What is Node.js?
How does Node.js work?
Node.js uses an event-driven, non-blocking I/O model that allows it to handle multiple requests simultaneously without blocking other requests. This means that Node.js can handle a large number of requests with high efficiency, making it ideal for building scalable applications.
When a request is made to a Node.js server, it is added to an event loop, which continuously checks for new events. When an event is detected, the corresponding callback function is executed. This allows Node.js to handle multiple requests simultaneously without blocking other requests.
Key features of Node.js
Node.js has several key features that make it a popular choice among developers. Some of its key features are:
Asynchronous and event-driven
Node.js is designed to be asynchronous, which means that it can handle multiple requests simultaneously without blocking other requests. It uses an event-driven architecture that allows it to handle I/O operations efficiently.
Fast and scalable
Node.js is a cross-platform runtime environment, which means that it can run on various operating systems such as Windows, Mac, and Linux.
Node.js has a large community of developers who contribute to its development and provide support to other developers. This community has created several modules and libraries that can be easily integrated into Node.js applications.
Node.js comes with a built-in package manager called NPM (Node Package Manager) that allows developers to easily install and manage modules and libraries.
Use cases for Node.js
Numerous apps can be created with Node.js, including:
Node.js is ideal for building web applications that require real-time communication, such as chat applications and online gaming platforms.
Application Programming Interfaces (APIs), which enable various programmes to connect with one another, can be created using Node.js.
Microservices, which are compact, separate services that cooperate to create a bigger application, can be created using Node.js.
Node.js can be used to build command-line tools that automate tasks and simplify development workflows.
Downloading Node.js on Windows
To download Node.js on Windows, follow the below steps:
Once the installation is complete, you can verify if Node.js is installed correctly by opening the Command Prompt and typing "node -v". If Node.js is set up correctly, the version number will be shown.
Downloading Node.js on Mac
To download Node.js on Mac, follow the below steps:
Open the Command Prompt after the installation is finished, then type "node -v" to see if Node.js was installed correctly. If Node.js is set up correctly, the version number will be shown.
Downloading Node.js on Linux
To download Node.js on Linux, follow the below steps:
Once you have added the directory to your PATH environment variable, you can verify if Node.js is installed correctly by opening the Terminal and typing "node -v". If Node.js is set up correctly, the version number will be shown.
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The robust runtime environment of Node.js enables programmers to create scalable, high-performance applications. In this article, we discussed how to download Node.js on various operating systems and explored some of its key features. If you are new to Node.js, we recommend that you start with the official Node.js documentation, which provides a comprehensive guide to getting started with Node.js.