Retrieve a path in an Hash

retrieve_path_in_hash.rb

def retrieve(path, hash)
  remainder = hash.fetch(path.shift, nil)
  remainder.is_a?(Hash) ? retrieve(path, remainder) : remainder
end

path = [:foo, :bar, :baz]
hash = { foo: { bar: { baz: 123 } } }

puts "path: #{path}"
puts "hash: #{hash}"
puts "result: #{retrieve(path, hash)}"