alok722 / namaste-javascript-notes

It maintains my version of namaste js notes which I learnt from Namaste JS YouTube Playlist by Akshay Saini (@akshaymarch7).

Welcome to Namaste Javascript Notes 🚀

❓ what it is

This repo maintains my version of javascript notes which I learned from the famous Namaste Javascript Youtube Series by Akshay Saini.

🏠 Namaste Javascript Notes Website

🚀 PDF Version of Complete Notes

📝 Content List

📌 Season 1

Episode 1 : Execution Context

Episode 2 : How JS is executed & Call Stack

Episode 3 : Hoisting in JavaScript (variables & functions)

Episode 4 : Functions and Variable Environments

Episode 5 : Shortest JS Program, window & this keyword

Episode 6 : undefined vs not defined in JS

Episode 7 : The Scope Chain, Scope & Lexical Environment

Episode 8 : let & const in JS, Temporal Dead Zone

Episode 9 : Block Scope & Shadowing in JS

Episode 10 : Closure in JS

Episode 11 : setTimeout + Closures Interview Question

Episode 12 : Famous Interview Questions ft. Closures

Episode 13 : First Class Functions ft. Anonymous Functions

Episode 14 : Callback Functions in JS ft. Event Listeners

Episode 15 : Asynchronous JavaScript & EVENT LOOP from scratch

Episode 16 : JS Engine Exposed, Google's V8 Architecture

Episode 17 : Trust issues with setTimeout()

Episode 18 : Higher-Order Functions ft. Functional Programming

Episode 19 : map, filter & reduce

📌 Season 2

Episode 20 : Callback Hell

Episode 21 : Promises

Episode 22 : Creating a Promise, Chaining & Error Handling

Episode 23 : async await

Episode 24 : Promise APIs (all, allSettled, race, any) + Interview Questions 🔥

Episode 25 : this keyword in JavaScript

✨ Testimonial

From the creator of Namaste Javascript himself, 🙌

👤 Author

alok raj ([email protected])

• website: https://alok722.github.io/
• linkedin: @alok722

🤝 Contribution Guidelines

• Please create an issue with your suggestion, if found valid I would push the fix.
• Please, Don't open the PR directly without conversation.

✨ Show your support

Give a ⭐️ if this project helped you!

namaste-javascript-notes's Issues

Episode 1: Execution Context

You wrote opposite definition in synchronous , single threaded language.

It will be -

Single-threaded:- One command at a time.
Synchronous:- In a specific synchronous order.

Error in Lecture19.me

Generate the pull request for GitHub pages and Reading section of the file

Wrong text in GIF's for the Callback queue. Episode 15 : Asynchronous JavaScript & EVENT LOOP from scratch

GIF's need to update for the callback queue text.

There are two types of queue.

• Microtask queue
• Callback queue

typo issue

Present in Episode 7 : The Scope Chain, Scope & Lexical Environment

Embed Youtube Video in Notes

Instead of the Image of the Topic, we can embed the YouTube video there?
In the watch live on YouTube section, we can also embed the video.

Error in Episode 1

Previously -
Synchronous:- One command at a time.
Single-threaded:- In a specific synchronous order.

Correct -
Synchronous:- In a specific synchronous order.
Single-threaded:- One command at a time.

Update the file name - FROM -> notes/lectures-22.md TO notes/lecture-22.md

Please change the file name :

FROM --> notes/lectures-22.md TO notes/lecture-22.md

The link is currently broken when you click on main page.

Akshay saini js

Hoisting in JavaScript (variables & functions) ( output issue)

getName(); // undefined
console.log(getName); // Uncaught TypeError: getName is not a function
var getName = function () {
    console.log("Namaste JavaScript");
}
// it is undefined because in arrow function behaves as a variable and not function.

Below is the correct one

getName(); // TypeError: getName is not a function and after this line code will not execute.
console.log(getName); 
var getName = function () {
    console.log("Namaste JavaScript");
}
// it is undefined because in arrow function behaves as a variable and not function.

Naming convention

• In the notes directory, markdown files are named as lecture-1.md, lecture-2.md etc.
• It disrupts the order in GitHub.
• Instead numbering can be done in double digits.

Ex.
lecture-01.md
lecture-02.md
.
.