Parallel operations on Kotlin collections?

Issue

In Scala, one can easily do a parallel map, forEach, etc, with:

collection.par.map(..)

Is there an equivalent in Kotlin?

Solution

The Kotlin standard library has no support for parallel operations. However, since Kotlin uses the standard Java collection classes, you can use the Java 8 stream API to perform parallel operations on Kotlin collections as well.

e.g.

myCollection.parallelStream()
        .map { ... }
        .filter { ... }

Answered By - yole