Can I use JSX with a CDN setup?
Only by adding Babel in the browser, which compiles JSX at runtime. It works for learning but is slow and not how production works. A bundler compiles JSX at build time, which is far better.
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More FAQs in React via CDN vs via Bundler: Which Should Beginners Use?
Start with the CDN for the first few lessons to understand what React and ReactDOM do, then switch to a bundler. The CDN focuses on concepts; the bundler is needed for any real project.
The CDN does not support clean JSX, file splitting, or npm packages. Staying on it teaches habits that do not transfer to real projects and leaves you unable to set up a proper React app.
As soon as you understand basic rendering and createRoot. After that, the CDN becomes painful because you cannot use JSX cleanly or install packages, so switch to a bundler like Parcel or Vite.
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