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An excellent bridge from the world of Ruby to the world of OS X.
MacRuby in Action is a tutorial for Ruby developers who want to code for Mac OS X without learning Objective-C. You'll learn the ins and outs of the MacRuby language, including straightforward examples of creating OS X applications using Cocoa components.
For Rubyists, it's a real drag switching to a static language like Objective-C for Mac development. Fortunately, you don't have to. MacRuby is a Ruby 1.9 implementation that sits right on the Mac OS X core. It gives you access to the Cocoa framework and easy interoperability with the Mac platform.
MacRuby in Action teaches Ruby developers how to code OS X applications in Ruby. You'll explore key Cocoa design patterns, along with a few twists that MacRuby makes possible. You'll also pick up high-value techniques including system scripting, automated testing practices, and getting your apps ready for the Mac App Store.
Brendan G. Lim is a professional Ruby and Objective-C developer specializing in Rails and mobile development. Jerry Cheung is a Rails engineer working with emerging technologies like MacRuby and Node.js. Jeremy McAnally is a web and mobile developer and coauthor of Ruby in Practice.