Contents

object ETL {
    fun transform(old: Map<Int, Collection<Char>>): Map<Char, Int> {
        return old.flatMap { mapEntry -> mapEntry.value.map { word -> Pair(word.toLowerCase(), mapEntry.key) } }.toMap()
    }
}

Version data entries

203 entries across 203 versions & 1 rubygems

Version	Path
trackler-2.2.1.52	tracks/kotlin/exercises/etl/.meta/src/reference/kotlin/ETL.kt
trackler-2.2.1.51	tracks/kotlin/exercises/etl/.meta/src/reference/kotlin/ETL.kt
trackler-2.2.1.50	tracks/kotlin/exercises/etl/.meta/src/reference/kotlin/ETL.kt
trackler-2.2.1.49	tracks/kotlin/exercises/etl/.meta/src/reference/kotlin/ETL.kt
trackler-2.2.1.48	tracks/kotlin/exercises/etl/.meta/src/reference/kotlin/ETL.kt
trackler-2.2.1.47	tracks/kotlin/exercises/etl/.meta/src/reference/kotlin/ETL.kt
trackler-2.2.1.46	tracks/kotlin/exercises/etl/.meta/src/reference/kotlin/ETL.kt
trackler-2.2.1.45	tracks/kotlin/exercises/etl/.meta/src/reference/kotlin/ETL.kt
trackler-2.2.1.44	tracks/kotlin/exercises/etl/.meta/src/reference/kotlin/ETL.kt
trackler-2.2.1.43	tracks/kotlin/exercises/etl/.meta/src/reference/kotlin/ETL.kt
trackler-2.2.1.42	tracks/kotlin/exercises/etl/.meta/src/reference/kotlin/ETL.kt
trackler-2.2.1.41	tracks/kotlin/exercises/etl/.meta/src/reference/kotlin/ETL.kt
trackler-2.2.1.40	tracks/kotlin/exercises/etl/.meta/src/reference/kotlin/ETL.kt
trackler-2.2.1.39	tracks/kotlin/exercises/etl/.meta/src/reference/kotlin/ETL.kt
trackler-2.2.1.38	tracks/kotlin/exercises/etl/.meta/src/reference/kotlin/ETL.kt
trackler-2.2.1.37	tracks/kotlin/exercises/etl/.meta/src/reference/kotlin/ETL.kt
trackler-2.2.1.36	tracks/kotlin/exercises/etl/.meta/src/reference/kotlin/ETL.kt
trackler-2.2.1.35	tracks/kotlin/exercises/etl/.meta/src/reference/kotlin/ETL.kt
trackler-2.2.1.34	tracks/kotlin/exercises/etl/.meta/src/reference/kotlin/ETL.kt
trackler-2.2.1.33	tracks/kotlin/exercises/etl/.meta/src/reference/kotlin/ETL.kt