NVM is known as Node Version Manager and provides an option for easy installation of Node.js.
You can install a specific Node.js version or multiple Node.js versions on the same system using nvm and use required version for application.
A bash script is available to install nvm on your system.
curl https://raw.githubusercontent.com/creationix/nvm/master/install.sh | bash
Reload system environment using this command. It will set the required environment variables to use nvm on the system.
source ~/.bashrc ## for CentOS/RHEL systems
to list available node.js versions.
Now install the node.js version you need to use for running node.js application.
nvm install v8.10.0
nvm lets you install multiple node.js versions. Simply repat the above nvm install with the needed node.js version.
As you have installed multiple node.js versions, You can select the specific version of node.js as default version used by system and load in the environment.
nvm use v8.10.0
If you have multiple node.js applications on your system and want to run each with a specific version of node.js. NVM provides you an option to use node.js version for running any application.
nvm run v8.10.0 app.js
will provide a list of installed versions of node.js on your system. To remove any version installed on your system use
nvm remove v7.7.2