Node.js is an open-source runtime environment for executing JavaScript outside the browser, and it is not a framework or programming language. The MERN stack consists of MongoDB, Express.js, React, and Node.js, enabling scalable and high-performance web applications. MongoDB is a NoSQL database, while Express.js is a server framework for Node.js, and React is a library for building reusable user interface components.

1. 4
NodeJS is an open-source and cross-platform
runtime environment built on Chrome’s V8 JavaScript
engine for executing JavaScript code outside of a
browser. You need to recollect that NodeJS isn’t a
framework, and it’s not a programing language.
MERN STACK : A
brief overview of
the four
technologies
1
2
3
MongoDB is a leading NoSQL database, which is
primarily an open-source solution in enterprise
document storage. NoSQL makes it easier for
enterprises to build high-performing business
applications which can ensure scalability, high
performance, and anytime availability
Express.js is a server framework for the Node.js
web application that is designed especially to
create a single-page, multi-page, and hybrid
web applications.
React is a JavaScript library for building
user interfaces.
React is used to build single-page
applications.
React allows us to create reusable UI
components.
https://codersera.com/blog/learn-express-js/
https://www.w3schools.com/react/
https://www.geeksforgeeks.org/nodejs/
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