From: Simon Strandgaard <0bz63fz3m1qt3001@...>
Date: 2003-06-09T03:36:23+09:00
Subject: Re: [RCR] join block

I know this has been discussed before, but I don't 
know what the conclution were..  What is your opinions ?


class Array
	alias :oldjoin :join
	def join(sep=$,)
		return oldjoin(sep) if not block_given?
		collect { |y| yield(y) }.oldjoin(sep)
	end
end  


p [1, 2, 3].join(", ") { |v| "(#{v})" }
# "(1), (2), (3)"

p [1, 2, 3].join(" ") { |v| "<td>#{v}</td>" }
# "<td>1</td> <td>2</td> <td>3</td>"

puts [1, 2, 3].join { |v| "\#  #{v}\n" }
#  1
#  2
#  3

p [1, 2, 3].join(" ")
# "1 2 3"

--
Simon Strandgaard