nodejs_intern

Starting from “hello world” to making a whole beautiful dynamic web site with user-built DB.
Concepts and learning

Day 1-

• Why node.js?
• What’s the major uniqueness from other open source cross platform backend envs?
• About LTS and latest versions, installation and env setup.
• Editor used- Vscode
• basics syntaxs, and evergreen starter pack for any language “HELLO WORLD” !

Day 2-

• basic calc, to check various arithmetic operations.
• Using module.exports and require(), how can we fetch the code of other files using ‘require()’ in node.js
• core module demonstration, HTTP module on browser (created server),about usable ports and a bit of networking.

Day 3-

• setting Timer, using fucntions setTimeout() and clearTimeout().
• same with setInterval() and clearInterval().
• used callbacks, We can pass functions as parameters to other functions and call them inside the outer functions.

• Major aspect of js, Promises, how it works how its different from callback function, how it can handle the Errors!

  -if promises are fulfilled

  .then(onFullfillment)

  else

  .catch(onRejection)

• Blocking and non- blocking concept

• Synchronous and Asynchronous in node.js
  -File Handling (Fs module)
  (includes- creating, reading, writing , deleting files and other operatings in file handling, asynchronous read, synchronous read)

Day 4-

• Installation of npm, NPM is a node package manager, it is basically used for managing dependencies of various server side dependencies.
• installation of nodemon, nodemon is a tool that helps develop node.js based applications by automatically restarting the node application when file changes in the directory are detected.
• Made a chat application (ref socket.io)

Day 5-

• Express.js
• learnt about modules
• made a small demo web page using express.js
• SEO url (*imp)
• made few more types of chat-app (broadcasting, multicasting)

Day 6-

• how easy it is do just drop all those traditional methods and adapt this cool way of doing same!
• made skeleton of my web page in no time

Day 7-

• using express js only, dynamic student form has been created

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Day 8-

• used xampp server, and connected the DB

• created a small database for storing appliance details, and performed CRUD on different tables -
• C : Create
• R : Read and Insert

Day 9-

Futhermore, amended the DB performed following operations -

• U : update
• D :Delete

Day 10-

Learned about rest APIs, how they work

• created my own rest API
• rest APIs and restful APIs
• how to intergrate them in projects