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TSC Init New Defaults, Who Dis? Plus Vite 7, Babel 8 Betas | News | Ep 21
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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
- (02:26) - News: tsc --init Finally Has New Defaults
- (04:39) - News: Deferred Imports Syntax Will Land in TS 5.9
- (06:38) - News: Vitest 3.2 Brings Annotations, Better TS Support
- (08:21) - News: Vite 7 Beta
- (09:17) - News: Babel 8 Beta
- (10:49) - News: Storybook 9 Adds Interaction Tests, A11y Improvements
- (11:54) - News: TC39 Proposal Advancements
- (14:54) - News: IRS Uses TypeScript and React
- (16:50) - Community Highlight: The M.I.N.T. Principle by Sean Maxwell
- (22:07) - Community Highlight: Advanced TS by Web Dev Simplified
- (22:32) - Community Highlight: TS Monorepo Tips by Mike Hartington and Colin Hacks
- (24:30) - Community Highlight: Learn How Signals Work in TypeScript by Jon Kuperman
- (25:32) - Community Highlight: Your Feedback!
- (27:07) - Cool Stuff: Reverse-Engineering Linear's Sync Engine
- (28:09) - Cool Stuff: Chrome Performance Profiler Gets a Facelift
News
- 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
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)
25 episodes
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