Episode Details

News of the week of August 4, 2025: WebStorm 2025.2 adds support for TypeScript Go language server (preview), V8 made JSON.stringify supa-supa-fast, and there's a new TypeScript AI conference on the block. From the community: recommended tools and libraries for TS developers, how to prevent ReDOS attacks, and an interview discussing how the JavaScript language evolves.

Chapters

• (00:00) - Welcome to the Show
• (04:52) - News: Erik's High Performance JavaScript Talk is OUT!
• (06:02) - News: WebStorm 2025.2 Features TypeScript Go Language Server Support
• (06:57) - News: V8 Improved JSON Stringify Perf by More than 2X
• (10:54) - News: Bun 1.2.20 Includes Type-level Assertions and TS 5.9 Support
• (12:24) - News: Mastra is Hosting a TypeScript AI Conference
• (19:58) - Community Highlight: How I Built CSS' light-dark() Function in TypeScript by Robert Hameetman
• (21:32) - Community Highlight: Type-Aware Linting with Oxlint
• (22:39) - Tool Watch: Prevent ReDOS Attacks with regolith
• (24:20) - Tool Watch: Filter tsc Errors by File or Folder Using tsef
• (25:57) - Community Highlight: Tools or Libraries That Make Your Life Easier With TypeScript
• (30:16) - Community Highlight: A Fast-paced Lumberjack Game Built with Excalibur.js
• (30:51) - Community Highlight: Daniel Ehrenberg on How JavaScript Evolves by Weekly DevBrew
• (31:10) - Community Highlight: Joke Bailey
• (31:51) - Secret of the Handbook: Indexed Types
• (36:20) - Cool Link: Speeding Up the semver Package
• (38:36) - Cool Link: Enhance.dev, an HTML-first Full Stack Web Framework
• (39:37) - Cool Link: mitata, a Benchmarking Tool That Loves You
• (40:44) - Cool Link: Why contenteditable on Android is the Absolute Worst
• (41:56) - Cool Link: Creating Legal Documents with Markdown
• (43:18) - The Minnesota Long Goodbye

• Erik’s talk is live! JavaScript Blazingly FAST! Lessons from a Game Engine
• WebStorm 2025.2: TypeScript-Go Language Server Support
• V8 engine: How we made JSON.stringify more than twice as fast
• Bun v1.2.20 includes type-level assertions and @bun/types fixes for TS 5.9
• Mastra announces TypeScript AI conference

From the Community

• Robert Hameetman: How I Built CSS's light-dark() in TypeScript 
• Boshen: Oxlint working on type-aware linting with TSGo (experimental)
• JakeRoggenbuck/regolith: Safely write RegExp that are ReDOS-proof
  • PS. Listen to the TypeScript Security episode with Liran Tal
• iostreamer-X/tsef: CLI tool to filter tsc output and only show errors for specific files and directories
  • Could be a good companion to ts-migrating by Jason Yu
• Reddit: What tools and libraries do you use with TypeScript to make your dev life easier?
  • ts-pattern
  • Zod
  • Lefthook

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