When naming an extension on some type A that returns a type B, what are the conventional names for such functions? For example, there are •

fun <T> Array<out T>.asList(): List<T>

•

fun <T> Array<out T>.toList(): List<T>

By signature, they are identical. So the behaviour must define the naming difference. Likewise, there exists a

fun <T> Array<out T>.asIterable(): Iterable<T>

but not

toIterable

. Then there are all kinds of variants that use names like

mapTo

. When do you use

as

,

to

,

mapTo

or something else?

as

- is just a cheap cast/view.

to

- is a conversion.

I see, thanks