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 | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/activesupport/lib/active_support/core_ext/hash/slice.rb b/activesupport/lib/active_support/core_ext/hash/slice.rb index b862b5ae2a..45fec57009 100644 --- a/activesupport/lib/active_support/core_ext/hash/slice.rb +++ b/activesupport/lib/active_support/core_ext/hash/slice.rb @@ -3,7 +3,7 @@ class Hash # limiting an options hash to valid keys before passing to a method: # # def search(criteria = {}) - # assert_valid_keys(:mass, :velocity, :time) + # criteria.assert_valid_keys(:mass, :velocity, :time) # end # # search(options.slice(:mass, :velocity, :time)) @@ -19,7 +19,9 @@ class Hash # Replaces the hash with only the given keys. # Returns a hash containing the removed key/value pairs. - # {:a => 1, :b => 2, :c => 3, :d => 4}.slice!(:a, :b) # => {:c => 3, :d => 4} + # + # { a: 1, b: 2, c: 3, d: 4 }.slice!(:a, :b) + # # => {:c => 3, :d => 4} def slice!(*keys) keys.map! { |key| convert_key(key) } if respond_to?(:convert_key, true) omit = slice(*self.keys - keys) @@ -29,7 +31,9 @@ class Hash end # 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} def extract!(*keys) keys.each_with_object({}) { |key, result| result[key] = delete(key) } end |