Is there a `List<E>.associateWithIndex(): Ma...

# stdlib

[spand]

Is there a List<E>.associateWithIndex(): Map<E, Int> or something similar that I am missing. (edited)

[mister11]

You have mapWithIndex, filterWithIndex, forEachWithIndex and maybe some more to do some processing.

[mister11]

If you need index with and item as an end result, I'd go with mapWithIndex that will map item + index in some model (or Pair if that's good enough)

[spand]

I ended up doing .indexed().associateBy({ it.value }) { it.index }. I just kind of expected it to be there but wasnt sure about the name

[arekolek]

how about .mapIndexed(::Pair).toMap()

although now I see you want a map of values to indices

so that would have to be .mapIndexed { i, v -> v to i }.toMap()