 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
Node.js Training
What is Node.js?Node.js is an open-source, Javascript runtime environment on Chrome’s V8 that lets you effortlessly develop fast and scalable web applications. It utilizes an event-driven, non-blocking I/O model that makes it lightweight, efficient and excellent for data-intensive real-time applications that run across shared devices.
How does Node.js work?Node.js is an epitome of an exceptionally customizable and scalable tech. The server engine utilizes an event-based, non-blocking I/O model. This makes the adaptation of Javascript easier to the machine language providing execution of the code super fast. Thanks to Javascript and Node.js, the code operates faster in server-to-client direction. This enhances the performance ability of the web applications to the next level. To be more precise, web application development in Node.js ensures a steady and secure non-blocking I/O model, simplifying the code beautifully. Node.js runs over Google’s V8 Javascript engine, where web applications are event-based in an asynchronous manner. Node.js platform uses a “single-threaded event loop.” So, how exactly does Node.js handle concurrent requests along with a single-threaded model? Well! “Multi-threaded request-response” architecture is an event loop which is much slower and unable to handle multiple concurrent threads at a time. The platform does not follow a similar request/response multi-threaded stateless model instead it goes by a simplified single-threaded event loop model. As per Node.js developers, a specific library called “Libuv” provides this mechanism known as an event loop. This Node.js processing model is majorly based on Javascript event-based model along with the callback mechanism.
Node.js ArchitectureUnlike the traditional web-serving technique, where each request creates new thread cramping up the system RAM, Node.js operates on a single thread. This enables it to support thousands of concurrent connection handling event loops.
NPM: Node Package ManagerWhile we are trying to understand the basics of Node.js, we definitely don’t want to miss out on its built-in support for package management using npm. A popular package library – npm is the most prized possession of Node.js community. It contains millions of downloadable libraries according to the specific requirement. These massive libraries are absolutely free of cost with its registry. With each passing day, these libraries are getting bigger rapidly, making the Node.js community stronger.
What is Node.js Used for? Beat your competition with Node.js based business solutions. Let me fire some quickies for you:- Backend for Social Media Networking
- Single-page Application (SPA) Development
- Chat Application
- Data Streaming
- IoT Application
Many renowned names such as LinkedIn and Medium are rebuilt on Node.js. There is an essential combination of nodes to build a backend for a social media networking site. Node.js provides blazing-fast routing with its V8 engine along with a secure authentication. Scalability is one of the most significant factors which enriches a social media network.
Just like single page websites, Node.js can build a single-page app, where the look and feel are similar to a desktop application. Due to its versatile options, Node.js is a good fit for building social networking platforms, dynamic websites, and mailing solutions. What’s more, the asynchronous data flow quality on the backend in Node.js makes it the best bet for SPA development.
Node.js offers exclusive advanced functionalities for real-time chatbots and chat applications. The key features such as multi-user applications, intensive data, heavy traffic, across all devices are very popular in chatbots. Node.js hits the sweet spot, for it runs across different devices and covers all paradigms in chat and chatbot apps. Node.js makes it super easy to execute push notifications and server-side event loops popularly used in IMs and real-time apps.
Giants like Netflix welcomed Node.js to serve 190 countries and 100+ million hours of streaming across 120 million users and counting. Node.js has a definite edge on this as the processing files at a super-fast speed, and feather-light encodes and uploads. This has been encashed upon by many online fashion e-stores and applications with massive data streaming videos.
IoT has drastically become popular over the recent decade and ever since then Node.js is one of the most preferred solutions for organizations looking to build public and private IoT solution systems. The very core advantage of Node.js is its brilliant ability to process seamlessly concurrent requests with thousands of events released by billions of devices on its network.Thanks to Node.js event-driven server architecture and asynchronous processing relevant heavy I/O operations on IoT networks. Furthermore, Node.js operates on writable and readable channels and streams, which is why it is the most suitable platform for IoT app development.
