From: Simon Strandgaard <neoneye@...>
Date: 2005-10-29T02:17:54+09:00
Subject: Re: Cleaner syntax for .map (is there already a way, or ruby2 idea?)

Maybe this can be useful?

--
Simon Strandgaard


class Array
  def xmap(*symbols)
    symbols.each do |symbol|
      s = symbol.to_s
      eval "def #{s}(*args);map{|i|i.send(:#{s}, *args)};end"
    end
  end
end


ary = %w(a b c d e)

ary.xmap(:upcase, :gsub)

p ary[0].upcase          # "A"
p ary.upcase             # ["A", "B", "C", "D", "E"]
p ary.gsub(/[bd]/, 'X')  # ["a", "X", "c", "X", "e"]