如果你在用 React 19 / Next.js 15 / 16， 这篇就当是一个温柔但坚决的催命信： Vercel 已经出手，在它的全球 Web Application Firewall（WAF）上， 加了一层拦截规则，免费帮所有托管在上面的项目挡一波。

Learn the key concepts behind React and how to use JSX elements and components to build lean and fast web front ends React, also known as ReactJS, is an open source JavaScript library for building ...