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dcortesnet / javascript_array_2D.js

Last active February 14, 2023 12:56

Javascript estructura de datos array 2D

	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 / nodejs_google_sheets_api_basic.js

Last active February 14, 2023 12:51

Nodejs interacción básica con api de google sheets

	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 / nodejs_read_excel_file.js

Last active February 14, 2023 12:52

Nodejs lectura de archivo excel

	// 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 / nodejs_read_txt_async_file.js

Last active February 14, 2023 12:42

Nodejs lectura de archivo asíncono txt

	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 / nodejs_read_txt_sync_file.js

Last active February 14, 2023 12:49

Nodejs lectura de archivo síncrono txt

	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 / nodejs_write_txt_file.js

Last active February 14, 2023 12:57

Nodejs escritura de archivo síncrono txt

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

dcortesnet / javascript_cal_factorial_recursive_num.js

Last active February 14, 2023 12:48

Javascript calcular el factorial de un número con recursividad

dcortesnet / javascript_return_random_number.js

Last active February 14, 2023 12:50

Javascript retornar número random

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

	console.log(randomNumber(20));

dcortesnet / javascript_generate_array_countdown_recursive.js

Last active February 14, 2023 12:56

Javascript generar array cuenta regresiva con recursividad

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

	console.log(countdown(5));

dcortesnet / swagger_microadaptador.yml

Created May 23, 2022 15:07

Swagger estructura base open api microservicio