Updated June 2026

Advanced JavaScript

Class Duration

35 hours of live training delivered over 5 days

Student Prerequisites

Completed JavaScript Essentials course or similar experience

Target Audience

Computer programming professionals
JavaScript programming experience required
Knowledge of Node.js and Web Browser APIs helpful

Teams continuing on can move to Node.js for Professionals.

Description

This comprehensive course is designed for computer programming professionals seeking to deepen their understanding of JavaScript. The course covers a wide range of topics including JavaScript basics, scopes, functions, objects, classes, asynchronous JavaScript, modules, error handling, immutable programming, testing, debugging, performance, and NPM. Each topic is designed to provide a deep dive into the subject matter, with a strong focus on practical application and hands-on experience. The course is taught live and can be attended either online or in-person. Whether you're looking to enhance your JavaScript skills or learn new ones, this course is perfect for you.

Learning Outcomes

Understand the basics of JavaScript including variables, types, functions, objects, and arrays.
Gain a deep understanding of JavaScript scopes including global, function, block, and lexical scopes, and hoisting.
Master JavaScript functions including function expressions, arrow functions, closures, higher-order functions, and recursion.
Learn about JavaScript objects including object literals, prototypes, classes, inheritance, and mixins.
Get hands-on experience with JavaScript classes including class syntax, static methods, getters and setters, inheritance, mixins, class properties, and binding & "this".
Dive into asynchronous JavaScript including event loop, single-threaded model, browser performance tool, callbacks, promises, async/await, generators, and observables (RxJS).
Understand JavaScript modules including CommonJS, ES modules, and dynamic imports.
Learn about error handling, immutable programming, testing, debugging, performance, and NPM.

Training Materials

All students receive comprehensive courseware covering all topics in the course. Courseware is distributed via GitHub in the form of documentation and extensive code samples. Students practice the topics covered through challenging hands-on lab exercises.

Software Requirements

Students will need a free, personal GitHub account to access the courseware. No local student setup is required, this course is delivered with GitHub Codespaces. The free allotment of Codespaces hours from GitHub is sufficient to complete the course.

Training Topics

Basic JavaScript Review (as needed)

Variables and Types
Functions
Objects
Arrays

Scope

Global Scope
Function Scope
Block Scope
Lexical Scope
Hoisting

Functions

Function Expressions
Arrow Functions
Closures
Higher-Order Functions
Recursion

Objects

Object Literals
Prototypes
Classes
Inheritance
Mixins

Classes

Class Syntax
Static Methods
Getters and Setters
Inheritance
Mixins
Class Properties
Binding & "this"

Asynchronous JavaScript

Event Loop
Single-Threaded Model
Browser Performance Tool
Callbacks
Promises
Async/Await
Generators
Observables (RxJS)

Modules

CommonJS
ES Modules
Dynamic Imports

Error Handling

try/catch
Error Objects
Custom Errors
Error Handling Patterns

Immutable Programming

Immutability
Pure Functions
Side Effects
Referential Transparency

Testing

Unit Testing
Integration Testing
Mocking
Test Runners
Code Coverage
Jest Framework

Debugging

Console
Breakpoints
Source Maps
Debugging Tools

Performance

Profiling
Memory Leaks
Optimization
Web Workers
Service Workers

NPM

Package Management
Semantic Versioning
Publishing Packages
NPM Scripts
Package Lock
Multiple Package Workspaces