TypeScript.fm

Community highlights ✨

- @robpalmer.bsky.social: TS 5.9 & Node 22.18 LTS highlights
- @ryanskinner.com: Rust-based Next.js alt
- @deno.land: Next.js & SvelteKit templates
- @pnpm.io: Deno/Bun engine support
- @mhartington.io: TypeScript performance
- @purl.org: Parsing TS types with TS types 😈

Node 22.18 LTS Green Lights TypeScript for Orgs | News | Ep 29 | TypeScript.fm - The Friendly Show for TypeScript Developers | Episode 29 News of the week of July 28, 2025: TS 5.9 released, Node 22.18 is the first LTS to support TypeScript, a Rust-based alternative to Next.js, plus why Laravel ain't your pappy's PHP. From the community:...

Today on the pod, Node 22.18 LTS brings TypeScript to the masses! TS 5.9, a Rust-based alternative to Next.js, Laravel Wayfinder, and top community picks. Listen: share.transistor.fm/s/5216ca1c #typescript

Announcing TypeScript 5.9 - TypeScript Today we are excited to announce the release of TypeScript 5.9! If you’re not familiar with TypeScript, it’s a language that builds on JavaScript by adding syntax for types. With types, TypeScript mak...

TypeScript 5.9 is now available! 📣

This release brings:

✅ An updated tsc --init
✅ Type-checking for the new 'import defer'
✅ Actual summaries in more DOM APIs
✅ Expandable quick info hovers (✨preview✨)

and more! Read up more on our blog:

devblogs.microsoft.com/typescript/a...

Building Secure TypeScript Applications | Liran Tal | Ep 28B | TypeScript.fm - The Friendly Show for TypeScript Developers | Episode 28 Liran Tal (lirantal.com) from Snyk joins us to dive deep into writing secure TypeScript applications. What's different compared to vanilla JavaScript security? Will schema validators fix all our woes?...

Liran Tal from Snyk shares how to build secure TypeScript apps, avoid common pitfalls, and not over-trust types or LLMs. Listen: share.transistor.fm/s/c587816d #typescript

Community highlights ✨
- @deno.land's Deno Fresh 2.0 alpha
- @raganwald.social.bau-ha.us.ap.brid.gy explores BigInt type inference in TypeScript
- Yorgos introduces TypeScript in the browser with tsbro
- @alessiocoser.com introduces pure-ts-mock
- @sirpepe.bsky.social const acrobatics

Deno Fresh 2.0 Alpha, a BigInt Trick, and Learn TS in One Hour | News | Ep 28 | TypeScript.fm - The Friendly Show for TypeScript Developers | Episode 28 News of the week of July 21, 2025: Deno Fresh 2.0 is in alpha, TS 5.9 RC has some small changes, and beware the latest eslint-config-prettier supply chain attack. From the community: learn TypeScript...

Today on the pod: Deno Fresh 2.0 alpha, TS 5.9 RC, npm linter attack, learn TS in an hour, generics, DI libs & more! share.transistor.fm/s/857c045a #typescript

Community highlights ✨

- @boshen.github.io: oxlint + tsgolint = no slowdown!
- @kettanaito.com: rettime, a type-safe event emitter
- @ssalbdivad.dev: Testing type completions with @ark/attest
- @dr-axel.de: per-module permissions?
- @kyleshevl.in: Return types on functions, yay or nay?

Fun stuff!

Nuxt 4.0, Bun's Smarter Types, and Testing Type Completions | News | Ep 27 | TypeScript.fm - The Friendly Show for TypeScript Developers | Episode 27 News of the week of July 14, 2025: Nuxt 4.0 is released along with an acquisition by Vercel, TSGO ships go-to-type definition support, and Bun ships smarter types. From the community: test type…

Sorry for the late episode this week but: Nuxt 4.0 is out, Vercel acquires NuxtLabs, Bun gets smarter types, and TSGO adds go-to-type! Plus: type completions, type-level maps, and inference deep-dives. share.transistor.fm/s/b8dbe1a6 #typescript

Community highlights ✨

- @arnaud-barre.bsky.social introduces tsl, a type-aware linter for TypeScript
- @joshuakgoldberg.com launches the new typescript-eslint homepage
- @nmn.bsky.social enum proposal
- trashh_dev asks WTF TS at @renderatl.com
- MorphKit migrates to @nativescript.bsky.social

TypeScript 5.9 Beta, Redonkulous Linting, and a Community Enum Syntax Proposal | News | Ep 26 | TypeScript.fm - The Friendly Show for TypeScript Developers | Episode 26 News of the week of July 7, 2025: We dive into the TypeScript 5.9 beta, an experimental Go linter for TS/JS, plus make sure you upgrade your Node.js versions! From the community: a new enum syntax proposal...

Today on the pod: TS 5.9 beta, Go-powered linting, Node.js security, enum syntax proposal, and Rust-style TS diagnostics! share.transistor.fm/s/d40c5049 #typescript

Deno 2.4 Bweets, Next.js Vuln Alert, Modern Node, and Typed Mongo | News | Ep 25 | TypeScript.fm - The Friendly Show for TypeScript Developers | Episode 25 News of the week of June 30, 2025, Deno Bundle is Back in Black in 2.4! We coin the term "Bweet", Deno also gets some non-standard import attributes for text and bytes, OTEL is now stable in Deno, and...

Today on the pod: Deno 2.4's new features, Next.js DoS vuln, modern Node.js patterns, and typing MongoDB in TypeScript. Listen: share.transistor.fm/s/cee76c97 #typescript

Community highlights ✨

- @thisismissem.social Node.js LGBTQIA+ Stories
- @noctovis.bsky.social NDC Oslo Keynote
- @literat.dev tsc --traceResolution
- @danielpza.xyz Type your MongoDB collections

Deno 2.4 Bweets, Next.js Vuln Alert, Modern Node, and Typed Mongo | News | Ep 25 | TypeScript.fm - The Friendly Show for TypeScript Developers | Episode 25 News of the week of June 30, 2025, Deno Bundle is Back in Black in 2.4! We coin the term "Bweet", Deno also gets some non-standard import attributes for text and bytes, OTEL is now stable in Deno,…

Today on the pod! Deno Bundle is Back in Black in 2.4! We coin the term "Bweet", Deno also gets some non-standard import attributes for text and bytes, OTEL is now stable in Deno, and Next.js has a DoS vulnerability.

Listen: share.transistor.fm/s/cee76c97

Community highlights ✨

- @sinja.io 6 advanced TS tricks
- @kanishkanaik.dev: Func programming tips
- @ntorresdev.bsky.social: Exhaustive check trick
- @dsherret.bsky.social: Import types text and bytes in Deno
- @cinny.bun.how: Importing JSON config as const
- @arktype.io: Branded types

ECMAScript 2025 is Ratified, Vite 7, and 6 Advanced TS Tricks | News | Ep 24 | TypeScript.fm - The Friendly Show for TypeScript Developers | Episode 24 News for the week of June 23, 2025: Ecma ratifies ES2025 standard, Vite 7 is mostly deprecations, Oracle gets a free pass, and the experimental type stripping warning is... stripped... from latest Node...

Today on the pod: ES2025 is ratified, Vite 7 deprecates features, Node LTS updates, plus 6 advanced TypeScript tricks & more. Listen: share.transistor.fm/s/9502cc66 #typescript

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one of my favourite typescript hacks

Community highlights ✨

- @slack.engineering shares CI improvements by migrating to TSGO
- @dr-axel.de shares tips on map/index key type safety
- @iwoplaza.bsky.social released TypeGPU 0.5.9
- @joyeecheung.bsky.social‬'s talk on CommonJS/ESM in Node.js
- @nodejs.org honors Mikeal Rogers

New Biome, Mocha, Jest, and k6 Releases All Kissed by TypeScript | News | Ep 23 | TypeScript.fm - The Friendly Show for TypeScript Developers | Episode 23 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...

Biome v2 brings type-aware linting, Mocha & Jest add native ESM/TS, k6 runs TS tests, plus tips on map/index key type safety, import maps & WebGPU. Listen: share.transistor.fm/s/48085fcd #typescript

@typescript.fm has rapidly become one of my favorite podcasts. It's great for catching up on TypeScript & web things regularly.

Thanks @erikonarheim.com @kamranicus.com for making an awesome resource! 🙌

Community highlights ✨

- @lirantal.com on securing TS
- @socket.dev post on pnpm's new virtual store
- @nxjosh.bsky.social introduces TypeFire
- @cinny.bun.how shares a JIT schema validation library
- @dr-axel.de releases new ES2025 edition for Exploring JS
- @ycmjason.codes wants #ROLP to trend

Strip Your Own Types, New Rust-based Linter, and #ROLP is Trending | News | Ep 22 | TypeScript.fm - The Friendly Show for TypeScript Developers | Episode 22 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...

Today on the pod: Node's type stripping wrapper is now standalone, Oxlint brings Rust speed to TS linting, pnpm gets faster, and more! share.transistor.fm/s/e55fe2aa #typescript

Community highlights ✨

- @robpalmer.bsky.social on tsc --init defaults and import deferred
- @mhartington.io talk on TS performance
- @storybook.js.org posted a breakdown thread for Storybook 9
- @tc39.es shared TC39 proposal advancements
- @paul.irish highlighted Chrome profiler changes

TSC Init New Defaults, Who Dis? Plus Vite 7, Babel 8 Betas | News | Ep 21 | TypeScript.fm - The Friendly Show for TypeScript Developers | Episode 21 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...

Today on the pod: tsc --init gets modern defaults, Vite 7 & Babel 8 betas, plus advanced TS tips for monorepos. Listen: share.transistor.fm/s/ed088fd9 #typescript

huge honor! Check out ts-migrating here: github.com/ycmjason/ts-...

Painless TSConfig Migrations | Jason Yu | 20B | TypeScript.fm - The Friendly Show for TypeScript Developers | Episode 20 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...

Every try upgrading your TSConfig? It can be painful for big codebases. No longer! In todays episode, Jason Yu (@ycmjason.codes) shares how to migrate to modern compiler options progressively with his new tool ts-migrating.

Don't miss this one! Listen now: share.transistor.fm/s/cd59a068 #typescript

YouTube video by YCMJason Codes 7 Modern IIFE Tricks You’ll Wish You Knew Sooner

IIFE deserves more love! #javascript #typescript

youtu.be/ZyxOt09-LXE

Community highlights ✨

- @joshuakgoldberg.com: Types Beyond TypeScript talk
- @sirhamy.bsky.social: errors as values in JS/TS
- @skeary.me : language written in TS types
- @jasnell.me : Node/Deno/Bun competing?
- @statico.bsky.social : curated JS grids
- @ycmjason.codes: config migrations!

Angular Turns 20, Remix Revived, and Hurricane André Hits Firefox | News | Ep 20 | TypeScript.fm - The Friendly Show for TypeScript Developers | Episode 20 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...

Angular 20 brings DX boosts, Remix is back, Temporal API hits Firefox, plus new TS tools & community highlights. Listen: share.transistor.fm/s/a8f236c7 #typescript

A brief history of JavaScript | Deno In 30 years, JavaScript went from being a little scripting language to one of the world's most popular. Here are key moments to show how it has evolved and where it is headed.

Be sure to check out @deno.land's Brief History of JavaScript, it'll give you some nostalgia. 🥹

deno.com/blog/history...

Happy birthday, #JavaScript turned 30 this year!

Listen to episode: share.transistor.fm/s/996acd99 #TypeScript