Module: TwoWayMapper::Tools

Defined in:
lib/two_way_mapper/tools.rb

Class Method Summary collapse

Class Method Details

.first_item_from_hash!(hash) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/two_way_mapper/tools.rb', line 6

def first_item_from_hash!(hash)
  raise ArgumentError unless hash.is_a?(Hash)
  raise ArgumentError unless (first = hash.first)

  hash.delete(first[0])
  first
end