Create a CSV of the contents of a directory. #nodejs

dirToCSV.js

var fs = require('fs'),
    dir = process.argv[2] || ".",
    filenames,
    i,
    csv;
    
filenames = fs.readdirSync(dir);

for (i = 0; i < filenames.length; i++) {
    console.log(filenames[i]);
}

csv = filenames.join('\n');

fs.writeFile('contents.csv', csv, function (err) {
  if (err) throw err;
  console.log('It\'s saved!');
});