Episode Details

News of the week of September 22, 2025: new default option in TS 6.0, Jiti upgrade, and Cloudflare's on a tear. Plus, npm's security roadmap. From the community: Python-style kwargs, running TS on MS-DOS, and running JS on PlayStation.

Chapters

• (00:00) - Welcome to the Show
• (07:42) - News: Take the State of JS Survey 2025
• (08:25) - News: TS 6.0 Will Enable noUncheckedSideEffectImports by Default
• (09:09) - News: Jiti 2.6 is Faster Thanks to RSPack
• (11:14) - News: ECMAScript Proposal for Non-extensibility Applying to Private Fields
• (13:06) - News: ECMAScript Proposal for Array.prototype.pushAll
• (15:00) - News: ECMAScript Proposal for Iterator Chunking
• (16:04) - News: Introducing Cap'n Web, a New RPC System for the Web
• (20:20) - News: Code Mode, Generating TypeScript Clients for MCP Servers
• (25:57) - News: Cloudflare Workers Have Improved Node Compatibility
• (28:24) - News: GitHub's Plan for a Secure NPM Supply Chain
• (33:22) - News: Astro 5.14 Adds Svelte Async Rendering and React 19 Actions
• (34:05) - Community Highlights: Scrimba's Free TS Course
• (34:28) - Community Highlight: Python-style kwargs in TypeScript
• (37:24) - Community Highlight: Porting TypeScript to Run on DOS
• (39:44) - Community Highlight: Running JavaScript on PlayStation
• (41:28) - Community Highlight: Is effect-ts Really Good, Or is it Just Hype?
• (44:19) - Cool Links: Tiny Helpers
• (45:17) - Cool Read: Itch Game Shout-outs
• (45:58) - Cool Tool: Autogenerate HTTPS Domains for Vite Dev Servers
• (47:23) - Cool Link: Find Out If You Have Unclaimed Money or Property
• (49:31) - The Minnesota Long Goodbye

News

• PSA: State of JavaScript 2025
• TS 6.0 will enable "noUncheckedSideEffectImports" by default 🎉 (h/t Rob Palmer)
• Jiti 2.6 – runtime for TS/ESM in Node.js is now using SWC/RSPack
• tc39/proposal-nonextensible-applies-to-private (h/t Rob Palmer)
  • “This breaking change means that if you seal/freeze an object, it cannot later have private fields stamped upon it ❄️”
• DanielRosenwasser/proposal-array-push-all (h/t Rob Palmer)
  • “It lets you append many items into an existing array without running out of stack memory 👍”
• tc39/proposal-iterator-chunking (h/t Rob Palmer)
  • “It lets you make iterators that can chunk & window content”
• Cloudflare: Cap'n Web: a new RPC system for browsers and web servers
• Cloudflare: Code Mode: the better way to use MCP
• Cloudflare: A year of improving Node.js compatibility in Cloudflare Workers (h/t James Snell)
• GitHub: Our plan for a more secure npm supply chain
• Metaframeworks