TypeScript.fm - The Friendly Show for TypeScript Developers10 Mars 2025

React, TypeScript, and... Schbooleans? | Ep 8

This week Kamran dives into some nuances with using React with TypeScript while Erik plays the React fool and coins the word "schbooleans" (yep). In the news, erasableSyntaxOnly gets shipped, some new minor releases in the ecosystem, and oh, TypeScript types can run DOOM. Yes, TS is a real language now.

Erik's News

Personal Blog Post: The Best Worst Year
Happy New Year Excalibur!
Excalibur 2024 Community Reel
Erik didn't finish the flappy bird vid or lighting feature in time, consolation prize
- Flappy Bird Article
Excalibur Lighting PRs: Pipeline & PoC

Week of February 24, 2025

(04:16) - News: TypeScript 5.8 Released
- userland-codemods for transforming import extensions to ".ts"
(06:32) - News: Bun 1.2.4 Released
(08:01) - News: Next.js 15.2 Released
(09:29) - News: Astro 5.4 Released
(09:49) - News: React Router 7.2 Released
(10:25) - News: ArkType 2.1 Released
(11:23) - News: Mozilla's Firefox Privacy Policy Rug-pull
(14:32) - News: Warp Terminal is Now Available on Windows
(15:55) - Community Highlights: TypeScript Types Can Run DOOM (!?)
- Write-up by Simon Willison
- Write-up on Socket.dev
- Mark Seeman's series (and course) on type-driven development (F#)
(20:24) - Community Highlights: Dr. Axel's Corner
- free-typescript-resources Gist
- Testing Types and asserttt
(22:19) - Community Highlights: Safety-Web ESLint Plugin
(23:27) - Community Highlights: Pattern for Strongly Typed Event Emitters
(24:20) - Community Highlights: Websocks, a Typed WebSockets Router for Node

Deep Dive: TypeScript and React Nuances

(26:17) - Deep Dive: TypeScript and React
(27:26) - Deep Dive: What You Need to Know First
- Using Vite react-ts template
(28:27) - Deep Dive: TSConfig Options for React and TS
(32:55) - Deep Dive: How JSX/TSX Works Under the Hood
- Deno has native support for TSX/JSX
- And so does Bun
(35:03) - Deep Dive: TSX in Different Runtimes
(35:39) - Deep Dive: Typing Components and Props
- Example of leaning on inference
(38:12) - Deep Dive: Typing the Children Prop
(40:13) - Deep Dive: Where Should Typings Go?
(41:05) - Deep Dive: Should I Use React Class Components?
(43:21) - Deep Dive: Typing Events and Callbacks
(46:59) - Deep Dive: Typing Data and APIs
(48:41) - Deep Dive: Typing Form Actions and "Schbooleans"
(51:19) - Deep Dive: Typing State and Set-state Actions
(54:11) - Deep Dive: Typing Contexts
(54:49) - Deep Dive: Typing Refs and DOM Attributes
(58:19) - Deep Dive: Sharing Typed Components in Libraries
(59:56) - Deep Dive: Takeaways / tl;dl
Resource: React and TS Cheatsheets
Resource: Using React with TypeScript guided code lab on Pluralsight (requires subscription)

Secrets of the Handbook

(01:01:30) - Secrets of the Handbook: Our Favorite Utility Types

Links

(01:04:13) - Cool Stuff: Kamran's been playing Avowed and Pillars of Eternity
(01:05:25) - Cool Stuff: Erik's spreads his stink with

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TS 7 Compiler API Plans, Elysia 2 Beta, and JSX in ASP.NET Core | News | Ep 76

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7 Aug 1h 2min

Type-aware Linting Stable in oxlint, Qwik v2 Beta, and Octane Turns Up the Heat on React | News | Ep 75

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Announcing TypeScript 7, Bun 1.4 is in Rust, and Vite+ Beta | News | Ep 74

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TypeScript, Agents, and What Skills Will Matter Tomorrow | Kent C Dodds | Ep 73B

In this episode, we interview Kent. C Dodds, a prolific developer educator and TypeScript fan, to talk about his new courses and where he sees the future of software development going. Should you stil...

2 Juli 57min

TypeScript 7 RC, a Bun-like DX for Node.js, and k8s in the Browser | News | Ep 72

News for the week of June 15, 2026: TypeScript 7 RC, Astro 7, Babel 8, React Router 8, and a new Bun-like DX for Node.js. From the community: k8s simulated in the browser, relocating rigor, and which ...

23 Juni 1h 9min

Stack Overflow for Agents, Nuxi Agent, and Safari 27 Beta | News | Ep 71

News for the week of June 8, 2026: Nuxi agent helps you learn Nuxt, Stack Overflow builds a dedicated knowledge base for agents, and new talks from Web Engine Hackfest and JSNation available for your ...

16 Juni 49min

VoidZero Joins Cloudflare, New npm 12 Security Defaults, and Angular 22 | News | Ep 70

News for the week of June 1, 2026: VoidZero joins Cloudflare, npm 12 will fix security defaults, and Angular 22 is out. From the community: tips every TS developer should know, how numpy-ts got faster...

11 Juni 38min

Astro 6.4, Rust's Restriction on LLMs, and Why tsgo Uses So Much Memory | News | Ep 69

News for the week of May 25, 2026: Astro's new Markdown processor API, Rust's take on LLM authorship, and new stage 4 TC39 proposals. From the community: highlights.Sponsored by Excalibur.jsExcalibur....

2 Juni 1h 6min