Erick Wendel ErickWendel

Professional JS Educator, Microsoft MVP, Google Dev Expert, GitHub Star, OpenJS Path Finder Educator '23, @nodejs collaborator, Keynote Speaker🇧🇷

ErickWendel / 3-paths-for-replacing-text-regex.js

Created February 22, 2022 12:57

	const heroes = `NickName: Chapolin, Power: Hammer
	Nick: Batman, Power: Money
	`
	const exp = /(NickName\|Nick):\s(?<nickname>\w+),\sPower:\s(?<power>\w.*)/gm

	const matchAll = [...heroes.matchAll(exp)].map(({
	groups: {
	nickname,
	power
	}

ErickWendel / concat-streams.mjs

Last active August 15, 2024 10:17

Example of how to consume multiple Web APIs in parallel via Node.js Streams

	// npm i axios stream-concat
	import { pipeline } from 'stream/promises'
	import StreamConcat from 'stream-concat'

	import axios from 'axios'
	const API_01 = 'http://localhost:3000'
	const API_02 = 'http://localhost:4000'

	const streams = (await Promise.all([
	axios({

ErickWendel / javascript-bind-example.js

Created October 6, 2021 11:31

	class Context {
	static printSomething() { console.log('context working',) }
	static initializeTerminalWithClosure() { return () => this.printSomething() }
	static initializeTerminal() { this.printSomething() }
	}

	setTimeout(Context.initializeTerminal)
	// erro pois "this" é do contexto de setTimeout
	setTimeout(Context.initializeTerminal.bind(Context))
	// com bind você fala o que é para ter no "this" da função

ErickWendel / gde-post-contribution.js

Last active March 11, 2025 00:47

Example of how to automate contribution submissions on GDE API

	const axios = require('axios')
	class GDEAPI {
	constructor({ token }) {
	this.token = token
	}

	async submitContributions(body) {
	const headers = {
	"accept": "application/json, text/plain, /",
	"accept-language": "en-US,en;q=0.9",

ErickWendel / youtube-video-analytics.js

Created September 16, 2021 20:00

Example of how to get video views from youtube

	const YOUTUBE_KEY = "YOUR YOUTUBE KEY"
	import axios = from 'axios';

	function getVideoId(link) {
	const videoId = link.match(/v=(?<videoId>.*)/)?.groups?.videoId
	return videoId
	}

	async function getVideoViews(link) {
	const videoId = getVideoId(link)

ErickWendel / linkedin-post-analytics-example.mjs

Last active September 25, 2024 07:45

Example of how to get post Analytics such as Views from a Linkedin post

	// paste this file on a empty directory
	// npm i axios

	// You should go to your browser on Cookie session and get JSESSIONID and li_at from Linkedin Section
	const JSESSIONID = 'YOUR JSESSIONID'
	const liAT = 'YOUR li_at'

	import axios from 'axios'

	const headers = {

ErickWendel / format-sd-card-to-fat32-on-mac.sh

Created September 11, 2021 14:07

	diskutil list
	NAME=SD_NAME
	sudo diskutil eraseDisk FAT32 $NAME MBRFormat /dev/disk2

ErickWendel / ps3-controller-esp32.cpp

Last active August 7, 2021 20:04

Example of moving wheel (2 motor DC) sending PWM commands through an ESP32 and a PS3 Controller/Joystick

	#include <Arduino.h>
	#include <Ps3Controller.h>

	// https://wouterdeschuyter.be/blog/configure-a-ps3-controller-to-automatically-connect-to-a-raspberry-pi
	// http://www.squids.com.br/arduino/index.php/projetos-arduino/projetos-squids/intermediario/305-i08-como-controlar-motores-dc-com-o-driver-ponte-h-l9110-e-arduino

	// Motor A
	const uint8_t RIGHT_WHEEL_A1_A_DIR = 32; //M-A1-A
	const uint8_t RIGHT_WHEEL_A1_B_PWM = 33; //M-A1-B // PWM

ErickWendel / accent-regex.js

Last active March 30, 2021 13:47

Example of keeping only words and words which have accents on a JS String

	'N,.ã_o)d-á'.replace(/([^A-zÀ-ÿ]\|_)/g, '')

	// "Nãodá"

	// ( => starts a group
	// [^A-zÀ-ÿ]=> find only not words including with accents
	// \|_ => or find _ literally
	// ) => ends a group
	// g => global - keep searching 'till the end

ErickWendel / websocket-client.js

Last active March 3, 2025 17:04

Pure WebSocket Node.js Server using Native HTTP Module