JavaScript Under The Hood

Learn about advanced JavaScript and how it works under the hood

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4.5k students enrolled

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Course Instructor: Brad Traversy

Course image for JavaScript Under The Hood

Includes Certificate of Completion

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What's in the course?

5 video lectures
2 hands-on-keyboard exercises
3 quiz exams
GPT-4 level AI assistance

Course Outcomes

Thread and Call Stack
Execution Context in JavaScript
Memory overview
JavaScript Engine
Async JS features
Task Queues
Event loops

Course Structure

10 lectures • 1h 16m total duration

Execution Thread And Call Stack

9min

Execution Context

15min

Fix this code

5min

Async JS, Task Queue, Event Loop

12min

Quiz

1min

Convert to async JS

5min

About This Course

JavaScript is a scripting language that uses high-level features of the C language and other languages such as Scheme, Perl, Ruby, Python and more. It was designed by Brendan Eich, who also created the Web browser Firefox.

This course will go in depth on how JavaScript works and how it advanced things like queues, call stack, async JS to name a few are used. You will learn about the following things in this course:

How thread and call stack work in JavaScript
What is execution context in JavaScript
How does JS work with memory
What are different kinds of JavaScript engines
What are some async JS features
Event loop working and how task queues work

Used by learners at

This course is interactive

Interactive courses include hands-on coding exercises to practice as you learn. You practice exercises in a VS Code like IDE without any installation/setup.