🌐 JavaScript Programming for Complete Beginners

What JavaScript Is, Its History, and Why Every Browser Speaks It

19 min

JavaScript Versions (ES5, ES6, and Beyond) and What "Modern JS" Means

19 min

How JavaScript Runs: The Engine, Browser, and Node

13 min

ES6 `var`, `let`, `const`: Declarations, Naming Rules, and Which One to Use

19 min

Hoisting: Why Your Variable Exists Before You Wrote It

19 min

Scope: Global, Function, and Block, and Where a Variable Can Be Seen

13 min

Primitive Types: String, Number, Boolean, Undefined, Null, Symbol, BigInt

15 min

Reference Types, Objects, and Checking Types with `typeof`

13 min

Type Conversion: Implicit Coercion vs Explicit Casting

16 min

Operators: Arithmetic, Assignment, Comparison, Logical, Bitwise

18 min

The Modern Trio: Ternary, Nullish Coalescing (`??`), and Optional Chaining (`?.`)

19 min

Equality: `==` vs `===` vs `Object.is()`, and How Equality Really Works

19 min

Condition `if`, `else`, and `switch`: Teaching Your Code to Decide

18 min

Loops: `for`, `while`, `do...while`, Plus `break` and `continue`

19 min

Loop: `for...of` vs `for...in`: Which Loop for Which Job

19 min

Functions: Declarations, Expressions, Arrow Functions, Parameters, and Return Values

16 min

Default Parameters, Rest Parameters, and Spread Syntax

13 min

Callbacks and Higher-Order Functions: Passing Functions Around

15 min

Lexical Scope and Closures: The Function That Remembers

12 min

Object Literals: Properties, Methods, `this`, and Destructuring

12 min

Useful Built-in Object Methods (`Object.keys`, `Object.assign`, and Friends)

19 min

The Prototype System: Prototype Chain and Prototypal Inheritance

17 min

ES6 Classes: Constructor, Methods, and Inheritance

17 min

Static Methods, Getters, and Setters

14 min

Arrays: Creating Them and the Everyday Methods (`push`, `slice`, `splice`)

19 min

Iteration Methods: `map`, `filter`, `reduce`, and `forEach`

13 min

Searching and Sorting Arrays (Plus a Look at Typed Arrays)

14 min

Keyed Collections: `Map`, `Set`, `WeakMap`, `WeakSet`, and When to Use Them

16 min

JSON: The Format, `JSON.parse`, and `JSON.stringify`

17 min

ES Modules: `import`, `export`, Default vs Named Exports

13 min

Error Handling: `throw`, `try...catch`, `finally`, and Custom Errors

18 min

How Async Works: Call Stack, Event Loop, and the Callback Queue

12 min

Callbacks and Promises: Escaping Callback Hell

15 min

Async `async`/`await`: Async Code That Reads Like Normal Code

19 min

The Fetch API: Getting Real Data from a Real Server

19 min

Mini Project: Build a Live Data App (Fetch, Transform, Display, Handle Errors)

13 min