From: "ako..." <akonsu@...>
Date: 2006-08-26T15:15:03+09:00
Subject: map and join or inject?

hello,

given an array of strings A, i need to map a given function F to each
element of A and concatenate the results.

which way is more memory efficient:

1. A.inject("") { |t,x| t + F(x) }
2. (A.map { |x| F(x) }).join

thanks
konstantin