Chapter 1: How JavaScript Works?
JS Execution: Synchronous & Single-Threaded – No Multitasking Here!
Chapter 2: How JavaScript Code Executes?
Learn about different data types in JavaScript like strings, numbers, objects, and arrays.
Chapter 3: Hoisting in JS
See how JavaScript lifts variables and functions to the top before your code starts running!
Chapter 4: How Functions Work in JS?
JavaScript functions, from declarations to invocations and everything in between!
Chapter 5: Window and This Keyword in JS
Explore how the window object and the this keyword shape the context of your code, pointing to the world and yourself!
Chapter 6: Undefined Vs Not Defined in JS
Undefined and Not defined—they may sound similar, but they behave like code opposites!
Chapter 7: Scope Chain and Lexical Environment
Scope Chain & Lexical Environment acting as JS's Variable Roadmap
Chapter 8: Let and Const in JavaScript
let and const brings block-scoping to the party, keeping your variables in check!
Chapter 9: Block Scope & Shadowing in JS
How block scope and shadowing let variables hide in different parts of your code, only to reappear when you least expect it!
Chapter 10: Closures in JavaScipt?
How closures let functions “remember” variables from their outer scope, even after the outer function has finished!
Chapter 11: setTimeout + Closures in JavaScipt
How setTimeout and closures work together to keep functions waiting while remembering their environment!
Chapter 12: First-Class & Anonymous Functions
JS treats functions as first-class citizens and lets you create anonymous functions on the fly!
Chapter 13: Callback Functions in JavaScipt
Callback functions let you pass the work to be done later, keeping your code neat and organized!
Chapter 14: Asynchronous JavaScript & Event Loop in JS
How JavaScript handles tasks asynchronously with the Event Loop, making sure nothing gets stuck!
Chapter 15: JavaScript Engine & V8 Architecture
How the JavaScript engine, with Google’s V8, turns your code into lightning-fast machine language!
Chapter 16: setTimeout Issues in JS
Learn about setTimeout issues and why your timing might not always be on point!
Chapter 17: Higher-Order Functions & Functional Programming
How higher-order functions and functional programming make your code more elegant and reusable!
Chapter 18: Map, Filter and Reduce in JavaScript
How map, filter, and reduce transform arrays into something more efficient and fun to work with!
Chapter 19: Callback Hell in JavaScript
Learn how to avoid the chaos of callback hell and write cleaner, more manageable code!
Chapter 20: Promises, Promise Chaining, Promise APIs and Error Handling
Dive into Promises, chaining, and error handling to make your asynchronous code cleaner and more predictable!
Chapter 21: Async and Await in JS?
Simplify your asynchronous code with async and await, making it read like synchronous logic!