{"product_id":"practical-object-oriented-design","title":"Practical Object-Oriented Design","description":"Ruby’s widely admired simplicity has a downside: too many Ruby and Rails applications have been created without concern for their long-term maintenance or evolution. The Web is awash in Ruby code that is now virtually impossible to change or extend. This text helps you solve that problem by using powerful real-world object-oriented design techniques, thoroughly explained via simple and practical Ruby examples. \u003cp\u003eSandi Metz has distilled a lifetime of conversations and presentations about object-oriented design into a proven set of Ruby-focused practices for crafting manageable, extensible, and pleasing code. She demonstrates how to build new applications that can survive success, and repair existing applications that have become impossible to change. Each technique is illustrated with extended examples, all downloadable from the companion Web site. Fully updated for Ruby 2.X, this guide shows how to: \u003c\/p\u003e \u003cul\u003e  \u003cli\u003eDecide what belongs in a single Ruby class \u003c\/li\u003e  \u003cli\u003eAvoid entangling objects that should be kept separate \u003c\/li\u003e  \u003cli\u003eDefine flexible interfaces among objects \u003c\/li\u003e  \u003cli\u003eReduce programming overhead costs with duck typing \u003c\/li\u003e  \u003cli\u003eSuccessfully apply inheritance \u003c\/li\u003e  \u003cli\u003eBuild objects via composition \u003c\/li\u003e  \u003cli\u003eDesign cost-effective tests \u003c\/li\u003e  \u003cli\u003eSolve common problems associated with poorly designed Ruby code \u003c\/li\u003e \u003c\/ul\u003e Whatever your previous Ruby experience, \u003cem\u003ePractical Object-Oriented Design in Ruby\u003c\/em\u003e, 2nd Edition will guide you to the superior outcomes you’re looking for.","brand":"Pearson Education","offers":[{"title":"Default Title","offer_id":45998621688046,"sku":"9780134456478","price":61.07,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/9612\/7726\/files\/A100061719972_Lrg.jpg?v=1733537568","url":"https:\/\/bookland.com.au\/products\/practical-object-oriented-design","provider":"Book Land AU","version":"1.0","type":"link"}