Class: Hash

Inherits:

Object

• Object
• Hash

Defined in:

lib/hash_keys.rb

Instance Method Summary

• #reject_keys(*keys) ⇒ Object (also: #eject_keys)

  Return a hash containing everything except the named keys.

• #select_keys(*keys) ⇒ Object (also: #retain_keys)

  Return a hash containing only the named keys.

Instance Method Details

#reject_keys(*keys) ⇒ Object Also known as: eject_keys

Return a hash containing everything except the named keys

# File 'lib/hash_keys.rb', line 10

def reject_keys *keys
  reject{|k, _| keys.include? k}
end

#select_keys(*keys) ⇒ Object Also known as: retain_keys

Return a hash containing only the named keys

# File 'lib/hash_keys.rb', line 3

def select_keys *keys
  select{|k, _| keys.include? k}
end