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pgebert/TreeMapsInKotlin.kt

Created April 5, 2023 19:58
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Implementation of treeMapOf and toTreeMap equivalent to mapOf and toMap in kotlin.
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TreeMapsInKotlin.kt
import java.util.TreeMap
fun <K, V> treeMapOf(vararg pairs: Pair<K, V>): TreeMap<K, V> =
TreeMap<K, V>().apply { putAll(pairs) }
fun <K : Comparable<K>, V> Map<K, V>.toTreeMap(): TreeMap<K, V> =
TreeMap<K, V>().apply { putAll(this@toTreeMap) }
// Usage:
val mapA = treeMapOf(1 to "A")
val mapB = mapOf(1 to "A").toTreeMap()
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