Ruby:如何找到2个数组之间的差异，顺序很重要 [英] Ruby: How to find difference between 2 arrays, order matters

问题描述

我正在尝试计算顺序重要的两个数组之间的差异.例如:

I'm trying to count the differences between two arrays where the order DOES matter. For example:

array_one = ["A", "B", "C"]
array_two = ["B", "C", "A"]

这将产生3个差异，因为:

This would yield 3 differences because:

array_one[0] != array_two[0]
array_one[1] != array_two[1]
array_one[2] != array_two[2]

另一个例子:

array_one = ["Z", "X", "Y"]
array_two = ["Z", "W", "Y"]

这将产生1，因为:

array_one[0] == array_two[0]
array_one[1] != array_two[1]
array_one[2] == array_two[2]

任何建议都将不胜感激.

Any suggestions greatly appreciated.

推荐答案

如何解决

array_one = ["A", "B", "C"]
array_two = ["A", "C", "A"]

array_one.select.each_with_index { |item, index| 
  array_two[index] != item 
} => #B and C

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