dcortesnet

const array2D = [
  [1, 2, 3],
  [4, 5, 6],
  [7, 8, 9],
];

for (let cols = 0; cols < array2D.length; cols++) {
  for (let rows = 0; rows < array2D[cols].length; rows++) {
    const element = array2D[cols][rows];
    console.log(element);

dcortesnet

const { google } = require("googleapis");

const auth = new google.auth.GoogleAuth({
  keyFile: "credentials.json",
  scopes: "https://www.googleapis.com/auth/spreadsheets",
});

const main = async () => {
  const client = await auth.getClient();
  const googleSheets = google.sheets({ version: "v4", auth: client });

dcortesnet

// npm install xlsx
const xlsx = require("xlsx");
const file = xlsx.readFile("./data.xlsx");

let data = [];
let sheets = file.SheetNames; // ["Hoja1", "Hoja2"];

for (let index = 0; index < sheets.length; index++) {
  const jsonSheet = xlsx.utils.sheet_to_json(file.Sheets[sheets[index]]);
  data.push(jsonSheet);

dcortesnet

const fs = require("fs");

fs.readFile("./text.txt", "utf8", (err, data) => {
  if (err) throw err;

  const arr = data.toString().replace(/\r\n/g, "\n").split("\n");

  arr.forEach((item, index) => {
    console.log(`Line ${index + 1} - Item: ${item}`);
  });

dcortesnet

const fs = require("fs");
const data = fs.readFileSync("./text.txt", { encoding: "utf-8", flag: "r" });
const arr = data.toString().replace(/\r\n/g, "\n").split("\n");
console.log(arr);

dcortesnet

const fs = require("fs");
const arr = ["JBKR23", "TN9728"];
fs.writeFileSync("./text_copy.txt", arr.join("\n"));
//JBKR23
//TN9728

dcortesnet

const factorial = (num) => {
  if (num <= 1) {
    return 1;
  }
  return num * factorial(num - 1);
}
console.log(factorial(5)); // 120

dcortesnet

const randomNumber = (until) => {
  return Math.floor(Math.random() * until);
};

console.log(randomNumber(20));

dcortesnet

function countdown(n){
  if(n < 1){
    return []
  }
  const countArray = countdown(n - 1);
  countArray.unshift(n)
  return countArray;
}

console.log(countdown(5));

dcortesnet

openapi: "3.0.2"
info:
  title: API docs
  version: "1.0"
servers:
  - url: https:ma-autored
paths:
  /v1.0/paises/CL/vehiculo/{patente}:
    get:
      tags: