - A production-ready CMS built specifically for the edge. GitHub repo.

SonicJS Team

🤖 Mastra 1.0: An AI Framework from the Former Gatsby Team - An all-in-one framework (homepage) for building AI-powered apps and agents.

Sam Bhagwat

• Storybook 10.2 - The frontend workshop for building UI components gets some UI and story authoring improvements.

• 🎥 Mediabunny 1.31.0 - Media toolkit for reading, writing, and converting video and audio files, directly in the browser.

• Cheerio v1.2 - Fast, flexible HTML and XML parser and DOM manipulation library.

• eslint-plugin-regexp 3.0 - Plugin for finding regex mistakes and style violations.

• React Timeline Editor 1.0 - Component to build timeline-based editors. (Examples.)

• 📊 Billboard.js 3.18.0 - Flexible JavaScript chart library based on D3.js.

• Feedsmith 2.9 - Feed parser and generator for popular feed formats.

• Typed.js v3.0 - Typing animation library. (GPL licensed.)

• Regle v1.17 - Headless form validation library for Vue.

📢 Elsewhere in the ecosystem

Some other interesting tidbits in the broader landscape:

• OpenAI's Michael Bolin wrote a thorough technical review of how its OpenAI Codex agent works. Invaluable reading for anyone trying to implement their own coding agent or even if you just want to know how they do their thing.

• 🕹️ A group of developers has ported Super Monkey Ball to the Web. Here's the source if you're intrigued - it has surprisingly few dependencies.

• Mystral Native.js is an early-stage experimental runtime for running JavaScript games natively using WebGPU: "Think of it as 'Electron for games' but without Chromium."

• Miss using telnet to connect to remote services? There are still some text-based services you can access.

• How to Favicon in 2026: Three files that fit most needs