1
我在科特林公案分区的工作,来到清盘这一点,它通过单元测试:这是Kotlin koan“分区”的首选解决方案,为什么?
fun Shop.getCustomersWithMoreUndeliveredOrdersThanDelivered(): Set<Customer> =
customers.filter{it.orders.partition{it.isDelivered}
.let{(delivered, undelivered) -> delivered.size < undelivered.size}}.toSet()
这是该解决方案的变化:
fun Shop.getCustomersWithMoreUndeliveredOrdersThanDelivered(): Set<Customer> =
customers.filter {
val (delivered, undelivered) = it.orders.partition { it.isDelivered }
undelivered.size > delivered.size
}.toSet()
是否有喜欢的任何原因这些解决方案之一是另一个?