Coding Challenge

var fs = require("fs")
var text = fs.readFileSync("./data.txt")
  .toString()
  .toLowerCase()
  .replace(/[^\w\s]/gi, '')
  .split("\n")

var parsed = {}

// in production I would devide this part into countWords function
for (var sentence of text) {
  words = sentence.split(' ')
  for (var word of words) {
    if (parsed[word] && word)
      parsed[word] = parsed[word] + 1
    else
      parsed[word] = 1
  }
}

const res = Object.entries(parsed)
  .sort((x, y) => x[1] > y[1] ? -1 : 0) // in production I would devide this function callback into seperated sortByNumberOfWords function 
  .map((item) => `${item[0]}    (${item[1]})`) // in production I would devide this function callback into seperated printRow function 
  .join('\n')

fs.writeFile("res.txt", res, function (err) {
  if (err) {
    return console.log(err);
  }
  console.log("The file was saved!");
});

// I would create unit test for each of devided function to make sure each of them is running correctly
// Please feel free to check my other coding challanges i did 
// https://github.com/filip505/president
// https://github.com/filip505/omdb