kone.collections/dev.lounres.kone.collections.utils/groupContextualBy

groupContextualBy

inline fun <E, K> KoneIterable<E>.groupContextualBy(keyType: SuppliedType<K>, keySelector: (E) -> K): KoneMap<K, KoneList<E>>(source)
inline fun <E, K, V> KoneIterable<E>.groupContextualBy(keyType: SuppliedType<K>, keySelector: (E) -> K, valueTransform: (E) -> V): KoneMap<K, KoneList<V>>(source)