Scala, find largest list in a list
假设 val a = List[List[int]]：
在 Scala 中查找包含最多元素的列表的最简洁方法是什么？
尝试 .maxBy 或 .maxByOption
之一
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1
2
3
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List(List(0)).maxBy(_.size) // List(0)
List(List(0)).maxByOption(_.size) // Some(List(0))
List.empty[List[Int]].maxByOption(_.size) // None
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1
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List(List(1), List(2, 3)).maxBy(_.size)
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来源：https://www.codenong.com/61913523/
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