How can I verify and update the Node.js version on Ubuntu?

To check your current NodeJS version, you can use the following command: node -v.

If you want to change your NodeJS version, you can use a node version manager.

The easiest way to accomplish this is by running the following command: $ npm install -g n. This will install the Node version manager globally on your system.

Once installed, you can change your current NodeJS version using the command n (version), where (version) represents the desired NodeJS version you want to switch to. For example, n 4.0.0 will switch to NodeJS version 4.0.0.

To check your version in Linux terminal, use the following code: node -v.

If you want to upgrade to the stable version, execute the following commands one by one:

sudo npm cache clean -f
sudo npm install -g n
sudo n stable