Class: Hash

Inherits:

Object

• Object
• Hash

Defined in:

lib/with_validations/core_ext/hash.rb

Instance Method Summary

• #delete_keys!(*keys) ⇒ Hash

  Removes ‘*keys` from self.

• #slice(*keys) ⇒ Hash

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

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.

# 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`.

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

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