- It uses an event-driven, non-blocking I/O model, which makes it highly efficient and well-suited for real-time applications, scalable APIs, and data-driven applications.
- Node.js comes with a built-in package manager called NPM (Node Package Manager) that simplifies the process of managing external dependencies, sharing, and re-using code among various projects.
This innovative approach simplifies and accelerates web development processes, enabling developers to create a unified development environment, which improves their ability to build, test, and deploy software applications more seamlessly.
Additionally, with its strong supportive community and extensive libraries (npm packages), Node.js has become an essential tool for modern developers, powering numerous high-traffic websites and a wide range of applications worldwide.
This highly versatile ecosystem is designed around a single-threaded event loop, which is the core foundation of its non-blocking I/O model. Node.js achieves high levels of concurrent connections using this approach.
Examples of Node.js
Walmart: Walmart, one of the largest retail corporations in the world, significantly improved their online platform by using Node.js. During the application development process, they were able to create a single-page, real-time application, which helped them manage their server load efficiently during periods of high traffic, such as Black Friday events.
LinkedIn: The professional networking platform, LinkedIn, migrated its mobile app backend from Ruby on Rails to Node.js in order to make it more lightweight and scalable. This resulted in a reduction in server usage (from 30 servers to just 3) and improved performance, with the new system being 20 times faster than the previous one.
Netflix: As the world’s leading subscription-based streaming service, Netflix turned to Node.js when they decided to redesign their web application for better performance and lower resource consumption. Adopting Node.js helped Netflix reduce their application startup time by 70%, allowing them to provide a faster streaming experience for millions of users.
What is Node.js?
Why is Node.js so popular?
What is npm?
npm, which stands for Node Package Manager, is the default package manager for Node.js. It provides a large ecosystem of libraries and modules, making it easier for developers to find and include pre-built functionality into their projects. npm helps in managing dependencies, installing new packages, and updating existing ones.
How does Node.js handle concurrency?
Node.js handles concurrency through an event-driven, non-blocking I/O model. This means that, instead of creating a separate thread or process for each incoming request, Node.js uses a single thread and an event loop to manage and process multiple requests simultaneously. This approach allows Node.js to have high concurrency with relatively low resource usage.
Related Technology Terms
- Non-blocking I/O
- Event-driven programming
- npm (Node Package Manager)