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react-18
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Simulate global state tradeoffs in React concurrent mode
If you aren't sure why state tearing was a hot topic a few years ago, when React's concurrent mode was first discussed, this github discussion should help: https://github.com/reactwg/react-18/discussions/69.
Tanner Linsley had a great post on twitter that suggested that concurrent rendering was fundamentally at odds with fine-grained reactivity, so to better understand what he was talking about I decided to write this demo.
- A modest request: How do you fetch data in React 18+ WITHOUT a third party dependency?
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The Sisyphean Quest for Web Performance
Image Source: https://github.com/reactwg/react-18/discussions/37
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useAsyncState in react, no more unnecessary useEffects.
But it does since React 18.
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Function props
See this post for more details and an example of an actual memory leak.
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ELI5, why is ReactDOM.createRoot an improvement over ReactDOM.render?
From the React WG:
- I know my component is re-rendering because a console.log I put in the component is logging in the console. However when I use the inspector to see why it re-rendered, its saying that it didnt re-render. How is this possible?
- Timeout in event handler
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The current state of CSS-in-JS + React
The React working group is officially advising against using runtime CSS-in-JS.
- Warning abt setting state of unmounted component
rfcs
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React Labs: What We've Been Working On – February 2024 – React Compiler
Examples from the conversations of that time:
> ...we want closures to capture the values we rendered with, and to keep "seeing" those values forever. That's really important for concurrent mode where a notion of current value doesn't really exist. Hooks design models a component as being in many non-clashing states at the same time, instead of switching the "current" state (which is what classes model well). People don't really need to think about these details, but they're motivating the design a lot. [0]
> In Concurrent Mode, render may run more then one time, and since this in a class is mutable, renders that should be the same may not be. [1]
[0] - https://github.com/reactjs/rfcs/pull/68#issuecomment-4778866...
[1] - https://tkplaceholder.io/why-function-components-fit-react-b...
- A modest request: How do you fetch data in React 18+ WITHOUT a third party dependency?
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Optimizing performance: how our extension became lightning fast
There are multiple names for this hook. You can find the documentation under the names useEvent or useEffectEvent.
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The Sisyphean Quest for Web Performance
-https://www.patterns.dev/ -https://github.com/reactjs/rfcs/blob/main/text/0188-server-components.md -https://dev.to/this-is-learning/qwik-the-post-modern-framework-3c5o -https://dev.to/this-is-learning/astro-framework-169m -https://developers.google.com/web/updates/2019/02/rendering-on-the-web -https://web.dev/vitals/
- Why Do I Need RSC(react server components) if I Already Have Remix
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Declaring JSX types in TypeScript 5.1
However, in React, function components can return a ReactNode. This type includes number | string | Iterable | undefined and will likely also include Promise( in the future.
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Is ESLint Exhaustive Deps a bad rule (sometimes)?
I was also hoping that useEvent would eliminate some weird dependency cases, who knows when that will actually happen (https://github.com/reactjs/rfcs/pull/220).
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Returning to React and looking for modern expert to sanity check
Given a lot of unknowns on SSR and ReactEng working on RSC it feels like the wrong move to use next.js and I should just use normal react. For basic react is create react app the way to go or vite?
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Server Components vs. SSR in Next.js
As mentioned before, Next.js takes a stance of treating every component as a Server Component by default. If you want to use a Client Component, you'll need to annotate the file with use client; directive at the top of the component file.
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Is it a bad idea to use the experimental "/app" directory in a professional project?
Use client is actually a React convention for what it’s worth. https://github.com/reactjs/rfcs/pull/227
What are some alternatives?
Preact - ⚛️ Fast 3kB React alternative with the same modern API. Components & Virtual DOM.
server - Tolgee is translation management cloud platform made for translating modern web applications. It works great with JS frameworks like React, Angular, Vue and others. [Moved to: https://github.com/tolgee/tolgee-platform]
htmx - </> htmx - high power tools for HTML
use-context-selector - React useContextSelector hook in userland
petite-vue - 6kb subset of Vue optimized for progressive enhancement
react-refresh-webpack-plugin - A Webpack plugin to enable "Fast Refresh" (also previously known as Hot Reloading) for React components.
react-query - 🤖 Powerful asynchronous state management, server-state utilities and data fetching for TS/JS, React, Solid, Svelte and Vue. [Moved to: https://github.com/TanStack/query]
craco - Create React App Configuration Override, an easy and comprehensible configuration layer for Create React App.
React - The library for web and native user interfaces.
react-redux - Official React bindings for Redux
zustand - 🐻 Bear necessities for state management in React
valtio - 💊 Valtio makes proxy-state simple for React and Vanilla