const debug = require('debug')('nameOfDebugVar');
console.log("Var Val through the debugger");
let myArray= [].fill(120,0,10000);
let secondArr = myArray.map(elem => item*5);
debug("POST LOOP");

require('http');

require('express');

require('mysql');

require('dotenv');

app.post('/login',
  passport.authenticate('local', { successRedirect: '/',
                                   failureRedirect: '/login' })
);

//In NodeJS
const mongoose = require('mongoose');

//ES6 Notation
import mongoose from 'mongoose';

const mongoose = require('mongoose');
const Schema = mongoose.Schema;

const FirstPost = new Schema({
  author: ObjectID,
  lovesDJ: Boolean,
  dateHeWatchedBD: Date,
  thingsHeLoves: Array,
  favSaying: String
});

const Comment = new Schema({
  name: { type: String, default: 'hahaha' },
  age: { type: Number, min: 18, index: true },
  bio: { type: String, match: /[a-z]/ },
  date: { type: Date, default: Date.now },
  buff: Buffer
});

// a setter
Comment.path('name').set(function (v) {
  return capitalize(v);
});

// middleware
Comment.pre('save', function (next) {
  notify(this.get('email'));
  next();
});

const bcrypt = require('bcrypt');
const saltRounds = 10;
const myPlaintextPassword = 's0/\/\P4$$w0rD';
const someOtherPlaintextPassword = 'not_bacon';
//how to hash a password
bcrypt.hash(myPlaintextPassword, saltRounds, function(err, hash) {
    // Store hash in your password DB.
});

const http = require('http'),
      
//this is a callback function
makeServer = function (request,response){
   //must you want http displayed I must include the http header with suitable content type
   response.writeHead(200,{'Content-Type':'text/plain'});
   response.write('Hello world');
   response.end();
},
      
server = http.createServer(makeServer);

server.listen(3000,()=>{
  console.log('Node server created at port 3000');
});

const http = require('http'),
      url = require('url'),
 
makeServer = function (request,response){
   let path = url.parse(request.url).pathname;
   console.log(path);
   if(path === '/'){
      response.writeHead(200,{'Content-Type':'text/plain'});
      response.write('Home Page');
   }
   else if(path === '/about'){
     response.writeHead(200,{'Content-Type':'text/plain'});
     response.write('About page');
   }
   else if(path === '/ftn'){
     response.writeHead(200,{'Content-Type':'text/plain'});
     response.write('429 page');
   }
   else{
     response.writeHead(404,{'Content-Type':'text/plain'});
     response.write('Error page');
   }
   response.end();
 },
server = http.createServer(makeServer);
server.listen(3000,()=>{
 console.log('Node server created at port 3000');
});

// I use module.exports so that every program in my app can use it
module.exports.users = [
 {
  name: 'Mark Ramiro',
  age : 19,
  occupation: 'Aerospace Engineer',
  graduated : false,
  classes : ['Calc3','EPII','ChemII']
 },
  
 {
  name: '55732',
  age : 24,
  occupation: 'Developer',
  graduated : true,
  classes : ['429','375','373']
 },
 {
  name: 'Mike',
  age : 34,
  occupation: 'Full Stack Developer',
  graduated : true,
  classes : ['CALC3','EPII','OChemII']
 },
]

const express = require('express'),
      server = express(),
      users = require('./users');

//setting the port.
server.set('port', process.env.PORT || 3000);

//Adding routes
server.get('/',(request,response)=>{
    /*
    this searches for the file and sends it to the browser
    dirname is my root folder where my server is running from
    */
 response.sendFile(__dirname + '/index.html');
});

//I use response.json to websites requesting the data in JSON format
server.get('/users',(request,response)=>{
 response.json(users);
});

//Binding to localhost://3000
server.listen(3000,()=>{
 console.log('Express server started at port 3000');
});

node server.js

var fs = require('fs');

var fs = require('fs');
var myfile = fs.createReadStream('./polaanfb.txt');
myfile.on('open', function () {
  console.log('The polanfb text file is open');
});

var events = require('events');
var eventEmitter = new events.EventEmitter();//how to instantiate an event emmitter object
var theEventHandler = function () {
  console.log('2526: I Contacted 7652626 to get an A in 1336 and contacted 35 to get an A in 429');
}
eventEmmitter.on('Something happened please fire this event.', theEventHandler);//Assigning eventEmitter to theEventHandler
//firing the event

//How to emit the event
eventEmitter.emit('Emitted!');

var http = require('http');
var formidable = require('formidable');
var fs = require('fs');

var nodemailer = require('nodemailer');