Simply paste that into your Terminal and it'll download the Homebrew package manager to your Mac. We can then use brew install node to install Node on our system without any worries.
Once you've done that, check your Node installation works by typing node -v and npm -v. If you get two version numbers back (that is, one for each), then you’re ready to go ahead with the rest of the book!
In order to manage the different Node versions, we could also install the Node Version Manager (NVM). Do note however that this is currently only supported by Mac at present and not Windows. To install NVM, we can use Homebrew like so:
--use Brew to install the NVM brew install nvm
--File directory mkdir ~/.nvm
--Install latest version nvm install --lts
--Ensure latest version is used nvm use node
--Remember details across sessions nano ~/.bash_profile
--Execute in every session export NVM_DIR="$HOME/.nvm" . "$(brew --prefix nvm)/nvm.sh"