Julien Cavaleiro

the famous "ULTIMATE DOOM" poster, but it says "TYPESCRIPT TYPES"

Doom now runs in @typescriptlang.org types. What a journey this one's been.

26.02.2025 15:03 — 👍 299    🔁 73    💬 16    📌 61

A photo of street in Colmar, France during Christmas

I love Christmas here

18.12.2024 07:54 — 👍 1    🔁 0    💬 0    📌 0

Screenshot showing the Chrome DevTools Performance tab with RSC integration.

I'm working on built-in profiling of both Client and Server Components in Chrome DevTools Performance tab. Thanks to the new performance.measure() extensions. h/t Andrés Olivares

This works in any RSC environment. In fact, this screenshot is running RSC for Parcel. h/t @devongovett.bsky.social

12.12.2024 04:25 — 👍 188    🔁 23    💬 3    📌 2

React v19 – React The library for web and native user interfaces

React v19 is now stable!

react.dev/blog/2024/12...

05.12.2024 19:05 — 👍 1295    🔁 349    💬 32    📌 94

Next-level frosted glass with backdrop-filter • Josh W. Comeau Glassy headers have become a core part of the “slick startup” UI toolkit, but they’re all missing that final 10% that really makes it shine. In this tutorial, you’ll learn how to create the most reali...

One of my favourite UI patterns is using `backdrop-filter` to create a “frosted glass” effect.

When I see this effect in the wild, though, it’s almost never as lush and realistic as it could be. There’s an important optimization that nobody makes.

✨ I share the secret sauce in my brand-new post:

02.12.2024 18:18 — 👍 974    🔁 139    💬 46    📌 32

TypeScript 5.7 is released 🎉

🔶 ES2024 library types
🔷 Checker: Never-initialized variables
🔷 Checker: Stricter JSON imports
🔷 Emit: Extension rewriting (*.ts to *.js)
🔷 DTS: Computed methods
🔷 IDE: Better tsconfig discovery
🔷 Perf: Code Caching ⚡️ 2.5x faster startup

22.11.2024 23:05 — 👍 40    🔁 3    💬 0    📌 1

[React 19] Disabling prerendering siblings of suspended components breaking common pattern · Issue #29898 · facebook/react Summary I'm creating this issue to continue the discussion that spawned in the already merged PR (#26380) Several community members have raised concerns about this change and it has gained traction...

react@19.0.0-rc1 is out today with a replacement for sibling pre-rendering. Give it a try and maybe we can ship React 19 soon?

github.com/facebook/rea...

14.11.2024 22:03 — 👍 628    🔁 64    💬 16    📌 13

TypeScript 5.7 RC is released 🎉

🔶 ES2024 library types
🔷 Checker: Never-initialized variables
🔷 Checker: Stricter JSON imports
🔷 Emit: Extension rewriting (*.ts to *.js)
🔷 DTS: Computed methods
🔷 IDE: Better tsconfig discovery
🔷 Perf: Code Caching ⚡️ 2.5x faster startup

08.11.2024 21:52 — 👍 121    🔁 21    💬 2    📌 2

This Week In React 208

⚛️
- Compiler
- Next.js
- Docusaurus
- TanStack
- Actions
- nuqs
- StyleX
- Storybook
- next-link-validate
- uikit

📱
- React Navigation
- Shopify
- Nitro
- CocoaPods
- VisionCamera
- Reanimated
- Maestro
- BottomTabs

Read online or by ✉️
thisweekinreact.com/newsletter/208

06.11.2024 19:05 — 👍 154    🔁 23    💬 4    📌 5

I might do have one here. I have to generate an sbom folder/file at build time. Using a community plugin with webpack rn that would be difficult to reproduce with a turbo setup

03.11.2024 01:32 — 👍 0    🔁 0    💬 0    📌 0

if you see this you have to post a picture from your phone but don't explain it

30.06.2024 17:44 — 👍 2    🔁 0    💬 0    📌 0