On Thu, Oct 1, 2009 at 1:23 PM, George George <george.githinji / gmail.com> wrote: > Given an array of strings e.g. > ¨Â Û¢áâ㢬¢áâãäå¢ ¢ä忢¬¢øùú÷ê¢Ý áîïæ äéææåòåîìåîçôèó¬ > how can you efficiently create new arrays of strings which are of the > same length. for example the above array can be transformed into Well, here's something close: h = {} x.each do |i| h[i.length] ||= [] h[i.length] << i end h is now a hash: {3=>["abc", "def"], 5=>["abcde", "xyzwj"]} That's close enough to what you want that I'm sure you can run with it. Look in the "Group by unique entries of a hash" thread for more ideas. > > x1 = ["abc","def"] > x2 = ["abcde","xyzwj"] > > Thank you. > -- > Posted via http://www.ruby-forum.com/. > > -- Paul Smith http://www.nomadicfun.co.uk paul / pollyandpaul.co.uk