Iterate over a deeply nested level of hashes in Ruby

Question

So I have a hash, and for each level of the hash, I want to store its key and value. The problem is, a value can be another hash array. Furthermore, that hash can contain ke

Answer 1

This should do for JSON well. Minor enhancements to Mark's code where it converts everything to uppercase in a given hash:

def capitalize_hash(myHash)
    myHash.each {|key, value|
        puts "isHash: #{value.is_a?(Hash)}: " + value.to_s
        value.is_a?(Hash) ? capitalize_hash(value) : ( value.is_a?(Array) ? (myHash[key] = capitalize_array(value)) : (myHash[key] = value.try(:upcase)))
    }
end

def capitalize_array(myArray)
    myArray.each {|value|
        puts "isHash: #{value.is_a?(Hash)}: " + value.to_s
        value.is_a?(Array) ? capitalize_array(value) : ( value.is_a?(Hash) ? capitalize_hash(value) : value.try(:upcase))
    }
end