Ruby,哈希数组转换为2d数组

Question

我有一系列哈希.

arr =[{:code=>"404", :demo => "1"}, {:code=>"302", :demo => "1"}, {:code=>"200", :demo => "1"}]

我想将其转换为:

[["404", "1"], ["302", "1"], ["200", "1"]]

我试过了:

arr.each do |a|
 puts a.values
end

但这只创建了一个数组;

["404", "1", "302", "1", "200", "1"]

Answer 1

arr.map(&:values)
#? [["404", "1"], ["302", "1"], ["200", "1"]]