Episode Details

News of the week of August 18, 2025: one of the biggest nightly updates for TS Go, Rspack team announces a new linter, the new minor Bun release is pretty major, and Next.js 15.5 features typed routing . From the community: more learning web dev resources, an exhaustive switch utility for JSX, --strict on by default?, and whether you can really protect your code from clients. Plus, the two fools rant about feature flags.

Chapters

• (00:00) - Welcome to the Show
• (06:32) - News: TypeScript Go Got a Big Nightly Update
• (10:01) - News: Rspack Introduces Rslint
• (13:08) - News: Bun 1.2.21 Got Some Major Upgrades
• (18:10) - News: Deno 2.4.4 Improves Structured Clone Performance
• (19:21) - News: Next.js 15.5 Features Type-safe Routing
• (20:55) - News: Preact 11 Beta is Even Faster with Better Hydration
• (21:27) - News: Angular 20.2 Goes Zoneless
• (23:25) - Community Highlight: Dr. Axel's Learning Web Dev Series
• (25:08) - Community Highlight: A Hopeful PR to Enable --strict By Default
• (26:38) - Library Watch: valleys, Lightweight Runtime Data Validation
• (28:05) - Community Highlight: Hangman Written in TypeScript Types
• (28:59) - Community Highlight: Exhaustive Switch Expressions by Replo
• (31:42) - Discussion: How to Protect Code and Assets in the Browser
• (36:59) - Cool Game: Now THAT'S a Big Dragon!
• (38:05) - Cool Read: Auto-tiling with the Dual Tile Map Technique
• (38:33) - Cool Tip: Using IIFEs for Scratch Variables to Avoid Allocations
• (40:43) - Cool Vid: A Million Blades of Grass Written in LOVR and TypeScript
• (42:31) - The Minnesota Long Goodbye

• Jake Bailey: TSGO had a big nightly update
• Socket.dev: Rspack Introduces Rslint, a TypeScript-First Linter Written in Go (powered by TS Go) (repo)
• Bun 1.2.21 release notes plus blog post on how they achieved a 500x faster postMessage(string)
• Deno 2.4.4 structured clone perf improvement 
• Next.js 15.5 release notes (summary thread)
• Preact 11 sneaks in a beta
• Angular 20.2.0 features a stable zoneless API 

From the Community

• Dr. Axel: 
  • Learning web development: Booleans, comparisons and `if` statements
  • Learning web development: Loops in JavaScript
  • Learning web development: Shells and Node.js
• Daniel Rosenwasser proposed to turn `--strict` on by default 
  • Correction: It was an issue, not a PR :-)
• Lib watch: valleys (ht HN) –  Lightweight, zero-dependency library for validating arbitrary runtime data in TypeScript.
• Hangman in TypeScript types
• Discussion:

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