ruby - 将数组的每个元素注入(inject)到不同的数组

Question

我有两个数组:

array1: [[1, 2], [2, 3]]

array2: ["a", "b", "c"]

我想将这两者结合起来得到以下结果:

[[1, 2, "a"], [1, 2, "b"], [1, 2, "c"], [2, 3, "a"], [2, 3, "b"], [2, 3, "c"]]

Answer 1

您可以使用 Array#product :

array1.product(array2).map &:flatten
#=> [[1, 2, "a"], [1, 2, "b"], [1, 2, "c"], [2, 3, "a"], [2, 3, "b"], [2, 3, "c"]]