Make your tailored opt-in page for Node.js developers

Create a new directory for your project and navigate to it in your terminal: mkdir node-webapp cd node-webapp. npm init -y. npm express. const express = require(express); const app = express(); const PORT = process. env. PORT || 3000; app. get(/, (req, res) = { res. send(Hello, World!); }); app. node app.js.

It is used for server-side programming, and primarily deployed for non-blocking, event-driven servers, such as traditional web sites and back-end API services, but was originally designed with real-time, push-based architectures in mind. Every browser has its own version of a JS engine, and node.

Basically, NodeJs is a JavaScript runtime environment, allowing developers to develop the scalable application in a given time. It is used to , manage, and share reusable code packages or modules written in JavaScript. NPM allows open-source web developers to share and borrow packages for app development.

Its a light, scalable, and cross-platform way to execute code. It uses an event-driven I/O model which makes it extremely efficient and makes scalable network applications possible. Node. js thrives in building real-time applications, the Internet of Things, and microservices.

Because Node. js is single-threaded, we use it primarily for non-blocking, event-driven servers. We can also use Node. js for traditional websites and back-end API services, as it was designed with real-time, push-based architectures in mind.

Simple steps to serve a static HTML file npm i nodemon. npm express. const express = require(express); const path = require(path); const app = express(); app.use(express.static(path.join(dirname, public))); ​ app.get(/, async(req, res) = { res.sendFile(path.join(dirname, public, home.html)); });

Node (or more formally Node.js) is an open-source, cross-platform runtime environment that allows developers to create all kinds of server-side tools and applications in JavaScript. The runtime is intended for use outside of a browser context (i.e. running directly on a computer or server OS).

Difference in Environment The browser executes JavaScript within the Host Environment, on the client side. Browsers provide a Document Object Model(DOM) which represents the structure of web pages. Node. js provides a runtime environment that allows JavaScript to run on a server, outside the browser.