---
title: "Ryan Dahl: 'Why reimplement Node? It works.'"
publication: "JavaScript Weekly"
issue: 806
published_at: "2026-10-13"
canonical_url: "https://javascriptweekly.com/issues/806"
---

Plus Bun's new built-in type checker, Partytown 1.0, and an obscure way to call functions without parentheses.        

#​806 — October 13, 2026 

[Read on the Web](https://javascriptweekly.com/issues/806)  

Together with [![agentfield.ai\](https://res.cloudinary.com/cpress/image/upload/c_fill,g_auto,e_trim,w_1280,h_314/e_make_transparent/co_white,e_outline:10/dy2daidfoserzvblukbv.jpg)](https://agentfield.ai/github/codeaf/?utm_source=javascript&utm_medium=newsletter&utm_campaign=javascript-261013&utm_id=javascript-261013-codeaf&utm_content=codeaf)   

JavaScript Weekly 

[![\](https://res.cloudinary.com/cpress/image/upload/w_1280,e_sharpen:60,q_auto/m1xxxsvconnhew26d4uh.jpg)](https://deno.com/blog/cloudflare)  

[Deno is Joining Cloudflare (But…)](https://deno.com/blog/cloudflare) — Maybe David Bushell [saw the writing on the wall](https://dbushell.com/2026/10/03/deno-to-node/), as the Deno team isn't joining Cloudflare to keep working on _Deno_, but to fold [celld](https://celld.dev/) into `workerd` so Durable Objects can be self-hosted ([more on that here](https://blog.cloudflare.com/deno-joins-cloudflare/)). The Deno runtime will get a final year of official fixes, Deno Deploy closes in six months, and [JSR](https://jsr.io/) moves to Cloudflare's infrastructure. 

Ryan Dahl  

💡 [On Hacker News](https://news.ycombinator.com/item?id=50023277), Ryan Dahl noted that Deno _"has been sucked into the gravity well of Node compatibility"_ before asking: _"Why reimplement Node? It works."_ But what happens [to the JavaScript™ trademark case](https://javascript.tm/), I wonder…?  [![\](https://res.cloudinary.com/cpress/image/upload/c_limit,w_480,h_480,q_auto/copm/f0a41815.png)](https://agentfield.ai/github/codeaf/?utm_source=javascript&utm_medium=newsletter&utm_campaign=javascript-261013&utm_id=javascript-261013-codeaf&utm_content=codeaf) 

[CodeAF: #1 of Ten Coding Harnesses on DeepSWE](https://agentfield.ai/github/codeaf/?utm_source=javascript&utm_medium=newsletter&utm_campaign=javascript-261013&utm_id=javascript-261013-codeaf&utm_content=codeaf) — Ten coding harnesses ran the same open model on 113 real GitHub issues. CodeAF solved the most and paid the least per solved issue: 3.4x less than Claude Code, 4.8x less than OpenCode. A new open-source coding harness built for open models. 

AgentField AI sponsor   

[Bun 1.4.3 Adds `bun check`, a Built-In TypeScript Type Checker](https://bun.com/blog/bun-v1.4.3) — `bun check` is a port of TypeScript 7's checker that reads your `tsconfig.json`, reports the same errors as `tsc` and, Jarred claims, runs 3-6x faster. It plugs into `bun run`/`test`/`build` too. Idle server processes now use far less CPU, and a JavaScriptCore upgrade picks up [numerous perf gains](https://bun.com/blog/bun-v1.4.3#javascriptcore-upgrade). 

Jarred Sumner   

**IN BRIEF:** 

- AWS has launched [Lambda Web Functions](https://aws.amazon.com/blogs/aws/announcing-aws-lambda-web-functions-for-fast-consistent-web-app-performance-anywhere/), which run an ordinary port-listening Node server (Express, Hono, Fastify, etc.) on Lambda with no handler rewrite, billing for active CPU time and separately for memory.
- 📊 The [2026 _Stack Overflow_ Developer Survey results](https://survey.stackoverflow.co/2026) are out (30,903 people took part) with JavaScript the #1 language for the 12th year in a row (and TypeScript at #6).
- 🔒 Despite this week's [fresh stir](https://news.ycombinator.com/item?id=50052814), no malicious Zod release reached npm. [Malicious commits pushed to its repo in September](https://github.com/colinhacks/zod/releases/tag/v4.6.6) were reverted the same day, as [Colin McDonnell explains](https://news.ycombinator.com/item?id=50057591).
- 🔒 [An out-of-band Next.js security release is due tomorrow](https://nextjs.org/blog/upcoming-nextjs-security-update-october-2026).   

**RELEASES:** 

- **Last second addition:** [TanStack Start 1.0](https://tanstack.com/blog/tanstack-start-1-0) has just dropped. Big news for full-stack React and Solid fans! :-)
- 🎉 [Partytown 1.0](https://partytown.qwik.dev/) – A popular way to relocate third-party scripts to run in a Web Worker rather than on the main thread has left beta after five years in development.
- [Marionette 5.0](https://marionettejs.com/news/introducing-marionette-5/) – Six years on, the Backbone-era framework returns with a core free of Backbone, jQuery and Underscore… and they explain why!
- [Bootstrap 6 Alpha](https://blog.getbootstrap.com/2026/10/08/bootstrap-6-alpha/) – An early look at Bootstrap's first major release since 2021, leaning on modern CSS and making its JavaScript plugins ESM-only.
- [Express 5.3.0](https://github.com/expressjs/express/releases/tag/v5.3.0) – A maintenance release worth upgrading to, as patched `qs`, `proxy-addr` and `body-parser` dependencies close five CVEs.  

📖 Articles and Videos 

[![\](https://res.cloudinary.com/cpress/image/upload/w_1280,e_sharpen:60,q_auto/gacrsvr1mipjqdooocro.jpg)](https://lemire.me/blog/2026/10/10/websocket-servers-in-javascript-node-js-bun-and-deno-in-2026/)  

📊 [WebSocket Servers in JavaScript: Node.js, Bun, and Deno](https://lemire.me/blog/2026/10/10/websocket-servers-in-javascript-node-js-bun-and-deno-in-2026/) — In 2023, [Daniel found Bun much faster](https://lemire.me/blog/2023/11/25/a-simple-websocket-benchmark-in-javascript-node-js-versus-bun/) than Node at relaying WebSocket messages, but there was a bug in his Bun server. This new attempt uses a C client/relay as a baseline, and Node 26 now gets close to C latency, ahead of Bun and Deno. 

Daniel Lemire   

[How Sindre Sorhus' Personal Site is Now Made in Swift](https://sindresorhus.com/blog/swift-website) — One of JavaScript's most prolific developers explains how he's dropped Astro and now builds his personal site with Swift, including the styling and markup, with broken links and style typos failing at compile time ([source](https://github.com/sindresorhus/sindresorhus.github.com)). 

Sindre Sorhus   

[Too Many Agent Traces to Read? Find the Ones That Matter, Live Oct 14](https://sentry.io/resources/agent-tracing-series/?utm_source=javascriptweekly&utm_medium=paid-community&utm_campaign=agenttracing-fy27q3-agenttracingseries&utm_content=newsletter-sponsored-link-workshop-2-register) — Bad answers, wrong tool calls, too many traces. See how Sentry engineers find the failures worth fixing. [Register now](https://sentry.io/resources/agent-tracing-series/?utm_source=javascriptweekly&utm_medium=paid-community&utm_campaign=agenttracing-fy27q3-agenttracingseries&utm_content=newsletter-sponsored-link-workshop-2-register). 

Sentry sponsor   

[Tiny Apps with TinyJS](https://www.raymondcamden.com/2026/10/08/tiny-apps-with-tinyjs) — A quick look at [a new way to make tiny JS-powered desktop apps](https://tinyjs.app/) we featured a few weeks ago. 

Raymond Camden   

📄 [Yet Another Way to Invoke Functions Without Parentheses](https://blog.ikaes.de/yet-another-way-to-invoke-functions-without-parentheses/) – There are many ways to invoke arbitrary functions in JavaScript _without_ using parens, but this is a particularly obscure one! bartosz 

📄 [Six Months of Building with Remix 3](https://sergiodxa.com/articles/the-remix-way) – What the post-React Remix (v3 was released earlier this month) is like to work with day to day. Sergio Xalambrí 

📄 [A Visual Notation for React's Parent and Owner Trees](https://julesblom.com/writing/react-visual-notation) – With [a playground](https://julesblom.com/react-trees) that draws them from your code. Jules Blom 

📄 [How to Test an `iframe`'s `postMessage` Handler](https://blog.master.dev/testing-an-iframes-postmessage-handler/) Keshav Malik  

🛠 Code & Tools 

[![\](https://res.cloudinary.com/cpress/image/upload/w_1280,e_sharpen:60,q_auto/yyyvmcrgd42zwknefp1s.jpg)](https://anoma.ly/notes/opencode-2-0/)  

🤖 [OpenCode 2.0: A Big Update for the Open Coding Agent](https://anoma.ly/notes/opencode-2-0/) — A full-featured agentic coding app, built on Bun, that's more akin to _Claude Code_ than [Pi](https://github.com/earendil-works/pi), say. v2.0 overhauls it with background subagents, a 'code mode' to let models script MCP tool calls, and clients for vanilla JS and Effect code to drive it. 

Anomaly / The OpenCode Team  

💡 If you've not given OpenCode a try yet, you can [get started here](https://opencode.ai/).  

[Tamagui 3: One React UI Codebase for Web and Native](https://tamagui.dev/blog/version-three) — A styling system and component kit for sharing UI between React web apps and React Native, with a compiler that keeps things fast on both. v3 adds Tailwind-style props and React Strict DOM support. 

Nate Wienert   

[Mobile AI Infrastructure for Web Devs Who Code with Agents](https://try.expo.dev/3VoRZKA) — Point the agent you use for the web at iOS and Android. Expo takes care of the native builds and the trip to the stores. 

Expo sponsor   

[H3 v2: The UnJS HTTP Framework Rebuilt on Web Standards](https://h3.dev/blog/v2) — The minimal HTTP framework behind Nitro and Nuxt's server layer is now stable in v2, a rewrite around standard `Request` and `Response` so the same app runs on Node, Bun, Deno, Workers, and even in the browser. [Migration guide](https://h3.dev/migration). 

Pooya Parsa   

[Shaders: 190+ WebGPU Effect Components, Now Open Source](https://shaders.com/updates/shaders-is-open-source) — Ripples, glows, and dissolves into ASCII, composed as components rather than written as shader code, for React, Vue, Svelte, Solid, or plain JS. The engine, framework bindings, and [the components themselves](https://shaders.com/docs/components) are now all MIT licensed. 

Simon Le Marchant  

💡 If you like this vibe, [ascii.rest](https://ascii.rest/), which offers _"236 animated ASCII pieces for web pages"_, is also worth a look.  

- [Node.js v26.11.0 (Current)](https://nodejs.org/en/blog/release/v26.11.0) – Adds a `--process-timeout` flag to end a process after a set time, plus virtual table support in `node:sqlite`.
- [Hono 5.0 RC](https://hono.dev/docs/guides/migrating-to-v5) – The web-standards server framework goes ESM-only and moves its runtime adapters into separate packages.
- 🔒 [Handlebars 4.7.10](https://github.com/handlebars-lang/handlebars.js/releases/tag/v4.7.10) – The templating library fixes two critical JavaScript injection flaws affecting releases back to 3.0.
- [he 2.0](https://github.com/mathiasbynens/he) – Robust HTML entity encoder/decoder. First release in eight years, now ESM with named exports.
- [React Aria 1.22](https://react-aria.adobe.com/releases/v1-22-0) – Adds a new [Sheet component](https://react-aria.adobe.com/Sheet).
- [pnpm 12.12](https://pnpm.io/blog/releases/12.12.0)      

📰 Classifieds   

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📢 Elsewhere in the ecosystem  

- In [Fingerprints are the New Cookies](https://royfish.dev/fingerprints-are-the-new-cookies), Roy Fish demonstrates the various ways web pages can assign a unique(ish) identity to you using JavaScript.
- 🤖 Theo Browne set AI agents loose on porting the TypeScript 7 compiler to Rust, and [ts-rust](https://github.com/pingdotgg/ts-rust) is the (very experimental) result.
- 📱 Following Shopify, [Coinbase is moving its app off React Native](https://www.linkedin.com/posts/adamawolf_senior-software-engineer-native-mobile-activity-7511201803389186048-JV6b), saying agents have made building each feature twice cheap enough to go fully native.
- Fancy a retro robot voice in your web experience? [Klattsch](https://crashunited.itch.io/klattsch/devlog/1580425/klattsch-engine-is-free-software-put-it-in-your-game) is a voice synthesizer you can use on the web or from Node.js as an npm package. _Daiiisy, daiiisy…_
- Three years ago we mentioned Linus Groh's Zig-based [Kiesel](https://kiesel.dev/) JavaScript engine. It passed 25% of test262 back then, but [v0.4.0 has landed](https://linus.dev/posts/kiesel-devlog-15/) and it's now at 94.7% (not far behind V8) and supports modern language proposals like await dictionary and numerous iterator proposals.         

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