mistercoffee66

/* eslint no-console: 0 */
/* eslint no-unused-vars: 0 */
const https = require('https');

const goodUrl = 'https://jsonplaceholder.typicode.com/users/1';
const badUrl = 'https://jsonplaceholder.typicode.com/foo';
const badDomain = 'https://no.such.url';

const externalCall = (url, t = 0) => new Promise((resolve, reject) => {
  setTimeout(() => {

mistercoffee66

import React, { createContext, useState } from 'react';
import PropTypes from 'prop-types';

const mq = 'screen and (max-width: 671px)';

const ResponsiveContext = createContext();

const ResponsiveContextProvider = ({ children }) => {
  const [isMobile, setIsMobile] = useState(window.matchMedia(mq).matches);
  matchMedia(mq).addEventListener('change', e => setIsMobile(e.matches));

mistercoffee66

const net = require('net');

const getOpenPort = async (port, maxPort) => {
  const isPortAvail = (currentPort) => new Promise((resolve, reject) => {
    const tester = net.createServer()
      .once('error', (err) => (err.code === 'EADDRINUSE' ? resolve(false) : reject(err)))
      .once('listening', () => tester.once('close', () => resolve(true)).close())
      .listen(currentPort);
  });