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JavaScript Fundamentals

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What is JavaScript? 10 min
History of JavaScript 10 min
How JavaScript Runs 10 min
Setting Up Your Environment 10 min
Your First Script 10 min
JavaScript Syntax Basics 10 min

var, let, and const 10 min
Differences Between var, let, and const 10 min
Primitive Types Overview 10 min
Strings 10 min
Numbers 10 min
Booleans 10 min
null and undefined 10 min
Symbol 10 min
BigInt 10 min
Basic Objects and Arrays 10 min
Type Conversion and Coercion 10 min

Arithmetic Operators 10 min
Logical Operators 10 min
Bitwise Operators 10 min
Comparison Operators 10 min
== vs === 10 min

if / else 10 min
for Loops 10 min
while Loops 10 min
switch Statement 10 min
break and continue 10 min

Ternary Operator 10 min
Truthy and Falsy Values 10 min
Logical Short-Circuiting 10 min
Nullish Coalescing 10 min
Optional Chaining 10 min

Declarations vs Expressions 10 min
Parameters and Return Values 10 min
Default Parameters 10 min
Rest Parameters 10 min
Immediately Invoked Function Expressions (IIFE) 10 min

Global vs Function Scope 10 min
Block Scope 10 min
Hoisting 10 min
Closures 10 min
Closure Scope 10 min
Higher-Order Functions 10 min
Functions as Arguments 10 min
Functions as Return Values 10 min

Array Basics 10 min
forEach 10 min
map 10 min
filter 10 min
reduce 10 min
find 10 min
some and every 10 min
sort 10 min
reverse 10 min
flat and flatMap 10 min
includes 10 min
entries 10 min

Object Basics 10 min
Properties and Methods 10 min
Object.keys, values, and entries 10 min
Working with JSON 10 min

Understanding this 10 min
Context Binding 10 min
bind() 10 min
call() 10 min
apply() 10 min

What Are ES6+ Features? 10 min
Arrow Functions 10 min
Template Literals 10 min
Destructuring 10 min
Spread Operator 10 min
Rest Operator 10 min

Introduction to Modules 10 min
import / export Syntax 10 min
Default vs Named Exports 10 min
Writing Modular Code 10 min

Class Syntax 10 min
Constructors 10 min
Methods 10 min
Inheritance with extends 10 min
Static Methods 10 min
Getters and Setters 10 min

The Prototype Chain 10 min
Object.create() 10 min
__proto__ 10 min
Prototypal Inheritance 10 min

try / catch Blocks 10 min
The finally Block 10 min
Throwing Errors 10 min
Error Types 10 min
Custom Errors 10 min

Synchronous vs Asynchronous 10 min
Callbacks 10 min
Callback Hell 10 min
async / await 10 min
Error Handling with catch 10 min

Introduction to Promises 10 min
Creating a Promise 10 min
then, catch, and finally 10 min
Promise Chaining 10 min
Promise.all, race, allSettled, and any 10 min

JavaScript Engine and Runtime 10 min
The Call Stack 10 min
Microtasks 10 min
Macrotasks 10 min
Concurrency Model 10 min

Using fetch 10 min
Interacting with REST APIs 10 min
Handling JSON 10 min
What Is CORS? 10 min
Why CORS Exists 10 min
Solving CORS Errors 10 min

Pure Functions 10 min
Immutability 10 min
Currying 10 min
Function Composition 10 min

Generators 10 min
Async Iterators 10 min
Observables (e.g. RxJS) 10 min

Proxies 10 min
Reflect 10 min
Symbols 10 min
Iterators ([Symbol.iterator]) 10 min

Garbage Collection 10 min
Avoiding Memory Leaks 10 min
Weak References (WeakMap) 10 min

Memoization 10 min
Lazy Loading 10 min
Debouncing 10 min
Throttling 10 min

Preventing XSS 10 min
Preventing CSRF 10 min
Sanitizing Input 10 min

Module Pattern 10 min
Factory Pattern 10 min
Singleton Pattern 10 min
Observer Pattern 10 min

Console Methods 10 min
Browser DevTools 10 min
Breakpoints and Stepping 10 min
Debugging Common Errors 10 min

Types of Testing 10 min
Unit Testing 10 min
Integration Testing 10 min
Jest 10 min
Mocha 10 min

The DOM 10 min
Selecting Elements 10 min
Creating Elements 10 min
Modifying Elements 10 min
Types of Selectors 10 min

Event-Driven Programming 10 min
Different Types of Events 10 min
Event Handling 10 min
addEventListener 10 min
Click and Hover Handlers 10 min
Custom Events 10 min
Event Bubbling 10 min
Event Capturing 10 min
Event Delegation 10 min
Event Methods (stopPropagation, stopImmediatePropagation, preventDefault) 10 min

What Is Node.js? 10 min
Running JavaScript with Node 10 min
Modules in Node (CommonJS vs ESM) 10 min
npm and Packages 10 min
Working with the File System 10 min

Project Overview 10 min
Planning Your Project 10 min
Building the Project 10 min
Deploying Your Project 10 min

Core Concepts Questions 10 min
Coding Challenges 10 min
Tricky Questions 10 min
System Design Basics 10 min

Final Assessment 10 min
Getting Certified 10 min

text 10 min ✓ Completed

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Event Methods (stopPropagation, stopImmediatePropagation, preventDefault)

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