What is Express.js?

Question

I am a learner in Node.js.

1. What\'s Express.js?
2. What\'s the purpose of it with Node.js?
3. Why do we actually need Express.js? How is it useful fo

Answer 1

Express is a module framework for Node that you can use for applications that are based on server/s that will "listen" for any input/connection requests from clients. When you use it in Node, it is just saying that you are requesting the use of the built-in Express file from your Node modules.

Express is the "backbone" of a lot of Web Apps that have their back end in NodeJS. From what I know, its primary asset being the providence of a routing system that handles the services of "interaction" between 2 hosts. There are plenty of alternatives for it, such as Sails.