------ extPart_000_0246_01C7FF4C.8DDBAD10 Content-Type: text/plain; charset s-ascii" Content-Transfer-Encoding: 7bit > -----Original Message----- > From: list-bounce / example.com > [mailto:list-bounce / example.com] On Behalf Of Analogy Analogy > Sent: Tuesday, September 25, 2007 7:37 AM > To: ruby-talk ML > Subject: array manipulation > > Hi Folks, > > I have a general newbie type question > Say I have a 2D array that I obtained from an external program: > > array ["a", "b", "", "c", "5"], ["d", "e", "f", "9.0", > "7", "g", "", > "", ""], ["", "h", "5", "", ""]] > > > Is there a way to remove just the last two empty strings ("") in the > last element, so the array will look like this: > > array ["a", "b", "", "c", "5"], ["d", "e", "f", "9.0", > "7", "g", "", > "", ""], ["", "h", "5"]] > > I've looked at array.compact, but this removes all of the empty > strings(""), plus I'd have to flatten the array to 1D, which > is no good. > Thanks in advance! > -- > Posted via http://www.ruby-forum.com/. > If I understand you right and all you want to do is to remove empty strings from the end of the last array in an array of arrays, this should suffice: irb(main):001:0> a ["a", "b", "", "c", "5"], ["d", "e", "f", "9.0", "7", "g", "", "", ""], ["", "h", "5", "", ""]] [["a", "b", "", "c", "5"], ["d", "e", "f", "9.0", "7", "g", "", "", ""], ["", "h", "5", "", ""]] irb(main):002:0> while a.last.last "" do irb(main):003:1* a.last.pop irb(main):004:1> end nil irb(main):005:0> a [["a", "b", "", "c", "5"], ["d", "e", "f", "9.0", "7", "g", "", "", ""], ["", "h", "5"]] irb(main):006:0> HTH, Felix ------ extPart_000_0246_01C7FF4C.8DDBAD10 Content-Type: application/x-pkcs7-signature; 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