I am quite new to this slack as well as Kotlin. In this platform we can ask doubts related to the code but can anyone tell me that from where should I start. I know learning any coding language has endless concepts but till what I must do to be a successful kotlin developer ?

Doing the Kotlin Koans is a good starting point: https://play.kotlinlang.org/koans/overview

till what I must do to be a successful kotlin developer

You can replace

Kotlin

in your question with any other language and the answer remains somewhat the same. What exactly is

success

to you? If you are looking to get hired as Kotlin developer, then hiring companies will first look at anything you have in production and publicly available repos. If you’re looking to be a major contributor to the language then people will evaluate your knowledge depths and breadth. If you’re looking to be someone who I can throw a Kotlin project and pick it up properly, all the while extending and improving the code base, then doing the Koans is about 50% there. I suppose the rule of thumb is that, you can measure your success in how much you use the tool, but don’t forget, people will evaluate your success on what exactly did you used the tool for. 😁

Thanks a lot