A modern programming language that makes developers happier.

kotlinlang

why where traits removed? is there something similar (ie mixins)?

i like mixins from dart for small methods that you want to add to classes while being able to extend another class. i guess the class hierarchy is just more strict in kotlin? only interfaces and abstract classes.

And you can have interfaces with default implementations of methods

Actually Kotlin traits were just groups of extension functions. So they been replaced by extension functions

That’s incorrect. Traits were interfaces with default implementations. Or, if you wish, abstract classes without a state. Since interfaces in Java got default impls too, there were no reason to keep a distinct name.

Oh, of course :man-facepalming:  It's completely messed up in my mind  :upside_down_face: