JavaScript: The Advanced Concepts
Deep dive into closures, prototypes, async patterns, the event loop, and modern ES2025 features.
4.7(3 reviews)4 studentsAdvancedEnglish
Created by Sarah Chen
Web Development
What you'll learn
- Understand the JavaScript engine and call stack
- Master closures, scope chains, and execution contexts
- Implement functional programming patterns
- Write truly asynchronous code with confidence
- Use advanced TypeScript generics and type utilities
Requirements
- 1+ year working with JavaScript
- Comfortable with ES6+ syntax
- Basic understanding of asynchronous programming
About this course
Go beyond the basics and truly understand how JavaScript works. This course covers the JavaScript engine, execution context, closures, prototypal inheritance, functional programming, async/await internals, the event loop, memory management, and the latest ES2025 features. Perfect for developers who know JS basics but want to master the language at a professional level.
Course curriculum
4 lectures · 195 min total
- JavaScript Under the HoodPreview35:00
- Closures, Scope & the Prototype Chain55:00
- Async JavaScript: Promises, Generators & Async Iterators60:00
- Functional Programming & Modern Patterns45:00
Your instructor
Sarah has 8+ years of experience building production web applications with React, Next.js, and Node.js. She has taught over 120,000 students and is passionate about making modern web development accessible to everyone. Previously a Senior Engineer at Stripe and Vercel.
Student reviews
4.7- LLiam Walker
I thought I knew JavaScript well until I took this course. The module on closures and the event loop finally filled in all the gaps I had from years of copying Stack Overflow answers.
- CCharlotte Brooks
The design patterns section is absolutely brilliant. Went from junior to confidently writing maintainable, scalable JS code. This is the course I wish existed when I started programming.
- LLucas Griffin
