This Week In React #124: FLIP, Lifecycle, Next.js, TypeScript, Vanilla-Extract, LiveView, Remix, Fontpie, Remotion...

Hi everyone!

After a few intense weeks, the React ecosystem slows down a bit in terms of major announcements.

We still have some very good articles coming out. The TypeScript plugin for Next.js looks awesome!

The GitHub Universe conference has ended. GitHub seems to be using React more and more, on some views, and also via GitHub Blocks based on MDX.

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⚛️ React

Inside Framer's Magic Motion

A great interactive article that explains what a layout animation is. It greatly deconstructs the FLIP technique which allows to make this kind of transition perform better via CSS transforms (position, scale). We recreate the layout animation system of Framer Motion step by step.

On the same subject, I recommend to read also Everything about Framer Motion layout animations.

Timeline of a React Component With Hooks

An interactive diagram that demonstrates the lifecycle of a React component, including hooks, refs, and DOM updates/paint (not available on mobile). Also includes a quiz to test your knowledge, and many quotes/references.

Next.js 13 TypeScript Plugin

Shu Ding is working on a TypeScript language service plugin (source) that significantly improves Next.js DX by bringing docs, new errors and autocompletion on top of Next.js and Server Components conventions. This compensates nicely the inability to type exports from an ES module in TypeScript, a feature much requested by framework authors.

Writing Performant CSS with vanilla-extract

An exhaustive article about vanilla-extract, the no-runtime CSS-in-JS library based on TypeScript by Mark Dalgleish (creator of CSS Modules). Mention also its atomic CSS overlay Sprinkles. Examples based on React: reproduction of a Tailwind UI component. Many comparisons with Tailwind and other CSS-in-JS solutions. Well, it looks powerful, but not so simple indeed 😅 We'll have to study this further.

📖 React beta docs: class component API ref (WIP)
🐙 GitHub UI using React (Hacker News thread): GitHub seems to use React more and more. They also have a React design system: Primer React. The upcoming feature GitHub Blocks which allows to make the README interactive is also implemented with MDX
📜 Fetching data in React: the case of lost Promises: well-illustrated interactive article on the race conditions that can occur when making requests. Gives several techniques to avoid them. I also wrote an article on the subject 😜 (both are worth reading, quite complementary)
📜 A Love Letter to React: the creator of Phoenix (Elixir framework) explains how he was inspired by React to create LiveView: a solution to add interactivity on server-side rendered HTML. LiveView reminds me a lot of Remix!
📜 Open Development for Remix: Remix wants the project to be community driven. Everything becomes public: roadmap/process, and planning meetings streamed on Youtube.
📜 Type-safe environment variables on both client and server with Remix: interesting solution parsing env variables with Zod and exposing some of them to the client, including type-safety and autocomplete.
📜 Chromatic - Interaction tests for user behavior: Storybook interaction tests are now integrated with Chromatic SaaS
📜 React Server vs Client components in Next.js 13
📜 What is a state manager
📜 A novel schema-first approach to building forms
📜 Creating fluffy trees with Three.js (part 1)
📊 I compared deploy speeds for Reflame, Vercel, Netlify, Cloudflare Pages on the same repo: the marketing around "instant deploy" is not always true.
💰 Remotion - We raised CHF 180k to simplify programmatic video!: I bring my modest contribution 🤭
🐦 Comparison between Next.js 12 and the Next.js 13 experimental app dir!
🗣 RemixConf 2023 CFP Open
📦 Fontpie: new CLI solution to avoid custom font layout shifts (see this demo to understand). It makes techniques used in next/font framework-agnostic.
📦 Remix-Vite: adds Hot Module Replacement support to Remix
📦 craco 7.0: allows to customize CRA - CRA v5 support
📦 Redwood 3.3
📦 Rockpack 3.0 - create-react-app on steroids + SSR

refine - 100% open-source, headless React framework for building CRUD apps

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📱 React-Native

📜 Expo-router and remote code: shows how to use react-native-wormhole with Expo Router to consume React-Native components on a remote url. It's quite related to the idea of having React-Native Server Components.
🧵 Expo Modules API thread: Tomasz Sapeta shares some interesting info about the new Expo API for creating modern native modules in Swift/Kotlin, including some future developments like SwiftUI / Jetpack Compose support.
📦 React-Native 0.70.6
📦 Moti 0.21
📦 JestNative v5.2 matchers - toHaveAccessibilityState()
🎙️ The React Native Show 18 - Module Federation
🎙️ RNR 252 - Ionic's React Native Portals with Josh Thomas

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🔀 Other

TypeScript 4.9: with satisfies!
TypeScript satisfies operator: another example of using satisfies
Qwik Showcase: great Lighthouse scores
Introducing SolidStart: The SolidJS Framework: the SolidJS meta-framework SolidJS is now in beta. It takes some React ecosystem inspirations and bring some novel ideas. See also Fireship - A Solid Start
Parcel 2.8: great improvements around bundling, perf, HMR, code splitting...
Deno 1.28 - Featuring 1.3 Million New Modules: npm compatibility with security in mind. See also this video.
The evolution of scalable CSS: nice retrospective of the evolution of CSS techniques, including CSS-in-JS popularized by React
Why would anyone need JavaScript generator functions?
Stylify - Write CSS Faster
Everything new from GitHub Universe 2022
Octoverse 2022 - The state of open source software
Forking Chrome to turn HTML into SVG
This week in stc, 1
Change Array By Copy in Chromium
ultrahtml 1.0
Announcing Cypress Component Testing GA and Performance Improvements in Cypress 11
GreenFrame - measure the carbon footprint of websites
Doctolib - 10 lessons I learned owning on a Design System for 30+ Product Designers and 200+ Developers
Node.js Security Best Practices

🤭 Fun

For even more fun, it's all there!

This Week In React #124: FLIP, Lifecycle, Next.js, TypeScript, Vanilla-Extract, LiveView, Remix, Fontpie, Remotion...

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