Node.js Installation

Node.js is an open-source, cross-platform, JavaScript runtime environment that executes JavaScript code outside the browser. It allows developers to build scalable, high-performance web applications using JavaScript on the server-side. In this tutorial, we'll discuss how to install Node.js on your computer.

Prerequisites

Before installing Node.js, you'll need to ensure that your computer meets the following requirements:

• Operating system: Windows, macOS, or Linux
• Processor: 32-bit or 64-bit
• RAM: 512 MB or more

Installation Steps

Follow the steps below to install Node.js on your computer:

1. Open your web browser and go to the Node.js official website.
2. Click on the "Download" button for the LTS (Long-term Support) version, which is recommended for most users.
3. Select your operating system and then download the appropriate installer.
4. Once the installer has downloaded, run it and follow the instructions in the installation wizard.
5. After the installation completes, open your command prompt or terminal and enter the command node -v to verify that Node.js has been installed correctly. This should display the version number of Node.js.

Example

Here is an example of how to install Node.js on a Windows system:

1. Open your web browser and go to the Node.js official website.
2. Click on the "Download" button for the LTS version.
3. Choose the Windows Installer option that matches your computer's architecture (32-bit or 64-bit).
4. Once the installer has downloaded, double-click on it to start the installation wizard.
5. Follow the instructions in the installation wizard to complete the installation.
6. After the installation has completed, open a command prompt and type node -v to verify that Node.js has been installed correctly.

Output

The output of the above example, if Node.js was installed successfully, would be the version number of Node.js.

v14.15.4

Explanation

In the example above, we downloaded the Node.js installer for Windows from the official Node.js website, ran the installer, and verified that Node.js was installed correctly by running the node -v command in a command prompt.

Use

Node.js is a powerful runtime environment for building scalable, high-performance web applications using JavaScript on the server-side. After installing Node.js, you can start building applications using the Node.js runtime.

Important Points

• Make sure that your computer meets the minimum system requirements before installing Node.js.
• Always download the installer from the official Node.js website to ensure that you get the latest version of Node.js.
• Install the LTS (Long-term Support) version of Node.js unless you have a specific need for a newer version.
• Verify that Node.js is installed correctly by running the node -v command in a command prompt.

Summary

In this tutorial, we discussed how to install Node.js on your computer. We covered the prerequisites, installation steps, example, output, explanation, use, and important points of Node.js installation. With this knowledge, you can now install Node.js on your computer and start building applications using the Node.js runtime.