quick one: Please, who knows an idiomatic way to select a previous or next element in a collection i...

# getting-started

[Smorg]

quick one: Please, who knows an idiomatic way to select a previous or next element in a collection in Kotlin?

[Smorg]

val list = listOf(...)
val current = ...
val next = list[list.indexOf(current) + 1]
val previous = list[list.indexOf(current) - 1]

[karelpeeters]

I don't think you can do a lot better than that.

[Shawn]

sounds like you want a doubly linked list

[Pavlo Liapota]

Look at methods that ListIterator has
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-list/list-iterator.html

[Pavlo Liapota]

But this would help only if iterate to your current element through this iterator, and not just getting current element from outside.