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-rw-r--r--activesupport/lib/active_support/core_ext/array/conversions.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/array/conversions.rb b/activesupport/lib/active_support/core_ext/array/conversions.rb
index bfa92c3031..46962ded1b 100644
--- a/activesupport/lib/active_support/core_ext/array/conversions.rb
+++ b/activesupport/lib/active_support/core_ext/array/conversions.rb
@@ -11,6 +11,8 @@ module ActiveSupport #:nodoc:
options.reverse_merge! :connector => 'and', :skip_last_comma => false
case length
+ when 0
+ ""
when 1
self[0]
when 2