Sysetup

function makeIterator(){
    var nextIndex = 0;
    return {
       next: function(){
           return  nextIndex < 5 ? { value: nextIndex++, done: false} : {done: true}
       }
    }
}

var it = makeIterator();

Sysetup

var sayings = new Map();
sayings.set("dog", "woof");
sayings.set("cat", "meow");
sayings.set("elephant", "toot");
sayings.size; // 3
sayings.get("fox"); // undefined
sayings.has("bird"); // false
sayings.delete("dog");
sayings.has("dog"); // false

Sysetup

var server = require("./server");
var router = require("./router");
server.start(router.route); //Injecting router as parameter.

Sysetup

var http = require("http");

//Ways to print JSON per console:

console.log('http: '+http);

console.log(JSON.stringify(http, null, 4));

console.log(JSON.parse(JSON.stringify(http, null, 4)));

Sysetup

//***************************
//sayhello.js
var sayhello1 = function() {  };
var sayhello2 = function() {  };
exports.sayhello1 = sayhello1;
exports.sayhello2 = sayhello2;

//index.js
var x = require('./sayhello.js');
x.sayhello1();

Sysetup

<span><script>document.write(name+' '+middlename+' '+ lastname)</script></span>
<span><script>getQueryVariable("n");</script></span>

Sysetup

<div class="load-container">
    <img src="img/logo.gif" alt="logo" class="loading"/>
</div>
<div>
  <img src="img/sequence/Frame0001.jpg" alt="" class="sequence" id="myimg">
</div>

Sysetup

var express = require('express');
var app = express();
var server = app.listen(3000);


function logger(req,res,next){
  console.log(new Date(), req.method, req.url);
  next();
}

Sysetup

<div class="list-group">
  <!-- loop over blog posts and render them -->
  <% posts.forEach((post) => { %>
    <a href="/post/<%= post.id %>" class="list-group-item">
      <h4 class="list-group-item-heading"><%= post.title %></h4>
      <p class="list-group-item-text"><%= post.author %></p>
    </a>
  <% }) %>
</div>

Sysetup

'use restrict';

/**
 * Local module dependences.
 */
var db 			= require('./db');

/**
 * Function that get all data entered in the signup form, check if user exist calling db.engine.findByUsername() function. Return the properly messages to the view according if user exist and password match. 
 *