Hash(K, V)
Inherits Iterable / Enumerable / Reference / Object
From Rails https://github.com/rails/rails/blob/master/activesupport/lib/active_support/core_ext/hash/deep_transform_values.rb
Instance methods
deep_transform_values
Returns a new hash with all values converted by the block operation. This includes the values from the root hash and from all nested hashes and arrays.
hash = { person: { name: 'Rob', age: '28' } }
hash.deep_transform_values{ |value| value.to_s.upcase }
=> {person: {name: "ROB", age: "28"}}
deep_transform_values!
Destructively converts all values by using the block operation. This includes the values from the root hash and from all nested hashes and arrays.