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How Does Node.js Work

This PDF provides a concise and informative overview of the inner workings of Node.js. Node.js is a powerful runtime environment that allows developers to build scalable and efficient web applications using JavaScript. This document delves into the fundamental concepts behind Node.js, explaining its event-driven, non-blocking I/O model and its use of the V8 JavaScript engine. It explores how Node.js handles concurrent requests, manages modules and dependencies, and leverages its robust ecosystem of packages and libraries.

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How Does Node.js Work

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  1. HOW DOES WORK? shivlab.com.au projects@shivlab.com.au (+61) 452 450 962

  2. INTRODUCTION Node.js is a popular open-source platform that allows developers to build server-side applications using JavaScript. It is built on the V8 JavaScript engine developed by Google and is known for its speed and efficiency. Node.js follows a non-blocking, event-driven architecture that enables it to handle a large number of concurrent connections with ease, making it particularly suited for building real- time applications that require fast and efficient data transfer.

  3. NODE.JS ARCHITECTURE Node.js follows a non-blocking, event-driven architecture, which allows it to handle a large number of concurrent connections with ease. It uses an event loop that constantly listens for incoming events and triggers callbacks whenever an event occurs. This architecture is particularly suited for building applications that require real-time communication, such as chat applications, online gaming platforms, and streaming services.

  4. NODE.JS COMPONENTS 2 1 V8 JavaScript engine Libuv Node.js uses the Libuv library to handle I/O operations asynchronously. Node.js uses the V8 JavaScript engine to execute JavaScript code on the server side. 5 Event Loop Modules 4 3 B+ HTTP Module The event loop continuously listens for new events and dispatches them to their respective callbacks. This module is particularly useful for building web applications and APIs. Node.js allows developers to use external libraries or modules to extend functionality of their apps.

  5. HOW NODE.JS HANDLES REQUESTS? When a request is received by a Node.js server, it is added to the event queue, which is processed by the event loop. The event loop then dispatches the request to a callback function that handles the request. During this time, the server remains free to handle other requests. Node.js also allows developers to use callbacks and promises to handle asynchronous code execution. This enables the server to handle multiple requests simultaneously without blocking the execution of other code.

  6. CONCLUSION In conclusion, Node.js is a powerful technology that has revolutionized the way developers build applications on the server side. Its event-driven architecture, efficient I/O operations, and vast ecosystem of modules and libraries have made it a popular choice for building high-performance and scalable applications.

  7. CONTACT US If you're looking to build an application using Node.js, a reputable Node.js development company in Australia we can help you achieve your goals. projects@shivlab.com.au shivlab.com.au (+61) 452 450 962

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