wesdeveloper

function media(...arguments) {
	total = arguments.reduce((a,b) => a+b);
	return total/arguments.length;
}

console.log(media(12,6,6,3));

wesdeveloper

const fs = require('fs')

let texto = 'Coffee is life!'

const escreve = (file, texto) => new Promise((resolve, reject) => fs.writeFile(file, texto, (err) => err ? reject(err) : resolve()))

escreve('teste.txt', texto)
	.then(() =>	console.log('Deu certo..'))
	.catch(() => console.log('Deu ruim... TRATAR'))

wesdeveloper

import React from 'react'
import ChipInput from 'material-ui-chip-input'

class Chip extends React.Component {
	constructor(props) {
		super(props)
		this.state = {
			chips: [],
			limit: 3
		}

wesdeveloper

const request = require('request')

const [comand, path, ...urls] = [...process.argv]
const searchs = []

const searchHttp = (url) => new Promise((resolve, reject) => 
	request(url, (err, response, body) => err ? reject(err) : resolve(body)))

urls.map((url) => searchs.push(searchHttp(url)))
Promise.all(searchs).then((results) => 

wesdeveloper

//Dockerfile
FROM node:8.4.0

ENV HOME=/home/app

COPY package.json $HOME/node_todo/

WORKDIR $HOME/node_todo

RUN npm install --silent --progress=false

wesdeveloper

const channels = ["ESL_SC2", "OgamingSC2", "cretetion", "freecodecamp", "storbeck", "habathcx", "RobotCaleb", "noobs2ninjas"];

const colorsListItem = ["--yellow", "--coral", "--purple"];

// Showing channel names and adding colored item
for(i=0;i<channels.length;i++){
  // Creating random value for item color
   function randomColor(){
  number = Math.floor(Math.random()*colorsListItem.length);
   color = colorsListItem[number];

wesdeveloper

const ThousandsSeparatorRegex = () => {
  const format = (value, separator = ',') => {
    const formatToThousands = (str, formater = ',') => str.toString().replace(/\B(?=(\d{3})+(?!\d))/g, formater);

    if (value >= 0 || (value.length >= 0 && value.length <= 15)) {
      const formatedThousands = formatToThousands(value, separator);
      return formatedThousands;
    } else if (value < 0) {
      const formatedThousands = formatToThousands(value, separator);
      return formatedThousands;

wesdeveloper

const server = require('net').createServer();

const sockets = {};
let counter = 0;

server.on('connection', socket => {
  socket.id = counter++;

  console.log('Client connected!');  
  socket.write('Please type your name: ');

wesdeveloper

function showPhrase() {
  phrase = 'JavaScript é sensacional!';
  console.log(phrase);
}

showPhrase(); // JavaScript é sensacional!

console.log(phrase); // JavaScript é sensacional!

wesdeveloper

function showPhrase() {
  if (true) {
    let phrase = 'JavaScript é sensacional!';
    console.log(phrase); // JavaScript é sensacional!
  }
  console.log(phrase); // prhase is not defined
}
  
showPhrase();