kotlin-node/node.stream/Readable/reduce

reduce

suspend fun <T> reduce(fn: (previous: Any?, data: Any?, options: ArrayOptions?) -> T, initial: Nothing? = definedExternally, options: ArrayOptions = definedExternally): T(source)
suspend fun <T> reduce(fn: (previous: T, data: Any?, options: ArrayOptions?) -> T, initial: T, options: ArrayOptions = definedExternally): T(source)