How to install Node.js and Node Package Manager (NPM) on Mac OSX
-How to check and install Homebrew package manager on a Mac
-How to check/install XCode
-How to check/install XCode command line tools
-How to install Node JS and NPM on a Mac (using Homebrew)
-How to create a simple Node JS app to test on Mac
-How to create/execute a simple JS to test if Node JS is running/working on Mac