Contents

unless Array.method_defined? :tail
  class Array
    # Returns a new array rejecting the current one's first element.
    #
    # @return [Array] a new array without the first element or nil if this
    #   array is empty
    #
    # @example
    #   [1, 2, 3].tail #=> [2, 3]
    #   [].tail #=> nil
    def tail
      self[1..-1]
    end
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
powerpack-0.0.7	lib/powerpack/array/tail.rb
powerpack-0.0.6	lib/powerpack/array/tail.rb
powerpack-0.0.5	lib/powerpack/array/tail.rb