It was very helpful for learning the basics of Kotlin. Thank you!

You need to play it at 2x speed to get a normal lecture pace... I think the parts where you speak slowly or hesitate should have been edited out. Other than that, I'm satisfied with the learning content.

It's great for casual listening!

I used Kotlin like Java, but I appreciate that you explained Kotlin & Functional Programming in an easy-to-understand way. I'm looking forward to the intermediate level too~

I took this course because my company is gradually switching to Kotlin, and it was very helpful because the instructor not only taught me the basic grammar but also shared the know-how he had learned through years of practical experience. Thank you for creating such a great course!

This course is well designed to help Kotlin beginners learn the concepts of functional programming and how to apply them in practice. It provides a friendly explanation of basic grammar such as functions, lambdas, and generic types, and provides examples to help you easily understand important concepts of functional programming such as side effects and referential transparency. In particular, the part that shows how to apply what you have learned through practical cases was very useful. I recommend it to Kotlin beginners who want to lay the foundation for functional programming!

I took this course because I wanted to learn Kotlin properly after just using it without formally learning it. It seems really good!

I'm converting my code from Java to Kotlin and I've received a lot of help! I've gained confidence that I can use Kotlin properly by not just using Kotlin syntax but also improving it by using Kotlin's functional techniques!

This was a very good lecture for me, who started a new project in Kotlin within the team and is planning to convert an existing Java project to Kotlin. It covers everything from the essential Kotlin grammar to the methods, processes, and know-how for converting Java code to Kotlin. Thank you for making a great lecture. ^^ I will definitely listen to lectures on functional programming and coroutines using Kotlin in the future.

I bought it a while ago and didn't finish it, but I recently re-watched it to study Kotlin. It's great because it doesn't just teach you Kotlin grammar, but also teaches you how to write code that you can use in practice. I'm developing with Typescript, but I want to change it all to Kotlin. I'm gaining insight into how to write bad code that I'm not satisfied with, even though it's trivial.