News for the week of June 16, 2025: Biome v2 features type-aware linting without TSC, Mocha and Jest both get native ESM and TS upgrades, and Grafana Lab's k6 load testing tool... also can now run native TS tests. From the community: type safety for WebGPU shaders, type narrowing map and indexed key access, and resilient import maps.

Chapters

• (00:00) - Introduction and Personal News

• Biome v2 codename Biotype brings type-aware linting without TSC!
  • You can check out what the noFloatingPromises rule looks like to write type-aware rules
• Mocha 11.7.0 is now compatible with Node’s require(ESM) & type stripping (h/t Rob Palmer)
• After 3 years, Jest 30 is a massive release which includes native ESM and TS support
  • Fun fact: Christoph Nakazawa open sourced his game: https://github.com/nkzw-tech/athena-crisis 
• Grafana k6 celebrates a 1.0 release with native support for TypeScript tests
• Firefox will unflag WebGPU in v141 (Firefox Release Calendar), bringing WGPU support to all major browsers for iOS, Windows, and macOS in the next year or so.
• Astro 5.9 brings Content Security Policy (CSP) support for more secure web app development
• PSA: Deno Homebrew version is behind because of a bug in Rust

From the Community

• Joyee Cheung (Node TSC) talk on Bridging CommonJS and ESM in Node.js
• freeCodeCamp Blog: How Queues Work in TypeScript by Yazdun
• Dr. Axel's Corner: 
  • How TypeScript solved its global `Iterator` name clash
  • TypeScript: checking Map keys and Array indices 
• Resilient Import Maps - Better Theme Development and Beyond (2025) - Shopify 
• Vite’s Creator on a Unified JavaScript Toolchain and Vite+ - The New Stack
• @slack.engineering on Bluesky shares CI improvements by migrating to TSGO
• TypeGPU 0.5.9 release by Iwo Plaza 
  • Video: Iwo Plaza – The Road to Type-Safety on the GPU | RNCK #15
  • Video: Erik's Stream: Learning WebGPU Together 

In Memoriam: Mikeal Rogers

Via Node.js foundation: 

💚 Thank you, Mikeal.

Via Linux Foundation: In Memory of Mikeal Rogers: A Builder of Communities

Cool Stuff

• Promise.try - wrap a function in a promise or execute immediately, avoiding a microtask when not needed
• The Dying Art We All Depend On by David from Raptitude
• The Story of Rollup with Rich Harris (via Matt Jennings) 

Sponsored by Excalibur.js
Excalibur.js is the friendly TypeScript game engine for making 2D web games. Use your TypeScript or JavaScript skills to make games! Excalibur comes out-of-the-box with everything you need to make web games, like physics, sprites, animations, sound effects, input, and particles. Design your assets with tools like Aseprite and Tiled, then load them natively using first-party plugins.

Music
Seahorse Dreams by Kubbi (Spotify)

News for the week of June 9, 2025: Node's type stripping wrapper is released as a standalone package, VoidZero is building a super fast linter, and pnpm introduces experimental virtual store for speeding up package installs. From the community: secure your TS apps, #ROLP, and updated Exploring JS book edition for 2025.

Chapters

• (00:00) - Introduction and Personal News

• Amaro 1.0 release (h/t Rob Palmer) – Node's type stripping wrapper
• Oxlint 1.0 release – TypeScript/JS linter written in Rust from VoidZero
• pnpm 10.12 (h/t socket.dev) 
• TypeFire - a meta programming framework for TS (h/t nxjosh)
• Go 1.25 promises more speed! Good news for TSGO? (Video: Go just got faster.. )
• Apple’s WWDC featured Safari 26 Beta improvements, including WebGPU

From the Community

• Liran Tal - Friend or Foe? TypeScript Security Fallacies 
• Justin: a typescript data validation library utilizing just-in-time function compilation. (h/t Charlotte / cinny.bun.how)
• 🏁 Final Form goes to TypeScript
• Josh Goldberg's If I Wrote a Linter, Part 4: Summary
• Your code: powerful, but not clean. Here's why (Jason Yu)
• Dr. Axel announces release of ES2025 Edition for Exploring JavaScript

Cool Stuff

• Type Buddy (h/t Seb)
• jesselpalmer/node-email-verifier: A Node.js module for verifying email addresses
• Arvid Kahl's Bootstrapped Founder podcast
• The Nathan Barry Show podcast
• Why Use C for UI Library? | Nic Barker 
• Ink, build CLI apps in React
• Josh Goldberg interview on Weekly Devs Brew Podcast
• Alex Lichter of VoidZero on ConTejas Code podcast 

Sponsored by Excalibur.js
Excalibur.js is the friendly TypeScript game engine for making 2D web games. Use your TypeScript or JavaScript skills to make games! Excalibur comes out-of-the-box with everything you need to make web games, like physics, sprites, animations, sound effects, input, and particles. Design your assets with tools like Aseprite and Tiled, then load them natively using first-party plugins.

Music
Seahorse Dreams by Kubbi (Spotify)

News for the week of June 2, 2025: TSC init command gets new, modern defaults, plus new betas drop for Vite 7 and Babel 8. From the community: Learn advanced TS features in 25 mins, and improve the performance of your TS monorepos with secret arcane knowledge.

Chapters

• (00:00) - Introduction and Personal Updates

• tsc --init gets new defaults (h/t Rob Palmer)
• TypeScript 5.9 gets import deferred (h/t Rob Palmer)
• Vitest 3.2 is out!
• Vite 7 beta changelog entry
• Announcing Babel 8 Beta 
• Storybook 9 Bluesky breakdown thread
• TC39 proposals advance
• The IRS Tax Filing Software TurboTax Is Trying to Kill Just Got Open Sourced

From the Community

• The MINT Principle – When to use object-oriented programming in TypeScript (h/t Reddit)
• Learn Advanced TypeScript In 25 Minutes (infer, extends, ternaries) 
• Mike Hartington gave a talk on TypeScript performance
• Live types in a TypeScript monorepo (Colin Hacks)
• Learn Signals by reading TypeScript (Jon Kuperman)

Cool Stuff

• Reverse-engineering Linear's sync engine
• Chrome personal profiler changes (Paul Irish)

Sponsored by Excalibur.js
Excalibur.js is the friendly TypeScript game engine for making 2D web games. Use your TypeScript or JavaScript skills to make games! Excalibur comes out-of-the-box with everything you need to make web games, like physics, sprites, animations, sound effects, input, and particles. Design your assets with tools like Aseprite and Tiled, then load them natively using first-party plugins.

Music
Seahorse Dreams by Kubbi (Spotify)

Jason Yu (ycmjason.codes) joins us to share an open source tool he created to help teams migrate their legacy TSConfig compiler options to modern-day options painlessly and progressively. Learn about his experience implementing strict options on big teams, how it inspired his new tool, and how you can take advantage of it right now!

Chapters

• (00:00) - Meet Jason Yu

• Jason’s Links: https://ycmjason.codes 
• Migrate your TSConfig incrementally: https://github.com/ycmjason/ts-migrating 
• Blog / Video: 7 Modern Use Cases of IIFE 
• ts-migrating Inspiration: https://github.com/allegro/typescript-strict-plugin
• MS Docs: Writing a Language Service Plugin

Sponsored by Excalibur.js
Excalibur.js is the friendly TypeScript game engine for making 2D web games. Use your TypeScript or JavaScript skills to make games! Excalibur comes out-of-the-box with everything you need to make web games, like physics, sprites, animations, sound effects, input, and particles. Design your assets with tools like Aseprite and Tiled, then load them natively using first-party plugins.

Music
Seahorse Dreams by Kubbi (Spotify)

News for the week of May 26, 2025: Angular's 20th release brings DX improvements, Remix replaced by React Router receives reincarnation, and how a lone volunteer brings the much-anticipated Temporal API to Firefox.

Chapters

• (00:00) - Personal News and Updates

• Angular 20 is out! (And it's boring)
• Remix gets revived
• Announcing Rolldown-Vite
• What’s New in Astro – May 2025
• Shipping Temporal (Matt Pocock video, Wes Bos tweet)
• PSA: Stack Overflow Survey 2025 is Open

From the Community

• Josh Goldberg gives Types Beyond TypeScript talk at JS Nation 2025
• Hamilton teaches us about errors as values and how they're 335x faster than throwing new errors (sirhamy)
• Typescripting the technical interview (Richard Towers)
• Angular CanIUse 
• How To Handle Internationalization Like A Senior Dev (Web Dev Simplified)
• Deno Might Have the Exact Tools You’re Missing… 
• TLTSS: a language written in TS types (by skeary.me)
• Library watch: Jason Yu’s ts-migrating tool helps teams migrate their codebase to modern TSConfig settings incrementally!
• Library watch: jsonv-ts validates and produces clean JSON schemas with a Zod-like API (h/t Reddit)
• Library watch: tsargparse is a simple type-safe CLI args parser (h/t Reddit)
• Discuss: Are Deno, Bun, and Node.js competing? (via James Snell)

Cool Stuff

• Kamran
  • The Way Things Work (1994) on Classic Reload
  • David Macauley’s book, Motel of the Mysteries (1979)
• Erik
  • Dan Abramov - Progressive JSON
  • Curated List of JS Grids by Ian Langworth
  • Bippy - Hack into React: 
  • Wookash: Painting with Math | Inigo Quilez 
  • Coding Adventure: Software Rasterizer with Sebastian Lague

Sponsored by Excalibur.js
Excalibur.js is the friendly TypeScript game engine for making 2D web games. Use your TypeScript or JavaScript skills to make games! Excalibur comes out-of-the-box with everything you need to make web games, like physics, sprites, animations, sound effects, input, and particles. Design your assets with tools like Aseprite and Tiled, then load them natively using first-party plugins.

Music
Seahorse Dreams by Kubbi (Spotify)

Creators & Guests

News for the week of May 19, 2025: Try out the new TypeScript Go native port, Zod 4 is out, and no, Deno is not dead.

Chapters

• (00:00) - Introduction and Personal News

• Microsoft Announces TypeScript Native Previews
• Zod 4 is officially released 🎉
• Reports of Denos Demise are greatly exaggerated
• You can now import json files across browsers (h/t stefanjudis.com)
• Experimental node.config.json support in Node 24.1.0 minor release (h/t aduh95)
• Deno’s brief history of JavaScript
• Tsdown now has unbundle support (h/t sxzz.dev)
• Vite now has a Rolldown preview too
• MS Build: Anders gave a talk on TypeScript native port
• Jake Bailey built a tool called ts-to-go
• Jake Bailey will also be speaking about TS Go at Gophercon
• super-utils-plus: modern lodash alternative that's TypeScript-first by Dhaxor (Gain John)
• How To Create a Simple TypeScript Library That Runs Everywhere (2025) 
• Tsc.run – A TypeScript-first serverless framework (via Reddit)
• Looking for a TS job? The TypeScript.jobs board folks are looking for feedback (via Reddit)
• MIT Technology Review has an absolute banger of a series on AI energy usage
• Improve Electron app performance by Amila over at palette.dev, the maintainer of electron-react-boilerplate
• Reddit: My new favorite hobby is watching Microsoft employees being slowly driven insane by AI copilot 
• presenterm, a Markdown presentation tool that runs in your terminal
• Via Daniel Raniz: https://sli.dev, another Markdown presentation tool
• MS Build: Advanced Playwright Debugging and Test Resilience | DEM499 
• MS Build: How Microsoft Developers Use AI in Real-World Coding | BRK103 
• Can You Build a Web Browser? | Andreas Kling 
• How Computers Generate Massive Primes In Seconds
• Google Slides Code Highlighter (from Roman Nurik)

Sponsored by Excalibur.js
Excalibur.js is the friendly TypeScript game engine for making 2D web games. Use your TypeScript or JavaScript skills to make games! Excalibur comes out-of-the-box with everything you need to make web games, like physics, sprites, animations, sound effects, input, and particles. Design your assets with tools like Aseprite and Tiled, then load them natively using first-party plugins.

Music
Seahorse Dreams by Kubbi (Spotify)

Creators & Guests

News for the week of May 12, 2025: Microsoft layoffs impact TypeScript team, and Deno explains the radio silence on Fresh 2.0.

Chapters

• (00:00) - Personal News

• News: Microsoft Layoffs
• News: Deno Fresh – An Update on 2.0 (h/t deno.land)
• Let Ron Buckton know how much you appreciate his work
• Bluesky: String split quirk (h/t kramer.run)
• Video: Oldie but a goodie (2023), “just enough TS" by Shawn Wildermuth
• Tip: Don't forget about TS import migration for Node 24 (h/t jakob.jingleheimer.dev)
• Reddit Discussion: what was the hardest part of learning TypeScript?
• Reddit tip: increasing memory limit for eslint and TS server
• Blog: The TSConfig Cheat Sheet (Matt Pocock)
• Blog: A Guide to tsconfig.json (Dr. Axel / 2ality)
• Blog: Type Assertions and the as keyword (chrisk-7777)
• Video: The Secret THIS Parameter: TypeScript’s overlooked Superpower Explained! (Typed Rocks)
• Video: 6 TypeScript tips to turn you into a WIZARD (Matt Pocock)
• Tip: strongly type process.env so you can enforce your dotenv files (h/t aaronmcadam.com)
• Cool stuff: Escape the City outdoor game
• Cool stuff: Sail North – pirate sea shanties meets pop/rock
• Cool stuff: Open5e for D&D nerds
• Cool stuff: Add TypeScript/JavaScript Support for Godot 4 

Sponsored by Excalibur.js
Excalibur.js is the friendly TypeScript game engine for making 2D web games. Use your TypeScript or JavaScript skills to make games! Excalibur comes out-of-the-box with everything you need to make web games, like physics, sprites, animations, sound effects, input, and particles. Design your assets with tools like Aseprite and Tiled, then load them natively using first-party plugins.

Music
Seahorse Dreams by Kubbi (Spotify)

Creators & Guests

In this week's deep dive, we cover everything TypeScript developers need to know about the latest Node 24 release, including examples of each new language feature. We've even put together a code snippet repo you can check out!

Chapters

• (00:00) - Introduction to Node 24 and TypeScript Support

• Repo: Node 24 Examples in TypeScript (by Kamran)
• Node 24 Release Blog
• Node 24 typings PR
• TypeScript 5.8 Release Notes
• Docs: Typescript support
• Docs: Permissions
• Rob Palmer's quick Bluesky thread on Node 24
• Multithreading in Node.js: Using Atomics for Safe Shared Memory Operations (Pavel Romanov)
• Everything You Need to Know About Node.js Type Stripping (Marco Ippolito)
• tc39/proposal-regexp-modifiers
• tc39/proposal-duplicate-named-capturing-groups 
• next-10 technical priorities
• next-10 security model

Sponsored by Excalibur.js
Excalibur.js is the friendly TypeScript game engine for making 2D web games. Use your TypeScript or JavaScript skills to make games! Excalibur comes out-of-the-box with everything you need to make web games, like physics, sprites, animations, sound effects, input, and particles. Design your assets with tools like Aseprite and Tiled, then load them natively using first-party plugins.

Music
Seahorse Dreams by Kubbi (Spotify)

Creators & Guests

News for the week of May 5, 2025: Node 24 officially brings TS support to the masses, Parcel adds RSC support, and a TC39 proposal gets replaced.

Chapters

• (00:00) - Introduction

• Event: IGDATC Game.wav
• Article: An introduction to Node.js 24 from Red Hat
• Video: Awesome on Node.js 24
• Repo: Records and Tuples Proposal replaced with tc39/proposal-composites
• Video: Arrays, objects... now ‘composites’? 
• Docs: Parcel 2.14 introduces React Server Components 
• Bluesky: Interesting thread on why Node 24 was delayed
• Article: Type-Safe Theming in Tailwind CSS Using CSS Variables and TypeScript
• Redditors share TypeScript Gotchas
• Article: Giving V8 a Heads-Up: Faster JavaScript Startup with Explicit Compile Hints
• Video: Jason Yu shares his way of doing try..catch in TS
• Video: Build System For C in C 
• Learn: Typecraft's Vim Challenges 

Sponsored by Excalibur.js
Excalibur.js is the friendly TypeScript game engine for making 2D web games. Use your TypeScript or JavaScript skills to make games! Excalibur comes out-of-the-box with everything you need to make web games, like physics, sprites, animations, sound effects, input, and particles. Design your assets with tools like Aseprite and Tiled, then load them natively using first-party plugins.

Music
Seahorse Dreams by Kubbi (Spotify)

Creators & Guests

News for the week of April 28, 2025: Deno 2.3 brings some nice quality-of-life improvements, plus void(0) has released a new all-in-one bundler for your TypeScript libraries.

Chapters

• (00:00) - Introduction

• Website: Minnestar events
• Website: IGDATC
• Tool: Deno 2.3
• Tool: tsdown
• Tool: Astro 5.7
• Bsky thread: Macros in TypeScript (@cinny.bun.how)
• Bsky thread: Dan Abramov AMA
• Article: If I wrote a linter, part 1 (Joshua Goldberg)
• Article: Plaid migration to Deno Deploy
• Article: Pinterest Flow to TS migration
• Article: Converting values to strings (2ality)
• Library: Immaculata
• Library: vue-route-query
• Tool: Sapling SCM
• Article: Ductless Ceiling Cassettes
• Video: Quantum computing explainer (3blue1brown)
• Video: ed text editor (Kay Lack)
• Website: Game Icons

Sponsored by Excalibur.js
Excalibur.js is the friendly TypeScript game engine for making 2D web games. Use your TypeScript or JavaScript skills to make games! Excalibur comes out-of-the-box with everything you need to make web games, like physics, sprites, animations, sound effects, input, and particles. Design your assets with tools like Aseprite and Tiled, then load them natively using first-party plugins.

Music
Seahorse Dreams by Kubbi (Spotify)

Creators & Guests