sortedsequence/io.timvanoijen.github.kotlin.sortedsequence/SortedSequence/groupByKey

groupByKey

fun groupByKey(): SortedSequence<TKey, List<TValue>>

Groups values by their sorting key, maintaining sort order.

Example:

val sequence = sequenceOf(1, 2, 2, 3).assertSorted()
val grouped = sequence.groupByKey()
assertEquals(listOf(listOf(1), listOf(2, 2), listOf(3)), grouped.toList())
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Return

A new sorted sequence with grouped values