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Hash join: Difference between revisions
→{{header|Kotlin}}: Updated example see https://github.com/dkandalov/rosettacode-kotlin for details
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(→{{header|Kotlin}}: Updated example see https://github.com/dkandalov/rosettacode-kotlin for details) |
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=={{header|Kotlin}}==
<lang scala>// version 1.1.
data class A(val age: Int, val name: String)
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fun hashJoin(tableA: List<A>, tableB: List<B>): List<C> {
val mm = tableB.groupBy { it.character }
val tableC = mutableListOf<C>()
for (a in tableA) {
val value = mm[a.name]
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fun main(args: Array<String>) {
val tableA = listOf(
A(27, "Jonah"),
A(18, "Alan"),
A(28, "Glory"),
A(18, "Popeye"),
A(28, "Alan")
)
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