Deep Dive into Functional JavaScript

Get in-depth overview and the tools to write maintainable code in JavaScript. This course is in the latest version of JavaScript: ES2017. This is a practical guide to functional programming in ES6.

Features Includes:
  • Self-paced with Life Time Access
  • Certificate on Completion
  • Access on Android and iOS App

Course Preview Video


A practical guide to mastering functional programming in ES6 from the perspective of building real-world applications.

In this course, you will have an in-depth overview and the tools in your utility belt to write maintainable code in JavaScript.

We will stick to the latest version of JavaScript in this course, ES2017. You don't have to know ES2017 to benefit from the course, as we will introduce the language constructs that we use during it. You will experience the benefits of functional programming even if your code is not purely functional. In this course, you will learn the building blocks that act as a utility belt in your arsenal, enabling you to write code that's easy to understand, extend, test, and debug. You will get hands-on practice on how to use currying, partial evaluation, map, reduce, filter, recursion, and other functional programming concepts in ES6.

About the Author

  • Zsolt Nagy is a web development team lead, mentor, and software engineer living in Berlin, Germany. As a software engineer, Zsolt continuously challenges himself to stick to the highest possible standards when improving his own knowledge. The best way of learning is to create a meaningful product on the way. Until you reach this state, the second best way of learning is to share with others what you learned and how you structure your thoughts. Zsolt is the author of the book and video course ES6 in Practice (, introducing you to all meaningful features of ES6. He is also an author of the book The Developer's Edge – How to Double Your Career Speed with Soft-Skills ( Visit Zsolt's JavaScript blog on Zsolt's career blog for software developers is available on

Basic knowledge
  • Basic knowledge of JavaScript is required

What will you learn
  • Discover the principles of functional programming
  • Learn the benefits and drawbacks of functional programming compared to other styles
  • Learn the language constructs of ES6 that are used for functional programming
  • Write elegant code with chaining and context binding
  • Understand function composition and function sequencing in depth
  • Learn about higher order functions with a special emphasis on map, reduce, and filter
  • Translate SQL queries into chained map and reduce calls
  • Learn currying and partial application in practice
  • Learn recursion, tail-call optimization, and the role of accumulator variables
  • Experiment with optimization techniques combating the performance drawbacks of functional programming
  • Map out a plan for how to continue after the course
Course Curriculum
Number of Lectures: 22 Total Duration: 02:47:47

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