2018-fumichan-thesis / form-sample / vendor / bundle / ruby / 2.5.0 / gems / backports-3.11.4 / lib / backports / 2.4.0 / hash / transform_values.rb

class Hash
  def transform_values
    return to_enum(:transform_values){ size } unless block_given?
    h = {}
    each do |key, value|
      h[key] = yield value
    end
    h
  end unless method_defined? :transform_values

  def transform_values!
    return to_enum(:transform_values!){ size } unless block_given?
    reject!{} if frozen? # Force error triggerring if frozen, in case of empty array
    each do |key, value|
      self[key] = yield value
    end
  end unless method_defined? :transform_values!
end