diff options
Diffstat (limited to 'activesupport')
| -rw-r--r-- | activesupport/CHANGELOG.md | 4 | ||||
| -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 |
3 files changed, 20 insertions, 0 deletions
diff --git a/activesupport/CHANGELOG.md b/activesupport/CHANGELOG.md index bd333da081..3d4cc8fae6 100644 --- a/activesupport/CHANGELOG.md +++ b/activesupport/CHANGELOG.md @@ -1,3 +1,7 @@ +* Add `Array#second_to_last` and `Array#third_to_last` methods. + + *Brian Christian* + * Fix regression in `Hash#dig` for HashWithIndifferentAccess. *Jon Moss* diff --git a/activesupport/lib/active_support/core_ext/array/access.rb b/activesupport/lib/active_support/core_ext/array/access.rb index 3177d8498e..37d833887a 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 ).third_to_last # => "c" + def third_to_last + self[-3] + end + + # Equal to <tt>self[-2]</tt>. + # + # %w( a b c d e ).second_to_last # => "d" + def second_to_last + 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..1d834667f0 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.third_to_last + assert_equal array[-2], array.second_to_last end def test_without |