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-rw-r--r--activesupport/lib/active_support/core_ext/array/access.rb12
1 files changed, 12 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 ca66d806ef..3177d8498e 100644
--- a/activesupport/lib/active_support/core_ext/array/access.rb
+++ b/activesupport/lib/active_support/core_ext/array/access.rb
@@ -27,6 +27,18 @@ class Array
end
end
+ # Returns a copy of the Array without the specified elements.
+ #
+ # people = ["David", "Rafael", "Aaron", "Todd"]
+ # people.without "Aaron", "Todd"
+ # => ["David", "Rafael"]
+ #
+ # Note: This is an optimization of `Enumerable#without` that uses `Array#-`
+ # instead of `Array#reject` for performance reasons.
+ def without(*elements)
+ self - elements
+ end
+
# Equal to <tt>self[1]</tt>.
#
# %w( a b c d e ).second # => "b"