multi-countwords/app.js

it is a npx cli project which can count words in any file

#!/usr/bin/env node

import fs, { readFile } from "fs/promises"

if(process.argv.length === 2) {
  console.log('Pass File path', '\r\n\r\n', 'example = count {filepath} {wordstosearch}', '\r\n\r\n', 'you can search multiple words by seprating them with space');
  process.exit()
} else if (process.argv.length === 3) {
console.log('Pass at least one word');
process.exit()
}

const filePath = process.argv[2]

const passedWords = process.argv.slice(3, process.argv.length)

//  console.log(passedWords);

const fileContent = await readFile(filePath, "utf-8")

const wordsArray = fileContent.split(/[\W]/).filter((word) => word)

const wordsCount = {}

wordsArray.forEach((word) => {
  if (wordsCount[word]) {
    wordsCount[word] += 1
  } else {
    wordsCount[word] = 1
  }
})

const keys = Object.keys(wordsCount)

function keepSameWords(wordobj, words) {
  const toFind = keys.filter((key) => words.includes(key))

  keys.forEach((key) => {
    if (toFind.includes(key)) {
    } else {
      delete wordobj[key]
    }
  })

  if (JSON.stringify(wordobj) === "{}") {
    console.log(
      "\x1b[94m%s\x1b[0m \x1b[1m\x1b[91m%s\x1b[0m",
      "words not found:",
      `${words.join(", ")}`
    )
    // console.log(wordsCount)
  } else {
    console.log(wordobj)
  }
}

const wordsCountClone = { ...wordsCount }

keepSameWords(wordsCountClone, passedWords)