Getting started with node.js

Getting started with node.js

• 1.
  Getting Started withNode.js Building a Hello Node.js application
• 2.
  What is Node? ➢Javascripts on your server ➢Uses V8 engine ➢Program just like the Client ➢Node adds some unique JS features
• 3.
  Some Unique Features ➢EventDriven ➢Non-blocking ➢Two way connection ➢Real time applications ➢Used by Paypal , Walmart and Groupon
• 4.
  NodeJS Challenges ➢Doesn't runon traditional servers ➢Advance javascript ➢Lots of dev install ➢A very concise API(Library) ➢Is not really for creating websites
• 5.
  Building a HelloNode.js application ➔First thing we to do to import module ➔Http module var http = require('http'); ➔Creat a server var myServer = http.createServer(function(request, response) {});
• 6.
  Building a HelloNode.js application ➔Create server request listen myServer.listen(3000); ➔Save file go to cmd ➔Run it
• 7.
  Building a HelloNode.js application var http = require('http'); //add the http module var myServer = http.createServer(function(request, response) { response.writeHead(200, {"Content-Type" : "text/plain"}); response.write("Hello"); response.end(); }); //create a server myServer.listen(3000);
• 8.
  What is Next? ★ Understanding callback execution in the event loop ★ Understanding require() and modules ★ Node Packaged Modules (NPM) ★ Modules ★ nodeJS in sense of php
• 9.
  About Me Mudassar Ali| Senior Software Engineer E Mail: sahil_bwp@yahoo.com Twitter : SahilBabu106 Skype: sahil_babu LinkedIn: pk.linkedin.com/in/sahilbabu GitHub : github.com/sahilbabu Stack Overflow: stackoverflow.com/users/2809781/mudassar-ali-sahil