Why bundle a React server.js for Node?

Question

In the React Starter Kit they bundle with Webpack the server-side code into a server.js which I assumed can be handy but then I started wondering why bundling up the server-side code in the first place, after all Node comes with its own dependency management and doesn't need that. Second, wouldn't that even make it more inefficient due to parsing one whole file?

Answer 1

React code usually got written in ES6 however the Node doesn't support the es6 code yet, it can only understand es5. so if you want to use it without bundling and all the code will get complied first on the go. which will affect the performance eventually so you can use it for the development purpose but in production it is advised to use the bundled code.

So the major reason is Performance