[OT] Some neat ideas from the Kotlin language

[Ice Create Man via Digitalmars-d]

On Thursday, 18 February 2016 at 23:33:45 UTC, Yuxuan Shui wrote:
> Just come across Kotlin today, and found some interesting ideas 
> skimming through its tutorial:
>
> [...]

Both those issues predate both Kotlin and Swift. C# has had both 
of them for as long as I've been coding in the language. Nothing 
new here.