Ruby on rails 如何展平阵列-但不是一直向下

最好的转换方法是什么

[[["Club three Team one", 7800], ["Club three Team two", 7801]], [], [["Club four Team one", 7807], ["Club four Team two", 7808]], []]

进入

用红宝石？“展平”会将其一直转换为

["Club three Team one", 7303, "Club three Team two", 7304, "Club four Team one", 7310, "Club four Team two", 7311]

使用

展平（1）

---

值得注意的是，对于较旧的Ruby版本：your_array.inject（[]，：concat）@tokland对于大型数组，这将非常有用slower@fl00r：Array#concat在Ruby中已就位，因此不会太慢。我做了一些测试，性能几乎相同。@tokland我认为

inject

是最慢的部分：）

["Club three Team one", 7303, "Club three Team two", 7304, "Club four Team one", 7310, "Club four Team two", 7311]

your_array = [[["Club three Team one", 7800], ["Club three Team two", 7801]], [], [["Club four Team one", 7807], ["Club four Team two", 7808]], []]
your_array.flatten(1)
#=> [["Club three Team one", 7800], ["Club three Team two", 7801], ["Club four Team one", 7807], ["Club four Team two", 7808]]