The Kotlin Standard Library also provides numerous useful functions to iteratively work upon collections.
For example, the [map](<https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/map.html>)
function can be used to transform a list of items.
val numbers = listOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 0)
val numberStrings = numbers.map { "Number $it" }
One of the many advantages of this style is it allows to chain operations in a similar fashion. Only a minor modification would be required if say, the list above were needed to be filtered for even numbers. The [filter](<https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/filter.html>)
function can be used.
val numbers = listOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 0)
val numberStrings = numbers.filter { it % 2 == 0 }.map { "Number $it" }