What is Node.JS?
Node.js is an open-source, cross-platform JavaScript runtime environment that executes JavaScript code outside of a web browser. It’s a powerful tool used for various types of projects. Let’s explore some key aspects:
- JavaScript Runtime: Node.js runs on the V8 JavaScript engine, which is also the core engine behind Google Chrome. However, unlike the browser context, Node.js executes JavaScript code outside of the browser.
- Single Process Model: A Node.js application operates within a single process, avoiding the need to create a new thread for every request. This design choice contributes to Node.js’ performance.
- Asynchronous I/O: Node.js provides a set of asynchronous I/O primitives in its standard library. These primitives prevent JavaScript code from blocking, making non-blocking behavior the norm. When performing I/O operations (e.g., reading from the network, accessing databases, or the filesystem), Node.js doesn’t waste CPU cycles waiting. Instead, it resumes operations when the response arrives.
- Concurrency Handling: Node.js efficiently handles thousands of concurrent connections using a single server. It avoids the complexities of managing thread concurrency, which can lead to bugs.
- JavaScript Everywhere: Frontend developers familiar with JavaScript can seamlessly transition to writing server-side code using Node.js. You don’t need to learn a different language.
- ECMAScript Standards: Node.js supports the latest ECMAScript standards. You can choose the version you want to use, independent of users’ browser updates.
Node.js Introduction
Node.js is an open-source and cross-platform JavaScript runtime environment. It is a powerful tool suitable for a wide range of projects. Node.js stands out as a game-changer. Imagine using the power of JavaScript not only in your browser but also on the server side.
Table of Content
- What is Node.JS?
- Why Node.JS?
- Basic Concepts of Node.JS
- Node.js Example to Create Web Server
- How Node.JS Works?
- Advantages of Node.JS
- What is Node.JS file?
- Application of Node.JS
- Common Use Cases of Node.JS
- Node.JS Ecosystem
- Learn more about Node.JS