Save dir contents to file

readdir.js

let dirToRead = 'e:/tmp';
let outputFile = 'e:/output.js';
fs.readdir(dirToRead, function(err, data){
  if (err){
    return console.log(err);
  }
  fs.writeFile(outputFile, "[\n'"+data.join("',\n'")+"'\n]");
});