JavaScript: The Hard Parts, v3. This course is designed to build a detailed and reliable mental model of JavaScript for developers. The course focuses on mastering the complex and fundamental concepts of the language, including higher-order functions, closures, data types, asynchronous programming, and object orientation. The course begins by examining powerful functions such as map, reduce, and filter to avoid unnecessary code repetition. It then explores the concept of closures and how they work using Execution Context and Variable Environment, which allows for the creation of functions such as once and memorize. In the asynchronous section, a fundamental understanding of asynchronous code processing is created by analyzing the Call Stack, Event Loop, and Task Queue in detail. It also builds a mental model of data types and coercion, making seemingly unexpected language behavior predictable and introducing features such as Symbols. Finally, it provides a thorough understanding of JavaScript’s core mechanisms by exploring object-oriented patterns and examining the functionality of the this and new keywords alongside the Prototype Chain.
What you will learn
- Higher-Order Functions like map, reduce, and every, so you can use and rebuild them effectively.
- The functioning of the asynchronous world of JavaScript in terms of Call Stack, Callback Queue, Event Loop, and Threads.
- Object-oriented programming and its various patterns in JavaScript through Prototype Chain.
- Closure, one of the most powerful yet misunderstood features of JavaScript, with its understanding of Execution Context, JS Runtime, and Environment Variables.
- Solve any weird problem in JS and write code that is both flexible and predictable, with an understanding of Types, Operators, Coercion, and Meta-programming.
This course is suitable for people who:
- Intermediate to advanced JavaScript developers: Those who want to deepen their understanding of the core mechanisms and challenging concepts of the language.
- Technical Interview Prep: This course is invaluable for developers preparing for technical interviews.
- People looking to solve more complex problems: Those who want to confidently tackle complex JavaScript problems and write more complex, maintainable code.
