Too Long; Didn't Read
If most of your front-end is built using <a href="https://hackernoon.com/tagged/react" target="_blank">React</a> components, it makes sense to use the same code to render your views from the backend. This <strong>pre-rendering</strong>, i.e. not waiting for your <a href="https://hackernoon.com/tagged/javascript" target="_blank">Javascript</a> to load in the web browser before components get rendered, is particularly important for SEO. Luckily, React provides functionality to render components into an HTML string, which can then be returned from the web server. However, React is a Javascript library, and therefore a Javascript runtime environment is required. If you’re using NodeJS for your backend, you’re good to go. But if you use Ruby on Rails, Go, Django, or any other non-Javascript environment, you won’t be able to use React’s server-side rendering functions directly.