如何红宝石多个大小相同的阵列组合 [英] How to combine multiple arrays of the same size in ruby

问题描述

如果我有3个或多个阵列我想合并成一个，我该怎么做，在红宝石？难道是上拉链的变化？

例如，我有

A = [1，2，3]
B = [4，5，6]
C = [7，8，9]

和我想有一个数组，看起来像

[[1，4,7]，[2，5,8]，[3,6，10]]

解决方案

  [A，B，C] .transpose
 

是你所需要的。我preFER这拉链的时间的50％。

If I have 3 or more arrays I want to combine into one, how do I do that in ruby? Would it be a variation on zip?

For example, I have

a = [1, 2, 3] b = [4, 5, 6] c = [7, 8, 9]

and I would like to have an array that looks like

[[1, 4, 7], [2, 5, 8], [3, 6, 9]]

解决方案

[a,b,c].transpose

is all you need. I prefer this to zip 50% of the time.

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