using nvm node 12 for mac code example

Example 1: use nvm to install latest node

//lists all versions
nvm ls-remote

//installs the version you want (in this case version 14.0.0)
nvm install v14.0.0

//use the version that you installed as the default
nvm use v14.0.0

Example 2: how to install nvm in mac

$ curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.32.1/install.sh | bash