class Hash

Adds `deep_transform_keys` method to Ruby hash

Public Instance Methods

deep_transform_keys(&block) click to toggle source

# File lib/hash.rb, line 5
def deep_transform_keys(&block)
  _deep_transform_keys_in_object(self, &block)
end

Private Instance Methods

_deep_transform_keys_in_object(object) { |key| ... } click to toggle source

# File lib/hash.rb, line 11
def _deep_transform_keys_in_object(object, &block)
  case object
  when Hash
    object.each_with_object({}) do |(key, value), result|
      result[yield(key)] = _deep_transform_keys_in_object(value, &block)
    end
  when Array
    object.map { |e| _deep_transform_keys_in_object(e, &block) }
  else
    object
  end
end