“ruby hash padrão Proc” Respostas de código

ruby hash padrão Proc

layers = Hash.new do |layers, layer_name|
  layers[layer_name] = Hash.new(&layers.default_proc)
end

layers[:layer_1][:layer_2][:layer_3] = 'a secret'

layers # => { layer_1: { layer_2: { layers_3: 'a secret' } } }