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Industry News

01/19/2026
A big week for jQuery





















#​769 — January 20, 2026

Read on the Web




JavaScript Weekly








jQuery 4.0 Released — 20 years on from its original release, the ever-popular (in terms of actual usage) library reaches 4.0 with a migration to ES modules (compatible with modern build tools) along with dropping support for IE 10 and older. With jQuery being a popular guest in our newsletters in the early years, it’s fantastic to see it pop back for a quick visit.


Timmy Willison




💡 If you're using jQuery, you'll find jQuery Migrate, an official tool to help you upgrade, useful. jQuery in 2026 is a somewhat legacy choice, though, and you might not need jQuery at all..





Add Excel-like Spreadsheet Functionality to Your JavaScript Apps — SpreadJS is the industry-leading JavaScript spreadsheet for adding advanced spreadsheet features to your enterprise apps. Build finance, analysis, budget, and other apps. Excel I/O, 500+ calc functions, tables, charts, and more. View demos now.


SpreadJS from MESCIUS inc sponsor






Astro is Joining Cloudflare — Big news in the Web framework space as the team behind the popular Astro framework (the beta of v6.0 is now available) is headed to Cloudflare. Few major frameworks are now not under the wing of a larger entity.


Schott and Irvine-Broque




IN BRIEF:





RELEASES:




📖  Articles and Videos








ASCII Characters Are Not Pixels: A Deep Dive Into ASCII Rendering — Alex digs deep into getting ASCII-based graphics rendering just right with JavaScript, complete with examples of the algorithms used and numerous demos. The neatest technical blog post I’ve seen so far this year.


Alex Harri






JavaScript Now a First-Class Citizen in Aspire — Aspire is a Microsoft framework for orchestrating the deployment of distributed apps. Originally just for .NET, Aspire 13 now makes JavaScript a first-class citizen, so you can run Vite and full-stack JS apps with service discovery, telemetry, and production-ready containers.


Microsoft






Breakpoints and console.log Is the Past, Time Travel Is the Future — 15x faster JavaScript debugging than with breakpoints and console.log, supports Vitest, jest, Karma, Jasmine, and more.


Wallaby Team sponsor






Introducing the <geolocation> Element — Chrome 144 introduces a new <geolocation> element for requesting user location data, moving away from a JavaScript-triggered prompt.


Viana, Le, Steiner




📄 Bootstrapping Bun – “My journey running the build system for Bun … without relying on any of its usual binary dependencies — namely itself.” Bradley Walters


📄 Building a Scroll-Driven Dual-Wave Text Animation with GSAP Valentin Descombes


📄 How the Electron Team Improved Window Resize Behavior Niklas Wenzel


📄 How to Learn to Build Apps in 2026 Eric Elliott



🛠 Code & Tools








Starry Night 3.9: GitHub-Like Syntax Highlighting — GitHub’s own syntax highlighter isn’t open source, but this library is a powerful alternative that tries to get as close as it can, with support for hundreds of languages. I’ve put a basic Web demo here to show off how to use it on the Web.


Titus Wormer






Extension.js 3: Browser Extension Development Framework — Create cross-browser extensions without manual build configuration and develop, build, and preview across browsers with a unified workflow. GitHub repo.


Cezar Augusto et al.






Easily Add Image Editing to your Web App — Import pintura, give it an image, and instantly get features like cropping, rotating, and annotation. Try for free today.


Pintura sponsor






React Aria: Adobe's World-Class React Components — React Aria has a fantastic new site and all-new documentation that really sells the entire experience, complete with interactive CSS and Tailwind examples to get started quickly.


Adobe






localspace: Modern localForage-Compatible Storage Toolkit — localForage is/was a popular storage library that wrapped various browser storage APIs with a simple, localStorage-like API. It hasn’t been updated for years, though, and “localspace exists to bridge that gap”.


Michael Lin










📰 Classifieds




🔑 Add API key auth to any JS backend. Clerk handles generation, hashing, scopes, and instant revocation. Free during public beta.



Notion, Dropbox and LaunchDarkly have switched to Meticulous for frontend tests that provide near-exhaustive coverage with zero developer effort. Find out why.



🛠️ Auth0 for AI Agents provides a foundation for developers to build AI agents without compromising security or innovation. Start building.






📢  Elsewhere in the ecosystem



Some other interesting tidbits in the broader landscape:
















01/12/2026
Can we ever fix the web dependency mess?





















#​768 — January 13, 2026

Read on the Web




JavaScript Weekly








Web Dependencies are Broken; Can We Fix Them? — Lea, who has worked at the heart of Web Standards for years, delivers a compelling (and educational) call to action about a problem every JavaScript developer has encountered: why is managing dependencies and introducing them into code so unnecessarily messy and what could we do about it?


Lea Verou






Build Marketing Sites Like Apple — Learn how modern, high-impact marketing sites are built from someone doing it at the highest level. Matias Gonzales, Design Engineer at Vercel, teaches GSAP animation, scroll-driven storytelling, 3D with Three.js, and performance-first techniques used on award-winning sites.


Frontend Masters sponsor




IN BRIEF:





RELEASES:




📖  Articles and Videos





Date is Out, Temporal is In — The Temporal API has been promised as a future API tackling the weaknesses of JavaScript’s Date for many years now, but finally that future is arriving. Mat leans on numerous examples to show off Date's weaknesses and push Temporal’s strengths here.


Mat “Wilto” Marquis




💡 Temporal's browser support still looks weak, but Chrome 144 – rolling out generally this week – brings full support. Temporal Polyfill also offers a stop-gap while native support grows.





How Wrong Can a JavaScript Date Calculation Go? — “the story of an issue that I faced that will be much easier to handle once Temporal is more widespread.”


Phil Nash






Add GitHub, Slack & Google Integrations Without Rebuilding OAuth — WorkOS Pipes handles OAuth flows, token refresh, and storage. Users connect via a widget, your app makes one API call.


WorkOS sponsor






Stop Turning Everything Into Arrays (and Do Less Work Instead) — A post showing off iterator helpers, a broadly supported set of methods for working with Iterator objects as a more efficient way of processing data lazily in an iterative (rather than randomly accessed) fashion.


Matt Smith






How to 'Steal' Any React Component — A look at how to reproduce a component from a production React app without the original source, using React’s internal data structures (via Fiber) and LLMs to reconstruct things.


David Fant




📄 JavaScript's for-of Loops Are Actually Fast Suren Enfiajyan


📄 Why ARM Has a 'JavaScript Instruction' – FJCVTZS, specifically. NotNotP


📄 How I Write Custom Elements with lit-html Dave Samaniego


📄 document.currentScript is More Useful Than I Thought Chris Coyier


📄 What Happened (and What's Happening) to WebAssembly Emnudge



🛠 Code & Tools









memlab 2.0: A Framework for Finding JavaScript Memory Leaks — A testing and analysis framework for identifying memory leaks and optimization opportunities that spawned from Facebook’s own approach to optimizing its main app. Write scenarios, and memlab compares heap snapshots, filters memory leaks, and aggregates the results.


Facebook Open Source






The Time-Series Database That Balances Simplicity and Performance — Stay Postgres-native with automatic partitioning, 95% compression, and continuous aggregates at production scale.


Tiger Data (creators of TimescaleDB) sponsor






Fabric.js 7.1: A Powerful SVG Abstraction Library — Provides an interactive object model on top of the HTML5 canvas to make it easier to work with multiple visual elements. Ideal for the browser but it works with Node too.


Fabric.js






Ohm: A Parsing Toolkit for JavaScript and TypeScript — It’s been a few years since we covered this project and it’s come along a lot since. It’s a library for building PEG-based parsers you can use in interpreters, compilers, analysis tools, etc. and you can even play with its grammar online.


Warth, Dubroy, et al.






Superdiff 3.2: Compares Two Arrays or Objects and Return a Diff — Got two similar objects or arrays and want to see the underlying differences? Superdiff's recent updates boost performance, add support for streamed input and using a worker for more efficient diffing in a separate thread.


antoine






  • JavaScriptKit 0.38 – Swift framework to interact with JavaScript via WebAssembly.




  • 🎵 alphaTab 1.8 – Music notation and guitar tab rendering library.




  • Neo.mjs v11.20 – Multi-threaded application engine for the Web.




  • Monio 0.70.0 – Kyle Simpson's IO monad implementation.




  • Ant Design 6.2 – UI design language and React UI library.




  • xstyled 4.1 – Utility-first CSS-in-JS framework for React.




  • Jint 4.5 – JavaScript interpreter for .NET.









📰 Classifieds




⚡️Add lightning-fast barcode & QR scanning to your web app with STRICH, a lean JS library. Simple, predictable pricing. Free trial and demo!



Only fools write manual tests – modern engineering teams like Notion, Dropbox and Lattice use Meticulous to maintain E2E UI tests covering every edge case of your web app.



🚀 Auth0 for AI Agents is the complete auth solution for building AI agents more securely. Start building today.






📢  Elsewhere in the ecosystem



Some other interesting tidbits in the broader landscape:











01/05/2026
A new JavaScript engine from Fabrice Bellard





















#​767 — January 6, 2026

Read on the Web


🎉 Happy New Year. JavaScript Weekly is now landing in your inboxes on Tuesdays, so here we are! Let's see what 2026 brings.
__
Your editor, Peter Cooper






JavaScript Weekly








The 2025 JavaScript Rising Stars — At the start of each year, Michael rounds up the projects in the JavaScript ecosystem that gained the most popularity on GitHub in the prior year. After a two-year run of topping the chart, shadcn/ui has been pushed down to #3 by n8n and React Bits. This is a fantastic roundup, now in its tenth(!) year, and features commentary from a few industry experts too.


Michael Rambeau et al.






Make Flaky Tests a Last-Year Problem — Meticulous creates and maintains a continuously evolving E2E UI test suite with zero developer effort. Built on Chromium with a deterministic engine, it’s the only testing tool that eliminates flakes. Relied on by Dropbox, Notion, and Lattice.


Meticulous Ai sponsor






MicroQuickJS: A New JavaScript Engine from Fabrice Bellard — Fabrice, one of the world’s most prolific developers well-known for creating FFmpeg, QEMU and QuickJS, is back with a new JavaScript engine targeting embedded systems, and that can run with as little as 10KB of RAM.


Fabrice Bellard




💡 The discussion about MicroQuickJS on Hacker News was particularly rich. Redis's creator, Salvatore Sanfilippo, even noted that Redis would have used JavaScript as its scripting language instead of Lua if this had existed in 2010.



IN BRIEF:





RELEASES:




  • pnpm 10.27 – The alternative, efficient (and increasingly security-focused) package manager gets some tweaks, including a setting to ignore trust policy checks for packages published more than a specified time ago.




  • Ink 6.6 – Use React to build CLI apps, as used by Claude Code, Gemini CLI, and many others.




  • 🎨 Color.js v0.6 – The popular standards-compliant color conversion and manipulation library approaches its eventual 1.0 release.




  • Prisma 7.2, Deno 2.6.4





📖  Articles and Videos





How to Compile JavaScript to C with Static Hermes — The creator of Parcel is porting parts of the project to Rust, but this raises some challenges on interoperating with existing JavaScript plugins, especially without a runtime JS interpreter. What about compiling JavaScript to C libraries that can be called directly? It’s possible!


Devon Govett






🦖 Build a Dinosaur Runner Game with Deno — An ongoing series of posts (part two and three are also available) on the official Deno blog where you get to recreate something akin to Chrome’s Dinosaur Game for yourself.


Jo Franchetti






How CERN Cut Storage by 95% and 40x’d Query Speed with TimescaleDB — Learn how CERN engineers modernized Large Hadron Collider time-series data for performance, scale, and cost efficiency.


Tiger Data (creators of TimescaleDB) sponsor






Fixing TypeScript Performance Problems: A Case Study — A big monorepo-based TypeScript project was suffering sluggish IntelliSense, long type-checking times, and slow builds, but Solomon’s team found some ways to significantly improve things.


Solomon Hawk






Why Object of Arrays (SoA Pattern) Beat Interleaved Arrays — A dive down a JavaScript performance rabbit hole.


Royal Bhati




📄 Brendan Eich Warns Against “Rushed Web UX Over Native” as Windows 11 Leans Harder on WebView2 and Electron Windows Latest


📄 Implementing Streaming JSON in Just 200 Lines of JavaScript Krasimir Tsonev


📄 Signals vs Query-Based Compilers Marvin Hagemeister


📄 The Nine Levels of JavaScript Dependency Hell Andrew Nesbitt


📄 How to Create a Pixel-to-Voxel Video Drop Effect with Three.js and Rapier Junichi Kasahara



🛠 Code & Tools








Schedule-X 3.6: A Material Design Calendar and Date Picker — Available in the form of React/Preact, Vue, Svelte, Angular, or plain JS components. Open source but with a premium version with extra features. GitHub repo.


Tom Österlund






📄 jsPDF 4.0: Client-Side JavaScript PDF Generation — Create tickets, documents, certificates, etc. all on the fly. There’s a live demo, as well as thorough documentation.


Parallax






SurveyJS: JavaScript Libraries for Custom Web Forms — Keep full ownership of your data. Build JSON-driven forms in your app without SaaS limitations.


SurveyJS sponsor






Bruno 3.0: An Open-Source HTTP API Client App — There are a lot of ‘API client’ tools with varying levels of features, but this is open source and entirely built in JavaScript. v3.0 features a complete overhaul of the UI, adds workspaces for grouping things together, and more. GitHub repo.


Bruno Software Inc.










📰 Classifieds




🔑 Let users create their own API keys with Clerk. Built-in UI components, scopes, expiration & revocation. Now in public beta.



Trigger.dev handles queues, retries, and long-running tasks so you can build production-ready agents and TypeScript workflows reliably at scale.






📢  Elsewhere in the ecosystem



Some other interesting tidbits in the broader landscape: