delaware = { 1 => "Two", 2 => "New Value", 3 => "New Three" }myHash = { 1 => "One", 2 => "Two", 3 => "Three", 4 => "Four", 5 => "Five" }myHash.merge delaware # => {5=>"Five", 1=>"Two", 2=>"New Value", 3=>"New Three", 4=>"Four"}