TypeScript.fm - The Friendly Show for TypeScript Developers

• Elide Runs TypeScript Faster Than Node Runs JavaScript | Sam Gammon | Ep 47B

  Sam Gammon joins the two fools to talk about Elide, a batteries-included multi-language runtime. What if you could import Python modules from TypeScript... or Ruby, or Kotlin, or Rust? What if you could consolidate multiple backends to just one that ran all your code end-to-end with a unified DX? And what if doing all that was just as fast (or faster) than your existing backend? That's what we talk about in this episode!ResourcesElide on GitHubElide docsJoin the Elide Discord serverWhere to Follow the TeamSam on GitHubSam on XChapters(00:00) - Introducing Elide, a Multi-language Runtime Built on GraalVM (03:51) - Why Support Multiple Languages? (07:42) - What is GraalVM, anyway? (09:43) - What are the Languages Elide Supports Today? (10:53) - How Does Elide Interop Between Languages? (14:03) - What Magic Allows TypeScript to Import a Python Module? (16:12) - How Does Elide's API Compare to Other Runtimes? (18:26) - Elide's Embedded Inference Engine and API (20:11) - How Does Elide Handle Idioms Like Promises? (22:39) - What About Single- vs. Multi-threading? (24:41) - What About Concurrency and Isolation? (28:33) - Does Elide Help with Serverless Cold Starts? (29:25) - Can Elide Compile Single-file Executables? (31:06) - How is TypeScript So Fast in Elide? (33:34) - Can We Start Building with Elide? (35:14) - How Do You Debug Across Multiple Languages? (38:13) - Where Does Elide Really Shine? (40:56) - How is Elide Planning to Win? (42:53) - Could Elide Support a Native Runtime Type System? (45:26) - Takeaways and Where to Learn More Sponsored by Excalibur.jsExcalibur.js is the friendly TypeScript 2D game engine for the web. 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, tile maps, particles, and more.Homepage and Docs: https://excaliburjs.comMake Your First Game in 10 MinutesJoin the Discord: https://discord.gg/9UemP985UyMusicSeahorse Dreams by Kubbi (Spotify)

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• Anthropic's Bet on Bun, React2Shell, Vite 8 Beta, and Elves Spam npm | News | Ep 47

  News for the week of December 1, 2025: Anthrophic acquired Bun, React2Shell is pretty darn bad (and that's not all), plus "elf spam" packages on npm. From the community: tRPC vs. oRPC, demystifying TSConfig, and hash-slash (#/) project-relative import support in Node.MCP in Practice CourseWatch now. Kamran shows you how to build a practical enterprise-grade MCP server with .NET, C#, and OAuth, hosted remotely on Azure. (Requires subscription)Sponsored by Excalibur.jsExcalibur.js is the free and open source friendly TypeScript 2D game engine for the web. Learn to make web games with TypeScript or JavaScript! Excalibur comes out-of-the-box with everything you need, like physics, sprites, animations, sound effects, and first-party plugins for popular 2D gamedev tools.Homepage and Docs: https://excaliburjs.comMake Your First Game in 10 MinutesJoin the Discord: https://discord.gg/9UemP985UyChapters(00:00) - Welcome to the Show (04:09) - Kamran's MCP in Practice Course is Now Live on Pluralsight (08:35) - News: Anthropic Acquires the Bun JavaScript Runtime (13:41) - News: Vite 8 Beta with Rolldown (15:40) - News: tsdown 0.17 Release (17:10) - News: oxlint Brings Type-aware Linting in Alpha (17:50) - News: oxfmt Alpha is 30X Faster Than Prettier (18:45) - News: Gird Your Loins for Upcoming Node.js Security Releases (19:38) - News: React2Shell Remote Code Execution Exploit in RSC (26:55) - News: React2Shell Causes Yet Another Cloudflare Outage (28:16) - News: Santa's Elves Flood npm With Naughty "Gifts" (30:10) - News: SVG Clickjacking Exploit Using Filters (32:05) - Community Highlight: tRPC vs. oRPC for Your Next TypeScript Project? (33:15) - Community Highlight: Testing Vue Composables in TypeScript by John Franey (34:03) - Community Highlight: Formisch for React Quietly Released by Fabian Hillar (34:53) - Community Highlight: Building a Dinosaur Runner Game in Deno (36:19) - Community Highlight: Node Will Soon Support Project Root Import Paths (37:51) - Community Highlight: TSConfig Grimoire by Bjorn Lu (39:01) - Community Highlight: How is ESM vs. CJS Going? by Titus (40:45) - Community Highlight: Next Astro Release Supports Vite Environments API (41:18) - Bleet of the Week by Joke Bailey (42:10) - Cool Read: Godot Shaders Bible by Fabrizio Espendola (42:56) - Cool Watch: Cancellation Tokens by Stephen Toub (43:44) - Cool Game: Classic Game Zork is Released as Open Source (44:16) - Cool Tool: Helion, a Modern DOOM Engine (45:18) - Cool Watch: Modern .NET Serialization Attacks by Hampton Paulk (47:25) - Cool Reads: Architecture for Flow and Domain-driven Transformation (48:40) - The Minnesota Long Goodbye NewsBun: Bun is joining Anthropic ViteLand: Vite 8 Beta: The Rolldown-powered ViteViteLand: Announcing Oxlint Type-Aware Linting AlphaViteLand: The first Oxfmt alpha was releasedViteLand: tsdown got a new releaseNode.js PSA: Prepare for Monday, December 15, 2025 Security ReleasesCloudflare: Cloudflare outage on December 5, 2025Security: npm Sees Surge of Auto-Generated “elf-stats” Packages Published Every Two Minutes via (Sarah Gooding)Security: SVG Filters - Clickjacking 2.0 Ʊ lyra's epic blog React2Shell ResourcesReact2Shell Exploit: Critical Security Vulnerability in React Server ComponentsDeep Dive: https://react2shell.com/Next.js: Security Advisory: CVE-2025-66478Deno Blog: React Server Functions / Next.js Vulnerability: Deno Deploy users protected Explainer: this is the worst case scenario by LowLevelEdFrom the CommunityTemitope Oyedele: tRPC vs oRPC: Which is better for your next TypeScript project, and why?John Franey: How to test a Vue composable with TypeScript · JohnFraney.caFabian Hiller: Formisch for React just released (quietly) – the form library that powers SolidJS Deno: Build a browser game in Deno Hybrist: Node support for #/ wildcard (via Rob Palmer)Bjorn Lu: TSConfig Grimoire (via Rob Palmer)Wooorm: How is ESM from Common going?Astro: Next release of Astro will support Vite Environment APICool LinksCool Read: Godot Shaders Bible and Ghastly in Desmos by Fabrizio EspindolaCool Watch: Cancellation Tokens with Stephen ToubCool Game: Preserving code that shaped generations: Zork I, II, and III go Open Source Cool Tool: Helion Engine, a modern DOOM engine in C#Cool Watch: Modern .NET Serialization Attacks by Hampton PaulkCool Reads: Architecture for Flow and Domain-driven TransformationMusicSeahorse Dreams by Kubbi (Spotify)

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• Progress on TypeScript 7, Advent of Code as an Excuse to Learn Zig, and Type-safe CLIs | News | Ep 46

  News for the week of November 24, 2025: TypeScript team discusses progress on TS 7 and upcoming deprecations for TS 6. Plus, Svelte's new hydratable API. From the community: creating strongly-typed CLIs with yargs, magic union types to check characters, and how TypedArray can reduce memory usage.Sponsored by Excalibur.jsExcalibur.js is the friendly TypeScript 2D game engine for the web. 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, tile maps, particles, and more.Homepage and Docs: https://excaliburjs.comMake Your First Game in 10 MinutesJoin the Discord: https://discord.gg/9UemP985UyChapters(00:00) - Welcome to the Show (05:21) - News: Progress on TypeScript 7 and Upcoming Deprecations (15:24) - News: Advent of Code is Live for Holiday Coding (17:07) - News: Svelte 5.44.0 Introduces hydratable API (19:18) - News: Vite+ FAQ Answers Some Common Questions (20:21) - News: Zed IDE Adds Better TS Error Messages (22:01) - News: TypeScript ESLint Will Simplify Redundant Type Unions (22:24) - Library Watch: Spikard, a Polyglot API Toolkit (23:31) - Library Watch: Type-safe CLIs with Optique (24:09) - Community Highlight: The Summer I Shipped Type Stripping by Marco Ippolito (25:51) - Community Highlight: Building Strongly Typed CLI Applications by John Reilly (27:10) - Community Highlight: Using Zod and TypeScript by Telerik (27:45) - Community Highlight: Lowercase & Uppercase Union by TypedRocks (28:32) - Community Highlight: Improving Bazel Type Checks with Isolated Declarations by Brad Zacher (29:28) - Community Highlight: Data-oriented Modeling by Aapo Alasuutari (32:01) - Community Highlight: Doom in TypeScript Types by Software Engineering Daily (32:17) - Bleet of the Week (32:45) - Cool Watch: Human-sized Lego Castle with 3D Printing (33:42) - Cool Watch: Predators (2010) (34:24) - Cool Watch: dotnetconf Talks (37:20) - The Minnesota Long Goodbye NewsTypeScript Blog: Progress on TypeScript 7Advent of Code is live!Svelte 5.44.0 introduces `hydratable` APIVite+: New FAQ Zed v0.214.0, now with better TS ErrorsTypeScript-ESLint 8.48.0 adds type union redundancy checkLibrary Watch: spikard, a polyglot API toolkitLibrary Watch: Optique 0.7.0 (via Hong Minhee)From the CommunityMarco Ippolito: Summer I Shipped Type StrippingJohn Reilly: Yargs: statically typed builder commands (via johnnyreilly)Telerik: Zod + TypeScript: Schema Validation Made Easy TypedRocks: The Secret Power of The  Lowercase & Uppercase UNION in TypeScript Brad Zacher: Improving Bazel TypeScript TypeChecks With IsolatedDeclarations (via Rob Palmer)Aapo Alasuutari: Interlude: A data-oriented modelSoftware Engineering Daily: Josh and Dmitri talk about Doom in TypeScript TypesCool LinksCool Watch: NFTI building a 3D printed castleCool Watch: Predators (2010)Cool Watch: dotnetconfCool Link: Aspire.dev, code-first local dev environmentsMusicSeahorse Dreams by Kubbi (Spotify)

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• Angular 21, Autofac Meets TS, and Shai Hulud Strikes Again | News | Ep 45

  News for the week of November 17, 2025: Angular 21 is zoneless by default and adds Vitest support, plus Shai-Hulud worm hits another 500+ npm packages. What's a dev to do??? From the community: you basically know C# if you already know TypeScript and a new decorator-free dependency injection library inspired by Autofac.Sponsored by Excalibur.jsExcalibur.js is the friendly TypeScript 2D game engine for the web. 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, tile maps, particles, and more.Homepage and Docs: https://excaliburjs.comMake Your First Game in 10 MinutesJoin the Discord: https://discord.gg/9UemP985UyChapters(00:00) - Welcome to the Show (03:20) - News: Angular 21 - Zoneless by Default, Supports Vitest (06:18) - News: Astro 5.16 - SVG Optimization (07:17) - News: TC39 Proposal Advancements (09:26) - PSA: Shai-Hulud Worm Strikes Again with 500+ Compromised Packages (10:34) - Tips: Mitigating npm Supply Chain Risks (14:03) - Library Watch: NovaDI - Autofac-inspired Dependency Injection (16:11) - Library Watch: UI5 by SAP (Finally) Gets Typings (17:08) - Community Highlight: C# for TypeScript Developers (19:11) - Community Highlight: Omit for Discriminated Unions by Tkdodo (20:06) - Community Highlight: Convert Go Structs into TS Interfaces (20:26) - Community Highlight: NotNite Adds Function Hooking in Deno (21:12) - Bleet of the Week (22:07) - Cool Play: Outer Worlds 2 (22:43) - Cool Link: Xbox Unlocks Access to Game Publishing Docs (23:21) - Cool Watch: JSLegend Builds a RPG in TypeScript (23:57) - The Minnesota Long Goodbye NewsAnnouncing Angular v21  – zoneless by default, adds signal forms, and has Vitest support in CLIAstro 5.16 – introduced a utility type to get action schemaTC39 Proposals Advance (h/t @robpalmer)Socket.dev: Shai Hulud Strikes Again (v2)Tip: Replace fast-glob with tinyglobbyTip: NPM Ignore Scripts Best Practices as Security Mitigation for Malicious PackagesLibrary Watch: NovaDI - Decorator-free Dependency Injection for TypeScript Library Watch: UI5 SAP gets typingsFrom the CommunityCharles Chen: TypeScript is Like C#Dominik: Omit for Discriminated Unions in TypeScriptKarl Beuer: VSCode Extension to convert Go structs to TS interfaces NotNite: function hooking in DenoCool LinksCool Read: Unlocking Access to Game Publishing Documentation for All Developers by XboxCool Watch: Making a Small RPG by JSLegendCool Game: Outer Worlds 2MusicSeahorse Dreams by Kubbi (Spotify)

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• Type Stripping is Stable, Type-safe Music, and Rust Engines Enter the Chat | News | Ep 44

  News for the week of November 10, 2025: Node 25 marks type stripping as stable, the downlow on some new Rust-based JavaScript and TypeScript engines, and a new browser for keyboard lovers. From the community: visualize how types work, using .NET Aspire without .NET, type-safe SQL, and an experimental Rust-based type checker.Sponsored by Excalibur.jsExcalibur.js is the friendly TypeScript 2D game engine for the web. 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, tile maps, particles, and more.Homepage and Docs: https://excaliburjs.comMake Your First Game in 10 MinutesJoin the Discord: https://discord.gg/9UemP985UyChapters(00:00) - Welcome to the Show (04:36) - News: TypeScript 6 Scheduled for Early 2026 (05:26) - News: Node 25.2.0 Marks Type Stripping as Stable (07:51) - News: Andromeda, a New TypeScript-native Runtime (09:15) - News: Brimstone, a New Rust-based JavaScript Engine (11:24) - News: Glide, a Browser for Neovim Dandies (15:26) - Community Highlight: Ludum Dare Creator is Open for Business (16:18) - Community Highlight: Visual Types by Kit Langton (18:34) - Community Highlight: Taking the .NET Out of Aspire by David Gardiner (19:58) - Community Highlight: We Could Have Been Rad Developers (21:08) - Library Watch: squeeel, a Type-safe SQL Builder (22:16) - Library Watch: DomoActorsTS, an Actor Model Framework (24:35) - Library Watch: Contour 2.0, Type-safe Music (26:02) - Library Watch: Hashery, Efficient Object Hashing (28:33) - Tool Watch: Ezno, a Rust-Based Type Checker (31:13) - Bleet of the Week (31:41) - Cool Tool: Debug Your Docker Build Context (34:47) - Cool Read: Nuxt MCP Server (35:19) - Cool Tool: WXT, a Modern Web Extension Framework (35:51) - Cool Watch: PolyMatt Made a Floppy Disk from Scratch (36:44) - Cool Tool: Quicker Neovim Extension (37:49) - Cool Tool: GemShell, a Way to Package Up Games (38:53) - Cool App: xelly.games, a Game-sharing Social Network (39:38) - The Minnesota Long Goodbye NewsTS 6.0 Expected in Early 2026Node 25.2.0 (Current) marks type stripping as stable!Andromeda, a native TypeScript runtime alternative to Deno (h/t Rob Palmer)Brimstone, a JavaScript engine written from scratch in RustGlide, a Firefox-based browser for neovim dandiesFrom the CommunityKit Langton: Visual Types — A Set of Animated TypeScript Concepts (h/t Reddit)David Gardiner: Aspire with Python, React, Rust and Node appsRob Palmer: Alternative names for ECMAScript that were originally consideredLibrary Watch: squeeel, a type-safe SQL builderLibrary Watch: DomoActors-TS, a TypeScript library for the actor modelLibrary Watch: Contour 2.0 “Music Composition as Code” (h/t kootenay-eric)Library Watch: Hashery (h/t jaredwray.com)Tool Watch: Ezno, a Rust TypeScript type checker (h/t fasterthanli.me)Cool LinksCool Watch: PolyMatt on YouTube makes a floppy disk from scratchCool Tool: Quicker.nvim, a better quickfix listCool Tool: gemshell, a tool to package up web gamesCool Tool: Debug your Docker build contextCool Read: Building an MCP Server for NuxtCool Tool: WXT – a modern web extensions frameworkCool App: xelly.games  - a game-sharing social networkMusicSeahorse Dreams by Kubbi (Spotify)

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