Code splitting: React.lazy() example is missing a Suspense wrapper

I'm not quite sure if this is intentional to only demonstrate how React.lazy() is used, if the API how lazy() works was changed after that part of the docs have been written already, if I am using it incorrectly or if it is actually wrong but in the example but in the code splitting guide you're using a component wrapped in a React.lazy() and do not wrap it in a <Suspense>:

https://reactjs.org/docs/code-splitting.html#reactlazy

When I do that I get an error message:

A React component suspended while rendering, but no fallback UI was specified.

Source

Two paragraphs later Suspense is introduced and then a working example is shown where the lazy-loaded component is correctly wrapped in <Suspense> but I don't know if it is a good idea to have a non-functioning example in the documentation in the first place as it might be misleading.

阅读链接 URL 上代码拆分指南中的 React.lazy 部分，并将其中的示例与后面的 Suspense 示例进行比较。使用链接的 CodeSandbox 重现该行为，然后更新文档，使 lazy-loading 示例准确无误，并且不会让读者误解所需的 fallback UI。