Programmer Raja (தமிழன்) hi,
Node is a runtime environment for backend purposes.
Among other things you'll have to learn,how to create a server, http requests, how to handle them,Ajax, as well as modules, how to import them and use them(npm and cli)...
To build a complete app, you'll need to know how to articulate all those things in the node environment...
https://www.tutorialspoint.com/nodejs/index.htm
https://www.freecodecamp.org/news/what-exactly-is-node-js-ae36e97449f5/amp/
also found on sololearn, that course:
https://www.sololearn.com/learn/9660/?ref=app
