Exercicio5.js

const fs = require('fs')

function readdirPromise(path){
    return new Promise((resolve,reject) => {
        fs.readdir(path,(err,dirContent) =>{
            err ? reject(err) : resolve(dirContent)
        })
    })
}

function printFilesInDir(content,path){
    fs.stat(path, (err, stat) => {
        if (stat.isFile())
            console.log(content)
    })
}

async function listDir(path){
    const dirContent = await readdirPromise(path)
    console.log("####### All content #######")
    console.log(dirContent)

    console.log("####### List of files #######")
    dirContent.map((content) =>{
        printFilesInDir(content,path + "/" + content)
    })
}
listDir('./');

Certinho, recomendo também que de uma olhada nesse vídeo: https://www.youtube.com/watch?v=nnsz91rhWuA