is there a way to choose what concrete type `associateWith` returns?

# getting-started

[Karlo Lozovina]

is there a way to choose what concrete type associateWith returns?

[hho]

No. LinkedHashMap is hardcoded in the stdlib. You could only use associateWithTo to add the results to an existing (mutable) map of your choice.

[Karlo Lozovina]

thanks!

[ephemient]

Kotlin specifies that mapOf, mutableMapOf, and most Map-returning methods preserve insertion order, so in practice they are backed by LinkedHashMap

[ephemient]

but yes, associateWithTo (like other *To methods) returns the collection itself, so you can write

val myMap = foo.associateWithTo(MyMapType()) { ... }

with the result of myMap: MyMapType