- Node.js Tutorial
- NodeJS Home
- NodeJS Introduction
- NodeJS Setup
- NodeJS First App
- NodeJS REPL
- NodeJS Command Line
- NodeJS NPM
- NodeJS Callbacks
- NodeJS Events
- NodeJS Event-Loop
- NodeJS Event-Emitter
- NodeJS Global-Objects
- NodeJS Console
- NodeJS Process
- NodeJS Buffers
- NodeJS Streams
- Node.js File Handling
- Node.js File System
- Node.js Read/Write File
- Working with folders in Node.js
- HTTP and Networking
- Node.js HTTP Module
- Anatomy of an HTTP Transaction
- Node.js MongoDB
- MongoDB Get Started
- MongoDB Create Database
- MongoDB Create Collection
- MongoDB Insert
- MongoDB Find
- MongoDB Query
- MongoDB Sort
- MongoDB Delete
- MongoDB Update
- MongoDB Limit
- MongoDB Join
- Node.js MySQL
- MySQL Get Started
- MySQL Create Database
- MySQL Create Table
- MySQL Insert Into
- MySQL Select From
- MySQL Where
- MySQL Order By
- MySQL Delete
- MySQL Update
- MySQL Join
- Node.js Modules
- Node.js Modules
- Node.js Built-in Modules
- Node.js Utility Modules
- Node.js Web Module
- Node.js Advanced
- Node.js Debugger
- Node.js Scaling Application
- Node.js Packaging
- Node.js Express Framework
- Node.js RESTFul API
- Node.js Useful Resources
- Node.js Useful Resources
- Node.js Discussion
Node.js Home
Node.js is a powerful, open-source, cross-platform JavaScript runtime built on Chrome's V8 engine. It enables developers to build scalable and high-performance applications for the web, servers, and beyond. With its non-blocking I/O and event-driven architecture, Node.js is the preferred choice for developing modern, lightweight, and efficient solutions.
Features of Node.js
1. Asynchronous and Event-Driven
- Node.js handles multiple requests simultaneously using a non-blocking I/O model.
- Example:
const fs = require('fs');
fs.readFile('example.txt', (err, data) => {
if (err) throw err;
console.log(data.toString());
});
console.log('File is being read...');
Output:
File is being read...
(Contents of example.txt)
2. Fast Performance
- Built on the V8 JavaScript engine, Node.js compiles code directly into machine code, ensuring fast execution.
- Suitable for building real-time applications like chat applications and gaming servers.
3. Scalable Solutions
- Node.js supports a single-threaded model with event looping, making it scalable for applications requiring a high number of connections.
- Example:
const http = require('http');
const server = http.createServer((req, res) => {
res.end('Hello, Node.js!');
});
server.listen(3000, () => console.log('Server running on port 3000'));
Output:
Server running on port 3000
4. NPM Ecosystem
- Node.js provides access to a rich package ecosystem via npm, the largest collection of open-source libraries.
- Easily install and manage dependencies for your projects.
5. Cross-Platform Compatibility
- Develop and deploy applications across multiple operating systems, including Windows, macOS, and Linux.
Applications of Node.js
- Web Applications: Build fast and scalable web servers and APIs.
- Real-Time Communication: Enable features like instant messaging and live updates.
- Microservices: Create modular and maintainable services.
- IoT Applications: Manage multiple device connections efficiently.
Why Choose Node.js?
- Efficiency: Handle thousands of concurrent connections with minimal resource usage.
- Community Support: Large community offering extensive support and regularly updated modules.
- Ease of Use: Leverage existing JavaScript knowledge for server-side development.
Summary
Node.js is a versatile platform for building modern, high-performance applications. Whether you're creating web servers, APIs, or real-time apps, Node.js provides the tools and flexibility needed to bring your vision to life. Get started today and harness the power of JavaScript beyond the browser!