Namaste Node.js

Any application that can be written in javascript will eventually be written in javascript -- Jeff Atwood. Founder, StackOverflow

Index

1. Introduction to Node.js

   • What is Node.js
   • Why Node.js was created
   • History of Node.js
   • What is NPM

2. JS on Server

   • What is a server
   • What is a web server
   • What is a Javascript engine
   • How Node.js enabled Javascript to run everywhere
   • Why Node.js is required when V8 alone can compile and execute javascript
   • What is JIT Compilation
   • What is ECMAScript
   • Why ECMAScript is required
   • What is ES6
   • What is Babel
   • What is a Transpiler

3. Skipping

   • Node.js installation
   • Global object

4. module.exports & require

   • What is a module
   • Why are modules required
   • How to use a module
   • How to create a module
   • Grouping modules together
   • CommonJS Modules Vs ES Modules
   • Default export Vs Named export

5. Diving into the Node.js github repo

   • How variables and functions became private in a module when imported using require()
   • How require method works
   • Simple require pseudo code
   • More about module argument of module wrapper
   • More about exports argument of module wrapper
   • Other arguments of module wrapper

6. libuv & async IO

   • Synchronous Vs Asynchronous execution
   • How Javascript shows Asynchronous behaviour?
   • Simple workflow of handling async tasks
   • Simple Async code execution
   • What is libuv library
   • What is libuv's thread pool?
   • Why the term "Asynchronous I/O"
   • Why the term "Non-Blocking I/O"
   • What is callback queue (task queue)?
   • Callback queue vs Microtask queue
   • Concurrency Vs Parallelism