[desiderantes]

Scala and Groovy were big pushes for Java 7/8. Their hypes died down after that release.

[marwis]

Where do you see pattern matching in Kotlin?

[totallykvothe]

In its pattern matching feature

[wiseowise]

Kotlin has no pattern matching. Their bootleg ‘when’ with guards is no match (no pun intended) for true pattern matching.