Method: Hash#only_keys?

Defined in:
lib/core/facets/hash/keys.rb

#only_keys?(*check_keys) ⇒ Boolean Also known as: has_only_keys?

Returns true if the hash contains only the given keys, otherwise false.

h = { :a => 1, :b => 2 }
h.has_only_keys?( :a, :b )   #=> true
h.has_only_keys?( :a )       #=> false

CREDIT: Trans

Returns:



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# File 'lib/core/facets/hash/keys.rb', line 28

def only_keys?(*check_keys)
  unknown_keys = self.keys - check_keys
  return unknown_keys.empty?
end