subfuzion

A few questions for quickly assessing candidate's Node.js skill level

1. Write a function that simulates an asynchronous I/O function call. The function should be called ping. It should accept one argument called delay that will determine how many seconds before the function will call back with a response (pong). If no argument is provided, it should call back immediately. If the argument is greater than 3, it should call back with an error.

function ping(delay, callback) {
 // if delay is not provided, it should default to 0
 if (typeof delay === 'function') {
   callback = delay;
   delay = 0;

subfuzion

for key, val := range env {
  s := fmt.Sprintf("%s=%s\n", key, val)
  w.Write([]byte(s))
}

subfuzion

/* eslint-disable no-constant-condition, no-console, babel/no-await-in-loop */
import 'babel-polyfill'
import 'source-map-support/register'

function echo(i, badModulus = 3) {
  return new Promise((resolve, reject) => {
    setTimeout(() => {
      if (i % badModulus === 0) {
        return reject(new Error('boom'))
      }

subfuzion

Download

$ wget https://storage.googleapis.com/golang/go1.6.2.linux-amd64.tar.gz

Unarchive it

$ VERSION=1.6.2
$ OS=linux
$ ARCH=amd64

subfuzion

addr() {
  service=$1
  containerport=$2
  file=${3:-"docker-compose.yml"}
  echo $(docker-machine ip $(docker-machine active)):$(docker-compose -f $file port $service $containerport | cut -d ':' -f 2)
}

subfuzion

sudo apt-get install -y vim
sudo apt-get install -y git
sudo apt-get install -y libtool
sudo apt-get install -y automake

https://github.com/libevent/libevent

git clone [email protected]:libevent/libevent.git

subfuzion

function addr {
  service=$1
  containerport=$2
  file=${3:-"docker-compose.yml"}
  echo $(docker-machine ip $(docker-machine active)):$(docker-compose -f $file port $service $containerport | cut -d ':' -f 2
}

subfuzion

# Inspirations:
# http://mutelight.org/practical-tmux
# http://zanshin.net/2013/09/05/my-tmux-configuration/
# http://files.floriancrouzat.net/dotfiles/.tmux.conf
# http://stackoverflow.com/questions/9628435/tmux-status-bar-configuration
# https://github.com/Lokaltog/powerline
# https://github.com/remiprev/teamocil
# http://superuser.com/questions/74492/whats-the-best-prefix-escape-sequence-for-screen-or-tmux
# http://blog.hawkhost.com/2010/07/02/tmux-%E2%80%93-the-terminal-multiplexer-part-2/
#

subfuzion

'use strict';

var promisify = require('promisify-lite');
var fs = require('fs');

fs = promisify(fs);

let f = require('path').join(__dirname, './file.txt');

fs.readFileAsync(f, 'utf8')

subfuzion

version: "2"

services:
  voting-app:
    image: docker/example-voting-app-voting-app
    ports:
      - "80:80"
  result-app:
    image: docker/example-voting-app-result-app
    ports: