Node js version management

In Node.js, managing different versions of the runtime can be done using a version manager. There are several popular version managers available, such as:

1. nvm (Node Version Manager): nvm is a popular and widely-used version manager for Node.js. It allows you to easily switch between different versions of Node.js, and it also supports the installation of multiple versions of Node.js on the same system. nvm can be installed on Windows, MacOS and Linux.

2. n (Node Version Manager): n is a simple version manager for Node.js that allows you to easily switch between different versions of Node.js. It also supports the installation of multiple versions of Node.js on the same system.

3. Node Version Switcher (nvs): nvs is a lightweight version manager for Node.js that allows you to easily switch between different versions of Node.js. It also supports the installation of multiple versions of Node.js on the same system.

4. nodenv: nodenv is a Node.js version management tool that allows you to easily switch between different versions of Node.js, as well as manage different versions of Node.js for different projects.

These version managers allow you to install multiple versions of Node.js side by side and switch between them with a command line command. This makes it easy to develop and test your applications with different versions of Node.js, and also makes it easy to upgrade or downgrade your Node.js version as needed.

It is recommended to install a version manager and use it to switch between different versions of Node.js, rather than installing Node.js directly from the official website, as version managers provide more flexibility and control over the Node.js version being used.

Node Version Manager

A Node Version Manager (NVM) is a command-line tool that allows you to easily manage multiple versions of Node.js on a single machine. It allows you to install multiple versions of Node.js side-by-side, and switch between them easily. This is useful for development and testing, as it allows you to test your application against different versions of Node.js and ensure compatibility.

One of the most popular NVM for Node.js is nvm. It is supported on Windows, MacOS, and Linux, and it can be installed using a single command. Once installed, you can use nvm to install different versions of Node.js, switch between them, and manage them.

Here are some of the basic commands that can be used with the NVM (Node Version Manager) command-line tool:

1. nvm install <version>: This command is used to install a specific version of Node.js. For example, nvm install 12.18.3 installs version 12.18.3 of Node.js.

2. nvm use <version>: This command is used to switch to a specific version of Node.js. For example, nvm use 12.18.3 switches to version 12.18.3 of Node.js.

3. nvm uninstall <version>: This command is used to uninstall a specific version of Node.js. For example, nvm uninstall 12.18.3 uninstalls version 12.18.3 of Node.js.

4. nvm list: This command is used to list all the installed versions of Node.js.

5. nvm ls-remote: This command is used to list all the available versions of Node.js that can be installed.

6. nvm current: This command is used to show the currently active version of Node.js.

7. nvm alias default <version>: This command is used to set a default version of Node.js that will be automatically activated when you open a new terminal window or tab

8. nvm install-latest-npm : This command installs the latest version of npm package manager along with the Node.js version you have installed.

9. nvm run <version> -- <command> : This command runs a command with the specified version of Node.js

10. nvm deactivate: This command will deactivate nvm, so the system version of Node.js will be used instead of the version managed by nvm.

By using NVM you can manage multiple versions of Node.js on the same system and switch between them easily. This is useful for development and testing, as it allows you to test your application against different versions of Node.js and ensure compatibility.