diff options
Diffstat (limited to 'activesupport/lib')
-rw-r--r-- | activesupport/lib/active_support/core_ext/enumerable.rb | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/activesupport/lib/active_support/core_ext/enumerable.rb b/activesupport/lib/active_support/core_ext/enumerable.rb index 434a32b29b..e89b7e392e 100644 --- a/activesupport/lib/active_support/core_ext/enumerable.rb +++ b/activesupport/lib/active_support/core_ext/enumerable.rb @@ -55,12 +55,10 @@ module Enumerable # [].sum(Payment.new(0)) { |i| i.amount } # => Payment.new(0) # def sum(identity = 0, &block) - return identity unless size > 0 - if block_given? - map(&block).sum + map(&block).sum(identity) else - inject { |sum, element| sum + element } + inject { |sum, element| sum + element } || identity end end |