Ruby - 测试数组 [英] Ruby - test for array

问题描述

什么是正确的方法:

is_array("something") # => false         (or 1)

is_array(["something", "else"]) # => true  (or > 1)

还是获取其中的项目数?

or to get the count of items in it?

推荐答案

您可能想要使用 kind_of().

You probably want to use kind_of().

>> s = "something"
=> "something"
>> s.kind_of?(Array)
=> false
>> s = ["something", "else"]
=> ["something", "else"]
>> s.kind_of?(Array)
=> true

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