JavaScript Developer

Gain the skills to design, build, and maintain modern JavaScript applications with confidence across both the browser and development tooling ecosystem. You will be able to structure scalable projects, manage asynchronous workflows, and deliver production-ready experiences.

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Lesson 1

Scope & Hoisting

How variable visibility and lifting works

Lesson 2

Arrays

Ordered collections of indexed values

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Lesson 3

Array Methods

Tools for working with arrays

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Lesson 4

Objects

Key-value structures for grouped data

Lesson 5

Iteration - map

Transform each array element into new values

Lesson 6

Iteration - filter

Select elements matching a condition

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Lesson 7

Iteration - reduce

Combine array into single accumulated result

Lesson 8

Iteration - forEach

Execute function on each element

Lesson 9

Math

Built-in numerical operations and constants

Lesson 10

Bitwise Operators

Symbols that perform calculations or comparisons

Lesson 11

Date

Work with timestamps and calendar values

Lesson 12

Sets

Collections of unique values only

Lesson 13

Maps

Key-value collections with any key type

Lesson 14

Type Coercion & Equality (== vs ===)

Implicit conversion versus strict comparison

Lesson 15

typeof operator

Identify the type of a value

Lesson 16

instanceof operator

Check object against constructor prototype

Lesson 17

Destructuring

Extract values from arrays or objects

Lesson 18

Default Parameters

Provide fallback values for function arguments

Lesson 19

Optional Chaining (?.)

Safely access deeply nested properties

Lesson 20

Nullish Coalescing (??)

Use defaults only for null or undefined

Lesson 21

Spread / Rest Operators

Expand or collect values into structures

Lesson 22

Classes

Blueprint-based object creation

Lesson 23

Class Inheritance

Blueprint-based object inheritance

Lesson 24

Closures

Functions retaining access to outer scope

Lesson 25

Modules (import/export)

Organize code across reusable files

Lesson 26

Async Programming - Callbacks

Handle asynchronous results using function arguments

Lesson 27

Async Programming - Promises

Represent future values from async operations

Lesson 28

Async Programming - async/await

Write asynchronous code in synchronous style

Lesson 29

JSON

Lightweight format for structured data exchange

Lesson 30

Data - Copying and Cloning

Shallow copy, deepy copy, and cloning

Lesson 31

Custom Iterators

Define custom traversal behavior for objects

Lesson 32

Custom Generators

Produce iterable sequences using yield

Lesson 33

Symbols

Unique identifiers for object property keys

Lesson 34

WeakMap / WeakSet

Weakly referenced collections for memory efficiency

Lesson 35

Error Handling (advanced patterns)

Structured strategies for managing application errors

Lesson 36

this Keyword

Reference current execution context object

Lesson 37

Prototypes & Inheritance

Share behavior across object hierarchies

Lesson 38

Browser APIs vs. Web APIs

Platform features versus standardized web interfaces

Lesson 39

Browser APIs - Document Object Model (DOM)

Programmatic access to HTML document structure

Lesson 40

Browser APIs - DOM Navigation

Traverse and select document elements

JavaScript Developer Path

Introduction to JavaScript

Develop a solid JavaScript foundation by learning how to think like a programmer, structure data, and build dynamic applications. You’ll confidently write clean, reusable code and be prepared to advance into modern front-end or back-end development.

JavaScript Developer

JavaScript Developer Path

Introduction to JavaScript