inline fun <T, R, C : MutableCollection<in R>> MongoIterable<T>.mapIndexedTo(destination: C, crossinline transform: (index: Int, T) -> R): C (source)
Applies the given transform function to each element and its index in the original collection and appends the results to the given destination.
transform - function that takes the index of an element and the element itself
and returns the result of the transform applied to the element.