NVM is Node Version Manager is a tool to manage multiple node.js version.
list installed version
❯ nvm ls
v8.17.0
-> v12.9.0
system
default -> 12.9 (-> v12.9.0)
node -> stable (-> v12.9.0) (default)
stable -> 12.9 (-> v12.9.0) (default)
list available version on remote (is version 14 available? If so it will list)
❯ nvm ls-remote 14
v14.0.0
v14.1.0
...
v14.13.1
v14.14.0
Install the version that you would like
❯ nvm install 14
Set version 14 (or another version) as default
nvm alias default 14
Switch to version 8 (or another version)
❯ nvm use v8
Now using node v8.17.0 (npm v6.14.8)
Cheers!