比较 Scala 中的两个 Map [英] Compare two Maps in Scala

问题描述

是否有任何预定义的函数可用于根据键比较两个 Map 并给出差异?现在，我迭代 Map1 和 foreach 键，我检查 Map2 中是否有一个元素，并通过模式匹配找到差异.有没有更优雅的方法来做到这一点?

Is there any pre-defined function that I can use to compare two Maps based on the key and give me the difference? Right now, I iterate Map1 and foreach key, I check if there is an element in Map2 and I pattern match to find the difference. Is there a much elegant way to do this?

推荐答案

考虑转换成元组集合的映射之间的差异，

Consider the difference between the maps converted into sets of tuples,

(m1.toSet diff m2.toSet).toMap

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