Does React use server-side-rendering or client-side-rendering?

Question

In an article I read that

React uses server-side rendering.

But in another articles I came across this:

Client-Side-Rendering is a relatively new approach to rendering websites, and it didn't really become popular until JavaScript libraries started incorporating it into their style of development. Some notable examples are Vue.js and React.js

Now Which statement is correct?

When I use create-react-app and run npm start, it seems to me that React uses the Client-Side-Rendering. isn't it?

Answer 1

It’s client side. But React, like some other client side libraries, can be used on the server to prerender it with node, usually for SEO.