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Deep Dive Into Functional JavaScript

Deep Dive Into Functional JavaScript

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


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

Course Information

Basic knowledge of JavaScript is required

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

This course is geared towards software developers who would like to improve their skills and expertise by sticking to the highest quality standards when it comes to writing code.

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Course Specifications

IT and Computing courses are available to study on our learning platform. 

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Adult education is the non-credential activity of gaining skills and improved education. 

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Online education is electronically supported learning that relies on the Internet for teacher/student interaction. 

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A short course is a learning programme that gives you combined content or specific skills training in a short period of time. Short courses often lean towards the more practical side of things and have less theory than a university course – this gives you a more hands-on experience within your field of interest.

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Course duration is 24 hours.

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