Added Array#prepend as an alias for Array#unshift and Array#append as an alias for Array#<< [DHH]

activesupport/CHANGELOG

@@ -1,5 +1,7 @@
 *Rails 3.2.0 (unreleased)*
 
+* Added Array#prepend as an alias for Array#unshift and Array#append as an alias for Array#<< [DHH]
+
 * Removed support for using Module#delegate to delegate to non-public methods [Jon Leighton]
 
 * The definition of blank string for Ruby 1.9 has been extended to Unicode whitespace.

activesupport/lib/active_support/core_ext/array.rb

@@ -5,3 +5,4 @@ require 'active_support/core_ext/array/conversions'
 require 'active_support/core_ext/array/extract_options'
 require 'active_support/core_ext/array/grouping'
 require 'active_support/core_ext/array/random_access'
+require 'active_support/core_ext/array/prepend_and_append'

activesupport/lib/active_support/core_ext/array/prepend_and_append.rb

@@ -0,0 +1,7 @@
+class Array
+  # The human way of thinking about adding stuff to the end of a list is with append
+  alias_method :append,  :<<
+
+  # The human way of thinking about adding stuff to the beginning of a list is with prepend
+  alias_method :prepend, :unshift
+end

activesupport/test/core_ext/array_ext_test.rb

@@ -465,3 +465,13 @@ class ArrayWrapperTests < Test::Unit::TestCase
     assert_equal DoubtfulToAry.new.to_ary, Array.wrap(DoubtfulToAry.new)
   end
 end
+
+class ArrayPrependAppendTest < Test::Unit::TestCase
+  def test_append
+    assert_equal [1, 2], [1].append(2)
+  end
+  
+  def test_prepend
+    assert_equal [2, 1], [1].prepend(2)
+  end
+end