The react
package contains React.createElement()
, React.Component
, React.Children
, and other helpers related to elements and component classes. You can think of these as the isomorphic or universal helpers that you need to build components. The react-dom
package contains ReactDOM.render()
, and in react-dom/server
we have server-side rendering support with ReactDOMServer.renderToString()
and ReactDOMServer.renderToStaticMarkup()
.