This Week In React
@ThisWeekInReact
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• ⚛️ Stay up-to-date with React • 📡 High signal, no drama • 🔥 Join 42k React devs - 1 email/week • 📨 • By @sebastienlorber
📨 For React Experts 👇
Joined January 2024
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@sebastienlorber
React from Another Dimension -
@dan_abramov2
talk at Remix Conf 2023:
Hono 4.0 release
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TypeScript 5.4 is in beta 👀
It notably includes a NoInfer utility type 👌
TypeScript 5.4 Beta is available to try! This release has lots of type narrowing improvements, the 'NoInfer' type helper, groupBy, better options for bundlers, and more!
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StyleX v0.5 is out 👀
- New stylex.attrs function
- New sort-keys rule for the Eslint plugin
- New aliases option for the StyleX Babel plugin
- New Esbuild plugin
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Interesting Next.js feedback
They dev really hate Next.js dev server 😅
They'd go back and choose
@remix_run
instead
Migrating to Next.js App Router: the good, bad, and ugly
Last year we rebuilt the
@Flightcontrolhq
dashboard with App Router 🙂
In this post, I share our perspective on it after using it for a significant production app
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👀 Next.js DevTools?
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Turning React into a video using a single terminal command 🤯 Made possible by Remotion.
Turn any URL into a video with a terminal only - as requested by
@t3dotgg
sudo npm i -g puppeteer-screenshot-cli
@remotion
/cli
@4
.0.102
puppeteer-screenshot --width 1920 --fullPage '
https://ping.gg'
> shot.jpg
export URL=$(curl --upload-file ./shot.jpg )
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Million lint? 🤔 👀
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👀 New React Native Skia <Atlas> component landed
Efficiently draw a very large number of similar textures/images
Betting on Reanimated has enabled us to provide a seamless way to create declarative texture in Skia: Now are taking this concept a bit further with a new API allowing draw large scenes at top performance:
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👀 Real-time RSC looks exciting!
sneak-peek:🎈
@partykit
/react, the one framework to rule them all
- Real-time React Server Components!
- Keep business/rendering logic on the server, send UI over the wire in real-time
- Zero API setup
- one party per user, or per shared session, or even the whole world (scales
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React Server Components workshop
From the author of
@aviationdotapp
A new RSC framework that should be a in beta soon 👀
React Server Components (RSCs) can be transformative for DX and UX - but grasping it can be tricky.
Join
@GregBrimble
’s virtual workshop on Jan. 30 to learn how they work, where to use them and how to take advantage of RSC's new architecture
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Looks like a cool idea to see how React Native core performance evolves over time!
📣The
#ReactNative
#performance
dashboard is now publicly available:
📈 It runs Flashlight measures against all RN versions against a sample scenario.
🤞Should be helpful to detect regressions
We can see some interesting stuff already, details ⬇️
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👀 Exciting news
By the end of 2024, you’ll likely never need these APIs again:
• useMemo, useCallback, memo → React Compiler
• forwardRef → ref is a prop
• React.lazy → RSC, promise-as-child
• useContext → use(Context)
• throw promise → use(promise)
• <Context.Provider> → <Context>
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👀 Our first weekly React Native thread
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👀 Looks like React Forget has a new name
It's just "React Compiler" now
We've made some exciting progress on React Compiler (prev called "Forget") — check out our latest labs post for more!
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This looks really slick! Drag and drop files from other apps into your RN app.
🌟 Sneak peek of the upcoming NATIVE drag feature in your app! 📲✨ Now, not only can you paste images from other apps into yours, but you can also take the lead by dragging images from your React Native app and seamlessly pasting them into other apps. 🚀
Repo link 👇👇
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React Server Components give greater granularity and flexibility
(compared to getServerSideProps / getStaticProps)
My React Server Components (RSC) mental model is basically:
They’re getServerSideProps / getStaticProps but more powerful.
Things RSC / gSSP / gSP share in common:
🔸 You can’t pass things like normal functions from RSC / gSSP / gSP to the client, because they just can’t be
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💡 React Native is much better than Flutter for targeting the web platform
When you select text in Flutter Web, it puts an actual DOM element of a text, and tries to overlay it exactly where you selected the text (and misses like 30% of when you try to do so)
Flutter Web... is simply not it.
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Get a React Native app running on Apple's VisionPro in under 10 minutes 🤯
How to provision, build, install, and develop
@Expo
apps on a physical VisionPro, using EAS Build.
Can be done in under 10 minutes—no additional straps required.
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No need to use "use client" on all your client components
next video id like to see is about how “use client” isn’t a thing you put on each individual file that uses state etc. it’s only necessary where you cross server/client boundary. same as <script> tag
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@CFDevelop
Looking for drama/attention?
You can literally develop Expo iOS apps on windows directly in your browser without installing anything 🤷
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This JS stage-3 proposal looks great for creating mocks in tests
JavaScript's new 'using' keyword is awesome for mocking in tests.
It automatically disposes the 'mock' when it leaves scope. 🤯
No more beforeEach/afterEach...
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👀 Looks like Reanimated will release a generator API soon
Gang, it's 2024. This is how we write JS animations now, right?
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The community is already taking over this new API with great results :)
I just improved my starfield simulation by almost 1000% 🏎️
Thanks to
@wcandillon
, by using the new Altas API, I can now draw 1000 objects instead of 100 and stay at 60fps.
I’m wondering if it is possible to draw rrect instead rect 🤔
Because I couldn’t find it in the docs.
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Why do we always release on Fridays 😄
💥 Docusaurus v3.2 is available! 💥
0 breaking change, easy upgrade!
⚡ Faster builds & hot reloads
🆕 Blog: last modified date/time, processBlogPosts(), pageBasePath
🆕 Sitemap <lastmod>
😲 MDX: partials TOC support
🧩️Vercel Analytics plugin
🧑💻 CLI ask for TS
🧵 Details 👇
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Greatly explains the new Next.js experimental PPR feature
Also an awesome demonstration of a video produced with React, thanks to
@Remotion
😍
Next.js Explained: Partial Prerendering
What exactly is Partial Prerendering? How does it work? And most importantly, why does it matter?
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🙉
📺Until recently, developers could not include Expo SDK modules in their TV applications. As of SDK 50 we removed that limitation.
TV developers can now use many of the same Expo SDK features that are available to mobile developers.
In the following blog post, we show an
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Ladies and gentlemen, the weekly thread:
This Week In React 176
⚛️
- useActionState
- React Compiler
- Generative UI
- TanStack
- Vinxi RSC
- Remix i18n
- Typesafe Router
- Next.js security
- Million Lint
📱
- Shopify perf
- RCTRootViewFactory
- iOS Live Activities
- Uni Stack
- Expo custom builds
More by ✉️
👇
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👀 Submenu component
That does not look easy to implement on your own 😄
Just shipped a new React Aria release! 🚀
🚇 Submenu alpha!
🔭 Improved overlay positioning pinch zoom behavior
🗜️ Better tree shaking to reduce bundle size
🖱️ Ability to disable mouse wheel in NumberField
🛠️ More render props
🐞 Lots of bugs fixed
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@sebastienlorber
Note: this was initially implemented as experimental feature
But now it should be in a React canary release soon
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Thought of the week (inspired by the above): Let's keep challenging the status quo.
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@thiagobrez
@bndkt
Haha, actually it was my (
@sebastienlorber
) RSS reader that caught it last minute !
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