#React React 19.2 新增 <Activity> 组件，可在保留状态的前提下以最低优先级渲染隐藏内容，显著降低主线程压力并加速交互响应。
配套推出的 Performance Tracks 把 React 内部任务、组件渲染与 SSR 耗时一次性可视化，让开发者快速定位并消除拖慢 INP 的瓶颈。

https://calendar.perfplanet.com/2025/react-19-2-further-advances-inp-optimization/

Web Performance Calendar

React 19.2. Further Advances INP Optimization

Last year, in the article “5 tips to effectively optimize INP in React,” we focused on what developers often underestimate when optimizing React.

React is not automatically fast, and long JavaScript tasks can arise from perfectly common constructs. A larger…

浏览器处理 Base64 数据有多快？ —— 在大多数现代硬件下，速度都能轻松上 GB/s，就是 Firefox 和 Servo 慢点。

https://lemire.me/blog/2025/11/29/how-fast-can-browsers-process-base64-data/

Daniel Lemire's blog

How fast can browsers process base64 data?

Base64 is a binary-to-text encoding scheme that converts arbitrary binary data (like images, files, or any sequence of bytes) into a safe, printable ASCII string using a 64-character alphabet (A–Z, a–z, 0–9, +, /). Browsers use it in JavaScript to embedding…

#React 异步从手动处理迈向声明式协调

https://blog.logrocket.com/the-next-era-of-react/

LogRocket Blog

The next era of React has arrived: Here's what you need to know - LogRocket Blog

Aurora Scharff discusses React's async coordination primitives, and how React’s new era signals a fundamental shift in how devs build software.

#React 大人时代变了


https://allthingssmitty.com/2025/12/01/react-has-changed-your-hooks-should-too/

Allthingssmitty

React has changed, your Hooks should too - Matt Smith

Modern React has moved beyond overusing useEffect. Discover the Hook patterns that enable cleaner logic, fewer bugs, and scalable architecture in 2026.

#React 19 处理异步的方式

https://blog.logrocket.com/react-19-2-the-async-shift/

LogRocket Blog

React 19.2: The async shift is finally here - LogRocket Blog

Jack Herrington writes about how React 19.2 rebuilds async handling from the ground up with use(), , useTransition(), and View Transitions.

构建一个 toast 组件：热门 React 库 Sonner 的作者分享了多种设计工程方面的经验教训。

https://emilkowal.ski/ui/building-a-toast-component

Emil Kowalski

How I built Sonner, an opinionated toast library for React used by milions.

tailwind css 官方出的排序插件由于 prettier 更新导致报错的问题被修复了

https://github.com/tailwindlabs/prettier-plugin-tailwindcss/releases/tag/v0.7.2

GitHub

Release v0.7.2 · tailwindlabs/prettier-plugin-tailwindcss

Fixed

Load compatible plugins sequentially to work around race conditions in Node.js (#412)
Fix compatibility with prettier-plugin-svelte when using Prettier v3.7+ (#418)

文章《Automated Accessibility Testing for React》提出：自动化无法取代人工，但能提前拦截常见无障碍缺陷。最低成本方案是给所有 React 项目加装 eslint-plugin-jsx-a11y；若已用 React Testing Library，坚持语义查询即可同步做单元层检测。E2E 层推荐在 Cypress/Playwright 中插入 axe-core（cypress-axe 或 @axe-core/playwright），Storybook 用户可一键启用 addon-a11y。部署后可用 Lighthouse CI 或 pa11y 扫描整站。作者强调仍须键盘-only 走查与真机屏幕阅读器测试作最终兜底。
https://howtotestfrontend.com/resources/accessibility-testing-your-react-app

Howtotestfrontend

Automated Accessibility Testing for React - Tools and Best Practices you can use | How To Test Frontend

As well as testing the core functionality of your code with regular tests, you can use automated tools to test that your app or website has good accessibility. In this post, I will explain how and what tools you can use, and why manual testing is still essential...