Getting a Different Version of Node.js on Linux

In this tutorial, we will guide you through the process of getting a different version of Node.js on your Linux system. Managing multiple versions of Node.js can be helpful, especially if you're working on different projects that require different versions. This tutorial covers the use of nvm (Node Version Manager) and other methods for managing Node.js versions. Any critical updates since the original recording in 2016 have been added to ensure you have the most relevant information.

Step 1: Installing Node Version Manager (nvm)

The best way to manage multiple versions of Node.js on Linux is by using nvm. Node Version Manager allows you to easily install and switch between different Node.js versions.

1. Install nvm by running the following command in your terminal:

   curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.1/install.sh | bash
   

   This command will download and install nvm on your system.

2. Load nvm into your current terminal session:

   source ~/.nvm/nvm.sh
   

   You may also need to restart your terminal for the changes to take effect.

Critical Update (2024): The latest version of nvm is v0.39.1, which has better compatibility and improved stability. Always check the nvm GitHub page for the latest version.

Step 2: Installing Different Versions of Node.js

With nvm installed, you can now use it to install any version of Node.js you need.

1. Install a Specific Version of Node.js by running the command:

   nvm install 16
   

   Replace 16 with the version number you wish to install. For example, you can install Node.js version 18 by using nvm install 18.

2. Check the Installed Versions:

   nvm list
   

   This will show all the versions of Node.js that you have installed on your system.

3. Switch Between Versions:

   nvm use 16
   

   Use the version number that you want to activate for your current session. This allows you to switch between versions depending on the requirements of your project.

Note: As of 2024, it is recommended to use Node.js version 18 or higher for better performance and compatibility with the latest JavaScript features.

Step 3: Setting a Default Node.js Version

If you frequently use a particular version of Node.js, you can set it as the default version.

1. Set Default Version:

   nvm alias default 16
   

   Replace 16 with the version you want to set as the default. This ensures that whenever you open a new terminal session, the specified version of Node.js will be used.

Step 4: Uninstalling a Node.js Version

If you no longer need a particular version of Node.js, you can easily uninstall it.

1. Uninstall a Version:

   nvm uninstall 16
   

   This will remove the specified version from your system, freeing up space and reducing clutter.

Alternative Method: Using NodeSource

If you prefer not to use nvm, you can also install different versions of Node.js directly from NodeSource.

1. Add NodeSource Repository:

   curl -fsSL https://deb.nodesource.com/setup_16.x | sudo -E bash -
   

   Replace 16.x with the version you want to install.

2. Install Node.js:

   sudo apt install -y nodejs
   

Critical Update (2024): While NodeSource is still a viable option, using nvm is now the recommended approach for development environments, as it provides better flexibility and easier version management.

Conclusion

In this tutorial, you learned how to manage different versions of Node.js on a Linux system using nvm and NodeSource. Using nvm is the preferred method for most developers, as it allows easy installation, switching, and management of multiple Node.js versions. This flexibility is especially useful when working on multiple projects with different requirements.

Make sure to always use the latest LTS version of Node.js for stability, and consider upgrading to newer versions to take advantage of the latest features and performance improvements.