Node.Js
Node.js is a cross-platform, open-source server environment that can run on Windows, Linux, Unix, macOS, and more. Node.js is a back-end JavaScript runtime environment, runs on the V8 JavaScript Engine, and executes JavaScript code outside a web browser.
Setting up your development environment for Node.js can seem like a daunting task, especially if you're new to the world of web development. However, with the right tools and a bit of guidance, you'll be up and running in no time.
First, you'll need to download and install Node.js on your computer. Node.js is a JavaScript runtime that allows you to run JavaScript code outside of a web browser. It comes with the npm package manager, which makes it easy to install and manage dependencies for your projects. You can download the latest version of Node.js from the official website (https://nodejs.org/) and follow the instructions to install it on your operating system.
Once you have Node.js installed, you can verify that it's working by opening a terminal or command prompt and running the command node -v. This should display the version of Node.js that you have installed. You can also run the command to check the version of npm that's installed.
npm -v
Next, you'll want to choose an Integrated Development Environment (IDE) to use for writing and debugging your code. There are many IDEs available for Node.js development, but some popular choices include Visual Studio Code, Atom, and Sublime Text. These IDEs provide features such as syntax highlighting, code completion, and debugging tools that can make your development experience more efficient and enjoyable.
Once you have your IDE set up, you can start creating a new Node.js project. You can create a package.json file which contains all your project dependencies, scripts, version and others information. To create a package.json, open your command line interface, navigate to your project folder and type :
npm initThis command will prompt you to fill out some information about your project, such as the name and version. Once you have filled out the information, the package.json file will be created in your project folder.
To install packages you will use npm package manager. You can install packages by running the command
npm install <package-name>@<version>
or
npm i <package-name>
You'll also want to set up a package.json script to start your node server. It usually is as simple as:
"scripts": {
"start": "node index.js"
},
Now you're ready to start writing some code! A good practice is to create a new directory within your project directory called src (or something similar) to store your project's source files. You can then create a file called index.js or server.js in this directory to serve as the entry point for your project.
To start your server you can use command :
npm start
It will start your node server, you can use your browser and hit command below (or whichever port you are using) to see the output.
localhost:3000Additionally, you should use a package manager to manage the dependencies and to avoid versioning conflicts. Npm (node package manager) which is shipped with Node.js is the most popular package manager. It's easy to use, you can install packages by running npm install <package-name>, and also you can use the --save flag to save the package as a dependency in your package.json file.
Node.js is often used to build server-side web applications in Organizations. One of such ecommerce development company in delhi is scrrum labs located in New Delhi which uses NodeJs .
One of the main advantages of using Node.js is that it allows for the use of a single language (JavaScript) for both client-side and server-side code, making it easier for developers to work on both parts of an application.Node.js is commonly used to build real-time applications such as Mobile Application Development ,chat applications, online gaming, and other interactive applications that require a low-latency connection between the client and the server.
