Overview

• What is Nodejs?
• V8Engine
• Lifecycle
• Simple Server

What is Nodejs?

It's an open-source, cross-platform JavaScript runtime environment that allows developers to build various applications

Here are some of the things you can build with Node.js:

• Web applications: Node.js is a popular choice for building real-time web applications and APIs.
• Command-line tools: You can write command-line tools and scripts using Node.js
• Microservices: Node.js is well-suited for building microservices, which are small, independent services that work together to form a larger application.

V8Engine

Node.js runs on the V8 JavaScript engine, the core of Google Chrome, outside of the browser. This allows Node.js to be very performant.

Lifecycle

A Node.js app runs in a single process, without creating a new thread for every request. Node.js provides a set of asynchronous I/O primitives in its standard library that prevent JavaScript code from blocking, making blocking behavior the exception rather than the norm

Simple Server

app.js

const http = require('http');
const server = http.createServer((req, res) => {
  console.log(req);
});
server.listen(3000);