populated a few example files

ex1-printHello.js

@@ -1,2 +1,17 @@
 // Outputs "Hello World" to the console
-console.log("Hello World");
+console.log("Hello World");
+
+// Variables + math operation
+var number = 1;
+number = number + 1;
+number += 1;
+console.log(number);
+
+// Strings
+var text;
+text = "How are you doing";
+console.log(text);
+
+// Adding strings, and "variable type" changing
+text = text + 2;
+console.log(text);

ex2-functionTest.js

@@ -1,2 +1,12 @@
-// Outputs "Hello World" to the console
-console.log("Hello World");
+// Raw example expand
+
+
+function text(phrase) {
+  console.log(phrase);
+}
+
+function myFunction(someFunction, value) {
+  someFunction(value);
+}
+
+myFunction(text, "Hi");

ex4-firstServer.js

@@ -1,2 +1,13 @@
-// Outputs "Hello World" to the console
-console.log("Hello World");
+// "require" is Node.js feature to "load" libraries
+// Library is loaded into variable "http"
+var http = require("http");
+
+// Starts a server, takes in a function as an argument
+http.createServer(function (req, res) {
+
+  // If someone visits the webpage, it returns a webpage with the words "Hello world"
+  res.writeHead(200, {"Content-Type": "text/plain"});
+  res.end("This is my website\n");
+
+// Have server listen on port "1337"
+}).listen(1337, "127.0.0.1");

ex5-serverExpress.js

@@ -0,0 +1,18 @@
+// Use NPM to install expressjs
+//npm install express
+
+// Set express module to variable "express"
+var express = require('express');
+
+// Create an "app" variable from the express library
+var app = express();
+
+// Add a "route" that leads to the req/res, as seen in Node.js
+app.get('/', function(req, res){
+  res.send("Express powered web page");
+});
+
+// Starts up the server
+var server = app.listen(1337, function() {
+
+});

ex8-TCPServer.js

@@ -1,2 +1,12 @@
-// Outputs "Hello World" to the console
-console.log("Hello World");
+// Load the TCP library and assign it to variable "net"
+var net = require("net");
+
+// Start the TCP server
+var server = net.createServer(function (socket) {
+  // If someone connects to the server, just repeat the message
+  socket.write("You said: \r\n");
+  socket.pipe(socket);
+});
+
+// Have the TCP server listen to port 1337
+server.listen(1337, "127.0.0.1");