Node Cookbook - Third Edition

How it works...

When we call print, we pass in process.argv[2]; if its value is false, then we alternatively pass a dot (.) (meaning current working directory).

The argv property on process is an array of command line arguments, including the call to node (at process.argv[0]) and the file being executed (at process.argv[1]).

When we ran node meta.js my-folder, process.argv[2] had the value my-folder.

Our print function uses fs.readdirSync to get an array of all the files and folders in the specified dir (in our case, the dir was my-folder).

Functional programmingWe use a functional approach in this recipe (and elsewhere throughout this book). If this is unfamiliar, check out the functional programming workshop at http://nodeschool.io

We call ...