What is ReactDOMServer?

The ReactDOMServer object enables you to render components to static markup (typically used on node server). This object is mainly used for server-side rendering (SSR). The following methods can be used in both the server and browser environments:

  1. renderToString()
  2. renderToStaticMarkup()

For example, you generally run a Node-based web server like Express, Hapi, or Koa, and you call renderToString to render your root component to a string, which you then send as response.

// using Express
import { renderToString } from 'react-dom/server';
import MyPage from './MyPage';
app.get('/', (req, res) => {
res.write('<!DOCTYPE html><html><head><title>My Page</title></head><body>');
res.write('<div id="content">');
res.write(renderToString(<MyPage />));

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Made by Michael Sakhniuk