word-counter-ac/app.js

A simple word counter CLI package

#!/usr/bin/env node

import fs from 'node:fs/promises'

const [,,filePath, word] = process.argv;

const textContent = await fs.readFile(filePath, 'utf-8')

const wordsCount = {};
const words = textContent.split(/[\W]/).filter(w => w);

for (let word of words) {
    word = word.toLowerCase();
    if(!(word in wordsCount)) {
        wordsCount[word] = 0;
    } 
    wordsCount[word] += 1;
}

// console.log(wordsCount)
console.log(`The word '${word}' has occured ${wordsCount[word]} times.`)