Class: Hash

Inherits:
Object
  • Object
show all
Defined in:
lib/with_validations/core_ext/hash.rb

Instance Method Summary collapse

Instance Method Details

#delete_keys!(*keys) ⇒ Hash

Note:

keys in ‘*keys` not present in `self` are silently ignored.

Removes ‘*keys` from self.

Returns:

  • (Hash) —

    self with ‘*keys` removed.



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# File 'lib/with_validations/core_ext/hash.rb', line 8

def delete_keys!(*keys)
  keys.each do |key|
    self.delete(key)
  end
end

#slice(*keys) ⇒ Hash

Note:

keys in ‘*keys` not present in `self` are silently ignored.

Creates a sub-hash from ‘self` with the keys from `*keys`.

Returns:

  • (Hash) —

    a copy of ‘self`.



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# File 'lib/with_validations/core_ext/hash.rb', line 18

def slice(*keys)
  self.select { |k,v| keys.include?(k) }
end