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


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class Array
  # The human way of thinking about adding stuff to the end of a list is with append.
  alias_method :append,  :push unless [].respond_to?(:append)

  # The human way of thinking about adding stuff to the beginning of a list is with prepend.
  alias_method :prepend, :unshift unless [].respond_to?(:prepend)
end