If you, like me, are working on multiple projects of Node, big projects that you can't just use the latest version of Node in all of them, you need to manage how to have multiple versions of Node on your Mac.
You can install a specific version of Node, or multiple versions of Node with NVM.
If you have brew you can install it with:
brew install npm
Alternatively, you can install it directly:
curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.35.3/install.sh | bash
Be careful if you hare behind a proxy you may have problems with your internet connection to some of these sources.
After installation is done, you can open a new terminal window and run
nvm install v12.3.1 to install version 12.3.1 or any other version. Check available versions with
After installation is done, you can switch node version with
nvm use v12.3.1
node -v to confirm everything is ok.