What is Express.js?
Express.js is a Node.js framework that is the most popular framework. It is a web application framework that provides you with a single API to build websites, web apps, and the back end.
Why do we actually need Express.js? How is it useful for us to use Node.js?
Node.js is all about core modules.
Example:- HTTP, os, path, fs, etc.
The letter on Express.js. It will take you 5-10x less time and lines of code.
The basic short of Express.js is that What you can do with node.js, you can also do it with the express, but very fast, scalable and efficient.