"bury" feature, similar to 'dig' but opposite
In Matz's recent Rubyconf talk, he used this example for the new 'dig' feature coming in Ruby 2.3:
# we want this data[:users][:name] # we can do this w/o nil errors data.dig(:users, 0, :name)
What I'm proposing is a 'bury' feature that is the opposite of 'dig' in a sense. It inserts a value at an arbitrary depth, for example:
data.bury(:users, 0, :name, 'Matz')
This will create a nested hash or an array automatically at each step if it doesn't already exist, and that can be inferred from the what the user is passing (such as a symbol or string for a hash or an integer for an array). It's similar to autovivification but more powerful!
This behavior is very common, at least in my experience, so a dry method built into Ruby would be awesome!