diff options
Diffstat (limited to 'activesupport/lib/active_support/core_ext/hash/slice.rb')
-rw-r--r-- | activesupport/lib/active_support/core_ext/hash/slice.rb | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/activesupport/lib/active_support/core_ext/hash/slice.rb b/activesupport/lib/active_support/core_ext/hash/slice.rb index 45fec57009..a92c5968ed 100644 --- a/activesupport/lib/active_support/core_ext/hash/slice.rb +++ b/activesupport/lib/active_support/core_ext/hash/slice.rb @@ -21,7 +21,7 @@ class Hash # Returns a hash containing the removed key/value pairs. # # { a: 1, b: 2, c: 3, d: 4 }.slice!(:a, :b) - # # => {:c => 3, :d => 4} + # # => {c: 3, d: 4} def slice!(*keys) keys.map! { |key| convert_key(key) } if respond_to?(:convert_key, true) omit = slice(*self.keys - keys) @@ -32,9 +32,9 @@ class Hash # Removes and returns the key/value pairs matching the given keys. # - # { a: 1, b: 2, c: 3, d: 4 }.extract!(:a, :b) - # # => {:a => 1, :b => 2} + # { a: 1, b: 2, c: 3, d: 4 }.extract!(:a, :b) # => { a: 1, b: 2 } + # { a: 1, b: 2 }.extract!(:a, :x) # => { a: 1 } def extract!(*keys) - keys.each_with_object({}) { |key, result| result[key] = delete(key) } + keys.each_with_object(self.class.new) { |key, result| result[key] = delete(key) if has_key?(key) } end end |