tailieunhanh - Programming Ruby 1.9

Ruby is the fastest growing and most exciting dynamic language out there. If you need to get working programs delivered fast, you should add Ruby to your toolbox. This book is the only complete reference for Ruby , the very latest version of Ruby. | Programming Ruby The Pragmatic Programmers Guide Dave Thomas with Chad Fowler and Andy Hunt The Pragmatic Bookshelf Raleigh North Carolina Dallas Texas Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks. Where those designations appear in this book and The Pragmatic Programmers LLC was aware of a trademark claim the designations have been printed in initial capital letters or in all capitals. Every precaution was taken in the preparation of this book. However the publisher assumes no responsibility for errors or omissions or for damages that may result from the use of information including program listings contained herein. This book is a heavily revised version of the book Programming Ruby originally published by Addison Wesley. This book is printed with their permission. Our Pragmatic courses workshops and other products can help you and your team create better software and have more fun. For more information as well as the latest Pragmatic titles please visit us at http Copyright 2009 The Pragmatic Programmers LLC. All rights reserved. No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without the prior consent of the publisher. Printed in the United States of America. ISBN 1-934356-08-5 ISBN-13 978-1-934356-08-1 Text printed on acid-free .