Downloaded 27 times
Uploaded byAmit Thakkar
Java script at backend nodejs
This document outlines an agenda for discussing JavaScript at the backend using Node.js. The agenda includes explaining what Node.js is, installing Node.js, writing a simple "Hello World" program, running Node.js applications, exploring core Node.js modules like the file system and HTTP modules, and handling HTTP requests. Key points are installing Node.js from its website, using the file system and HTTP modules to interact with files and create an HTTP server, and using a request handler to return different responses based on the URL. The presenter is introduced as an author who works with JavaScript, Node.js, and related technologies.
Java script at backend nodejs
- 1.
- 2.
- 3.
- 4.
- 5. Agenda 1. What? 2. Installing 3.Hello World.
- 6. Agenda 1. What? 2. Installing 3.Hello World. 4. How to run NodeJS Application.
- 7. Agenda 1. What? 2. Installing 3.Hello World. 4. How to run NodeJS Application. 5. NodeJS Internal Modules
- 8. Agenda 1. What? 2. Installing 3.Hello World. 4. How to run NodeJS Application. 5. NodeJS Internal Modules ○ fs(file-system) (sync vs async)
- 9. Agenda 1. What? 2. Installing 3.Hello World. 4. How to run NodeJS Application. 5. NodeJS Internal Modules ○ fs(file-system) (sync vs async) ○ http/https (HTTP Server with NodeJS)
- 10. Agenda 1. What? 2. Installing 3.Hello World. 4. How to run NodeJS Application. 5. NodeJS Internal Modules ○ fs(file-system) (sync vs async) ○ http/https (HTTP Server with NodeJS) 6. Handling HTTP Request
- 11. About Me Amit Thakkar TechBlogger @ CodeChutney.in JavaScript Lover Working on MEAN Stack Twitter: @amit_thakkar01 LinkedIn: linkedin.com/in/amitthakkar01 Facebook: facebook.com/amit.thakkar01
- 12.
- 13.
- 14.
- 15. You can checkoutDemo form: https://github.com/AmitThakkar/JavaScript-at-Backend-NodeJS
- 16. How to runNodeJS App?
- 17. You can checkoutDemo form: https://github.com/AmitThakkar/JavaScript-at- Backend-NodeJS
- 18. Node Internal Modules:fs (function (require) { var fs = require('fs'); fs.unlinkSync('test2'); console.log('successfully deleted test2'); })(require);
- 19. Node Internal Modules:fs (function (require) { var fs = require('fs'); fs.unlinkSync('test2'); console.log('successfully deleted test2'); })(require);
- 20. Node Internal Modules:fs (function (require) { var fs = require('fs'); fs.unlinkSync('test2'); console.log('successfully deleted test2'); })(require);
- 21. Node Internal Modules:fs (function (require) { var fs = require('fs'); fs.unlink('test', function (err) { if (err) throw err; console.log('successfully deleted test'); }); })(require);
- 22. Node Internal Modules:fs (function (require) { var fs = require('fs'); fs.unlink('test', function (err) { if (err) throw err; console.log('successfully deleted test'); }); })(require);
- 23. Node Internal Modules:fs (function (require) { var fs = require('fs'); fs.unlink('test', function (err) { if (err) throw err; console.log('successfully deleted test'); }); })(require);
- 24. You can checkoutDemo form: https://github.com/AmitThakkar/JavaScript-at- Backend-NodeJS
- 25. Node Internal Modules:http var http = require("http"); var server = http.createServer(requestHandler); server.listen(9999, function() { console.log('Server running at http://localhost:9999/'); }); function requestHandler(request, response) { console.log("Request received."); response.writeHead(200, {"Content-Type": "text/plain"}); response.write("Hello World"); response.end(); }
- 26. Node Internal Modules:http var http = require("http"); var server = http.createServer(requestHandler); server.listen(9999, function() { console.log('Server running at http://localhost:9999/'); }); function requestHandler(request, response) { console.log("Request received."); response.writeHead(200, {"Content-Type": "text/plain"}); response.write("Hello World"); response.end(); }
- 27. Node Internal Modules:http var http = require("http"); var server = http.createServer(requestHandler); server.listen(9999, function() { console.log('Server running at http://localhost:9999/'); }); function requestHandler(request, response) { console.log("Request received."); response.writeHead(200, {"Content-Type": "text/plain"}); response.write("Hello World"); response.end(); }
- 28. Node Internal Modules:http var http = require("http"); var server = http.createServer(requestHandler); server.listen(9999, function() { console.log('Server running at http://localhost:9999/'); }); function requestHandler(request, response) { console.log("Request received."); response.writeHead(200, {"Content-Type": "text/plain"}); response.write("Hello World"); response.end(); }
- 29. Node Internal Modules:http var http = require("http"); var server = http.createServer(requestHandler); server.listen(9999, function() { console.log('Server running at http://localhost:9999/'); }); function requestHandler(request, response) { console.log("Request received."); response.writeHead(200, {"Content-Type": "text/plain"}); response.write("Hello World"); response.end(); }
- 30. You can checkoutDemo form: https://github.com/AmitThakkar/JavaScript-at- Backend-NodeJS
- 31. Handling HTTP Request varrequestHandler = function (request, response) { var data = ""; switch (request.url) { case "/" : data = "HelloWorld"; break; case "/me" : data = "This is Me!"; break; default : data = "You lose in space"; } response.writeHead(200, {"Content-Type": "text/plain"}); response.write(data); response.end(); };
- 32. Handling HTTP Request varrequestHandler = function (request, response) { var data = ""; switch (request.url) { case "/" : data = "HelloWorld"; break; case "/me" : data = "This is Me!"; break; default : data = "You lose in space"; } response.writeHead(200, {"Content-Type": "text/plain"}); response.write(data); response.end(); };
- 33.
- 34. References: Create Basic HTTPServer with Node.js