rails-查找多个数组之间的交点 [英] rails - Finding intersections between multiple arrays

问题描述

我正在尝试查找多个数组之间的交集值.

I am trying to find the intersection values between multiple arrays.

例如

code1 = [1,2,3]
code2 = [2,3,4]
code3 = [0,2,6]

结果将是2

我知道在PHP中您可以使用array_intersect

I know in PHP you can do this with array_intersect

我希望能够轻松添加其他数组，所以我真的不想使用多个循环

I wanted to be able to easily add additional array so I don't really want to use multiple loops

有什么想法吗?

谢谢亚历克斯

推荐答案

使用 Array 的rel ="noreferrer">& 方法用于设置交集.

Use the & method of Array which is for set intersection.

例如:

> [1,2,3] & [2,3,4] & [0,2,6]
=> [2]

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