Kotlin HashMap mapValuesTo()
Syntax & Examples

Syntax of HashMap.mapValuesTo()

The syntax of HashMap.mapValuesTo() extension function is:

fun <K, V, R, M : MutableMap<in K, in R>> Map<out K, V>.mapValuesTo( destination: M, transform: (Entry<K, V>) -> R ): M

This mapValuesTo() extension function of HashMap populates the given destination map with entries having the keys of this map and the values obtained by applying the transform function to each entry in this Map.