Getting ready

Let's create a new folder called watching-files-and-directories, create a package.json in the folder, and then install the third-party human-time module for nicely formatted time outputs:

$ mkdir watching-files-and-directories 
$ cd watching-files-and-directories 
$ npm init -y 
$ npm install --save human-time 

We'll also create a file to watch:

$ echo "some content" > my-file.txt 

Finally, we want to create a file called watcher.js (inside the watching-files-and-directories folder) and open it in our favorite editor.