Why node.js is used

Later came Node. Wikipedia defines Node. This adds additional use cases to Node. To understand how this is different from other runtimes, we need to understand how multi-threaded concurrent clients are handled in languages like Java. In a multi-threaded request-response model, multiple clients send a request, and the server processes each one before sending the response back.

However, multiple threads are used to process concurrent calls. These threads are defined in a thread pool, and each time a request comes in, an individual thread is assigned to handle it.

Since Node. So for our purposes, this single-threaded architecture is equivalent to multi-threaded architecture. When one needs to process data-intensive tasks, then using multi-threaded languages like Java makes much more sense. But for real-time applications, Node. This is thanks to the vast list of features it provides:. There has been immense growth in websites in the last 2 decades, and as expected, Node.

The popular runtime already crossed the 1-billion download threshold back in , and according to W3Techs , Node. Here are a few popular ones that use Node.

Neither is Node. The Node. To sum up, Node. As stated previously, Node. You can also run several Node. With clustering, you should still offload all heavy computation to background processes written in a more appropriate environment for that, and having them communicate via a message queue server like RabbitMQ. Even though your background processing might be run on the same server initially, such an approach has the potential for very high scalability.

Those background processing services could be easily distributed out to separate worker servers without the need to configure the loads of front-facing web servers. Remember: Node. Why use Node. If your use case does not contain CPU intensive operations nor access any blocking resources, you can exploit the benefits of Node. Welcome to the real-time web. It's open-source, including Google's V8 engine, libuv for cross-platform compatibility, and a core library.

Notably, Node. It's used for traditional web sites and back-end API services, but was designed with real-time, push-based architectures in mind. Web frameworks like Angular and React are libraries that help organize and generate the front-end code that runs in a web browser.

They reduce development time, reusing code for common operations. Some web frameworks are "full stack," meaning they also generate the back-end code that runs on a web server.

No, it's an environment, and back-end frameworks run within it. Popular ones include Express. IO for WebSocket servers. No, the ". Aside from being effective at what it does, Node. Also, it doesn't tend to break compatibility between versions in major ways. However, Node. Subscription implies consent to our privacy policy. Thank you!

Check out your inbox to confirm your invite. Engineering All Blogs Icon Chevron. This ensures that data gets stored without breaking any system. Video and audio media content files are uploaded to streaming video such as YouTube or Facebook and the same has to be processed to make it available for viewing or heard by users across the world.

The processing of these files happens after they have been uploaded. Using applications of Node. This saves a lot of time and makes media widely accessible at fast speed.

Other than video and audio, other data types such as input and output in real-time also require real-time processing to work on projects with colleagues spread halfway around the world. Mean stack makes development simple and easy both for a developer standpoint and for the devices too. MEAN can be integrated with other modules too. Example: — Mongoose is used with Node. Actually, N in Node. Uses of Node. Such systems can be easily developed with Node.

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