word-counter-cli-roshan/bin/index.js

A simple CLI to count words in a file

#! /usr/bin/env node

import {readFile} from "fs/promises"

const fileName=process.argv[2] || "file-1.txt";
const specialSearch=process.argv[3]

const fileContent=await readFile(`./${fileName}`, "utf-8")
const fileDataArray=fileContent.split(/[\W]/).filter((w)=> w)
let wordObject={}
fileDataArray.forEach((word)=>{
    if(word in wordObject){
        wordObject[word] += 1;
    }
    else{
        wordObject[word]=1;
    }
})

if(specialSearch){
    console.log(`${specialSearch} : ${wordObject[specialSearch]}`)
}
else{
    console.log(wordObject)
}