RosettaCodeData/Task/Associative-array-Creation/Ruby/associative-array-creation-...

5 lines
280 B
Ruby

hash = Hash.new { |h, k| h[k] = "key #{k} was added at #{Time.now}" }
hash[777] # => 'key 777 was added at Sun Apr 03 13:49:57 -0700 2011'
hash[555] # => 'key 555 was added at Sun Apr 03 13:50:01 -0700 2011'
hash[777] # => 'key 777 was added at Sun Apr 03 13:49:57 -0700 2011'