Udemy

JavaScript: Understanding the Weird Parts

Name: JavaScript: Understanding the Weird Parts
Price: 149.99 USD
Availability: InStock
Rating: 4.8 (49429 reviews)

4.8(49,429)199k studentsALL LEVELS

Korshub's take

The Course Web Developers Return To

For ten years, developers have relied on this course to finally understand how JavaScript actually works under the hood. Most tutorials teach what to write; this one teaches why it works that way—execution context, execution stack, prototypical inheritance, scope chains, async patterns. That knowledge transforms how you debug, design, and move between frameworks like React, Node, and Angular.

The course covers advanced concepts systematically: function objects, closures, immediately invoked function expressions, promises, async/await, and even how to build your own framework. Students consistently return to it for reference, and many credit it as the turning point in their careers—the course that moved them from copying patterns to understanding them.

Deep dive into JavaScript's execution model and scope
Advanced patterns: promises, async/await, functional programming
Source-code analysis of popular frameworks to learn by example

About this course

JavaScript is the language that modern developers need to know, and know well. Truly knowing JavaScript will get you a job, and enable you to build quality web and server applications.

Over the past decade, tens of thousands of developers count this course as the course they always go back to year after year -- the one that finally helped them grasp JavaScript and move to the next level in their web development career. Many students are now senior developers, business owners, managers, and educators!

In this course you will gain a deep understanding of JavaScript, learn how JavaScript works under the hood, and how that knowledge helps you avoid common pitfalls and drastically improve your ability to debug problems. You will find clarity in the parts that others, even experienced coders, may find weird, odd, and at times incomprehensible. You'll learn the beauty and deceptive power of this language that is at the forefront of modern software development today.

This is the original course that taught web developers the concepts of the execution context and execution stack, critical concepts to mentally grasp how JavaScript works and how you code in it.

This course will cover such advanced concepts as objects and object literals, function expressions, function objects, prototypical inheritance, functional programming, scope chains, block scoping, classes, immediately invoked function expressions (IIFEs), call, apply, bind, promises, async, await and more.

We'll take a deep dive into the source code of popular frameworks to see how you can use your understanding of JavaScript to learn (and borrow) from other's good code.

Finally, you'll learn the foundations of how to build your own JavaScript framework or library.

What you'll learn in this course will make you a better JavaScript developer, and improve your abilities in React, Node.js, Next.js, Angular, Vue, MongoDB, and all other Javascript-based technologies!

Learn to love JavaScript, and code in it well.

Note: In this course you'll also get downloadable source code. You will often be provided with 'starter' code, giving you the base for you to start writing your code, and 'finished' code to compare your code to.