I agree that I'd approach this in the form of (`val completed = order.approveAs(currentUser, Instant.now())` or maybe `val completed = orderService.approve(currentUser, Instant.now())`) myself. That doesn't require any specific programming language either. I was just using the example in the blog.
However, I don't see Kotlin as a language that sticks to explicit code where you can understand what is going on. Between extensions, companion objects, infix methods and other syntactic sugar, I would say Java is much better in terms of code explicitness.
However, I don't see Kotlin as a language that sticks to explicit code where you can understand what is going on. Between extensions, companion objects, infix methods and other syntactic sugar, I would say Java is much better in terms of code explicitness.