1 files changed, 9 insertions, 3 deletions
diff --git a/activesupport/lib/active_support/core_ext/hash/except.rb b/activesupport/lib/active_support/core_ext/hash/except.rb
index 5cb00d0ebd..6e397abf51 100644
--- a/activesupport/lib/active_support/core_ext/hash/except.rb
+++ b/activesupport/lib/active_support/core_ext/hash/except.rb
@@ -1,13 +1,19 @@
 class Hash
-  # Return a hash that includes everything but the given keys. This is useful for
-  # limiting a set of parameters to everything but a few known toggles:
+  # Returns a hash that includes everything but the given keys.
+  #   hash = { a: true, b: false, c: nil}
+  #   hash.except(:c) # => { a: true, b: false}
+  #   hash # => { a: true, b: false, c: nil}
   #
-  #   @person.update_attributes(params[:person].except(:admin))
+  # This is useful for limiting a set of parameters to everything but a few known toggles:
+  #   @person.update(params[:person].except(:admin))
   def except(*keys)
     dup.except!(*keys)
   end
 
   # Replaces the hash without the given keys.
+  #   hash = { a: true, b: false, c: nil}
+  #   hash.except!(:c) # => { a: true, b: false}
+  #   hash # => { a: true, b: false }
   def except!(*keys)
     keys.each { |key| delete(key) }
     self