diff options
Diffstat (limited to 'activesupport')
| -rw-r--r-- | activesupport/lib/active_support/core_ext/array/access.rb | 14 | ||||
| -rw-r--r-- | activesupport/test/core_ext/array/access_test.rb | 2 |
2 files changed, 16 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/array/access.rb b/activesupport/lib/active_support/core_ext/array/access.rb index 3177d8498e..e413acddc5 100644 --- a/activesupport/lib/active_support/core_ext/array/access.rb +++ b/activesupport/lib/active_support/core_ext/array/access.rb @@ -73,4 +73,18 @@ class Array def forty_two self[41] end + + # Equal to <tt>self[-3]</tt>. + # + # %w( a b c d e ).antepenultimate # => "c" + def antepenultimate + self[-3] + end + + # Equal to <tt>self[-2]</tt>. + # + # %w( a b c d e ).penultimate # => "d" + def penultimate + self[-2] + end end diff --git a/activesupport/test/core_ext/array/access_test.rb b/activesupport/test/core_ext/array/access_test.rb index 3f1e0c4cb4..d7a3fb56c2 100644 --- a/activesupport/test/core_ext/array/access_test.rb +++ b/activesupport/test/core_ext/array/access_test.rb @@ -26,6 +26,8 @@ class AccessTest < ActiveSupport::TestCase assert_equal array[3], array.fourth assert_equal array[4], array.fifth assert_equal array[41], array.forty_two + assert_equal array[-3], array.antepenultimate + assert_equal array[-2], array.penultimate end def test_without |