From 22af62cf486721ee2e45bb720c42ac2f4121faf4 Mon Sep 17 00:00:00 2001
From: David Heinemeier Hansson <david@loudthinking.com>
Date: Tue, 17 Jun 2008 13:37:57 -0500
Subject: [PATCH] Added Array#second through Array#tenth as aliases for
 Array#[1] through Array#[9] [DHH]

---
 activesupport/CHANGELOG                       |  2 +
 .../active_support/core_ext/array/access.rb   | 45 +++++++++++++++++++
 activesupport/test/core_ext/array_ext_test.rb | 14 ++++++
 3 files changed, 61 insertions(+)

diff --git a/activesupport/CHANGELOG b/activesupport/CHANGELOG
index 1267f05c7509e..d87558aba93c4 100644
--- a/activesupport/CHANGELOG
+++ b/activesupport/CHANGELOG
@@ -1,5 +1,7 @@
 *Edge*
 
+* Added Array#second through Array#tenth as aliases for Array#[1] through Array#[9] [DHH]
+
 * Added test/do declaration style testing to ActiveSupport::TestCase [DHH via Jay Fields]
 
 * Added Object#present? which is equivalent to !Object#blank? [DHH]
diff --git a/activesupport/lib/active_support/core_ext/array/access.rb b/activesupport/lib/active_support/core_ext/array/access.rb
index 21a8584bb9198..4ac95efdc7fb0 100644
--- a/activesupport/lib/active_support/core_ext/array/access.rb
+++ b/activesupport/lib/active_support/core_ext/array/access.rb
@@ -20,6 +20,51 @@ def from(position)
         def to(position)
           self[0..position]
         end
+
+        # Equal to self[1]
+        def second
+          self[1]
+        end
+
+        # Equal to self[2]
+        def third
+          self[2]
+        end
+
+        # Equal to self[3]
+        def fourth
+          self[3]
+        end
+
+        # Equal to self[4]
+        def fifth
+          self[4]
+        end
+
+        # Equal to self[5]
+        def sixth
+          self[5]
+        end
+
+        # Equal to self[6]
+        def seventh
+          self[6]
+        end
+
+        # Equal to self[7]
+        def eighth
+          self[7]
+        end
+
+        # Equal to self[8]
+        def ninth
+          self[8]
+        end
+
+        # Equal to self[9]
+        def tenth
+          self[9]
+        end
       end
     end
   end
diff --git a/activesupport/test/core_ext/array_ext_test.rb b/activesupport/test/core_ext/array_ext_test.rb
index 73fbeb8b6b4c5..7563be44f8333 100644
--- a/activesupport/test/core_ext/array_ext_test.rb
+++ b/activesupport/test/core_ext/array_ext_test.rb
@@ -13,6 +13,20 @@ def test_to
     assert_equal %w( a b c ), %w( a b c d ).to(2)
     assert_equal %w( a b c d ), %w( a b c d ).to(10)
   end
+  
+  def test_second_through_tenth
+    array = (1..10).to_a
+    
+    assert_equal array[1], array.second
+    assert_equal array[2], array.third
+    assert_equal array[3], array.fourth
+    assert_equal array[4], array.fifth
+    assert_equal array[5], array.sixth
+    assert_equal array[6], array.seventh
+    assert_equal array[7], array.eighth
+    assert_equal array[8], array.ninth
+    assert_equal array[9], array.tenth
+  end
 end
 
 class ArrayExtToParamTests < Test::Unit::TestCase