ruby get key
hash = {"apple" => "fruit", "carrot" => "vegetable"}
array = hash.keys #=> ["apple", "carrot"]ruby get key
hash = {"apple" => "fruit", "carrot" => "vegetable"}
array = hash.keys #=> ["apple", "carrot"]get specific key value from array of hashes in ruby
values = ary.map{|h| h[13]}.compactCopyright © 2021 Codeinu
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