We will be using Homebrew to install Node.js, Homebrew makes it more easier to install and upgrade Node.js.
Downloading and installing Homebrew (XCode need to be installed)
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
You can install Node.js by entering this command.
brew install node
To check everything is working correctly you can run.
Now you have Node.js installed on your Mac