sortedsequence/io.timvanoijen.github.kotlin.sortedsequence/SortedKeyValueSequence/distinctByKey

distinctByKey

fun distinctByKey(): SortedKeyValueSequence<TKey, TValue>

Returns a new sequence containing only the first occurrence of each key.

Example:

val sequence = sequenceOf(1 to "a", 1 to "b", 2 to "c").assertSorted()
val distinct = sequence.distinctByKey()
assertEquals(
  listOf(
    1 to "a",
    2 to "c"
  ),
  distinct.toList()
)

Return

A new sorted sequence with duplicate keys removed