DataWeave has a standard function to join array elements into a string value: joinBy in the dw::Core module. The joinBy function takes an array as first argument and a string value that is used as separator. The array should have string values or values that can be coerced into string values.

In Akka Typed we need an ActorContext to create new actors.

This poses some problems if we want to create an actor inside a class that’s not an actor. We can pass around an ActorContext from a (higher level) actor. But if this is a longer-lived class, we have to keep in mind that this ActorContext is only valid during construction. So it’s generally frowned upon to pass around the ActorContext.