access any key in a hash that has a default value : Hash.new « Hash « Ruby

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Ruby » Hash » Hash.new   access any key in a hash that has a default value if the key or value doesn't exist, accessing the hash will return the default value: months = Hash.new( "month" ) months[0] # or: months[72] # or: months[234]   Related examples in the same category 1.  Creating Hashes 2.  You can test to see if a hash is empty with empty? 3.  Test how big it is with length or size 4.  use new to create a hash with a default value which is otherwise just nil 5.  Hash with => 6.  Hash.new with block logic 7.  This lazily initialized hash maps integers to their factorials

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